ref: bfce02971e59e3439d576774772a13c5349d6c76
dir: /ivfenc.c/
/* * 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(FILE *outfile, const struct vpx_codec_enc_cfg *cfg, unsigned int fourcc, int frame_cnt) { 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, cfg->g_w); // width mem_put_le16(header + 14, cfg->g_h); // height mem_put_le32(header + 16, cfg->g_timebase.den); // rate mem_put_le32(header + 20, cfg->g_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_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); }