videolan/ffmpeg
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-itsscale to scale timestamps

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fixes issue511

Originally committed as revision 14226 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2008-07-13 22:55:52 +00:00
parent 88c5cadc2a
commit 8833f375f9
1 changed files with 26 additions and 0 deletions
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26
ffmpeg.c
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@ -85,6 +85,7 @@ static const OptionDef options[];
static AVFormatContext *input_files[MAX_FILES];
static int64_t input_files_ts_offset[MAX_FILES];
static double input_files_ts_scale[MAX_FILES][MAX_STREAMS];
static int nb_input_files = 0;
static AVFormatContext *output_files[MAX_FILES];
@ -2053,6 +2054,13 @@ static int av_encode(AVFormatContext **output_files,
if (pkt.pts != AV_NOPTS_VALUE)
pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
if(input_files_ts_scale[file_index][pkt.stream_index]){
if(pkt.pts != AV_NOPTS_VALUE)
pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
if(pkt.dts != AV_NOPTS_VALUE)
pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
}
// fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec->codec_type);
if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE) {
int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
@ -2646,6 +2654,23 @@ static void opt_map_meta_data(const char *arg)
m->in_file = strtol(p, &p, 0);
}
static void opt_input_ts_scale(const char *arg)
{
unsigned int stream;
double scale;
char *p;
stream = strtol(arg, &p, 0);
if (*p)
p++;
scale= strtod(p, &p);
if(stream >= MAX_STREAMS)
av_exit(1);
input_files_ts_scale[nb_input_files][stream]= scale;
}
static int opt_recording_time(const char *opt, const char *arg)
{
recording_time = parse_time_or_die(opt, arg, 1);
@ -3675,6 +3700,7 @@ static const OptionDef options[] = {
{ "fs", HAS_ARG | OPT_INT64, {(void*)&limit_filesize}, "set the limit file size in bytes", "limit_size" }, //
{ "ss", OPT_FUNC2 | HAS_ARG, {(void*)opt_start_time}, "set the start time offset", "time_off" },
{ "itsoffset", OPT_FUNC2 | HAS_ARG, {(void*)opt_input_ts_offset}, "set the input ts offset", "time_off" },
{ "itsscale", HAS_ARG, {(void*)opt_input_ts_scale}, "set the input ts scale", "stream:scale" },
{ "title", HAS_ARG | OPT_STRING, {(void*)&str_title}, "set the title", "string" },
{ "timestamp", OPT_FUNC2 | HAS_ARG, {(void*)&opt_rec_timestamp}, "set the timestamp", "time" },
{ "author", HAS_ARG | OPT_STRING, {(void*)&str_author}, "set the author", "string" },