mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
89 lines
2.8 KiB
89 lines
2.8 KiB
/* |
|
* Copyright 2007 Bobby Bingham |
|
* Copyright Stefano Sabatini <stefasab gmail com> |
|
* Copyright Vitor Sessak <vitor1001 gmail com> |
|
* |
|
* 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 |
|
*/ |
|
|
|
#include <string.h> |
|
#include <stdio.h> |
|
|
|
#include "libavutil/avassert.h" |
|
#include "libavutil/buffer.h" |
|
#include "libavutil/imgutils.h" |
|
#include "libavutil/mem.h" |
|
|
|
#include "avfilter.h" |
|
#include "internal.h" |
|
#include "video.h" |
|
|
|
#define BUFFER_ALIGN 32 |
|
|
|
|
|
AVFrame *ff_null_get_video_buffer(AVFilterLink *link, int w, int h) |
|
{ |
|
return ff_get_video_buffer(link->dst->outputs[0], w, h); |
|
} |
|
|
|
AVFrame *ff_default_get_video_buffer(AVFilterLink *link, int w, int h) |
|
{ |
|
int pool_width = 0; |
|
int pool_height = 0; |
|
int pool_align = 0; |
|
enum AVPixelFormat pool_format = AV_PIX_FMT_NONE; |
|
|
|
if (!link->video_frame_pool) { |
|
link->video_frame_pool = ff_video_frame_pool_init(av_buffer_allocz, w, h, |
|
link->format, BUFFER_ALIGN); |
|
if (!link->video_frame_pool) |
|
return NULL; |
|
} else { |
|
if (ff_video_frame_pool_get_config(link->video_frame_pool, |
|
&pool_width, &pool_height, |
|
&pool_format, &pool_align) < 0) { |
|
return NULL; |
|
} |
|
|
|
if (pool_width != w || pool_height != h || |
|
pool_format != link->format || pool_align != BUFFER_ALIGN) { |
|
|
|
ff_video_frame_pool_uninit((FFVideoFramePool **)&link->video_frame_pool); |
|
link->video_frame_pool = ff_video_frame_pool_init(av_buffer_allocz, w, h, |
|
link->format, BUFFER_ALIGN); |
|
if (!link->video_frame_pool) |
|
return NULL; |
|
} |
|
} |
|
|
|
return ff_video_frame_pool_get(link->video_frame_pool); |
|
} |
|
|
|
AVFrame *ff_get_video_buffer(AVFilterLink *link, int w, int h) |
|
{ |
|
AVFrame *ret = NULL; |
|
|
|
FF_TPRINTF_START(NULL, get_video_buffer); ff_tlog_link(NULL, link, 0); |
|
|
|
if (link->dstpad->get_video_buffer) |
|
ret = link->dstpad->get_video_buffer(link, w, h); |
|
|
|
if (!ret) |
|
ret = ff_default_get_video_buffer(link, w, h); |
|
|
|
return ret; |
|
}
|
|
|