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Always call avcodec_thread_init()

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The various avcodec_thread_init() functions are updated to return
immediately after setting avctx->thread_count.  This allows -threads 0
to pass through to codecs.  It also simplifies the usage for apps
using libavcodec.

Originally committed as revision 21358 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård 2010-01-20 22:55:50 +00:00
parent 5fcb865b75
commit 68cf92ee5e
6 changed files with 14 additions and 5 deletions
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3
ffmpeg.c
View File

@ -2931,7 +2931,6 @@ static void opt_input_file(const char *filename)
for(i=0;i<ic->nb_streams;i++) {
AVStream *st = ic->streams[i];
AVCodecContext *enc = st->codec;
if(thread_count>1)
avcodec_thread_init(enc, thread_count);
switch(enc->codec_type) {
case CODEC_TYPE_AUDIO:
@ -3066,7 +3065,6 @@ static void new_video_stream(AVFormatContext *oc)
bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
video_bitstream_filters= NULL;
if(thread_count>1)
avcodec_thread_init(st->codec, thread_count);
video_enc = st->codec;
@ -3212,7 +3210,6 @@ static void new_audio_stream(AVFormatContext *oc)
bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
audio_bitstream_filters= NULL;
if(thread_count>1)
avcodec_thread_init(st->codec, thread_count);
audio_enc = st->codec;

1
ffplay.c
View File

@ -1722,7 +1722,6 @@ static int stream_component_open(VideoState *is, int stream_index)
enc->skip_loop_filter= skip_loop_filter;
enc->error_recognition= error_recognition;
enc->error_concealment= error_concealment;
if (thread_count > 1)
avcodec_thread_init(enc, thread_count);
set_context_opts(enc, avcodec_opts[enc->codec_type], 0);

3
libavcodec/beosthread.c
View File

@ -123,6 +123,9 @@ int avcodec_thread_init(AVCodecContext *s, int thread_count){
s->thread_count= thread_count;
if (thread_count <= 1)
return 0;
assert(!s->thread_opaque);
c= av_mallocz(sizeof(ThreadContext)*thread_count);
s->thread_opaque= c;

3
libavcodec/os2thread.c
View File

@ -116,6 +116,9 @@ int avcodec_thread_init(AVCodecContext *s, int thread_count){
s->thread_count= thread_count;
if (thread_count <= 1)
return 0;
assert(!s->thread_opaque);
c= av_mallocz(sizeof(ThreadContext)*thread_count);
s->thread_opaque= c;

6
libavcodec/pthread.c
View File

@ -145,6 +145,11 @@ int avcodec_thread_init(AVCodecContext *avctx, int thread_count)
int i;
ThreadContext *c;
avctx->thread_count = thread_count;
if (thread_count <= 1)
return 0;
c = av_mallocz(sizeof(ThreadContext));
if (!c)
return -1;
@ -156,7 +161,6 @@ int avcodec_thread_init(AVCodecContext *avctx, int thread_count)
}
avctx->thread_opaque = c;
avctx->thread_count = thread_count;
c->current_job = 0;
c->job_count = 0;
c->job_size = 0;

3
libavcodec/w32thread.c
View File

@ -131,6 +131,9 @@ int avcodec_thread_init(AVCodecContext *s, int thread_count){
s->thread_count= thread_count;
if (thread_count <= 1)
return 0;
assert(!s->thread_opaque);
c= av_mallocz(sizeof(ThreadContext)*thread_count);
s->thread_opaque= c;