1561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes/* 2561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes * Copyright (c) 2013 The WebM project authors. All Rights Reserved. 3561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes * 4561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes * Use of this source code is governed by a BSD-style license 5561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes * that can be found in the LICENSE file in the root of the source 6561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes * tree. An additional intellectual property rights grant can be found 7561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes * in the file PATENTS. All contributing project authors may 8561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes * be found in the AUTHORS file in the root of the source tree. 9561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes */ 10561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes 11561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes#include "./ivfenc.h" 12561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes 13561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes#include "vpx/vpx_encoder.h" 14561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes#include "vpx_ports/mem_ops.h" 15561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes 16561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughesvoid ivf_write_file_header(FILE *outfile, 17561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes const struct vpx_codec_enc_cfg *cfg, 18561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes unsigned int fourcc, 198d8858e39800de641b50f6e8e864af9cf68bedeaNarayan Kamath int frame_cnt) { 208d8858e39800de641b50f6e8e864af9cf68bedeaNarayan Kamath char header[32]; 21561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes 22561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes header[0] = 'D'; 23561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes header[1] = 'K'; 24561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes header[2] = 'I'; 25561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes header[3] = 'F'; 26561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes mem_put_le16(header + 4, 0); // version 27561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes mem_put_le16(header + 6, 32); // header size 28561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes mem_put_le32(header + 8, fourcc); // fourcc 29561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes mem_put_le16(header + 12, cfg->g_w); // width 30e98fbf8686c5289bf03fe5c3de7ff82d3a77104dElliott Hughes mem_put_le16(header + 14, cfg->g_h); // height 31561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes mem_put_le32(header + 16, cfg->g_timebase.den); // rate 32561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes mem_put_le32(header + 20, cfg->g_timebase.num); // scale 33561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes mem_put_le32(header + 24, frame_cnt); // length 34561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes mem_put_le32(header + 28, 0); // unused 35561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes 36561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes fwrite(header, 1, 32, outfile); 37561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes} 38561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes 39561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughesvoid ivf_write_frame_header(FILE *outfile, int64_t pts, size_t frame_size) { 40561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes char header[12]; 41561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes 42561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes mem_put_le32(header, (int)frame_size); 43561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes mem_put_le32(header + 4, (int)(pts & 0xFFFFFFFF)); 44561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes mem_put_le32(header + 8, (int)(pts >> 32)); 45561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes fwrite(header, 1, 12, outfile); 46561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes} 47561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes 48561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughesvoid ivf_write_frame_size(FILE *outfile, size_t frame_size) { 49561ee011997c6c2f1befbfaa9d5f0a99771c1d63Elliott Hughes char header[4]; 50e98fbf8686c5289bf03fe5c3de7ff82d3a77104dElliott Hughes 51 mem_put_le32(header, (int)frame_size); 52 fwrite(header, 1, 4, outfile); 53} 54