mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-21 10:55:51 +02:00
1898 lines
66 KiB
C
1898 lines
66 KiB
C
/*
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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 <float.h>
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#include <stdint.h>
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#include "ffmpeg.h"
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#include "ffmpeg_sched.h"
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#include "ffmpeg_utils.h"
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#include "libavutil/avassert.h"
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#include "libavutil/avstring.h"
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#include "libavutil/display.h"
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#include "libavutil/error.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/mem.h"
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#include "libavutil/opt.h"
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#include "libavutil/parseutils.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/time.h"
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#include "libavutil/timestamp.h"
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#include "libavcodec/bsf.h"
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#include "libavcodec/packet.h"
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#include "libavformat/avformat.h"
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typedef struct DemuxStream {
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InputStream ist;
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// name used for logging
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char log_name[32];
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int sch_idx_stream;
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int sch_idx_dec;
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double ts_scale;
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/* non zero if the packets must be decoded in 'raw_fifo', see DECODING_FOR_* */
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int decoding_needed;
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#define DECODING_FOR_OST 1
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#define DECODING_FOR_FILTER 2
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/* true if stream data should be discarded */
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int discard;
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// scheduler returned EOF for this stream
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int finished;
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int streamcopy_needed;
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int have_sub2video;
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int reinit_filters;
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int autorotate;
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int apply_cropping;
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int wrap_correction_done;
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int saw_first_ts;
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///< dts of the first packet read for this stream (in AV_TIME_BASE units)
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int64_t first_dts;
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/* predicted dts of the next packet read for this stream or (when there are
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* several frames in a packet) of the next frame in current packet (in AV_TIME_BASE units) */
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int64_t next_dts;
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///< dts of the last packet read for this stream (in AV_TIME_BASE units)
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int64_t dts;
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const AVCodecDescriptor *codec_desc;
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AVDictionary *decoder_opts;
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DecoderOpts dec_opts;
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char dec_name[16];
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// decoded media properties, as estimated by opening the decoder
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AVFrame *decoded_params;
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AVBSFContext *bsf;
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/* number of packets successfully read for this stream */
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uint64_t nb_packets;
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// combined size of all the packets read
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uint64_t data_size;
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} DemuxStream;
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typedef struct Demuxer {
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InputFile f;
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// name used for logging
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char log_name[32];
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int64_t wallclock_start;
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/**
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* Extra timestamp offset added by discontinuity handling.
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*/
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int64_t ts_offset_discont;
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int64_t last_ts;
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int64_t recording_time;
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int accurate_seek;
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/* number of times input stream should be looped */
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int loop;
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int have_audio_dec;
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/* duration of the looped segment of the input file */
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Timestamp duration;
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/* pts with the smallest/largest values ever seen */
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Timestamp min_pts;
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Timestamp max_pts;
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/* number of streams that the user was warned of */
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int nb_streams_warn;
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float readrate;
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double readrate_initial_burst;
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Scheduler *sch;
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AVPacket *pkt_heartbeat;
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int read_started;
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int nb_streams_used;
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int nb_streams_finished;
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} Demuxer;
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typedef struct DemuxThreadContext {
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// packet used for reading from the demuxer
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AVPacket *pkt_demux;
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// packet for reading from BSFs
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AVPacket *pkt_bsf;
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} DemuxThreadContext;
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static DemuxStream *ds_from_ist(InputStream *ist)
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{
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return (DemuxStream*)ist;
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}
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static Demuxer *demuxer_from_ifile(InputFile *f)
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{
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return (Demuxer*)f;
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}
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InputStream *ist_find_unused(enum AVMediaType type)
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{
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for (InputStream *ist = ist_iter(NULL); ist; ist = ist_iter(ist)) {
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DemuxStream *ds = ds_from_ist(ist);
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if (ist->par->codec_type == type && ds->discard &&
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ist->user_set_discard != AVDISCARD_ALL)
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return ist;
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}
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return NULL;
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}
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static void report_new_stream(Demuxer *d, const AVPacket *pkt)
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{
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const AVStream *st = d->f.ctx->streams[pkt->stream_index];
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if (pkt->stream_index < d->nb_streams_warn)
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return;
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av_log(d, AV_LOG_WARNING,
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"New %s stream with index %d at pos:%"PRId64" and DTS:%ss\n",
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av_get_media_type_string(st->codecpar->codec_type),
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pkt->stream_index, pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
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d->nb_streams_warn = pkt->stream_index + 1;
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}
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static int seek_to_start(Demuxer *d, Timestamp end_pts)
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{
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InputFile *ifile = &d->f;
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AVFormatContext *is = ifile->ctx;
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int ret;
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ret = avformat_seek_file(is, -1, INT64_MIN, is->start_time, is->start_time, 0);
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if (ret < 0)
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return ret;
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if (end_pts.ts != AV_NOPTS_VALUE &&
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(d->max_pts.ts == AV_NOPTS_VALUE ||
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av_compare_ts(d->max_pts.ts, d->max_pts.tb, end_pts.ts, end_pts.tb) < 0))
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d->max_pts = end_pts;
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if (d->max_pts.ts != AV_NOPTS_VALUE) {
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int64_t min_pts = d->min_pts.ts == AV_NOPTS_VALUE ? 0 : d->min_pts.ts;
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d->duration.ts = d->max_pts.ts - av_rescale_q(min_pts, d->min_pts.tb, d->max_pts.tb);
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}
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d->duration.tb = d->max_pts.tb;
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if (d->loop > 0)
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d->loop--;
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return ret;
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}
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static void ts_discontinuity_detect(Demuxer *d, InputStream *ist,
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AVPacket *pkt)
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{
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InputFile *ifile = &d->f;
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DemuxStream *ds = ds_from_ist(ist);
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const int fmt_is_discont = ifile->ctx->iformat->flags & AVFMT_TS_DISCONT;
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int disable_discontinuity_correction = copy_ts;
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int64_t pkt_dts = av_rescale_q_rnd(pkt->dts, pkt->time_base, AV_TIME_BASE_Q,
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AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX);
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if (copy_ts && ds->next_dts != AV_NOPTS_VALUE &&
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fmt_is_discont && ist->st->pts_wrap_bits < 60) {
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int64_t wrap_dts = av_rescale_q_rnd(pkt->dts + (1LL<<ist->st->pts_wrap_bits),
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pkt->time_base, AV_TIME_BASE_Q,
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AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
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if (FFABS(wrap_dts - ds->next_dts) < FFABS(pkt_dts - ds->next_dts)/10)
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disable_discontinuity_correction = 0;
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}
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if (ds->next_dts != AV_NOPTS_VALUE && !disable_discontinuity_correction) {
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int64_t delta = pkt_dts - ds->next_dts;
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if (fmt_is_discont) {
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if (FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE ||
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pkt_dts + AV_TIME_BASE/10 < ds->dts) {
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d->ts_offset_discont -= delta;
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av_log(ist, AV_LOG_WARNING,
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"timestamp discontinuity "
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"(stream id=%d): %"PRId64", new offset= %"PRId64"\n",
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ist->st->id, delta, d->ts_offset_discont);
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pkt->dts -= av_rescale_q(delta, AV_TIME_BASE_Q, pkt->time_base);
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if (pkt->pts != AV_NOPTS_VALUE)
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pkt->pts -= av_rescale_q(delta, AV_TIME_BASE_Q, pkt->time_base);
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}
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} else {
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if (FFABS(delta) > 1LL * dts_error_threshold * AV_TIME_BASE) {
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av_log(NULL, AV_LOG_WARNING,
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"DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n",
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pkt->dts, ds->next_dts, pkt->stream_index);
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pkt->dts = AV_NOPTS_VALUE;
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}
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if (pkt->pts != AV_NOPTS_VALUE){
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int64_t pkt_pts = av_rescale_q(pkt->pts, pkt->time_base, AV_TIME_BASE_Q);
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delta = pkt_pts - ds->next_dts;
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if (FFABS(delta) > 1LL * dts_error_threshold * AV_TIME_BASE) {
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av_log(NULL, AV_LOG_WARNING,
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"PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n",
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pkt->pts, ds->next_dts, pkt->stream_index);
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pkt->pts = AV_NOPTS_VALUE;
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}
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}
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}
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} else if (ds->next_dts == AV_NOPTS_VALUE && !copy_ts &&
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fmt_is_discont && d->last_ts != AV_NOPTS_VALUE) {
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int64_t delta = pkt_dts - d->last_ts;
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if (FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE) {
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d->ts_offset_discont -= delta;
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av_log(NULL, AV_LOG_DEBUG,
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"Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
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delta, d->ts_offset_discont);
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pkt->dts -= av_rescale_q(delta, AV_TIME_BASE_Q, pkt->time_base);
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if (pkt->pts != AV_NOPTS_VALUE)
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pkt->pts -= av_rescale_q(delta, AV_TIME_BASE_Q, pkt->time_base);
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}
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}
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d->last_ts = av_rescale_q(pkt->dts, pkt->time_base, AV_TIME_BASE_Q);
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}
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static void ts_discontinuity_process(Demuxer *d, InputStream *ist,
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AVPacket *pkt)
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{
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int64_t offset = av_rescale_q(d->ts_offset_discont, AV_TIME_BASE_Q,
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pkt->time_base);
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// apply previously-detected timestamp-discontinuity offset
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// (to all streams, not just audio/video)
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if (pkt->dts != AV_NOPTS_VALUE)
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pkt->dts += offset;
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if (pkt->pts != AV_NOPTS_VALUE)
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pkt->pts += offset;
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// detect timestamp discontinuities for audio/video
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if ((ist->par->codec_type == AVMEDIA_TYPE_VIDEO ||
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ist->par->codec_type == AVMEDIA_TYPE_AUDIO) &&
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pkt->dts != AV_NOPTS_VALUE)
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ts_discontinuity_detect(d, ist, pkt);
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}
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static int ist_dts_update(DemuxStream *ds, AVPacket *pkt, FrameData *fd)
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{
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InputStream *ist = &ds->ist;
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const AVCodecParameters *par = ist->par;
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if (!ds->saw_first_ts) {
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ds->first_dts =
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ds->dts = ist->st->avg_frame_rate.num ? - ist->par->video_delay * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
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if (pkt->pts != AV_NOPTS_VALUE) {
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ds->first_dts =
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ds->dts += av_rescale_q(pkt->pts, pkt->time_base, AV_TIME_BASE_Q);
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}
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ds->saw_first_ts = 1;
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}
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if (ds->next_dts == AV_NOPTS_VALUE)
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ds->next_dts = ds->dts;
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if (pkt->dts != AV_NOPTS_VALUE)
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ds->next_dts = ds->dts = av_rescale_q(pkt->dts, pkt->time_base, AV_TIME_BASE_Q);
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ds->dts = ds->next_dts;
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switch (par->codec_type) {
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case AVMEDIA_TYPE_AUDIO:
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av_assert1(pkt->duration >= 0);
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if (par->sample_rate) {
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ds->next_dts += ((int64_t)AV_TIME_BASE * par->frame_size) /
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par->sample_rate;
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} else {
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ds->next_dts += av_rescale_q(pkt->duration, pkt->time_base, AV_TIME_BASE_Q);
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}
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break;
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case AVMEDIA_TYPE_VIDEO:
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if (ist->framerate.num) {
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// TODO: Remove work-around for c99-to-c89 issue 7
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AVRational time_base_q = AV_TIME_BASE_Q;
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int64_t next_dts = av_rescale_q(ds->next_dts, time_base_q, av_inv_q(ist->framerate));
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ds->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
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} else if (pkt->duration) {
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ds->next_dts += av_rescale_q(pkt->duration, pkt->time_base, AV_TIME_BASE_Q);
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} else if (ist->par->framerate.num != 0) {
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AVRational field_rate = av_mul_q(ist->par->framerate,
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(AVRational){ 2, 1 });
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int fields = 2;
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if (ds->codec_desc &&
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(ds->codec_desc->props & AV_CODEC_PROP_FIELDS) &&
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av_stream_get_parser(ist->st))
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fields = 1 + av_stream_get_parser(ist->st)->repeat_pict;
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ds->next_dts += av_rescale_q(fields, av_inv_q(field_rate), AV_TIME_BASE_Q);
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}
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break;
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}
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fd->dts_est = ds->dts;
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return 0;
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}
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static int ts_fixup(Demuxer *d, AVPacket *pkt, FrameData *fd)
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{
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InputFile *ifile = &d->f;
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InputStream *ist = ifile->streams[pkt->stream_index];
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DemuxStream *ds = ds_from_ist(ist);
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const int64_t start_time = ifile->start_time_effective;
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int64_t duration;
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int ret;
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pkt->time_base = ist->st->time_base;
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#define SHOW_TS_DEBUG(tag_) \
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if (debug_ts) { \
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av_log(ist, AV_LOG_INFO, "%s -> ist_index:%d:%d type:%s " \
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"pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s duration:%s duration_time:%s\n", \
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tag_, ifile->index, pkt->stream_index, \
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av_get_media_type_string(ist->st->codecpar->codec_type), \
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av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &pkt->time_base), \
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av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &pkt->time_base), \
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av_ts2str(pkt->duration), av_ts2timestr(pkt->duration, &pkt->time_base)); \
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}
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SHOW_TS_DEBUG("demuxer");
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if (!ds->wrap_correction_done && start_time != AV_NOPTS_VALUE &&
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ist->st->pts_wrap_bits < 64) {
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int64_t stime, stime2;
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stime = av_rescale_q(start_time, AV_TIME_BASE_Q, pkt->time_base);
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stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
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ds->wrap_correction_done = 1;
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if(stime2 > stime && pkt->dts != AV_NOPTS_VALUE && pkt->dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
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pkt->dts -= 1ULL<<ist->st->pts_wrap_bits;
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ds->wrap_correction_done = 0;
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}
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if(stime2 > stime && pkt->pts != AV_NOPTS_VALUE && pkt->pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
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pkt->pts -= 1ULL<<ist->st->pts_wrap_bits;
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ds->wrap_correction_done = 0;
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}
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}
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if (pkt->dts != AV_NOPTS_VALUE)
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pkt->dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, pkt->time_base);
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if (pkt->pts != AV_NOPTS_VALUE)
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pkt->pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, pkt->time_base);
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if (pkt->pts != AV_NOPTS_VALUE)
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pkt->pts *= ds->ts_scale;
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if (pkt->dts != AV_NOPTS_VALUE)
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pkt->dts *= ds->ts_scale;
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duration = av_rescale_q(d->duration.ts, d->duration.tb, pkt->time_base);
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if (pkt->pts != AV_NOPTS_VALUE) {
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// audio decoders take precedence for estimating total file duration
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int64_t pkt_duration = d->have_audio_dec ? 0 : pkt->duration;
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pkt->pts += duration;
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// update max/min pts that will be used to compute total file duration
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// when using -stream_loop
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if (d->max_pts.ts == AV_NOPTS_VALUE ||
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av_compare_ts(d->max_pts.ts, d->max_pts.tb,
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pkt->pts + pkt_duration, pkt->time_base) < 0) {
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d->max_pts = (Timestamp){ .ts = pkt->pts + pkt_duration,
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.tb = pkt->time_base };
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}
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if (d->min_pts.ts == AV_NOPTS_VALUE ||
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av_compare_ts(d->min_pts.ts, d->min_pts.tb,
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pkt->pts, pkt->time_base) > 0) {
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d->min_pts = (Timestamp){ .ts = pkt->pts,
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.tb = pkt->time_base };
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}
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}
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if (pkt->dts != AV_NOPTS_VALUE)
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pkt->dts += duration;
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SHOW_TS_DEBUG("demuxer+tsfixup");
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// detect and try to correct for timestamp discontinuities
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ts_discontinuity_process(d, ist, pkt);
|
|
|
|
// update estimated/predicted dts
|
|
ret = ist_dts_update(ds, pkt, fd);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int input_packet_process(Demuxer *d, AVPacket *pkt, unsigned *send_flags)
|
|
{
|
|
InputFile *f = &d->f;
|
|
InputStream *ist = f->streams[pkt->stream_index];
|
|
DemuxStream *ds = ds_from_ist(ist);
|
|
FrameData *fd;
|
|
int ret = 0;
|
|
|
|
fd = packet_data(pkt);
|
|
if (!fd)
|
|
return AVERROR(ENOMEM);
|
|
|
|
ret = ts_fixup(d, pkt, fd);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (d->recording_time != INT64_MAX) {
|
|
int64_t start_time = 0;
|
|
if (copy_ts) {
|
|
start_time += f->start_time != AV_NOPTS_VALUE ? f->start_time : 0;
|
|
start_time += start_at_zero ? 0 : f->start_time_effective;
|
|
}
|
|
if (ds->dts >= d->recording_time + start_time)
|
|
*send_flags |= DEMUX_SEND_STREAMCOPY_EOF;
|
|
}
|
|
|
|
ds->data_size += pkt->size;
|
|
ds->nb_packets++;
|
|
|
|
fd->wallclock[LATENCY_PROBE_DEMUX] = av_gettime_relative();
|
|
|
|
if (debug_ts) {
|
|
av_log(NULL, AV_LOG_INFO, "demuxer+ffmpeg -> ist_index:%d:%d type:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s duration:%s duration_time:%s off:%s off_time:%s\n",
|
|
f->index, pkt->stream_index,
|
|
av_get_media_type_string(ist->par->codec_type),
|
|
av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &pkt->time_base),
|
|
av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &pkt->time_base),
|
|
av_ts2str(pkt->duration), av_ts2timestr(pkt->duration, &pkt->time_base),
|
|
av_ts2str(f->ts_offset), av_ts2timestr(f->ts_offset, &AV_TIME_BASE_Q));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void readrate_sleep(Demuxer *d)
|
|
{
|
|
InputFile *f = &d->f;
|
|
int64_t file_start = copy_ts * (
|
|
(f->start_time_effective != AV_NOPTS_VALUE ? f->start_time_effective * !start_at_zero : 0) +
|
|
(f->start_time != AV_NOPTS_VALUE ? f->start_time : 0)
|
|
);
|
|
int64_t burst_until = AV_TIME_BASE * d->readrate_initial_burst;
|
|
for (int i = 0; i < f->nb_streams; i++) {
|
|
InputStream *ist = f->streams[i];
|
|
DemuxStream *ds = ds_from_ist(ist);
|
|
int64_t stream_ts_offset, pts, now;
|
|
stream_ts_offset = FFMAX(ds->first_dts != AV_NOPTS_VALUE ? ds->first_dts : 0, file_start);
|
|
pts = av_rescale(ds->dts, 1000000, AV_TIME_BASE);
|
|
now = (av_gettime_relative() - d->wallclock_start) * d->readrate + stream_ts_offset;
|
|
if (pts - burst_until > now)
|
|
av_usleep(pts - burst_until - now);
|
|
}
|
|
}
|
|
|
|
static int do_send(Demuxer *d, DemuxStream *ds, AVPacket *pkt, unsigned flags,
|
|
const char *pkt_desc)
|
|
{
|
|
int ret;
|
|
|
|
pkt->stream_index = ds->sch_idx_stream;
|
|
|
|
ret = sch_demux_send(d->sch, d->f.index, pkt, flags);
|
|
if (ret == AVERROR_EOF) {
|
|
av_packet_unref(pkt);
|
|
|
|
av_log(ds, AV_LOG_VERBOSE, "All consumers of this stream are done\n");
|
|
ds->finished = 1;
|
|
|
|
if (++d->nb_streams_finished == d->nb_streams_used) {
|
|
av_log(d, AV_LOG_VERBOSE, "All consumers are done\n");
|
|
return AVERROR_EOF;
|
|
}
|
|
} else if (ret < 0) {
|
|
if (ret != AVERROR_EXIT)
|
|
av_log(d, AV_LOG_ERROR,
|
|
"Unable to send %s packet to consumers: %s\n",
|
|
pkt_desc, av_err2str(ret));
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int demux_send(Demuxer *d, DemuxThreadContext *dt, DemuxStream *ds,
|
|
AVPacket *pkt, unsigned flags)
|
|
{
|
|
InputFile *f = &d->f;
|
|
int ret;
|
|
|
|
// pkt can be NULL only when flushing BSFs
|
|
av_assert0(ds->bsf || pkt);
|
|
|
|
// send heartbeat for sub2video streams
|
|
if (d->pkt_heartbeat && pkt && pkt->pts != AV_NOPTS_VALUE) {
|
|
for (int i = 0; i < f->nb_streams; i++) {
|
|
DemuxStream *ds1 = ds_from_ist(f->streams[i]);
|
|
|
|
if (ds1->finished || !ds1->have_sub2video)
|
|
continue;
|
|
|
|
d->pkt_heartbeat->pts = pkt->pts;
|
|
d->pkt_heartbeat->time_base = pkt->time_base;
|
|
d->pkt_heartbeat->opaque = (void*)(intptr_t)PKT_OPAQUE_SUB_HEARTBEAT;
|
|
|
|
ret = do_send(d, ds1, d->pkt_heartbeat, 0, "heartbeat");
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if (ds->bsf) {
|
|
if (pkt)
|
|
av_packet_rescale_ts(pkt, pkt->time_base, ds->bsf->time_base_in);
|
|
|
|
ret = av_bsf_send_packet(ds->bsf, pkt);
|
|
if (ret < 0) {
|
|
if (pkt)
|
|
av_packet_unref(pkt);
|
|
av_log(ds, AV_LOG_ERROR, "Error submitting a packet for filtering: %s\n",
|
|
av_err2str(ret));
|
|
return ret;
|
|
}
|
|
|
|
while (1) {
|
|
ret = av_bsf_receive_packet(ds->bsf, dt->pkt_bsf);
|
|
if (ret == AVERROR(EAGAIN))
|
|
return 0;
|
|
else if (ret < 0) {
|
|
if (ret != AVERROR_EOF)
|
|
av_log(ds, AV_LOG_ERROR,
|
|
"Error applying bitstream filters to a packet: %s\n",
|
|
av_err2str(ret));
|
|
return ret;
|
|
}
|
|
|
|
dt->pkt_bsf->time_base = ds->bsf->time_base_out;
|
|
|
|
ret = do_send(d, ds, dt->pkt_bsf, 0, "filtered");
|
|
if (ret < 0) {
|
|
av_packet_unref(dt->pkt_bsf);
|
|
return ret;
|
|
}
|
|
}
|
|
} else {
|
|
ret = do_send(d, ds, pkt, flags, "demuxed");
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int demux_bsf_flush(Demuxer *d, DemuxThreadContext *dt)
|
|
{
|
|
InputFile *f = &d->f;
|
|
int ret;
|
|
|
|
for (unsigned i = 0; i < f->nb_streams; i++) {
|
|
DemuxStream *ds = ds_from_ist(f->streams[i]);
|
|
|
|
if (!ds->bsf)
|
|
continue;
|
|
|
|
ret = demux_send(d, dt, ds, NULL, 0);
|
|
ret = (ret == AVERROR_EOF) ? 0 : (ret < 0) ? ret : AVERROR_BUG;
|
|
if (ret < 0) {
|
|
av_log(ds, AV_LOG_ERROR, "Error flushing BSFs: %s\n",
|
|
av_err2str(ret));
|
|
return ret;
|
|
}
|
|
|
|
av_bsf_flush(ds->bsf);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void discard_unused_programs(InputFile *ifile)
|
|
{
|
|
for (int j = 0; j < ifile->ctx->nb_programs; j++) {
|
|
AVProgram *p = ifile->ctx->programs[j];
|
|
int discard = AVDISCARD_ALL;
|
|
|
|
for (int k = 0; k < p->nb_stream_indexes; k++) {
|
|
DemuxStream *ds = ds_from_ist(ifile->streams[p->stream_index[k]]);
|
|
|
|
if (!ds->discard) {
|
|
discard = AVDISCARD_DEFAULT;
|
|
break;
|
|
}
|
|
}
|
|
p->discard = discard;
|
|
}
|
|
}
|
|
|
|
static void thread_set_name(InputFile *f)
|
|
{
|
|
char name[16];
|
|
snprintf(name, sizeof(name), "dmx%d:%s", f->index, f->ctx->iformat->name);
|
|
ff_thread_setname(name);
|
|
}
|
|
|
|
static void demux_thread_uninit(DemuxThreadContext *dt)
|
|
{
|
|
av_packet_free(&dt->pkt_demux);
|
|
av_packet_free(&dt->pkt_bsf);
|
|
|
|
memset(dt, 0, sizeof(*dt));
|
|
}
|
|
|
|
static int demux_thread_init(DemuxThreadContext *dt)
|
|
{
|
|
memset(dt, 0, sizeof(*dt));
|
|
|
|
dt->pkt_demux = av_packet_alloc();
|
|
if (!dt->pkt_demux)
|
|
return AVERROR(ENOMEM);
|
|
|
|
dt->pkt_bsf = av_packet_alloc();
|
|
if (!dt->pkt_bsf)
|
|
return AVERROR(ENOMEM);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int input_thread(void *arg)
|
|
{
|
|
Demuxer *d = arg;
|
|
InputFile *f = &d->f;
|
|
|
|
DemuxThreadContext dt;
|
|
|
|
int ret = 0;
|
|
|
|
ret = demux_thread_init(&dt);
|
|
if (ret < 0)
|
|
goto finish;
|
|
|
|
thread_set_name(f);
|
|
|
|
discard_unused_programs(f);
|
|
|
|
d->read_started = 1;
|
|
d->wallclock_start = av_gettime_relative();
|
|
|
|
while (1) {
|
|
DemuxStream *ds;
|
|
unsigned send_flags = 0;
|
|
|
|
ret = av_read_frame(f->ctx, dt.pkt_demux);
|
|
|
|
if (ret == AVERROR(EAGAIN)) {
|
|
av_usleep(10000);
|
|
continue;
|
|
}
|
|
if (ret < 0) {
|
|
int ret_bsf;
|
|
|
|
if (ret == AVERROR_EOF)
|
|
av_log(d, AV_LOG_VERBOSE, "EOF while reading input\n");
|
|
else {
|
|
av_log(d, AV_LOG_ERROR, "Error during demuxing: %s\n",
|
|
av_err2str(ret));
|
|
ret = exit_on_error ? ret : 0;
|
|
}
|
|
|
|
ret_bsf = demux_bsf_flush(d, &dt);
|
|
ret = err_merge(ret == AVERROR_EOF ? 0 : ret, ret_bsf);
|
|
|
|
if (d->loop) {
|
|
/* signal looping to our consumers */
|
|
dt.pkt_demux->stream_index = -1;
|
|
ret = sch_demux_send(d->sch, f->index, dt.pkt_demux, 0);
|
|
if (ret >= 0)
|
|
ret = seek_to_start(d, (Timestamp){ .ts = dt.pkt_demux->pts,
|
|
.tb = dt.pkt_demux->time_base });
|
|
if (ret >= 0)
|
|
continue;
|
|
|
|
/* fallthrough to the error path */
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
if (do_pkt_dump) {
|
|
av_pkt_dump_log2(NULL, AV_LOG_INFO, dt.pkt_demux, do_hex_dump,
|
|
f->ctx->streams[dt.pkt_demux->stream_index]);
|
|
}
|
|
|
|
/* the following test is needed in case new streams appear
|
|
dynamically in stream : we ignore them */
|
|
ds = dt.pkt_demux->stream_index < f->nb_streams ?
|
|
ds_from_ist(f->streams[dt.pkt_demux->stream_index]) : NULL;
|
|
if (!ds || ds->discard || ds->finished) {
|
|
report_new_stream(d, dt.pkt_demux);
|
|
av_packet_unref(dt.pkt_demux);
|
|
continue;
|
|
}
|
|
|
|
if (dt.pkt_demux->flags & AV_PKT_FLAG_CORRUPT) {
|
|
av_log(d, exit_on_error ? AV_LOG_FATAL : AV_LOG_WARNING,
|
|
"corrupt input packet in stream %d\n",
|
|
dt.pkt_demux->stream_index);
|
|
if (exit_on_error) {
|
|
av_packet_unref(dt.pkt_demux);
|
|
ret = AVERROR_INVALIDDATA;
|
|
break;
|
|
}
|
|
}
|
|
|
|
ret = input_packet_process(d, dt.pkt_demux, &send_flags);
|
|
if (ret < 0)
|
|
break;
|
|
|
|
if (d->readrate)
|
|
readrate_sleep(d);
|
|
|
|
ret = demux_send(d, &dt, ds, dt.pkt_demux, send_flags);
|
|
if (ret < 0)
|
|
break;
|
|
}
|
|
|
|
// EOF/EXIT is normal termination
|
|
if (ret == AVERROR_EOF || ret == AVERROR_EXIT)
|
|
ret = 0;
|
|
|
|
finish:
|
|
demux_thread_uninit(&dt);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void demux_final_stats(Demuxer *d)
|
|
{
|
|
InputFile *f = &d->f;
|
|
uint64_t total_packets = 0, total_size = 0;
|
|
|
|
av_log(f, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
|
|
f->index, f->ctx->url);
|
|
|
|
for (int j = 0; j < f->nb_streams; j++) {
|
|
InputStream *ist = f->streams[j];
|
|
DemuxStream *ds = ds_from_ist(ist);
|
|
enum AVMediaType type = ist->par->codec_type;
|
|
|
|
if (ds->discard || type == AVMEDIA_TYPE_ATTACHMENT)
|
|
continue;
|
|
|
|
total_size += ds->data_size;
|
|
total_packets += ds->nb_packets;
|
|
|
|
av_log(f, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
|
|
f->index, j, av_get_media_type_string(type));
|
|
av_log(f, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
|
|
ds->nb_packets, ds->data_size);
|
|
|
|
if (ds->decoding_needed) {
|
|
av_log(f, AV_LOG_VERBOSE,
|
|
"%"PRIu64" frames decoded; %"PRIu64" decode errors",
|
|
ist->decoder->frames_decoded, ist->decoder->decode_errors);
|
|
if (type == AVMEDIA_TYPE_AUDIO)
|
|
av_log(f, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->decoder->samples_decoded);
|
|
av_log(f, AV_LOG_VERBOSE, "; ");
|
|
}
|
|
|
|
av_log(f, AV_LOG_VERBOSE, "\n");
|
|
}
|
|
|
|
av_log(f, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
|
|
total_packets, total_size);
|
|
}
|
|
|
|
static void ist_free(InputStream **pist)
|
|
{
|
|
InputStream *ist = *pist;
|
|
DemuxStream *ds;
|
|
|
|
if (!ist)
|
|
return;
|
|
ds = ds_from_ist(ist);
|
|
|
|
dec_free(&ist->decoder);
|
|
|
|
av_dict_free(&ds->decoder_opts);
|
|
av_freep(&ist->filters);
|
|
av_freep(&ds->dec_opts.hwaccel_device);
|
|
|
|
avcodec_parameters_free(&ist->par);
|
|
|
|
av_frame_free(&ds->decoded_params);
|
|
|
|
av_bsf_free(&ds->bsf);
|
|
|
|
av_freep(pist);
|
|
}
|
|
|
|
void ifile_close(InputFile **pf)
|
|
{
|
|
InputFile *f = *pf;
|
|
Demuxer *d = demuxer_from_ifile(f);
|
|
|
|
if (!f)
|
|
return;
|
|
|
|
if (d->read_started)
|
|
demux_final_stats(d);
|
|
|
|
for (int i = 0; i < f->nb_streams; i++)
|
|
ist_free(&f->streams[i]);
|
|
av_freep(&f->streams);
|
|
|
|
avformat_close_input(&f->ctx);
|
|
|
|
av_packet_free(&d->pkt_heartbeat);
|
|
|
|
av_freep(pf);
|
|
}
|
|
|
|
int ist_use(InputStream *ist, int decoding_needed,
|
|
const ViewSpecifier *vs, SchedulerNode *src)
|
|
{
|
|
Demuxer *d = demuxer_from_ifile(ist->file);
|
|
DemuxStream *ds = ds_from_ist(ist);
|
|
int ret;
|
|
|
|
if (ist->user_set_discard == AVDISCARD_ALL) {
|
|
av_log(ist, AV_LOG_ERROR, "Cannot %s a disabled input stream\n",
|
|
decoding_needed ? "decode" : "streamcopy");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (decoding_needed && !ist->dec) {
|
|
av_log(ist, AV_LOG_ERROR,
|
|
"Decoding requested, but no decoder found for: %s\n",
|
|
avcodec_get_name(ist->par->codec_id));
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (ds->sch_idx_stream < 0) {
|
|
ret = sch_add_demux_stream(d->sch, d->f.index);
|
|
if (ret < 0)
|
|
return ret;
|
|
ds->sch_idx_stream = ret;
|
|
}
|
|
|
|
if (ds->discard) {
|
|
ds->discard = 0;
|
|
d->nb_streams_used++;
|
|
}
|
|
|
|
ist->st->discard = ist->user_set_discard;
|
|
ds->decoding_needed |= decoding_needed;
|
|
ds->streamcopy_needed |= !decoding_needed;
|
|
|
|
if (decoding_needed && ds->sch_idx_dec < 0) {
|
|
int is_audio = ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO;
|
|
|
|
ds->dec_opts.flags |= (!!ist->fix_sub_duration * DECODER_FLAG_FIX_SUB_DURATION) |
|
|
(!!(d->f.ctx->iformat->flags & AVFMT_NOTIMESTAMPS) * DECODER_FLAG_TS_UNRELIABLE) |
|
|
(!!(d->loop && is_audio) * DECODER_FLAG_SEND_END_TS)
|
|
#if FFMPEG_OPT_TOP
|
|
| ((ist->top_field_first >= 0) * DECODER_FLAG_TOP_FIELD_FIRST)
|
|
#endif
|
|
;
|
|
|
|
if (ist->framerate.num) {
|
|
ds->dec_opts.flags |= DECODER_FLAG_FRAMERATE_FORCED;
|
|
ds->dec_opts.framerate = ist->framerate;
|
|
} else
|
|
ds->dec_opts.framerate = ist->st->avg_frame_rate;
|
|
|
|
if (ist->dec->id == AV_CODEC_ID_DVB_SUBTITLE &&
|
|
(ds->decoding_needed & DECODING_FOR_OST)) {
|
|
av_dict_set(&ds->decoder_opts, "compute_edt", "1", AV_DICT_DONT_OVERWRITE);
|
|
if (ds->decoding_needed & DECODING_FOR_FILTER)
|
|
av_log(ist, AV_LOG_WARNING,
|
|
"Warning using DVB subtitles for filtering and output at the "
|
|
"same time is not fully supported, also see -compute_edt [0|1]\n");
|
|
}
|
|
|
|
snprintf(ds->dec_name, sizeof(ds->dec_name), "%d:%d", ist->file->index, ist->index);
|
|
ds->dec_opts.name = ds->dec_name;
|
|
|
|
ds->dec_opts.codec = ist->dec;
|
|
ds->dec_opts.par = ist->par;
|
|
|
|
ds->dec_opts.log_parent = ist;
|
|
|
|
ds->decoded_params = av_frame_alloc();
|
|
if (!ds->decoded_params)
|
|
return AVERROR(ENOMEM);
|
|
|
|
ret = dec_init(&ist->decoder, d->sch,
|
|
&ds->decoder_opts, &ds->dec_opts, ds->decoded_params);
|
|
if (ret < 0)
|
|
return ret;
|
|
ds->sch_idx_dec = ret;
|
|
|
|
ret = sch_connect(d->sch, SCH_DSTREAM(d->f.index, ds->sch_idx_stream),
|
|
SCH_DEC_IN(ds->sch_idx_dec));
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
d->have_audio_dec |= is_audio;
|
|
}
|
|
|
|
if (decoding_needed && ist->par->codec_type == AVMEDIA_TYPE_VIDEO) {
|
|
ret = dec_request_view(ist->decoder, vs, src);
|
|
if (ret < 0)
|
|
return ret;
|
|
} else {
|
|
*src = decoding_needed ?
|
|
SCH_DEC_OUT(ds->sch_idx_dec, 0) :
|
|
SCH_DSTREAM(d->f.index, ds->sch_idx_stream);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ist_filter_add(InputStream *ist, InputFilter *ifilter, int is_simple,
|
|
const ViewSpecifier *vs, InputFilterOptions *opts,
|
|
SchedulerNode *src)
|
|
{
|
|
Demuxer *d = demuxer_from_ifile(ist->file);
|
|
DemuxStream *ds = ds_from_ist(ist);
|
|
int64_t tsoffset = 0;
|
|
int ret;
|
|
|
|
ret = ist_use(ist, is_simple ? DECODING_FOR_OST : DECODING_FOR_FILTER,
|
|
vs, src);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = GROW_ARRAY(ist->filters, ist->nb_filters);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ist->filters[ist->nb_filters - 1] = ifilter;
|
|
|
|
if (ist->par->codec_type == AVMEDIA_TYPE_VIDEO) {
|
|
const AVPacketSideData *sd = av_packet_side_data_get(ist->par->coded_side_data,
|
|
ist->par->nb_coded_side_data,
|
|
AV_PKT_DATA_FRAME_CROPPING);
|
|
if (ist->framerate.num > 0 && ist->framerate.den > 0) {
|
|
opts->framerate = ist->framerate;
|
|
opts->flags |= IFILTER_FLAG_CFR;
|
|
} else
|
|
opts->framerate = av_guess_frame_rate(d->f.ctx, ist->st, NULL);
|
|
if (sd && sd->size >= sizeof(uint32_t) * 4) {
|
|
opts->crop_top = AV_RL32(sd->data + 0);
|
|
opts->crop_bottom = AV_RL32(sd->data + 4);
|
|
opts->crop_left = AV_RL32(sd->data + 8);
|
|
opts->crop_right = AV_RL32(sd->data + 12);
|
|
if (ds->apply_cropping && ds->apply_cropping != CROP_CODEC &&
|
|
(opts->crop_top | opts->crop_bottom | opts->crop_left | opts->crop_right))
|
|
opts->flags |= IFILTER_FLAG_CROP;
|
|
}
|
|
} else if (ist->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
|
|
/* Compute the size of the canvas for the subtitles stream.
|
|
If the subtitles codecpar has set a size, use it. Otherwise use the
|
|
maximum dimensions of the video streams in the same file. */
|
|
opts->sub2video_width = ist->par->width;
|
|
opts->sub2video_height = ist->par->height;
|
|
if (!(opts->sub2video_width && opts->sub2video_height)) {
|
|
for (int j = 0; j < d->f.nb_streams; j++) {
|
|
AVCodecParameters *par1 = d->f.streams[j]->par;
|
|
if (par1->codec_type == AVMEDIA_TYPE_VIDEO) {
|
|
opts->sub2video_width = FFMAX(opts->sub2video_width, par1->width);
|
|
opts->sub2video_height = FFMAX(opts->sub2video_height, par1->height);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!(opts->sub2video_width && opts->sub2video_height)) {
|
|
opts->sub2video_width = FFMAX(opts->sub2video_width, 720);
|
|
opts->sub2video_height = FFMAX(opts->sub2video_height, 576);
|
|
}
|
|
|
|
if (!d->pkt_heartbeat) {
|
|
d->pkt_heartbeat = av_packet_alloc();
|
|
if (!d->pkt_heartbeat)
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
ds->have_sub2video = 1;
|
|
}
|
|
|
|
ret = av_frame_copy_props(opts->fallback, ds->decoded_params);
|
|
if (ret < 0)
|
|
return ret;
|
|
opts->fallback->format = ds->decoded_params->format;
|
|
opts->fallback->width = ds->decoded_params->width;
|
|
opts->fallback->height = ds->decoded_params->height;
|
|
|
|
ret = av_channel_layout_copy(&opts->fallback->ch_layout, &ds->decoded_params->ch_layout);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (copy_ts) {
|
|
tsoffset = d->f.start_time == AV_NOPTS_VALUE ? 0 : d->f.start_time;
|
|
if (!start_at_zero && d->f.ctx->start_time != AV_NOPTS_VALUE)
|
|
tsoffset += d->f.ctx->start_time;
|
|
}
|
|
opts->trim_start_us = ((d->f.start_time == AV_NOPTS_VALUE) || !d->accurate_seek) ?
|
|
AV_NOPTS_VALUE : tsoffset;
|
|
opts->trim_end_us = d->recording_time;
|
|
|
|
opts->name = av_strdup(ds->dec_name);
|
|
if (!opts->name)
|
|
return AVERROR(ENOMEM);
|
|
|
|
opts->flags |= IFILTER_FLAG_AUTOROTATE * !!(ds->autorotate) |
|
|
IFILTER_FLAG_REINIT * !!(ds->reinit_filters);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int choose_decoder(const OptionsContext *o, void *logctx,
|
|
AVFormatContext *s, AVStream *st,
|
|
enum HWAccelID hwaccel_id, enum AVHWDeviceType hwaccel_device_type,
|
|
const AVCodec **pcodec)
|
|
|
|
{
|
|
const char *codec_name = NULL;
|
|
|
|
opt_match_per_stream_str(logctx, &o->codec_names, s, st, &codec_name);
|
|
if (codec_name) {
|
|
int ret = find_codec(NULL, codec_name, st->codecpar->codec_type, 0, pcodec);
|
|
if (ret < 0)
|
|
return ret;
|
|
st->codecpar->codec_id = (*pcodec)->id;
|
|
if (recast_media && st->codecpar->codec_type != (*pcodec)->type)
|
|
st->codecpar->codec_type = (*pcodec)->type;
|
|
return 0;
|
|
} else {
|
|
if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
|
|
hwaccel_id == HWACCEL_GENERIC &&
|
|
hwaccel_device_type != AV_HWDEVICE_TYPE_NONE) {
|
|
const AVCodec *c;
|
|
void *i = NULL;
|
|
|
|
while ((c = av_codec_iterate(&i))) {
|
|
const AVCodecHWConfig *config;
|
|
|
|
if (c->id != st->codecpar->codec_id ||
|
|
!av_codec_is_decoder(c))
|
|
continue;
|
|
|
|
for (int j = 0; config = avcodec_get_hw_config(c, j); j++) {
|
|
if (config->device_type == hwaccel_device_type) {
|
|
av_log(NULL, AV_LOG_VERBOSE, "Selecting decoder '%s' because of requested hwaccel method %s\n",
|
|
c->name, av_hwdevice_get_type_name(hwaccel_device_type));
|
|
*pcodec = c;
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
*pcodec = avcodec_find_decoder(st->codecpar->codec_id);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int guess_input_channel_layout(InputStream *ist, AVCodecParameters *par,
|
|
int guess_layout_max)
|
|
{
|
|
if (par->ch_layout.order == AV_CHANNEL_ORDER_UNSPEC) {
|
|
char layout_name[256];
|
|
|
|
if (par->ch_layout.nb_channels > guess_layout_max)
|
|
return 0;
|
|
av_channel_layout_default(&par->ch_layout, par->ch_layout.nb_channels);
|
|
if (par->ch_layout.order == AV_CHANNEL_ORDER_UNSPEC)
|
|
return 0;
|
|
av_channel_layout_describe(&par->ch_layout, layout_name, sizeof(layout_name));
|
|
av_log(ist, AV_LOG_WARNING, "Guessed Channel Layout: %s\n", layout_name);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int add_display_matrix_to_stream(const OptionsContext *o,
|
|
AVFormatContext *ctx, InputStream *ist)
|
|
{
|
|
AVStream *st = ist->st;
|
|
AVPacketSideData *sd;
|
|
double rotation = DBL_MAX;
|
|
int hflip = -1, vflip = -1;
|
|
int hflip_set = 0, vflip_set = 0, rotation_set = 0;
|
|
int32_t *buf;
|
|
|
|
opt_match_per_stream_dbl(ist, &o->display_rotations, ctx, st, &rotation);
|
|
opt_match_per_stream_int(ist, &o->display_hflips, ctx, st, &hflip);
|
|
opt_match_per_stream_int(ist, &o->display_vflips, ctx, st, &vflip);
|
|
|
|
rotation_set = rotation != DBL_MAX;
|
|
hflip_set = hflip != -1;
|
|
vflip_set = vflip != -1;
|
|
|
|
if (!rotation_set && !hflip_set && !vflip_set)
|
|
return 0;
|
|
|
|
sd = av_packet_side_data_new(&st->codecpar->coded_side_data,
|
|
&st->codecpar->nb_coded_side_data,
|
|
AV_PKT_DATA_DISPLAYMATRIX,
|
|
sizeof(int32_t) * 9, 0);
|
|
if (!sd) {
|
|
av_log(ist, AV_LOG_FATAL, "Failed to generate a display matrix!\n");
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
buf = (int32_t *)sd->data;
|
|
av_display_rotation_set(buf,
|
|
rotation_set ? -(rotation) : -0.0f);
|
|
|
|
av_display_matrix_flip(buf,
|
|
hflip_set ? hflip : 0,
|
|
vflip_set ? vflip : 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const char *input_stream_item_name(void *obj)
|
|
{
|
|
const DemuxStream *ds = obj;
|
|
|
|
return ds->log_name;
|
|
}
|
|
|
|
static const AVClass input_stream_class = {
|
|
.class_name = "InputStream",
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
.item_name = input_stream_item_name,
|
|
.category = AV_CLASS_CATEGORY_DEMUXER,
|
|
};
|
|
|
|
static DemuxStream *demux_stream_alloc(Demuxer *d, AVStream *st)
|
|
{
|
|
const char *type_str = av_get_media_type_string(st->codecpar->codec_type);
|
|
InputFile *f = &d->f;
|
|
DemuxStream *ds;
|
|
|
|
ds = allocate_array_elem(&f->streams, sizeof(*ds), &f->nb_streams);
|
|
if (!ds)
|
|
return NULL;
|
|
|
|
ds->sch_idx_stream = -1;
|
|
ds->sch_idx_dec = -1;
|
|
|
|
ds->ist.st = st;
|
|
ds->ist.file = f;
|
|
ds->ist.index = st->index;
|
|
ds->ist.class = &input_stream_class;
|
|
|
|
snprintf(ds->log_name, sizeof(ds->log_name), "%cist#%d:%d/%s",
|
|
type_str ? *type_str : '?', d->f.index, st->index,
|
|
avcodec_get_name(st->codecpar->codec_id));
|
|
|
|
return ds;
|
|
}
|
|
|
|
static int ist_add(const OptionsContext *o, Demuxer *d, AVStream *st, AVDictionary **opts_used)
|
|
{
|
|
AVFormatContext *ic = d->f.ctx;
|
|
AVCodecParameters *par = st->codecpar;
|
|
DemuxStream *ds;
|
|
InputStream *ist;
|
|
const char *framerate = NULL, *hwaccel_device = NULL;
|
|
const char *hwaccel = NULL;
|
|
const char *apply_cropping = NULL;
|
|
const char *hwaccel_output_format = NULL;
|
|
const char *codec_tag = NULL;
|
|
const char *bsfs = NULL;
|
|
char *next;
|
|
const char *discard_str = NULL;
|
|
int ret;
|
|
|
|
ds = demux_stream_alloc(d, st);
|
|
if (!ds)
|
|
return AVERROR(ENOMEM);
|
|
|
|
ist = &ds->ist;
|
|
|
|
ds->discard = 1;
|
|
st->discard = AVDISCARD_ALL;
|
|
ds->first_dts = AV_NOPTS_VALUE;
|
|
ds->next_dts = AV_NOPTS_VALUE;
|
|
|
|
ds->dec_opts.time_base = st->time_base;
|
|
|
|
ds->ts_scale = 1.0;
|
|
opt_match_per_stream_dbl(ist, &o->ts_scale, ic, st, &ds->ts_scale);
|
|
|
|
ds->autorotate = 1;
|
|
opt_match_per_stream_int(ist, &o->autorotate, ic, st, &ds->autorotate);
|
|
|
|
ds->apply_cropping = CROP_ALL;
|
|
opt_match_per_stream_str(ist, &o->apply_cropping, ic, st, &apply_cropping);
|
|
if (apply_cropping) {
|
|
const AVOption opts[] = {
|
|
{ "apply_cropping", NULL, 0, AV_OPT_TYPE_INT,
|
|
{ .i64 = CROP_ALL }, CROP_DISABLED, CROP_CONTAINER, AV_OPT_FLAG_DECODING_PARAM, .unit = "apply_cropping" },
|
|
{ "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CROP_DISABLED }, .unit = "apply_cropping" },
|
|
{ "all", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CROP_ALL }, .unit = "apply_cropping" },
|
|
{ "codec", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CROP_CODEC }, .unit = "apply_cropping" },
|
|
{ "container", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CROP_CONTAINER }, .unit = "apply_cropping" },
|
|
{ NULL },
|
|
};
|
|
const AVClass class = {
|
|
.class_name = "apply_cropping",
|
|
.item_name = av_default_item_name,
|
|
.option = opts,
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
};
|
|
const AVClass *pclass = &class;
|
|
|
|
ret = av_opt_eval_int(&pclass, opts, apply_cropping, &ds->apply_cropping);
|
|
if (ret < 0) {
|
|
av_log(ist, AV_LOG_ERROR, "Invalid apply_cropping value '%s'.\n", apply_cropping);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
opt_match_per_stream_str(ist, &o->codec_tags, ic, st, &codec_tag);
|
|
if (codec_tag) {
|
|
uint32_t tag = strtol(codec_tag, &next, 0);
|
|
if (*next) {
|
|
uint8_t buf[4] = { 0 };
|
|
memcpy(buf, codec_tag, FFMIN(sizeof(buf), strlen(codec_tag)));
|
|
tag = AV_RL32(buf);
|
|
}
|
|
|
|
st->codecpar->codec_tag = tag;
|
|
}
|
|
|
|
if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
|
|
ret = add_display_matrix_to_stream(o, ic, ist);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
opt_match_per_stream_str(ist, &o->hwaccels, ic, st, &hwaccel);
|
|
opt_match_per_stream_str(ist, &o->hwaccel_output_formats, ic, st,
|
|
&hwaccel_output_format);
|
|
if (!hwaccel_output_format && hwaccel && !strcmp(hwaccel, "cuvid")) {
|
|
av_log(ist, AV_LOG_WARNING,
|
|
"WARNING: defaulting hwaccel_output_format to cuda for compatibility "
|
|
"with old commandlines. This behaviour is DEPRECATED and will be removed "
|
|
"in the future. Please explicitly set \"-hwaccel_output_format cuda\".\n");
|
|
ds->dec_opts.hwaccel_output_format = AV_PIX_FMT_CUDA;
|
|
} else if (!hwaccel_output_format && hwaccel && !strcmp(hwaccel, "qsv")) {
|
|
av_log(ist, AV_LOG_WARNING,
|
|
"WARNING: defaulting hwaccel_output_format to qsv for compatibility "
|
|
"with old commandlines. This behaviour is DEPRECATED and will be removed "
|
|
"in the future. Please explicitly set \"-hwaccel_output_format qsv\".\n");
|
|
ds->dec_opts.hwaccel_output_format = AV_PIX_FMT_QSV;
|
|
} else if (!hwaccel_output_format && hwaccel && !strcmp(hwaccel, "mediacodec")) {
|
|
// There is no real AVHWFrameContext implementation. Set
|
|
// hwaccel_output_format to avoid av_hwframe_transfer_data error.
|
|
ds->dec_opts.hwaccel_output_format = AV_PIX_FMT_MEDIACODEC;
|
|
} else if (hwaccel_output_format) {
|
|
ds->dec_opts.hwaccel_output_format = av_get_pix_fmt(hwaccel_output_format);
|
|
if (ds->dec_opts.hwaccel_output_format == AV_PIX_FMT_NONE) {
|
|
av_log(ist, AV_LOG_FATAL, "Unrecognised hwaccel output "
|
|
"format: %s", hwaccel_output_format);
|
|
}
|
|
} else {
|
|
ds->dec_opts.hwaccel_output_format = AV_PIX_FMT_NONE;
|
|
}
|
|
|
|
if (hwaccel) {
|
|
// The NVDEC hwaccels use a CUDA device, so remap the name here.
|
|
if (!strcmp(hwaccel, "nvdec") || !strcmp(hwaccel, "cuvid"))
|
|
hwaccel = "cuda";
|
|
|
|
if (!strcmp(hwaccel, "none"))
|
|
ds->dec_opts.hwaccel_id = HWACCEL_NONE;
|
|
else if (!strcmp(hwaccel, "auto"))
|
|
ds->dec_opts.hwaccel_id = HWACCEL_AUTO;
|
|
else {
|
|
enum AVHWDeviceType type = av_hwdevice_find_type_by_name(hwaccel);
|
|
if (type != AV_HWDEVICE_TYPE_NONE) {
|
|
ds->dec_opts.hwaccel_id = HWACCEL_GENERIC;
|
|
ds->dec_opts.hwaccel_device_type = type;
|
|
}
|
|
|
|
if (!ds->dec_opts.hwaccel_id) {
|
|
av_log(ist, AV_LOG_FATAL, "Unrecognized hwaccel: %s.\n",
|
|
hwaccel);
|
|
av_log(ist, AV_LOG_FATAL, "Supported hwaccels: ");
|
|
type = AV_HWDEVICE_TYPE_NONE;
|
|
while ((type = av_hwdevice_iterate_types(type)) !=
|
|
AV_HWDEVICE_TYPE_NONE)
|
|
av_log(ist, AV_LOG_FATAL, "%s ",
|
|
av_hwdevice_get_type_name(type));
|
|
av_log(ist, AV_LOG_FATAL, "\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
}
|
|
}
|
|
|
|
opt_match_per_stream_str(ist, &o->hwaccel_devices, ic, st, &hwaccel_device);
|
|
if (hwaccel_device) {
|
|
ds->dec_opts.hwaccel_device = av_strdup(hwaccel_device);
|
|
if (!ds->dec_opts.hwaccel_device)
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
}
|
|
|
|
ret = choose_decoder(o, ist, ic, st, ds->dec_opts.hwaccel_id,
|
|
ds->dec_opts.hwaccel_device_type, &ist->dec);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (ist->dec) {
|
|
ret = filter_codec_opts(o->g->codec_opts, ist->st->codecpar->codec_id,
|
|
ic, st, ist->dec, &ds->decoder_opts, opts_used);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
ds->reinit_filters = -1;
|
|
opt_match_per_stream_int(ist, &o->reinit_filters, ic, st, &ds->reinit_filters);
|
|
|
|
ist->user_set_discard = AVDISCARD_NONE;
|
|
|
|
if ((o->video_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) ||
|
|
(o->audio_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) ||
|
|
(o->subtitle_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) ||
|
|
(o->data_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_DATA))
|
|
ist->user_set_discard = AVDISCARD_ALL;
|
|
|
|
opt_match_per_stream_str(ist, &o->discard, ic, st, &discard_str);
|
|
if (discard_str) {
|
|
ret = av_opt_set(ist->st, "discard", discard_str, 0);
|
|
if (ret < 0) {
|
|
av_log(ist, AV_LOG_ERROR, "Error parsing discard %s.\n", discard_str);
|
|
return ret;
|
|
}
|
|
ist->user_set_discard = ist->st->discard;
|
|
}
|
|
|
|
ds->dec_opts.flags |= DECODER_FLAG_BITEXACT * !!o->bitexact;
|
|
|
|
av_dict_set_int(&ds->decoder_opts, "apply_cropping",
|
|
ds->apply_cropping && ds->apply_cropping != CROP_CONTAINER, 0);
|
|
|
|
/* Attached pics are sparse, therefore we would not want to delay their decoding
|
|
* till EOF. */
|
|
if (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC)
|
|
av_dict_set(&ds->decoder_opts, "thread_type", "-frame", 0);
|
|
|
|
switch (par->codec_type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
opt_match_per_stream_str(ist, &o->frame_rates, ic, st, &framerate);
|
|
if (framerate) {
|
|
ret = av_parse_video_rate(&ist->framerate, framerate);
|
|
if (ret < 0) {
|
|
av_log(ist, AV_LOG_ERROR, "Error parsing framerate %s.\n",
|
|
framerate);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
#if FFMPEG_OPT_TOP
|
|
ist->top_field_first = -1;
|
|
opt_match_per_stream_int(ist, &o->top_field_first, ic, st, &ist->top_field_first);
|
|
#endif
|
|
|
|
break;
|
|
case AVMEDIA_TYPE_AUDIO: {
|
|
const char *ch_layout_str = NULL;
|
|
|
|
opt_match_per_stream_str(ist, &o->audio_ch_layouts, ic, st, &ch_layout_str);
|
|
if (ch_layout_str) {
|
|
AVChannelLayout ch_layout;
|
|
ret = av_channel_layout_from_string(&ch_layout, ch_layout_str);
|
|
if (ret < 0) {
|
|
av_log(ist, AV_LOG_ERROR, "Error parsing channel layout %s.\n", ch_layout_str);
|
|
return ret;
|
|
}
|
|
if (par->ch_layout.nb_channels <= 0 || par->ch_layout.nb_channels == ch_layout.nb_channels) {
|
|
av_channel_layout_uninit(&par->ch_layout);
|
|
par->ch_layout = ch_layout;
|
|
} else {
|
|
av_log(ist, AV_LOG_ERROR,
|
|
"Specified channel layout '%s' has %d channels, but input has %d channels.\n",
|
|
ch_layout_str, ch_layout.nb_channels, par->ch_layout.nb_channels);
|
|
av_channel_layout_uninit(&ch_layout);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
} else {
|
|
int guess_layout_max = INT_MAX;
|
|
opt_match_per_stream_int(ist, &o->guess_layout_max, ic, st, &guess_layout_max);
|
|
guess_input_channel_layout(ist, par, guess_layout_max);
|
|
}
|
|
break;
|
|
}
|
|
case AVMEDIA_TYPE_DATA:
|
|
case AVMEDIA_TYPE_SUBTITLE: {
|
|
const char *canvas_size = NULL;
|
|
|
|
opt_match_per_stream_int(ist, &o->fix_sub_duration, ic, st, &ist->fix_sub_duration);
|
|
opt_match_per_stream_str(ist, &o->canvas_sizes, ic, st, &canvas_size);
|
|
if (canvas_size) {
|
|
ret = av_parse_video_size(&par->width, &par->height,
|
|
canvas_size);
|
|
if (ret < 0) {
|
|
av_log(ist, AV_LOG_FATAL, "Invalid canvas size: %s.\n", canvas_size);
|
|
return ret;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case AVMEDIA_TYPE_ATTACHMENT:
|
|
case AVMEDIA_TYPE_UNKNOWN:
|
|
break;
|
|
default: av_assert0(0);
|
|
}
|
|
|
|
ist->par = avcodec_parameters_alloc();
|
|
if (!ist->par)
|
|
return AVERROR(ENOMEM);
|
|
|
|
ret = avcodec_parameters_copy(ist->par, par);
|
|
if (ret < 0) {
|
|
av_log(ist, AV_LOG_ERROR, "Error exporting stream parameters.\n");
|
|
return ret;
|
|
}
|
|
|
|
if (ist->st->sample_aspect_ratio.num)
|
|
ist->par->sample_aspect_ratio = ist->st->sample_aspect_ratio;
|
|
|
|
opt_match_per_stream_str(ist, &o->bitstream_filters, ic, st, &bsfs);
|
|
if (bsfs) {
|
|
ret = av_bsf_list_parse_str(bsfs, &ds->bsf);
|
|
if (ret < 0) {
|
|
av_log(ist, AV_LOG_ERROR,
|
|
"Error parsing bitstream filter sequence '%s': %s\n",
|
|
bsfs, av_err2str(ret));
|
|
return ret;
|
|
}
|
|
|
|
ret = avcodec_parameters_copy(ds->bsf->par_in, ist->par);
|
|
if (ret < 0)
|
|
return ret;
|
|
ds->bsf->time_base_in = ist->st->time_base;
|
|
|
|
ret = av_bsf_init(ds->bsf);
|
|
if (ret < 0) {
|
|
av_log(ist, AV_LOG_ERROR, "Error initializing bitstream filters: %s\n",
|
|
av_err2str(ret));
|
|
return ret;
|
|
}
|
|
|
|
ret = avcodec_parameters_copy(ist->par, ds->bsf->par_out);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
ds->codec_desc = avcodec_descriptor_get(ist->par->codec_id);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dump_attachment(InputStream *ist, const char *filename)
|
|
{
|
|
AVStream *st = ist->st;
|
|
int ret;
|
|
AVIOContext *out = NULL;
|
|
const AVDictionaryEntry *e;
|
|
|
|
if (!st->codecpar->extradata_size) {
|
|
av_log(ist, AV_LOG_WARNING, "No extradata to dump.\n");
|
|
return 0;
|
|
}
|
|
if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
|
|
filename = e->value;
|
|
if (!*filename) {
|
|
av_log(ist, AV_LOG_FATAL, "No filename specified and no 'filename' tag");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
ret = assert_file_overwrite(filename);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
|
|
av_log(ist, AV_LOG_FATAL, "Could not open file %s for writing.\n",
|
|
filename);
|
|
return ret;
|
|
}
|
|
|
|
avio_write(out, st->codecpar->extradata, st->codecpar->extradata_size);
|
|
ret = avio_close(out);
|
|
|
|
if (ret >= 0)
|
|
av_log(ist, AV_LOG_INFO, "Wrote attachment (%d bytes) to '%s'\n",
|
|
st->codecpar->extradata_size, filename);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const char *input_file_item_name(void *obj)
|
|
{
|
|
const Demuxer *d = obj;
|
|
|
|
return d->log_name;
|
|
}
|
|
|
|
static const AVClass input_file_class = {
|
|
.class_name = "InputFile",
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
.item_name = input_file_item_name,
|
|
.category = AV_CLASS_CATEGORY_DEMUXER,
|
|
};
|
|
|
|
static Demuxer *demux_alloc(void)
|
|
{
|
|
Demuxer *d = allocate_array_elem(&input_files, sizeof(*d), &nb_input_files);
|
|
|
|
if (!d)
|
|
return NULL;
|
|
|
|
d->f.class = &input_file_class;
|
|
d->f.index = nb_input_files - 1;
|
|
|
|
snprintf(d->log_name, sizeof(d->log_name), "in#%d", d->f.index);
|
|
|
|
return d;
|
|
}
|
|
|
|
int ifile_open(const OptionsContext *o, const char *filename, Scheduler *sch)
|
|
{
|
|
Demuxer *d;
|
|
InputFile *f;
|
|
AVFormatContext *ic;
|
|
const AVInputFormat *file_iformat = NULL;
|
|
int err, ret = 0;
|
|
int64_t timestamp;
|
|
AVDictionary *opts_used = NULL;
|
|
const char* video_codec_name = NULL;
|
|
const char* audio_codec_name = NULL;
|
|
const char* subtitle_codec_name = NULL;
|
|
const char* data_codec_name = NULL;
|
|
int scan_all_pmts_set = 0;
|
|
|
|
int64_t start_time = o->start_time;
|
|
int64_t start_time_eof = o->start_time_eof;
|
|
int64_t stop_time = o->stop_time;
|
|
int64_t recording_time = o->recording_time;
|
|
|
|
d = demux_alloc();
|
|
if (!d)
|
|
return AVERROR(ENOMEM);
|
|
|
|
f = &d->f;
|
|
|
|
ret = sch_add_demux(sch, input_thread, d);
|
|
if (ret < 0)
|
|
return ret;
|
|
d->sch = sch;
|
|
|
|
if (stop_time != INT64_MAX && recording_time != INT64_MAX) {
|
|
stop_time = INT64_MAX;
|
|
av_log(d, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
|
|
}
|
|
|
|
if (stop_time != INT64_MAX && recording_time == INT64_MAX) {
|
|
int64_t start = start_time == AV_NOPTS_VALUE ? 0 : start_time;
|
|
if (stop_time <= start) {
|
|
av_log(d, AV_LOG_ERROR, "-to value smaller than -ss; aborting.\n");
|
|
return AVERROR(EINVAL);
|
|
} else {
|
|
recording_time = stop_time - start;
|
|
}
|
|
}
|
|
|
|
if (o->format) {
|
|
if (!(file_iformat = av_find_input_format(o->format))) {
|
|
av_log(d, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
}
|
|
|
|
if (!strcmp(filename, "-"))
|
|
filename = "fd:";
|
|
|
|
stdin_interaction &= strncmp(filename, "pipe:", 5) &&
|
|
strcmp(filename, "fd:") &&
|
|
strcmp(filename, "/dev/stdin");
|
|
|
|
/* get default parameters from command line */
|
|
ic = avformat_alloc_context();
|
|
if (!ic)
|
|
return AVERROR(ENOMEM);
|
|
if (o->audio_sample_rate.nb_opt) {
|
|
av_dict_set_int(&o->g->format_opts, "sample_rate", o->audio_sample_rate.opt[o->audio_sample_rate.nb_opt - 1].u.i, 0);
|
|
}
|
|
if (o->audio_channels.nb_opt) {
|
|
const AVClass *priv_class;
|
|
if (file_iformat && (priv_class = file_iformat->priv_class) &&
|
|
av_opt_find(&priv_class, "ch_layout", NULL, 0,
|
|
AV_OPT_SEARCH_FAKE_OBJ)) {
|
|
char buf[32];
|
|
snprintf(buf, sizeof(buf), "%dC", o->audio_channels.opt[o->audio_channels.nb_opt - 1].u.i);
|
|
av_dict_set(&o->g->format_opts, "ch_layout", buf, 0);
|
|
}
|
|
}
|
|
if (o->audio_ch_layouts.nb_opt) {
|
|
const AVClass *priv_class;
|
|
if (file_iformat && (priv_class = file_iformat->priv_class) &&
|
|
av_opt_find(&priv_class, "ch_layout", NULL, 0,
|
|
AV_OPT_SEARCH_FAKE_OBJ)) {
|
|
av_dict_set(&o->g->format_opts, "ch_layout", o->audio_ch_layouts.opt[o->audio_ch_layouts.nb_opt - 1].u.str, 0);
|
|
}
|
|
}
|
|
if (o->frame_rates.nb_opt) {
|
|
const AVClass *priv_class;
|
|
/* set the format-level framerate option;
|
|
* this is important for video grabbers, e.g. x11 */
|
|
if (file_iformat && (priv_class = file_iformat->priv_class) &&
|
|
av_opt_find(&priv_class, "framerate", NULL, 0,
|
|
AV_OPT_SEARCH_FAKE_OBJ)) {
|
|
av_dict_set(&o->g->format_opts, "framerate",
|
|
o->frame_rates.opt[o->frame_rates.nb_opt - 1].u.str, 0);
|
|
}
|
|
}
|
|
if (o->frame_sizes.nb_opt) {
|
|
av_dict_set(&o->g->format_opts, "video_size", o->frame_sizes.opt[o->frame_sizes.nb_opt - 1].u.str, 0);
|
|
}
|
|
if (o->frame_pix_fmts.nb_opt)
|
|
av_dict_set(&o->g->format_opts, "pixel_format", o->frame_pix_fmts.opt[o->frame_pix_fmts.nb_opt - 1].u.str, 0);
|
|
|
|
video_codec_name = opt_match_per_type_str(&o->codec_names, 'v');
|
|
audio_codec_name = opt_match_per_type_str(&o->codec_names, 'a');
|
|
subtitle_codec_name = opt_match_per_type_str(&o->codec_names, 's');
|
|
data_codec_name = opt_match_per_type_str(&o->codec_names, 'd');
|
|
|
|
if (video_codec_name)
|
|
ret = err_merge(ret, find_codec(NULL, video_codec_name , AVMEDIA_TYPE_VIDEO , 0,
|
|
&ic->video_codec));
|
|
if (audio_codec_name)
|
|
ret = err_merge(ret, find_codec(NULL, audio_codec_name , AVMEDIA_TYPE_AUDIO , 0,
|
|
&ic->audio_codec));
|
|
if (subtitle_codec_name)
|
|
ret = err_merge(ret, find_codec(NULL, subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
|
|
&ic->subtitle_codec));
|
|
if (data_codec_name)
|
|
ret = err_merge(ret, find_codec(NULL, data_codec_name , AVMEDIA_TYPE_DATA, 0,
|
|
&ic->data_codec));
|
|
if (ret < 0) {
|
|
avformat_free_context(ic);
|
|
return ret;
|
|
}
|
|
|
|
ic->video_codec_id = video_codec_name ? ic->video_codec->id : AV_CODEC_ID_NONE;
|
|
ic->audio_codec_id = audio_codec_name ? ic->audio_codec->id : AV_CODEC_ID_NONE;
|
|
ic->subtitle_codec_id = subtitle_codec_name ? ic->subtitle_codec->id : AV_CODEC_ID_NONE;
|
|
ic->data_codec_id = data_codec_name ? ic->data_codec->id : AV_CODEC_ID_NONE;
|
|
|
|
ic->flags |= AVFMT_FLAG_NONBLOCK;
|
|
if (o->bitexact)
|
|
ic->flags |= AVFMT_FLAG_BITEXACT;
|
|
ic->interrupt_callback = int_cb;
|
|
|
|
if (!av_dict_get(o->g->format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) {
|
|
av_dict_set(&o->g->format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE);
|
|
scan_all_pmts_set = 1;
|
|
}
|
|
/* open the input file with generic avformat function */
|
|
err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
|
|
if (err < 0) {
|
|
av_log(d, AV_LOG_ERROR,
|
|
"Error opening input: %s\n", av_err2str(err));
|
|
if (err == AVERROR_PROTOCOL_NOT_FOUND)
|
|
av_log(d, AV_LOG_ERROR, "Did you mean file:%s?\n", filename);
|
|
return err;
|
|
}
|
|
f->ctx = ic;
|
|
|
|
av_strlcat(d->log_name, "/", sizeof(d->log_name));
|
|
av_strlcat(d->log_name, ic->iformat->name, sizeof(d->log_name));
|
|
|
|
if (scan_all_pmts_set)
|
|
av_dict_set(&o->g->format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE);
|
|
remove_avoptions(&o->g->format_opts, o->g->codec_opts);
|
|
|
|
ret = check_avoptions(o->g->format_opts);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* apply forced codec ids */
|
|
for (int i = 0; i < ic->nb_streams; i++) {
|
|
const AVCodec *dummy;
|
|
ret = choose_decoder(o, f, ic, ic->streams[i], HWACCEL_NONE, AV_HWDEVICE_TYPE_NONE,
|
|
&dummy);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
if (o->find_stream_info) {
|
|
AVDictionary **opts;
|
|
int orig_nb_streams = ic->nb_streams;
|
|
|
|
ret = setup_find_stream_info_opts(ic, o->g->codec_opts, &opts);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* If not enough info to get the stream parameters, we decode the
|
|
first frames to get it. (used in mpeg case for example) */
|
|
ret = avformat_find_stream_info(ic, opts);
|
|
|
|
for (int i = 0; i < orig_nb_streams; i++)
|
|
av_dict_free(&opts[i]);
|
|
av_freep(&opts);
|
|
|
|
if (ret < 0) {
|
|
av_log(d, AV_LOG_FATAL, "could not find codec parameters\n");
|
|
if (ic->nb_streams == 0)
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if (start_time != AV_NOPTS_VALUE && start_time_eof != AV_NOPTS_VALUE) {
|
|
av_log(d, AV_LOG_WARNING, "Cannot use -ss and -sseof both, using -ss\n");
|
|
start_time_eof = AV_NOPTS_VALUE;
|
|
}
|
|
|
|
if (start_time_eof != AV_NOPTS_VALUE) {
|
|
if (start_time_eof >= 0) {
|
|
av_log(d, AV_LOG_ERROR, "-sseof value must be negative; aborting\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
if (ic->duration > 0) {
|
|
start_time = start_time_eof + ic->duration;
|
|
if (start_time < 0) {
|
|
av_log(d, AV_LOG_WARNING, "-sseof value seeks to before start of file; ignored\n");
|
|
start_time = AV_NOPTS_VALUE;
|
|
}
|
|
} else
|
|
av_log(d, AV_LOG_WARNING, "Cannot use -sseof, file duration not known\n");
|
|
}
|
|
timestamp = (start_time == AV_NOPTS_VALUE) ? 0 : start_time;
|
|
/* add the stream start time */
|
|
if (!o->seek_timestamp && ic->start_time != AV_NOPTS_VALUE)
|
|
timestamp += ic->start_time;
|
|
|
|
/* if seeking requested, we execute it */
|
|
if (start_time != AV_NOPTS_VALUE) {
|
|
int64_t seek_timestamp = timestamp;
|
|
|
|
if (!(ic->iformat->flags & AVFMT_SEEK_TO_PTS)) {
|
|
int dts_heuristic = 0;
|
|
for (int i = 0; i < ic->nb_streams; i++) {
|
|
const AVCodecParameters *par = ic->streams[i]->codecpar;
|
|
if (par->video_delay) {
|
|
dts_heuristic = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (dts_heuristic) {
|
|
seek_timestamp -= 3*AV_TIME_BASE / 23;
|
|
}
|
|
}
|
|
ret = avformat_seek_file(ic, -1, INT64_MIN, seek_timestamp, seek_timestamp, 0);
|
|
if (ret < 0) {
|
|
av_log(d, AV_LOG_WARNING, "could not seek to position %0.3f\n",
|
|
(double)timestamp / AV_TIME_BASE);
|
|
}
|
|
}
|
|
|
|
f->start_time = start_time;
|
|
d->recording_time = recording_time;
|
|
f->input_sync_ref = o->input_sync_ref;
|
|
f->input_ts_offset = o->input_ts_offset;
|
|
f->ts_offset = o->input_ts_offset - (copy_ts ? (start_at_zero && ic->start_time != AV_NOPTS_VALUE ? ic->start_time : 0) : timestamp);
|
|
d->accurate_seek = o->accurate_seek;
|
|
d->loop = o->loop;
|
|
d->nb_streams_warn = ic->nb_streams;
|
|
|
|
d->duration = (Timestamp){ .ts = 0, .tb = (AVRational){ 1, 1 } };
|
|
d->min_pts = (Timestamp){ .ts = AV_NOPTS_VALUE, .tb = (AVRational){ 1, 1 } };
|
|
d->max_pts = (Timestamp){ .ts = AV_NOPTS_VALUE, .tb = (AVRational){ 1, 1 } };
|
|
|
|
d->readrate = o->readrate ? o->readrate : 0.0;
|
|
if (d->readrate < 0.0f) {
|
|
av_log(d, AV_LOG_ERROR, "Option -readrate is %0.3f; it must be non-negative.\n", d->readrate);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
if (o->rate_emu) {
|
|
if (d->readrate) {
|
|
av_log(d, AV_LOG_WARNING, "Both -readrate and -re set. Using -readrate %0.3f.\n", d->readrate);
|
|
} else
|
|
d->readrate = 1.0f;
|
|
}
|
|
|
|
if (d->readrate) {
|
|
d->readrate_initial_burst = o->readrate_initial_burst ? o->readrate_initial_burst : 0.5;
|
|
if (d->readrate_initial_burst < 0.0) {
|
|
av_log(d, AV_LOG_ERROR,
|
|
"Option -readrate_initial_burst is %0.3f; it must be non-negative.\n",
|
|
d->readrate_initial_burst);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
} else if (o->readrate_initial_burst) {
|
|
av_log(d, AV_LOG_WARNING, "Option -readrate_initial_burst ignored "
|
|
"since neither -readrate nor -re were given\n");
|
|
}
|
|
|
|
/* Add all the streams from the given input file to the demuxer */
|
|
for (int i = 0; i < ic->nb_streams; i++) {
|
|
ret = ist_add(o, d, ic->streams[i], &opts_used);
|
|
if (ret < 0) {
|
|
av_dict_free(&opts_used);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
/* dump the file content */
|
|
av_dump_format(ic, f->index, filename, 0);
|
|
|
|
/* check if all codec options have been used */
|
|
ret = check_avoptions_used(o->g->codec_opts, opts_used, d, 1);
|
|
av_dict_free(&opts_used);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
for (int i = 0; i < o->dump_attachment.nb_opt; i++) {
|
|
for (int j = 0; j < f->nb_streams; j++) {
|
|
InputStream *ist = f->streams[j];
|
|
|
|
if (check_stream_specifier(ic, ist->st, o->dump_attachment.opt[i].specifier) == 1) {
|
|
ret = dump_attachment(ist, o->dump_attachment.opt[i].u.str);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|