1 /* 2 * Copyright (c) 2014 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #include "./y4menc.h" 12 13 int y4m_write_file_header(char *buf, size_t len, int width, int height, 14 const struct VpxRational *framerate, 15 vpx_img_fmt_t fmt) { 16 const char *const color = fmt == VPX_IMG_FMT_444A ? "C444alpha\n" : 17 fmt == VPX_IMG_FMT_I444 ? "C444\n" : 18 fmt == VPX_IMG_FMT_I422 ? "C422\n" : 19 "C420jpeg\n"; 20 21 return snprintf(buf, len, "YUV4MPEG2 W%u H%u F%u:%u I%c %s", width, height, 22 framerate->numerator, framerate->denominator, 'p', color); 23 } 24 25 int y4m_write_frame_header(char *buf, size_t len) { 26 return snprintf(buf, len, "FRAME\n"); 27 } 28
