diff options
| -rw-r--r-- | libavfilter/buffersink.h | 7 | ||||
| -rw-r--r-- | libavfilter/sink_buffer.c | 2 | ||||
| -rw-r--r-- | libavfilter/version.h | 4 |
3 files changed, 11 insertions, 2 deletions
diff --git a/libavfilter/buffersink.h b/libavfilter/buffersink.h index 73926a4539..cf6bd69612 100644 --- a/libavfilter/buffersink.h +++ b/libavfilter/buffersink.h @@ -64,6 +64,13 @@ AVABufferSinkParams *av_abuffersink_params_alloc(void); #define AV_BUFFERSINK_FLAG_PEEK 1 /** + * Tell av_buffersink_get_buffer_ref() not to request a frame fom its input. + * If a frame is already buffered, it is read (and removed from the buffer), + * but if no frame is present, return AVERROR(EAGAIN). + */ +#define AV_BUFFERSINK_FLAG_NO_REQUEST 2 + +/** * Get an audio/video buffer data from buffer_sink and put it in bufref. * * This function works with both audio and video buffer sinks. diff --git a/libavfilter/sink_buffer.c b/libavfilter/sink_buffer.c index 8eb695e167..b0cc519217 100644 --- a/libavfilter/sink_buffer.c +++ b/libavfilter/sink_buffer.c @@ -126,6 +126,8 @@ int av_buffersink_get_buffer_ref(AVFilterContext *ctx, /* no picref available, fetch it from the filterchain */ if (!av_fifo_size(buf->fifo)) { + if (flags & AV_BUFFERSINK_FLAG_NO_REQUEST) + return AVERROR(EAGAIN); if ((ret = avfilter_request_frame(inlink)) < 0) return ret; } diff --git a/libavfilter/version.h b/libavfilter/version.h index 361155fe33..0f7ea501e6 100644 --- a/libavfilter/version.h +++ b/libavfilter/version.h @@ -29,8 +29,8 @@ #include "libavutil/avutil.h" #define LIBAVFILTER_VERSION_MAJOR 2 -#define LIBAVFILTER_VERSION_MINOR 71 -#define LIBAVFILTER_VERSION_MICRO 102 +#define LIBAVFILTER_VERSION_MINOR 72 +#define LIBAVFILTER_VERSION_MICRO 100 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \ LIBAVFILTER_VERSION_MINOR, \ |