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FFmpeg/libavfilter/video.c
Niklas Haas 8c7934f73a avfilter: add negotiation API for color space/range
Motivated by YUVJ removal. This change will allow full negotiation
between color ranges and matrices as needed. By default, all ranges and
matrices are marked as supported.

Because grayscale formats are currently handled very inconsistently (and
in particular, assumed as forced full-range by swscale), we exclude them
from negotiation altogether for the time being, to get this API merged.

After filter negotiation is available, we can relax the
grayscale-is-forced-jpeg restriction again, when it will be more
feasible to do so without breaking a million test cases.

Note that this commit updates one FATE test as a consequence of the
sanity fallback for non-YUV formats. In particular, the test case now
writes rgb24(pc, gbr/unspecified/unspecified) to the matroska file,
instead of rgb24(unspecified/unspecified/unspecified) as before.
2023-12-31 13:35:03 -08:00

124 lines
3.6 KiB
C

/*
* 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/buffer.h"
#include "libavutil/cpu.h"
#include "libavutil/hwcontext.h"
#include "libavutil/imgutils.h"
#include "avfilter.h"
#include "framepool.h"
#include "internal.h"
#include "video.h"
const AVFilterPad ff_video_default_filterpad[1] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
}
};
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_buffer2(AVFilterLink *link, int w, int h, int align)
{
AVFrame *frame = NULL;
int pool_width = 0;
int pool_height = 0;
int pool_align = 0;
enum AVPixelFormat pool_format = AV_PIX_FMT_NONE;
if (link->hw_frames_ctx &&
((AVHWFramesContext*)link->hw_frames_ctx->data)->format == link->format) {
int ret;
frame = av_frame_alloc();
if (!frame)
return NULL;
ret = av_hwframe_get_buffer(link->hw_frames_ctx, frame, 0);
if (ret < 0)
av_frame_free(&frame);
return frame;
}
if (!link->frame_pool) {
link->frame_pool = ff_frame_pool_video_init(av_buffer_allocz, w, h,
link->format, align);
if (!link->frame_pool)
return NULL;
} else {
if (ff_frame_pool_get_video_config(link->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 != align) {
ff_frame_pool_uninit((FFFramePool **)&link->frame_pool);
link->frame_pool = ff_frame_pool_video_init(av_buffer_allocz, w, h,
link->format, align);
if (!link->frame_pool)
return NULL;
}
}
frame = ff_frame_pool_get(link->frame_pool);
if (!frame)
return NULL;
frame->sample_aspect_ratio = link->sample_aspect_ratio;
frame->colorspace = link->colorspace;
frame->color_range = link->color_range;
return frame;
}
AVFrame *ff_default_get_video_buffer(AVFilterLink *link, int w, int h)
{
return ff_default_get_video_buffer2(link, w, h, av_cpu_max_align());
}
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, 1);
if (link->dstpad->get_buffer.video)
ret = link->dstpad->get_buffer.video(link, w, h);
if (!ret)
ret = ff_default_get_video_buffer(link, w, h);
return ret;
}