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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-07 11:13:41 +02:00
FFmpeg/libavfilter/video.h
Niklas Haas ca77fc2177 avfilter: fix YUV colorspace negotiation for YUVJ
Ironically, despite being introduced to make YUVJ unnecessary, the new
YUV negotiation logic failed to actually negotiate YUVJ formats
themselves correctly, leading to errors when passing YUVJ frames into
a filter graph. (They were effectively treated like RGB or Grayscale
formats, rather than as forced-full-range YUV, and hence did not have
their colorspace matrix correctly negotiated)

Fix this by splitting off the YUVJ check from ff_fmt_is_regular_yuv().
Obviously, we can trivially undo this change again once YUVJ is actually
deleted from the codebase.

Fixes: #11179
2024-09-12 19:13:21 +02:00

60 lines
2.0 KiB
C

/*
* Copyright (c) 2007 Bobby Bingham
*
* 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
*/
#ifndef AVFILTER_VIDEO_H
#define AVFILTER_VIDEO_H
#include "avfilter.h"
#include "filters.h"
/**
* An AVFilterPad array whose only entry has name "default"
* and is of type AVMEDIA_TYPE_VIDEO.
*/
extern const AVFilterPad ff_video_default_filterpad[1];
AVFrame *ff_default_get_video_buffer(AVFilterLink *link, int w, int h);
AVFrame *ff_default_get_video_buffer2(AVFilterLink *link, int w, int h, int align);
AVFrame *ff_null_get_video_buffer(AVFilterLink *link, int w, int h);
/**
* Request a picture buffer with a specific set of permissions.
*
* @param link the output link to the filter from which the buffer will
* be requested
* @param w the minimum width of the buffer to allocate
* @param h the minimum height of the buffer to allocate
* @return on success, an AVFrame owned by the caller, NULL on error
*/
AVFrame *ff_get_video_buffer(AVFilterLink *link, int w, int h);
/**
* Returns true if a pixel format is "regular YUV", which includes all pixel
* formats that are affected by YUV colorspace negotiation.
*/
int ff_fmt_is_regular_yuv(enum AVPixelFormat fmt);
/**
* Returns true if a YUV pixel format is forced full range (i.e. YUVJ).
*/
int ff_fmt_is_forced_full_range(enum AVPixelFormat fmt);
#endif /* AVFILTER_VIDEO_H */