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lavfi/buffersink: add accessors for the stream properties.

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av_buffersink_get_frame_rate() did already exist; its argument becomes const.
This commit is contained in:
Nicolas George 2016-12-18 12:31:24 +01:00
parent 0b66c456f9
commit dbe9dbed31
4 changed files with 43 additions and 9 deletions
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3
doc/APIchanges
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@ -15,6 +15,9 @@ libavutil: 2015-08-28
API changes, most recent first:
2017-01-12 - xxxxxxx - lavfi 6.69.100- buffersink.h
Add av_buffersink_get_*() functions.
2017-01-06 - xxxxxxx - lavf 57.62.100- avio.h
Add avio_get_dyn_buf()

25
libavfilter/buffersink.c
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@ -279,14 +279,27 @@ void av_buffersink_set_frame_size(AVFilterContext *ctx, unsigned frame_size)
inlink->partial_buf_size = frame_size;
}
AVRational av_buffersink_get_frame_rate(AVFilterContext *ctx)
{
av_assert0( !strcmp(ctx->filter->name, "buffersink")
|| !strcmp(ctx->filter->name, "ffbuffersink"));
return ctx->inputs[0]->frame_rate;
#define MAKE_AVFILTERLINK_ACCESSOR(type, field) \
type av_buffersink_get_##field(const AVFilterContext *ctx) { \
av_assert0(ctx->filter->uninit == uninit); \
return ctx->inputs[0]->field; \
}
MAKE_AVFILTERLINK_ACCESSOR(enum AVMediaType , type );
MAKE_AVFILTERLINK_ACCESSOR(AVRational , time_base );
MAKE_AVFILTERLINK_ACCESSOR(int , format );
MAKE_AVFILTERLINK_ACCESSOR(AVRational , frame_rate );
MAKE_AVFILTERLINK_ACCESSOR(int , w );
MAKE_AVFILTERLINK_ACCESSOR(int , h );
MAKE_AVFILTERLINK_ACCESSOR(AVRational , sample_aspect_ratio);
MAKE_AVFILTERLINK_ACCESSOR(int , channels );
MAKE_AVFILTERLINK_ACCESSOR(uint64_t , channel_layout );
MAKE_AVFILTERLINK_ACCESSOR(int , sample_rate );
MAKE_AVFILTERLINK_ACCESSOR(AVBufferRef * , hw_frames_ctx );
static av_cold int vsink_init(AVFilterContext *ctx, void *opaque)
{
BufferSinkContext *buf = ctx->priv;

22
libavfilter/buffersink.h
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@ -101,9 +101,27 @@ AVABufferSinkParams *av_abuffersink_params_alloc(void);
void av_buffersink_set_frame_size(AVFilterContext *ctx, unsigned frame_size);
/**
* Get the frame rate of the input.
* @defgroup lavfi_buffersink_accessors Buffer sink accessors
* Get the properties of the stream
* @{
*/
AVRational av_buffersink_get_frame_rate(AVFilterContext *ctx);
enum AVMediaType av_buffersink_get_type (const AVFilterContext *ctx);
AVRational av_buffersink_get_time_base (const AVFilterContext *ctx);
int av_buffersink_get_format (const AVFilterContext *ctx);
AVRational av_buffersink_get_frame_rate (const AVFilterContext *ctx);
int av_buffersink_get_w (const AVFilterContext *ctx);
int av_buffersink_get_h (const AVFilterContext *ctx);
AVRational av_buffersink_get_sample_aspect_ratio (const AVFilterContext *ctx);
int av_buffersink_get_channels (const AVFilterContext *ctx);
uint64_t av_buffersink_get_channel_layout (const AVFilterContext *ctx);
int av_buffersink_get_sample_rate (const AVFilterContext *ctx);
AVBufferRef * av_buffersink_get_hw_frames_ctx (const AVFilterContext *ctx);
/** @} */
/**
* Get a frame with filtered data from sink and put it in frame.

2
libavfilter/version.h
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@ -30,7 +30,7 @@
#include "libavutil/version.h"
#define LIBAVFILTER_VERSION_MAJOR 6
#define LIBAVFILTER_VERSION_MINOR 68
#define LIBAVFILTER_VERSION_MINOR 69
#define LIBAVFILTER_VERSION_MICRO 100
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \