577 lines
18 KiB
C
577 lines
18 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 <string.h>
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#include <errno.h>
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// stsd: Sample Description Box
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int mp4_read_extra(struct mov_t* mov, const struct mov_box_t* box)
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{
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int r;
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uint64_t p1, p2;
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p1 = mov_buffer_tell(&mov->io);
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r = mov_reader_box(mov, box);
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p2 = mov_buffer_tell(&mov->io);
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mov_buffer_skip(&mov->io, box->size - (p2 - p1));
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return r;
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}
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/*
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aligned(8) abstract class SampleEntry (unsigned int(32) format)
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extends Box(format){
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const unsigned int(8)[6] reserved = 0;
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unsigned int(16) data_reference_index;
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}
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*/
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static int mov_read_sample_entry(struct mov_t* mov, struct mov_box_t* box, uint16_t* data_reference_index)
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{
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box->size = mov_buffer_r32(&mov->io);
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box->type = mov_buffer_r32(&mov->io);
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mov_buffer_skip(&mov->io, 6); // const unsigned int(8)[6] reserved = 0;
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*data_reference_index = (uint16_t)mov_buffer_r16(&mov->io); // ref [dref]
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return 0;
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}
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/*
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class AudioSampleEntry(codingname) extends SampleEntry (codingname){
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const unsigned int(32)[2] reserved = 0;
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template unsigned int(16) channelcount = 2;
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template unsigned int(16) samplesize = 16;
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unsigned int(16) pre_defined = 0;
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const unsigned int(16) reserved = 0 ;
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template unsigned int(32) samplerate = { default samplerate of media}<<16;
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}
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*/
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static int mov_read_audio(struct mov_t* mov, struct mov_sample_entry_t* entry)
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{
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uint16_t qtver;
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struct mov_box_t box;
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mov_read_sample_entry(mov, &box, &entry->data_reference_index);
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entry->object_type_indication = mov_tag_to_object(box.type);
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entry->stream_type = MP4_STREAM_AUDIO;
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mov->track->tag = box.type;
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#if 0
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// const unsigned int(32)[2] reserved = 0;
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mov_buffer_skip(&mov->io, 8);
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#else
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qtver = mov_buffer_r16(&mov->io); /* version */
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mov_buffer_r16(&mov->io); /* revision level */
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mov_buffer_r32(&mov->io); /* vendor */
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#endif
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entry->u.audio.channelcount = (uint16_t)mov_buffer_r16(&mov->io);
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entry->u.audio.samplesize = (uint16_t)mov_buffer_r16(&mov->io);
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#if 0
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// unsigned int(16) pre_defined = 0;
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// const unsigned int(16) reserved = 0 ;
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mov_buffer_skip(&mov->io, 4);
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#else
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mov_buffer_r16(&mov->io); /* audio cid */
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mov_buffer_r16(&mov->io); /* packet size = 0 */
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#endif
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entry->u.audio.samplerate = mov_buffer_r32(&mov->io); // { default samplerate of media}<<16;
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// audio extra(avc1: ISO/IEC 14496-14:2003(E))
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box.size -= 36;
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// https://developer.apple.com/library/archive/documentation/QuickTime/QTFF/QTFFChap3/qtff3.html#//apple_ref/doc/uid/TP40000939-CH205-124774
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if (1 == qtver && box.size >= 16)
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{
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// Sound Sample Description (Version 1)
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mov_buffer_r32(&mov->io); // Samples per packet
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mov_buffer_r32(&mov->io); // Bytes per packet
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mov_buffer_r32(&mov->io); // Bytes per frame
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mov_buffer_r32(&mov->io); // Bytes per sample
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box.size -= 16;
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}
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else if (2 == qtver && box.size >= 36)
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{
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// Sound Sample Description (Version 2)
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mov_buffer_r32(&mov->io); // sizeOfStructOnly
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mov_buffer_r64(&mov->io); // audioSampleRate
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mov_buffer_r32(&mov->io); // numAudioChannels
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mov_buffer_r32(&mov->io); // always7F000000
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mov_buffer_r32(&mov->io); // constBitsPerChannel
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mov_buffer_r32(&mov->io); // formatSpecificFlags
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mov_buffer_r32(&mov->io); // constBytesPerAudioPacket
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mov_buffer_r32(&mov->io); // constLPCMFramesPerAudioPacket
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box.size -= 36;
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}
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return mp4_read_extra(mov, &box);
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}
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/*
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class VisualSampleEntry(codingname) extends SampleEntry (codingname){
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unsigned int(16) pre_defined = 0;
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const unsigned int(16) reserved = 0;
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unsigned int(32)[3] pre_defined = 0;
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unsigned int(16) width;
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unsigned int(16) height;
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template unsigned int(32) horizresolution = 0x00480000; // 72 dpi
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template unsigned int(32) vertresolution = 0x00480000; // 72 dpi
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const unsigned int(32) reserved = 0;
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template unsigned int(16) frame_count = 1;
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string[32] compressorname;
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template unsigned int(16) depth = 0x0018;
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int(16) pre_defined = -1;
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// other boxes from derived specifications
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CleanApertureBox clap; // optional
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PixelAspectRatioBox pasp; // optional
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}
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class AVCSampleEntry() extends VisualSampleEntry ('avc1'){
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AVCConfigurationBox config;
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MPEG4BitRateBox (); // optional
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MPEG4ExtensionDescriptorsBox (); // optional
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}
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class AVC2SampleEntry() extends VisualSampleEntry ('avc2'){
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AVCConfigurationBox avcconfig;
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MPEG4BitRateBox bitrate; // optional
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MPEG4ExtensionDescriptorsBox descr; // optional
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extra_boxes boxes; // optional
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}
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*/
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static int mov_read_video(struct mov_t* mov, struct mov_sample_entry_t* entry)
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{
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struct mov_box_t box;
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mov_read_sample_entry(mov, &box, &entry->data_reference_index);
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entry->object_type_indication = mov_tag_to_object(box.type);
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entry->stream_type = MP4_STREAM_VISUAL;
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mov->track->tag = box.type;
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#if 1
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//unsigned int(16) pre_defined = 0;
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//const unsigned int(16) reserved = 0;
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//unsigned int(32)[3] pre_defined = 0;
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mov_buffer_skip(&mov->io, 16);
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#else
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mov_buffer_r16(&mov->io); /* version */
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mov_buffer_r16(&mov->io); /* revision level */
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mov_buffer_r32(&mov->io); /* vendor */
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mov_buffer_r32(&mov->io); /* temporal quality */
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mov_buffer_r32(&mov->io); /* spatial quality */
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#endif
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entry->u.visual.width = (uint16_t)mov_buffer_r16(&mov->io);
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entry->u.visual.height = (uint16_t)mov_buffer_r16(&mov->io);
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entry->u.visual.horizresolution = mov_buffer_r32(&mov->io); // 0x00480000 - 72 dpi
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entry->u.visual.vertresolution = mov_buffer_r32(&mov->io); // 0x00480000 - 72 dpi
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// const unsigned int(32) reserved = 0;
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mov_buffer_r32(&mov->io); /* data size, always 0 */
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entry->u.visual.frame_count = (uint16_t)mov_buffer_r16(&mov->io);
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//string[32] compressorname;
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//uint32_t len = mov_buffer_r8(&mov->io);
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//mov_buffer_skip(&mov->io, len);
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mov_buffer_skip(&mov->io, 32);
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entry->u.visual.depth = (uint16_t)mov_buffer_r16(&mov->io);
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// int(16) pre_defined = -1;
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mov_buffer_skip(&mov->io, 2);
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// video extra(avc1: ISO/IEC 14496-15:2010(E))
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box.size -= 86;
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return mp4_read_extra(mov, &box);
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}
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/*
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class PixelAspectRatioBox extends Box(pasp){
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unsigned int(32) hSpacing;
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unsigned int(32) vSpacing;
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}
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*/
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int mov_read_pasp(struct mov_t* mov, const struct mov_box_t* box)
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{
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mov_buffer_r32(&mov->io);
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mov_buffer_r32(&mov->io);
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(void)box;
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return 0;
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}
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static int mov_read_hint_sample_entry(struct mov_t* mov, struct mov_sample_entry_t* entry)
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{
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struct mov_box_t box;
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mov_read_sample_entry(mov, &box, &entry->data_reference_index);
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mov_buffer_skip(&mov->io, box.size - 16);
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entry->object_type_indication = mov_tag_to_object(box.type);
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entry->stream_type = MP4_STREAM_VISUAL;
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mov->track->tag = box.type;
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return mov_buffer_error(&mov->io);
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}
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static int mov_read_meta_sample_entry(struct mov_t* mov, struct mov_sample_entry_t* entry)
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{
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struct mov_box_t box;
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mov_read_sample_entry(mov, &box, &entry->data_reference_index);
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mov_buffer_skip(&mov->io, box.size - 16);
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entry->object_type_indication = mov_tag_to_object(box.type);
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entry->stream_type = MP4_STREAM_VISUAL;
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mov->track->tag = box.type;
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return mov_buffer_error(&mov->io);
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}
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// ISO/IEC 14496-12:2015(E) 12.5 Text media (p184)
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/*
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class PlainTextSampleEntry(codingname) extends SampleEntry (codingname) {
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}
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class SimpleTextSampleEntry(codingname) extends PlainTextSampleEntry ('stxt') {
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string content_encoding; // optional
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string mime_format;
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BitRateBox (); // optional
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TextConfigBox (); // optional
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}
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*/
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static int mov_read_text_sample_entry(struct mov_t* mov, struct mov_sample_entry_t* entry)
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{
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struct mov_box_t box;
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mov_read_sample_entry(mov, &box, &entry->data_reference_index);
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if (MOV_TEXT == box.type)
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{
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// https://developer.apple.com/documentation/quicktime-file-format/text_sample_description
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//mov_buffer_r32(&mov->io); /* display flags */
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//mov_buffer_r32(&mov->io); /* text justification */
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//mov_buffer_r16(&mov->io); /* background color: 48-bit RGB color */
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//mov_buffer_r16(&mov->io);
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//mov_buffer_r16(&mov->io);
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//mov_buffer_r64(&mov->io); /* default text box (top, left, bottom, right) */
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//mov_buffer_r64(&mov->io); /* reserved */
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//mov_buffer_r16(&mov->io); /* font number */
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//mov_buffer_r16(&mov->io); /* font face */
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//mov_buffer_r8(&mov->io); /* reserved */
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//mov_buffer_r16(&mov->io); /* reserved */
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//mov_buffer_r16(&mov->io); /* foreground color: 48-bit RGB color */
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//mov_buffer_r16(&mov->io);
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//mov_buffer_r16(&mov->io);
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////mov_buffer_r16(&mov->io); /* text name */
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mov_buffer_skip(&mov->io, box.size - 16);
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}
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else
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{
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mov_buffer_skip(&mov->io, box.size - 16);
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}
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entry->object_type_indication = mov_tag_to_object(box.type);
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entry->stream_type = MP4_STREAM_VISUAL;
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mov->track->tag = box.type;
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return mov_buffer_error(&mov->io);
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}
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// ISO/IEC 14496-12:2015(E) 12.6 Subtitle media (p185)
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/*
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class SubtitleSampleEntry(codingname) extends SampleEntry (codingname) {
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}
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class XMLSubtitleSampleEntry() extends SubtitleSampleEntry('stpp') {
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string namespace;
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string schema_location; // optional
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string auxiliary_mime_types;
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// optional, required if auxiliary resources are present
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BitRateBox (); // optional
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}
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class TextSubtitleSampleEntry() extends SubtitleSampleEntry('sbtt') {
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string content_encoding; // optional
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string mime_format;
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BitRateBox (); // optional
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TextConfigBox (); // optional
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}
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class TextSampleEntry() extends SampleEntry('tx3g') {
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unsigned int(32) displayFlags;
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signed int(8) horizontal-justification;
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signed int(8) vertical-justification;
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unsigned int(8) background-color-rgba[4];
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BoxRecord default-text-box;
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StyleRecord default-style;
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FontTableBox font-table;
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DisparityBox default-disparity;
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}
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*/
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static int mov_read_subtitle_sample_entry(struct mov_t* mov, struct mov_sample_entry_t* entry)
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{
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struct mov_box_t box;
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mov_read_sample_entry(mov, &box, &entry->data_reference_index);
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box.size -= 16;
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if (box.type == MOV_TAG('t', 'x', '3', 'g'))
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{
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mov_read_tx3g(mov, &box);
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}
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else
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{
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mov_buffer_skip(&mov->io, box.size - 16);
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}
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entry->object_type_indication = MOV_OBJECT_TEXT;
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entry->stream_type = MP4_STREAM_VISUAL;
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mov->track->tag = box.type;
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return mov_buffer_error(&mov->io);
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}
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int mov_read_stsd(struct mov_t* mov, const struct mov_box_t* box)
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{
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uint32_t i, entry_count;
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struct mov_track_t* track = mov->track;
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mov_buffer_r8(&mov->io);
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mov_buffer_r24(&mov->io);
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entry_count = mov_buffer_r32(&mov->io);
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if (track->stsd.entry_count < entry_count)
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{
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void* p = realloc(track->stsd.entries, sizeof(track->stsd.entries[0]) * entry_count);
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if (NULL == p) return -ENOMEM;
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track->stsd.entries = (struct mov_sample_entry_t*)p;
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}
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track->stsd.entry_count = entry_count;
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for (i = 0; i < entry_count; i++)
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{
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track->stsd.current = &track->stsd.entries[i];
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memset(track->stsd.current, 0, sizeof(*track->stsd.current));
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if (MOV_AUDIO == track->handler_type)
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{
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mov_read_audio(mov, &track->stsd.entries[i]);
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}
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else if (MOV_VIDEO == track->handler_type)
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{
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mov_read_video(mov, &track->stsd.entries[i]);
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||
|
|
}
|
||
|
|
else if (MOV_HINT == track->handler_type)
|
||
|
|
{
|
||
|
|
mov_read_hint_sample_entry(mov, &track->stsd.entries[i]);
|
||
|
|
}
|
||
|
|
else if (MOV_META == track->handler_type)
|
||
|
|
{
|
||
|
|
mov_read_meta_sample_entry(mov, &track->stsd.entries[i]);
|
||
|
|
}
|
||
|
|
else if (MOV_CLCP == track->handler_type)
|
||
|
|
{
|
||
|
|
mov_read_meta_sample_entry(mov, &track->stsd.entries[i]);
|
||
|
|
}
|
||
|
|
else if (MOV_TEXT == track->handler_type)
|
||
|
|
{
|
||
|
|
mov_read_text_sample_entry(mov, &track->stsd.entries[i]);
|
||
|
|
}
|
||
|
|
else if (MOV_SUBT == track->handler_type || MOV_SBTL == track->handler_type)
|
||
|
|
{
|
||
|
|
mov_read_subtitle_sample_entry(mov, &track->stsd.entries[i]);
|
||
|
|
}
|
||
|
|
else if (MOV_ALIS == track->handler_type)
|
||
|
|
{
|
||
|
|
mov_read_meta_sample_entry(mov, &track->stsd.entries[i]);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
assert(0); // ignore
|
||
|
|
mov_read_meta_sample_entry(mov, &track->stsd.entries[i]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
(void)box;
|
||
|
|
return mov_buffer_error(&mov->io);
|
||
|
|
}
|
||
|
|
|
||
|
|
//static int mov_write_h264(const struct mov_t* mov)
|
||
|
|
//{
|
||
|
|
// size_t size;
|
||
|
|
// uint64_t offset;
|
||
|
|
// const struct mov_track_t* track = mov->track;
|
||
|
|
//
|
||
|
|
// size = 8 /* Box */;
|
||
|
|
//
|
||
|
|
// offset = mov_buffer_tell(&mov->io);
|
||
|
|
// mov_buffer_w32(&mov->io, 0); /* size */
|
||
|
|
// mov_buffer_w32(&mov->io, MOV_TAG('a', 'v', 'c', 'C'));
|
||
|
|
//
|
||
|
|
// mov_write_size(mov, offset, size); /* update size */
|
||
|
|
// return size;
|
||
|
|
//}
|
||
|
|
|
||
|
|
static size_t mov_write_btrt(const struct mov_t* mov, const struct mov_sample_entry_t* entry)
|
||
|
|
{
|
||
|
|
mov_buffer_w32(&mov->io, 20); /* size */
|
||
|
|
mov_buffer_write(&mov->io, "btrt", 4);
|
||
|
|
mov_buffer_w32(&mov->io, entry->u.bitrate.bufferSizeDB);
|
||
|
|
mov_buffer_w32(&mov->io, 0x00000014);
|
||
|
|
mov_buffer_w32(&mov->io, 0x00000014);
|
||
|
|
//mov_buffer_w32(&mov->io, entry->u.bitrate.maxBitrate);
|
||
|
|
//mov_buffer_w32(&mov->io, entry->u.bitrate.avgBitrate);
|
||
|
|
return 20;
|
||
|
|
}
|
||
|
|
|
||
|
|
static size_t mov_write_video(const struct mov_t* mov, const struct mov_sample_entry_t* entry)
|
||
|
|
{
|
||
|
|
size_t size;
|
||
|
|
uint64_t offset;
|
||
|
|
char compressorname[32];
|
||
|
|
memset(compressorname, 0, sizeof(compressorname));
|
||
|
|
assert(1 == entry->data_reference_index);
|
||
|
|
|
||
|
|
size = 8 /* Box */ + 8 /* SampleEntry */ + 70 /* VisualSampleEntry */;
|
||
|
|
|
||
|
|
offset = mov_buffer_tell(&mov->io);
|
||
|
|
mov_buffer_w32(&mov->io, 0); /* size */
|
||
|
|
mov_buffer_w32(&mov->io, mov->track->tag); // "h264"
|
||
|
|
|
||
|
|
mov_buffer_w32(&mov->io, 0); /* Reserved */
|
||
|
|
mov_buffer_w16(&mov->io, 0); /* Reserved */
|
||
|
|
mov_buffer_w16(&mov->io, entry->data_reference_index); /* Data-reference index */
|
||
|
|
|
||
|
|
mov_buffer_w16(&mov->io, 0); /* Reserved / Codec stream version */
|
||
|
|
mov_buffer_w16(&mov->io, 0); /* Reserved / Codec stream revision (=0) */
|
||
|
|
mov_buffer_w32(&mov->io, 0); /* Reserved */
|
||
|
|
mov_buffer_w32(&mov->io, 0); /* Reserved */
|
||
|
|
mov_buffer_w32(&mov->io, 0); /* Reserved */
|
||
|
|
|
||
|
|
mov_buffer_w16(&mov->io, entry->u.visual.width); /* Video width */
|
||
|
|
mov_buffer_w16(&mov->io, entry->u.visual.height); /* Video height */
|
||
|
|
mov_buffer_w32(&mov->io, 0x00480000); /* Horizontal resolution 72dpi */
|
||
|
|
mov_buffer_w32(&mov->io, 0x00480000); /* Vertical resolution 72dpi */
|
||
|
|
mov_buffer_w32(&mov->io, 0); /* reserved / Data size (= 0) */
|
||
|
|
mov_buffer_w16(&mov->io, 1); /* Frame count (= 1) */
|
||
|
|
|
||
|
|
// ISO 14496-15:2017 AVCC \012AVC Coding
|
||
|
|
// ISO 14496-15:2017 HVCC \013HEVC Coding
|
||
|
|
//mov_buffer_w8(&mov->io, 0 /*strlen(compressor_name)*/); /* compressorname */
|
||
|
|
mov_buffer_write(&mov->io, compressorname, 32); // fill empty
|
||
|
|
|
||
|
|
// ISO/IEC 14496-15:2017 4.5 Template field used (19)
|
||
|
|
// 0x18 - the video sequence is in color with no alpha
|
||
|
|
// 0x28 - the video sequence is in grayscale with no alpha
|
||
|
|
// 0x20 - the video sequence has alpha (gray or color)
|
||
|
|
mov_buffer_w16(&mov->io, 0x18); /* Reserved */
|
||
|
|
mov_buffer_w16(&mov->io, 0xffff); /* Reserved */
|
||
|
|
|
||
|
|
if(MOV_OBJECT_H264 == entry->object_type_indication)
|
||
|
|
size += mov_write_avcc(mov);
|
||
|
|
else if (MOV_OBJECT_H265 == entry->object_type_indication)
|
||
|
|
size += mov_write_hvcc(mov);
|
||
|
|
else if (MOV_OBJECT_H266 == entry->object_type_indication)
|
||
|
|
size += mov_write_vvcc(mov);
|
||
|
|
else if (MOV_OBJECT_MP4V == entry->object_type_indication || MOV_OBJECT_JPEG == entry->object_type_indication || MOV_OBJECT_PNG == entry->object_type_indication || MOV_OBJECT_JPEG2000 == entry->object_type_indication)
|
||
|
|
size += mov_write_esds(mov);
|
||
|
|
else if (MOV_OBJECT_AV1 == entry->object_type_indication)
|
||
|
|
size += mov_write_av1c(mov);
|
||
|
|
else if (MOV_OBJECT_VP8 == entry->object_type_indication || MOV_OBJECT_VP9 == entry->object_type_indication)
|
||
|
|
size += mov_write_vpcc(mov);
|
||
|
|
|
||
|
|
//size += mov_write_btrt(mov, entry);
|
||
|
|
mov_write_size(mov, offset, size); /* update size */
|
||
|
|
return size;
|
||
|
|
}
|
||
|
|
|
||
|
|
static size_t mov_write_audio(const struct mov_t* mov, const struct mov_sample_entry_t* entry)
|
||
|
|
{
|
||
|
|
size_t size;
|
||
|
|
uint64_t offset;
|
||
|
|
|
||
|
|
size = 8 /* Box */ + 8 /* SampleEntry */ + 20 /* AudioSampleEntry */;
|
||
|
|
|
||
|
|
offset = mov_buffer_tell(&mov->io);
|
||
|
|
mov_buffer_w32(&mov->io, 0); /* size */
|
||
|
|
mov_buffer_w32(&mov->io, mov->track->tag); // "mp4a"
|
||
|
|
|
||
|
|
mov_buffer_w32(&mov->io, 0); /* Reserved */
|
||
|
|
mov_buffer_w16(&mov->io, 0); /* Reserved */
|
||
|
|
mov_buffer_w16(&mov->io, 1); /* Data-reference index */
|
||
|
|
|
||
|
|
/* SoundDescription */
|
||
|
|
mov_buffer_w16(&mov->io, 0); /* Version */
|
||
|
|
mov_buffer_w16(&mov->io, 0); /* Revision level */
|
||
|
|
mov_buffer_w32(&mov->io, 0); /* Reserved */
|
||
|
|
|
||
|
|
mov_buffer_w16(&mov->io, entry->u.audio.channelcount); /* channelcount */
|
||
|
|
mov_buffer_w16(&mov->io, entry->u.audio.samplesize); /* samplesize */
|
||
|
|
|
||
|
|
mov_buffer_w16(&mov->io, 0); /* pre_defined */
|
||
|
|
mov_buffer_w16(&mov->io, 0); /* reserved / packet size (= 0) */
|
||
|
|
|
||
|
|
// https://www.opus-codec.org/docs/opus_in_isobmff.html
|
||
|
|
// 4.3 Definitions of Opus sample
|
||
|
|
// OpusSampleEntry:
|
||
|
|
// 1. The samplesize field shall be set to 16.
|
||
|
|
// 2. The samplerate field shall be set to 48000<<16.
|
||
|
|
mov_buffer_w32(&mov->io, entry->u.audio.samplerate); /* samplerate */
|
||
|
|
|
||
|
|
if(MOV_OBJECT_AAC == entry->object_type_indication || MOV_OBJECT_MP3 == entry->object_type_indication || MOV_OBJECT_MP1A == entry->object_type_indication)
|
||
|
|
size += mov_write_esds(mov);
|
||
|
|
else if(MOV_OBJECT_OPUS == entry->object_type_indication)
|
||
|
|
size += mov_write_dops(mov);
|
||
|
|
|
||
|
|
//size += mov_write_btrt(mov, entry);
|
||
|
|
mov_write_size(mov, offset, size); /* update size */
|
||
|
|
return size;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int mov_write_subtitle(const struct mov_t* mov, const struct mov_sample_entry_t* entry)
|
||
|
|
{
|
||
|
|
int size;
|
||
|
|
uint64_t offset;
|
||
|
|
|
||
|
|
size = 8 /* Box */ + 8 /* SampleEntry */;
|
||
|
|
|
||
|
|
offset = mov_buffer_tell(&mov->io);
|
||
|
|
mov_buffer_w32(&mov->io, 0); /* size */
|
||
|
|
mov_buffer_w32(&mov->io, mov->track->tag); // "tx3g"
|
||
|
|
|
||
|
|
mov_buffer_w32(&mov->io, 0); /* Reserved */
|
||
|
|
mov_buffer_w16(&mov->io, 0); /* Reserved */
|
||
|
|
mov_buffer_w16(&mov->io, entry->data_reference_index); /* Data-reference index */
|
||
|
|
|
||
|
|
if (MOV_TAG('t', 'x', '3', 'g') == mov->track->tag)
|
||
|
|
{
|
||
|
|
size += mov_write_tx3g(mov);
|
||
|
|
}
|
||
|
|
else if (entry->extra_data_size > 0) // unknown type
|
||
|
|
{
|
||
|
|
mov_buffer_write(&mov->io, entry->extra_data, entry->extra_data_size);
|
||
|
|
size += entry->extra_data_size;
|
||
|
|
|
||
|
|
size += mov_write_btrt(mov, entry);
|
||
|
|
}
|
||
|
|
|
||
|
|
mov_write_size(mov, offset, size); /* update size */
|
||
|
|
return size;
|
||
|
|
}
|
||
|
|
|
||
|
|
size_t mov_write_stsd(const struct mov_t* mov)
|
||
|
|
{
|
||
|
|
uint32_t i;
|
||
|
|
size_t size;
|
||
|
|
uint64_t offset;
|
||
|
|
const struct mov_track_t* track = mov->track;
|
||
|
|
|
||
|
|
size = 12 /* full box */ + 4 /* entry count */;
|
||
|
|
|
||
|
|
offset = mov_buffer_tell(&mov->io);
|
||
|
|
mov_buffer_w32(&mov->io, 0); /* size */
|
||
|
|
mov_buffer_write(&mov->io, "stsd", 4);
|
||
|
|
mov_buffer_w32(&mov->io, 0); /* version & flags */
|
||
|
|
mov_buffer_w32(&mov->io, track->stsd.entry_count); /* entry count */
|
||
|
|
|
||
|
|
for (i = 0; i < track->stsd.entry_count; i++)
|
||
|
|
{
|
||
|
|
((struct mov_track_t*)track)->stsd.current = &track->stsd.entries[i];
|
||
|
|
|
||
|
|
if (MOV_VIDEO == track->handler_type)
|
||
|
|
{
|
||
|
|
size += mov_write_video(mov, &track->stsd.entries[i]);
|
||
|
|
}
|
||
|
|
else if (MOV_AUDIO == track->handler_type)
|
||
|
|
{
|
||
|
|
size += mov_write_audio(mov, &track->stsd.entries[i]);
|
||
|
|
}
|
||
|
|
else if (MOV_SUBT == track->handler_type || MOV_TEXT == track->handler_type || MOV_SBTL == track->handler_type)
|
||
|
|
{
|
||
|
|
size += mov_write_subtitle(mov, &track->stsd.entries[i]);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
assert(0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
mov_write_size(mov, offset, size); /* update size */
|
||
|
|
return size;
|
||
|
|
}
|