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77 lines
2.4 KiB
77 lines
2.4 KiB
/* |
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* Copyright (C) 2024 Niklas Haas |
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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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#ifndef SWSCALE_UTILS_H |
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#define SWSCALE_UTILS_H |
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#include "libavutil/pixdesc.h" |
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#include "swscale.h" |
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enum { |
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FIELD_TOP, /* top/even rows, or progressive */ |
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FIELD_BOTTOM, /* bottom/odd rows */ |
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}; |
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/* Subset of AVFrame parameters that uniquely determine pixel representation */ |
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typedef struct SwsFormat { |
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int width, height; |
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int interlaced; |
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enum AVPixelFormat format; |
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enum AVColorRange range; |
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enum AVColorPrimaries prim; |
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enum AVColorTransferCharacteristic trc; |
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enum AVColorSpace csp; |
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enum AVChromaLocation loc; |
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const AVPixFmtDescriptor *desc; /* convenience */ |
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} SwsFormat; |
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/** |
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* This function also sanitizes and strips the input data, removing irrelevant |
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* fields for certain formats. |
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*/ |
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SwsFormat ff_fmt_from_frame(const AVFrame *frame, int field); |
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static inline int ff_fmt_equal(const SwsFormat *fmt1, const SwsFormat *fmt2) |
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{ |
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return fmt1->width == fmt2->width && |
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fmt1->height == fmt2->height && |
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fmt1->interlaced == fmt2->interlaced && |
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fmt1->format == fmt2->format && |
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fmt1->range == fmt2->range && |
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fmt1->prim == fmt2->prim && |
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fmt1->trc == fmt2->trc && |
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fmt1->csp == fmt2->csp && |
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fmt1->loc == fmt2->loc; |
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} |
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static inline int ff_fmt_align(enum AVPixelFormat fmt) |
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{ |
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt); |
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if (desc->flags & AV_PIX_FMT_FLAG_BAYER) { |
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return 2; |
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} else { |
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return 1 << desc->log2_chroma_h; |
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} |
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} |
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int ff_test_fmt(const SwsFormat *fmt, int output); |
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#endif /* SWSCALE_UTILS_H */
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