mirror of https://github.com/mpv-player/mpv
143 lines
4.1 KiB
C
143 lines
4.1 KiB
C
|
|
#define MAX_PACKS 2048
|
|
#define MAX_PACK_BYTES 0x400000
|
|
|
|
#define DEMUXER_TYPE_UNKNOWN 0
|
|
#define DEMUXER_TYPE_MPEG_ES 1
|
|
#define DEMUXER_TYPE_MPEG_PS 2
|
|
#define DEMUXER_TYPE_AVI 3
|
|
#define DEMUXER_TYPE_AVI_NI 4
|
|
#define DEMUXER_TYPE_AVI_NINI 5
|
|
#define DEMUXER_TYPE_ASF 6
|
|
|
|
#define DEMUXER_TIME_NONE 0
|
|
#define DEMUXER_TIME_PTS 1
|
|
#define DEMUXER_TIME_FILE 2
|
|
#define DEMUXER_TIME_BPS 3
|
|
|
|
|
|
typedef struct demux_packet_st {
|
|
int len;
|
|
float pts;
|
|
int pos; // pozicio indexben (AVI) ill. fileban (MPG)
|
|
unsigned char* buffer;
|
|
struct demux_packet_st* next;
|
|
} demux_packet_t;
|
|
|
|
typedef struct {
|
|
int buffer_pos; // current buffer position
|
|
int buffer_size; // current buffer size
|
|
unsigned char* buffer; // current buffer
|
|
float pts; // current buffer's pts
|
|
int eof; // end of demuxed stream? (true if all buffer empty)
|
|
int pos; // position in the input stream (file)
|
|
int dpos; // position in the demuxed stream
|
|
//---------------
|
|
int packs; // number of packets in buffer
|
|
int bytes; // total bytes of packets in buffer
|
|
demux_packet_t *first; // read to current buffer from here
|
|
demux_packet_t *last; // append new packets from input stream to here
|
|
int id; // stream ID (for multiple audio/video streams)
|
|
int type; // stream type (currently used only for audio)
|
|
struct demuxer_st *demuxer; // parent demuxer structure (stream handler)
|
|
// ---- asf -----
|
|
demux_packet_t *asf_packet; // read asf fragments here
|
|
int asf_seq;
|
|
// ---- stream header ----
|
|
void* sh;
|
|
} demux_stream_t;
|
|
|
|
typedef struct demuxer_st {
|
|
stream_t *stream;
|
|
int synced; // stream synced (used by mpeg)
|
|
int filepos; // input stream current pos.
|
|
// int endpos; // input stream end pos. (return EOF fi filepos>endpos)
|
|
int type; // mpeg system stream, mpeg elementary s., avi raw, avi indexed
|
|
// int time_src;// time source (pts/file/bps)
|
|
unsigned int movi_start;
|
|
unsigned int movi_end;
|
|
//
|
|
demux_stream_t *audio;
|
|
demux_stream_t *video;
|
|
demux_stream_t *sub;
|
|
|
|
// index:
|
|
// AVIINDEXENTRY* idx;
|
|
void* idx;
|
|
int idx_size;
|
|
int idx_pos;
|
|
int idx_pos_a;
|
|
int idx_pos_v;
|
|
int idx_offset; // ennyit kell hozzaadni az index offset ertekekhez
|
|
|
|
// stream headers:
|
|
// sh_audio_t* a_streams[256];
|
|
// sh_video_t* v_streams[256];
|
|
void* a_streams[256];
|
|
void* v_streams[256];
|
|
char s_streams[32]; // dvd subtitles
|
|
} demuxer_t;
|
|
|
|
inline static demux_packet_t* new_demux_packet(int len){
|
|
demux_packet_t* dp=malloc(sizeof(demux_packet_t));
|
|
dp->len=len;
|
|
dp->buffer=malloc(len);
|
|
dp->next=NULL;
|
|
dp->pts=0;
|
|
dp->pos=0;
|
|
return dp;
|
|
}
|
|
|
|
inline static void free_demux_packet(demux_packet_t* dp){
|
|
free(dp->buffer);
|
|
free(dp);
|
|
}
|
|
|
|
demux_stream_t* new_demuxer_stream(struct demuxer_st *demuxer,int id);
|
|
demuxer_t* new_demuxer(stream_t *stream,int type,int a_id,int v_id,int s_id);
|
|
|
|
void ds_add_packet(demux_stream_t *ds,demux_packet_t* dp);
|
|
void ds_read_packet(demux_stream_t *ds,stream_t *stream,int len,float pts,int pos);
|
|
|
|
int demux_fill_buffer(demuxer_t *demux,demux_stream_t *ds);
|
|
int ds_fill_buffer(demux_stream_t *ds);
|
|
|
|
inline static int ds_tell(demux_stream_t *ds){
|
|
return (ds->dpos-ds->buffer_size)+ds->buffer_pos;
|
|
}
|
|
|
|
int demux_read_data(demux_stream_t *ds,unsigned char* mem,int len);
|
|
|
|
#if 1
|
|
#define demux_getc(ds) (\
|
|
(ds->buffer_pos<ds->buffer_size) ? ds->buffer[ds->buffer_pos++] \
|
|
:((!ds_fill_buffer(ds))? (-1) : ds->buffer[ds->buffer_pos++] ) )
|
|
#else
|
|
inline static int demux_getc(demux_stream_t *ds){
|
|
if(ds->buffer_pos>=ds->buffer_size){
|
|
if(!ds_fill_buffer(ds)){
|
|
// printf("DEMUX_GETC: EOF reached!\n");
|
|
return -1; // EOF
|
|
}
|
|
}
|
|
// printf("[%02X]",ds->buffer[ds->buffer_pos]);
|
|
return ds->buffer[ds->buffer_pos++];
|
|
}
|
|
#endif
|
|
|
|
void ds_free_packs(demux_stream_t *ds);
|
|
int ds_get_packet(demux_stream_t *ds,unsigned char **start);
|
|
int ds_get_packet_sub(demux_stream_t *ds,unsigned char **start);
|
|
|
|
|
|
static inline int avi_stream_id(unsigned int id){
|
|
unsigned char *p=(unsigned char *)&id;
|
|
unsigned char a,b;
|
|
a=p[0]-'0'; b=p[1]-'0';
|
|
if(a>9 || b>9) return 100; // invalid ID
|
|
return a*10+b;
|
|
}
|
|
|
|
|
|
|