52 lines
1.7 KiB
C
52 lines
1.7 KiB
C
/*
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* Copyright (c) 2013 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "./ivfenc.h"
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#include "vpx/vpx_encoder.h"
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#include "vpx_ports/mem_ops.h"
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void ivf_write_file_header(FILE *outfile, const struct vpx_codec_enc_cfg *cfg,
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unsigned int fourcc, int frame_cnt) {
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char header[32];
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header[0] = 'D';
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header[1] = 'K';
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header[2] = 'I';
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header[3] = 'F';
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mem_put_le16(header + 4, 0); // version
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mem_put_le16(header + 6, 32); // header size
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mem_put_le32(header + 8, fourcc); // fourcc
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mem_put_le16(header + 12, cfg->g_w); // width
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mem_put_le16(header + 14, cfg->g_h); // height
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mem_put_le32(header + 16, cfg->g_timebase.den); // rate
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mem_put_le32(header + 20, cfg->g_timebase.num); // scale
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mem_put_le32(header + 24, frame_cnt); // length
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mem_put_le32(header + 28, 0); // unused
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fwrite(header, 1, 32, outfile);
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}
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void ivf_write_frame_header(FILE *outfile, int64_t pts, size_t frame_size) {
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char header[12];
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mem_put_le32(header, (int)frame_size);
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mem_put_le32(header + 4, (int)(pts & 0xFFFFFFFF));
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mem_put_le32(header + 8, (int)(pts >> 32));
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fwrite(header, 1, 12, outfile);
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}
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void ivf_write_frame_size(FILE *outfile, size_t frame_size) {
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char header[4];
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mem_put_le32(header, (int)frame_size);
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fwrite(header, 1, 4, outfile);
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}
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