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FFmpeg/fftools/ffmpeg_mux_init.c
Anton Khirnov 0d821edb40 fftools/ffmpeg_mux_init: stop modifying OptionsContext.*_disable 
The current code will override the *_disable fields (set by -vn/-an
options) when creating output streams for unlabeled complex filtergraph
outputs, in order to disable automatic mapping for the corresponding
media type.

However, this will apply not only to automatic mappings, but to manual
ones as well, which should not happen. Avoid this by adding local
variables that are used only for automatic mappings.
2022-10-25 11:12:22 +02:00

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/*
* Muxer/output file setup.
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <string.h>
#include "cmdutils.h"
#include "ffmpeg.h"
#include "ffmpeg_mux.h"
#include "fopen_utf8.h"
#include "libavformat/avformat.h"
#include "libavformat/avio.h"
#include "libavcodec/avcodec.h"
#include "libavfilter/avfilter.h"
#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/avutil.h"
#include "libavutil/bprint.h"
#include "libavutil/dict.h"
#include "libavutil/getenv_utf8.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/log.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "libavutil/pixdesc.h"
#define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
static const char *const opt_name_apad[] = {"apad", NULL};
static const char *const opt_name_autoscale[] = {"autoscale", NULL};
static const char *const opt_name_bits_per_raw_sample[] = {"bits_per_raw_sample", NULL};
static const char *const opt_name_bitstream_filters[] = {"bsf", "absf", "vbsf", NULL};
static const char *const opt_name_copy_initial_nonkeyframes[] = {"copyinkf", NULL};
static const char *const opt_name_copy_prior_start[] = {"copypriorss", NULL};
static const char *const opt_name_disposition[] = {"disposition", NULL};
static const char *const opt_name_enc_time_bases[] = {"enc_time_base", NULL};
static const char *const opt_name_filters[] = {"filter", "af", "vf", NULL};
static const char *const opt_name_filter_scripts[] = {"filter_script", NULL};
static const char *const opt_name_fps_mode[] = {"fps_mode", NULL};
static const char *const opt_name_force_fps[] = {"force_fps", NULL};
static const char *const opt_name_forced_key_frames[] = {"forced_key_frames", NULL};
static const char *const opt_name_frame_aspect_ratios[] = {"aspect", NULL};
static const char *const opt_name_intra_matrices[] = {"intra_matrix", NULL};
static const char *const opt_name_inter_matrices[] = {"inter_matrix", NULL};
static const char *const opt_name_chroma_intra_matrices[] = {"chroma_intra_matrix", NULL};
static const char *const opt_name_max_frame_rates[] = {"fpsmax", NULL};
static const char *const opt_name_max_frames[] = {"frames", "aframes", "vframes", "dframes", NULL};
static const char *const opt_name_max_muxing_queue_size[] = {"max_muxing_queue_size", NULL};
static const char *const opt_name_muxing_queue_data_threshold[] = {"muxing_queue_data_threshold", NULL};
static const char *const opt_name_pass[] = {"pass", NULL};
static const char *const opt_name_passlogfiles[] = {"passlogfile", NULL};
static const char *const opt_name_presets[] = {"pre", "apre", "vpre", "spre", NULL};
static const char *const opt_name_qscale[] = {"q", "qscale", NULL};
static const char *const opt_name_rc_overrides[] = {"rc_override", NULL};
static const char *const opt_name_time_bases[] = {"time_base", NULL};
static const char *const opt_name_audio_channels[] = {"ac", NULL};
static const char *const opt_name_audio_ch_layouts[] = {"channel_layout", "ch_layout", NULL};
static const char *const opt_name_audio_sample_rate[] = {"ar", NULL};
static const char *const opt_name_frame_sizes[] = {"s", NULL};
static const char *const opt_name_frame_pix_fmts[] = {"pix_fmt", NULL};
static const char *const opt_name_sample_fmts[] = {"sample_fmt", NULL};
static int check_opt_bitexact(void *ctx, const AVDictionary *opts,
const char *opt_name, int flag)
{
const AVDictionaryEntry *e = av_dict_get(opts, opt_name, NULL, 0);
if (e) {
const AVOption *o = av_opt_find(ctx, opt_name, NULL, 0, 0);
int val = 0;
if (!o)
return 0;
av_opt_eval_flags(ctx, o, e->value, &val);
return !!(val & flag);
}
return 0;
}
static int choose_encoder(OptionsContext *o, AVFormatContext *s,
OutputStream *ost, const AVCodec **enc)
{
enum AVMediaType type = ost->st->codecpar->codec_type;
char *codec_name = NULL;
*enc = NULL;
if (type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO || type == AVMEDIA_TYPE_SUBTITLE) {
MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
if (!codec_name) {
ost->st->codecpar->codec_id = av_guess_codec(s->oformat, NULL, s->url,
NULL, ost->st->codecpar->codec_type);
*enc = avcodec_find_encoder(ost->st->codecpar->codec_id);
if (!*enc) {
av_log(NULL, AV_LOG_FATAL, "Automatic encoder selection failed for "
"output stream #%d:%d. Default encoder for format %s (codec %s) is "
"probably disabled. Please choose an encoder manually.\n",
ost->file_index, ost->index, s->oformat->name,
avcodec_get_name(ost->st->codecpar->codec_id));
return AVERROR_ENCODER_NOT_FOUND;
}
} else if (strcmp(codec_name, "copy")) {
*enc = find_codec_or_die(codec_name, ost->st->codecpar->codec_type, 1);
ost->st->codecpar->codec_id = (*enc)->id;
}
}
return 0;
}
static char *get_line(AVIOContext *s, AVBPrint *bprint)
{
char c;
while ((c = avio_r8(s)) && c != '\n')
av_bprint_chars(bprint, c, 1);
if (!av_bprint_is_complete(bprint))
report_and_exit(AVERROR(ENOMEM));
return bprint->str;
}
static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
{
int i, ret = -1;
char filename[1000];
char *env_avconv_datadir = getenv_utf8("AVCONV_DATADIR");
char *env_home = getenv_utf8("HOME");
const char *base[3] = { env_avconv_datadir,
env_home,
AVCONV_DATADIR,
};
for (i = 0; i < FF_ARRAY_ELEMS(base) && ret < 0; i++) {
if (!base[i])
continue;
if (codec_name) {
snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
i != 1 ? "" : "/.avconv", codec_name, preset_name);
ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
}
if (ret < 0) {
snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
i != 1 ? "" : "/.avconv", preset_name);
ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
}
}
freeenv_utf8(env_home);
freeenv_utf8(env_avconv_datadir);
return ret;
}
static OutputStream *new_output_stream(Muxer *mux, OptionsContext *o,
enum AVMediaType type, int source_index)
{
AVFormatContext *oc = mux->fc;
MuxStream *ms;
OutputStream *ost;
const AVCodec *enc;
AVStream *st = avformat_new_stream(oc, NULL);
int idx = oc->nb_streams - 1, ret = 0;
const char *bsfs = NULL, *time_base = NULL;
char *next, *codec_tag = NULL;
double qscale = -1;
int i;
if (!st)
report_and_exit(AVERROR(ENOMEM));
if (oc->nb_streams - 1 < o->nb_streamid_map)
st->id = o->streamid_map[oc->nb_streams - 1];
ms = allocate_array_elem(&mux->of.streams, sizeof(MuxStream),
&mux->of.nb_streams);
ost = &ms->ost;
ms->muxing_queue = av_fifo_alloc2(8, sizeof(AVPacket*), 0);
if (!ms->muxing_queue)
report_and_exit(AVERROR(ENOMEM));
ms->last_mux_dts = AV_NOPTS_VALUE;
ost->file_index = nb_output_files - 1;
ost->index = idx;
ost->st = st;
ost->forced_kf_ref_pts = AV_NOPTS_VALUE;
st->codecpar->codec_type = type;
ret = choose_encoder(o, oc, ost, &enc);
if (ret < 0) {
av_log(NULL, AV_LOG_FATAL, "Error selecting an encoder for stream "
"%d:%d\n", ost->file_index, ost->index);
exit_program(1);
}
if (enc) {
ost->enc_ctx = avcodec_alloc_context3(enc);
if (!ost->enc_ctx)
report_and_exit(AVERROR(ENOMEM));
}
ost->filtered_frame = av_frame_alloc();
if (!ost->filtered_frame)
report_and_exit(AVERROR(ENOMEM));
ost->pkt = av_packet_alloc();
if (!ost->pkt)
report_and_exit(AVERROR(ENOMEM));
if (ost->enc_ctx) {
AVCodecContext *enc = ost->enc_ctx;
AVIOContext *s = NULL;
char *buf = NULL, *arg = NULL, *preset = NULL;
ost->encoder_opts = filter_codec_opts(o->g->codec_opts, enc->codec_id,
oc, st, enc->codec);
MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
ost->autoscale = 1;
MATCH_PER_STREAM_OPT(autoscale, i, ost->autoscale, oc, st);
if (preset && (!(ret = get_preset_file_2(preset, enc->codec->name, &s)))) {
AVBPrint bprint;
av_bprint_init(&bprint, 0, AV_BPRINT_SIZE_UNLIMITED);
do {
av_bprint_clear(&bprint);
buf = get_line(s, &bprint);
if (!buf[0] || buf[0] == '#')
continue;
if (!(arg = strchr(buf, '='))) {
av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
exit_program(1);
}
*arg++ = 0;
av_dict_set(&ost->encoder_opts, buf, arg, AV_DICT_DONT_OVERWRITE);
} while (!s->eof_reached);
av_bprint_finalize(&bprint, NULL);
avio_closep(&s);
}
if (ret) {
av_log(NULL, AV_LOG_FATAL,
"Preset %s specified for stream %d:%d, but could not be opened.\n",
preset, ost->file_index, ost->index);
exit_program(1);
}
} else {
ost->encoder_opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
}
if (o->bitexact) {
ost->bitexact = 1;
} else if (ost->enc_ctx) {
ost->bitexact = check_opt_bitexact(ost->enc_ctx, ost->encoder_opts, "flags",
AV_CODEC_FLAG_BITEXACT);
}
MATCH_PER_STREAM_OPT(time_bases, str, time_base, oc, st);
if (time_base) {
AVRational q;
if (av_parse_ratio(&q, time_base, INT_MAX, 0, NULL) < 0 ||
q.num <= 0 || q.den <= 0) {
av_log(NULL, AV_LOG_FATAL, "Invalid time base: %s\n", time_base);
exit_program(1);
}
st->time_base = q;
}
MATCH_PER_STREAM_OPT(enc_time_bases, str, time_base, oc, st);
if (time_base) {
AVRational q;
if (av_parse_ratio(&q, time_base, INT_MAX, 0, NULL) < 0 ||
q.den <= 0) {
av_log(NULL, AV_LOG_FATAL, "Invalid time base: %s\n", time_base);
exit_program(1);
}
ost->enc_timebase = q;
}
ost->max_frames = INT64_MAX;
MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
for (i = 0; i<o->nb_max_frames; i++) {
char *p = o->max_frames[i].specifier;
if (!*p && type != AVMEDIA_TYPE_VIDEO) {
av_log(NULL, AV_LOG_WARNING, "Applying unspecific -frames to non video streams, maybe you meant -vframes ?\n");
break;
}
}
ost->copy_prior_start = -1;
MATCH_PER_STREAM_OPT(copy_prior_start, i, ost->copy_prior_start, oc ,st);
MATCH_PER_STREAM_OPT(bitstream_filters, str, bsfs, oc, st);
if (bsfs && *bsfs) {
ret = av_bsf_list_parse_str(bsfs, &ms->bsf_ctx);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Error parsing bitstream filter sequence '%s': %s\n", bsfs, av_err2str(ret));
exit_program(1);
}
}
MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
if (codec_tag) {
uint32_t tag = strtol(codec_tag, &next, 0);
if (*next)
tag = AV_RL32(codec_tag);
ost->st->codecpar->codec_tag = tag;
if (ost->enc_ctx)
ost->enc_ctx->codec_tag = tag;
}
MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
if (ost->enc_ctx && qscale >= 0) {
ost->enc_ctx->flags |= AV_CODEC_FLAG_QSCALE;
ost->enc_ctx->global_quality = FF_QP2LAMBDA * qscale;
}
MATCH_PER_STREAM_OPT(disposition, str, ost->disposition, oc, st);
ost->disposition = av_strdup(ost->disposition);
ms->max_muxing_queue_size = 128;
MATCH_PER_STREAM_OPT(max_muxing_queue_size, i, ms->max_muxing_queue_size, oc, st);
ms->muxing_queue_data_threshold = 50*1024*1024;
MATCH_PER_STREAM_OPT(muxing_queue_data_threshold, i, ms->muxing_queue_data_threshold, oc, st);
MATCH_PER_STREAM_OPT(bits_per_raw_sample, i, ost->bits_per_raw_sample,
oc, st);
if (oc->oformat->flags & AVFMT_GLOBALHEADER && ost->enc_ctx)
ost->enc_ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
av_dict_copy(&ost->sws_dict, o->g->sws_dict, 0);
av_dict_copy(&ost->swr_opts, o->g->swr_opts, 0);
if (ost->enc_ctx && av_get_exact_bits_per_sample(ost->enc_ctx->codec_id) == 24)
av_dict_set(&ost->swr_opts, "output_sample_bits", "24", 0);
ost->source_index = source_index;
if (source_index >= 0) {
input_streams[source_index]->discard = 0;
input_streams[source_index]->st->discard = input_streams[source_index]->user_set_discard;
}
ost->last_mux_dts = AV_NOPTS_VALUE;
ost->last_filter_pts = AV_NOPTS_VALUE;
MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i,
ost->copy_initial_nonkeyframes, oc, st);
return ost;
}
static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
OutputStream *ost)
{
AVStream *st = ost->st;
if (ost->filters_script && ost->filters) {
av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
"output stream #%d:%d.\n", nb_output_files, st->index);
exit_program(1);
}
if (ost->filters_script)
return file_read(ost->filters_script);
else if (ost->filters)
return av_strdup(ost->filters);
return av_strdup(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ?
"null" : "anull");
}
static void check_streamcopy_filters(OptionsContext *o, AVFormatContext *oc,
const OutputStream *ost, enum AVMediaType type)
{
if (ost->filters_script || ost->filters) {
av_log(NULL, AV_LOG_ERROR,
"%s '%s' was defined for %s output stream %d:%d but codec copy was selected.\n"
"Filtering and streamcopy cannot be used together.\n",
ost->filters ? "Filtergraph" : "Filtergraph script",
ost->filters ? ost->filters : ost->filters_script,
av_get_media_type_string(type), ost->file_index, ost->index);
exit_program(1);
}
}
static void parse_matrix_coeffs(uint16_t *dest, const char *str)
{
int i;
const char *p = str;
for (i = 0;; i++) {
dest[i] = atoi(p);
if (i == 63)
break;
p = strchr(p, ',');
if (!p) {
av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
exit_program(1);
}
p++;
}
}
static OutputStream *new_video_stream(Muxer *mux, OptionsContext *o, int source_index)
{
AVFormatContext *oc = mux->fc;
AVStream *st;
OutputStream *ost;
char *frame_rate = NULL, *max_frame_rate = NULL, *frame_aspect_ratio = NULL;
ost = new_output_stream(mux, o, AVMEDIA_TYPE_VIDEO, source_index);
st = ost->st;
MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
exit_program(1);
}
MATCH_PER_STREAM_OPT(max_frame_rates, str, max_frame_rate, oc, st);
if (max_frame_rate && av_parse_video_rate(&ost->max_frame_rate, max_frame_rate) < 0) {
av_log(NULL, AV_LOG_FATAL, "Invalid maximum framerate value: %s\n", max_frame_rate);
exit_program(1);
}
if (frame_rate && max_frame_rate) {
av_log(NULL, AV_LOG_ERROR, "Only one of -fpsmax and -r can be set for a stream.\n");
exit_program(1);
}
if ((frame_rate || max_frame_rate) &&
video_sync_method == VSYNC_PASSTHROUGH)
av_log(NULL, AV_LOG_ERROR, "Using -vsync passthrough and -r/-fpsmax can produce invalid output files\n");
MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
if (frame_aspect_ratio) {
AVRational q;
if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
q.num <= 0 || q.den <= 0) {
av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
exit_program(1);
}
ost->frame_aspect_ratio = q;
}
MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
MATCH_PER_STREAM_OPT(filters, str, ost->filters, oc, st);
if (ost->enc_ctx) {
AVCodecContext *video_enc = ost->enc_ctx;
const char *p = NULL, *fps_mode = NULL;
char *frame_size = NULL;
char *frame_pix_fmt = NULL;
char *intra_matrix = NULL, *inter_matrix = NULL;
char *chroma_intra_matrix = NULL;
int do_pass = 0;
int i;
MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
exit_program(1);
}
MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
if (frame_pix_fmt && *frame_pix_fmt == '+') {
ost->keep_pix_fmt = 1;
if (!*++frame_pix_fmt)
frame_pix_fmt = NULL;
}
if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
exit_program(1);
}
st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
if (intra_matrix) {
if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64)))
report_and_exit(AVERROR(ENOMEM));
parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
}
MATCH_PER_STREAM_OPT(chroma_intra_matrices, str, chroma_intra_matrix, oc, st);
if (chroma_intra_matrix) {
uint16_t *p = av_mallocz(sizeof(*video_enc->chroma_intra_matrix) * 64);
if (!p)
report_and_exit(AVERROR(ENOMEM));
video_enc->chroma_intra_matrix = p;
parse_matrix_coeffs(p, chroma_intra_matrix);
}
MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
if (inter_matrix) {
if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64)))
report_and_exit(AVERROR(ENOMEM));
parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
}
MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
for (i = 0; p; i++) {
int start, end, q;
int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
if (e != 3) {
av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
exit_program(1);
}
video_enc->rc_override =
av_realloc_array(video_enc->rc_override,
i + 1, sizeof(RcOverride));
if (!video_enc->rc_override) {
av_log(NULL, AV_LOG_FATAL, "Could not (re)allocate memory for rc_override.\n");
exit_program(1);
}
video_enc->rc_override[i].start_frame = start;
video_enc->rc_override[i].end_frame = end;
if (q > 0) {
video_enc->rc_override[i].qscale = q;
video_enc->rc_override[i].quality_factor = 1.0;
}
else {
video_enc->rc_override[i].qscale = 0;
video_enc->rc_override[i].quality_factor = -q/100.0;
}
p = strchr(p, '/');
if (p) p++;
}
video_enc->rc_override_count = i;
#if FFMPEG_OPT_PSNR
if (do_psnr) {
av_log(NULL, AV_LOG_WARNING, "The -psnr option is deprecated, use -flags +psnr\n");
video_enc->flags|= AV_CODEC_FLAG_PSNR;
}
#endif
/* two pass mode */
MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
if (do_pass) {
if (do_pass & 1) {
video_enc->flags |= AV_CODEC_FLAG_PASS1;
av_dict_set(&ost->encoder_opts, "flags", "+pass1", AV_DICT_APPEND);
}
if (do_pass & 2) {
video_enc->flags |= AV_CODEC_FLAG_PASS2;
av_dict_set(&ost->encoder_opts, "flags", "+pass2", AV_DICT_APPEND);
}
}
MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
if (ost->logfile_prefix &&
!(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
report_and_exit(AVERROR(ENOMEM));
if (do_pass) {
int ost_idx = -1;
char logfilename[1024];
FILE *f;
/* compute this stream's global index */
for (int i = 0; i <= ost->file_index; i++)
ost_idx += output_files[i]->nb_streams;
snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
ost->logfile_prefix ? ost->logfile_prefix :
DEFAULT_PASS_LOGFILENAME_PREFIX,
ost_idx);
if (!strcmp(ost->enc_ctx->codec->name, "libx264")) {
av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
} else {
if (video_enc->flags & AV_CODEC_FLAG_PASS2) {
char *logbuffer = file_read(logfilename);
if (!logbuffer) {
av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
logfilename);
exit_program(1);
}
video_enc->stats_in = logbuffer;
}
if (video_enc->flags & AV_CODEC_FLAG_PASS1) {
f = fopen_utf8(logfilename, "wb");
if (!f) {
av_log(NULL, AV_LOG_FATAL,
"Cannot write log file '%s' for pass-1 encoding: %s\n",
logfilename, strerror(errno));
exit_program(1);
}
ost->logfile = f;
}
}
}
MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
if (ost->forced_keyframes)
ost->forced_keyframes = av_strdup(ost->forced_keyframes);
MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
ost->top_field_first = -1;
MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
ost->vsync_method = video_sync_method;
MATCH_PER_STREAM_OPT(fps_mode, str, fps_mode, oc, st);
if (fps_mode)
parse_and_set_vsync(fps_mode, &ost->vsync_method, ost->file_index, ost->index, 0);
if (ost->vsync_method == VSYNC_AUTO) {
if (!strcmp(oc->oformat->name, "avi")) {
ost->vsync_method = VSYNC_VFR;
} else {
ost->vsync_method = (oc->oformat->flags & AVFMT_VARIABLE_FPS) ?
((oc->oformat->flags & AVFMT_NOTIMESTAMPS) ?
VSYNC_PASSTHROUGH : VSYNC_VFR) :
VSYNC_CFR;
}
if (ost->source_index >= 0 && ost->vsync_method == VSYNC_CFR) {
const InputStream *ist = input_streams[ost->source_index];
const InputFile *ifile = input_files[ist->file_index];
if (ifile->nb_streams == 1 && ifile->input_ts_offset == 0)
ost->vsync_method = VSYNC_VSCFR;
}
if (ost->vsync_method == VSYNC_CFR && copy_ts) {
ost->vsync_method = VSYNC_VSCFR;
}
}
ost->is_cfr = (ost->vsync_method == VSYNC_CFR || ost->vsync_method == VSYNC_VSCFR);
ost->avfilter = get_ost_filters(o, oc, ost);
if (!ost->avfilter)
exit_program(1);
ost->last_frame = av_frame_alloc();
if (!ost->last_frame)
report_and_exit(AVERROR(ENOMEM));
} else
check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_VIDEO);
return ost;
}
static OutputStream *new_audio_stream(Muxer *mux, OptionsContext *o, int source_index)
{
AVFormatContext *oc = mux->fc;
AVStream *st;
OutputStream *ost;
ost = new_output_stream(mux, o, AVMEDIA_TYPE_AUDIO, source_index);
st = ost->st;
MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
MATCH_PER_STREAM_OPT(filters, str, ost->filters, oc, st);
if (ost->enc_ctx) {
AVCodecContext *audio_enc = ost->enc_ctx;
int channels = 0;
char *layout = NULL;
char *sample_fmt = NULL;
MATCH_PER_STREAM_OPT(audio_channels, i, channels, oc, st);
if (channels) {
audio_enc->ch_layout.order = AV_CHANNEL_ORDER_UNSPEC;
audio_enc->ch_layout.nb_channels = channels;
}
MATCH_PER_STREAM_OPT(audio_ch_layouts, str, layout, oc, st);
if (layout) {
if (av_channel_layout_from_string(&audio_enc->ch_layout, layout) < 0) {
#if FF_API_OLD_CHANNEL_LAYOUT
uint64_t mask;
AV_NOWARN_DEPRECATED({
mask = av_get_channel_layout(layout);
})
if (!mask) {
#endif
av_log(NULL, AV_LOG_FATAL, "Unknown channel layout: %s\n", layout);
exit_program(1);
#if FF_API_OLD_CHANNEL_LAYOUT
}
av_log(NULL, AV_LOG_WARNING, "Channel layout '%s' uses a deprecated syntax.\n",
layout);
av_channel_layout_from_mask(&audio_enc->ch_layout, mask);
#endif
}
}
MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
if (sample_fmt &&
(audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
exit_program(1);
}
MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
MATCH_PER_STREAM_OPT(apad, str, ost->apad, oc, st);
ost->apad = av_strdup(ost->apad);
ost->avfilter = get_ost_filters(o, oc, ost);
if (!ost->avfilter)
exit_program(1);
#if FFMPEG_OPT_MAP_CHANNEL
/* check for channel mapping for this audio stream */
for (int n = 0; n < o->nb_audio_channel_maps; n++) {
AudioChannelMap *map = &o->audio_channel_maps[n];
if ((map->ofile_idx == -1 || ost->file_index == map->ofile_idx) &&
(map->ostream_idx == -1 || ost->st->index == map->ostream_idx)) {
InputStream *ist;
if (map->channel_idx == -1) {
ist = NULL;
} else if (ost->source_index < 0) {
av_log(NULL, AV_LOG_FATAL, "Cannot determine input stream for channel mapping %d.%d\n",
ost->file_index, ost->st->index);
continue;
} else {
ist = input_streams[ost->source_index];
}
if (!ist || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) {
if (av_reallocp_array(&ost->audio_channels_map,
ost->audio_channels_mapped + 1,
sizeof(*ost->audio_channels_map)
) < 0 )
report_and_exit(AVERROR(ENOMEM));
ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
}
}
}
#endif
} else
check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_AUDIO);
return ost;
}
static OutputStream *new_data_stream(Muxer *mux, OptionsContext *o, int source_index)
{
OutputStream *ost;
ost = new_output_stream(mux, o, AVMEDIA_TYPE_DATA, source_index);
if (ost->enc_ctx) {
av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
exit_program(1);
}
return ost;
}
static OutputStream *new_unknown_stream(Muxer *mux, OptionsContext *o, int source_index)
{
OutputStream *ost;
ost = new_output_stream(mux, o, AVMEDIA_TYPE_UNKNOWN, source_index);
if (ost->enc_ctx) {
av_log(NULL, AV_LOG_FATAL, "Unknown stream encoding not supported yet (only streamcopy)\n");
exit_program(1);
}
return ost;
}
static OutputStream *new_attachment_stream(Muxer *mux, OptionsContext *o, int source_index)
{
OutputStream *ost = new_output_stream(mux, o, AVMEDIA_TYPE_ATTACHMENT, source_index);
ost->finished = 1;
return ost;
}
static OutputStream *new_subtitle_stream(Muxer *mux, OptionsContext *o, int source_index)
{
AVStream *st;
OutputStream *ost;
ost = new_output_stream(mux, o, AVMEDIA_TYPE_SUBTITLE, source_index);
st = ost->st;
if (ost->enc_ctx) {
AVCodecContext *subtitle_enc = ost->enc_ctx;
char *frame_size = NULL;
MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, mux->fc, st);
if (frame_size && av_parse_video_size(&subtitle_enc->width, &subtitle_enc->height, frame_size) < 0) {
av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
exit_program(1);
}
}
return ost;
}
static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
Muxer *mux)
{
OutputStream *ost;
switch (ofilter->type) {
case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(mux, o, -1); break;
case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(mux, o, -1); break;
default:
av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
"currently.\n");
exit_program(1);
}
ost->filter = ofilter;
ofilter->ost = ost;
ofilter->format = -1;
if (!ost->enc_ctx) {
av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
"which is fed from a complex filtergraph. Filtering and streamcopy "
"cannot be used together.\n", ost->file_index, ost->index);
exit_program(1);
}
if (ost->avfilter && (ost->filters || ost->filters_script)) {
const char *opt = ost->filters ? "-vf/-af/-filter" : "-filter_script";
av_log(NULL, AV_LOG_ERROR,
"%s '%s' was specified through the %s option "
"for output stream %d:%d, which is fed from a complex filtergraph.\n"
"%s and -filter_complex cannot be used together for the same stream.\n",
ost->filters ? "Filtergraph" : "Filtergraph script",
ost->filters ? ost->filters : ost->filters_script,
opt, ost->file_index, ost->index, opt);
exit_program(1);
}
avfilter_inout_free(&ofilter->out_tmp);
}
static void map_auto_video(Muxer *mux, OptionsContext *o)
{
AVFormatContext *oc = mux->fc;
InputStream *ist;
int best_score = 0, idx = -1;
int qcr;
/* video: highest resolution */
if (av_guess_codec(oc->oformat, NULL, oc->url, NULL, AVMEDIA_TYPE_VIDEO) == AV_CODEC_ID_NONE)
return;
qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
for (int j = 0; j < nb_input_files; j++) {
InputFile *ifile = input_files[j];
int file_best_score = 0, file_best_idx = -1;
for (int i = 0; i < ifile->nb_streams; i++) {
int score;
ist = input_streams[ifile->ist_index + i];
score = ist->st->codecpar->width * ist->st->codecpar->height
+ 100000000 * !!(ist->st->event_flags & AVSTREAM_EVENT_FLAG_NEW_PACKETS)
+ 5000000*!!(ist->st->disposition & AV_DISPOSITION_DEFAULT);
if (ist->user_set_discard == AVDISCARD_ALL)
continue;
if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
score = 1;
if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
score > file_best_score) {
if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
continue;
file_best_score = score;
file_best_idx = ifile->ist_index + i;
}
}
if (file_best_idx >= 0) {
if((qcr == MKTAG('A', 'P', 'I', 'C')) || !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
file_best_score -= 5000000*!!(input_streams[file_best_idx]->st->disposition & AV_DISPOSITION_DEFAULT);
if (file_best_score > best_score) {
best_score = file_best_score;
idx = file_best_idx;
}
}
}
if (idx >= 0)
new_video_stream(mux, o, idx);
}
static void map_auto_audio(Muxer *mux, OptionsContext *o)
{
AVFormatContext *oc = mux->fc;
InputStream *ist;
int best_score = 0, idx = -1;
/* audio: most channels */
if (av_guess_codec(oc->oformat, NULL, oc->url, NULL, AVMEDIA_TYPE_AUDIO) == AV_CODEC_ID_NONE)
return;
for (int j = 0; j < nb_input_files; j++) {
InputFile *ifile = input_files[j];
int file_best_score = 0, file_best_idx = -1;
for (int i = 0; i < ifile->nb_streams; i++) {
int score;
ist = input_streams[ifile->ist_index + i];
score = ist->st->codecpar->ch_layout.nb_channels
+ 100000000 * !!(ist->st->event_flags & AVSTREAM_EVENT_FLAG_NEW_PACKETS)
+ 5000000*!!(ist->st->disposition & AV_DISPOSITION_DEFAULT);
if (ist->user_set_discard == AVDISCARD_ALL)
continue;
if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
score > file_best_score) {
file_best_score = score;
file_best_idx = ifile->ist_index + i;
}
}
if (file_best_idx >= 0) {
file_best_score -= 5000000*!!(input_streams[file_best_idx]->st->disposition & AV_DISPOSITION_DEFAULT);
if (file_best_score > best_score) {
best_score = file_best_score;
idx = file_best_idx;
}
}
}
if (idx >= 0)
new_audio_stream(mux, o, idx);
}
static void map_auto_subtitle(Muxer *mux, OptionsContext *o)
{
AVFormatContext *oc = mux->fc;
char *subtitle_codec_name = NULL;
/* subtitles: pick first */
MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, oc, "s");
if (!avcodec_find_encoder(oc->oformat->subtitle_codec) && !subtitle_codec_name)
return;
for (int i = 0; i < nb_input_streams; i++)
if (input_streams[i]->st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
AVCodecDescriptor const *input_descriptor =
avcodec_descriptor_get(input_streams[i]->st->codecpar->codec_id);
AVCodecDescriptor const *output_descriptor = NULL;
AVCodec const *output_codec =
avcodec_find_encoder(oc->oformat->subtitle_codec);
int input_props = 0, output_props = 0;
if (input_streams[i]->user_set_discard == AVDISCARD_ALL)
continue;
if (output_codec)
output_descriptor = avcodec_descriptor_get(output_codec->id);
if (input_descriptor)
input_props = input_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
if (output_descriptor)
output_props = output_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
if (subtitle_codec_name ||
input_props & output_props ||
// Map dvb teletext which has neither property to any output subtitle encoder
input_descriptor && output_descriptor &&
(!input_descriptor->props ||
!output_descriptor->props)) {
new_subtitle_stream(mux, o, i);
break;
}
}
}
static void map_auto_data(Muxer *mux, OptionsContext *o)
{
AVFormatContext *oc = mux->fc;
/* Data only if codec id match */
enum AVCodecID codec_id = av_guess_codec(oc->oformat, NULL, oc->url, NULL, AVMEDIA_TYPE_DATA);
for (int i = 0; codec_id != AV_CODEC_ID_NONE && i < nb_input_streams; i++) {
if (input_streams[i]->user_set_discard == AVDISCARD_ALL)
continue;
if (input_streams[i]->st->codecpar->codec_type == AVMEDIA_TYPE_DATA
&& input_streams[i]->st->codecpar->codec_id == codec_id )
new_data_stream(mux, o, i);
}
}
static void map_manual(Muxer *mux, OptionsContext *o, const StreamMap *map)
{
InputStream *ist;
if (map->disabled)
return;
if (map->linklabel) {
FilterGraph *fg;
OutputFilter *ofilter = NULL;
int j, k;
for (j = 0; j < nb_filtergraphs; j++) {
fg = filtergraphs[j];
for (k = 0; k < fg->nb_outputs; k++) {
AVFilterInOut *out = fg->outputs[k]->out_tmp;
if (out && !strcmp(out->name, map->linklabel)) {
ofilter = fg->outputs[k];
goto loop_end;
}
}
}
loop_end:
if (!ofilter) {
av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
"in any defined filter graph, or was already used elsewhere.\n", map->linklabel);
exit_program(1);
}
init_output_filter(ofilter, o, mux);
} else {
int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
if (ist->user_set_discard == AVDISCARD_ALL) {
av_log(NULL, AV_LOG_FATAL, "Stream #%d:%d is disabled and cannot be mapped.\n",
map->file_index, map->stream_index);
exit_program(1);
}
if(o->subtitle_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
return;
if(o-> audio_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
return;
if(o-> video_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
return;
if(o-> data_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_DATA)
return;
switch (ist->st->codecpar->codec_type) {
case AVMEDIA_TYPE_VIDEO: new_video_stream (mux, o, src_idx); break;
case AVMEDIA_TYPE_AUDIO: new_audio_stream (mux, o, src_idx); break;
case AVMEDIA_TYPE_SUBTITLE: new_subtitle_stream (mux, o, src_idx); break;
case AVMEDIA_TYPE_DATA: new_data_stream (mux, o, src_idx); break;
case AVMEDIA_TYPE_ATTACHMENT: new_attachment_stream(mux, o, src_idx); break;
case AVMEDIA_TYPE_UNKNOWN:
if (copy_unknown_streams) {
new_unknown_stream (mux, o, src_idx);
break;
}
default:
av_log(NULL, ignore_unknown_streams ? AV_LOG_WARNING : AV_LOG_FATAL,
"Cannot map stream #%d:%d - unsupported type.\n",
map->file_index, map->stream_index);
if (!ignore_unknown_streams) {
av_log(NULL, AV_LOG_FATAL,
"If you want unsupported types ignored instead "
"of failing, please use the -ignore_unknown option\n"
"If you want them copied, please use -copy_unknown\n");
exit_program(1);
}
}
}
}
static void create_streams(Muxer *mux, OptionsContext *o)
{
int auto_disable_v = o->video_disable;
int auto_disable_a = o->audio_disable;
int auto_disable_s = o->subtitle_disable;
int auto_disable_d = o->data_disable;
/* create streams for all unlabeled output pads */
for (int i = 0; i < nb_filtergraphs; i++) {
FilterGraph *fg = filtergraphs[i];
for (int j = 0; j < fg->nb_outputs; j++) {
OutputFilter *ofilter = fg->outputs[j];
if (!ofilter->out_tmp || ofilter->out_tmp->name)
continue;
switch (ofilter->type) {
case AVMEDIA_TYPE_VIDEO: auto_disable_v = 1; break;
case AVMEDIA_TYPE_AUDIO: auto_disable_a = 1; break;
case AVMEDIA_TYPE_SUBTITLE: auto_disable_s = 1; break;
}
init_output_filter(ofilter, o, mux);
}
}
if (!o->nb_stream_maps) {
/* pick the "best" stream of each type */
if (!auto_disable_v)
map_auto_video(mux, o);
if (!auto_disable_a)
map_auto_audio(mux, o);
if (!auto_disable_s)
map_auto_subtitle(mux, o);
if (!auto_disable_d)
map_auto_data(mux, o);
} else {
for (int i = 0; i < o->nb_stream_maps; i++)
map_manual(mux, o, &o->stream_maps[i]);
}
}
static int setup_sync_queues(Muxer *mux, AVFormatContext *oc, int64_t buf_size_us)
{
OutputFile *of = &mux->of;
int nb_av_enc = 0, nb_interleaved = 0;
int limit_frames = 0, limit_frames_av_enc = 0;
#define IS_AV_ENC(ost, type) \
(ost->enc_ctx && (type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO))
#define IS_INTERLEAVED(type) (type != AVMEDIA_TYPE_ATTACHMENT)
for (int i = 0; i < oc->nb_streams; i++) {
OutputStream *ost = of->streams[i];
enum AVMediaType type = ost->st->codecpar->codec_type;
ost->sq_idx_encode = -1;
ost->sq_idx_mux = -1;
nb_interleaved += IS_INTERLEAVED(type);
nb_av_enc += IS_AV_ENC(ost, type);
limit_frames |= ost->max_frames < INT64_MAX;
limit_frames_av_enc |= (ost->max_frames < INT64_MAX) && IS_AV_ENC(ost, type);
}
if (!((nb_interleaved > 1 && of->shortest) ||
(nb_interleaved > 0 && limit_frames)))
return 0;
/* if we have more than one encoded audio/video streams, or at least
* one encoded audio/video stream is frame-limited, then we
* synchronize them before encoding */
if ((of->shortest && nb_av_enc > 1) || limit_frames_av_enc) {
of->sq_encode = sq_alloc(SYNC_QUEUE_FRAMES, buf_size_us);
if (!of->sq_encode)
return AVERROR(ENOMEM);
for (int i = 0; i < oc->nb_streams; i++) {
OutputStream *ost = of->streams[i];
enum AVMediaType type = ost->st->codecpar->codec_type;
if (!IS_AV_ENC(ost, type))
continue;
ost->sq_idx_encode = sq_add_stream(of->sq_encode,
of->shortest || ost->max_frames < INT64_MAX);
if (ost->sq_idx_encode < 0)
return ost->sq_idx_encode;
ost->sq_frame = av_frame_alloc();
if (!ost->sq_frame)
return AVERROR(ENOMEM);
if (ost->max_frames != INT64_MAX)
sq_limit_frames(of->sq_encode, ost->sq_idx_encode, ost->max_frames);
}
}
/* if there are any additional interleaved streams, then ALL the streams
* are also synchronized before sending them to the muxer */
if (nb_interleaved > nb_av_enc) {
mux->sq_mux = sq_alloc(SYNC_QUEUE_PACKETS, buf_size_us);
if (!mux->sq_mux)
return AVERROR(ENOMEM);
mux->sq_pkt = av_packet_alloc();
if (!mux->sq_pkt)
return AVERROR(ENOMEM);
for (int i = 0; i < oc->nb_streams; i++) {
OutputStream *ost = of->streams[i];
enum AVMediaType type = ost->st->codecpar->codec_type;
if (!IS_INTERLEAVED(type))
continue;
ost->sq_idx_mux = sq_add_stream(mux->sq_mux,
of->shortest || ost->max_frames < INT64_MAX);
if (ost->sq_idx_mux < 0)
return ost->sq_idx_mux;
if (ost->max_frames != INT64_MAX)
sq_limit_frames(mux->sq_mux, ost->sq_idx_mux, ost->max_frames);
}
}
#undef IS_AV_ENC
#undef IS_INTERLEAVED
return 0;
}
static void of_add_attachments(Muxer *mux, OptionsContext *o)
{
OutputStream *ost;
int err;
for (int i = 0; i < o->nb_attachments; i++) {
AVIOContext *pb;
uint8_t *attachment;
const char *p;
int64_t len;
if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
o->attachments[i]);
exit_program(1);
}
if ((len = avio_size(pb)) <= 0) {
av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
o->attachments[i]);
exit_program(1);
}
if (len > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE ||
!(attachment = av_malloc(len + AV_INPUT_BUFFER_PADDING_SIZE))) {
av_log(NULL, AV_LOG_FATAL, "Attachment %s too large.\n",
o->attachments[i]);
exit_program(1);
}
avio_read(pb, attachment, len);
memset(attachment + len, 0, AV_INPUT_BUFFER_PADDING_SIZE);
ost = new_attachment_stream(mux, o, -1);
ost->attachment_filename = o->attachments[i];
ost->st->codecpar->extradata = attachment;
ost->st->codecpar->extradata_size = len;
p = strrchr(o->attachments[i], '/');
av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
avio_closep(&pb);
}
}
static void of_add_programs(AVFormatContext *oc, const OptionsContext *o)
{
/* process manually set programs */
for (int i = 0; i < o->nb_program; i++) {
const char *p = o->program[i].u.str;
int progid = i+1;
AVProgram *program;
while(*p) {
const char *p2 = av_get_token(&p, ":");
const char *to_dealloc = p2;
char *key;
if (!p2)
break;
if(*p) p++;
key = av_get_token(&p2, "=");
if (!key || !*p2) {
av_freep(&to_dealloc);
av_freep(&key);
break;
}
p2++;
if (!strcmp(key, "program_num"))
progid = strtol(p2, NULL, 0);
av_freep(&to_dealloc);
av_freep(&key);
}
program = av_new_program(oc, progid);
if (!program)
report_and_exit(AVERROR(ENOMEM));
p = o->program[i].u.str;
while(*p) {
const char *p2 = av_get_token(&p, ":");
const char *to_dealloc = p2;
char *key;
if (!p2)
break;
if(*p) p++;
key = av_get_token(&p2, "=");
if (!key) {
av_log(NULL, AV_LOG_FATAL,
"No '=' character in program string %s.\n",
p2);
exit_program(1);
}
if (!*p2)
exit_program(1);
p2++;
if (!strcmp(key, "title")) {
av_dict_set(&program->metadata, "title", p2, 0);
} else if (!strcmp(key, "program_num")) {
} else if (!strcmp(key, "st")) {
int st_num = strtol(p2, NULL, 0);
av_program_add_stream_index(oc, progid, st_num);
} else {
av_log(NULL, AV_LOG_FATAL, "Unknown program key %s.\n", key);
exit_program(1);
}
av_freep(&to_dealloc);
av_freep(&key);
}
}
}
/**
* Parse a metadata specifier passed as 'arg' parameter.
* @param arg metadata string to parse
* @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
* @param index for type c/p, chapter/program index is written here
* @param stream_spec for type s, the stream specifier is written here
*/
static void parse_meta_type(const char *arg, char *type, int *index, const char **stream_spec)
{
if (*arg) {
*type = *arg;
switch (*arg) {
case 'g':
break;
case 's':
if (*(++arg) && *arg != ':') {
av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
exit_program(1);
}
*stream_spec = *arg == ':' ? arg + 1 : "";
break;
case 'c':
case 'p':
if (*(++arg) == ':')
*index = strtol(++arg, NULL, 0);
break;
default:
av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
exit_program(1);
}
} else
*type = 'g';
}
static void of_add_metadata(OutputFile *of, AVFormatContext *oc,
const OptionsContext *o)
{
for (int i = 0; i < o->nb_metadata; i++) {
AVDictionary **m;
char type, *val;
const char *stream_spec;
int index = 0, ret = 0;
val = strchr(o->metadata[i].u.str, '=');
if (!val) {
av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
o->metadata[i].u.str);
exit_program(1);
}
*val++ = 0;
parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
if (type == 's') {
for (int j = 0; j < oc->nb_streams; j++) {
OutputStream *ost = of->streams[j];
if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
#if FFMPEG_ROTATION_METADATA
if (!strcmp(o->metadata[i].u.str, "rotate")) {
char *tail;
double theta = av_strtod(val, &tail);
if (!*tail) {
ost->rotate_overridden = 1;
ost->rotate_override_value = theta;
}
av_log(NULL, AV_LOG_WARNING,
"Conversion of a 'rotate' metadata key to a "
"proper display matrix rotation is deprecated. "
"See -display_rotation for setting rotation "
"instead.");
} else {
#endif
av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
#if FFMPEG_ROTATION_METADATA
}
#endif
} else if (ret < 0)
exit_program(1);
}
} else {
switch (type) {
case 'g':
m = &oc->metadata;
break;
case 'c':
if (index < 0 || index >= oc->nb_chapters) {
av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
exit_program(1);
}
m = &oc->chapters[index]->metadata;
break;
case 'p':
if (index < 0 || index >= oc->nb_programs) {
av_log(NULL, AV_LOG_FATAL, "Invalid program index %d in metadata specifier.\n", index);
exit_program(1);
}
m = &oc->programs[index]->metadata;
break;
default:
av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
exit_program(1);
}
av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
}
}
}
static void set_channel_layout(OutputFilter *f, OutputStream *ost)
{
const AVCodec *c = ost->enc_ctx->codec;
int i, err;
if (ost->enc_ctx->ch_layout.order != AV_CHANNEL_ORDER_UNSPEC) {
/* Pass the layout through for all orders but UNSPEC */
err = av_channel_layout_copy(&f->ch_layout, &ost->enc_ctx->ch_layout);
if (err < 0)
report_and_exit(AVERROR(ENOMEM));
return;
}
/* Requested layout is of order UNSPEC */
if (!c->ch_layouts) {
/* Use the default native layout for the requested amount of channels when the
encoder doesn't have a list of supported layouts */
av_channel_layout_default(&f->ch_layout, ost->enc_ctx->ch_layout.nb_channels);
return;
}
/* Encoder has a list of supported layouts. Pick the first layout in it with the
same amount of channels as the requested layout */
for (i = 0; c->ch_layouts[i].nb_channels; i++) {
if (c->ch_layouts[i].nb_channels == ost->enc_ctx->ch_layout.nb_channels)
break;
}
if (c->ch_layouts[i].nb_channels) {
/* Use it if one is found */
err = av_channel_layout_copy(&f->ch_layout, &c->ch_layouts[i]);
if (err < 0)
report_and_exit(AVERROR(ENOMEM));
return;
}
/* If no layout for the amount of channels requested was found, use the default
native layout for it. */
av_channel_layout_default(&f->ch_layout, ost->enc_ctx->ch_layout.nb_channels);
}
static int copy_chapters(InputFile *ifile, OutputFile *ofile, AVFormatContext *os,
int copy_metadata)
{
AVFormatContext *is = ifile->ctx;
AVChapter **tmp;
int i;
tmp = av_realloc_f(os->chapters, is->nb_chapters + os->nb_chapters, sizeof(*os->chapters));
if (!tmp)
return AVERROR(ENOMEM);
os->chapters = tmp;
for (i = 0; i < is->nb_chapters; i++) {
AVChapter *in_ch = is->chapters[i], *out_ch;
int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
int64_t ts_off = av_rescale_q(start_time - ifile->ts_offset,
AV_TIME_BASE_Q, in_ch->time_base);
int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
if (in_ch->end < ts_off)
continue;
if (rt != INT64_MAX && in_ch->start > rt + ts_off)
break;
out_ch = av_mallocz(sizeof(AVChapter));
if (!out_ch)
return AVERROR(ENOMEM);
out_ch->id = in_ch->id;
out_ch->time_base = in_ch->time_base;
out_ch->start = FFMAX(0, in_ch->start - ts_off);
out_ch->end = FFMIN(rt, in_ch->end - ts_off);
if (copy_metadata)
av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
os->chapters[os->nb_chapters++] = out_ch;
}
return 0;
}
static int copy_metadata(const char *outspec, const char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
{
AVDictionary **meta_in = NULL;
AVDictionary **meta_out = NULL;
int i, ret = 0;
char type_in, type_out;
const char *istream_spec = NULL, *ostream_spec = NULL;
int idx_in = 0, idx_out = 0;
parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
if (!ic) {
if (type_out == 'g' || !*outspec)
o->metadata_global_manual = 1;
if (type_out == 's' || !*outspec)
o->metadata_streams_manual = 1;
if (type_out == 'c' || !*outspec)
o->metadata_chapters_manual = 1;
return 0;
}
if (type_in == 'g' || type_out == 'g')
o->metadata_global_manual = 1;
if (type_in == 's' || type_out == 's')
o->metadata_streams_manual = 1;
if (type_in == 'c' || type_out == 'c')
o->metadata_chapters_manual = 1;
/* ic is NULL when just disabling automatic mappings */
if (!ic)
return 0;
#define METADATA_CHECK_INDEX(index, nb_elems, desc)\
if ((index) < 0 || (index) >= (nb_elems)) {\
av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
(desc), (index));\
exit_program(1);\
}
#define SET_DICT(type, meta, context, index)\
switch (type) {\
case 'g':\
meta = &context->metadata;\
break;\
case 'c':\
METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
meta = &context->chapters[index]->metadata;\
break;\
case 'p':\
METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
meta = &context->programs[index]->metadata;\
break;\
case 's':\
break; /* handled separately below */ \
default: av_assert0(0);\
}\
SET_DICT(type_in, meta_in, ic, idx_in);
SET_DICT(type_out, meta_out, oc, idx_out);
/* for input streams choose first matching stream */
if (type_in == 's') {
for (i = 0; i < ic->nb_streams; i++) {
if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
meta_in = &ic->streams[i]->metadata;
break;
} else if (ret < 0)
exit_program(1);
}
if (!meta_in) {
av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
exit_program(1);
}
}
if (type_out == 's') {
for (i = 0; i < oc->nb_streams; i++) {
if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
meta_out = &oc->streams[i]->metadata;
av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
} else if (ret < 0)
exit_program(1);
}
} else
av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
return 0;
}
static void copy_meta(Muxer *mux, OptionsContext *o)
{
OutputFile *of = &mux->of;
AVFormatContext *oc = mux->fc;
int chapters_input_file = o->chapters_input_file;
/* copy metadata */
for (int i = 0; i < o->nb_metadata_map; i++) {
char *p;
int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
if (in_file_index >= nb_input_files) {
av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
exit_program(1);
}
copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
in_file_index >= 0 ?
input_files[in_file_index]->ctx : NULL, o);
}
/* copy chapters */
if (chapters_input_file >= nb_input_files) {
if (chapters_input_file == INT_MAX) {
/* copy chapters from the first input file that has them*/
chapters_input_file = -1;
for (int i = 0; i < nb_input_files; i++)
if (input_files[i]->ctx->nb_chapters) {
chapters_input_file = i;
break;
}
} else {
av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
chapters_input_file);
exit_program(1);
}
}
if (chapters_input_file >= 0)
copy_chapters(input_files[chapters_input_file], of, oc,
!o->metadata_chapters_manual);
/* copy global metadata by default */
if (!o->metadata_global_manual && nb_input_files){
av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
AV_DICT_DONT_OVERWRITE);
if (of->recording_time != INT64_MAX)
av_dict_set(&oc->metadata, "duration", NULL, 0);
av_dict_set(&oc->metadata, "creation_time", NULL, 0);
av_dict_set(&oc->metadata, "company_name", NULL, 0);
av_dict_set(&oc->metadata, "product_name", NULL, 0);
av_dict_set(&oc->metadata, "product_version", NULL, 0);
}
if (!o->metadata_streams_manual)
for (int i = 0; i < of->nb_streams; i++) {
OutputStream *ost = of->streams[i];
InputStream *ist;
if (ost->source_index < 0) /* this is true e.g. for attached files */
continue;
ist = input_streams[ost->source_index];
av_dict_copy(&ost->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
if (ost->enc_ctx) {
av_dict_set(&ost->st->metadata, "encoder", NULL, 0);
}
}
}
static int set_dispositions(OutputFile *of, AVFormatContext *ctx)
{
int nb_streams[AVMEDIA_TYPE_NB] = { 0 };
int have_default[AVMEDIA_TYPE_NB] = { 0 };
int have_manual = 0;
// first, copy the input dispositions
for (int i = 0; i < ctx->nb_streams; i++) {
OutputStream *ost = of->streams[i];
nb_streams[ost->st->codecpar->codec_type]++;
have_manual |= !!ost->disposition;
if (ost->source_index >= 0) {
ost->st->disposition = input_streams[ost->source_index]->st->disposition;
if (ost->st->disposition & AV_DISPOSITION_DEFAULT)
have_default[ost->st->codecpar->codec_type] = 1;
}
}
if (have_manual) {
// process manually set dispositions - they override the above copy
for (int i = 0; i < ctx->nb_streams; i++) {
OutputStream *ost = of->streams[i];
int ret;
if (!ost->disposition)
continue;
#if LIBAVFORMAT_VERSION_MAJOR >= 60
ret = av_opt_set(ost->st, "disposition", ost->disposition, 0);
#else
{
const AVClass *class = av_stream_get_class();
const AVOption *o = av_opt_find(&class, "disposition", NULL, 0, AV_OPT_SEARCH_FAKE_OBJ);
av_assert0(o);
ret = av_opt_eval_flags(&class, o, ost->disposition, &ost->st->disposition);
}
#endif
if (ret < 0)
return ret;
}
} else {
// For each media type with more than one stream, find a suitable stream to
// mark as default, unless one is already marked default.
// "Suitable" means the first of that type, skipping attached pictures.
for (int i = 0; i < ctx->nb_streams; i++) {
OutputStream *ost = of->streams[i];
enum AVMediaType type = ost->st->codecpar->codec_type;
if (nb_streams[type] < 2 || have_default[type] ||
ost->st->disposition & AV_DISPOSITION_ATTACHED_PIC)
continue;
ost->st->disposition |= AV_DISPOSITION_DEFAULT;
have_default[type] = 1;
}
}
return 0;
}
int of_open(OptionsContext *o, const char *filename)
{
Muxer *mux;
AVFormatContext *oc;
int err;
OutputFile *of;
AVDictionary *unused_opts = NULL;
const AVDictionaryEntry *e = NULL;
int64_t recording_time = o->recording_time;
int64_t stop_time = o->stop_time;
if (stop_time != INT64_MAX && recording_time != INT64_MAX) {
stop_time = INT64_MAX;
av_log(NULL, 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_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
if (stop_time <= start_time) {
av_log(NULL, AV_LOG_ERROR, "-to value smaller than -ss; aborting.\n");
exit_program(1);
} else {
recording_time = stop_time - start_time;
}
}
mux = allocate_array_elem(&output_files, sizeof(Muxer), &nb_output_files);
of = &mux->of;
of->index = nb_output_files - 1;
of->recording_time = recording_time;
of->start_time = o->start_time;
of->shortest = o->shortest;
mux->thread_queue_size = o->thread_queue_size > 0 ? o->thread_queue_size : 8;
mux->limit_filesize = o->limit_filesize;
av_dict_copy(&mux->opts, o->g->format_opts, 0);
if (!strcmp(filename, "-"))
filename = "pipe:";
err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
if (!oc) {
print_error(filename, err);
exit_program(1);
}
mux->fc = oc;
if (strcmp(oc->oformat->name, "rtp"))
want_sdp = 0;
of->format = oc->oformat;
if (recording_time != INT64_MAX)
oc->duration = recording_time;
oc->interrupt_callback = int_cb;
if (o->bitexact) {
oc->flags |= AVFMT_FLAG_BITEXACT;
of->bitexact = 1;
} else {
of->bitexact = check_opt_bitexact(oc, mux->opts, "fflags",
AVFMT_FLAG_BITEXACT);
}
/* create all output streams for this file */
create_streams(mux, o);
of_add_attachments(mux, o);
if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
av_dump_format(oc, nb_output_files - 1, oc->url, 1);
av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", nb_output_files - 1);
exit_program(1);
}
/* check if all codec options have been used */
unused_opts = strip_specifiers(o->g->codec_opts);
for (int i = 0; i < of->nb_streams; i++) {
e = NULL;
while ((e = av_dict_get(of->streams[i]->encoder_opts, "", e,
AV_DICT_IGNORE_SUFFIX)))
av_dict_set(&unused_opts, e->key, NULL, 0);
}
e = NULL;
while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
const AVClass *class = avcodec_get_class();
const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
const AVClass *fclass = avformat_get_class();
const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
if (!option || foption)
continue;
if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
"output file #%d (%s) is not an encoding option.\n", e->key,
option->help ? option->help : "", nb_output_files - 1,
filename);
exit_program(1);
}
// gop_timecode is injected by generic code but not always used
if (!strcmp(e->key, "gop_timecode"))
continue;
av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
"output file #%d (%s) has not been used for any stream. The most "
"likely reason is either wrong type (e.g. a video option with "
"no video streams) or that it is a private option of some encoder "
"which was not actually used for any stream.\n", e->key,
option->help ? option->help : "", nb_output_files - 1, filename);
}
av_dict_free(&unused_opts);
/* set the decoding_needed flags and create simple filtergraphs */
for (int i = 0; i < of->nb_streams; i++) {
OutputStream *ost = of->streams[i];
if (ost->enc_ctx && ost->source_index >= 0) {
InputStream *ist = input_streams[ost->source_index];
ist->decoding_needed |= DECODING_FOR_OST;
ist->processing_needed = 1;
if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
err = init_simple_filtergraph(ist, ost);
if (err < 0) {
av_log(NULL, AV_LOG_ERROR,
"Error initializing a simple filtergraph between streams "
"%d:%d->%d:%d\n", ist->file_index, ost->source_index,
nb_output_files - 1, ost->st->index);
exit_program(1);
}
}
} else if (ost->source_index >= 0) {
InputStream *ist = input_streams[ost->source_index];
ist->processing_needed = 1;
}
/* set the filter output constraints */
if (ost->filter) {
const AVCodec *c = ost->enc_ctx->codec;
OutputFilter *f = ost->filter;
switch (ost->enc_ctx->codec_type) {
case AVMEDIA_TYPE_VIDEO:
f->frame_rate = ost->frame_rate;
f->width = ost->enc_ctx->width;
f->height = ost->enc_ctx->height;
if (ost->enc_ctx->pix_fmt != AV_PIX_FMT_NONE) {
f->format = ost->enc_ctx->pix_fmt;
} else {
f->formats = c->pix_fmts;
}
break;
case AVMEDIA_TYPE_AUDIO:
if (ost->enc_ctx->sample_fmt != AV_SAMPLE_FMT_NONE) {
f->format = ost->enc_ctx->sample_fmt;
} else {
f->formats = c->sample_fmts;
}
if (ost->enc_ctx->sample_rate) {
f->sample_rate = ost->enc_ctx->sample_rate;
} else {
f->sample_rates = c->supported_samplerates;
}
if (ost->enc_ctx->ch_layout.nb_channels) {
set_channel_layout(f, ost);
} else if (c->ch_layouts) {
f->ch_layouts = c->ch_layouts;
}
break;
}
}
}
/* check filename in case of an image number is expected */
if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
if (!av_filename_number_test(oc->url)) {
print_error(oc->url, AVERROR(EINVAL));
exit_program(1);
}
}
if (!(oc->oformat->flags & AVFMT_NOSTREAMS) && !input_stream_potentially_available) {
av_log(NULL, AV_LOG_ERROR,
"No input streams but output needs an input stream\n");
exit_program(1);
}
if (!(oc->oformat->flags & AVFMT_NOFILE)) {
/* test if it already exists to avoid losing precious files */
assert_file_overwrite(filename);
/* open the file */
if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
&oc->interrupt_callback,
&mux->opts)) < 0) {
print_error(filename, err);
exit_program(1);
}
} else if (strcmp(oc->oformat->name, "image2")==0 && !av_filename_number_test(filename))
assert_file_overwrite(filename);
if (o->mux_preload) {
av_dict_set_int(&mux->opts, "preload", o->mux_preload*AV_TIME_BASE, 0);
}
oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
/* copy metadata and chapters from input files */
copy_meta(mux, o);
of_add_programs(oc, o);
of_add_metadata(of, oc, o);
err = set_dispositions(of, oc);
if (err < 0) {
av_log(NULL, AV_LOG_FATAL, "Error setting output stream dispositions\n");
exit_program(1);
}
err = setup_sync_queues(mux, oc, o->shortest_buf_duration * AV_TIME_BASE);
if (err < 0) {
av_log(NULL, AV_LOG_FATAL, "Error setting up output sync queues\n");
exit_program(1);
}
of->url = filename;
/* write the header for files with no streams */
if (of->format->flags & AVFMT_NOSTREAMS && oc->nb_streams == 0) {
int ret = mux_check_init(mux);
if (ret < 0)
return ret;
}
return 0;
}
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