mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-07 11:13:41 +02:00
3179 lines
115 KiB
C
3179 lines
115 KiB
C
/*
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* Apple HTTP Live Streaming segmenter
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* Copyright (c) 2012, Luca Barbato
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* Copyright (c) 2017 Akamai Technologies, Inc.
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include <float.h>
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#include <stdint.h>
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#if CONFIG_GCRYPT
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#include <gcrypt.h>
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#elif CONFIG_OPENSSL
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#include <openssl/rand.h>
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#endif
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#include "libavutil/avassert.h"
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#include "libavutil/mathematics.h"
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#include "libavutil/parseutils.h"
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#include "libavutil/avstring.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/random_seed.h"
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#include "libavutil/opt.h"
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#include "libavutil/log.h"
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#include "libavutil/time.h"
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#include "libavutil/time_internal.h"
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#include "avformat.h"
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#include "avio_internal.h"
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#include "avc.h"
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#if CONFIG_HTTP_PROTOCOL
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#include "http.h"
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#endif
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#include "hlsplaylist.h"
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#include "internal.h"
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#include "os_support.h"
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typedef enum {
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HLS_START_SEQUENCE_AS_START_NUMBER = 0,
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HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH = 1,
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HLS_START_SEQUENCE_AS_FORMATTED_DATETIME = 2, // YYYYMMDDhhmmss
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HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH = 3,
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HLS_START_SEQUENCE_LAST, // unused
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} StartSequenceSourceType;
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typedef enum {
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CODEC_ATTRIBUTE_WRITTEN = 0,
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CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN,
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} CodecAttributeStatus;
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#define KEYSIZE 16
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#define LINE_BUFFER_SIZE MAX_URL_SIZE
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#define HLS_MICROSECOND_UNIT 1000000
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#define BUFSIZE (16 * 1024)
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#define POSTFIX_PATTERN "_%d"
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typedef struct HLSSegment {
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char filename[MAX_URL_SIZE];
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char sub_filename[MAX_URL_SIZE];
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double duration; /* in seconds */
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int discont;
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int64_t pos;
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int64_t size;
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int64_t keyframe_pos;
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int64_t keyframe_size;
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unsigned var_stream_idx;
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char key_uri[LINE_BUFFER_SIZE + 1];
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char iv_string[KEYSIZE*2 + 1];
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struct HLSSegment *next;
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double discont_program_date_time;
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} HLSSegment;
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typedef enum HLSFlags {
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// Generate a single media file and use byte ranges in the playlist.
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HLS_SINGLE_FILE = (1 << 0),
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HLS_DELETE_SEGMENTS = (1 << 1),
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HLS_ROUND_DURATIONS = (1 << 2),
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HLS_DISCONT_START = (1 << 3),
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HLS_OMIT_ENDLIST = (1 << 4),
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HLS_SPLIT_BY_TIME = (1 << 5),
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HLS_APPEND_LIST = (1 << 6),
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HLS_PROGRAM_DATE_TIME = (1 << 7),
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HLS_SECOND_LEVEL_SEGMENT_INDEX = (1 << 8), // include segment index in segment filenames when use_localtime e.g.: %%03d
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HLS_SECOND_LEVEL_SEGMENT_DURATION = (1 << 9), // include segment duration (microsec) in segment filenames when use_localtime e.g.: %%09t
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HLS_SECOND_LEVEL_SEGMENT_SIZE = (1 << 10), // include segment size (bytes) in segment filenames when use_localtime e.g.: %%014s
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HLS_TEMP_FILE = (1 << 11),
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HLS_PERIODIC_REKEY = (1 << 12),
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HLS_INDEPENDENT_SEGMENTS = (1 << 13),
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HLS_I_FRAMES_ONLY = (1 << 14),
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} HLSFlags;
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typedef enum {
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SEGMENT_TYPE_MPEGTS,
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SEGMENT_TYPE_FMP4,
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} SegmentType;
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typedef struct VariantStream {
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unsigned var_stream_idx;
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unsigned number;
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int64_t sequence;
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const AVOutputFormat *oformat;
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const AVOutputFormat *vtt_oformat;
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AVIOContext *out;
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AVIOContext *out_single_file;
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int packets_written;
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int init_range_length;
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uint8_t *temp_buffer;
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uint8_t *init_buffer;
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AVFormatContext *avf;
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AVFormatContext *vtt_avf;
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int has_video;
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int has_subtitle;
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int new_start;
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int start_pts_from_audio;
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double dpp; // duration per packet
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int64_t start_pts;
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int64_t end_pts;
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int64_t video_lastpos;
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int64_t video_keyframe_pos;
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int64_t video_keyframe_size;
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double duration; // last segment duration computed so far, in seconds
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int64_t start_pos; // last segment starting position
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int64_t size; // last segment size
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int nb_entries;
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int discontinuity_set;
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int discontinuity;
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int reference_stream_index;
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HLSSegment *segments;
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HLSSegment *last_segment;
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HLSSegment *old_segments;
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char *basename_tmp;
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char *basename;
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char *vtt_basename;
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char *vtt_m3u8_name;
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char *m3u8_name;
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double initial_prog_date_time;
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char current_segment_final_filename_fmt[MAX_URL_SIZE]; // when renaming segments
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char *fmp4_init_filename;
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char *base_output_dirname;
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int encrypt_started;
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char key_file[LINE_BUFFER_SIZE + 1];
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char key_uri[LINE_BUFFER_SIZE + 1];
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char key_string[KEYSIZE*2 + 1];
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char iv_string[KEYSIZE*2 + 1];
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AVStream **streams;
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char codec_attr[128];
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CodecAttributeStatus attr_status;
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unsigned int nb_streams;
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int m3u8_created; /* status of media play-list creation */
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int is_default; /* default status of audio group */
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const char *language; /* audio lauguage name */
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const char *agroup; /* audio group name */
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const char *sgroup; /* subtitle group name */
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const char *ccgroup; /* closed caption group name */
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const char *varname; /* variant name */
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} VariantStream;
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typedef struct ClosedCaptionsStream {
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const char *ccgroup; /* closed caption group name */
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const char *instreamid; /* closed captions INSTREAM-ID */
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const char *language; /* closed captions langauge */
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} ClosedCaptionsStream;
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typedef struct HLSContext {
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const AVClass *class; // Class for private options.
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int64_t start_sequence;
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uint32_t start_sequence_source_type; // enum StartSequenceSourceType
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int64_t time; // Set by a private option.
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int64_t init_time; // Set by a private option.
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int max_nb_segments; // Set by a private option.
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int hls_delete_threshold; // Set by a private option.
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uint32_t flags; // enum HLSFlags
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uint32_t pl_type; // enum PlaylistType
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char *segment_filename;
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char *fmp4_init_filename;
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int segment_type;
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int resend_init_file; ///< resend init file into disk after refresh m3u8
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int use_localtime; ///< flag to expand filename with localtime
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int use_localtime_mkdir;///< flag to mkdir dirname in timebased filename
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int allowcache;
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int64_t recording_time;
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int64_t max_seg_size; // every segment file max size
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char *baseurl;
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char *vtt_format_options_str;
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char *subtitle_filename;
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AVDictionary *format_options;
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int encrypt;
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char *key;
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char *key_url;
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char *iv;
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char *key_basename;
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int encrypt_started;
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char *key_info_file;
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char key_file[LINE_BUFFER_SIZE + 1];
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char key_uri[LINE_BUFFER_SIZE + 1];
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char key_string[KEYSIZE*2 + 1];
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char iv_string[KEYSIZE*2 + 1];
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AVDictionary *vtt_format_options;
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char *method;
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char *user_agent;
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VariantStream *var_streams;
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unsigned int nb_varstreams;
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ClosedCaptionsStream *cc_streams;
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unsigned int nb_ccstreams;
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int master_m3u8_created; /* status of master play-list creation */
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char *master_m3u8_url; /* URL of the master m3u8 file */
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int version; /* HLS version */
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char *var_stream_map; /* user specified variant stream map string */
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char *cc_stream_map; /* user specified closed caption streams map string */
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char *master_pl_name;
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unsigned int master_publish_rate;
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int http_persistent;
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AVIOContext *m3u8_out;
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AVIOContext *sub_m3u8_out;
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int64_t timeout;
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int ignore_io_errors;
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char *headers;
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int has_default_key; /* has DEFAULT field of var_stream_map */
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int has_video_m3u8; /* has video stream m3u8 list */
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} HLSContext;
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static int strftime_expand(const char *fmt, char **dest)
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{
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int r = 1;
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time_t now0;
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struct tm *tm, tmpbuf;
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char *buf;
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buf = av_mallocz(MAX_URL_SIZE);
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if (!buf)
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return AVERROR(ENOMEM);
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time(&now0);
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tm = localtime_r(&now0, &tmpbuf);
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r = strftime(buf, MAX_URL_SIZE, fmt, tm);
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if (!r) {
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av_free(buf);
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return AVERROR(EINVAL);
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}
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*dest = buf;
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return r;
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}
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static int hlsenc_io_open(AVFormatContext *s, AVIOContext **pb, char *filename,
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AVDictionary **options)
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{
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HLSContext *hls = s->priv_data;
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int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
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int err = AVERROR_MUXER_NOT_FOUND;
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if (!*pb || !http_base_proto || !hls->http_persistent) {
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err = s->io_open(s, pb, filename, AVIO_FLAG_WRITE, options);
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#if CONFIG_HTTP_PROTOCOL
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} else {
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URLContext *http_url_context = ffio_geturlcontext(*pb);
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av_assert0(http_url_context);
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err = ff_http_do_new_request(http_url_context, filename);
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if (err < 0)
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ff_format_io_close(s, pb);
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#endif
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}
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return err;
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}
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static int hlsenc_io_close(AVFormatContext *s, AVIOContext **pb, char *filename)
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{
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HLSContext *hls = s->priv_data;
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int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
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int ret = 0;
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if (!*pb)
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return ret;
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if (!http_base_proto || !hls->http_persistent || hls->key_info_file || hls->encrypt) {
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ff_format_io_close(s, pb);
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#if CONFIG_HTTP_PROTOCOL
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} else {
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URLContext *http_url_context = ffio_geturlcontext(*pb);
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av_assert0(http_url_context);
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avio_flush(*pb);
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ffurl_shutdown(http_url_context, AVIO_FLAG_WRITE);
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ret = ff_http_get_shutdown_status(http_url_context);
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#endif
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}
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return ret;
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}
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static void set_http_options(AVFormatContext *s, AVDictionary **options, HLSContext *c)
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{
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int http_base_proto = ff_is_http_proto(s->url);
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if (c->method) {
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av_dict_set(options, "method", c->method, 0);
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} else if (http_base_proto) {
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av_dict_set(options, "method", "PUT", 0);
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}
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if (c->user_agent)
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av_dict_set(options, "user_agent", c->user_agent, 0);
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if (c->http_persistent)
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av_dict_set_int(options, "multiple_requests", 1, 0);
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if (c->timeout >= 0)
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av_dict_set_int(options, "timeout", c->timeout, 0);
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if (c->headers)
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av_dict_set(options, "headers", c->headers, 0);
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}
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static void write_codec_attr(AVStream *st, VariantStream *vs)
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{
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int codec_strlen = strlen(vs->codec_attr);
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char attr[32];
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if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
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return;
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if (vs->attr_status == CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN)
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return;
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if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
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uint8_t *data = st->codecpar->extradata;
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if (data && (data[0] | data[1] | data[2]) == 0 && data[3] == 1 && (data[4] & 0x1F) == 7) {
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snprintf(attr, sizeof(attr),
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"avc1.%02x%02x%02x", data[5], data[6], data[7]);
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} else {
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goto fail;
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}
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} else if (st->codecpar->codec_id == AV_CODEC_ID_HEVC) {
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uint8_t *data = st->codecpar->extradata;
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int profile = FF_PROFILE_UNKNOWN;
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int level = FF_LEVEL_UNKNOWN;
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if (st->codecpar->profile != FF_PROFILE_UNKNOWN)
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profile = st->codecpar->profile;
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if (st->codecpar->level != FF_LEVEL_UNKNOWN)
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level = st->codecpar->level;
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/* check the boundary of data which from current position is small than extradata_size */
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while (data && (data - st->codecpar->extradata + 19) < st->codecpar->extradata_size) {
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/* get HEVC SPS NAL and seek to profile_tier_level */
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if (!(data[0] | data[1] | data[2]) && data[3] == 1 && ((data[4] & 0x7E) == 0x42)) {
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uint8_t *rbsp_buf;
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int remain_size = 0;
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int rbsp_size = 0;
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/* skip start code + nalu header */
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data += 6;
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/* process by reference General NAL unit syntax */
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remain_size = st->codecpar->extradata_size - (data - st->codecpar->extradata);
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rbsp_buf = ff_nal_unit_extract_rbsp(data, remain_size, &rbsp_size, 0);
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if (!rbsp_buf)
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return;
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if (rbsp_size < 13) {
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av_freep(&rbsp_buf);
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break;
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}
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/* skip sps_video_parameter_set_id u(4),
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* sps_max_sub_layers_minus1 u(3),
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* and sps_temporal_id_nesting_flag u(1) */
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profile = rbsp_buf[1] & 0x1f;
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/* skip 8 + 8 + 32 + 4 + 43 + 1 bit */
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level = rbsp_buf[12];
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av_freep(&rbsp_buf);
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break;
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}
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data++;
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}
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if (st->codecpar->codec_tag == MKTAG('h','v','c','1') &&
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profile != FF_PROFILE_UNKNOWN &&
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level != FF_LEVEL_UNKNOWN) {
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snprintf(attr, sizeof(attr), "%s.%d.4.L%d.B01", av_fourcc2str(st->codecpar->codec_tag), profile, level);
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} else
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goto fail;
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} else if (st->codecpar->codec_id == AV_CODEC_ID_MP2) {
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snprintf(attr, sizeof(attr), "mp4a.40.33");
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} else if (st->codecpar->codec_id == AV_CODEC_ID_MP3) {
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snprintf(attr, sizeof(attr), "mp4a.40.34");
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} else if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
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/* TODO : For HE-AAC, HE-AACv2, the last digit needs to be set to 5 and 29 respectively */
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snprintf(attr, sizeof(attr), "mp4a.40.2");
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} else if (st->codecpar->codec_id == AV_CODEC_ID_AC3) {
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snprintf(attr, sizeof(attr), "ac-3");
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} else if (st->codecpar->codec_id == AV_CODEC_ID_EAC3) {
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snprintf(attr, sizeof(attr), "ec-3");
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} else {
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goto fail;
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}
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// Don't write the same attribute multiple times
|
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if (!av_stristr(vs->codec_attr, attr)) {
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snprintf(vs->codec_attr + codec_strlen,
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sizeof(vs->codec_attr) - codec_strlen,
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"%s%s", codec_strlen ? "," : "", attr);
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}
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return;
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|
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fail:
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vs->codec_attr[0] = '\0';
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vs->attr_status = CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN;
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return;
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}
|
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|
|
static int replace_str_data_in_filename(char **s, const char *filename, char placeholder, const char *datastring)
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|
{
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|
const char *p;
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char c;
|
|
int addchar_count;
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int found_count = 0;
|
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AVBPrint buf;
|
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int ret;
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|
|
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av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
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|
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p = filename;
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for (;;) {
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c = *p;
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if (c == '\0')
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break;
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if (c == '%' && *(p+1) == '%') // %%
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addchar_count = 2;
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else if (c == '%' && *(p+1) == placeholder) {
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av_bprintf(&buf, "%s", datastring);
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p += 2;
|
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addchar_count = 0;
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found_count ++;
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} else
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addchar_count = 1;
|
|
|
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if (addchar_count > 0) {
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av_bprint_append_data(&buf, p, addchar_count);
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p += addchar_count;
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}
|
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}
|
|
if (!av_bprint_is_complete(&buf)) {
|
|
av_bprint_finalize(&buf, NULL);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
if ((ret = av_bprint_finalize(&buf, s)) < 0)
|
|
return ret;
|
|
return found_count;
|
|
}
|
|
|
|
static int replace_int_data_in_filename(char **s, const char *filename, char placeholder, int64_t number)
|
|
{
|
|
const char *p;
|
|
char c;
|
|
int nd, addchar_count;
|
|
int found_count = 0;
|
|
AVBPrint buf;
|
|
int ret;
|
|
|
|
av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
|
|
|
|
p = filename;
|
|
for (;;) {
|
|
c = *p;
|
|
if (c == '\0')
|
|
break;
|
|
if (c == '%' && *(p+1) == '%') // %%
|
|
addchar_count = 2;
|
|
else if (c == '%' && (av_isdigit(*(p+1)) || *(p+1) == placeholder)) {
|
|
nd = 0;
|
|
addchar_count = 1;
|
|
while (av_isdigit(*(p + addchar_count))) {
|
|
nd = nd * 10 + *(p + addchar_count) - '0';
|
|
addchar_count++;
|
|
}
|
|
|
|
if (*(p + addchar_count) == placeholder) {
|
|
av_bprintf(&buf, "%0*"PRId64, (number < 0) ? nd : nd++, number);
|
|
p += (addchar_count + 1);
|
|
addchar_count = 0;
|
|
found_count++;
|
|
}
|
|
|
|
} else
|
|
addchar_count = 1;
|
|
|
|
av_bprint_append_data(&buf, p, addchar_count);
|
|
p += addchar_count;
|
|
}
|
|
if (!av_bprint_is_complete(&buf)) {
|
|
av_bprint_finalize(&buf, NULL);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
if ((ret = av_bprint_finalize(&buf, s)) < 0)
|
|
return ret;
|
|
return found_count;
|
|
}
|
|
|
|
static void write_styp(AVIOContext *pb)
|
|
{
|
|
avio_wb32(pb, 24);
|
|
ffio_wfourcc(pb, "styp");
|
|
ffio_wfourcc(pb, "msdh");
|
|
avio_wb32(pb, 0); /* minor */
|
|
ffio_wfourcc(pb, "msdh");
|
|
ffio_wfourcc(pb, "msix");
|
|
}
|
|
|
|
static int flush_dynbuf(VariantStream *vs, int *range_length)
|
|
{
|
|
AVFormatContext *ctx = vs->avf;
|
|
|
|
if (!ctx->pb) {
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
// flush
|
|
av_write_frame(ctx, NULL);
|
|
|
|
// write out to file
|
|
*range_length = avio_close_dyn_buf(ctx->pb, &vs->temp_buffer);
|
|
ctx->pb = NULL;
|
|
avio_write(vs->out, vs->temp_buffer, *range_length);
|
|
avio_flush(vs->out);
|
|
|
|
// re-open buffer
|
|
return avio_open_dyn_buf(&ctx->pb);
|
|
}
|
|
|
|
static void reflush_dynbuf(VariantStream *vs, int *range_length)
|
|
{
|
|
// re-open buffer
|
|
avio_write(vs->out, vs->temp_buffer, *range_length);
|
|
}
|
|
|
|
#if HAVE_DOS_PATHS
|
|
#define SEPARATOR '\\'
|
|
#else
|
|
#define SEPARATOR '/'
|
|
#endif
|
|
|
|
static int hls_delete_file(HLSContext *hls, AVFormatContext *avf,
|
|
const char *path, const char *proto)
|
|
{
|
|
if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
|
|
AVDictionary *opt = NULL;
|
|
AVIOContext *out = NULL;
|
|
int ret;
|
|
av_dict_set(&opt, "method", "DELETE", 0);
|
|
ret = avf->io_open(avf, &out, path, AVIO_FLAG_WRITE, &opt);
|
|
av_dict_free(&opt);
|
|
if (ret < 0)
|
|
return hls->ignore_io_errors ? 1 : ret;
|
|
ff_format_io_close(avf, &out);
|
|
} else if (unlink(path) < 0) {
|
|
av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
|
|
path, strerror(errno));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int hls_delete_old_segments(AVFormatContext *s, HLSContext *hls,
|
|
VariantStream *vs)
|
|
{
|
|
|
|
HLSSegment *segment, *previous_segment = NULL;
|
|
float playlist_duration = 0.0f;
|
|
int ret = 0;
|
|
int segment_cnt = 0;
|
|
AVBPrint path;
|
|
const char *dirname = NULL;
|
|
char *dirname_r = NULL;
|
|
char *dirname_repl = NULL;
|
|
const char *vtt_dirname = NULL;
|
|
char *vtt_dirname_r = NULL;
|
|
const char *proto = NULL;
|
|
|
|
av_bprint_init(&path, 0, AV_BPRINT_SIZE_UNLIMITED);
|
|
|
|
segment = vs->segments;
|
|
while (segment) {
|
|
playlist_duration += segment->duration;
|
|
segment = segment->next;
|
|
}
|
|
|
|
segment = vs->old_segments;
|
|
segment_cnt = 0;
|
|
while (segment) {
|
|
playlist_duration -= segment->duration;
|
|
previous_segment = segment;
|
|
segment = previous_segment->next;
|
|
segment_cnt++;
|
|
if (playlist_duration <= -previous_segment->duration) {
|
|
previous_segment->next = NULL;
|
|
break;
|
|
}
|
|
if (segment_cnt >= hls->hls_delete_threshold) {
|
|
previous_segment->next = NULL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (segment && !hls->use_localtime_mkdir) {
|
|
dirname_r = hls->segment_filename ? av_strdup(hls->segment_filename): av_strdup(vs->avf->url);
|
|
dirname = av_dirname(dirname_r);
|
|
}
|
|
|
|
/* if %v is present in the file's directory
|
|
* all segment belongs to the same variant, so do it only once before the loop*/
|
|
if (dirname && av_stristr(dirname, "%v")) {
|
|
if (!vs->varname) {
|
|
if (replace_int_data_in_filename(&dirname_repl, dirname, 'v', segment->var_stream_idx) < 1) {
|
|
ret = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
} else {
|
|
if (replace_str_data_in_filename(&dirname_repl, dirname, 'v', vs->varname) < 1) {
|
|
ret = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
dirname = dirname_repl;
|
|
}
|
|
|
|
while (segment) {
|
|
av_log(hls, AV_LOG_DEBUG, "deleting old segment %s\n",
|
|
segment->filename);
|
|
if (!hls->use_localtime_mkdir) // segment->filename contains basename only
|
|
av_bprintf(&path, "%s%c", dirname, SEPARATOR);
|
|
av_bprintf(&path, "%s", segment->filename);
|
|
|
|
if (!av_bprint_is_complete(&path)) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
proto = avio_find_protocol_name(s->url);
|
|
if (ret = hls_delete_file(hls, vs->avf, path.str, proto))
|
|
goto fail;
|
|
|
|
if ((segment->sub_filename[0] != '\0')) {
|
|
vtt_dirname_r = av_strdup(vs->vtt_avf->url);
|
|
vtt_dirname = av_dirname(vtt_dirname_r);
|
|
|
|
av_bprint_clear(&path);
|
|
av_bprintf(&path, "%s%c%s", vtt_dirname, SEPARATOR,
|
|
segment->sub_filename);
|
|
av_freep(&vtt_dirname_r);
|
|
|
|
if (!av_bprint_is_complete(&path)) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
if (ret = hls_delete_file(hls, vs->vtt_avf, path.str, proto))
|
|
goto fail;
|
|
}
|
|
av_bprint_clear(&path);
|
|
previous_segment = segment;
|
|
segment = previous_segment->next;
|
|
av_freep(&previous_segment);
|
|
}
|
|
|
|
fail:
|
|
av_bprint_finalize(&path, NULL);
|
|
av_freep(&dirname_r);
|
|
av_freep(&dirname_repl);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int randomize(uint8_t *buf, int len)
|
|
{
|
|
#if CONFIG_GCRYPT
|
|
gcry_randomize(buf, len, GCRY_VERY_STRONG_RANDOM);
|
|
return 0;
|
|
#elif CONFIG_OPENSSL
|
|
if (RAND_bytes(buf, len))
|
|
return 0;
|
|
#else
|
|
return AVERROR(ENOSYS);
|
|
#endif
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
static int do_encrypt(AVFormatContext *s, VariantStream *vs)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
int ret;
|
|
int len;
|
|
AVIOContext *pb;
|
|
uint8_t key[KEYSIZE];
|
|
char * key_basename_source = (hls->master_m3u8_url) ? hls->master_m3u8_url : s->url;
|
|
|
|
len = strlen(key_basename_source) + 4 + 1;
|
|
hls->key_basename = av_mallocz(len);
|
|
if (!hls->key_basename)
|
|
return AVERROR(ENOMEM);
|
|
|
|
av_strlcpy(hls->key_basename, key_basename_source, len);
|
|
av_strlcat(hls->key_basename, ".key", len);
|
|
|
|
if (hls->key_url) {
|
|
av_strlcpy(hls->key_file, hls->key_url, sizeof(hls->key_file));
|
|
av_strlcpy(hls->key_uri, hls->key_url, sizeof(hls->key_uri));
|
|
} else {
|
|
av_strlcpy(hls->key_file, hls->key_basename, sizeof(hls->key_file));
|
|
av_strlcpy(hls->key_uri, hls->key_basename, sizeof(hls->key_uri));
|
|
}
|
|
|
|
if (!*hls->iv_string) {
|
|
uint8_t iv[16] = { 0 };
|
|
char buf[33];
|
|
|
|
if (!hls->iv) {
|
|
AV_WB64(iv + 8, vs->sequence);
|
|
} else {
|
|
memcpy(iv, hls->iv, sizeof(iv));
|
|
}
|
|
ff_data_to_hex(buf, iv, sizeof(iv), 0);
|
|
buf[32] = '\0';
|
|
memcpy(hls->iv_string, buf, sizeof(hls->iv_string));
|
|
}
|
|
|
|
if (!*hls->key_uri) {
|
|
av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (!*hls->key_file) {
|
|
av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (!*hls->key_string) {
|
|
AVDictionary *options = NULL;
|
|
if (!hls->key) {
|
|
if ((ret = randomize(key, sizeof(key))) < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Cannot generate a strong random key\n");
|
|
return ret;
|
|
}
|
|
} else {
|
|
memcpy(key, hls->key, sizeof(key));
|
|
}
|
|
|
|
ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
|
|
set_http_options(s, &options, hls);
|
|
ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_WRITE, &options);
|
|
av_dict_free(&options);
|
|
if (ret < 0)
|
|
return ret;
|
|
avio_seek(pb, 0, SEEK_CUR);
|
|
avio_write(pb, key, KEYSIZE);
|
|
avio_close(pb);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int hls_encryption_start(AVFormatContext *s, VariantStream *vs)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
int ret;
|
|
AVIOContext *pb;
|
|
uint8_t key[KEYSIZE];
|
|
AVDictionary *options = NULL;
|
|
|
|
set_http_options(s, &options, hls);
|
|
ret = s->io_open(s, &pb, hls->key_info_file, AVIO_FLAG_READ, &options);
|
|
av_dict_free(&options);
|
|
if (ret < 0) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"error opening key info file %s\n", hls->key_info_file);
|
|
return ret;
|
|
}
|
|
|
|
ff_get_line(pb, vs->key_uri, sizeof(vs->key_uri));
|
|
vs->key_uri[strcspn(vs->key_uri, "\r\n")] = '\0';
|
|
|
|
ff_get_line(pb, vs->key_file, sizeof(vs->key_file));
|
|
vs->key_file[strcspn(vs->key_file, "\r\n")] = '\0';
|
|
|
|
ff_get_line(pb, vs->iv_string, sizeof(vs->iv_string));
|
|
vs->iv_string[strcspn(vs->iv_string, "\r\n")] = '\0';
|
|
|
|
ff_format_io_close(s, &pb);
|
|
|
|
if (!*vs->key_uri) {
|
|
av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (!*vs->key_file) {
|
|
av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
set_http_options(s, &options, hls);
|
|
ret = s->io_open(s, &pb, vs->key_file, AVIO_FLAG_READ, &options);
|
|
av_dict_free(&options);
|
|
if (ret < 0) {
|
|
av_log(hls, AV_LOG_ERROR, "error opening key file %s\n", vs->key_file);
|
|
return ret;
|
|
}
|
|
|
|
ret = avio_read(pb, key, sizeof(key));
|
|
ff_format_io_close(s, &pb);
|
|
if (ret != sizeof(key)) {
|
|
av_log(hls, AV_LOG_ERROR, "error reading key file %s\n", vs->key_file);
|
|
if (ret >= 0 || ret == AVERROR_EOF)
|
|
ret = AVERROR(EINVAL);
|
|
return ret;
|
|
}
|
|
ff_data_to_hex(vs->key_string, key, sizeof(key), 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hls_mux_init(AVFormatContext *s, VariantStream *vs)
|
|
{
|
|
AVDictionary *options = NULL;
|
|
HLSContext *hls = s->priv_data;
|
|
AVFormatContext *oc;
|
|
AVFormatContext *vtt_oc = NULL;
|
|
int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
|
|
int remaining_options;
|
|
int i, ret;
|
|
|
|
ret = avformat_alloc_output_context2(&vs->avf, vs->oformat, NULL, NULL);
|
|
if (ret < 0)
|
|
return ret;
|
|
oc = vs->avf;
|
|
|
|
oc->url = av_strdup("");
|
|
if (!oc->url)
|
|
return AVERROR(ENOMEM);
|
|
|
|
oc->interrupt_callback = s->interrupt_callback;
|
|
oc->max_delay = s->max_delay;
|
|
oc->opaque = s->opaque;
|
|
oc->io_open = s->io_open;
|
|
oc->io_close = s->io_close;
|
|
oc->strict_std_compliance = s->strict_std_compliance;
|
|
av_dict_copy(&oc->metadata, s->metadata, 0);
|
|
|
|
if (vs->vtt_oformat) {
|
|
ret = avformat_alloc_output_context2(&vs->vtt_avf, vs->vtt_oformat, NULL, NULL);
|
|
if (ret < 0)
|
|
return ret;
|
|
vtt_oc = vs->vtt_avf;
|
|
av_dict_copy(&vtt_oc->metadata, s->metadata, 0);
|
|
}
|
|
|
|
for (i = 0; i < vs->nb_streams; i++) {
|
|
AVStream *st;
|
|
AVFormatContext *loc;
|
|
if (vs->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
|
|
loc = vtt_oc;
|
|
else
|
|
loc = oc;
|
|
|
|
if (!(st = avformat_new_stream(loc, NULL)))
|
|
return AVERROR(ENOMEM);
|
|
avcodec_parameters_copy(st->codecpar, vs->streams[i]->codecpar);
|
|
if (!oc->oformat->codec_tag ||
|
|
av_codec_get_id (oc->oformat->codec_tag, vs->streams[i]->codecpar->codec_tag) == st->codecpar->codec_id ||
|
|
av_codec_get_tag(oc->oformat->codec_tag, vs->streams[i]->codecpar->codec_id) <= 0) {
|
|
st->codecpar->codec_tag = vs->streams[i]->codecpar->codec_tag;
|
|
} else {
|
|
st->codecpar->codec_tag = 0;
|
|
}
|
|
|
|
st->sample_aspect_ratio = vs->streams[i]->sample_aspect_ratio;
|
|
st->time_base = vs->streams[i]->time_base;
|
|
av_dict_copy(&st->metadata, vs->streams[i]->metadata, 0);
|
|
}
|
|
|
|
vs->start_pos = 0;
|
|
vs->new_start = 1;
|
|
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4 && hls->max_seg_size > 0) {
|
|
if (hls->http_persistent > 0) {
|
|
//TODO: Support fragment fmp4 for http persistent in HLS muxer.
|
|
av_log(s, AV_LOG_WARNING, "http persistent mode is currently unsupported for fragment mp4 in the HLS muxer.\n");
|
|
}
|
|
if (hls->max_seg_size > 0) {
|
|
av_log(s, AV_LOG_WARNING, "Multi-file byterange mode is currently unsupported in the HLS muxer.\n");
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
}
|
|
|
|
if ((ret = avio_open_dyn_buf(&oc->pb)) < 0)
|
|
return ret;
|
|
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
set_http_options(s, &options, hls);
|
|
if (byterange_mode) {
|
|
ret = hlsenc_io_open(s, &vs->out, vs->basename, &options);
|
|
} else {
|
|
ret = hlsenc_io_open(s, &vs->out, vs->base_output_dirname, &options);
|
|
}
|
|
av_dict_free(&options);
|
|
}
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Failed to open segment '%s'\n", vs->fmp4_init_filename);
|
|
return ret;
|
|
}
|
|
|
|
av_dict_copy(&options, hls->format_options, 0);
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
av_dict_set(&options, "fflags", "-autobsf", 0);
|
|
av_dict_set(&options, "movflags", "+frag_custom+dash+delay_moov", AV_DICT_APPEND);
|
|
} else {
|
|
/* We only require one PAT/PMT per segment. */
|
|
char period[21];
|
|
snprintf(period, sizeof(period), "%d", (INT_MAX / 2) - 1);
|
|
av_dict_set(&options, "sdt_period", period, AV_DICT_DONT_OVERWRITE);
|
|
av_dict_set(&options, "pat_period", period, AV_DICT_DONT_OVERWRITE);
|
|
}
|
|
ret = avformat_init_output(oc, &options);
|
|
remaining_options = av_dict_count(options);
|
|
av_dict_free(&options);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (remaining_options) {
|
|
av_log(s, AV_LOG_ERROR, "Some of the provided format options are not recognized\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
avio_flush(oc->pb);
|
|
return 0;
|
|
}
|
|
|
|
static HLSSegment *find_segment_by_filename(HLSSegment *segment, const char *filename)
|
|
{
|
|
while (segment) {
|
|
if (!av_strcasecmp(segment->filename,filename))
|
|
return segment;
|
|
segment = segment->next;
|
|
}
|
|
return (HLSSegment *) NULL;
|
|
}
|
|
|
|
static int sls_flags_filename_process(struct AVFormatContext *s, HLSContext *hls,
|
|
VariantStream *vs, HLSSegment *en,
|
|
double duration, int64_t pos, int64_t size)
|
|
{
|
|
if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
|
|
strlen(vs->current_segment_final_filename_fmt)) {
|
|
char * new_url = av_strdup(vs->current_segment_final_filename_fmt);
|
|
if (!new_url) {
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
ff_format_set_url(vs->avf, new_url);
|
|
if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
|
|
char *filename = NULL;
|
|
if (replace_int_data_in_filename(&filename, vs->avf->url, 's', pos + size) < 1) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"Invalid second level segment filename template '%s', "
|
|
"you can try to remove second_level_segment_size flag\n",
|
|
vs->avf->url);
|
|
av_freep(&filename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
ff_format_set_url(vs->avf, filename);
|
|
}
|
|
if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
|
|
char *filename = NULL;
|
|
if (replace_int_data_in_filename(&filename, vs->avf->url,
|
|
't', (int64_t)round(duration * HLS_MICROSECOND_UNIT)) < 1) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"Invalid second level segment filename template '%s', "
|
|
"you can try to remove second_level_segment_time flag\n",
|
|
vs->avf->url);
|
|
av_freep(&filename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
ff_format_set_url(vs->avf, filename);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int sls_flag_check_duration_size_index(HLSContext *hls)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"second_level_segment_duration hls_flag requires strftime to be true\n");
|
|
ret = AVERROR(EINVAL);
|
|
}
|
|
if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"second_level_segment_size hls_flag requires strfime to be true\n");
|
|
ret = AVERROR(EINVAL);
|
|
}
|
|
if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"second_level_segment_index hls_flag requires strftime to be true\n");
|
|
ret = AVERROR(EINVAL);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int sls_flag_check_duration_size(HLSContext *hls, VariantStream *vs)
|
|
{
|
|
const char *proto = avio_find_protocol_name(vs->basename);
|
|
int segment_renaming_ok = proto && !strcmp(proto, "file");
|
|
int ret = 0;
|
|
|
|
if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) && !segment_renaming_ok) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"second_level_segment_duration hls_flag works only with file protocol segment names\n");
|
|
ret = AVERROR(EINVAL);
|
|
}
|
|
if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) && !segment_renaming_ok) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"second_level_segment_size hls_flag works only with file protocol segment names\n");
|
|
ret = AVERROR(EINVAL);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void sls_flag_file_rename(HLSContext *hls, VariantStream *vs, char *old_filename) {
|
|
if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
|
|
strlen(vs->current_segment_final_filename_fmt)) {
|
|
ff_rename(old_filename, vs->avf->url, hls);
|
|
}
|
|
}
|
|
|
|
static int sls_flag_use_localtime_filename(AVFormatContext *oc, HLSContext *c, VariantStream *vs)
|
|
{
|
|
if (c->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) {
|
|
char *filename = NULL;
|
|
if (replace_int_data_in_filename(&filename,
|
|
oc->url, 'd', vs->sequence) < 1) {
|
|
av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
|
|
"you can try to remove second_level_segment_index flag\n",
|
|
oc->url);
|
|
av_freep(&filename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
ff_format_set_url(oc, filename);
|
|
}
|
|
if (c->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) {
|
|
av_strlcpy(vs->current_segment_final_filename_fmt, oc->url,
|
|
sizeof(vs->current_segment_final_filename_fmt));
|
|
if (c->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
|
|
char *filename = NULL;
|
|
if (replace_int_data_in_filename(&filename, oc->url, 's', 0) < 1) {
|
|
av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
|
|
"you can try to remove second_level_segment_size flag\n",
|
|
oc->url);
|
|
av_freep(&filename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
ff_format_set_url(oc, filename);
|
|
}
|
|
if (c->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
|
|
char *filename = NULL;
|
|
if (replace_int_data_in_filename(&filename, oc->url, 't', 0) < 1) {
|
|
av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
|
|
"you can try to remove second_level_segment_time flag\n",
|
|
oc->url);
|
|
av_freep(&filename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
ff_format_set_url(oc, filename);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Create a new segment and append it to the segment list */
|
|
static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls,
|
|
VariantStream *vs, double duration, int64_t pos,
|
|
int64_t size)
|
|
{
|
|
HLSSegment *en = av_malloc(sizeof(*en));
|
|
const char *filename;
|
|
int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
|
|
int ret;
|
|
|
|
if (!en)
|
|
return AVERROR(ENOMEM);
|
|
|
|
en->var_stream_idx = vs->var_stream_idx;
|
|
ret = sls_flags_filename_process(s, hls, vs, en, duration, pos, size);
|
|
if (ret < 0) {
|
|
av_freep(&en);
|
|
return ret;
|
|
}
|
|
|
|
filename = av_basename(vs->avf->url);
|
|
|
|
if (hls->use_localtime_mkdir) {
|
|
filename = vs->avf->url;
|
|
}
|
|
if ((find_segment_by_filename(vs->segments, filename) || find_segment_by_filename(vs->old_segments, filename))
|
|
&& !byterange_mode) {
|
|
av_log(hls, AV_LOG_WARNING, "Duplicated segment filename detected: %s\n", filename);
|
|
}
|
|
av_strlcpy(en->filename, filename, sizeof(en->filename));
|
|
|
|
if (vs->has_subtitle)
|
|
av_strlcpy(en->sub_filename, av_basename(vs->vtt_avf->url), sizeof(en->sub_filename));
|
|
else
|
|
en->sub_filename[0] = '\0';
|
|
|
|
en->duration = duration;
|
|
en->pos = pos;
|
|
en->size = size;
|
|
en->keyframe_pos = vs->video_keyframe_pos;
|
|
en->keyframe_size = vs->video_keyframe_size;
|
|
en->next = NULL;
|
|
en->discont = 0;
|
|
en->discont_program_date_time = 0;
|
|
|
|
if (vs->discontinuity) {
|
|
en->discont = 1;
|
|
vs->discontinuity = 0;
|
|
}
|
|
|
|
if (hls->key_info_file || hls->encrypt) {
|
|
av_strlcpy(en->key_uri, vs->key_uri, sizeof(en->key_uri));
|
|
av_strlcpy(en->iv_string, vs->iv_string, sizeof(en->iv_string));
|
|
}
|
|
|
|
if (!vs->segments)
|
|
vs->segments = en;
|
|
else
|
|
vs->last_segment->next = en;
|
|
|
|
vs->last_segment = en;
|
|
|
|
// EVENT or VOD playlists imply sliding window cannot be used
|
|
if (hls->pl_type != PLAYLIST_TYPE_NONE)
|
|
hls->max_nb_segments = 0;
|
|
|
|
if (hls->max_nb_segments && vs->nb_entries >= hls->max_nb_segments) {
|
|
en = vs->segments;
|
|
if (!en->next->discont_program_date_time && !en->discont_program_date_time)
|
|
vs->initial_prog_date_time += en->duration;
|
|
vs->segments = en->next;
|
|
if (en && hls->flags & HLS_DELETE_SEGMENTS &&
|
|
!(hls->flags & HLS_SINGLE_FILE)) {
|
|
en->next = vs->old_segments;
|
|
vs->old_segments = en;
|
|
if ((ret = hls_delete_old_segments(s, hls, vs)) < 0)
|
|
return ret;
|
|
} else
|
|
av_freep(&en);
|
|
} else
|
|
vs->nb_entries++;
|
|
|
|
if (hls->max_seg_size > 0) {
|
|
return 0;
|
|
}
|
|
vs->sequence++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int parse_playlist(AVFormatContext *s, const char *url, VariantStream *vs)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
AVIOContext *in;
|
|
int ret = 0, is_segment = 0;
|
|
int64_t new_start_pos;
|
|
char line[MAX_URL_SIZE];
|
|
const char *ptr;
|
|
const char *end;
|
|
double discont_program_date_time = 0;
|
|
|
|
if ((ret = ffio_open_whitelist(&in, url, AVIO_FLAG_READ,
|
|
&s->interrupt_callback, NULL,
|
|
s->protocol_whitelist, s->protocol_blacklist)) < 0)
|
|
return ret;
|
|
|
|
ff_get_chomp_line(in, line, sizeof(line));
|
|
if (strcmp(line, "#EXTM3U")) {
|
|
ret = AVERROR_INVALIDDATA;
|
|
goto fail;
|
|
}
|
|
|
|
vs->discontinuity = 0;
|
|
while (!avio_feof(in)) {
|
|
ff_get_chomp_line(in, line, sizeof(line));
|
|
if (av_strstart(line, "#EXT-X-MEDIA-SEQUENCE:", &ptr)) {
|
|
int64_t tmp_sequence = strtoll(ptr, NULL, 10);
|
|
if (tmp_sequence < vs->sequence)
|
|
av_log(hls, AV_LOG_VERBOSE,
|
|
"Found playlist sequence number was smaller """
|
|
"than specified start sequence number: %"PRId64" < %"PRId64", "
|
|
"omitting\n", tmp_sequence, hls->start_sequence);
|
|
else {
|
|
av_log(hls, AV_LOG_DEBUG, "Found playlist sequence number: %"PRId64"\n", tmp_sequence);
|
|
vs->sequence = tmp_sequence;
|
|
}
|
|
} else if (av_strstart(line, "#EXT-X-DISCONTINUITY", &ptr)) {
|
|
is_segment = 1;
|
|
vs->discontinuity = 1;
|
|
} else if (av_strstart(line, "#EXTINF:", &ptr)) {
|
|
is_segment = 1;
|
|
vs->duration = atof(ptr);
|
|
} else if (av_stristart(line, "#EXT-X-KEY:", &ptr)) {
|
|
ptr = av_stristr(line, "URI=\"");
|
|
if (ptr) {
|
|
ptr += strlen("URI=\"");
|
|
end = av_stristr(ptr, ",");
|
|
if (end) {
|
|
av_strlcpy(vs->key_uri, ptr, end - ptr);
|
|
} else {
|
|
av_strlcpy(vs->key_uri, ptr, sizeof(vs->key_uri));
|
|
}
|
|
}
|
|
|
|
ptr = av_stristr(line, "IV=0x");
|
|
if (ptr) {
|
|
ptr += strlen("IV=0x");
|
|
end = av_stristr(ptr, ",");
|
|
if (end) {
|
|
av_strlcpy(vs->iv_string, ptr, end - ptr);
|
|
} else {
|
|
av_strlcpy(vs->iv_string, ptr, sizeof(vs->iv_string));
|
|
}
|
|
}
|
|
} else if (av_strstart(line, "#EXT-X-PROGRAM-DATE-TIME:", &ptr)) {
|
|
struct tm program_date_time;
|
|
int y,M,d,h,m,s;
|
|
double ms;
|
|
if (sscanf(ptr, "%d-%d-%dT%d:%d:%d.%lf", &y, &M, &d, &h, &m, &s, &ms) != 7) {
|
|
ret = AVERROR_INVALIDDATA;
|
|
goto fail;
|
|
}
|
|
|
|
program_date_time.tm_year = y - 1900;
|
|
program_date_time.tm_mon = M - 1;
|
|
program_date_time.tm_mday = d;
|
|
program_date_time.tm_hour = h;
|
|
program_date_time.tm_min = m;
|
|
program_date_time.tm_sec = s;
|
|
program_date_time.tm_isdst = -1;
|
|
|
|
discont_program_date_time = mktime(&program_date_time);
|
|
discont_program_date_time += (double)(ms / 1000);
|
|
} else if (av_strstart(line, "#", NULL)) {
|
|
continue;
|
|
} else if (line[0]) {
|
|
if (is_segment) {
|
|
char *new_file = av_strdup(line);
|
|
if (!new_file) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
ff_format_set_url(vs->avf, new_file);
|
|
is_segment = 0;
|
|
new_start_pos = avio_tell(vs->avf->pb);
|
|
vs->size = new_start_pos - vs->start_pos;
|
|
ret = hls_append_segment(s, hls, vs, vs->duration, vs->start_pos, vs->size);
|
|
vs->last_segment->discont_program_date_time = discont_program_date_time;
|
|
discont_program_date_time += vs->duration;
|
|
if (ret < 0)
|
|
goto fail;
|
|
vs->start_pos = new_start_pos;
|
|
}
|
|
}
|
|
}
|
|
|
|
fail:
|
|
avio_close(in);
|
|
return ret;
|
|
}
|
|
|
|
static void hls_free_segments(HLSSegment *p)
|
|
{
|
|
HLSSegment *en;
|
|
|
|
while (p) {
|
|
en = p;
|
|
p = p->next;
|
|
av_freep(&en);
|
|
}
|
|
}
|
|
|
|
static int hls_rename_temp_file(AVFormatContext *s, AVFormatContext *oc)
|
|
{
|
|
size_t len = strlen(oc->url);
|
|
char *final_filename = av_strdup(oc->url);
|
|
int ret;
|
|
|
|
if (!final_filename)
|
|
return AVERROR(ENOMEM);
|
|
final_filename[len-4] = '\0';
|
|
ret = ff_rename(oc->url, final_filename, s);
|
|
oc->url[len-4] = '\0';
|
|
av_freep(&final_filename);
|
|
return ret;
|
|
}
|
|
|
|
static const char* get_relative_url(const char *master_url, const char *media_url)
|
|
{
|
|
const char *p = strrchr(master_url, '/');
|
|
size_t base_len = 0;
|
|
|
|
if (!p) p = strrchr(master_url, '\\');
|
|
|
|
if (p) {
|
|
base_len = p - master_url;
|
|
if (av_strncasecmp(master_url, media_url, base_len)) {
|
|
av_log(NULL, AV_LOG_WARNING, "Unable to find relative url\n");
|
|
return NULL;
|
|
}
|
|
} else {
|
|
return media_url;
|
|
}
|
|
|
|
return media_url + base_len + 1;
|
|
}
|
|
|
|
static int64_t get_stream_bit_rate(AVStream *stream)
|
|
{
|
|
AVCPBProperties *props = (AVCPBProperties*)av_stream_get_side_data(
|
|
stream,
|
|
AV_PKT_DATA_CPB_PROPERTIES,
|
|
NULL
|
|
);
|
|
|
|
if (stream->codecpar->bit_rate)
|
|
return stream->codecpar->bit_rate;
|
|
else if (props)
|
|
return props->max_bitrate;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int create_master_playlist(AVFormatContext *s,
|
|
VariantStream * const input_vs)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
VariantStream *vs, *temp_vs;
|
|
AVStream *vid_st, *aud_st;
|
|
AVDictionary *options = NULL;
|
|
unsigned int i, j;
|
|
int ret, bandwidth;
|
|
const char *m3u8_rel_name = NULL;
|
|
const char *vtt_m3u8_rel_name = NULL;
|
|
const char *ccgroup;
|
|
const char *sgroup = NULL;
|
|
ClosedCaptionsStream *ccs;
|
|
const char *proto = avio_find_protocol_name(hls->master_m3u8_url);
|
|
int is_file_proto = proto && !strcmp(proto, "file");
|
|
int use_temp_file = is_file_proto && ((hls->flags & HLS_TEMP_FILE) || hls->master_publish_rate);
|
|
char temp_filename[MAX_URL_SIZE];
|
|
|
|
input_vs->m3u8_created = 1;
|
|
if (!hls->master_m3u8_created) {
|
|
/* For the first time, wait until all the media playlists are created */
|
|
for (i = 0; i < hls->nb_varstreams; i++)
|
|
if (!hls->var_streams[i].m3u8_created)
|
|
return 0;
|
|
} else {
|
|
/* Keep publishing the master playlist at the configured rate */
|
|
if (&hls->var_streams[0] != input_vs || !hls->master_publish_rate ||
|
|
input_vs->number % hls->master_publish_rate)
|
|
return 0;
|
|
}
|
|
|
|
set_http_options(s, &options, hls);
|
|
snprintf(temp_filename, sizeof(temp_filename), use_temp_file ? "%s.tmp" : "%s", hls->master_m3u8_url);
|
|
ret = hlsenc_io_open(s, &hls->m3u8_out, temp_filename, &options);
|
|
av_dict_free(&options);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Failed to open master play list file '%s'\n",
|
|
temp_filename);
|
|
goto fail;
|
|
}
|
|
|
|
ff_hls_write_playlist_version(hls->m3u8_out, hls->version);
|
|
|
|
for (i = 0; i < hls->nb_ccstreams; i++) {
|
|
ccs = &(hls->cc_streams[i]);
|
|
avio_printf(hls->m3u8_out, "#EXT-X-MEDIA:TYPE=CLOSED-CAPTIONS");
|
|
avio_printf(hls->m3u8_out, ",GROUP-ID=\"%s\"", ccs->ccgroup);
|
|
avio_printf(hls->m3u8_out, ",NAME=\"%s\"", ccs->instreamid);
|
|
if (ccs->language)
|
|
avio_printf(hls->m3u8_out, ",LANGUAGE=\"%s\"", ccs->language);
|
|
avio_printf(hls->m3u8_out, ",INSTREAM-ID=\"%s\"\n", ccs->instreamid);
|
|
}
|
|
|
|
/* For audio only variant streams add #EXT-X-MEDIA tag with attributes*/
|
|
for (i = 0; i < hls->nb_varstreams; i++) {
|
|
vs = &(hls->var_streams[i]);
|
|
|
|
if (vs->has_video || vs->has_subtitle || !vs->agroup)
|
|
continue;
|
|
|
|
m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->m3u8_name);
|
|
if (!m3u8_rel_name) {
|
|
av_log(s, AV_LOG_ERROR, "Unable to find relative URL\n");
|
|
goto fail;
|
|
}
|
|
|
|
ff_hls_write_audio_rendition(hls->m3u8_out, vs->agroup, m3u8_rel_name, vs->language, i, hls->has_default_key ? vs->is_default : 1);
|
|
}
|
|
|
|
/* For variant streams with video add #EXT-X-STREAM-INF tag with attributes*/
|
|
for (i = 0; i < hls->nb_varstreams; i++) {
|
|
vs = &(hls->var_streams[i]);
|
|
|
|
m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->m3u8_name);
|
|
if (!m3u8_rel_name) {
|
|
av_log(s, AV_LOG_ERROR, "Unable to find relative URL\n");
|
|
goto fail;
|
|
}
|
|
|
|
vid_st = NULL;
|
|
aud_st = NULL;
|
|
for (j = 0; j < vs->nb_streams; j++) {
|
|
if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
|
|
vid_st = vs->streams[j];
|
|
else if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
|
|
aud_st = vs->streams[j];
|
|
}
|
|
|
|
if (!vid_st && !aud_st) {
|
|
av_log(s, AV_LOG_WARNING, "Media stream not found\n");
|
|
continue;
|
|
}
|
|
|
|
/**
|
|
* Traverse through the list of audio only rendition streams and find
|
|
* the rendition which has highest bitrate in the same audio group
|
|
*/
|
|
if (vs->agroup) {
|
|
for (j = 0; j < hls->nb_varstreams; j++) {
|
|
temp_vs = &(hls->var_streams[j]);
|
|
if (!temp_vs->has_video && !temp_vs->has_subtitle &&
|
|
temp_vs->agroup &&
|
|
!av_strcasecmp(temp_vs->agroup, vs->agroup)) {
|
|
if (!aud_st)
|
|
aud_st = temp_vs->streams[0];
|
|
if (temp_vs->streams[0]->codecpar->bit_rate >
|
|
aud_st->codecpar->bit_rate)
|
|
aud_st = temp_vs->streams[0];
|
|
}
|
|
}
|
|
}
|
|
|
|
bandwidth = 0;
|
|
if (vid_st)
|
|
bandwidth += get_stream_bit_rate(vid_st);
|
|
if (aud_st)
|
|
bandwidth += get_stream_bit_rate(aud_st);
|
|
bandwidth += bandwidth / 10;
|
|
|
|
ccgroup = NULL;
|
|
if (vid_st && vs->ccgroup) {
|
|
/* check if this group name is available in the cc map string */
|
|
for (j = 0; j < hls->nb_ccstreams; j++) {
|
|
ccs = &(hls->cc_streams[j]);
|
|
if (!av_strcasecmp(ccs->ccgroup, vs->ccgroup)) {
|
|
ccgroup = vs->ccgroup;
|
|
break;
|
|
}
|
|
}
|
|
if (j == hls->nb_ccstreams)
|
|
av_log(s, AV_LOG_WARNING, "mapping ccgroup %s not found\n",
|
|
vs->ccgroup);
|
|
}
|
|
|
|
if (vid_st && vs->sgroup) {
|
|
sgroup = vs->sgroup;
|
|
vtt_m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->vtt_m3u8_name);
|
|
if (!vtt_m3u8_rel_name) {
|
|
av_log(s, AV_LOG_WARNING, "Unable to find relative subtitle URL\n");
|
|
break;
|
|
}
|
|
|
|
ff_hls_write_subtitle_rendition(hls->m3u8_out, sgroup, vtt_m3u8_rel_name, vs->language, i, hls->has_default_key ? vs->is_default : 1);
|
|
}
|
|
|
|
if (!hls->has_default_key || !hls->has_video_m3u8) {
|
|
ff_hls_write_stream_info(vid_st, hls->m3u8_out, bandwidth, m3u8_rel_name,
|
|
aud_st ? vs->agroup : NULL, vs->codec_attr, ccgroup, sgroup);
|
|
} else {
|
|
if (vid_st) {
|
|
ff_hls_write_stream_info(vid_st, hls->m3u8_out, bandwidth, m3u8_rel_name,
|
|
aud_st ? vs->agroup : NULL, vs->codec_attr, ccgroup, sgroup);
|
|
}
|
|
}
|
|
}
|
|
fail:
|
|
if (ret >=0)
|
|
hls->master_m3u8_created = 1;
|
|
hlsenc_io_close(s, &hls->m3u8_out, temp_filename);
|
|
if (use_temp_file)
|
|
ff_rename(temp_filename, hls->master_m3u8_url, s);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int hls_window(AVFormatContext *s, int last, VariantStream *vs)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
HLSSegment *en;
|
|
int target_duration = 0;
|
|
int ret = 0;
|
|
char temp_filename[MAX_URL_SIZE];
|
|
char temp_vtt_filename[MAX_URL_SIZE];
|
|
int64_t sequence = FFMAX(hls->start_sequence, vs->sequence - vs->nb_entries);
|
|
const char *proto = avio_find_protocol_name(vs->m3u8_name);
|
|
int is_file_proto = proto && !strcmp(proto, "file");
|
|
int use_temp_file = is_file_proto && ((hls->flags & HLS_TEMP_FILE) || !(hls->pl_type == PLAYLIST_TYPE_VOD));
|
|
static unsigned warned_non_file;
|
|
char *key_uri = NULL;
|
|
char *iv_string = NULL;
|
|
AVDictionary *options = NULL;
|
|
double prog_date_time = vs->initial_prog_date_time;
|
|
double *prog_date_time_p = (hls->flags & HLS_PROGRAM_DATE_TIME) ? &prog_date_time : NULL;
|
|
int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
|
|
|
|
hls->version = 3;
|
|
if (byterange_mode) {
|
|
hls->version = 4;
|
|
sequence = 0;
|
|
}
|
|
|
|
if (hls->flags & HLS_I_FRAMES_ONLY) {
|
|
hls->version = 4;
|
|
}
|
|
|
|
if (hls->flags & HLS_INDEPENDENT_SEGMENTS) {
|
|
hls->version = 6;
|
|
}
|
|
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
hls->version = 7;
|
|
}
|
|
|
|
if (!is_file_proto && (hls->flags & HLS_TEMP_FILE) && !warned_non_file++)
|
|
av_log(s, AV_LOG_ERROR, "Cannot use rename on non file protocol, this may lead to races and temporary partial files\n");
|
|
|
|
set_http_options(s, &options, hls);
|
|
snprintf(temp_filename, sizeof(temp_filename), use_temp_file ? "%s.tmp" : "%s", vs->m3u8_name);
|
|
if ((ret = hlsenc_io_open(s, byterange_mode ? &hls->m3u8_out : &vs->out, temp_filename, &options)) < 0) {
|
|
if (hls->ignore_io_errors)
|
|
ret = 0;
|
|
goto fail;
|
|
}
|
|
|
|
for (en = vs->segments; en; en = en->next) {
|
|
if (target_duration <= en->duration)
|
|
target_duration = lrint(en->duration);
|
|
}
|
|
|
|
vs->discontinuity_set = 0;
|
|
ff_hls_write_playlist_header(byterange_mode ? hls->m3u8_out : vs->out, hls->version, hls->allowcache,
|
|
target_duration, sequence, hls->pl_type, hls->flags & HLS_I_FRAMES_ONLY);
|
|
|
|
if ((hls->flags & HLS_DISCONT_START) && sequence==hls->start_sequence && vs->discontinuity_set==0) {
|
|
avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-DISCONTINUITY\n");
|
|
vs->discontinuity_set = 1;
|
|
}
|
|
if (vs->has_video && (hls->flags & HLS_INDEPENDENT_SEGMENTS)) {
|
|
avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-INDEPENDENT-SEGMENTS\n");
|
|
}
|
|
for (en = vs->segments; en; en = en->next) {
|
|
if ((hls->encrypt || hls->key_info_file) && (!key_uri || strcmp(en->key_uri, key_uri) ||
|
|
av_strcasecmp(en->iv_string, iv_string))) {
|
|
avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-KEY:METHOD=AES-128,URI=\"%s\"", en->key_uri);
|
|
if (*en->iv_string)
|
|
avio_printf(byterange_mode ? hls->m3u8_out : vs->out, ",IV=0x%s", en->iv_string);
|
|
avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "\n");
|
|
key_uri = en->key_uri;
|
|
iv_string = en->iv_string;
|
|
}
|
|
|
|
if ((hls->segment_type == SEGMENT_TYPE_FMP4) && (en == vs->segments)) {
|
|
ff_hls_write_init_file(byterange_mode ? hls->m3u8_out : vs->out, (hls->flags & HLS_SINGLE_FILE) ? en->filename : vs->fmp4_init_filename,
|
|
hls->flags & HLS_SINGLE_FILE, vs->init_range_length, 0);
|
|
}
|
|
|
|
ret = ff_hls_write_file_entry(byterange_mode ? hls->m3u8_out : vs->out, en->discont, byterange_mode,
|
|
en->duration, hls->flags & HLS_ROUND_DURATIONS,
|
|
en->size, en->pos, hls->baseurl,
|
|
en->filename,
|
|
en->discont_program_date_time ? &en->discont_program_date_time : prog_date_time_p,
|
|
en->keyframe_size, en->keyframe_pos, hls->flags & HLS_I_FRAMES_ONLY);
|
|
if (en->discont_program_date_time)
|
|
en->discont_program_date_time -= en->duration;
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
|
|
}
|
|
}
|
|
|
|
if (last && (hls->flags & HLS_OMIT_ENDLIST)==0)
|
|
ff_hls_write_end_list(byterange_mode ? hls->m3u8_out : vs->out);
|
|
|
|
if (vs->vtt_m3u8_name) {
|
|
snprintf(temp_vtt_filename, sizeof(temp_vtt_filename), use_temp_file ? "%s.tmp" : "%s", vs->vtt_m3u8_name);
|
|
if ((ret = hlsenc_io_open(s, &hls->sub_m3u8_out, temp_vtt_filename, &options)) < 0) {
|
|
if (hls->ignore_io_errors)
|
|
ret = 0;
|
|
goto fail;
|
|
}
|
|
ff_hls_write_playlist_header(hls->sub_m3u8_out, hls->version, hls->allowcache,
|
|
target_duration, sequence, PLAYLIST_TYPE_NONE, 0);
|
|
for (en = vs->segments; en; en = en->next) {
|
|
ret = ff_hls_write_file_entry(hls->sub_m3u8_out, 0, byterange_mode,
|
|
en->duration, 0, en->size, en->pos,
|
|
hls->baseurl, en->sub_filename, NULL, 0, 0, 0);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
|
|
}
|
|
}
|
|
|
|
if (last)
|
|
ff_hls_write_end_list(hls->sub_m3u8_out);
|
|
|
|
}
|
|
|
|
fail:
|
|
av_dict_free(&options);
|
|
ret = hlsenc_io_close(s, byterange_mode ? &hls->m3u8_out : &vs->out, temp_filename);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
hlsenc_io_close(s, &hls->sub_m3u8_out, vs->vtt_m3u8_name);
|
|
if (use_temp_file) {
|
|
ff_rename(temp_filename, vs->m3u8_name, s);
|
|
if (vs->vtt_m3u8_name)
|
|
ff_rename(temp_vtt_filename, vs->vtt_m3u8_name, s);
|
|
}
|
|
if (ret >= 0 && hls->master_pl_name)
|
|
if (create_master_playlist(s, vs) < 0)
|
|
av_log(s, AV_LOG_WARNING, "Master playlist creation failed\n");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int hls_start(AVFormatContext *s, VariantStream *vs)
|
|
{
|
|
HLSContext *c = s->priv_data;
|
|
AVFormatContext *oc = vs->avf;
|
|
AVFormatContext *vtt_oc = vs->vtt_avf;
|
|
AVDictionary *options = NULL;
|
|
const char *proto = NULL;
|
|
int use_temp_file = 0;
|
|
char iv_string[KEYSIZE*2 + 1];
|
|
int err = 0;
|
|
|
|
if (c->flags & HLS_SINGLE_FILE) {
|
|
char *new_name = av_strdup(vs->basename);
|
|
if (!new_name)
|
|
return AVERROR(ENOMEM);
|
|
ff_format_set_url(oc, new_name);
|
|
if (vs->vtt_basename) {
|
|
new_name = av_strdup(vs->vtt_basename);
|
|
if (!new_name)
|
|
return AVERROR(ENOMEM);
|
|
ff_format_set_url(vtt_oc, new_name);
|
|
}
|
|
} else if (c->max_seg_size > 0) {
|
|
char *filename = NULL;
|
|
if (replace_int_data_in_filename(&filename,
|
|
vs->basename, 'd', vs->sequence) < 1) {
|
|
av_freep(&filename);
|
|
av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s', you can try to use -strftime 1 with it\n", vs->basename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
ff_format_set_url(oc, filename);
|
|
} else {
|
|
if (c->use_localtime) {
|
|
int r;
|
|
char *expanded = NULL;
|
|
|
|
r = strftime_expand(vs->basename, &expanded);
|
|
if (r < 0) {
|
|
av_log(oc, AV_LOG_ERROR, "Could not get segment filename with strftime\n");
|
|
return r;
|
|
}
|
|
ff_format_set_url(oc, expanded);
|
|
|
|
err = sls_flag_use_localtime_filename(oc, c, vs);
|
|
if (err < 0) {
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
if (c->use_localtime_mkdir) {
|
|
const char *dir;
|
|
char *fn_copy = av_strdup(oc->url);
|
|
if (!fn_copy)
|
|
return AVERROR(ENOMEM);
|
|
dir = av_dirname(fn_copy);
|
|
if (ff_mkdir_p(dir) == -1 && errno != EEXIST) {
|
|
av_log(oc, AV_LOG_ERROR, "Could not create directory %s with use_localtime_mkdir\n", dir);
|
|
av_freep(&fn_copy);
|
|
return AVERROR(errno);
|
|
}
|
|
av_freep(&fn_copy);
|
|
}
|
|
} else {
|
|
char *filename = NULL;
|
|
if (replace_int_data_in_filename(&filename,
|
|
vs->basename, 'd', vs->sequence) < 1) {
|
|
av_freep(&filename);
|
|
av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s' you can try to use -strftime 1 with it\n", vs->basename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
ff_format_set_url(oc, filename);
|
|
}
|
|
if (vs->vtt_basename) {
|
|
char *filename = NULL;
|
|
if (replace_int_data_in_filename(&filename,
|
|
vs->vtt_basename, 'd', vs->sequence) < 1) {
|
|
av_freep(&filename);
|
|
av_log(vtt_oc, AV_LOG_ERROR, "Invalid segment filename template '%s'\n", vs->vtt_basename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
ff_format_set_url(vtt_oc, filename);
|
|
}
|
|
}
|
|
|
|
proto = avio_find_protocol_name(oc->url);
|
|
use_temp_file = proto && !strcmp(proto, "file") && (c->flags & HLS_TEMP_FILE);
|
|
|
|
if (use_temp_file) {
|
|
char *new_name = av_asprintf("%s.tmp", oc->url);
|
|
if (!new_name)
|
|
return AVERROR(ENOMEM);
|
|
ff_format_set_url(oc, new_name);
|
|
}
|
|
|
|
if (c->key_info_file || c->encrypt) {
|
|
if (c->segment_type == SEGMENT_TYPE_FMP4) {
|
|
av_log(s, AV_LOG_ERROR, "Encrypted fmp4 not yet supported\n");
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
|
|
if (c->key_info_file && c->encrypt) {
|
|
av_log(s, AV_LOG_WARNING, "Cannot use both -hls_key_info_file and -hls_enc,"
|
|
" ignoring -hls_enc\n");
|
|
}
|
|
|
|
if (!vs->encrypt_started || (c->flags & HLS_PERIODIC_REKEY)) {
|
|
if (c->key_info_file) {
|
|
if ((err = hls_encryption_start(s, vs)) < 0)
|
|
goto fail;
|
|
} else {
|
|
if (!c->encrypt_started) {
|
|
if ((err = do_encrypt(s, vs)) < 0)
|
|
goto fail;
|
|
c->encrypt_started = 1;
|
|
}
|
|
av_strlcpy(vs->key_uri, c->key_uri, sizeof(vs->key_uri));
|
|
av_strlcpy(vs->key_string, c->key_string, sizeof(vs->key_string));
|
|
av_strlcpy(vs->iv_string, c->iv_string, sizeof(vs->iv_string));
|
|
}
|
|
vs->encrypt_started = 1;
|
|
}
|
|
err = av_strlcpy(iv_string, vs->iv_string, sizeof(iv_string));
|
|
if (!err) {
|
|
snprintf(iv_string, sizeof(iv_string), "%032"PRIx64, vs->sequence);
|
|
memset(vs->iv_string, 0, sizeof(vs->iv_string));
|
|
memcpy(vs->iv_string, iv_string, sizeof(iv_string));
|
|
}
|
|
}
|
|
if (c->segment_type != SEGMENT_TYPE_FMP4) {
|
|
if (oc->oformat->priv_class && oc->priv_data) {
|
|
av_opt_set(oc->priv_data, "mpegts_flags", "resend_headers", 0);
|
|
}
|
|
if (c->flags & HLS_SINGLE_FILE) {
|
|
if (c->key_info_file || c->encrypt) {
|
|
av_dict_set(&options, "encryption_key", vs->key_string, 0);
|
|
av_dict_set(&options, "encryption_iv", vs->iv_string, 0);
|
|
|
|
/* Write temp file with cryption content */
|
|
av_freep(&vs->basename_tmp);
|
|
vs->basename_tmp = av_asprintf("crypto:%s.tmp", oc->url);
|
|
|
|
/* append temp file content into single file */
|
|
av_freep(&vs->basename);
|
|
vs->basename = av_asprintf("%s", oc->url);
|
|
} else {
|
|
vs->basename_tmp = vs->basename;
|
|
}
|
|
set_http_options(s, &options, c);
|
|
if (!vs->out_single_file)
|
|
if ((err = hlsenc_io_open(s, &vs->out_single_file, vs->basename, &options)) < 0) {
|
|
if (c->ignore_io_errors)
|
|
err = 0;
|
|
goto fail;
|
|
}
|
|
|
|
if ((err = hlsenc_io_open(s, &vs->out, vs->basename_tmp, &options)) < 0) {
|
|
if (c->ignore_io_errors)
|
|
err = 0;
|
|
goto fail;
|
|
}
|
|
|
|
}
|
|
}
|
|
if (vs->vtt_basename) {
|
|
set_http_options(s, &options, c);
|
|
if ((err = hlsenc_io_open(s, &vtt_oc->pb, vtt_oc->url, &options)) < 0) {
|
|
if (c->ignore_io_errors)
|
|
err = 0;
|
|
goto fail;
|
|
}
|
|
}
|
|
av_dict_free(&options);
|
|
|
|
if (vs->vtt_basename) {
|
|
err = avformat_write_header(vtt_oc,NULL);
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
fail:
|
|
av_dict_free(&options);
|
|
|
|
return err;
|
|
}
|
|
|
|
static const char * get_default_pattern_localtime_fmt(AVFormatContext *s)
|
|
{
|
|
char b[21];
|
|
time_t t = time(NULL);
|
|
struct tm *p, tmbuf;
|
|
HLSContext *hls = s->priv_data;
|
|
|
|
p = localtime_r(&t, &tmbuf);
|
|
// no %s support when strftime returned error or left format string unchanged
|
|
// also no %s support on MSVC, which invokes the invalid parameter handler on unsupported format strings, instead of returning an error
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.m4s" : "-%s.m4s";
|
|
}
|
|
return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.ts" : "-%s.ts";
|
|
}
|
|
|
|
static int append_postfix(char *name, int name_buf_len, int i)
|
|
{
|
|
char *p;
|
|
char extension[10] = {'\0'};
|
|
|
|
p = strrchr(name, '.');
|
|
if (p) {
|
|
av_strlcpy(extension, p, sizeof(extension));
|
|
*p = '\0';
|
|
}
|
|
|
|
snprintf(name + strlen(name), name_buf_len - strlen(name), POSTFIX_PATTERN, i);
|
|
|
|
if (strlen(extension))
|
|
av_strlcat(name, extension, name_buf_len);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int validate_name(int nb_vs, const char *fn)
|
|
{
|
|
const char *filename, *subdir_name;
|
|
char *fn_dup = NULL;
|
|
int ret = 0;
|
|
|
|
if (!fn)
|
|
return AVERROR(EINVAL);
|
|
|
|
fn_dup = av_strdup(fn);
|
|
if (!fn_dup)
|
|
return AVERROR(ENOMEM);
|
|
filename = av_basename(fn);
|
|
subdir_name = av_dirname(fn_dup);
|
|
|
|
if (nb_vs > 1 && !av_stristr(filename, "%v") && !av_stristr(subdir_name, "%v")) {
|
|
av_log(NULL, AV_LOG_ERROR, "More than 1 variant streams are present, %%v is expected "
|
|
"either in the filename or in the sub-directory name of file %s\n", fn);
|
|
ret = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
|
|
if (av_stristr(filename, "%v") && av_stristr(subdir_name, "%v")) {
|
|
av_log(NULL, AV_LOG_ERROR, "%%v is expected either in the filename or "
|
|
"in the sub-directory name of file %s, but only in one of them\n", fn);
|
|
ret = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
|
|
fail:
|
|
av_freep(&fn_dup);
|
|
return ret;
|
|
}
|
|
|
|
static int format_name(const char *buf, char **s, int index, const char *varname)
|
|
{
|
|
const char *proto, *dir;
|
|
char *orig_buf_dup = NULL, *mod_buf_dup = NULL;
|
|
int ret = 0;
|
|
|
|
orig_buf_dup = av_strdup(buf);
|
|
if (!orig_buf_dup)
|
|
return AVERROR(ENOMEM);
|
|
|
|
if (!av_stristr(buf, "%v")) {
|
|
*s = orig_buf_dup;
|
|
return 0;
|
|
}
|
|
|
|
if (!varname) {
|
|
if (replace_int_data_in_filename(s, orig_buf_dup, 'v', index) < 1) {
|
|
ret = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
} else {
|
|
if (replace_str_data_in_filename(s, orig_buf_dup, 'v', varname) < 1) {
|
|
ret = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
proto = avio_find_protocol_name(orig_buf_dup);
|
|
dir = av_dirname(orig_buf_dup);
|
|
|
|
/* if %v is present in the file's directory, create sub-directory */
|
|
if (av_stristr(dir, "%v") && proto && !strcmp(proto, "file")) {
|
|
mod_buf_dup = av_strdup(*s);
|
|
dir = av_dirname(mod_buf_dup);
|
|
if (ff_mkdir_p(dir) == -1 && errno != EEXIST) {
|
|
ret = AVERROR(errno);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
fail:
|
|
av_freep(&orig_buf_dup);
|
|
av_freep(&mod_buf_dup);
|
|
return ret;
|
|
}
|
|
|
|
static int get_nth_codec_stream_index(AVFormatContext *s,
|
|
enum AVMediaType codec_type,
|
|
int64_t stream_id)
|
|
{
|
|
unsigned int stream_index, cnt;
|
|
if (stream_id < 0 || stream_id > s->nb_streams - 1)
|
|
return -1;
|
|
cnt = 0;
|
|
for (stream_index = 0; stream_index < s->nb_streams; stream_index++) {
|
|
if (s->streams[stream_index]->codecpar->codec_type != codec_type)
|
|
continue;
|
|
if (cnt == stream_id)
|
|
return stream_index;
|
|
cnt++;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static int parse_variant_stream_mapstring(AVFormatContext *s)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
VariantStream *vs;
|
|
int stream_index, i, j;
|
|
enum AVMediaType codec_type;
|
|
int nb_varstreams = 0, nb_streams;
|
|
char *p, *q, *saveptr1, *saveptr2, *varstr, *keyval;
|
|
const char *val;
|
|
|
|
/**
|
|
* Expected format for var_stream_map string is as below:
|
|
* "a:0,v:0 a:1,v:1"
|
|
* "a:0,agroup:a0,default:1,language:ENG a:1,agroup:a1,default:0 v:0,agroup:a0 v:1,agroup:a1"
|
|
* This string specifies how to group the audio, video and subtitle streams
|
|
* into different variant streams. The variant stream groups are separated
|
|
* by space.
|
|
*
|
|
* a:, v:, s: are keys to specify audio, video and subtitle streams
|
|
* respectively. Allowed values are 0 to 9 digits (limited just based on
|
|
* practical usage)
|
|
*
|
|
* agroup: is key to specify audio group. A string can be given as value.
|
|
* sgroup: is key to specify subtitle group. A string can be given as value.
|
|
*/
|
|
p = av_strdup(hls->var_stream_map);
|
|
if (!p)
|
|
return AVERROR(ENOMEM);
|
|
|
|
q = p;
|
|
while (av_strtok(q, " \t", &saveptr1)) {
|
|
q = NULL;
|
|
nb_varstreams++;
|
|
}
|
|
av_freep(&p);
|
|
|
|
hls->var_streams = av_mallocz(sizeof(*hls->var_streams) * nb_varstreams);
|
|
if (!hls->var_streams)
|
|
return AVERROR(ENOMEM);
|
|
hls->nb_varstreams = nb_varstreams;
|
|
|
|
p = hls->var_stream_map;
|
|
nb_varstreams = 0;
|
|
while (varstr = av_strtok(p, " \t", &saveptr1)) {
|
|
p = NULL;
|
|
|
|
if (nb_varstreams < hls->nb_varstreams) {
|
|
vs = &(hls->var_streams[nb_varstreams]);
|
|
vs->var_stream_idx = nb_varstreams;
|
|
vs->is_default = 0;
|
|
nb_varstreams++;
|
|
} else
|
|
return AVERROR(EINVAL);
|
|
|
|
q = varstr;
|
|
while (1) {
|
|
if (!av_strncasecmp(q, "a:", 2) || !av_strncasecmp(q, "v:", 2) ||
|
|
!av_strncasecmp(q, "s:", 2))
|
|
vs->nb_streams++;
|
|
q = strchr(q, ',');
|
|
if (!q)
|
|
break;
|
|
q++;
|
|
}
|
|
vs->streams = av_mallocz(sizeof(AVStream *) * vs->nb_streams);
|
|
if (!vs->streams)
|
|
return AVERROR(ENOMEM);
|
|
|
|
nb_streams = 0;
|
|
while (keyval = av_strtok(varstr, ",", &saveptr2)) {
|
|
int64_t num;
|
|
char *end;
|
|
varstr = NULL;
|
|
if (av_strstart(keyval, "language:", &val)) {
|
|
vs->language = val;
|
|
continue;
|
|
} else if (av_strstart(keyval, "default:", &val)) {
|
|
vs->is_default = (!av_strncasecmp(val, "YES", strlen("YES")) ||
|
|
(!av_strncasecmp(val, "1", strlen("1"))));
|
|
hls->has_default_key = 1;
|
|
continue;
|
|
} else if (av_strstart(keyval, "name:", &val)) {
|
|
vs->varname = val;
|
|
continue;
|
|
} else if (av_strstart(keyval, "agroup:", &val)) {
|
|
vs->agroup = val;
|
|
continue;
|
|
} else if (av_strstart(keyval, "sgroup:", &val)) {
|
|
vs->sgroup = val;
|
|
continue;
|
|
} else if (av_strstart(keyval, "ccgroup:", &val)) {
|
|
vs->ccgroup = val;
|
|
continue;
|
|
} else if (av_strstart(keyval, "v:", &val)) {
|
|
codec_type = AVMEDIA_TYPE_VIDEO;
|
|
hls->has_video_m3u8 = 1;
|
|
} else if (av_strstart(keyval, "a:", &val)) {
|
|
codec_type = AVMEDIA_TYPE_AUDIO;
|
|
} else if (av_strstart(keyval, "s:", &val)) {
|
|
codec_type = AVMEDIA_TYPE_SUBTITLE;
|
|
} else {
|
|
av_log(s, AV_LOG_ERROR, "Invalid keyval %s\n", keyval);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
num = strtoll(val, &end, 10);
|
|
if (!av_isdigit(*val) || *end != '\0') {
|
|
av_log(s, AV_LOG_ERROR, "Invalid stream number: '%s'\n", val);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
stream_index = get_nth_codec_stream_index(s, codec_type, num);
|
|
|
|
if (stream_index >= 0 && nb_streams < vs->nb_streams) {
|
|
for (i = 0; nb_streams > 0 && i < nb_streams; i++) {
|
|
if (vs->streams[i] == s->streams[stream_index]) {
|
|
av_log(s, AV_LOG_ERROR, "Same elementary stream found more than once inside "
|
|
"variant definition #%d\n", nb_varstreams - 1);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
}
|
|
for (j = 0; nb_varstreams > 1 && j < nb_varstreams - 1; j++) {
|
|
for (i = 0; i < hls->var_streams[j].nb_streams; i++) {
|
|
if (hls->var_streams[j].streams[i] == s->streams[stream_index]) {
|
|
av_log(s, AV_LOG_ERROR, "Same elementary stream found more than once "
|
|
"in two different variant definitions #%d and #%d\n",
|
|
j, nb_varstreams - 1);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
}
|
|
}
|
|
vs->streams[nb_streams++] = s->streams[stream_index];
|
|
} else {
|
|
av_log(s, AV_LOG_ERROR, "Unable to map stream at %s\n", keyval);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
}
|
|
}
|
|
av_log(s, AV_LOG_DEBUG, "Number of variant streams %d\n",
|
|
hls->nb_varstreams);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int parse_cc_stream_mapstring(AVFormatContext *s)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
int nb_ccstreams = 0;
|
|
char *p, *q, *ccstr, *keyval;
|
|
char *saveptr1 = NULL, *saveptr2 = NULL;
|
|
const char *val;
|
|
ClosedCaptionsStream *ccs;
|
|
|
|
p = av_strdup(hls->cc_stream_map);
|
|
if(!p)
|
|
return AVERROR(ENOMEM);
|
|
|
|
q = p;
|
|
while (av_strtok(q, " \t", &saveptr1)) {
|
|
q = NULL;
|
|
nb_ccstreams++;
|
|
}
|
|
av_freep(&p);
|
|
|
|
hls->cc_streams = av_mallocz(sizeof(*hls->cc_streams) * nb_ccstreams);
|
|
if (!hls->cc_streams)
|
|
return AVERROR(ENOMEM);
|
|
hls->nb_ccstreams = nb_ccstreams;
|
|
|
|
p = hls->cc_stream_map;
|
|
nb_ccstreams = 0;
|
|
while (ccstr = av_strtok(p, " \t", &saveptr1)) {
|
|
p = NULL;
|
|
|
|
if (nb_ccstreams < hls->nb_ccstreams)
|
|
ccs = &(hls->cc_streams[nb_ccstreams++]);
|
|
else
|
|
return AVERROR(EINVAL);
|
|
|
|
while (keyval = av_strtok(ccstr, ",", &saveptr2)) {
|
|
ccstr = NULL;
|
|
|
|
if (av_strstart(keyval, "ccgroup:", &val)) {
|
|
ccs->ccgroup = val;
|
|
} else if (av_strstart(keyval, "instreamid:", &val)) {
|
|
ccs->instreamid = val;
|
|
} else if (av_strstart(keyval, "language:", &val)) {
|
|
ccs->language = val;
|
|
} else {
|
|
av_log(s, AV_LOG_ERROR, "Invalid keyval %s\n", keyval);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
}
|
|
|
|
if (!ccs->ccgroup || !ccs->instreamid) {
|
|
av_log(s, AV_LOG_ERROR, "Insufficient parameters in cc stream map string\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (av_strstart(ccs->instreamid, "CC", &val)) {
|
|
if (atoi(val) < 1 || atoi(val) > 4) {
|
|
av_log(s, AV_LOG_ERROR, "Invalid instream ID CC index %d in %s, range 1-4\n",
|
|
atoi(val), ccs->instreamid);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
} else if (av_strstart(ccs->instreamid, "SERVICE", &val)) {
|
|
if (atoi(val) < 1 || atoi(val) > 63) {
|
|
av_log(s, AV_LOG_ERROR, "Invalid instream ID SERVICE index %d in %s, range 1-63 \n",
|
|
atoi(val), ccs->instreamid);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
} else {
|
|
av_log(s, AV_LOG_ERROR, "Invalid instream ID %s, supported are CCn or SERVICEn\n",
|
|
ccs->instreamid);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int update_variant_stream_info(AVFormatContext *s)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
unsigned int i;
|
|
int ret = 0;
|
|
|
|
if (hls->cc_stream_map) {
|
|
ret = parse_cc_stream_mapstring(s);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
if (hls->var_stream_map) {
|
|
return parse_variant_stream_mapstring(s);
|
|
} else {
|
|
//By default, a single variant stream with all the codec streams is created
|
|
hls->var_streams = av_mallocz(sizeof(*hls->var_streams));
|
|
if (!hls->var_streams)
|
|
return AVERROR(ENOMEM);
|
|
hls->nb_varstreams = 1;
|
|
|
|
hls->var_streams[0].var_stream_idx = 0;
|
|
hls->var_streams[0].nb_streams = s->nb_streams;
|
|
hls->var_streams[0].streams = av_mallocz(sizeof(AVStream *) *
|
|
hls->var_streams[0].nb_streams);
|
|
if (!hls->var_streams[0].streams)
|
|
return AVERROR(ENOMEM);
|
|
|
|
//by default, the first available ccgroup is mapped to the variant stream
|
|
if (hls->nb_ccstreams)
|
|
hls->var_streams[0].ccgroup = hls->cc_streams[0].ccgroup;
|
|
|
|
for (i = 0; i < s->nb_streams; i++)
|
|
hls->var_streams[0].streams[i] = s->streams[i];
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int update_master_pl_info(AVFormatContext *s)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
const char *dir;
|
|
char *fn1= NULL, *fn2 = NULL;
|
|
int ret = 0;
|
|
|
|
fn1 = av_strdup(s->url);
|
|
if (!fn1)
|
|
return AVERROR(ENOMEM);
|
|
dir = av_dirname(fn1);
|
|
|
|
/**
|
|
* if output file's directory has %v, variants are created in sub-directories
|
|
* then master is created at the sub-directories level
|
|
*/
|
|
if (dir && av_stristr(av_basename(dir), "%v")) {
|
|
fn2 = av_strdup(dir);
|
|
if (!fn2) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
dir = av_dirname(fn2);
|
|
}
|
|
|
|
if (dir && strcmp(dir, "."))
|
|
hls->master_m3u8_url = av_append_path_component(dir, hls->master_pl_name);
|
|
else
|
|
hls->master_m3u8_url = av_strdup(hls->master_pl_name);
|
|
|
|
if (!hls->master_m3u8_url) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
fail:
|
|
av_freep(&fn1);
|
|
av_freep(&fn2);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int hls_write_header(AVFormatContext *s)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
int ret, i, j;
|
|
VariantStream *vs = NULL;
|
|
|
|
for (i = 0; i < hls->nb_varstreams; i++) {
|
|
vs = &hls->var_streams[i];
|
|
|
|
ret = avformat_write_header(vs->avf, NULL);
|
|
if (ret < 0)
|
|
return ret;
|
|
//av_assert0(s->nb_streams == hls->avf->nb_streams);
|
|
for (j = 0; j < vs->nb_streams; j++) {
|
|
AVStream *inner_st;
|
|
AVStream *outer_st = vs->streams[j];
|
|
|
|
if (hls->max_seg_size > 0) {
|
|
if ((outer_st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
|
|
(outer_st->codecpar->bit_rate > hls->max_seg_size)) {
|
|
av_log(s, AV_LOG_WARNING, "Your video bitrate is bigger than hls_segment_size, "
|
|
"(%"PRId64 " > %"PRId64 "), the result maybe not be what you want.",
|
|
outer_st->codecpar->bit_rate, hls->max_seg_size);
|
|
}
|
|
}
|
|
|
|
if (outer_st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE)
|
|
inner_st = vs->avf->streams[j];
|
|
else if (vs->vtt_avf)
|
|
inner_st = vs->vtt_avf->streams[0];
|
|
else {
|
|
/* We have a subtitle stream, when the user does not want one */
|
|
inner_st = NULL;
|
|
continue;
|
|
}
|
|
avpriv_set_pts_info(outer_st, inner_st->pts_wrap_bits, inner_st->time_base.num, inner_st->time_base.den);
|
|
if (outer_st->codecpar->codec_id == AV_CODEC_ID_HEVC &&
|
|
outer_st->codecpar->codec_tag != MKTAG('h','v','c','1')) {
|
|
av_log(s, AV_LOG_WARNING, "Stream HEVC is not hvc1, you should use tag:v hvc1 to set it.\n");
|
|
}
|
|
write_codec_attr(outer_st, vs);
|
|
|
|
}
|
|
/* Update the Codec Attr string for the mapped audio groups */
|
|
if (vs->has_video && vs->agroup) {
|
|
for (j = 0; j < hls->nb_varstreams; j++) {
|
|
VariantStream *vs_agroup = &(hls->var_streams[j]);
|
|
if (!vs_agroup->has_video && !vs_agroup->has_subtitle &&
|
|
vs_agroup->agroup &&
|
|
!av_strcasecmp(vs_agroup->agroup, vs->agroup)) {
|
|
write_codec_attr(vs_agroup->streams[0], vs);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int hls_init_file_resend(AVFormatContext *s, VariantStream *vs)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
AVDictionary *options = NULL;
|
|
int ret = 0;
|
|
|
|
set_http_options(s, &options, hls);
|
|
ret = hlsenc_io_open(s, &vs->out, vs->base_output_dirname, &options);
|
|
av_dict_free(&options);
|
|
if (ret < 0)
|
|
return ret;
|
|
avio_write(vs->out, vs->init_buffer, vs->init_range_length);
|
|
hlsenc_io_close(s, &vs->out, hls->fmp4_init_filename);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int64_t append_single_file(AVFormatContext *s, VariantStream *vs)
|
|
{
|
|
int ret = 0;
|
|
int64_t read_byte = 0;
|
|
int64_t total_size = 0;
|
|
char *filename = NULL;
|
|
char buf[BUFSIZE];
|
|
AVFormatContext *oc = vs->avf;
|
|
|
|
hlsenc_io_close(s, &vs->out, vs->basename_tmp);
|
|
filename = av_asprintf("%s.tmp", oc->url);
|
|
ret = s->io_open(s, &vs->out, filename, AVIO_FLAG_READ, NULL);
|
|
if (ret < 0) {
|
|
av_free(filename);
|
|
return ret;
|
|
}
|
|
|
|
do {
|
|
memset(buf, 0, sizeof(BUFSIZE));
|
|
read_byte = avio_read(vs->out, buf, BUFSIZE);
|
|
avio_write(vs->out_single_file, buf, read_byte);
|
|
if (read_byte > 0) {
|
|
total_size += read_byte;
|
|
ret = total_size;
|
|
}
|
|
} while (read_byte > 0);
|
|
|
|
hlsenc_io_close(s, &vs->out, filename);
|
|
av_free(filename);
|
|
|
|
return ret;
|
|
}
|
|
static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
AVFormatContext *oc = NULL;
|
|
AVStream *st = s->streams[pkt->stream_index];
|
|
int64_t end_pts = 0;
|
|
int is_ref_pkt = 1;
|
|
int ret = 0, can_split = 1, i, j;
|
|
int stream_index = 0;
|
|
int range_length = 0;
|
|
const char *proto = NULL;
|
|
int use_temp_file = 0;
|
|
VariantStream *vs = NULL;
|
|
char *old_filename = NULL;
|
|
|
|
for (i = 0; i < hls->nb_varstreams; i++) {
|
|
vs = &hls->var_streams[i];
|
|
for (j = 0; j < vs->nb_streams; j++) {
|
|
if (vs->streams[j] == st) {
|
|
if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
|
|
oc = vs->vtt_avf;
|
|
stream_index = 0;
|
|
} else {
|
|
oc = vs->avf;
|
|
stream_index = j;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (oc)
|
|
break;
|
|
}
|
|
|
|
if (!oc) {
|
|
av_log(s, AV_LOG_ERROR, "Unable to find mapping variant stream\n");
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
end_pts = hls->recording_time * vs->number;
|
|
|
|
if (vs->sequence - vs->nb_entries > hls->start_sequence && hls->init_time > 0) {
|
|
/* reset end_pts, hls->recording_time at end of the init hls list */
|
|
int64_t init_list_dur = hls->init_time * vs->nb_entries;
|
|
int64_t after_init_list_dur = (vs->sequence - hls->start_sequence - vs->nb_entries) * hls->time;
|
|
hls->recording_time = hls->time;
|
|
end_pts = init_list_dur + after_init_list_dur ;
|
|
}
|
|
|
|
if (vs->start_pts == AV_NOPTS_VALUE) {
|
|
vs->start_pts = pkt->pts;
|
|
if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
|
|
vs->start_pts_from_audio = 1;
|
|
}
|
|
if (vs->start_pts_from_audio && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && vs->start_pts > pkt->pts) {
|
|
vs->start_pts = pkt->pts;
|
|
vs->start_pts_from_audio = 0;
|
|
}
|
|
|
|
if (vs->has_video) {
|
|
can_split = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
|
|
((pkt->flags & AV_PKT_FLAG_KEY) || (hls->flags & HLS_SPLIT_BY_TIME));
|
|
is_ref_pkt = (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && (pkt->stream_index == vs->reference_stream_index);
|
|
}
|
|
if (pkt->pts == AV_NOPTS_VALUE)
|
|
is_ref_pkt = can_split = 0;
|
|
|
|
if (is_ref_pkt) {
|
|
if (vs->end_pts == AV_NOPTS_VALUE)
|
|
vs->end_pts = pkt->pts;
|
|
if (vs->new_start) {
|
|
vs->new_start = 0;
|
|
vs->duration = (double)(pkt->pts - vs->end_pts)
|
|
* st->time_base.num / st->time_base.den;
|
|
vs->dpp = (double)(pkt->duration) * st->time_base.num / st->time_base.den;
|
|
} else {
|
|
if (pkt->duration) {
|
|
vs->duration += (double)(pkt->duration) * st->time_base.num / st->time_base.den;
|
|
} else {
|
|
av_log(s, AV_LOG_WARNING, "Stream %d packet with pts %" PRId64 " has duration 0. The segment duration may not be precise.\n",
|
|
pkt->stream_index, pkt->pts);
|
|
vs->duration = (double)(pkt->pts - vs->end_pts) * st->time_base.num / st->time_base.den;
|
|
}
|
|
}
|
|
}
|
|
|
|
can_split = can_split && (pkt->pts - vs->end_pts > 0);
|
|
if (vs->packets_written && can_split && av_compare_ts(pkt->pts - vs->start_pts, st->time_base,
|
|
end_pts, AV_TIME_BASE_Q) >= 0) {
|
|
int64_t new_start_pos;
|
|
int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
|
|
|
|
av_write_frame(oc, NULL); /* Flush any buffered data */
|
|
new_start_pos = avio_tell(oc->pb);
|
|
vs->size = new_start_pos - vs->start_pos;
|
|
avio_flush(oc->pb);
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
if (!vs->init_range_length) {
|
|
range_length = avio_close_dyn_buf(oc->pb, &vs->init_buffer);
|
|
if (range_length <= 0)
|
|
return AVERROR(EINVAL);
|
|
avio_write(vs->out, vs->init_buffer, range_length);
|
|
if (!hls->resend_init_file)
|
|
av_freep(&vs->init_buffer);
|
|
vs->init_range_length = range_length;
|
|
avio_open_dyn_buf(&oc->pb);
|
|
vs->packets_written = 0;
|
|
vs->start_pos = range_length;
|
|
if (!byterange_mode) {
|
|
hlsenc_io_close(s, &vs->out, vs->base_output_dirname);
|
|
}
|
|
}
|
|
}
|
|
if (!byterange_mode) {
|
|
if (vs->vtt_avf) {
|
|
hlsenc_io_close(s, &vs->vtt_avf->pb, vs->vtt_avf->url);
|
|
}
|
|
}
|
|
|
|
if (hls->flags & HLS_SINGLE_FILE) {
|
|
ret = flush_dynbuf(vs, &range_length);
|
|
av_freep(&vs->temp_buffer);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
vs->size = range_length;
|
|
if (hls->key_info_file || hls->encrypt)
|
|
vs->size = append_single_file(s, vs);
|
|
} else {
|
|
if (oc->url[0]) {
|
|
proto = avio_find_protocol_name(oc->url);
|
|
use_temp_file = proto && !strcmp(proto, "file")
|
|
&& (hls->flags & HLS_TEMP_FILE);
|
|
}
|
|
|
|
if ((hls->max_seg_size > 0 && (vs->size + vs->start_pos >= hls->max_seg_size)) || !byterange_mode) {
|
|
AVDictionary *options = NULL;
|
|
char *filename = NULL;
|
|
if (hls->key_info_file || hls->encrypt) {
|
|
av_dict_set(&options, "encryption_key", vs->key_string, 0);
|
|
av_dict_set(&options, "encryption_iv", vs->iv_string, 0);
|
|
filename = av_asprintf("crypto:%s", oc->url);
|
|
} else {
|
|
filename = av_asprintf("%s", oc->url);
|
|
}
|
|
if (!filename) {
|
|
av_dict_free(&options);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
// look to rename the asset name
|
|
if (use_temp_file)
|
|
av_dict_set(&options, "mpegts_flags", "resend_headers", 0);
|
|
|
|
set_http_options(s, &options, hls);
|
|
|
|
ret = hlsenc_io_open(s, &vs->out, filename, &options);
|
|
if (ret < 0) {
|
|
av_log(s, hls->ignore_io_errors ? AV_LOG_WARNING : AV_LOG_ERROR,
|
|
"Failed to open file '%s'\n", filename);
|
|
av_freep(&filename);
|
|
av_dict_free(&options);
|
|
return hls->ignore_io_errors ? 0 : ret;
|
|
}
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
write_styp(vs->out);
|
|
}
|
|
ret = flush_dynbuf(vs, &range_length);
|
|
if (ret < 0) {
|
|
av_freep(&filename);
|
|
av_dict_free(&options);
|
|
return ret;
|
|
}
|
|
ret = hlsenc_io_close(s, &vs->out, filename);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_WARNING, "upload segment failed,"
|
|
" will retry with a new http session.\n");
|
|
ff_format_io_close(s, &vs->out);
|
|
ret = hlsenc_io_open(s, &vs->out, filename, &options);
|
|
reflush_dynbuf(vs, &range_length);
|
|
ret = hlsenc_io_close(s, &vs->out, filename);
|
|
}
|
|
av_dict_free(&options);
|
|
av_freep(&vs->temp_buffer);
|
|
av_freep(&filename);
|
|
}
|
|
|
|
if (use_temp_file)
|
|
hls_rename_temp_file(s, oc);
|
|
}
|
|
|
|
old_filename = av_strdup(oc->url);
|
|
if (!old_filename) {
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
if (vs->start_pos || hls->segment_type != SEGMENT_TYPE_FMP4) {
|
|
double cur_duration = (double)(pkt->pts - vs->end_pts) * st->time_base.num / st->time_base.den;
|
|
ret = hls_append_segment(s, hls, vs, cur_duration, vs->start_pos, vs->size);
|
|
vs->end_pts = pkt->pts;
|
|
vs->duration = 0;
|
|
if (ret < 0) {
|
|
av_freep(&old_filename);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
// if we're building a VOD playlist, skip writing the manifest multiple times, and just wait until the end
|
|
if (hls->pl_type != PLAYLIST_TYPE_VOD) {
|
|
if ((ret = hls_window(s, 0, vs)) < 0) {
|
|
av_log(s, AV_LOG_WARNING, "upload playlist failed, will retry with a new http session.\n");
|
|
ff_format_io_close(s, &vs->out);
|
|
if ((ret = hls_window(s, 0, vs)) < 0) {
|
|
av_freep(&old_filename);
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (hls->resend_init_file && hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
ret = hls_init_file_resend(s, vs);
|
|
if (ret < 0) {
|
|
av_freep(&old_filename);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if (hls->flags & HLS_SINGLE_FILE) {
|
|
vs->start_pos += vs->size;
|
|
if (hls->key_info_file || hls->encrypt)
|
|
ret = hls_start(s, vs);
|
|
} else if (hls->max_seg_size > 0) {
|
|
if (vs->size + vs->start_pos >= hls->max_seg_size) {
|
|
vs->sequence++;
|
|
sls_flag_file_rename(hls, vs, old_filename);
|
|
ret = hls_start(s, vs);
|
|
vs->start_pos = 0;
|
|
/* When split segment by byte, the duration is short than hls_time,
|
|
* so it is not enough one segment duration as hls_time, */
|
|
} else {
|
|
vs->start_pos = new_start_pos;
|
|
}
|
|
} else {
|
|
vs->start_pos = new_start_pos;
|
|
sls_flag_file_rename(hls, vs, old_filename);
|
|
ret = hls_start(s, vs);
|
|
}
|
|
vs->number++;
|
|
av_freep(&old_filename);
|
|
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
|
|
}
|
|
|
|
vs->packets_written++;
|
|
if (oc->pb) {
|
|
int64_t keyframe_pre_pos = avio_tell(oc->pb);
|
|
ret = ff_write_chained(oc, stream_index, pkt, s, 0);
|
|
if ((st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
|
|
(pkt->flags & AV_PKT_FLAG_KEY) && !keyframe_pre_pos) {
|
|
av_write_frame(oc, NULL); /* Flush any buffered data */
|
|
vs->video_keyframe_size = avio_tell(oc->pb) - keyframe_pre_pos;
|
|
}
|
|
vs->video_keyframe_pos = vs->start_pos;
|
|
if (hls->ignore_io_errors)
|
|
ret = 0;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void hls_deinit(AVFormatContext *s)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
int i = 0;
|
|
VariantStream *vs = NULL;
|
|
|
|
for (i = 0; i < hls->nb_varstreams; i++) {
|
|
vs = &hls->var_streams[i];
|
|
|
|
av_freep(&vs->basename);
|
|
av_freep(&vs->base_output_dirname);
|
|
av_freep(&vs->fmp4_init_filename);
|
|
av_freep(&vs->vtt_basename);
|
|
av_freep(&vs->vtt_m3u8_name);
|
|
|
|
avformat_free_context(vs->vtt_avf);
|
|
avformat_free_context(vs->avf);
|
|
if (hls->resend_init_file)
|
|
av_freep(&vs->init_buffer);
|
|
hls_free_segments(vs->segments);
|
|
hls_free_segments(vs->old_segments);
|
|
av_freep(&vs->m3u8_name);
|
|
av_freep(&vs->streams);
|
|
}
|
|
|
|
ff_format_io_close(s, &hls->m3u8_out);
|
|
ff_format_io_close(s, &hls->sub_m3u8_out);
|
|
av_freep(&hls->key_basename);
|
|
av_freep(&hls->var_streams);
|
|
av_freep(&hls->cc_streams);
|
|
av_freep(&hls->master_m3u8_url);
|
|
}
|
|
|
|
static int hls_write_trailer(struct AVFormatContext *s)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
AVFormatContext *oc = NULL;
|
|
AVFormatContext *vtt_oc = NULL;
|
|
char *old_filename = NULL;
|
|
const char *proto = NULL;
|
|
int use_temp_file = 0;
|
|
int i;
|
|
int ret = 0;
|
|
VariantStream *vs = NULL;
|
|
AVDictionary *options = NULL;
|
|
int range_length, byterange_mode;
|
|
|
|
for (i = 0; i < hls->nb_varstreams; i++) {
|
|
char *filename = NULL;
|
|
vs = &hls->var_streams[i];
|
|
oc = vs->avf;
|
|
vtt_oc = vs->vtt_avf;
|
|
old_filename = av_strdup(oc->url);
|
|
use_temp_file = 0;
|
|
|
|
if (!old_filename) {
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
if (hls->key_info_file || hls->encrypt) {
|
|
av_dict_set(&options, "encryption_key", vs->key_string, 0);
|
|
av_dict_set(&options, "encryption_iv", vs->iv_string, 0);
|
|
filename = av_asprintf("crypto:%s", oc->url);
|
|
} else {
|
|
filename = av_asprintf("%s", oc->url);
|
|
}
|
|
if (!filename) {
|
|
av_freep(&old_filename);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
int range_length = 0;
|
|
if (!vs->init_range_length) {
|
|
uint8_t *buffer = NULL;
|
|
av_write_frame(oc, NULL); /* Flush any buffered data */
|
|
|
|
range_length = avio_close_dyn_buf(oc->pb, &buffer);
|
|
avio_write(vs->out, buffer, range_length);
|
|
av_freep(&buffer);
|
|
vs->init_range_length = range_length;
|
|
avio_open_dyn_buf(&oc->pb);
|
|
vs->packets_written = 0;
|
|
vs->start_pos = range_length;
|
|
byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
|
|
if (!byterange_mode) {
|
|
ff_format_io_close(s, &vs->out);
|
|
hlsenc_io_close(s, &vs->out, vs->base_output_dirname);
|
|
}
|
|
}
|
|
}
|
|
if (!(hls->flags & HLS_SINGLE_FILE)) {
|
|
set_http_options(s, &options, hls);
|
|
ret = hlsenc_io_open(s, &vs->out, filename, &options);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Failed to open file '%s'\n", oc->url);
|
|
goto failed;
|
|
}
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4)
|
|
write_styp(vs->out);
|
|
}
|
|
ret = flush_dynbuf(vs, &range_length);
|
|
if (ret < 0)
|
|
goto failed;
|
|
|
|
vs->size = range_length;
|
|
ret = hlsenc_io_close(s, &vs->out, filename);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_WARNING, "upload segment failed, will retry with a new http session.\n");
|
|
ff_format_io_close(s, &vs->out);
|
|
ret = hlsenc_io_open(s, &vs->out, filename, &options);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Failed to open file '%s'\n", oc->url);
|
|
goto failed;
|
|
}
|
|
reflush_dynbuf(vs, &range_length);
|
|
ret = hlsenc_io_close(s, &vs->out, filename);
|
|
if (ret < 0)
|
|
av_log(s, AV_LOG_WARNING, "Failed to upload file '%s' at the end.\n", oc->url);
|
|
}
|
|
if (hls->flags & HLS_SINGLE_FILE) {
|
|
if (hls->key_info_file || hls->encrypt) {
|
|
vs->size = append_single_file(s, vs);
|
|
}
|
|
hlsenc_io_close(s, &vs->out_single_file, vs->basename);
|
|
}
|
|
failed:
|
|
av_freep(&vs->temp_buffer);
|
|
av_dict_free(&options);
|
|
av_freep(&filename);
|
|
av_write_trailer(oc);
|
|
if (oc->url[0]) {
|
|
proto = avio_find_protocol_name(oc->url);
|
|
use_temp_file = proto && !strcmp(proto, "file") && (hls->flags & HLS_TEMP_FILE);
|
|
}
|
|
|
|
// rename that segment from .tmp to the real one
|
|
if (use_temp_file && !(hls->flags & HLS_SINGLE_FILE)) {
|
|
hls_rename_temp_file(s, oc);
|
|
av_freep(&old_filename);
|
|
old_filename = av_strdup(oc->url);
|
|
|
|
if (!old_filename) {
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
}
|
|
|
|
/* after av_write_trailer, then duration + 1 duration per packet */
|
|
hls_append_segment(s, hls, vs, vs->duration + vs->dpp, vs->start_pos, vs->size);
|
|
|
|
sls_flag_file_rename(hls, vs, old_filename);
|
|
|
|
if (vtt_oc) {
|
|
if (vtt_oc->pb)
|
|
av_write_trailer(vtt_oc);
|
|
vs->size = avio_tell(vs->vtt_avf->pb) - vs->start_pos;
|
|
ff_format_io_close(s, &vtt_oc->pb);
|
|
}
|
|
ret = hls_window(s, 1, vs);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_WARNING, "upload playlist failed, will retry with a new http session.\n");
|
|
ff_format_io_close(s, &vs->out);
|
|
hls_window(s, 1, vs);
|
|
}
|
|
ffio_free_dyn_buf(&oc->pb);
|
|
|
|
av_free(old_filename);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int hls_init(AVFormatContext *s)
|
|
{
|
|
int ret = 0;
|
|
int i = 0;
|
|
int j = 0;
|
|
HLSContext *hls = s->priv_data;
|
|
const char *pattern;
|
|
VariantStream *vs = NULL;
|
|
const char *vtt_pattern = hls->flags & HLS_SINGLE_FILE ? ".vtt" : "%d.vtt";
|
|
char *p = NULL;
|
|
int http_base_proto = ff_is_http_proto(s->url);
|
|
int fmp4_init_filename_len = strlen(hls->fmp4_init_filename) + 1;
|
|
double initial_program_date_time = av_gettime() / 1000000.0;
|
|
|
|
if (hls->use_localtime) {
|
|
pattern = get_default_pattern_localtime_fmt(s);
|
|
} else {
|
|
pattern = hls->segment_type == SEGMENT_TYPE_FMP4 ? "%d.m4s" : "%d.ts";
|
|
if (hls->flags & HLS_SINGLE_FILE)
|
|
pattern += 2;
|
|
}
|
|
|
|
hls->has_default_key = 0;
|
|
hls->has_video_m3u8 = 0;
|
|
ret = update_variant_stream_info(s);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Variant stream info update failed with status %x\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
if (!hls->method && http_base_proto) {
|
|
av_log(hls, AV_LOG_WARNING, "No HTTP method set, hls muxer defaulting to method PUT.\n");
|
|
}
|
|
|
|
ret = validate_name(hls->nb_varstreams, s->url);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (hls->segment_filename) {
|
|
ret = validate_name(hls->nb_varstreams, hls->segment_filename);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
if (av_strcasecmp(hls->fmp4_init_filename, "init.mp4")) {
|
|
ret = validate_name(hls->nb_varstreams, hls->fmp4_init_filename);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
if (hls->subtitle_filename) {
|
|
ret = validate_name(hls->nb_varstreams, hls->subtitle_filename);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
if (hls->master_pl_name) {
|
|
ret = update_master_pl_info(s);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Master stream info update failed with status %x\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if ((hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH) ||
|
|
(hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH) ||
|
|
(hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_FORMATTED_DATETIME)) {
|
|
time_t t = time(NULL);
|
|
if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH) {
|
|
hls->start_sequence = av_gettime();
|
|
} else if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH) {
|
|
hls->start_sequence = (int64_t)t;
|
|
} else if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_FORMATTED_DATETIME) {
|
|
char b[15];
|
|
struct tm *p, tmbuf;
|
|
if (!(p = localtime_r(&t, &tmbuf)))
|
|
return AVERROR(errno);
|
|
if (!strftime(b, sizeof(b), "%Y%m%d%H%M%S", p))
|
|
return AVERROR(ENOMEM);
|
|
hls->start_sequence = strtoll(b, NULL, 10);
|
|
}
|
|
av_log(hls, AV_LOG_DEBUG, "start_number evaluated to %"PRId64"\n", hls->start_sequence);
|
|
}
|
|
|
|
hls->recording_time = hls->init_time ? hls->init_time : hls->time;
|
|
|
|
if (hls->flags & HLS_SPLIT_BY_TIME && hls->flags & HLS_INDEPENDENT_SEGMENTS) {
|
|
// Independent segments cannot be guaranteed when splitting by time
|
|
hls->flags &= ~HLS_INDEPENDENT_SEGMENTS;
|
|
av_log(s, AV_LOG_WARNING,
|
|
"'split_by_time' and 'independent_segments' cannot be "
|
|
"enabled together. Disabling 'independent_segments' flag\n");
|
|
}
|
|
|
|
for (i = 0; i < hls->nb_varstreams; i++) {
|
|
vs = &hls->var_streams[i];
|
|
|
|
ret = format_name(s->url, &vs->m3u8_name, i, vs->varname);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
vs->sequence = hls->start_sequence;
|
|
vs->start_pts = AV_NOPTS_VALUE;
|
|
vs->end_pts = AV_NOPTS_VALUE;
|
|
vs->current_segment_final_filename_fmt[0] = '\0';
|
|
vs->initial_prog_date_time = initial_program_date_time;
|
|
|
|
for (j = 0; j < vs->nb_streams; j++) {
|
|
vs->has_video += vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO;
|
|
/* Get one video stream to reference for split segments
|
|
* so use the first video stream index. */
|
|
if ((vs->has_video == 1) && (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)) {
|
|
vs->reference_stream_index = vs->streams[j]->index;
|
|
}
|
|
vs->has_subtitle += vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE;
|
|
}
|
|
|
|
if (vs->has_video > 1)
|
|
av_log(s, AV_LOG_WARNING, "More than a single video stream present, expect issues decoding it.\n");
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
vs->oformat = av_guess_format("mp4", NULL, NULL);
|
|
} else {
|
|
vs->oformat = av_guess_format("mpegts", NULL, NULL);
|
|
}
|
|
if (!vs->oformat)
|
|
return AVERROR_MUXER_NOT_FOUND;
|
|
|
|
if (hls->segment_filename) {
|
|
ret = format_name(hls->segment_filename, &vs->basename, i, vs->varname);
|
|
if (ret < 0)
|
|
return ret;
|
|
} else {
|
|
p = strrchr(vs->m3u8_name, '.');
|
|
if (p)
|
|
*p = '\0';
|
|
|
|
vs->basename = av_asprintf("%s%s", vs->m3u8_name, pattern);
|
|
if (!vs->basename)
|
|
return AVERROR(ENOMEM);
|
|
|
|
if (p)
|
|
*p = '.';
|
|
}
|
|
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
if (hls->nb_varstreams > 1)
|
|
fmp4_init_filename_len += strlen(POSTFIX_PATTERN);
|
|
if (hls->flags & HLS_SINGLE_FILE) {
|
|
vs->fmp4_init_filename = av_strdup(vs->basename);
|
|
if (!vs->fmp4_init_filename)
|
|
return AVERROR(ENOMEM);
|
|
} else {
|
|
vs->fmp4_init_filename = av_malloc(fmp4_init_filename_len);
|
|
if (!vs->fmp4_init_filename)
|
|
return AVERROR(ENOMEM);
|
|
av_strlcpy(vs->fmp4_init_filename, hls->fmp4_init_filename,
|
|
fmp4_init_filename_len);
|
|
if (hls->nb_varstreams > 1) {
|
|
if (av_stristr(vs->fmp4_init_filename, "%v")) {
|
|
av_freep(&vs->fmp4_init_filename);
|
|
ret = format_name(hls->fmp4_init_filename,
|
|
&vs->fmp4_init_filename, i, vs->varname);
|
|
} else {
|
|
ret = append_postfix(vs->fmp4_init_filename, fmp4_init_filename_len, i);
|
|
}
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
if (hls->use_localtime) {
|
|
int r;
|
|
char *expanded = NULL;
|
|
|
|
r = strftime_expand(vs->fmp4_init_filename, &expanded);
|
|
if (r < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Could not get segment filename with strftime\n");
|
|
return r;
|
|
}
|
|
av_free(vs->fmp4_init_filename);
|
|
vs->fmp4_init_filename = expanded;
|
|
}
|
|
|
|
p = strrchr(vs->m3u8_name, '/');
|
|
if (p) {
|
|
char tmp = *(++p);
|
|
*p = '\0';
|
|
vs->base_output_dirname = av_asprintf("%s%s", vs->m3u8_name,
|
|
vs->fmp4_init_filename);
|
|
*p = tmp;
|
|
} else {
|
|
vs->base_output_dirname = av_strdup(vs->fmp4_init_filename);
|
|
}
|
|
if (!vs->base_output_dirname)
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
}
|
|
|
|
ret = hls->use_localtime ? sls_flag_check_duration_size(hls, vs) : sls_flag_check_duration_size_index(hls);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (vs->has_subtitle) {
|
|
vs->vtt_oformat = av_guess_format("webvtt", NULL, NULL);
|
|
if (!vs->vtt_oformat)
|
|
return AVERROR_MUXER_NOT_FOUND;
|
|
|
|
p = strrchr(vs->m3u8_name, '.');
|
|
if (p)
|
|
*p = '\0';
|
|
|
|
vs->vtt_basename = av_asprintf("%s%s", vs->m3u8_name, vtt_pattern);
|
|
if (!vs->vtt_basename)
|
|
return AVERROR(ENOMEM);
|
|
|
|
if (hls->subtitle_filename) {
|
|
ret = format_name(hls->subtitle_filename, &vs->vtt_m3u8_name, i, vs->varname);
|
|
if (ret < 0)
|
|
return ret;
|
|
} else {
|
|
vs->vtt_m3u8_name = av_asprintf("%s_vtt.m3u8", vs->m3u8_name);
|
|
if (!vs->vtt_m3u8_name)
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
if (p)
|
|
*p = '.';
|
|
}
|
|
|
|
if ((ret = hls_mux_init(s, vs)) < 0)
|
|
return ret;
|
|
|
|
if (hls->flags & HLS_APPEND_LIST) {
|
|
parse_playlist(s, vs->m3u8_name, vs);
|
|
vs->discontinuity = 1;
|
|
if (hls->init_time > 0) {
|
|
av_log(s, AV_LOG_WARNING, "append_list mode does not support hls_init_time,"
|
|
" hls_init_time value will have no effect\n");
|
|
hls->init_time = 0;
|
|
hls->recording_time = hls->time;
|
|
}
|
|
}
|
|
|
|
if ((ret = hls_start(s, vs)) < 0)
|
|
return ret;
|
|
vs->number++;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#define OFFSET(x) offsetof(HLSContext, x)
|
|
#define E AV_OPT_FLAG_ENCODING_PARAM
|
|
static const AVOption options[] = {
|
|
{"start_number", "set first number in the sequence", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX, E},
|
|
{"hls_time", "set segment length", OFFSET(time), AV_OPT_TYPE_DURATION, {.i64 = 2000000}, 0, INT64_MAX, E},
|
|
{"hls_init_time", "set segment length at init list", OFFSET(init_time), AV_OPT_TYPE_DURATION, {.i64 = 0}, 0, INT64_MAX, E},
|
|
{"hls_list_size", "set maximum number of playlist entries", OFFSET(max_nb_segments), AV_OPT_TYPE_INT, {.i64 = 5}, 0, INT_MAX, E},
|
|
{"hls_delete_threshold", "set number of unreferenced segments to keep before deleting", OFFSET(hls_delete_threshold), AV_OPT_TYPE_INT, {.i64 = 1}, 1, INT_MAX, E},
|
|
{"hls_ts_options","set hls mpegts list of options for the container format used for hls", OFFSET(format_options), AV_OPT_TYPE_DICT, {.str = NULL}, 0, 0, E},
|
|
{"hls_vtt_options","set hls vtt list of options for the container format used for hls", OFFSET(vtt_format_options_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"hls_allow_cache", "explicitly set whether the client MAY (1) or MUST NOT (0) cache media segments", OFFSET(allowcache), AV_OPT_TYPE_INT, {.i64 = -1}, INT_MIN, INT_MAX, E},
|
|
{"hls_base_url", "url to prepend to each playlist entry", OFFSET(baseurl), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"hls_segment_filename", "filename template for segment files", OFFSET(segment_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"hls_segment_size", "maximum size per segment file, (in bytes)", OFFSET(max_seg_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
|
|
{"hls_key_info_file", "file with key URI and key file path", OFFSET(key_info_file), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"hls_enc", "enable AES128 encryption support", OFFSET(encrypt), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, E},
|
|
{"hls_enc_key", "hex-coded 16 byte key to encrypt the segments", OFFSET(key), AV_OPT_TYPE_STRING, .flags = E},
|
|
{"hls_enc_key_url", "url to access the key to decrypt the segments", OFFSET(key_url), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"hls_enc_iv", "hex-coded 16 byte initialization vector", OFFSET(iv), AV_OPT_TYPE_STRING, .flags = E},
|
|
{"hls_subtitle_path", "set path of hls subtitles", OFFSET(subtitle_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"hls_segment_type", "set hls segment files type", OFFSET(segment_type), AV_OPT_TYPE_INT, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, SEGMENT_TYPE_FMP4, E, "segment_type"},
|
|
{"mpegts", "make segment file to mpegts files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, UINT_MAX, E, "segment_type"},
|
|
{"fmp4", "make segment file to fragment mp4 files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_FMP4 }, 0, UINT_MAX, E, "segment_type"},
|
|
{"hls_fmp4_init_filename", "set fragment mp4 file init filename", OFFSET(fmp4_init_filename), AV_OPT_TYPE_STRING, {.str = "init.mp4"}, 0, 0, E},
|
|
{"hls_fmp4_init_resend", "resend fragment mp4 init file after refresh m3u8 every time", OFFSET(resend_init_file), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
|
|
{"hls_flags", "set flags affecting HLS playlist and media file generation", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, 0, UINT_MAX, E, "flags"},
|
|
{"single_file", "generate a single media file indexed with byte ranges", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SINGLE_FILE }, 0, UINT_MAX, E, "flags"},
|
|
{"temp_file", "write segment and playlist to temporary file and rename when complete", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_TEMP_FILE }, 0, UINT_MAX, E, "flags"},
|
|
{"delete_segments", "delete segment files that are no longer part of the playlist", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DELETE_SEGMENTS }, 0, UINT_MAX, E, "flags"},
|
|
{"round_durations", "round durations in m3u8 to whole numbers", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_ROUND_DURATIONS }, 0, UINT_MAX, E, "flags"},
|
|
{"discont_start", "start the playlist with a discontinuity tag", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DISCONT_START }, 0, UINT_MAX, E, "flags"},
|
|
{"omit_endlist", "Do not append an endlist when ending stream", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_OMIT_ENDLIST }, 0, UINT_MAX, E, "flags"},
|
|
{"split_by_time", "split the hls segment by time which user set by hls_time", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SPLIT_BY_TIME }, 0, UINT_MAX, E, "flags"},
|
|
{"append_list", "append the new segments into old hls segment list", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_APPEND_LIST }, 0, UINT_MAX, E, "flags"},
|
|
{"program_date_time", "add EXT-X-PROGRAM-DATE-TIME", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PROGRAM_DATE_TIME }, 0, UINT_MAX, E, "flags"},
|
|
{"second_level_segment_index", "include segment index in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_INDEX }, 0, UINT_MAX, E, "flags"},
|
|
{"second_level_segment_duration", "include segment duration in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_DURATION }, 0, UINT_MAX, E, "flags"},
|
|
{"second_level_segment_size", "include segment size in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_SIZE }, 0, UINT_MAX, E, "flags"},
|
|
{"periodic_rekey", "reload keyinfo file periodically for re-keying", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PERIODIC_REKEY }, 0, UINT_MAX, E, "flags"},
|
|
{"independent_segments", "add EXT-X-INDEPENDENT-SEGMENTS, whenever applicable", 0, AV_OPT_TYPE_CONST, { .i64 = HLS_INDEPENDENT_SEGMENTS }, 0, UINT_MAX, E, "flags"},
|
|
{"iframes_only", "add EXT-X-I-FRAMES-ONLY, whenever applicable", 0, AV_OPT_TYPE_CONST, { .i64 = HLS_I_FRAMES_ONLY }, 0, UINT_MAX, E, "flags"},
|
|
{"strftime", "set filename expansion with strftime at segment creation", OFFSET(use_localtime), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
|
|
{"strftime_mkdir", "create last directory component in strftime-generated filename", OFFSET(use_localtime_mkdir), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
|
|
{"hls_playlist_type", "set the HLS playlist type", OFFSET(pl_type), AV_OPT_TYPE_INT, {.i64 = PLAYLIST_TYPE_NONE }, 0, PLAYLIST_TYPE_NB-1, E, "pl_type" },
|
|
{"event", "EVENT playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_EVENT }, INT_MIN, INT_MAX, E, "pl_type" },
|
|
{"vod", "VOD playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_VOD }, INT_MIN, INT_MAX, E, "pl_type" },
|
|
{"method", "set the HTTP method(default: PUT)", OFFSET(method), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"hls_start_number_source", "set source of first number in sequence", OFFSET(start_sequence_source_type), AV_OPT_TYPE_INT, {.i64 = HLS_START_SEQUENCE_AS_START_NUMBER }, 0, HLS_START_SEQUENCE_LAST-1, E, "start_sequence_source_type" },
|
|
{"generic", "start_number value (default)", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_START_NUMBER }, INT_MIN, INT_MAX, E, "start_sequence_source_type" },
|
|
{"epoch", "seconds since epoch", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH }, INT_MIN, INT_MAX, E, "start_sequence_source_type" },
|
|
{"epoch_us", "microseconds since epoch", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH }, INT_MIN, INT_MAX, E, "start_sequence_source_type" },
|
|
{"datetime", "current datetime as YYYYMMDDhhmmss", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_FORMATTED_DATETIME }, INT_MIN, INT_MAX, E, "start_sequence_source_type" },
|
|
{"http_user_agent", "override User-Agent field in HTTP header", OFFSET(user_agent), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"var_stream_map", "Variant stream map string", OFFSET(var_stream_map), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"cc_stream_map", "Closed captions stream map string", OFFSET(cc_stream_map), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"master_pl_name", "Create HLS master playlist with this name", OFFSET(master_pl_name), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"master_pl_publish_rate", "Publish master play list every after this many segment intervals", OFFSET(master_publish_rate), AV_OPT_TYPE_INT, {.i64 = 0}, 0, UINT_MAX, E},
|
|
{"http_persistent", "Use persistent HTTP connections", OFFSET(http_persistent), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
|
|
{"timeout", "set timeout for socket I/O operations", OFFSET(timeout), AV_OPT_TYPE_DURATION, { .i64 = -1 }, -1, INT_MAX, .flags = E },
|
|
{"ignore_io_errors", "Ignore IO errors for stable long-duration runs with network output", OFFSET(ignore_io_errors), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E },
|
|
{"headers", "set custom HTTP headers, can override built in default headers", OFFSET(headers), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, E },
|
|
{ NULL },
|
|
};
|
|
|
|
static const AVClass hls_class = {
|
|
.class_name = "hls muxer",
|
|
.item_name = av_default_item_name,
|
|
.option = options,
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
};
|
|
|
|
|
|
const AVOutputFormat ff_hls_muxer = {
|
|
.name = "hls",
|
|
.long_name = NULL_IF_CONFIG_SMALL("Apple HTTP Live Streaming"),
|
|
.extensions = "m3u8",
|
|
.priv_data_size = sizeof(HLSContext),
|
|
.audio_codec = AV_CODEC_ID_AAC,
|
|
.video_codec = AV_CODEC_ID_H264,
|
|
.subtitle_codec = AV_CODEC_ID_WEBVTT,
|
|
.flags = AVFMT_NOFILE | AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_NODIMENSIONS,
|
|
.init = hls_init,
|
|
.write_header = hls_write_header,
|
|
.write_packet = hls_write_packet,
|
|
.write_trailer = hls_write_trailer,
|
|
.deinit = hls_deinit,
|
|
.priv_class = &hls_class,
|
|
};
|