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For #299, A/V init mp4 are fine.

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winlin 2017-03-05 18:44:37 +08:00
parent 886930c22a
commit 3ec9df6578
6 changed files with 461 additions and 8 deletions
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51
trunk/src/kernel/srs_kernel_mp4.hpp
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@ -64,6 +64,8 @@ class SrsMp4VideoMeidaHeaderBox;
class SrsMp4DataInformationBox;
class SrsMp4DataReferenceBox;
class SrsMp4SoundMeidaHeaderBox;
class SrsMp4MovieExtendsBox;
class SrsMp4TrackExtendsBox;
/**
* 4.2 Object Structure
@ -109,6 +111,8 @@ enum SrsMp4BoxType
SrsMp4BoxTypeMP4A = 0x6d703461, // 'mp4a'
SrsMp4BoxTypeESDS = 0x65736473, // 'esds'
SrsMp4BoxTypeUDTA = 0x75647461, // 'udta'
SrsMp4BoxTypeMVEX = 0x6d766578, // 'mvex'
SrsMp4BoxTypeTREX = 0x74726578, // 'trex'
};
/**
@ -134,6 +138,9 @@ enum SrsMp4BoxBrand
SrsMp4BoxBrandISO2 = 0x69736f32, // 'iso2'
SrsMp4BoxBrandAVC1 = 0x61766331, // 'avc1'
SrsMp4BoxBrandMP41 = 0x6d703431, // 'mp41'
SrsMp4BoxBrandISO5 = 0x69736f35, // 'iso5'
SrsMp4BoxBrandMP42 = 0x6d703432, // 'mp42'
SrsMp4BoxBrandDASH = 0x64617368, // 'dash'
};
/**
@ -321,6 +328,9 @@ public:
// Get the header of moov.
virtual SrsMp4MovieHeaderBox* mvhd();
virtual void set_mvhd(SrsMp4MovieHeaderBox* v);
// Get the movie extends header.
virtual SrsMp4MovieExtendsBox* mvex();
virtual void set_mvex(SrsMp4MovieExtendsBox* v);
// Get the first video track.
virtual SrsMp4TrackBox* video();
// Get the first audio track.
@ -395,6 +405,47 @@ enum SrsMp4TrackType
SrsMp4TrackTypeVideo = 0x02,
};
/**
* 8.8.1 Movie Extends Box (mvex)
* ISO_IEC_14496-12-base-format-2012.pdf, page 64
* This box warns readers that there might be Movie Fragment Boxes in this file. To know of all samples in the
* tracks, these Movie Fragment Boxes must be found and scanned in order, and their information logically
* added to that found in the Movie Box.
*/
class SrsMp4MovieExtendsBox : public SrsMp4Box
{
public:
SrsMp4MovieExtendsBox();
virtual ~SrsMp4MovieExtendsBox();
public:
// Get the track extends box.
virtual SrsMp4TrackExtendsBox* trex();
virtual void set_trex(SrsMp4TrackExtendsBox* v);
};
/**
* 8.8.3 Track Extends Box(trex)
* ISO_IEC_14496-12-base-format-2012.pdf, page 65
*/
class SrsMp4TrackExtendsBox : public SrsMp4FullBox
{
public:
// identifies the track; this shall be the track ID of a track in the Movie Box
uint32_t track_ID;
// these fields set up defaults used in the track fragments.
uint32_t default_sample_description_index;
uint32_t default_sample_duration;
uint32_t default_sample_size;
uint32_t default_sample_flags;
public:
SrsMp4TrackExtendsBox();
virtual ~SrsMp4TrackExtendsBox();
protected:
virtual int nb_header();
virtual int encode_header(SrsBuffer* buf);
virtual int decode_header(SrsBuffer* buf);
};
/**
* 8.3.1 Track Box (trak)
* ISO_IEC_14496-12-base-format-2012.pdf, page 32