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ffmpeg.c: copy chapters by default. 

Patch by Anton Khirnov wyskas gmail com

Originally committed as revision 22598 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Anton Khirnov 2010-03-19 07:44:38 +00:00 committed by Benoit Fouet
parent 5388f0b479
commit 7a39f142a8
1 changed files with 51 additions and 0 deletions
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51
ffmpeg.c
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@ -1646,6 +1646,47 @@ static void print_sdp(AVFormatContext **avc, int n)
fflush(stdout);
}
static int copy_chapters(int infile, int outfile)
{
AVFormatContext *is = input_files[infile];
AVFormatContext *os = output_files[outfile];
int i;
for (i = 0; i < is->nb_chapters; i++) {
AVChapter *in_ch = is->chapters[i], *out_ch;
AVMetadataTag *t = NULL;
int64_t ts_off = av_rescale_q(start_time - input_files_ts_offset[infile],
AV_TIME_BASE_Q, in_ch->time_base);
int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
av_rescale_q(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);
while ((t = av_metadata_get(in_ch->metadata, "", t, AV_METADATA_IGNORE_SUFFIX)))
av_metadata_set2(&out_ch->metadata, t->key, t->value, 0);
os->nb_chapters++;
os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
if (!os->chapters)
return AVERROR(ENOMEM);
os->chapters[os->nb_chapters - 1] = out_ch;
}
return 0;
}
/*
* The following code is the main loop of the file converter
*/
@ -2134,6 +2175,16 @@ static int av_encode(AVFormatContext **output_files,
in_file->iformat->metadata_conv);
}
/* copy chapters from the first input file that has them*/
for (i = 0; i < nb_input_files; i++) {
if (!input_files[i]->nb_chapters)
continue;
for (j = 0; j < nb_output_files; j++)
if ((ret = copy_chapters(i, j)) < 0)
goto dump_format;
}
/* open files and write file headers */
for(i=0;i<nb_output_files;i++) {
os = output_files[i];