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refine flv codec, rename fast encoder to flv vod stream decoder

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This commit is contained in:
winlin 2014-07-05 07:40:55 +08:00
parent 032118581a
commit 8271bd657b
4 changed files with 290 additions and 277 deletions
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71
trunk/src/kernel/srs_kernel_flv.hpp
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@ -49,8 +49,9 @@ public:
virtual ~SrsFlvEncoder();
public:
/**
* initialize the underlayer file stream,
* user can initialize multiple times to encode multiple flv files.
* initialize the underlayer file stream.
* @remark user can initialize multiple times to encode multiple flv files.
* @remark, user must free the fs, flv encoder never close/free it.
*/
virtual int initialize(SrsFileWriter* fs);
public:
@ -85,21 +86,50 @@ private:
};
/**
* decode flv fast by only decoding the header and tag.
* decode flv file.
*/
class SrsFlvFastDecoder
class SrsFlvDecoder
{
private:
SrsFileReader* _fs;
private:
SrsStream* tag_stream;
public:
SrsFlvFastDecoder();
virtual ~SrsFlvFastDecoder();
SrsFlvDecoder();
virtual ~SrsFlvDecoder();
public:
/**
* initialize the underlayer file stream,
* user can initialize multiple times to encode multiple flv files.
* initialize the underlayer file stream
* @remark user can initialize multiple times to decode multiple flv files.
* @remark, user must free the fs, flv decoder never close/free it.
*/
virtual int initialize(SrsFileReader* fs);
public:
virtual int read_header(char header[9]);
virtual int read_tag_header(char* ptype, int32_t* pdata_size, u_int32_t* ptime);
virtual int read_tag_data(char* data, int32_t size);
virtual int read_previous_tag_size(char ts[4]);
};
/**
* decode flv fast by only decoding the header and tag.
* used for vod flv stream to read the header and sequence header,
* then seek to specified offset.
*/
class SrsFlvVodStreamDecoder
{
private:
SrsFileReader* _fs;
private:
SrsStream* tag_stream;
public:
SrsFlvVodStreamDecoder();
virtual ~SrsFlvVodStreamDecoder();
public:
/**
* initialize the underlayer file stream
* @remark user can initialize multiple times to decode multiple flv files.
* @remark, user must free the fs, flv decoder never close/free it.
*/
virtual int initialize(SrsFileReader* fs);
public:
@ -118,29 +148,4 @@ public:
virtual int lseek(int64_t offset);
};
/**
* decode flv file.
*/
class SrsFlvDecoder
{
private:
SrsFileReader* _fs;
private:
SrsStream* tag_stream;
public:
SrsFlvDecoder();
virtual ~SrsFlvDecoder();
public:
/**
* initialize the underlayer file stream,
* user can initialize multiple times to decode multiple flv files.
*/
virtual int initialize(SrsFileReader* fs);
public:
virtual int read_header(char header[9]);
virtual int read_tag_header(char* ptype, int32_t* pdata_size, u_int32_t* ptime);
virtual int read_tag_data(char* data, int32_t size);
virtual int read_previous_tag_size(char ts[4]);
};
#endif