34 lines
968 B
C
34 lines
968 B
C
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#include "mov-internal.h"
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#include <errno.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <assert.h>
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// 8.8.2 Movie Extends Header Box (p68)
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int mov_read_mehd(struct mov_t* mov, const struct mov_box_t* box)
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{
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unsigned int version;
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uint64_t fragment_duration;
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version = mov_buffer_r8(&mov->io); /* version */
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mov_buffer_r24(&mov->io); /* flags */
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if (1 == version)
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fragment_duration = mov_buffer_r64(&mov->io); /* fragment_duration*/
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else
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fragment_duration = mov_buffer_r32(&mov->io); /* fragment_duration*/
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(void)box;
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//assert(fragment_duration <= mov->mvhd.duration);
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return mov_buffer_error(&mov->io);
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}
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size_t mov_write_mehd(const struct mov_t* mov)
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{
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mov_buffer_w32(&mov->io, 20); /* size */
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mov_buffer_write(&mov->io, "mehd", 4);
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mov_buffer_w8(&mov->io, 1); /* version */
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mov_buffer_w24(&mov->io, 0); /* flags */
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mov_buffer_w64(&mov->io, mov->mvhd.duration); // 0 ?
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return 20;
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}
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