2 * Copyright 2007 Bobby Bingham
3 * Copyright Stefano Sabatini <stefasab gmail com>
4 * Copyright Vitor Sessak <vitor1001 gmail com>
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "libavutil/avassert.h"
27 #include "libavutil/buffer.h"
28 #include "libavutil/imgutils.h"
29 #include "libavutil/mem.h"
35 AVFrame *ff_null_get_video_buffer(AVFilterLink *link, int w, int h)
37 return ff_get_video_buffer(link->dst->outputs[0], w, h);
40 /* TODO: set the buffer's priv member to a context structure for the whole
41 * filter chain. This will allow for a buffer pool instead of the constant
42 * alloc & free cycle currently implemented. */
43 AVFrame *ff_default_get_video_buffer(AVFilterLink *link, int w, int h)
45 AVFrame *frame = av_frame_alloc();
53 frame->format = link->format;
55 ret = av_frame_get_buffer(frame, 32);
57 av_frame_free(&frame);
62 AVFrame *ff_get_video_buffer(AVFilterLink *link, int w, int h)
66 FF_TPRINTF_START(NULL, get_video_buffer); ff_tlog_link(NULL, link, 0);
68 if (link->dstpad->get_video_buffer)
69 ret = link->dstpad->get_video_buffer(link, w, h);
72 ret = ff_default_get_video_buffer(link, w, h);