105 lines
3.1 KiB
C
105 lines
3.1 KiB
C
/*
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* Copyright (C) 2025 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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#include "libavutil/pixdesc.h"
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#include "libswscale/ops.h"
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#include "libswscale/format.h"
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#ifdef _WIN32
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#include <io.h>
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#include <fcntl.h>
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#endif
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static int run_test(SwsContext *const ctx, AVFrame *frame,
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const AVPixFmtDescriptor *const src_desc,
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const AVPixFmtDescriptor *const dst_desc)
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{
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/* Reuse ff_fmt_from_frame() to ensure correctly sanitized metadata */
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frame->format = av_pix_fmt_desc_get_id(src_desc);
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SwsFormat src = ff_fmt_from_frame(frame, 0);
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frame->format = av_pix_fmt_desc_get_id(dst_desc);
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SwsFormat dst = ff_fmt_from_frame(frame, 0);
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bool incomplete = ff_infer_colors(&src.color, &dst.color);
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SwsOpList *ops = ff_sws_op_list_alloc();
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if (!ops)
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return AVERROR(ENOMEM);
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ops->src = src;
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ops->dst = dst;
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if (ff_sws_decode_pixfmt(ops, src.format) < 0)
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goto fail;
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if (ff_sws_decode_colors(ctx, SWS_PIXEL_F32, ops, src, &incomplete) < 0)
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goto fail;
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if (ff_sws_encode_colors(ctx, SWS_PIXEL_F32, ops, src, dst, &incomplete) < 0)
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goto fail;
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if (ff_sws_encode_pixfmt(ops, dst.format) < 0)
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goto fail;
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av_log(NULL, AV_LOG_INFO, "%s -> %s:\n",
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av_get_pix_fmt_name(src.format), av_get_pix_fmt_name(dst.format));
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ff_sws_op_list_optimize(ops);
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ff_sws_op_list_print(NULL, AV_LOG_INFO, ops);
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fail:
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/* silently skip unsupported formats */
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ff_sws_op_list_free(&ops);
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return 0;
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}
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static void log_stdout(void *avcl, int level, const char *fmt, va_list vl)
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{
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if (level != AV_LOG_INFO) {
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av_log_default_callback(avcl, level, fmt, vl);
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} else {
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vfprintf(stdout, fmt, vl);
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}
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}
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int main(int argc, char **argv)
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{
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int ret = 1;
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#ifdef _WIN32
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_setmode(_fileno(stdout), _O_BINARY);
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#endif
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SwsContext *ctx = sws_alloc_context();
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AVFrame *frame = av_frame_alloc();
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if (!ctx || !frame)
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goto fail;
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frame->width = frame->height = 16;
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av_log_set_callback(log_stdout);
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for (const AVPixFmtDescriptor *src = NULL; (src = av_pix_fmt_desc_next(src));) {
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for (const AVPixFmtDescriptor *dst = NULL; (dst = av_pix_fmt_desc_next(dst));) {
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int err = run_test(ctx, frame, src, dst);
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if (err < 0)
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goto fail;
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}
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}
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ret = 0;
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fail:
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av_frame_free(&frame);
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sws_free_context(&ctx);
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return ret;
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}
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