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https://github.com/FFmpeg/FFmpeg.git
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4754d70a23
It should not be needed for each filter that sets sample aspect ratio to set it explicitly also for each and every frame, instead that is automatically done in get_buffer call. Signed-off-by: Paul B Mahol <onemda@gmail.com>
113 lines
3.3 KiB
C
113 lines
3.3 KiB
C
/*
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* Copyright 2007 Bobby Bingham
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* Copyright Stefano Sabatini <stefasab gmail com>
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* Copyright Vitor Sessak <vitor1001 gmail com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <string.h>
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#include <stdio.h>
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#include "libavutil/avassert.h"
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#include "libavutil/buffer.h"
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#include "libavutil/hwcontext.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/mem.h"
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#include "avfilter.h"
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#include "internal.h"
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#include "video.h"
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#define BUFFER_ALIGN 32
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AVFrame *ff_null_get_video_buffer(AVFilterLink *link, int w, int h)
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{
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return ff_get_video_buffer(link->dst->outputs[0], w, h);
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}
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AVFrame *ff_default_get_video_buffer(AVFilterLink *link, int w, int h)
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{
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AVFrame *frame = NULL;
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int pool_width = 0;
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int pool_height = 0;
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int pool_align = 0;
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enum AVPixelFormat pool_format = AV_PIX_FMT_NONE;
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if (link->hw_frames_ctx &&
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((AVHWFramesContext*)link->hw_frames_ctx->data)->format == link->format) {
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int ret;
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AVFrame *frame = av_frame_alloc();
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if (!frame)
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return NULL;
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ret = av_hwframe_get_buffer(link->hw_frames_ctx, frame, 0);
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if (ret < 0)
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av_frame_free(&frame);
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return frame;
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}
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if (!link->frame_pool) {
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link->frame_pool = ff_frame_pool_video_init(av_buffer_allocz, w, h,
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link->format, BUFFER_ALIGN);
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if (!link->frame_pool)
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return NULL;
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} else {
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if (ff_frame_pool_get_video_config(link->frame_pool,
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&pool_width, &pool_height,
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&pool_format, &pool_align) < 0) {
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return NULL;
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}
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if (pool_width != w || pool_height != h ||
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pool_format != link->format || pool_align != BUFFER_ALIGN) {
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ff_frame_pool_uninit((FFFramePool **)&link->frame_pool);
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link->frame_pool = ff_frame_pool_video_init(av_buffer_allocz, w, h,
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link->format, BUFFER_ALIGN);
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if (!link->frame_pool)
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return NULL;
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}
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}
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frame = ff_frame_pool_get(link->frame_pool);
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if (!frame)
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return NULL;
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frame->sample_aspect_ratio = link->sample_aspect_ratio;
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return frame;
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}
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AVFrame *ff_get_video_buffer(AVFilterLink *link, int w, int h)
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{
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AVFrame *ret = NULL;
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FF_TPRINTF_START(NULL, get_video_buffer); ff_tlog_link(NULL, link, 0);
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if (link->dstpad->get_video_buffer)
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ret = link->dstpad->get_video_buffer(link, w, h);
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if (!ret)
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ret = ff_default_get_video_buffer(link, w, h);
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return ret;
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}
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