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- /*
- * Copyright (c) 2014 The WebM project authors. All Rights Reserved.
- *
- * Use of this source code is governed by a BSD-style license
- * that can be found in the LICENSE file in the root of the source
- * tree. An additional intellectual property rights grant can be found
- * in the file PATENTS. All contributing project authors may
- * be found in the AUTHORS file in the root of the source tree.
- */
- #include <assert.h>
- #include "./y4menc.h"
- int y4m_write_file_header(char *buf, size_t len, int width, int height,
- const struct VpxRational *framerate,
- vpx_img_fmt_t fmt, unsigned int bit_depth) {
- const char *color;
- switch (bit_depth) {
- case 8:
- color = fmt == VPX_IMG_FMT_444A
- ? "C444alpha\n"
- : fmt == VPX_IMG_FMT_I444
- ? "C444\n"
- : fmt == VPX_IMG_FMT_I422 ? "C422\n" : "C420jpeg\n";
- break;
- case 9:
- color = fmt == VPX_IMG_FMT_I44416
- ? "C444p9 XYSCSS=444P9\n"
- : fmt == VPX_IMG_FMT_I42216 ? "C422p9 XYSCSS=422P9\n"
- : "C420p9 XYSCSS=420P9\n";
- break;
- case 10:
- color = fmt == VPX_IMG_FMT_I44416
- ? "C444p10 XYSCSS=444P10\n"
- : fmt == VPX_IMG_FMT_I42216 ? "C422p10 XYSCSS=422P10\n"
- : "C420p10 XYSCSS=420P10\n";
- break;
- case 12:
- color = fmt == VPX_IMG_FMT_I44416
- ? "C444p12 XYSCSS=444P12\n"
- : fmt == VPX_IMG_FMT_I42216 ? "C422p12 XYSCSS=422P12\n"
- : "C420p12 XYSCSS=420P12\n";
- break;
- case 14:
- color = fmt == VPX_IMG_FMT_I44416
- ? "C444p14 XYSCSS=444P14\n"
- : fmt == VPX_IMG_FMT_I42216 ? "C422p14 XYSCSS=422P14\n"
- : "C420p14 XYSCSS=420P14\n";
- break;
- case 16:
- color = fmt == VPX_IMG_FMT_I44416
- ? "C444p16 XYSCSS=444P16\n"
- : fmt == VPX_IMG_FMT_I42216 ? "C422p16 XYSCSS=422P16\n"
- : "C420p16 XYSCSS=420P16\n";
- break;
- default: color = NULL; assert(0);
- }
- return snprintf(buf, len, "YUV4MPEG2 W%u H%u F%u:%u I%c %s", width, height,
- framerate->numerator, framerate->denominator, 'p', color);
- }
- int y4m_write_frame_header(char *buf, size_t len) {
- return snprintf(buf, len, "FRAME\n");
- }
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