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Code Issues Releases Activity

avfilter/src_movie: make the number of decode thread configurable

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Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
This commit is contained in:
Limin Wang 2021-11-06 22:38:08 +08:00
parent 511096c3a0
commit ec6187b05b
2 changed files with 10 additions and 3 deletions
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3
doc/filters.texi
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@ -28356,6 +28356,9 @@ changed, so it will generate non monotonically increasing timestamps.
Specifies the time difference between frames above which the point is
considered a timestamp discontinuity which is removed by adjusting the later
timestamps.
@item dec_threads
Specifies the number of threads for decoding
@end table
It allows overlaying a second video on top of the main input of

10
libavfilter/src_movie.c
View File

@ -67,6 +67,7 @@ typedef struct MovieContext {
int loop_count;
int64_t discontinuity_threshold;
int64_t ts_offset;
int dec_threads;
AVFormatContext *format_ctx;
@ -90,6 +91,7 @@ static const AVOption movie_options[]= {
{ "s", "set streams", OFFSET(stream_specs), AV_OPT_TYPE_STRING, {.str = 0}, 0, 0, FLAGS },
{ "loop", "set loop count", OFFSET(loop_count), AV_OPT_TYPE_INT, {.i64 = 1}, 0, INT_MAX, FLAGS },
{ "discontinuity", "set discontinuity threshold", OFFSET(discontinuity_threshold), AV_OPT_TYPE_DURATION, {.i64 = 0}, 0, INT64_MAX, FLAGS },
{ "dec_threads", "set the number of threads for decoding", OFFSET(dec_threads), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, FLAGS },
{ NULL },
};
@ -150,7 +152,7 @@ static AVStream *find_stream(void *log, AVFormatContext *avf, const char *spec)
return found;
}
static int open_stream(AVFilterContext *ctx, MovieStream *st)
static int open_stream(AVFilterContext *ctx, MovieStream *st, int dec_threads)
{
const AVCodec *codec;
int ret;
@ -169,7 +171,9 @@ static int open_stream(AVFilterContext *ctx, MovieStream *st)
if (ret < 0)
return ret;
st->codec_ctx->thread_count = ff_filter_get_nb_threads(ctx);
if (!dec_threads)
dec_threads = ff_filter_get_nb_threads(ctx);
st->codec_ctx->thread_count = dec_threads;
if ((ret = avcodec_open2(st->codec_ctx, codec, NULL)) < 0) {
av_log(ctx, AV_LOG_ERROR, "Failed to open codec\n");
@ -314,7 +318,7 @@ static av_cold int movie_common_init(AVFilterContext *ctx)
if (ret < 0)
return ret;
}
ret = open_stream(ctx, &movie->st[i]);
ret = open_stream(ctx, &movie->st[i], movie->dec_threads);
if (ret < 0)
return ret;
}