77 lines
2.5 KiB
C
77 lines
2.5 KiB
C
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#include "mov-internal.h"
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#include <assert.h>
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#include <stdlib.h>
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#include <errno.h>
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int mov_read_extra(struct mov_t* mov, const struct mov_box_t* box)
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{
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struct mov_track_t* track = mov->track;
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struct mov_sample_entry_t* entry = track->stsd.current;
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if (entry->extra_data_size < box->size)
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{
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void* p = realloc(entry->extra_data, (size_t)box->size);
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if (NULL == p) return -ENOMEM;
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entry->extra_data = p;
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}
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mov_buffer_read(&mov->io, entry->extra_data, box->size);
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entry->extra_data_size = (int)box->size;
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return mov_buffer_error(&mov->io);
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}
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// extra_data: ISO/IEC 14496-15 AVCDecoderConfigurationRecord
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size_t mov_write_avcc(const struct mov_t* mov)
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{
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const struct mov_track_t* track = mov->track;
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const struct mov_sample_entry_t* entry = track->stsd.current;
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mov_buffer_w32(&mov->io, entry->extra_data_size + 8); /* size */
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mov_buffer_write(&mov->io, "avcC", 4);
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if (entry->extra_data_size > 0)
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mov_buffer_write(&mov->io, entry->extra_data, entry->extra_data_size);
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return entry->extra_data_size + 8;
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}
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// extra_data: ISO/IEC 14496-15:2017 HEVCDecoderConfigurationRecord
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size_t mov_write_hvcc(const struct mov_t* mov)
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{
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const struct mov_track_t* track = mov->track;
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const struct mov_sample_entry_t* entry = track->stsd.current;
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mov_buffer_w32(&mov->io, entry->extra_data_size + 8); /* size */
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mov_buffer_write(&mov->io, "hvcC", 4);
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if (entry->extra_data_size > 0)
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mov_buffer_write(&mov->io, entry->extra_data, entry->extra_data_size);
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return entry->extra_data_size + 8;
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}
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// https://aomediacodec.github.io/av1-isobmff
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// extra data: AV1CodecConfigurationRecord
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size_t mov_write_av1c(const struct mov_t* mov)
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{
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const struct mov_track_t* track = mov->track;
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const struct mov_sample_entry_t* entry = track->stsd.current;
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mov_buffer_w32(&mov->io, entry->extra_data_size + 8); /* size */
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mov_buffer_write(&mov->io, "av1C", 4);
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if (entry->extra_data_size > 0)
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mov_buffer_write(&mov->io, entry->extra_data, entry->extra_data_size);
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return entry->extra_data_size + 8;
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}
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// extra_data: ISO/IEC 14496-15 AVCDecoderConfigurationRecord
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/*
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class VvcConfigurationBox extends FullBox('vvcC',version=0,flags) {
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VvcDecoderConfigurationRecord() VvcConfig;
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}
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*/
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size_t mov_write_vvcc(const struct mov_t* mov)
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{
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const struct mov_track_t* track = mov->track;
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const struct mov_sample_entry_t* entry = track->stsd.current;
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mov_buffer_w32(&mov->io, entry->extra_data_size + 8); /* size */
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mov_buffer_write(&mov->io, "vvcC", 4);
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if (entry->extra_data_size > 0)
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mov_buffer_write(&mov->io, entry->extra_data, entry->extra_data_size);
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return entry->extra_data_size + 8;
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}
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