MrBesen/ffmpeg
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vsrc_buffer: add av_vsrc_buffer_add_frame()

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The new function is a wrapper around
av_vsrc_buffer_add_video_buffer_ref(), and allows to simplify the act
of pushing AVFrame data to the source buffer.
This commit is contained in:
Stefano Sabatini 2011-05-19 01:17:16 +02:00
parent d3fddb8454
commit c000a9f783
5 changed files with 31 additions and 7 deletions
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3
doc/APIchanges
View File

@ -13,6 +13,9 @@ libavutil: 2011-04-18
API changes, most recent first:
2011-05-XX - XXXXXX - lavfi 2.8.0 - avcodec.h
Add av_vsrc_buffer_add_frame() to libavfilter/avcodec.h.
2011-05-XX - XXXXXX - lavfi 2.6.0 - avcodec.h
Add avfilter_get_video_buffer_ref_from_frame() to libavfilter/avcodec.h.

7
ffmpeg.c
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@ -1643,18 +1643,13 @@ static int output_packet(AVInputStream *ist, int ist_index,
#if CONFIG_AVFILTER
if(ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
for(i=0;i<nb_ostreams;i++) {
AVFilterBufferRef *picref;
ost = ost_table[i];
if (ost->input_video_filter && ost->source_index == ist_index) {
if (!picture.sample_aspect_ratio.num)
picture.sample_aspect_ratio = ist->st->sample_aspect_ratio;
picture.pts = ist->pts;
picref =
avfilter_get_video_buffer_ref_from_frame(&picture, AV_PERM_WRITE);
av_vsrc_buffer_add_video_buffer_ref(ost->input_video_filter, picref);
picref->buf->data[0] = NULL;
avfilter_unref_buffer(picref);
av_vsrc_buffer_add_frame(ost->input_video_filter, &picture);
}
}
}

9
libavfilter/avcodec.h
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@ -45,4 +45,13 @@ void avfilter_copy_frame_props(AVFilterBufferRef *dst, const AVFrame *src);
*/
AVFilterBufferRef *avfilter_get_video_buffer_ref_from_frame(const AVFrame *frame, int perms);
/**
* Add frame data to buffer_src.
*
* @param buffer_src pointer to a buffer source context
* @return >= 0 in case of success, a negative AVERROR code in case of
* failure
*/
int av_vsrc_buffer_add_frame(AVFilterContext *buffer_src, const AVFrame *frame);
#endif /* AVFILTER_AVCODEC_H */

2
libavfilter/avfilter.h
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@ -26,7 +26,7 @@
#include "libavutil/samplefmt.h"
#define LIBAVFILTER_VERSION_MAJOR 2
#define LIBAVFILTER_VERSION_MINOR 7
#define LIBAVFILTER_VERSION_MINOR 8
#define LIBAVFILTER_VERSION_MICRO 0
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \

17
libavfilter/vsrc_buffer.c
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@ -106,6 +106,23 @@ int av_vsrc_buffer_add_video_buffer_ref(AVFilterContext *buffer_filter, AVFilter
return 0;
}
#if CONFIG_AVCODEC
#include "avcodec.h"
int av_vsrc_buffer_add_frame(AVFilterContext *buffer_src, const AVFrame *frame)
{
AVFilterBufferRef *picref =
avfilter_get_video_buffer_ref_from_frame(frame, AV_PERM_WRITE);
if (!picref)
return AVERROR(ENOMEM);
av_vsrc_buffer_add_video_buffer_ref(buffer_src, picref);
picref->buf->data[0] = NULL;
avfilter_unref_buffer(picref);
return 0;
}
#endif
static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
{
BufferSourceContext *c = ctx->priv;