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#ifndef __ST_HEADER_H
#define __ST_HEADER_H 1
// for AVIStreamHeader:
#include "wine/avifmt.h"
#ifndef _WAVEFORMATEX_
#define _WAVEFORMATEX_
typedef struct __attribute__((__packed__)) _WAVEFORMATEX {
WORD wFormatTag;
WORD nChannels;
DWORD nSamplesPerSec;
DWORD nAvgBytesPerSec;
WORD nBlockAlign;
WORD wBitsPerSample;
WORD cbSize;
} WAVEFORMATEX, *PWAVEFORMATEX, *NPWAVEFORMATEX, *LPWAVEFORMATEX;
#endif /* _WAVEFORMATEX_ */
#ifndef _BITMAPINFOHEADER_
#define _BITMAPINFOHEADER_
typedef struct __attribute__((__packed__))
{
int biSize;
int biWidth;
int biHeight;
short biPlanes;
short biBitCount;
int biCompression;
int biSizeImage;
int biXPelsPerMeter;
int biYPelsPerMeter;
int biClrUsed;
int biClrImportant;
} BITMAPINFOHEADER, *PBITMAPINFOHEADER, *LPBITMAPINFOHEADER;
typedef struct {
BITMAPINFOHEADER bmiHeader;
int bmiColors[1];
} BITMAPINFO, *LPBITMAPINFO;
#endif
// Stream headers:
typedef struct {
demux_stream_t *ds;
struct codecs_st *codec;
unsigned int format;
int inited;
float timer; // value of old a_frame
// output format:
int sample_format;
int samplerate;
int samplesize;
int channels;
int o_bps; // == samplerate*samplesize*channels (uncompr. bytes/sec)
int i_bps; // == bitrate (compressed bytes/sec)
// in buffers:
int audio_in_minsize;
char* a_in_buffer;
int a_in_buffer_len;
int a_in_buffer_size;
// out buffers:
int audio_out_minsize;
char* a_buffer;
int a_buffer_len;
int a_buffer_size;
// win32-compatible codec parameters:
AVIStreamHeader audio;
WAVEFORMATEX* wf;
// codec-specific:
void* context; // codec-specific stuff (usually HANDLE or struct pointer)
unsigned char* codecdata; // extra header data passed from demuxer to codec
int codecdata_len;
} sh_audio_t;
typedef struct {
demux_stream_t *ds;
struct codecs_st *codec;
unsigned int format;
int inited;
float timer; // value of old v_frame
// frame counters:
float num_frames; // number of frames played
int num_frames_decoded; // number of frames decoded
// output format: (set by demuxer)
float fps; // frames per second (set only if constant fps)
float frametime; // 1/fps
float aspect; // aspect ratio stored in the file (for prescaling)
int i_bps; // == bitrate (compressed bytes/sec)
int disp_w,disp_h; // display size (filled by fileformat parser)
// output driver/filters: (set by libmpcodecs core)
unsigned int outfmtidx;
void* video_out; // the video_out handle, used for this video stream
void* vfilter; // the video filter chain, used for this video stream
int vf_inited;
// win32-compatible codec parameters:
AVIStreamHeader video;
BITMAPINFOHEADER* bih;
// codec-specific:
void* context; // codec-specific stuff (usually HANDLE or struct pointer)
} sh_video_t;
// demuxer.c:
sh_audio_t* new_sh_audio(demuxer_t *demuxer,int id);
sh_video_t* new_sh_video(demuxer_t *demuxer,int id);
void free_sh_audio(sh_audio_t *sh);
void free_sh_video(sh_video_t *sh);
// video.c:
int video_read_properties(sh_video_t *sh_video);
int video_read_frame(sh_video_t* sh_video,float* frame_time_ptr,unsigned char** start,int force_fps);
#endif
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