diff options
Diffstat (limited to 'libavfilter/avfilter.h')
| -rw-r--r-- | libavfilter/avfilter.h | 61 |
1 files changed, 57 insertions, 4 deletions
diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h index c526df4a9f..d7d4c16ec0 100644 --- a/libavfilter/avfilter.h +++ b/libavfilter/avfilter.h @@ -84,6 +84,22 @@ typedef struct AVFilterBuffer { int format; ///< media format int w, h; ///< width and height of the allocated buffer + + /** + * pointers to the data planes/channels. + * + * For video, this should simply point to data[]. + * + * For planar audio, each channel has a separate data pointer, and + * linesize[0] contains the size of each channel buffer. + * For packed audio, there is just one data pointer, and linesize[0] + * contains the total size of the buffer for all channels. + * + * Note: Both data and extended_data will always be set, but for planar + * audio with more channels that can fit in data, extended_data must be used + * in order to access all channels. + */ + uint8_t **extended_data; } AVFilterBuffer; #define AV_PERM_READ 0x01 ///< can read from the buffer @@ -150,6 +166,22 @@ typedef struct AVFilterBufferRef { enum AVMediaType type; ///< media type of buffer data AVFilterBufferRefVideoProps *video; ///< video buffer specific properties AVFilterBufferRefAudioProps *audio; ///< audio buffer specific properties + + /** + * pointers to the data planes/channels. + * + * For video, this should simply point to data[]. + * + * For planar audio, each channel has a separate data pointer, and + * linesize[0] contains the size of each channel buffer. + * For packed audio, there is just one data pointer, and linesize[0] + * contains the total size of the buffer for all channels. + * + * Note: Both data and extended_data will always be set, but for planar + * audio with more channels that can fit in data, extended_data must be used + * in order to access all channels. + */ + uint8_t **extended_data; } AVFilterBufferRef; /** @@ -783,10 +815,31 @@ AVFilterBufferRef *avfilter_get_audio_buffer(AVFilterLink *link, int perms, * @param channel_layout the channel layout of the buffer * @param planar audio data layout - planar or packed */ -AVFilterBufferRef * -avfilter_get_audio_buffer_ref_from_arrays(uint8_t *data[8], int linesize[8], int perms, - int nb_samples, enum AVSampleFormat sample_fmt, - uint64_t channel_layout, int planar); +AVFilterBufferRef *avfilter_get_audio_buffer_ref_from_arrays(uint8_t *data[8], + int linesize[8], + int perms, + int nb_samples, + enum AVSampleFormat sample_fmt, + uint64_t channel_layout, + int planar); +/** + * Create an audio buffer reference wrapped around an already + * allocated samples buffer. + * + * @param data pointers to the samples plane buffers + * @param linesize linesize for the samples plane buffers + * @param perms the required access permissions + * @param nb_samples number of samples per channel + * @param sample_fmt the format of each sample in the buffer to allocate + * @param channel_layout the channel layout of the buffer + */ +AVFilterBufferRef *avfilter_get_audio_buffer_ref_from_arrays_alt(uint8_t **data, + int linesize, + int perms, + int nb_samples, + enum AVSampleFormat sample_fmt, + uint64_t channel_layout); + /** * Request an input frame from the filter at the other end of the link. * |