virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

af_asyncts: add first_pts option

Browse Source 
This allows for padding/trimming at the start of stream. By default, no
assumption is made about the first frame's expected pts, so no padding or
trimming is done.
This commit is contained in:
Justin Ruggles 2012-07-28 12:57:05 -04:00
parent 41f43202cf
commit 70d71b5801
2 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
doc/filters.texi
View File

@ -205,6 +205,13 @@ adding/dropping samples.
@item max_comp
Maximum compensation in samples per second.
@item first_pts
Assume the first pts should be this value.
This allows for padding/trimming at the start of stream. By default, no
assumption is made about the first frame's expected pts, so no padding or
trimming is done. For example, this could be set to 0 to pad the beginning with
silence if an audio stream starts after the video stream.
@end table
@section channelsplit

3
libavfilter/af_asyncts.c
View File

@ -49,6 +49,7 @@ static const AVOption options[] = {
{ "min_delta", "Minimum difference between timestamps and audio data "
"(in seconds) to trigger padding/trimmin the data.", OFFSET(min_delta_sec), AV_OPT_TYPE_FLOAT, { 0.1 }, 0, INT_MAX, A },
{ "max_comp", "Maximum compensation in samples per second.", OFFSET(max_comp), AV_OPT_TYPE_INT, { 500 }, 0, INT_MAX, A },
{ "first_pts", "Assume the first pts should be this value.", OFFSET(pts), AV_OPT_TYPE_INT64, { AV_NOPTS_VALUE }, INT64_MIN, INT64_MAX, A },
{ NULL },
};
@ -73,8 +74,6 @@ static int init(AVFilterContext *ctx, const char *args)
}
av_opt_free(s);
s->pts = AV_NOPTS_VALUE;
return 0;
}