From: Limin Wang <lance.lmw...@gmail.com>
Signed-off-by: Limin Wang <lance.lmw...@gmail.com>
---
doc/filters.texi | 3 +++
libavfilter/src_movie.c | 10 +++++++---
2 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/doc/filters.texi b/doc/filters.texi
index b537e42..c9ef854 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -28344,6 +28344,9 @@ 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
diff --git a/libavfilter/src_movie.c b/libavfilter/src_movie.c
index 573f363..5a4e77b 100644
--- a/libavfilter/src_movie.c
+++ b/libavfilter/src_movie.c
@@ -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;
}
--
1.8.3.1
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