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for #738, complete all mp4 boxes codec.

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winlin 2017-02-02 12:36:48 +08:00
parent 2ad265bd5a
commit 5a84b6ca94
2 changed files with 207 additions and 20 deletions
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35
trunk/src/kernel/srs_kernel_mp4.hpp
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@ -761,7 +761,6 @@ protected:
virtual int decode_header(SrsBuffer* buf);
};
/**
* 8.6.1.3 Composition Time to Sample Box (ctts), for Video.
* ISO_IEC_14496-12-base-format-2012.pdf, page 49
@ -872,7 +871,7 @@ protected:
};
/**
* 8.7.5 Chunk Offset Box (stco or co64), for Audio/Video.
* 8.7.5 Chunk Offset Box (stco), for Audio/Video.
* ISO_IEC_14496-12-base-format-2012.pdf, page 59
* The chunk offset table gives the index of each chunk into the containing file. There are two variants, permitting
* the use of 32-bit or 64-bit offsets. The latter is useful when managing very large presentations. At most one of
@ -883,9 +882,9 @@ class SrsMp4ChunkOffsetBox : public SrsMp4FullBox
public:
// an integer that gives the number of entries in the following table
uint32_t entry_count;
// a 32 or 64 bit integer that gives the offset of the start of a chunk into its containing
// a 32 bit integer that gives the offset of the start of a chunk into its containing
// media file.
uint64_t* entries;
uint32_t* entries;
public:
SrsMp4ChunkOffsetBox();
virtual ~SrsMp4ChunkOffsetBox();
@ -896,8 +895,32 @@ protected:
};
/**
* 8.7.3 Sample Size Boxes (stsz or stz2), for Audio/Video.
* ISO_IEC_14496-12-base-format-2012.pdf, page 57
* 8.7.5 Chunk Large Offset Box (co64), for Audio/Video.
* ISO_IEC_14496-12-base-format-2012.pdf, page 59
* The chunk offset table gives the index of each chunk into the containing file. There are two variants, permitting
* the use of 32-bit or 64-bit offsets. The latter is useful when managing very large presentations. At most one of
* these variants will occur in any single instance of a sample table.
*/
class SrsMp4ChunkLargeOffsetBox : public SrsMp4FullBox
{
public:
// an integer that gives the number of entries in the following table
uint32_t entry_count;
// a 64 bit integer that gives the offset of the start of a chunk into its containing
// media file.
uint64_t* entries;
public:
SrsMp4ChunkLargeOffsetBox();
virtual ~SrsMp4ChunkLargeOffsetBox();
protected:
virtual int nb_header();
virtual int encode_header(SrsBuffer* buf);
virtual int decode_header(SrsBuffer* buf);
};
/**
* 8.7.3.2 Sample Size Box (stsz), for Audio/Video.
* ISO_IEC_14496-12-base-format-2012.pdf, page 58
* This box contains the sample count and a table giving the size in bytes of each sample. This allows the media data
* itself to be unframed. The total number of samples in the media is always indicated in the sample count.
*/