diff options
Diffstat (limited to 'libavfilter/buffersrc.h')
-rw-r--r-- | libavfilter/buffersrc.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/libavfilter/buffersrc.h b/libavfilter/buffersrc.h index 452c691..7f3c8d8 100644 --- a/libavfilter/buffersrc.h +++ b/libavfilter/buffersrc.h @@ -25,16 +25,61 @@ * Memory buffer source API. */ +#include "libavcodec/avcodec.h" #include "avfilter.h" +enum { + + /** + * Do not check for format changes. + */ + AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT = 1, + + /** + * Do not copy buffer data. + */ + AV_BUFFERSRC_FLAG_NO_COPY = 2, + + /** + * Immediately push the frame to the output. + */ + AV_BUFFERSRC_FLAG_PUSH = 4, + +}; + +/** + * Add buffer data in picref to buffer_src. + * + * @param buffer_src pointer to a buffer source context + * @param picref a buffer reference, or NULL to mark EOF + * @param flags a combination of AV_BUFFERSRC_FLAG_* + * @return >= 0 in case of success, a negative AVERROR code + * in case of failure + */ +int av_buffersrc_add_ref(AVFilterContext *buffer_src, + AVFilterBufferRef *picref, int flags); + +/** + * Get the number of failed requests. + * + * A failed request is when the request_frame method is called while no + * frame is present in the buffer. + * The number is reset when a frame is added. + */ +unsigned av_buffersrc_get_nb_failed_requests(AVFilterContext *buffer_src); + +#ifdef FF_API_BUFFERSRC_BUFFER /** * Add a buffer to the filtergraph s. * * @param buf buffer containing frame data to be passed down the filtergraph. * This function will take ownership of buf, the user must not free it. * A NULL buf signals EOF -- i.e. no more frames will be sent to this filter. + * @deprecated Use av_buffersrc_add_ref(s, picref, AV_BUFFERSRC_FLAG_NO_COPY) instead. */ +attribute_deprecated int av_buffersrc_buffer(AVFilterContext *s, AVFilterBufferRef *buf); +#endif /** * Add a frame to the buffer source. |