#ifndef __DEMUXER_H #define __DEMUXER_H 1 #define MAX_PACKS 4096 #ifdef HAVE_TV_BSDBT848 #define MAX_PACK_BYTES 0x2000000 #else #define MAX_PACK_BYTES 0x800000 #endif #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_TYPE_MOV 7 #define DEMUXER_TYPE_VIVO 8 #define DEMUXER_TYPE_TV 9 #define DEMUXER_TYPE_FLI 10 #define DEMUXER_TYPE_REAL 11 #define DEMUXER_TYPE_Y4M 12 #define DEMUXER_TYPE_NUV 13 #define DEMUXER_TYPE_FILM 14 #define DEMUXER_TYPE_ROQ 15 #define DEMUXER_TYPE_MF 16 #define DEMUXER_TYPE_AUDIO 17 #define DEMUXER_TYPE_OGG 18 #define DEMUXER_TYPE_BMP 19 #define DEMUXER_TYPE_RAWAUDIO 20 #define DEMUXER_TYPE_RTP 21 #define DEMUXER_TYPE_RAWDV 22 #define DEMUXER_TYPE_PVA 23 #define DEMUXER_TYPE_SMJPEG 24 #define DEMUXER_TYPE_XMMS 25 #define DEMUXER_TYPE_RAWVIDEO 26 #define DEMUXER_TYPE_MPEG4_ES 27 #define DEMUXER_TYPE_GIF 28 #define DEMUXER_TYPE_MPEG_TS 29 #define DEMUXER_TYPE_H264_ES 30 #define DEMUXER_TYPE_MATROSKA 31 #define DEMUXER_TYPE_REALAUDIO 32 #define DEMUXER_TYPE_MPEG_TY 33 // This should always match the higest demuxer type number. // Unless you want to disallow users to force the demuxer to some types #define DEMUXER_TYPE_MIN 0 #define DEMUXER_TYPE_MAX 33 #define DEMUXER_TYPE_DEMUXERS (1<<16) // A virtual demuxer type for the network code #define DEMUXER_TYPE_PLAYLIST (2<<16) #define DEMUXER_TIME_NONE 0 #define DEMUXER_TIME_PTS 1 #define DEMUXER_TIME_FILE 2 #define DEMUXER_TIME_BPS 3 // DEMUXER control commands/answers #define DEMUXER_CTRL_NOTIMPL -1 #define DEMUXER_CTRL_DONTKNOW 0 #define DEMUXER_CTRL_OK 1 #define DEMUXER_CTRL_GUESS 2 #define DEMUXER_CTRL_GET_TIME_LENGTH 10 #define DEMUXER_CTRL_GET_PERCENT_POS 11 // Holds one packet/frame/whatever typedef struct demux_packet_st { int len; float pts; off_t pos; // position in index (AVI) or file (MPG) unsigned char* buffer; int flags; // keyframe, etc int refcount; //refcounter for the master packet, if 0, buffer can be free()d struct demux_packet_st* master; //pointer to the master packet if this one is a cloned one 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, never free() it, always use free_demux_packet(buffer_ref); float pts; // current buffer's pts int pts_bytes; // number of bytes read after last pts stamp int eof; // end of demuxed stream? (true if all buffer empty) off_t pos; // position in the input stream (file) off_t dpos; // position in the demuxed stream int pack_no; // serial number of packet int flags; // flags of current packet (keyframe etc) //--------------- 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 demux_packet_t *current;// needed for refcounting of the buffer int id; // stream ID (for multiple audio/video streams) struct demuxer_st *demuxer; // parent demuxer structure (stream handler) // ---- asf ----- demux_packet_t *asf_packet; // read asf fragments here int asf_seq; // ---- mov ----- unsigned int ss_mul,ss_div; // ---- stream header ---- void* sh; } demux_stream_t; typedef struct demuxer_info_st { char *name; char *author; char *encoder; char *comments; char *copyright; } demuxer_info_t; #define MAX_A_STREAMS 256 #define MAX_V_STREAMS 256 typedef struct demuxer_st { off_t filepos; // input stream current pos. off_t movi_start; off_t movi_end; stream_t *stream; int synced; // stream synced (used by mpeg) int type; // demuxer type: mpeg PS, mpeg ES, avi, avi-ni, avi-nini, asf int file_format; // file format: mpeg/avi/asf int seekable; // flag // demux_stream_t *audio; // audio buffer/demuxer demux_stream_t *video; // video buffer/demuxer demux_stream_t *sub; // dvd subtitle buffer/demuxer // stream headers: void* a_streams[MAX_A_STREAMS]; // audio streams (sh_audio_t) void* v_streams[MAX_V_STREAMS]; // video sterams (sh_video_t) char s_streams[32]; // dvd subtitles (flag) void* priv; // fileformat-dependent data char** info; } demuxer_t; inline static demux_packet_t* new_demux_packet(int len){ demux_packet_t* dp=(demux_packet_t*)malloc(sizeof(demux_packet_t)); dp->len=len; dp->next=NULL; dp->pts=0; dp->pos=0; dp->flags=0; dp->refcount=1; dp->master=NULL; dp->buffer=len?(unsigned char*)malloc(len+8):NULL; if(len) memset(dp->buffer+len,0,8); return dp; } inline static demux_packet_t* clone_demux_packet(demux_packet_t* pack){ demux_packet_t* dp=(demux_packet_t*)malloc(sizeof(demux_packet_t)); while(pack->master) pack=pack->master; // find the master memcpy(dp,pack,sizeof(demux_packet_t)); dp->next=NULL; dp->refcount=0; dp->master=pack; pack->refcount++; return dp; } inline static void free_demux_packet(demux_packet_t* dp){ if (dp->master==NULL){ //dp is a master packet dp->refcount--; if (dp->refcount==0){ if (dp->buffer) free(dp->buffer); free(dp); } return; } // dp is a clone: free_demux_packet(dp->master); 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 free_demuxer_stream(demux_stream_t *ds); void free_demuxer(demuxer_t *demuxer); 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,off_t pos,int flags); int demux_fill_buffer(demuxer_t *demux,demux_stream_t *ds); int ds_fill_buffer(demux_stream_t *ds); inline static off_t ds_tell(demux_stream_t *ds){ return (ds->dpos-ds->buffer_size)+ds->buffer_pos; } inline static int ds_tell_pts(demux_stream_t *ds){ return (ds->pts_bytes-ds->buffer_size)+ds->buffer_pos; } int demux_read_data(demux_stream_t *ds,unsigned char* mem,int len); int demux_read_data_pack(demux_stream_t *ds,unsigned char* mem,int len); #if 1 #define demux_getc(ds) (\ (ds->buffer_posbuffer_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); float ds_get_next_pts(demux_stream_t *ds); // This is defined here because demux_stream_t ins't defined in stream.h stream_t* new_ds_stream(demux_stream_t *ds); static inline int avi_stream_id(unsigned int id){ unsigned char *p=(unsigned char *)&id; unsigned char a,b; #if WORDS_BIGENDIAN a=p[3]-'0'; b=p[2]-'0'; #else a=p[0]-'0'; b=p[1]-'0'; #endif if(a>9 || b>9) return 100; // invalid ID return a*10+b; } demuxer_t* demux_open(stream_t *stream,int file_format,int aid,int vid,int sid,char* filename); int demux_seek(demuxer_t *demuxer,float rel_seek_secs,int flags); demuxer_t* new_demuxers_demuxer(demuxer_t* vd, demuxer_t* ad, demuxer_t* sd); // AVI demuxer params: extern int index_mode; // -1=untouched 0=don't use index 1=use (geneate) index extern int force_ni; extern int pts_from_bps; extern int extension_parsing; int demux_info_add(demuxer_t *demuxer, char *opt, char *param); char* demux_info_get(demuxer_t *demuxer, char *opt); int demux_info_print(demuxer_t *demuxer); int demux_control(demuxer_t *demuxer, int cmd, void *arg); #endif extern unsigned long demuxer_get_time_length(demuxer_t *demuxer); extern int demuxer_get_percent_pos(demuxer_t *demuxer); extern int demuxer_type_by_filename(char* filename);