Amcodec: codec/codec_ctrl.c File Reference

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codec/codec_ctrl.c File Reference

Codec control lib functions. More...

#include <stdio.h> #include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/poll.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <codec_error.h>
#include <codec_type.h>
#include <codec.h>
#include <audio_priv.h>
#include "codec_h_ctrl.h"
Include dependency graph for codec_ctrl.c:

Go to the source code of this file.

Defines

#define SUBTITLE_EVENT
#define TS_PACKET_SIZE   188

Functions

int codec_init (codec_para_t *pcodec)
 codec_init Initialize the codec device based on stream type
int codec_write (codec_para_t *pcodec, void *buffer, int len)
 codec_write Write data to codec device
int codec_read (codec_para_t *pcodec, void *buffer, int len)
 codec_read Read data from codec device
int codec_close (codec_para_t *pcodec)
 codec_close Close codec device
void codec_close_audio (codec_para_t *pcodec)
 codec_close_audio Close audio decoder
void codec_resume_audio (codec_para_t *pcodec, unsigned int orig)
 codec_resume_audio Resume audio decoder to work (etc, after pause)
int codec_checkin_pts (codec_para_t *pcodec, unsigned long pts)
 codec_checkin_pts Checkin pts to codec device
int codec_get_vbuf_state (codec_para_t *p, struct buf_status *buf)
 codec_get_vbuf_state Get the state of video buffer by codec device
int codec_get_abuf_state (codec_para_t *p, struct buf_status *buf)
 codec_get_abuf_state Get the state of audio buffer by codec device
int codec_get_vdec_state (codec_para_t *p, struct vdec_status *vdec)
 codec_get_vdec_state Get the state of video decoder by codec device
int codec_get_adec_state (codec_para_t *p, struct adec_status *adec)
 codec_get_adec_state Get the state of audio decoder by codec device
int codec_pause (codec_para_t *p)
 codec_pause Pause all playing(A/V) by codec device
int codec_resume (codec_para_t *p)
 codec_resume Resume playing(A/V) by codec device
int codec_reset (codec_para_t *p)
 codec_reset Reset codec device
int codec_init_sub (codec_para_t *pcodec)
 codec_init_sub Initialize subtile codec device
int codec_open_sub_read (void)
 codec_open_sub_read Open read_subtitle device which is special for read subtile data
int codec_close_sub (codec_para_t *pcodec)
 codec_close_sub Close subtile device
int codec_close_sub_fd (CODEC_HANDLE sub_fd)
 codec_close_sub_fd Close subtile device by fd
int codec_poll_sub (codec_para_t *pcodec)
 codec_poll_sub Polling subtile device if subtitle data is ready
int codec_poll_sub_fd (CODEC_HANDLE sub_fd, int timeout)
 codec_poll_sub_fd Polling subtile device if subtitle data is ready by fd
int codec_get_sub_size (codec_para_t *pcodec)
 codec_get_sub_size Get the size of subtitle data which is ready
int codec_get_sub_size_fd (CODEC_HANDLE sub_fd)
 codec_get_sub_size_fd Get the size of subtitle data which is ready by fd
int codec_read_sub_data (codec_para_t *pcodec, char *buf, unsigned int length)
 codec_read_sub_data Read subtitle data from codec device
int codec_read_sub_data_fd (CODEC_HANDLE sub_fd, char *buf, unsigned int length)
 codec_read_sub_data_fd Read subtitle data from codec device by fd
int codec_write_sub_data (codec_para_t *pcodec, char *buf, unsigned int length)
 codec_write_sub_data Write subtile data to subtitle device
int codec_init_cntl (codec_para_t *pcodec)
 codec_init_cntl Initialize the video control device
int codec_close_cntl (codec_para_t *pcodec)
 codec_close_cntl Close video control device
int codec_poll_cntl (codec_para_t *pcodec)
 codec_poll_cntl Polling video control device
int codec_get_cntl_state (codec_para_t *pcodec)
 codec_get_cntl_state Get the status of video control device, especially for trickmode
int codec_set_cntl_mode (codec_para_t *pcodec, unsigned int mode)
 codec_set_cntl_mode Set the mode to video control device, especially for trickmode
int codec_set_cntl_avthresh (codec_para_t *pcodec, unsigned int avthresh)
 codec_set_cntl_avthresh Set the AV sync threshold which defines the max time difference between A/V
int codec_set_cntl_syncthresh (codec_para_t *pcodec, unsigned int syncthresh)
 codec_set_cntl_syncthresh Set sync threshold control which defines the starting system time (hold video or not) when playing
int codec_reset_audio (codec_para_t *pcodec)
 codec_reset_audio Reset audio decoder, especially for audio switch
int codec_reset_subtile (codec_para_t *pcodec)
 codec_reset_subtile Reset subtitle device, especially for subtitle swith
int codec_set_audio_pid (codec_para_t *pcodec)
 codec_set_audio_id Set audio pid by codec device
int codec_set_sub_id (codec_para_t *pcodec)
 codec_set_sub_id Set subtitle pid by codec device
int codec_audio_reinit (codec_para_t *pcodec)
 codec_audio_reinit Re-initialize audio codec
int codec_set_dec_reset (codec_para_t *pcodec)
 codec_set_dec_reset Set decoder reset flag when reset

Detailed Description

Codec control lib functions.

Author:
Zhou Zhi <[email protected]>
Version:
1.0.0
Date:
2011-02-24

Definition in file codec_ctrl.c.

Function Documentation

int codec_audio_reinit ( codec_para_t *  pcodec  ) 

codec_audio_reinit Re-initialize audio codec

Parameters:
[in] pcodec Pointer of codec parameter structure
Returns:
0 for success, or fail type if < 0

Definition at line 1395 of file codec_ctrl.c.

int codec_checkin_pts ( codec_para_t *  pcodec,
unsigned long  pts 
)

codec_checkin_pts Checkin pts to codec device

Parameters:
[in] pcodec Pointer of codec parameter structure
[in] pts Pts to be checked in
Returns:
0 for success, or fail type

Definition at line 750 of file codec_ctrl.c.

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int codec_close ( codec_para_t *  pcodec  ) 

codec_close Close codec device

Parameters:
[in] pcodec Pointer of codec parameter structure
Returns:
0 for success, or fail type if < 0

Definition at line 694 of file codec_ctrl.c.

Referenced by codec_reset().

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void codec_close_audio ( codec_para_t *  pcodec  ) 

codec_close_audio Close audio decoder

Parameters:
[in] pcodec Pointer of codec parameter structure

Definition at line 714 of file codec_ctrl.c.

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int codec_close_cntl ( codec_para_t *  pcodec  ) 

codec_close_cntl Close video control device

Parameters:
[in] pcodec Pointer of codec parameter structure
Returns:
Success or fail error type

Definition at line 1227 of file codec_ctrl.c.

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int codec_close_sub ( codec_para_t *  pcodec  ) 

codec_close_sub Close subtile device

Parameters:
[in] pcodec Pointer of codec parameter structure
Returns:
Success or fail error type

Definition at line 987 of file codec_ctrl.c.

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int codec_close_sub_fd ( CODEC_HANDLE  sub_fd  ) 

codec_close_sub_fd Close subtile device by fd

Parameters:
[in] sub_fd subtile device fd
Returns:
0 for success, or fail type if < 0

Definition at line 1004 of file codec_ctrl.c.

Referenced by codec_close().

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int codec_get_abuf_state ( codec_para_t *  p,
struct buf_status *  buf 
)

codec_get_abuf_state Get the state of audio buffer by codec device

Parameters:
[in] p Pointer of codec parameter structure
[out] buf Pointer of buffer status structure to get audio buffer state
Returns:
Success or fail type

Definition at line 784 of file codec_ctrl.c.

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int codec_get_adec_state ( codec_para_t *  p,
struct adec_status *  adec 
)

codec_get_adec_state Get the state of audio decoder by codec device

Parameters:
[in] p Pointer of codec parameter structure
[out] adec Pointer of audio decoder status structure
Returns:
Success or fail type

Definition at line 825 of file codec_ctrl.c.

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int codec_get_cntl_state ( codec_para_t *  pcodec  ) 

codec_get_cntl_state Get the status of video control device, especially for trickmode

Parameters:
[in] pcodec Pointer of codec parameter structure
Returns:
Video control device status or fail error type

Definition at line 1267 of file codec_ctrl.c.

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int codec_get_sub_size ( codec_para_t *  pcodec  ) 

codec_get_sub_size Get the size of subtitle data which is ready

Parameters:
[in] pcodec Pointer of codec parameter structure
Returns:
Subtile ready data size, or fail error type if < 0

Definition at line 1065 of file codec_ctrl.c.

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int codec_get_sub_size_fd ( CODEC_HANDLE  sub_fd  ) 

codec_get_sub_size_fd Get the size of subtitle data which is ready by fd

Parameters:
[in] sub_fd Subtitle device fd
Returns:
Subtile ready data size, or fail error type if < 0

Definition at line 1091 of file codec_ctrl.c.

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int codec_get_vbuf_state ( codec_para_t *  p,
struct buf_status *  buf 
)

codec_get_vbuf_state Get the state of video buffer by codec device

Parameters:
[in] p Pointer of codec parameter structure
[out] buf Pointer of buffer status structure to get video buffer state
Returns:
Success or fail type

Definition at line 766 of file codec_ctrl.c.

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int codec_get_vdec_state ( codec_para_t *  p,
struct vdec_status *  vdec 
)

codec_get_vdec_state Get the state of video decoder by codec device

Parameters:
[in] p Pointer of codec parameter structure
[out] vdec Pointer of video decoder status structure
Returns:
Success or fail type

Definition at line 803 of file codec_ctrl.c.

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int codec_init ( codec_para_t *  pcodec  ) 

codec_init Initialize the codec device based on stream type

Parameters:
[in] pcodec Pointer of codec parameter structure
Returns:
Success or fail error type

Definition at line 607 of file codec_ctrl.c.

Referenced by codec_reset().

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int codec_init_cntl ( codec_para_t *  pcodec  ) 

codec_init_cntl Initialize the video control device

Parameters:
[in] pcodec Pointer of codec parameter structure
Returns:
Success or fail error type

Definition at line 1204 of file codec_ctrl.c.

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int codec_init_sub ( codec_para_t *  pcodec  ) 

codec_init_sub Initialize subtile codec device

Parameters:
[in] pcodec Pointer of codec parameter structure
Returns:
Success or fail error type

Definition at line 943 of file codec_ctrl.c.

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int codec_open_sub_read ( void   ) 

codec_open_sub_read Open read_subtitle device which is special for read subtile data

Returns:
Device handler, or error type if < 0

Definition at line 965 of file codec_ctrl.c.

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int codec_pause ( codec_para_t *  p  ) 

codec_pause Pause all playing(A/V) by codec device

Parameters:
[in] p Pointer of codec parameter structure
Returns:
Success or fail error type

Definition at line 873 of file codec_ctrl.c.

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int codec_poll_cntl ( codec_para_t *  pcodec  ) 

codec_poll_cntl Polling video control device

Parameters:
[in] pcodec Pointer of codec parameter structure
Returns:
Polling results

Definition at line 1244 of file codec_ctrl.c.

int codec_poll_sub ( codec_para_t *  pcodec  ) 

codec_poll_sub Polling subtile device if subtitle data is ready

Parameters:
[in] pcodec Pointer of codec parameter structure
Returns:
Polling result

Definition at line 1018 of file codec_ctrl.c.

int codec_poll_sub_fd ( CODEC_HANDLE  sub_fd,
int  timeout 
)

codec_poll_sub_fd Polling subtile device if subtitle data is ready by fd

Parameters:
[in] sub_fd Subtitle device fd
[in] timeout Timeout for polling
Returns:
Polling result

Definition at line 1042 of file codec_ctrl.c.

int codec_read ( codec_para_t *  pcodec,
void *  buffer,
int  len 
)

codec_read Read data from codec device

Parameters:
[in] pcodec Pointer of codec parameter structure
[out] buffer Buffer for data read from codec device
[in] len Length of the data to be read
Returns:
Length of the read data, or fail if < 0

Definition at line 680 of file codec_ctrl.c.

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int codec_read_sub_data ( codec_para_t *  pcodec,
char *  buf,
unsigned int  length 
)

codec_read_sub_data Read subtitle data from codec device

Parameters:
[in] pcodec Pointer of codec parameter structure
[out] buf Buffer for data read from subtitle codec device
[in] length Data length to be read from subtitle codec device
Returns:
0 for success, or fail type if < 0

Definition at line 1119 of file codec_ctrl.c.

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int codec_read_sub_data_fd ( CODEC_HANDLE  sub_fd,
char *  buf,
unsigned int  length 
)

codec_read_sub_data_fd Read subtitle data from codec device by fd

Parameters:
[in] sub_fd Subtitle device fd
[out] buf Buffer for data read from subtitle codec device
[in] length Data length to be read from subtile codec device
Returns:
0 for success, or fail type if < 0

Definition at line 1152 of file codec_ctrl.c.

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int codec_reset ( codec_para_t *  p  ) 

codec_reset Reset codec device

Parameters:
[in] p Pointer of codec parameter structure
Returns:
Success or fail error type

Definition at line 922 of file codec_ctrl.c.

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int codec_reset_audio ( codec_para_t *  pcodec  ) 

codec_reset_audio Reset audio decoder, especially for audio switch

Parameters:
[in] pcodec Pointer of codec parameter structure
Returns:
0 for success, or fail type if < 0

Definition at line 1339 of file codec_ctrl.c.

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int codec_reset_subtile ( codec_para_t *  pcodec  ) 

codec_reset_subtile Reset subtitle device, especially for subtitle swith

Parameters:
[in] pcodec Pointer of codec parameter structure
Returns:
0 for success, or fail type if < 0

Definition at line 1353 of file codec_ctrl.c.

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int codec_resume ( codec_para_t *  p  ) 

codec_resume Resume playing(A/V) by codec device

Parameters:
[in] p Pointer of codec parameter structure
Returns:
Success or fail error type

Definition at line 897 of file codec_ctrl.c.

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void codec_resume_audio ( codec_para_t *  pcodec,
unsigned int  orig 
)

codec_resume_audio Resume audio decoder to work (etc, after pause)

Parameters:
[in] pcodec Pointer of codec parameter structure
[in] orig Original audio status (has audio or not)

Definition at line 731 of file codec_ctrl.c.

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int codec_set_audio_pid ( codec_para_t *  pcodec  ) 

codec_set_audio_id Set audio pid by codec device

Parameters:
[in] pcodec Pointer of codec parameter structure
Returns:
0 for success, or fail type if < 0

Definition at line 1367 of file codec_ctrl.c.

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int codec_set_cntl_avthresh ( codec_para_t *  pcodec,
unsigned int  avthresh 
)

codec_set_cntl_avthresh Set the AV sync threshold which defines the max time difference between A/V

Parameters:
[in] pcodec Pointer of codec parameter structure
[in] avthresh Threshold to be set
Returns:
0 for success, or fail type if < 0

Definition at line 1309 of file codec_ctrl.c.

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int codec_set_cntl_mode ( codec_para_t *  pcodec,
unsigned int  mode 
)

codec_set_cntl_mode Set the mode to video control device, especially for trickmode

Parameters:
[in] pcodec Pointer of codec parameter structure
[in] mode Trick mode to be set
Returns:
0 for success, or fail type if < 0

Definition at line 1294 of file codec_ctrl.c.

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int codec_set_cntl_syncthresh ( codec_para_t *  pcodec,
unsigned int  syncthresh 
)

codec_set_cntl_syncthresh Set sync threshold control which defines the starting system time (hold video or not) when playing

Parameters:
[in] pcodec Pointer of codec parameter structure
[in] syncthresh Sync threshold control
Returns:
0 for success, or fail type if < 0

Definition at line 1325 of file codec_ctrl.c.

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int codec_set_dec_reset ( codec_para_t *  pcodec  ) 

codec_set_dec_reset Set decoder reset flag when reset

Parameters:
[in] pcodec Pointer of codec parameter structure
Returns:
0 for success, or fail type if < 0

Definition at line 1409 of file codec_ctrl.c.

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int codec_set_sub_id ( codec_para_t *  pcodec  ) 

codec_set_sub_id Set subtitle pid by codec device

Parameters:
[in] pcodec Pointer of codec parameter structure
Returns:
0 for success, or fail type if < 0

Definition at line 1381 of file codec_ctrl.c.

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int codec_write ( codec_para_t *  pcodec,
void *  buffer,
int  len 
)

codec_write Write data to codec device

Parameters:
[in] pcodec Pointer of codec parameter structure
[in] buffer Buffer for data to be written
[in] len Length of the data to be written
Returns:
Length of the written data, or fail if < 0

Definition at line 664 of file codec_ctrl.c.

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int codec_write_sub_data ( codec_para_t *  pcodec,
char *  buf,
unsigned int  length 
)

codec_write_sub_data Write subtile data to subtitle device

Parameters:
[in] pcodec Pointer of codec parameter structure
[in] buf Buffer for data to be written
[in] length Length of the dat to be written
Returns:
Write length, or fail type if < 0

Definition at line 1185 of file codec_ctrl.c.

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