FFmpeg
video.h
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1 /*
2  * Copyright (c) 2007 Bobby Bingham
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #ifndef AVFILTER_VIDEO_H
22 #define AVFILTER_VIDEO_H
23 
24 #include "avfilter.h"
25 
28 
29 /**
30  * Request a picture buffer with a specific set of permissions.
31  *
32  * @param link the output link to the filter from which the buffer will
33  * be requested
34  * @param w the minimum width of the buffer to allocate
35  * @param h the minimum height of the buffer to allocate
36  * @return on success, an AVFrame owned by the caller, NULL on error
37  */
39 
40 #endif /* AVFILTER_VIDEO_H */
ff_get_video_buffer
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:98
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:310
w
uint8_t w
Definition: llviddspenc.c:38
ff_default_get_video_buffer
AVFrame * ff_default_get_video_buffer(AVFilterLink *link, int w, int h)
Definition: video.c:43
link
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a link
Definition: filter_design.txt:23
ff_null_get_video_buffer
AVFrame * ff_null_get_video_buffer(AVFilterLink *link, int w, int h)
Definition: video.c:38
avfilter.h
h
h
Definition: vp9dsp_template.c:2038