| /* |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #ifndef AVFILTER_VSINK_BUFFER_H |
| #define AVFILTER_VSINK_BUFFER_H |
| |
| /** |
| * @file |
| * memory buffer sink API for audio and video |
| */ |
| |
| #include "avfilter.h" |
| |
| /** |
| * Struct to use for initializing a buffersink context. |
| */ |
| typedef struct { |
| const enum PixelFormat *pixel_fmts; ///< list of allowed pixel formats, terminated by PIX_FMT_NONE |
| } AVBufferSinkParams; |
| |
| /** |
| * Create an AVBufferSinkParams structure. |
| * |
| * Must be freed with av_free(). |
| */ |
| AVBufferSinkParams *av_buffersink_params_alloc(void); |
| |
| /** |
| * Struct to use for initializing an abuffersink context. |
| */ |
| typedef struct { |
| const enum AVSampleFormat *sample_fmts; ///< list of allowed sample formats, terminated by AV_SAMPLE_FMT_NONE |
| const int64_t *channel_layouts; ///< list of allowed channel layouts, terminated by -1 |
| const int *packing_fmts; ///< list of allowed packing formats |
| } AVABufferSinkParams; |
| |
| /** |
| * Create an AVABufferSinkParams structure. |
| * |
| * Must be freed with av_free(). |
| */ |
| AVABufferSinkParams *av_abuffersink_params_alloc(void); |
| |
| /** |
| * Tell av_buffersink_get_buffer_ref() to read video/samples buffer |
| * reference, but not remove it from the buffer. This is useful if you |
| * need only to read a video/samples buffer, without to fetch it. |
| */ |
| #define AV_BUFFERSINK_FLAG_PEEK 1 |
| |
| /** |
| * Get an audio/video buffer data from buffer_sink and put it in bufref. |
| * |
| * This function works with both audio and video buffer sinks. |
| * |
| * @param buffer_sink pointer to a buffersink or abuffersink context |
| * @param flags a combination of AV_BUFFERSINK_FLAG_* flags |
| * @return >= 0 in case of success, a negative AVERROR code in case of |
| * failure |
| */ |
| int av_buffersink_get_buffer_ref(AVFilterContext *buffer_sink, |
| AVFilterBufferRef **bufref, int flags); |
| |
| |
| /** |
| * Get the number of immediately available frames. |
| */ |
| int av_buffersink_poll_frame(AVFilterContext *ctx); |
| |
| #if FF_API_OLD_VSINK_API |
| /** |
| * @deprecated Use av_buffersink_get_buffer_ref() instead. |
| */ |
| attribute_deprecated |
| int av_vsink_buffer_get_video_buffer_ref(AVFilterContext *buffer_sink, |
| AVFilterBufferRef **picref, int flags); |
| #endif |
| |
| #endif /* AVFILTER_VSINK_BUFFER_H */ |