/* *  Copyright (c) 2013 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 "./ivfenc.h" #include "vpx/vpx_encoder.h"#include "vpx_ports/mem_ops.h" void ivf_write_file_header_with_video_info(FILE *outfile, unsigned int fourcc,                                           int frame_cnt, int frame_width,                                           int frame_height,                                           vpx_rational_t timebase) {  char header[32];   header[0] = 'D';  header[1] = 'K';  header[2] = 'I';  header[3] = 'F';  mem_put_le16(header + 4, 0);              // version  mem_put_le16(header + 6, 32);             // header size  mem_put_le32(header + 8, fourcc);         // fourcc  mem_put_le16(header + 12, frame_width);   // width  mem_put_le16(header + 14, frame_height);  // height  mem_put_le32(header + 16, timebase.den);  // rate  mem_put_le32(header + 20, timebase.num);  // scale  mem_put_le32(header + 24, frame_cnt);     // length  mem_put_le32(header + 28, 0);             // unused   fwrite(header, 1, 32, outfile);} void ivf_write_file_header(FILE *outfile, const struct vpx_codec_enc_cfg *cfg,                           unsigned int fourcc, int frame_cnt) {  ivf_write_file_header_with_video_info(outfile, fourcc, frame_cnt, cfg->g_w,                                        cfg->g_h, cfg->g_timebase);} void ivf_write_frame_header(FILE *outfile, int64_t pts, size_t frame_size) {  char header[12];   mem_put_le32(header, (int)frame_size);  mem_put_le32(header + 4, (int)(pts & 0xFFFFFFFF));  mem_put_le32(header + 8, (int)(pts >> 32));  fwrite(header, 1, 12, outfile);} void ivf_write_frame_size(FILE *outfile, size_t frame_size) {  char header[4];   mem_put_le32(header, (int)frame_size);  fwrite(header, 1, 4, outfile);}