| /* |
| * 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_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"); |
| } |