y4menc.c

/*
 *  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 "./y4menc.h"

void y4m_write_file_header(FILE *file, int width, int height,
                           const struct VpxRational *framerate,
                           vpx_img_fmt_t fmt) {
  const char *color = fmt == VPX_IMG_FMT_444A ? "C444alpha\n" :
                      fmt == VPX_IMG_FMT_I444 ? "C444\n" :
                      fmt == VPX_IMG_FMT_I422 ? "C422\n" :
                      "C420jpeg\n";

  // Note: We can't output an aspect ratio here because IVF doesn't
  // store one, and neither does VP8.
  // That will have to wait until these tools support WebM natively.*/
  fprintf(file, "YUV4MPEG2 W%u H%u F%u:%u I%c %s", width, height,
          framerate->numerator, framerate->denominator, 'p', color);
}

void y4m_write_frame_header(FILE *file) {
  fprintf(file, "FRAME\n");
}