4 /* for quicktime build */
5 #define MAXFRAMESAMPLES 65536
9 #ifndef __STDC_LIMIT_MACROS
10 #define __STDC_LIMIT_MACROS
16 typedef int (*zthumbnail_cb)(void *p, int trk);
17 typedef int (*zcc_text_cb)(int sid, int id, int sfrm, int efrm, const char *txt);
32 #include <linux/cdrom.h>
33 #include <sys/ioctl.h>
35 #include <sys/types.h>
37 #include <sys/syscall.h>
39 #include <linux/futex.h>
46 #define ZMPEG3_MAJOR 2
47 #define ZMPEG3_MINOR 0
48 #define ZMPEG3_RELEASE 0
49 #define ZRENDERFARM_FS_PREFIX "vfs://"
51 #define ZIO_SINGLE_ACCESS zfs_t::io_SINGLE_ACCESS
52 #define ZIO_UNBUFFERED zfs_t::io_UNBUFFERED
53 #define ZIO_NONBLOCK zfs_t::io_NONBLOCK
54 #define ZIO_SEQUENTIAL zfs_t::io_SEQUENTIAL
55 #define ZIO_THREADED zfs_t::io_THREADED
56 #define ZIO_ERRFAIL zfs_t::io_ERRFAIL
59 #define TOC_SAMPLE_OFFSETS zmpeg3_t::show_toc_SAMPLE_OFFSETS
60 #define TOC_AUDIO_INDEX zmpeg3_t::show_toc_AUDIO_INDEX
61 #define TOC_FRAME_OFFSETS zmpeg3_t::show_toc_FRAME_OFFSETS
63 #define ZMPEG3_PROC_CPUINFO "/proc/cpuinfo"
64 #if BYTE_ORDER == LITTLE_ENDIAN
65 #define ZMPEG3_LITTLE_ENDIAN 1
67 #define ZMPEG3_LITTLE_ENDIAN 0
70 // Combine the pid and the stream id into one unit
71 #define CUSTOM_ID(pid, stream_id) (((pid << 8) | stream_id) & 0xffff)
72 #define CUSTOM_ID_PID(id) (id >> 8)
73 #define CUSTOM_ID_STREAMID(id) (id & 0xff)
76 #define ZMAX(a, b) ((a) > (b) ? (a) : (b))
80 #define ZMIN(a, b) ((a) < (b) ? (a) : (b))
84 #define isizeof(x) ((int)sizeof(x))
87 #define lengthof(x) ((int)(sizeof(x)/sizeof(x[0])))
90 #define zlikely(x) __builtin_expect((x),1)
91 #define zunlikely(x) __builtin_expect((x),0)
93 #define bcd(n) ((((n)>>4)&0x0f)*10+((n)&0x0f))
95 #define new_memset(s) \
96 void *operator new(size_t n) { \
97 void * volatile t = (void*) new char[n]; \
101 void operator delete(void *t,size_t n) { \
104 void *operator new[](size_t n) { \
105 void * volatile t = (void*) new char[n]; \
109 void operator delete[](void *t,size_t n) { \
113 #define znew(T,n) ((T*)memset(new T[n],0,(n)*sizeof(T)))
114 #define zmsg(fmt) printf("%s: " fmt, __func__)
115 #define zmsgs(fmt,args...) printf("%s: " fmt, __func__, args)
116 #define zerr(fmt) fprintf(stderr,"%s:err " fmt, __func__)
117 #define zerrs(fmt,args...) fprintf(stderr,"%s:err " fmt, __func__, args)
118 #define perr(fmt) do { char msg[512]; \
119 snprintf(&msg[0],sizeof(msg), "%s: " fmt,__func__); perror(&msg[0]); \
121 #define perrs(fmt,args...) do { char msg[512]; \
122 snprintf(&msg[0],sizeof(msg), "%s: " fmt,__func__,args); perror(&msg[0]); \
139 class slice_buffer_t;
141 class slice_decoder_t;
154 // Error codes for the error_return variable
155 ERR_UNDEFINED_ERROR = 1,
156 ERR_INVALID_TOC_VERSION = 2,
157 ERR_TOC_DATE_MISMATCH = 3,
159 TOC_PREFIX = 0x544f4320,
160 // This decreases with every new version
161 TOC_VERSION = 0x000000f9,
162 ID3_PREFIX = 0x494433,
163 IFO_PREFIX = 0x44564456,
164 // First byte to read when opening a file
166 // Bytes read by mpeg3io at a time
167 MAX_IO_SIZE = 0x10000,
169 SEQ_IO_SIZE = 0xc00000,
170 MAX_TS_PROBE = 0x800000,
171 MAX_PGM_PROBE = 0x800000,
172 // Largest possible packet
174 RIFF_CODE = 0x52494646,
175 BD_PACKET_SIZE = 192,
176 TS_PACKET_SIZE = 188,
177 DVD_PACKET_SIZE = 0x800,
178 ERR_PACKET_SIZE = 0x800,
181 PROGRAM_END_CODE = 0x000001b9,
182 PACK_START_CODE = 0x000001ba,
183 SEQUENCE_START_CODE = 0x000001b3,
184 SEQUENCE_END_CODE = 0x000001b7,
185 SYSTEM_START_CODE = 0x000001bb,
187 // Maximum number of PIDs in one stream
189 PROGRAM_ASSOCIATION_TABLE = 0x00,
190 CONDITIONAL_ACCESS_TABLE = 0x01,
191 PACKET_START_CODE_PREFIX = 0x000001,
192 // NAV/PRIVATE_STREAM_2 are the same id
193 PRIVATE_STREAM_2 = 0xbf,
194 NAV_PACKET_STREAM = 0xbf,
195 NAV_PCI_BYTES = 0x3d3,
196 NAV_DSI_BYTES = 0x3f9,
199 NAV_SRI_END_OF_CELL = 0x3fffffff,
200 PADDING_STREAM = 0xbe,
201 GOP_START_CODE = 0x000001b8,
202 PICTURE_START_CODE = 0x00000100,
203 EXT_START_CODE = 0x000001b5,
204 USER_START_CODE = 0x000001b2,
205 SLICE_MIN_START = 0x00000101,
206 SLICE_MAX_START = 0x000001af,
207 AC3_START_CODE = 0x0b77,
208 PCM_START_CODE = 0x7f7f807f,
210 MAX_STREAMZ = 0x10000,
211 MAX_PACKSIZE = 262144,
212 MAX_CACHE_FRAMES = 128,
213 // Maximum number of complete subtitles to buffer in a subtitle track
214 // or number of incomplete subtitles to buffer in demuxer.
216 // Positive difference before declaring timecodes discontinuous
217 CONTIGUOUS_THRESHOLD = 10 ,
218 // Minimum number of seconds before interleaving programs
219 PROGRAM_THRESHOLD = 5 ,
220 // Number of frames difference before absolute seeking
221 SEEK_THRESHOLD = 16 ,
222 // Size of chunk of audio in table of contents
223 AUDIO_CHUNKSIZE = 0x10000 ,
224 // Minimum amount of data required to read a video header in streaming mode.
225 VIDEO_STREAM_SIZE = 0x100,
226 // Number of samples in audio history
227 AUDIO_HISTORY = 0x100000 ,
228 // max number of samples returned by decoder per input frame
229 AUDIO_MAX_DECODE = 0x800 ,
230 // Range to scan for pts after byte seek
231 PTS_RANGE = 0x100000,
233 FT_PROGRAM_STREAM = 0x0001,
234 FT_TRANSPORT_STREAM = 0x0002,
235 FT_AUDIO_STREAM = 0x0004,
236 FT_VIDEO_STREAM = 0x0008,
237 FT_IFO_FILE = 0x0010,
239 SUBTITLE_HOLD_TIME = 3,
240 CCAPTION_HOLD_TIME = 15,
244 // All color models supported for read_frame
251 // Color models for the 601 to RGB conversion
252 // 601 not implemented for scalar code
256 cmdl_601_RGBA8888=10,
258 // next 2 are supported color models for read_yuvframe
259 // also YVU420P/YVU422P with uv output_row ptrs reversed for read_frame
262 // the rest are supported color models for read_frame
272 cmdl_601_YUVA8888=23,
275 // Values for audio input/output formats
292 // Table of contents sections
293 enum toc_section_type {
294 toc_FILE_TYPE_PROGRAM=0,
295 toc_FILE_TYPE_TRANSPORT=1,
296 toc_FILE_TYPE_AUDIO=2,
297 toc_FILE_TYPE_VIDEO=3,
300 toc_STREAM_SUBTITLE=6,
315 #define ZMPEG3_ZLOCK_INIT zzlock_t()
319 int zfutex(int op, int val, timespec *time=0) {
320 return syscall(SYS_futex,&loc,op,val,time,0,0);
325 int zwake(int nwakeups);
327 int zwait() { return zwait(loc); }
328 static void zincr(volatile int &v) { /* atomic(++v) */
329 asm ( " lock incl %1\n" : "+m" (v) :: );
331 static void zdecr(volatile int &v) { /* atomic(--v) */
332 asm ( " lock decl %1\n" : "+m" (v) :: );
334 static char tdecr(volatile int &v) {
335 char ret; /* ret = atomic(--loc >= 0 ? 1 : 0) */
336 asm ( " lock decl %1\n setge %0\n" : "=r" (ret), "+m" (v) :: );
339 static char tincr(volatile int &v) {
340 char ret; /* ret = atomic(++loc > 0 ? 1 : 0) */
341 asm ( " lock incl %1\n setg %0\n" : "=r" (ret), "+m" (v) :: );
344 static int zcmpxchg(int old, int val, volatile int &v) {
346 asm volatile( " lock\n cmpxchgl %2,%1\n"
347 : "+a" (ret), "+m" (v) : "r" (val) : "memory" );
350 static int zxchg(int val, volatile int &v) {
351 asm volatile( " xchgl %0,%1\n"
352 : "+r" (val), "+m" (v) :: "memory" );
355 static int zadd(int n, volatile int &v) {
357 do { val = (old=v)+n; mod = zcmpxchg(old,val,v);
358 } while( mod != old );
361 static void zmfence() {
362 asm volatile ( " mfence\n" ::: "memory" );
365 zloc_t() : loc(-1) {}
369 class zlock_t : zloc_t {
371 friend class zblock_t;
372 friend class zrwlock_t;
374 int zunlock(int nwakeups=1);
378 int v, ret = zunlikely( (v=zcmpxchg(-1,0,loc)) >= 0 ) ? zlock(v) : 0;
382 if( zunlikely(loc < 0) ) { return zemsg1(); }
383 int v, ret = zunlikely( (v=zcmpxchg(0,-1,loc)) != 0 ) ? zunlock() : 0;
390 class zblock_t : zlock_t {
392 void block() { loc = 0; zwait(0); }
393 void unblock() { if( !loc ) { loc = -1; zwake(INT_MAX); } }
398 class zrwlock_t : zloc_t {
402 void zwrite_enter(int r); // r==0: do nothing, r>0: write_lock
403 void zwrite_leave(int r); // r<0: write_lock while read_lock
405 void enter() { zincr(loc); if( zunlikely( lk.loc >= 0 ) ) zenter(); }
406 void leave() { if( zunlikely( !tdecr(loc) ) ) zleave(); }
407 void write_enter(int r=1) { if( r ) zwrite_enter(r); }
408 void write_leave(int r=1) { if( r ) zwrite_leave(r); }
414 #define ZMPEG3_ZLOCK_INIT { PTHREAD_MUTEX_INITIALIZER, PTHREAD_COND_INITIALIZER }
418 pthread_mutex_t zlock;
420 void lock() { pthread_mutex_lock(&zlock); }
421 void unlock() { pthread_mutex_unlock(&zlock); }
422 zlock_t() { pthread_mutex_init(&zlock, 0); }
423 ~zlock_t() { pthread_mutex_destroy(&zlock); }
427 pthread_mutex_t zblock;
431 pthread_mutex_init(&zblock, 0);
432 pthread_cond_init(&cond, 0);
435 pthread_mutex_destroy(&zblock);
436 pthread_cond_destroy(&cond);
439 pthread_mutex_lock(&zblock);
440 pthread_cond_wait(&cond, &zblock);
441 pthread_mutex_unlock(&zblock);
443 void unblock() { pthread_cond_broadcast(&cond); }
446 class zrwlock_t : zlock_t {
447 volatile pthread_t blocking;
451 void wait() { pthread_cond_wait(&cond, &zlock); }
452 void wake() { pthread_cond_signal(&cond); }
453 void zwrite_enter(int r);
454 void zwrite_leave(int r);
458 void write_enter(int r=1) { if( r ) zwrite_enter(r); }
459 void write_leave(int r=1) { if( r ) zwrite_leave(r); }
460 int count() { return users; }
462 zrwlock_t() { pthread_cond_init(&cond, 0); }
463 ~zrwlock_t() { pthread_cond_destroy(&cond); }
470 // Filesystem structure
471 // We buffer in IO_SIZE buffers. Stream IO would require back
472 // buffering a buffer since the stream must be rewound for packet headers,
473 // sequence start codes, format parsing, decryption, and mpeg3cat.
477 return buffer->sync(current_byte);
490 class css_t { // Encryption object
495 typedef uint8_t key_t[5];
496 typedef uint8_t blk_t[5];
505 uint8_t ktxt[4], ctxt[10];
506 keytext_t(const uint8_t *kp, const uint8_t *cp) {
508 memcpy(&ktxt[0],kp,sizeof(ktxt));
509 memcpy(&ctxt[0],cp,sizeof(ctxt));
513 void add_key_text(const uint8_t *kp, const uint8_t *cp);
514 uint8_t *find_key_text(const uint8_t *kp);
515 int attack_pattern(uint8_t const *sec, uint8_t *key);
516 void del_keytexts(keytext_t *p);
518 void css_engine(int v,uint8_t const *input, blk_t &output);
519 void crypt_key1(int v, blk_t &key);
520 void crypt_key2(blk_t &key);
521 void crypt_bus_key(blk_t &key);
523 int authenticate_drive(key_t &key);
524 int hostauth(dvd_authinfo *ai);
525 int get_title_key(key_t &key);
526 int get_disk_key(key_t &key);
527 int validate(int do_title);
528 int validate_path(int do_title);
529 int decrypt_title_key(uint8_t *dkey, uint8_t *tkey);
535 int lba, fsz, agid, encrypted;
536 char device_path[STRLEN]; // Device where the file is located
537 uint8_t disk_key[DVD_PACKET_SIZE];
546 int get_keys(char *fpath);
547 int decrypt_packet(uint8_t *sector, int offset);
548 int crack_title_key(key_t &ckey, key_t &tkey);
551 enum access_strategy {
564 static void *reader(void *the_buffer);
566 static void *writer(void *the_buffer);
567 int64_t read_in(int64_t len);
568 int read_fin(int64_t len);
569 int wait_in(int64_t pos);
570 int seek_in(int64_t pos);
571 int seek_to(int64_t pos, int64_t len);
572 int read_to(int64_t pos);
574 zlock_t io_lock; // buffer_t access lock
575 zblock_t io_block; // buffer_t access block
576 int errs; // number of consecutive errors
577 uint8_t *data; // Readahead buffer
578 int alloc; // buffer byte allocate
579 int size; // defined bytes in buffer
580 int in; // buffer byte in, owned by read_in
581 int out; // buffer byte out
582 int64_t out_pos; // file offset next byte from last read
583 int64_t file_pos; // file position of next readable byte
584 int64_t file_nudge; // sync position offset
585 int fin; // locked version of in, synced with file_pos
586 pthread_t the_reader; // reader thread if io_THREADED
587 pthread_t the_writer; // writer thread if io_THREADED and recording
588 pthread_t owner; // for debugging
589 int restarted; // reader restarted
590 int reader_done; // reader thread termination flag
591 int writer_done; // writer thread termination flag
592 int wout; // write record file buffer byte out
593 int64_t write_pos; // file_pos written to recd_fd
594 zblock_t write_lock; // write record block
597 buffer_t(zmpeg3_t *zsrc, int access);
599 int access_type; // io_ flags
600 int paused; // reader discard data
601 int do_restart; // reader restart buffer
602 int ref_count; // number of fs_t referencing this
603 int open_count; // number of is_open fs_t
604 int fd; // unbuffered file descriptor
605 FILE *fp; // buffered file handle
606 int open_file(char *path);
609 void restart(int lk=1);
610 int64_t tell() { return out_pos; }
611 int64_t file_tell() { return file_pos; }
612 int sync(int64_t pos);
613 int errors() { return errs; }
614 uint32_t next_byte() {
617 uint32_t get_byte() {
618 uint32_t result = next_byte();
619 if( ++out >= alloc ) out = 0;
623 int read_out(uint8_t *bfr,int len);
625 return (access_type & io_UNBUFFERED) ? fd : fileno(fp);
628 if( (access_type & io_SINGLE_ACCESS) )
630 if( !data ) data = new uint8_t[alloc];
633 if( (access_type & io_SINGLE_ACCESS) )
640 int write_align(int sz);
641 void write_record(int sz, int mask);
646 int64_t current_byte; // Hypothetical position of file pointer
650 fs_t(zmpeg3_t *zsrc, const char *fpath, int access=io_UNBUFFERED+io_SINGLE_ACCESS);
651 fs_t(zmpeg3_t *zsrc, int fd, int access=io_UNBUFFERED+io_SINGLE_ACCESS);
652 fs_t(zmpeg3_t *zsrc, FILE *fp, int access=io_SINGLE_ACCESS);
657 int errors() { return buffer ? buffer->errors() : 0; }
658 int get_fd() { return buffer ? buffer->get_fd() : -1; }
659 int read_data(uint8_t *bfr, int64_t len);
662 uint32_t read_uint16();
663 uint32_t read_uint24();
664 uint32_t read_uint32();
665 uint64_t read_uint64();
666 int seek(int64_t byte);
667 int seek_relative(int64_t bytes);
668 int64_t tell() { return current_byte; }
669 int64_t eof() { return current_byte >= total_bytes; }
670 int64_t bof() { return current_byte < 0; }
671 int64_t get_total_bytes();
672 int64_t ztotal_bytes() { return total_bytes; }
674 if( ++current_byte >= buffer->file_tell() ) sync();
677 int pause_reader(int v);
678 int access() { return !buffer ? 0 : buffer->access_type; }
679 void sequential() { buffer->access_type |= io_SEQUENTIAL; }
680 int start_record(int bsz);
682 void attach(fs_t *zfs);
689 // next bit in forward direction
690 // next bit in reverse direction |
692 // ... | | | | | | | | |1|1|1|1|1|1|
701 uint32_t bfr; // bfr = buffer for bits
702 int bit_number; // position of pointer in bfr
703 int bfr_size; // number of bits in bfr. Should always be a multiple of 8
704 demuxer_t *demuxer; // Mpeg2 demuxer
705 uint8_t *input_ptr; // when input_ptr!=0, data is read from it instead of the demuxer.
707 bits_t(zmpeg3_t *zsrc, demuxer_t *demux);
709 int read_buffer(uint8_t *buffer, int byte);
710 void use_ptr(uint8_t *buffer);
711 int eos(uint8_t *ptr) {
712 return input_ptr - (bit_number+7)/8 >= ptr;
714 int eos(uint8_t *ptr,int bits) {
715 int n = bits - bit_number;
716 if( n <= 0 ) return 0;
717 return input_ptr + (n+7)/8 > ptr;
720 void start_reverse();
721 void start_forward();
724 int refill() { return input_ptr ? refill_ptr() : refill_noptr(); }
725 int refill_reverse();
726 int open_title(int title);
727 int seek_byte(int64_t position);
728 void reset() { bfr_size = bit_number = 0; }
729 void reset(uint32_t v) { bfr = v; bfr_size = bit_number = 32; }
730 int get_bit_offset() { return bit_number & 7; }
731 void prev_byte_align() { bit_number = (bit_number+7) & ~7; }
732 void next_byte_align() { bit_number &= ~7; }
733 int bof() { return demuxer->zdata.bof() && demuxer->bof(); }
734 int eof() { return demuxer->zdata.eof() && demuxer->eof(); }
735 int error() { return demuxer->error(); }
737 int next_code(uint32_t zcode);
738 int prev_code(uint32_t zcode);
739 int next_start_code();
740 void pack_bits(uint32_t v, int n) {
741 bfr = (bfr << n) | v;
742 if( (bfr_size+=n) > (int)(8*sizeof(bfr)) )
743 bfr_size = 8*sizeof(bfr);
746 void pack_8bits(uint32_t v) { pack_bits(v, 8); }
747 void fill_bits_ptr(int bits) {
748 while( bit_number < bits ) { pack_8bits(*input_ptr++); }
750 void fill_bits_noptr(int bits) {
751 while( bit_number < bits ) { pack_8bits(demuxer->read_char()); }
753 void fill_bits(int bits) {
754 return input_ptr ? fill_bits_ptr(bits) : fill_bits_noptr(bits);
756 uint32_t show_bits_noptr(int bits) {
757 if( bits <= 0 ) return 0;
758 fill_bits_noptr(bits);
759 return (bfr >> (bit_number-bits)) & (0xffffffff >> (32-bits));
761 uint32_t show_bit_noptr(int bits) { return show_bits_noptr(1); }
762 uint32_t show_byte_noptr() { return show_bits_noptr(8); }
763 uint32_t show_bits24_noptr() { return show_bits_noptr(24); }
764 uint32_t show_bits32_noptr() { fill_bits_noptr(32); return bfr; }
765 int show_bits(int bits) {
766 if( bits <= 0 ) return 0;
768 return (bfr >> (bit_number-bits)) & (0xffffffff >> (32-bits));
770 uint32_t get_bits_noptr(int bits) {
771 uint32_t result = show_bits_noptr(bits);
775 uint32_t get_bit_noptr() { return get_bits_noptr(1); }
776 int get_bits(int bits) {
777 uint32_t result = show_bits(bits);
781 uint32_t get_byte_noptr() { return get_bits_noptr(8); }
782 uint32_t get_bits24_noptr() { return get_bits_noptr(24); }
783 void fill_bits_reverse(int bits) {
784 int n = (bit_number & ~7);
785 if( n ) { bfr >>= n; bfr_size -= n; bit_number -= n; }
786 n = bit_number + bits;
787 while( bfr_size < n ) {
788 uint32_t prev_byte = input_ptr ?
789 *--input_ptr : demuxer->read_prev_char();
790 bfr |= prev_byte << bfr_size;
794 int show_bits_reverse(int bits) {
795 fill_bits_reverse(bits);
796 return (bfr >> bit_number) & (0xffffffff >> (32 - bits));
798 int get_bits_reverse(int bits) {
799 uint32_t result = show_bits_reverse(bits);
809 float **index_data; // Buffer of frames for index. A frame is a high/low pair.
810 int index_allocated; // Number of frames allocated in each index channel.
811 int index_channels; // Number of index channels allocated
812 int index_size; // Number of high/low pairs in index channel
813 int index_zoom; // Downsampling of index buffers when constructing index
823 static bitfont_t *fonts[];
824 static int total_fonts;
825 static int font_refs;
826 static void init_fonts();
827 static void destroy_fonts();
828 class static_init_t {
837 int16_t ascent, decent;
840 int16_t nch, idx, idy, imy;
842 static bitfont_t *bitfont(int style,int pen_size,int italics,int size);
860 class imdct_complex_t;
861 class imdct_al_table_t;
862 class audio_decoder_layer_t;
863 class audio_decoder_ac3_t;
864 class audio_decoder_pcm_t;
865 class ac3audblk_t; /*???*/
870 MAXFRAMESAMPLEZ = MAXFRAMESAMPLES,
871 HDRCMPMASK = 0xfffffd00,
875 MPEG3AUDIO_PADDING = 1024,
876 MAX_AC3_FRAMESIZE = 1920 * 2 + 512,
879 enum exponent_type { // Exponent strategy constants
886 enum delta_type { // Delta bit allocation constants
893 enum mpg_md { // Values for mode
900 enum { PCM_HEADERSIZE = 20, };
903 id3_IDLE=0, // No ID3 tag found
904 id3_HEADER=1, // Reading header
905 id3_SKIP=2, // Skipping ID3 tag
909 class imdct_complex_t {
915 class imdct_al_table_t {
927 uint32_t part2_3_length;
929 uint32_t scalefac_compress;
931 uint32_t mixed_block_flag;
932 uint32_t table_select[3];
933 uint32_t subblock_gain[3];
937 uint32_t region1start;
938 uint32_t region2start;
940 uint32_t scalefac_scale;
941 uint32_t count1table_select;
946 class l3_sideinfo_t {
948 uint32_t main_data_begin;
949 uint32_t private_bits;
950 class { public: l3_info_t gr[2]; } ch[2];
953 class audio_decoder_layer_t {
954 static int tabsel_123[2][3][16];
955 static long freqs[9];
956 static float decwin[512 + 32];
957 static float cos64[16], cos32[8], cos16[4], cos8[2], cos4[1];
958 static float *pnts[5];
959 static int grp_3tab[32 * 3]; /* used: 27 */
960 static int grp_5tab[128 * 3]; /* used: 125 */
961 static int grp_9tab[1024 * 3]; /* used: 729 */
962 static float muls[27][64]; /* also used by layer 1 */
963 static float gainpow2[256 + 118 + 4];
964 static long intwinbase[257];
965 static float ispow[8207];
966 static float aa_ca[8], aa_cs[8];
967 static float win[4][36];
968 static float win1[4][36];
969 static float COS1[12][6];
970 static float COS9[9];
971 static float COS6_1, COS6_2;
972 static float tfcos36[9];
973 static float tfcos12[3];
974 static float cos9[3], cos18[3];
975 static float tan1_1[16], tan2_1[16], tan1_2[16], tan2_2[16];
976 static float pow1_1[2][16], pow2_1[2][16];
977 static float pow1_2[2][16], pow2_2[2][16];
978 static int longLimit[9][23];
979 static int shortLimit[9][14];
980 static class bandInfoStruct {
982 int longIdx[23], longDiff[22];
983 int shortIdx[14], shortDiff[13];
985 static int mapbuf0[9][152];
986 static int mapbuf1[9][156];
987 static int mapbuf2[9][44];
988 static int *map[9][3];
989 static int *mapend[9][3];
990 static uint32_t n_slen2[512]; /* MPEG 2.0 slen for 'normal' mode */
991 static uint32_t i_slen2[256]; /* MPEG 2.0 slen for intensity stereo */
993 static short tab0 [ 1], tab1 [ 7], tab2 [17], tab3[ 17];
994 static short tab5 [ 31], tab6 [ 31], tab7 [71], tab8[ 71];
995 static short tab9 [ 71], tab10[127], tab11[127], tab12[127];
996 static short tab13[511], tab15[511], tab16[511], tab24[511];
997 static short tab_c0[31], tab_c1[31];
998 static class huffman_t {
1000 unsigned int linbits;
1004 static int dct64_1(float *out0,float *out1,float *b1,float *b2,
1006 static int dct64(float *a,float *b,float *c);
1007 static int dct36(float *inbuf,float *o1,float *o2,float *wintab,
1009 static int dct12(float *in,float *rawout1,float *rawout2,float *wi,
1012 int get_scale_factors_1(int *scf,l3_info_t *l3_info,int ch,int gr);
1013 int get_scale_factors_2(int *scf,l3_info_t *l3_info,int i_stereo);
1014 int dequantize_sample(float xr[SBLIMIT][SSLIMIT],int *scf,
1015 l3_info_t *l3_info,int sfreq,int part2bits);
1016 int get_side_info(l3_sideinfo_t *si,int channels,int ms_stereo,
1017 long sfreq,int single,int lsf);
1018 int hybrid(float fsIn[SBLIMIT][SSLIMIT],
1019 float tsOut[SSLIMIT][SBLIMIT],int ch,l3_info_t *l3_info);
1020 int antialias(float xr[SBLIMIT][SSLIMIT],l3_info_t *l3_info);
1021 int calc_i_stereo(float xr_buf[2][SBLIMIT][SSLIMIT],int *scalefac,
1022 l3_info_t *l3_info,int sfreq,int ms_stereo,int lsf);
1023 int synth_stereo(float *bandPtr,int channel,float *out, int *pnt);
1024 int init_audio(zmpeg3_t *zsrc, atrack_t *ztrack, int zformat);
1027 int step_one(uint8_t *bit_alloc, int *scale);
1028 int step_two(uint8_t *bit_alloc, float fraction[2][4][SBLIMIT],
1029 int *scale, int x1);
1034 uint8_t *bsbuf, *prev_bsbuf;
1035 uint8_t bsspace[2][MAXFRAMESIZE + 512]; // MAXFRAMESIZE
1037 // For mp3 current framesize without header. For AC3 current framesize with header.
1039 long prev_framesize, past_framesize;
1043 int sampling_frequency_code;
1044 int error_protection;
1057 // Static variable in synthesizer
1059 // Ignore first frame after a seek
1061 float synth_stereo_buffs[2][2][0x110];
1062 float synth_mono_buff[64];
1063 float mp3_block[2][2][SBLIMIT * SSLIMIT];
1066 // State of ID3 parsing
1068 int id3_current_byte;
1072 imdct_al_table_t *alloc;
1075 uint8_t layer2_scfsi_buf[64];
1078 static int layer_check(uint8_t *data);
1079 static int id3_check(uint8_t *data);
1080 int layer3_header(uint8_t *data);
1081 audio_decoder_layer_t();
1082 ~audio_decoder_layer_t();
1083 int do_layer2(uint8_t *zframe,int zframe_size,float **zoutput,int render);
1084 int do_layer3(uint8_t *zframe,int zframe_size,float **zoutput,int render);
1087 int init_decode_tables();
1090 class audio_decoder_ac3_t {
1093 static int ac3_samplerates[3];
1103 static int ac3_check(uint8_t *data);
1104 int ac3_header(uint8_t *data);
1105 int do_ac3(uint8_t *zframe, int zframe_size, float **zoutput, int render);
1106 audio_decoder_ac3_t();
1107 ~audio_decoder_ac3_t();
1110 class audio_decoder_pcm_t {
1117 int pcm_header(uint8_t *data);
1118 int do_pcm(uint8_t *zframe, int zframe_size, float **zoutput, int render);
1119 audio_decoder_pcm_t() {}
1120 ~audio_decoder_pcm_t() {}
1123 int channels; // channels from read_header
1124 int samplerate; // samplerate from read_header
1125 int framenum; // Number of current frame being decoded
1126 int framesize; // Size of frame including header
1127 int64_t start_byte; // First byte of audio data in the file
1128 int output_channels; // number of defined output buffers
1129 float **output; // Output from synthesizer in linear floats
1130 int output_size; // Number of pcm samples in the buffer
1131 int output_allocated; // Allocated number of samples in output
1132 int64_t output_position; // Sample position in file of start of output buffer
1133 int64_t sample_seek; // Perform a seek to the sample
1134 int64_t byte_seek; // Perform a seek to the absolute byte
1135 // +/- number of samples of difference between audio and video
1136 int seek_correction;
1137 // Buffer containing current packet
1138 uint8_t packet_buffer[MAXFRAMESIZE];
1139 // Position in packet buffer of next byte to read
1140 int packet_position;
1143 int init_audio(zmpeg3_t *zsrc, atrack_t *ztrack, int zformat);
1148 void update_channels();
1149 int audio_pts_padding();
1150 int audio_pts_skipping(int samples);
1151 void update_audio_history();
1152 int read_frame(int render);
1155 int seek_byte(int64_t byte);
1156 int seek_sample(long sample);
1157 int read_raw(uint8_t *output,long *size,long max_size);
1158 void shift_audio(int64_t diff);
1159 int decode_audio(void *output_v,int atyp,int channel,int len);
1160 int64_t audio_position() { return output_position + output_size; }
1174 class slice_buffer_t {
1175 static VLCtab_t DClumtab0[32];
1176 static VLCtab_t DClumtab1[16];
1177 static VLCtab_t DCchromtab0[32];
1178 static VLCtab_t DCchromtab1[32];
1181 slice_buffer_t *next; // avail list link
1182 uint8_t *data; // Buffer for holding the slice data
1183 video_t *video; // decoder
1184 int buffer_size; // Size of buffer
1185 int buffer_allocation; // Space allocated for buffer
1186 int buffer_position; // Position in buffer
1190 int eob() { return buffer_position >= buffer_size; }
1191 uint32_t get_data_byte() { return data[buffer_position++]; }
1192 void fill_bits(int nbits) {
1193 while( bits_size < nbits ) {
1195 if( !eob() ) bits |= get_data_byte();
1199 void flush_bits(int nbits) { fill_bits(nbits); bits_size -= nbits; }
1200 void flush_bit() { flush_bits(1); }
1201 uint32_t show_bits(int nbits) {
1203 return (bits >> (bits_size-nbits)) & (0xffffffff >> (32-nbits));
1205 uint32_t get_bits(int nbits) {
1206 uint32_t result = show_bits(nbits);
1210 uint32_t get_bit() { return get_bits(1); }
1213 uint8_t *expand_buffer(int bfrsz);
1214 void fill_buffer(bits_t *vstream);
1223 static uint8_t zig_zag_scan_nommx[64]; // zig-zag scan
1224 static uint8_t alternate_scan_nommx[64]; // alternate scan
1225 // default intra quantization matrix
1226 static uint8_t default_intra_quantizer_matrix[64];
1227 // Frame rate table must agree with the one in the encoder
1228 static double frame_rate_table[16];
1230 inline void recon_comp(uint8_t *s, uint8_t *d,
1231 int lx, int lx2, int h, int type);
1232 void recon(uint8_t *src[], int sfield,
1233 uint8_t *dst[], int dfield, int lx, int lx2,
1234 int w, int h, int x, int y, int dx, int dy, int addflag);
1235 int delete_decoder();
1236 void init_scantables();
1237 int read_frame_backend(int skip_bframes);
1238 int *get_scaletable(int input_w, int output_w);
1239 int get_gop_header();
1240 long gop_to_frame(timecode_t *gop_timecode);
1247 enum chroma_format {
1253 enum ext_start_code {
1271 enum picture_structure {
1273 pics_BOTTOM_FIELD=2,
1274 pics_FRAME_PICTURE=3,
1277 slice_buffer_t *slice_buffers, *avail_slice_buffers;
1278 int total_slice_buffers;
1279 void allocate_slice_buffers();
1280 void delete_slice_buffers();
1281 void reallocate_slice_buffers();
1282 zlock_t slice_lock, slice_wait, slice_active;
1283 int slice_wait_locked, slice_active_locked;
1288 // ================================= Seeking variables =========================
1290 int decoder_initted;
1291 uint8_t **output_rows; // Output frame buffer supplied by user
1292 int in_x, in_y, in_w, in_h, out_w, out_h; // Output dimensions
1294 int *x_table, *y_table; // Location of every output pixel in the input
1296 int want_yvu; // Want to return a YUV frame
1297 char *y_output, *u_output, *v_output; // Output pointers for a YUV frame
1300 int maxframe; // Max value of frame num to read
1301 int64_t byte_seek; // Perform absolute byte seek before the next frame is read
1302 int frame_seek; // Perform a frame seek before the next frame is read
1303 int framenum; // Number of the next frame to be decoded
1304 int last_number; // Last framenum rendered
1305 int ref_frames; // ref_frames since last seek
1308 timecode_t gop_timecode; // Timecode for the last GOP header read.
1309 int has_gops; // Some streams have no GOPs so try sequence start codes instead
1311 class cc_t { // close captioning (atsc only)
1313 uint8_t data[3][128]; // reorder buffers
1314 int frs_history, font_size;
1315 void decode(int idx);
1320 MX_SVC = 64, MX_WIN=8,MX_CX=48,MX_CY=16,
1321 /* frame struct history */
1322 frs_tf1 = 0x01, /* top field in data[1] */
1323 frs_bf2 = 0x02, /* bottom field in data[2] */
1324 frs_frm = 0x04, /* frame in data[1] */
1325 frs_prc = 0x08, /* frame processed */
1326 st_unmap=-1, st_hidden=0, st_visible=1, /* state */
1327 dir_rt=0, dir_lt=1, dir_up=2, dir_dn=3, /* print/scroll/effect dir */
1328 jfy_left=0, jfy_right=1, jfy_center=2, jfy_full=3, /* justify */
1329 eft_snap = 0, eft_fade = 1, eft_wipe = 2, /* effect */
1330 oty_solid=0, oty_flash=1, oty_translucent=2,
1331 oty_transparent=3, bdr_width=5, /* opacity/border width */
1332 edg_none=0, edg_raised=1, edg_depressed=2, edg_uniform=3,
1333 edg_shadow_left=4, edg_shadow_right=5, /* edge type */
1334 psz_small=0, psz_standard=1, psz_large=2, /* pen size */
1335 fst_default=0, fst_mono_serif=1, fst_prop_serif=2,
1336 fst_mono_sans=3, fst_prop_sans=4, fst_casual=5,
1337 fst_cursive=6, fst_small_caps=7, /* font style */
1338 fsz_small=0, fsz_normal=1, fsz_large=2, /* font size */
1339 tag_dialog=0, tag_source_id=1, tag_device=2,
1340 tag_dialog_2=3, tag_voiceover=4, tag_audible_transl=5,
1341 tag_subtitle_transl=6, tag_voice_descr=7, tag_lyrics=8,
1342 tag_effect_descr=9, tag_score_descr=10, tag_expletive=11,
1343 tag_not_displayable=15, /* text tag */
1344 ofs_subscript=0, ofs_normal=1, ofs_superscript=2, /* offset */
1346 /* color RGB 2:2:2 (lsb = B). */
1349 int sid, ctrk, size;
1356 uint8_t fg_opacity : 2;
1357 uint8_t fg_color : 6;
1358 uint8_t bg_opacity : 2;
1359 uint8_t bg_color : 6;
1360 uint8_t pen_size : 2;
1361 uint8_t edge_color : 6;
1362 uint8_t italics : 1;
1363 uint8_t edge_type : 3;
1364 uint8_t underline : 1;
1365 uint8_t font_style : 3;
1366 uint8_t font_size : 2;
1368 uint8_t text_tag : 4;
1372 void bfr_put(chr_t *&bfr);
1378 int8_t id, st, pdir, sdir;
1379 uint8_t cx, cy, cw, ch; /* pen/dim in bytes */
1380 int ax, ay, x, y, bw; /* anchor/pen/border in pixels */
1381 uint32_t fg_yuva, bg_yuva, edge_yuva; /* pen color */
1382 uint32_t fill_yuva, border_yuva; /* window color */
1383 int start_frame, end_frame;
1385 subtitle_t *subtitle;
1386 uint8_t anchor_point, anchor_horizontal, anchor_vertical;
1387 uint8_t anchor_relative, row_lock, col_lock, dirty;
1388 uint8_t priority, window_style, pen_style;
1389 /* pen style properties */
1390 uint8_t pen_size, font_style, offset, italics, underline;
1391 uint8_t fg_color, fg_opacity, bg_color, bg_opacity;
1392 uint8_t text_tag, edge_color, edge_type, scale;
1393 /* window style properties */
1394 uint8_t justify, wordwrap, fill_opacity, fill_color;
1395 uint8_t display_effect, effect_speed, effect_direction;
1396 uint8_t border_type, border_color, border_width;
1401 void reset(int i,svc_t *svc);
1402 int BS(); int FF(); int CR(); int HCR();
1403 int init(int ncw, int nch);
1404 int resize(int ncw, int nch);
1405 static int is_breakable(int b);
1409 void set_window_style(int i);
1410 void set_pen_style(int i);
1411 void default_window();
1412 void print_buffer();
1413 void hbar(int x, int y, int ww, int hh, int lm, int rm, int clr);
1414 void vbar(int x, int y, int ww, int hh, int tm, int bm, int clr);
1415 void border(int ilt, int olt, int irt, int ort,
1416 int iup, int oup, int idn, int odn);
1417 void put_chr(chr_t *chr);
1418 static bitfont_t *chr_font(chr_t *bp, int scale);
1421 void set_state(int8_t st);
1422 } win[MX_WIN], *curw;
1425 int id() { return sid; }
1426 int trk() { return ctrk; }
1427 void append(uint8_t *bp, int len);
1430 void reset(int sid,cc_t *cc);
1431 int CWx(int id); int DFz(int id);
1432 int DFx(int id); int RSVD(); int ETX();
1433 int BS(); int FF(); int CR(); int HCR();
1434 int RST(); int DLC(); int DLW(); int DLY();
1435 int CLW(); int DSW(); int HDW(); int TGW();
1436 int SPA(); int SPC(); int SPL(); int SWA();
1437 int command(int cmd);
1438 static uint32_t pen_yuva(int color, int opacity);
1441 cc_t(video_t *video);
1444 void get_atsc_data(bits_t *v);
1447 zcc_text_cb text_cb;
1450 int subtitle_track; // Subtitle track to composite if >= 0
1451 int show_subtitle(int strk);
1453 // These are only available from elementary streams.
1454 int frames_per_gop; // Frames per GOP after the first GOP.
1455 int first_gop_frames; // Frames in the first GOP.
1456 int first_frame; // Number of first frame stored in timecode
1457 int last_frame; // Last frame in file
1459 // ================================= Compression variables =====================
1460 // Malloced frame buffers. 2 refframes are swapped in and out.
1461 // while only 1 auxframe is used.
1462 uint8_t *yuv_buffer[5]; // Make YVU buffers contiguous for all frames
1463 uint8_t *oldrefframe[3], *refframe[3], *auxframe[3];
1464 uint8_t *llframe0[3], *llframe1[3];
1465 uint8_t *zigzag_scan_table;
1466 uint8_t *alternate_scan_table;
1467 // Source for the next frame presentation
1468 uint8_t *output_src[3];
1469 // Pointers to frame buffers.
1470 uint8_t *newframe[3];
1472 int horizontal_size, vertical_size, mb_width, mb_height;
1473 int coded_picture_width, coded_picture_height;
1474 int chroma_format, chrom_width, chrom_height, blk_cnt;
1475 int8_t pict_type, pict_struct, field_sequence, intravlc;
1476 int8_t forw_r_size, back_r_size, full_forw, full_back;
1477 int8_t prog_seq, prog_frame, repeatfirst, secondfield;
1478 int8_t h_forw_r_size, v_forw_r_size, h_back_r_size, v_back_r_size;
1479 int8_t dc_prec, topfirst, frame_pred_dct, conceal_mv;
1481 struct { int8_t got_top, got_bottom, repeat_fields, current_field; };
1482 int32_t repeat_data;
1485 int frame_time, seek_time;
1486 int stwc_table_index, llw, llh, hm, hn, vm, vn;
1487 int lltempref, llx0, lly0, llprog_frame, llfieldsel;
1488 int matrix_coefficients;
1491 int *cr_to_r, *crb_to_g, *cb_to_b;
1492 int intra_quantizer_matrix[64], non_intra_quantizer_matrix[64];
1493 int chroma_intra_quantizer_matrix[64], chroma_non_intra_quantizer_matrix[64];
1495 int skim; // skip reconstruction/motion
1496 int thumb, ithumb; // thumbnail scan/ thumbnail frame ready
1497 int qscale_type, altscan; // picture coding extension
1498 int pict_scal; // picture spatial scalable extension
1499 int scalable_mode; // sequence scalable extension
1502 uint8_t *subtitle_frame[3];
1504 video_t(zmpeg3_t *zsrc, vtrack_t *ztrack);
1507 int seek_video() { return seek(); }
1508 void reset_subtitles();
1511 int set_cpus(int cpus);
1512 int set_mmx(int use_mmx);
1514 int drop_frames(long frames, int cache_it);
1516 int read_frame(uint8_t **output_rows,
1517 int in_x, int in_y, int in_w, int in_h,
1518 int out_w, int out_h, int color_model);
1519 int read_yuvframe(char *y_output, char *u_output, char *v_output,
1520 int in_x, int in_y, int in_w, int in_h);
1521 int read_yuvframe_ptr(char **y_output, char **u_output, char **v_output);
1522 int read_raw(uint8_t *output, long *size, long max_size);
1523 int seek_frame(long frame);
1524 int seek_byte(int64_t byte);
1525 int rewind_video(int preload=1);
1526 int previous_frame();
1529 int reconstruct( int bx, int by, int mb_type, int motion_type,
1530 int PMV[2][2][2], int mv_field_sel[2][2],
1531 int dmvector[2], int stwtype);
1533 slice_buffer_t *get_slice_buffer();
1534 void put_slice_buffer(slice_buffer_t* buffer);
1535 int get_macroblocks();
1536 int display_second_field();
1537 int video_pts_padding();
1538 int video_pts_skipping();
1542 int sequence_extension();
1543 int sequence_display_extension();
1544 int quant_matrix_extension();
1545 int sequence_scalable_extension();
1546 int picture_display_extension();
1547 int picture_coding_extension();
1548 int picture_spatial_scalable_extension();
1549 int picture_temporal_scalable_extension();
1550 int ext_user_data();
1551 int get_picture_hdr();
1554 void overlay_subtitle(subtitle_t *subtitle);
1555 void decode_subtitle();
1557 int dither_frame(uint8_t *yy, uint8_t *uu, uint8_t *vv,uint8_t **output_rows);
1558 int dither_frame444(uint8_t *yy, uint8_t *uu, uint8_t *vv);
1559 int dithertop(uint8_t *yy, uint8_t *uu, uint8_t *vv);
1560 int dithertop444(uint8_t *yy, uint8_t *uu, uint8_t *vv);
1561 int ditherbot(uint8_t *yy, uint8_t *uu, uint8_t *vv);
1562 int ditherbot444(uint8_t *yy, uint8_t *uu, uint8_t *vv);
1563 int present_frame(uint8_t *yy, uint8_t *uu, uint8_t *vv);
1564 void calc_dmv(int DMV[][2],int *dmvector,int mvx,int mvy);
1565 int is_refframe() { return pict_type == pic_type_B ? 0 :
1566 pict_struct == pics_FRAME_PICTURE ? 1 : secondfield;
1571 class slice_decoder_t {
1573 static VLCtab_t PMBtab0[8];
1574 static VLCtab_t PMBtab1[8];
1575 static VLCtab_t BMBtab0[16];
1576 static VLCtab_t BMBtab1[8];
1577 static VLCtab_t spIMBtab[16];
1578 static VLCtab_t spPMBtab0[16];
1579 static VLCtab_t spPMBtab1[16];
1580 static VLCtab_t spBMBtab0[14];
1581 static VLCtab_t spBMBtab1[12];
1582 static VLCtab_t spBMBtab2[8];
1583 static VLCtab_t SNRMBtab[8];
1584 static VLCtab_t MVtab0[8];
1585 static VLCtab_t MVtab1[8];
1586 static VLCtab_t MVtab2[12];
1587 static VLCtab_t CBPtab0[32];
1588 static VLCtab_t CBPtab1[64];
1589 static VLCtab_t CBPtab2[8];
1590 static VLCtab_t MBAtab1[16];
1591 static VLCtab_t MBAtab2[104];
1593 static DCTtab_t DCTtabfirst[12];
1594 static DCTtab_t DCTtabnext[12];
1595 static DCTtab_t DCTtab0[60];
1596 static DCTtab_t DCTtab0a[252];
1597 static DCTtab_t DCTtab1[8];
1598 static DCTtab_t DCTtab1a[8];
1599 static DCTtab_t DCTtab2[16];
1600 static DCTtab_t DCTtab3[16];
1601 static DCTtab_t DCTtab4[16];
1602 static DCTtab_t DCTtab5[16];
1603 static DCTtab_t DCTtab6[16];
1605 // non-linear quantization coefficient table
1606 static uint8_t non_linear_mquant_table[32];
1608 enum macroblock_type {
1630 enum scalable_mode {
1638 slice_decoder_t *next;
1641 pthread_t owner; // for debugging
1642 slice_buffer_t *slice_buffer;
1646 int pri_brk; // slice/macroblock
1647 short block[12][64];
1649 pthread_t tid; // ID of thread
1654 int clear_block(int comp, int size);
1655 static uint16_t *DCTlutab[3];
1656 static uint16_t lu_pack(DCTtab_t *lp) {
1657 int run = lp->run>=64 ? lp->run-32 : lp->run;
1658 return run | ((lp->len-1)<<6) | (lp->level<<10);
1660 static int lu_run(uint16_t lu) { return lu & 0x3f; }
1661 static int lu_level(uint16_t lu) { return lu >> 10; }
1662 static int lu_len(uint16_t lu) { return ((lu>>6) & 0x0f) + 1; }
1663 static void init_lut(uint16_t *&lutbl, DCTtab_t *tabn, DCTtab_t *tab0, DCTtab_t *tab1);
1664 static void init_tables();
1665 int get_coef(uint16_t *lut);
1666 int get_mpg2_coef(uint16_t *lut);
1667 void get_intra_block(int comp, int dc_dct_pred[]);
1668 void get_mpg2_intra_block(int comp, int dc_dct_pred[]);
1669 void get_inter_block(int comp);
1670 void get_mpg2_inter_block(int comp);
1671 int get_slice_hdr();
1674 static void *the_slice_loop(void *the_slice_decoder);
1677 void motion_vector(int *PMV, int *dmvector, int h_r_size, int v_r_size,
1678 int dmv, int mvscale, int full_pel_vector);
1679 int motion_vectors(int PMV[2][2][2], int dmvector[2], int mv_field_sel[2][2],
1680 int s, int mv_count, int mv_format, int h_r_size, int v_r_size,
1681 int dmv, int mvscale);
1682 int get_macroblock_address();
1683 inline int getsp_imb_type();
1684 inline int getsp_pmb_type();
1685 inline int getsp_bmb_type();
1686 inline int get_imb_type();
1687 inline int get_pmb_type();
1688 inline int get_bmb_type();
1689 inline int get_dmb_type();
1690 inline int get_snrmb_type();
1692 int macroblock_modes(int *pmb_type,int *pstwtype, int *pstwclass,
1693 int *pmotion_type,int *pmv_count,int *pmv_format,int *pdmv,
1694 int *pmvscale,int *pdct_type);
1695 int add_block(int comp,int bx,int by,int dct_type,int addflag);
1696 static void idct_conversion(short* block);
1697 int get_active_slice_buffer();
1701 } *slice_decoders, *avail_slice_decoders;
1703 int total_slice_decoders;
1704 slice_buffer_t *active_slice_buffers;
1705 zlock_t decoder_lock, decoder_active;
1706 int decoder_active_locked;
1707 void allocate_slice_decoders();
1708 void delete_slice_decoders();
1709 void reallocate_slice_decoders();
1710 void decode_slice(slice_buffer_t* buffer);
1716 uint8_t *data; // Raw data of subtitle
1717 int data_allocated, data_used;
1718 int id; // Number of stream starting at 0x20
1719 int done; // -1 avail, 0 read in, 1 decode
1720 int active; // 1 subtitle is contructed, -1 subtitle is close caption
1721 int draw; // -1 never draw, 0 draw based on frame time, 1 always draw
1722 int64_t offset; // Program offset of start of subtitle
1723 int force; // 1 Force display, -1 force delete
1726 uint8_t *image_y, *image_u, *image_v, *image_a;
1728 int start_time; // Time after detection of subtitle to display it in msec
1729 int stop_time; // Time after detection of subtitle to hide it in msec
1730 int palette[4]; // Indexes in the main palette
1732 int start_frame, stop_frame; // framenum start/stop drawing
1733 int frame_time; // presentation frame_time at creation
1736 subtitle_t(int nid, int ww, int hh);
1739 void realloc_data(int count);
1740 int decompress_subtitle(zmpeg3_t *zsrc);
1741 void set_image_size(int isz);
1742 void set_image_size(int ww, int hh);
1743 int decode(video_t *video);
1747 friend class bits_t;
1749 uint8_t packet_next_char() { return raw_data[raw_offset]; }
1750 uint8_t packet_read_char() { return raw_data[raw_offset++]; }
1751 uint32_t packet_read_int16() {
1752 uint32_t a = raw_data[raw_offset++];
1753 uint32_t b = raw_data[raw_offset++];
1754 return (a << 8) | b;
1756 uint32_t packet_next_int24() {
1757 uint32_t a = raw_data[raw_offset+0];
1758 uint32_t b = raw_data[raw_offset+1];
1759 uint32_t c = raw_data[raw_offset+2];
1760 return (a << 16) | (b << 8) | c;
1762 uint32_t packet_read_int24() {
1763 uint32_t a = raw_data[raw_offset++];
1764 uint32_t b = raw_data[raw_offset++];
1765 uint32_t c = raw_data[raw_offset++];
1766 return (a << 16) | (b << 8) | c;
1768 uint32_t packet_read_int32() {
1769 uint32_t a = raw_data[raw_offset++];
1770 uint32_t b = raw_data[raw_offset++];
1771 uint32_t c = raw_data[raw_offset++];
1772 uint32_t d = raw_data[raw_offset++];
1773 return (a << 24) | (b << 16) | (c << 8) | d;
1775 void packet_skip(int length) { raw_offset += length; }
1776 int get_adaptation_field();
1777 int get_program_association_table();
1778 int get_transport_payload(int is_audio, int is_video);
1779 int get_pes_packet_header(uint64_t *pts, uint64_t *dts);
1780 int get_unknown_data();
1781 int get_transport_pes_packet();
1782 int get_pes_packet();
1784 int read_transport();
1785 int get_system_header();
1786 uint64_t get_timestamp();
1787 int get_pack_header();
1788 int get_program_payload(int bytes, int is_audio, int is_video);
1789 int handle_scrambling(int decryption_offset);
1790 void del_subtitle(int idx);
1791 subtitle_t* get_subtitle(int id,int64_t offset);
1792 void handle_subtitle(zmpeg3_t *src, int stream_id, int bytes);
1793 int handle_pcm(int bytes);
1794 int get_program_pes_packet(uint32_t header);
1795 int previous_code(uint32_t zcode);
1808 uint8_t *raw_data; // One unparsed packet.
1809 int raw_offset; // Offset in raw_data of read pointer
1810 int raw_size; // Amount loaded in last raw_data
1812 // Elementary stream data when only one stream is to be read.
1813 // Erased in every call to read a packet.
1818 int allocated; // Allocation of data_buffer
1819 int size; // Position in data_buffer of write pointer
1820 int position; // Position in data_buffer of read pointer
1821 int start; // Start of the next pes packet
1822 int length() { return size - position; }
1823 bool eof() { return position >= size; }
1824 bool bof() { return position == 0; }
1826 // Elementary stream data when all streams are to be read. There is no
1827 // read pointer since data is expected to be copied directly to a track.
1828 // Some packets contain audio and video. Further division into
1829 // stream ID may be needed.
1833 subtitle_t *subtitles[MAX_SUBTITLES];
1834 int total_subtitles;
1836 // What type of data to read, which track is accessing
1840 // Direction of reads
1842 // Set to 1 when eof or attempt to read before beginning
1845 // Temp variables for returning
1847 // Info for mpeg3cat
1848 int64_t last_packet_start;
1849 int64_t last_packet_end;
1850 int64_t last_packet_decryption;
1852 // Table of contents
1853 class title_t { // Titles
1854 void extend_cell_table();
1861 int64_t total_bytes; // Total bytes in title file.
1862 int64_t start_byte; // Absolute starting byte of the title in the stream
1863 int64_t end_byte; // Absolute ending byte of the title in the stream + 1
1864 // May get rid of time values and rename to a cell offset table.
1865 // May also get rid of end byte.
1870 int64_t title_start; // Starting byte of cell in the title (start_byte)
1871 int64_t title_end; // Ending byte of cell in the title (end_byte)
1872 int64_t program_start; // Starting byte of the cell in the program
1873 int64_t program_end; // Ending byte of the cell in the program
1874 double cell_time; // play time at end of cell, -1 if unknown
1875 int cell_no; // cell in original cell table
1880 } *cell_table; // Timecode table
1881 int cell_table_size; // Number of entries
1882 int cell_table_allocation; // Number of available slots
1884 title_t(zmpeg3_t *zsrc, char *fpath);
1885 title_t(zmpeg3_t *zsrc);
1887 title_t(title_t &title);
1888 void new_cell(int cell_no,
1889 int64_t title_start, int64_t title_end,
1890 int64_t program_start, int64_t program_end,
1892 void new_cell(int64_t byte_end) { // default cell
1893 new_cell(0, 0, byte_end, 0, byte_end, 0);
1896 int print_cells(FILE *output);
1897 } *titles[MAX_STREAMZ];
1899 int current_title; // Title currently being used
1901 // Tables of every stream ID encountered
1902 int8_t astream_table[MAX_STREAMZ]; // afmt index
1903 int8_t vstream_table[MAX_STREAMZ]; // 1 if video
1904 int8_t sstream_table[MAX_STREAMZ]; // 1 if subtitle
1906 // Cell in the current title currently used
1908 int64_t nav_cell_next_vobu;
1909 int64_t nav_cell_end_byte;
1911 // Byte position in current program.
1912 int64_t program_byte;
1913 // Total bytes in all titles
1914 int64_t total_bytes;
1915 // The end of the current stream in the current program
1918 int transport_error_indicator;
1919 int payload_unit_start_indicator;
1920 int pid; // PID of last packet
1921 int stream_id; // Stream ID of last packet
1922 int custom_id; // Custom ID of last packet
1923 int transport_scrambling_control;
1924 int adaptation_field_control;
1925 int continuity_counter;
1927 int pid_table[PIDMAX];
1928 int continuity_counters[PIDMAX];
1930 int adaptation_fields;
1931 double time; // Time in seconds
1938 // if subtitle object was created in last packet
1940 // When only one stream is to be read, these store the stream IDs
1941 // Audio stream ID being decoded. -1 = select first ID in stream
1943 // Video stream ID being decoded. -1 = select first ID in stream
1945 // Multiplexed streams have the audio type
1946 // Format of the audio derived from multiplexing codes
1948 int program_association_tables;
1951 int transport_stream_id;
1953 double pes_audio_time; // Presentation Time stamps
1954 double pes_video_time;
1955 int pes_audio_pid; // custom_id of timestamp
1957 // Cause the stream parameters to be dumped in human readable format
1960 demuxer_t(zmpeg3_t *zsrc,atrack_t *do_aud,vtrack_t *do_vid,int cust_id);
1963 int create_title(int full_scan=0);
1964 int64_t tell_byte() { return program_byte; }
1965 int64_t absolute_position() {
1966 return titles[current_title]->fs->tell() + titles[current_title]->start_byte;
1970 bool error() { return error_flag; }
1971 int64_t movie_size();
1972 double get_time() { return time; }
1973 int get_cell(int no, title_t::cell_t *&v);
1974 void start_reverse();
1975 void start_forward();
1976 int seek_byte(int64_t byte);
1978 int goto_pts(double pts);
1981 int64_t prog2abs_fwd(int64_t byte, int64_t *nbyte, int *ntitle, int *ncell);
1982 int64_t prog2abs_rev(int64_t byte, int64_t *nbyte, int *ntitle, int *ncell);
1983 int64_t program_to_absolute(int64_t byte, int64_t *nbyte=0, int *ntitle=0, int *ncell=0);
1984 int64_t absolute_to_program(int64_t byte);
1985 int64_t title_bytes();
1986 void append_data(uint8_t *data, int bytes);
1988 int open_title(int title_number);
1989 int copy_titles(demuxer_t *dst);
1990 void end_title(int64_t end_byte);
1991 int next_code(uint32_t zcode);
1992 int prev_code(uint32_t zcode);
1993 uint8_t read_char_packet();
1994 uint8_t read_prev_char_packet();
1995 uint8_t read_char() {
1996 if( zunlikely(zdata.eof()) ) return read_char_packet();
1997 return zdata.buffer[zdata.position++];
1999 uint8_t read_prev_char();
2000 int read_data(uint8_t *output,int size);
2001 int read_next_packet();
2002 int read_prev_packet();
2003 void skip_video_frame();
2004 int64_t next_cell();
2005 int64_t playinfo_next_cell();
2006 double video_pts() { double pts = pes_video_time; pes_video_time = -1.; return pts; }
2007 double audio_pts() { double pts = pes_audio_time; pes_audio_time = -1.; return pts; }
2009 void set_audio_pts(uint64_t pts, const double denom);
2010 void set_video_pts(uint64_t pts, const double denom);
2011 int current_cell_no();
2014 class cacheframe_t {
2018 int y_alloc, u_alloc, v_alloc;
2019 int y_size, u_size, v_size;
2020 int64_t frame_number;
2031 cacheframe_t *frames;
2039 void reset() { total = 0; }
2040 void put_frame(int64_t zframe_number,
2041 uint8_t *zy, uint8_t *zu, uint8_t *zv,
2042 int zy_size, int zu_size, int zv_size);
2043 int get_frame( int64_t frame_number,
2044 uint8_t **zy, uint8_t **zu, uint8_t **zv);
2045 int has_frame(int64_t frame_number);
2046 int64_t memory_usage();
2049 fs_t *fs; // Store entry path here
2050 demuxer_t *demuxer; // Master title tables copied to all tracks
2051 int iopened; // file opened by user (before init)
2057 void extend_sample_offsets();
2064 int64_t current_position;
2065 int64_t total_samples;
2066 int format; // format of audio
2069 // If we got the header information yet. Used in streaming mode.
2071 // Pointer to master table of contents when the TOC is read.
2072 // Pointer to private table when the TOC is being created
2073 // Stores the absolute byte of each audio chunk
2074 int64_t *sample_offsets;
2075 int total_sample_offsets;
2076 int sample_offsets_allocated;
2077 // If this sample offset table must be deleted by the track
2078 int private_offsets;
2079 // End of stream in table of contents construction
2081 // Starting byte of previous/current packet for making TOC
2082 int64_t prev_offset, curr_offset;
2083 double audio_time; // audio pts based time
2084 int askip; // skipping
2085 int64_t pts_position; // sample position at pts
2087 double pts_starttime; // demuxer first pts
2088 double pts_offset; // pts offset due to discontinuity
2091 double last_pts() { return pts_starttime+audio_time-pts_offset; }
2093 atrack_t(zmpeg3_t *zsrc, int custom_id, int format, demuxer_t *demux, int no);
2096 int calculate_format(zmpeg3_t *src);
2097 int handle_audio_data(int track_number);
2098 int handle_audio(int track_number);
2099 int64_t track_position() { return current_position+nudge; }
2100 void append_samples(int64_t offset);
2101 void update_frame_pts() { if( frame_pts < 0 ) frame_pts = demuxer->audio_pts(); }
2102 void update_audio_time();
2103 double get_audio_time();
2104 double pts_audio_time(double pts) {
2105 return pts_starttime<0. ? pts_starttime : pts-pts_starttime+pts_offset;
2107 int64_t apparent_position();
2108 } *atrack[MAX_STREAMZ];
2112 void extend_frame_offsets();
2113 void extend_keyframe_numbers();
2121 video_t *video; // Video decoding object
2122 long current_position; // Number of next frame to be played
2123 long total_frames; // Total frames in the file
2125 slice_buffer_t *slice; // toc slice data
2128 // Pointer to master table of contents when the TOC is read.
2129 // Pointer to private table when the TOC is being created
2130 // Stores the absolute byte of each frame
2131 int64_t *frame_offsets;
2132 int total_frame_offsets;
2133 int frame_offsets_allocated;
2134 int *keyframe_numbers;
2135 int total_keyframe_numbers;
2136 int keyframe_numbers_allocated;
2137 // Starting byte of previous/current packet for making TOC
2138 int64_t prev_frame_offset;
2139 int64_t prev_offset, curr_offset;
2140 int vskip; // skipping
2141 double video_time; // reshuffled pts
2142 // End of stream in table of contents construction
2146 cache_t *frame_cache;
2147 // If these tables must be deleted by the track
2148 int private_offsets;
2149 int pts_position; // framenum at pts
2151 double pts_starttime; // first pts
2152 double pts_offset; // pts offset due to discontinuity
2153 double refframe_pts; // last refframe pts
2155 double pts_video_time(double pts) {
2156 return pts_starttime<0. ? pts_starttime : pts-pts_starttime+pts_offset;
2159 double last_pts() { return pts_starttime+video_time-pts_offset; }
2161 vtrack_t(zmpeg3_t *zsrc, int custom_id, demuxer_t *demux, int no);
2164 int handle_video_data(int track_number, int prev_data_size);
2165 int handle_video(int track_number);
2166 int find_keyframe_index(int64_t frame);
2167 void append_frame(int64_t offset, int is_keyframe);
2168 void update_frame_pts() { if( frame_pts < 0 ) frame_pts = demuxer->video_pts(); }
2169 void update_video_time();
2170 double get_video_time();
2171 int apparent_position();
2172 } *vtrack[MAX_STREAMZ];
2175 // Stores the program offsets of subtitle images.
2176 // Only used for seeking off of table of contents for editing.
2177 // Doesn't have its own demuxer but hangs off the video demuxer.
2180 void extend_offsets();
2181 void extend_subtitles();
2186 video_t *video; // if non-zero, decoder owns track
2187 int64_t *offsets; // Offsets in program of subtitle packets
2189 int allocated_offsets;
2190 subtitle_t *subtitles[MAX_SUBTITLES]; // Last subtitle objects found in stream.
2191 int total_subtitles;
2193 strack_t(int zid, video_t *vid=0);
2194 strack_t(strack_t &strack);
2197 int append_subtitle(subtitle_t *subtitle, int lock=1);
2198 void append_subtitle_offset(int64_t program_offset);
2199 void del_subtitle(subtitle_t *subtitle, int lock=0);
2200 void del_subtitle(int i, int lock=0);
2201 void del_all_subtitles();
2202 } *strack[MAX_STREAMZ];
2204 static uint64_t get8bytes(uint8_t *buf) {
2205 return bswap_64(*((uint64_t *)buf));
2207 static uint32_t get4bytes(uint8_t *buf) {
2208 return bswap_32(*((uint32_t *)buf));
2210 static uint32_t get2bytes(uint8_t *buf) {
2211 return bswap_16(*((uint16_t *)buf));
2217 int64_t start_byte, end_byte; // Bytes relative to start of stream.
2218 short vob_id, cell_id; // cell address vob/cell id
2219 uint32_t inlv; // bit vector of allowed interleaves
2220 short angle, discon; // angle interleave no, discontinuity flag
2222 int has_inlv(int i) { return (inlv >> i) & 1; }
2225 class icell_table_t {
2229 long cells_allocated;
2230 icell_table_t() { cells = 0; total_cells = cells_allocated = 0; }
2232 icell_t *append_cell();
2239 id_NUM_MENU_VOBS = 0,
2240 id_NUM_TITLE_VOBS = 1,
2247 id_MENU_CELL_ADDR = 5,
2248 id_MENU_VOBU_ADDR_MAP = 6,
2249 id_TITLE_CELL_ADDR = 7,
2250 id_TITLE_VOBU_ADDR_MAP = 8,
2253 uint32_t num_menu_vobs;
2255 uint32_t empirical; // scan for audio/subtitle stream data
2257 int fd; // file descriptor
2258 int64_t pos; // offset of ifo file on device
2261 int64_t current_byte;
2265 return !strncmp((char*)data[id_MAT], "DVDVIDEO-VTS", 12) ? 0 : -1;
2268 return !strncmp((char*)data[id_MAT], "DVDVIDEO-VMG", 12) ? 0 : -1;
2271 void get_playlist(zmpeg3_t *zsrc);
2272 int ifo_read(long pos, long count, uint8_t *data);
2275 ifo_t(int zfd, long zpos);
2279 int get_table(int64_t offset,unsigned long tbl_id);
2280 void get_palette(zmpeg3_t *zsrc);
2281 void get_header(demuxer_t *demux);
2282 void get_playinfo(zmpeg3_t *zsrc, icell_table_t *icell_addrs);
2283 void icell_addresses(icell_table_t *cell_addrs);
2284 int64_t ifo_chapter_cell_time(zmpeg3_t *zsrc, int chapter);
2285 void get_ititle(zmpeg3_t *zsrc, int chapter=0);
2286 void icell_map(zmpeg3_t *zsrc, icell_table_t *icell_addrs);
2287 int chk(int vts_title, int chapter, int inlv, int angle,
2288 icell_table_t *icell_addrs, int §ors, int &pcells, int &max_angle);
2291 // Table of contents storage
2292 int64_t **frame_offsets;
2293 int64_t **sample_offsets;
2294 int **keyframe_numbers;
2297 int *total_frame_offsets;
2298 int *total_sample_offsets;
2299 int64_t *total_samples;
2300 int *total_keyframe_numbers;
2301 // Handles changes in channel count after the start of a stream
2302 int *channel_counts, *nudging;
2303 // Indexes for audio tracks
2306 double cell_time; // time at start of last cell
2307 // toc/skim thumbnail data callback
2308 zthumbnail_cb thumbnail_fn;
2309 void *thumbnail_priv;
2311 // Number of bytes to devote to the index of a single track
2312 // in the index building process.
2313 int64_t index_bytes;
2314 int file_type, log_errs;
2315 int err_logging(int v=-1) { int lv = log_errs; if( v>=0 ) log_errs=v; return lv; }
2316 // Only one of these is set to 1 to specify what kind of stream we have.
2317 int is_transport_stream() { return file_type & FT_TRANSPORT_STREAM; }
2318 int is_program_stream() { return file_type & FT_PROGRAM_STREAM; }
2319 int is_audio_stream() { return file_type & FT_AUDIO_STREAM; } // Elemental stream
2320 int is_video_stream() { return file_type & FT_VIDEO_STREAM; } // Elemental stream
2321 int is_ifo_file() { return file_type & FT_IFO_FILE; } // dvd ifo file
2322 // Special kind of transport stream for BD or AVC-HD
2323 int is_bd() { return 0; /* file_type & FT_BD_FILE; */ }
2324 int packet_size; // > 0 if known otherwise determine empirically for every packet
2325 // Type and stream for getting current absolute byte
2326 int last_type_read; // 1 - audio 2 - video
2327 int last_stream_read;
2328 int vts_title; // video titleset title number (counting from 0)
2329 int total_vts_titles;
2330 int interleave, angle; // active program sector interleave/angle index
2331 int total_interleaves;
2332 int cpus; // number of decode threads
2333 int seekable; // Filesystem is seekable. Also means the file isn't a stream.
2334 int last_cell_no; // last known cell no in TOC build
2335 int pts_padding; // use pts data to add padding to sync damaged data
2336 FILE *toc_fp; // For building TOC, the output file.
2337 int recd_fd; // record file
2338 int64_t recd_pos; // record file size
2339 /* The first color palette in the IFO file. Used for subtitles.
2340 * Byte order: YUVX * 16 */
2342 uint8_t palette[16 * 4];
2343 // Date of source file index was created from.
2344 // Used to compare DVD source file to table of contents source.
2345 int64_t source_date;
2346 // playback cell table
2347 icell_table_t *playinfo;
2349 int calculate_packet_size();
2350 int get_file_type(int *toc_atracks, int *toc_vtracks, const char *title_path);
2351 int read_toc(int *toc_atracks, int *toc_vtracks, const char *title_path);
2352 enum { show_toc_SAMPLE_OFFSETS=1, show_toc_AUDIO_INDEX=2, show_toc_FRAME_OFFSETS=4 };
2353 int show_toc(int flags);
2354 int handle_nudging();
2355 void divide_index(int track_number);
2356 int update_index(int track_number,int flush);
2357 static ifo_t *ifo_open(int fd,long pos);
2359 atrack_t *new_atrack_t(int custom_id, int format,
2360 demuxer_t *demux, int number);
2361 vtrack_t *new_vtrack_t(int custom_id, demuxer_t *demux, int number);
2362 audio_t *new_audio_t(atrack_t *ztrack, int zformat);
2363 video_t *new_video_t(vtrack_t *ztrack);
2364 strack_t* get_strack_id(int id, video_t *vid);
2365 strack_t* get_strack(int number);
2366 strack_t* create_strack(int id, video_t *vid=0);
2367 int display_subtitle(int stream, int sid, int id,
2368 uint8_t *yp, uint8_t *up, uint8_t *vp, uint8_t *ap,
2369 int x, int y, int w, int h, double start_msecs, double stop_msecs);
2370 int delete_subtitle(int stream, int sid, int id);
2371 static int clip(int v, int mn, int mx) {
2372 if( v > mx ) return mx;
2373 if( v < mn ) return mn;
2376 static uint8_t clip(int32_t v) {
2377 return ((uint8_t)v) == v ? v : clip(v,0,255);
2379 void handle_subtitle();
2380 void handle_cell(int this_cell_no);
2384 uint8_t *xbfr, *eob;
2385 uint32_t get8bits() { return xbfr < eob ? *xbfr++ : 0; }
2386 uint32_t get16bits() { uint32_t v = get8bits(); return (v<<8) | get8bits(); }
2387 uint32_t get24bits() { uint32_t v = get16bits(); return (v<<8) | get8bits(); }
2388 uint32_t get32bits() { uint32_t v = get24bits(); return (v<<8) | get8bits(); }
2390 class mgt_t; // master guide table
2391 class vct_t; // virtual channel table
2392 class rrt_t; // rating region table
2393 class eit_t; // event information table
2394 class ett_t; // extended text table
2395 class stt_t; // system time table
2408 int bfr_size, bfr_alloc;
2409 int src_id, tbl_id, tbl_len;
2416 void extract(uint8_t *dat, int len);
2417 int bfr_len() { return tbl_len - bfr_size; }
2419 mitem_t(int zpid) : pid(zpid) { bfr=0; bfr_size=bfr_alloc=0; }
2420 ~mitem_t() { clear(); }
2424 mitem_t *search(uint16_t pid);
2425 mgt_t(dvb_t *p) : dvb(p) {}
2426 ~mgt_t() { clear(); }
2436 uint32_t transport_stream_id;
2437 int items, items_allocated;
2444 uint16_t short_name[7+1];
2445 uint32_t major_channel_number;
2446 uint32_t minor_channel_number;
2447 uint32_t modulation_mode;
2448 uint32_t carrier_frequency;
2449 uint32_t channel_TSID;
2450 uint32_t program_number;
2451 uint32_t etm_location;
2452 uint8_t access_controlled;
2454 uint8_t path_select;
2455 uint8_t out_of_band;
2456 uint32_t service_type;
2464 uint8_t code_639[3];
2465 void extract(dvb_t *dvb);
2467 void extract(dvb_t *dvb);
2470 vct_t(dvb_t *p) : dvb(p) {}
2471 ~vct_t() { clear(); }
2474 int search(vitem_t &new_item);
2475 void append(vitem_t &new_item);
2485 uint8_t region_nlen;
2486 uint8_t region_name[2*32+1];
2495 uint8_t dim_name[2*20+1];
2496 uint8_t graduated_scale;
2500 uint8_t rating_nlen;
2501 uint8_t rating_name[2*8+1];
2502 uint8_t rating_tlen;
2503 uint8_t rating_text[2*150+1];
2504 void extract(dvb_t *dvb);
2506 void extract(dvb_t *dvb);
2509 ~ritem_t() { clear(); }
2512 rrt_t(dvb_t *p) : dvb(p) {}
2513 ~rrt_t() { clear(); }
2535 uint32_t start_time;
2538 uint8_t *title_text;
2539 void extract(dvb_t *dvb);
2542 ~einfo_t() { clear(); }
2545 eit_t(dvb_t *p, int id) : dvb(p), id(id) {}
2546 ~eit_t() { clear(); }
2548 int search(uint16_t evt_id);
2572 void extract(dvb_t *dvb, uint32_t eid);
2574 etext_t(int id) : id(id) {}
2575 ~etext_t() { clear(); }
2578 ett_t(dvb_t *p, int id) : dvb(p), id(id) {}
2579 ~ett_t() { clear(); }
2591 uint32_t system_time;
2593 uint16_t daylight_saving;
2595 stt_t(dvb_t *p) : dvb(p) {}
2596 ~stt_t() { clear(); }
2601 uint32_t stt_start_time;
2602 int64_t stt_offset() {
2603 return (365*10+7)*24*3600L - (stt ? stt->utc_offset : 0);
2606 int64_t get_system_time() {
2607 return stt && stt->system_time ? stt->system_time + stt_offset() : -1;
2618 int bfr_pos() { return xbfr - active->bfr; }
2619 int bfr_len() { return active->bfr_size - bfr_pos(); }
2620 void skip_bfr(int n);
2621 void skp_bfr(int n) { if( n > 0 ) skip_bfr(n); }
2623 int text_length, text_allocated;
2625 int get_text(uint8_t *dat, int bytes);
2626 void append_text(char *dat, int bytes);
2627 char *mstring(uint8_t *bp, int len);
2629 dvb_t(zmpeg3_t *zsrc);
2634 mgt_t::mitem_t *active;
2635 mgt_t::mitem_t *atsc_pid(int pid);
2636 mgt_t::mitem_t base_pid;
2638 int atsc_tables(demuxer_t *demux, int pid);
2639 void skip_descr(int descr_len);
2641 int channel_count();
2643 int get_channel(int n, int &major, int &minor);
2644 int get_station_id(int n, char *name);
2645 int total_astreams(int n, int &count);
2646 int astream_number(int n, int ord, int &stream, char *enc=0);
2647 int total_vstreams(int n, int &count);
2648 int vstream_number(int n, int ord, int &stream);
2649 int read_dvb(demuxer_t *demux);
2650 int get_chan_info(int n, int ord, int i, char *txt, int len);
2657 // Get version information
2658 static int zmajor() { return ZMPEG3_MAJOR; };
2659 static int zminor() { return ZMPEG3_MINOR; };
2660 static int zrelease() { return ZMPEG3_RELEASE; };
2662 // Check for file compatibility. Return 1 if compatible.
2663 static int check_sig(char *path);
2665 // Open the MPEG stream.
2666 // An error code is put into *ret if it fails and error_return is nonzero.
2667 zmpeg3_t(const char *path);
2668 zmpeg3_t(const char *path, int &ret, int access=fs_t::io_UNBUFFERED, const char *title_path=0);
2669 zmpeg3_t(int fd, int &ret, int access=0);
2670 zmpeg3_t(FILE *fp, int &ret, int access=0);
2671 int init(const char *title_path=0);
2675 int set_cpus(int cpus);
2676 int set_pts_padding(int v);
2678 // Query the MPEG3 stream about audio.
2680 int total_astreams();
2681 int audio_channels(int stream);
2682 double sample_rate(int stream);
2683 const char *audio_format(int stream);
2685 // Total length obtained from the timecode.
2686 // For DVD files, this is unreliable.
2687 long audio_nudge(int stream);
2688 long audio_samples(int stream);
2689 int set_sample(long sample, int stream);
2690 long get_sample(int stream);
2692 // Stream defines the number of the multiplexed stream to read.
2693 // If output argument is null the audio is not rendered.
2694 // Read a PCM buffer of audio from 1 channel and advance the position.
2695 int read_audio(void *output_v, int type, int channel, long samples, int stream);
2696 int read_audio(double *output_d, int channel, long samples, int stream);
2697 int read_audio(float *output_f, int channel, long samples, int stream);
2698 int read_audio(int *output_i, int channel, long samples, int stream);
2699 int read_audio(short *output_s, int channel, long samples, int stream);
2700 // Read a PCM buffer of audio from 1 channel without advancing the position.
2701 int reread_audio(void *output_v, int type, int channel, long samples, int stream);
2702 int reread_audio(double *output_d, int channel, long samples, int stream);
2703 int reread_audio(float *output_f, int channel, long samples, int stream);
2704 int reread_audio(int *output_i, int channel, long samples, int stream);
2705 int reread_audio(short *output_s, int channel, long samples, int stream);
2707 // Read the next compressed audio chunk. Store the size in size and return a
2708 // Stream defines the number of the multiplexed stream to read.
2709 int read_audio_chunk(uint8_t *output, long *size, long max_size, int stream);
2711 // Query the stream about video.
2713 int total_vstreams();
2714 int video_width(int stream);
2715 int video_height(int stream);
2716 int coded_width(int stream);
2717 int coded_height(int stream);
2718 int video_pid(int stream);
2719 float aspect_ratio(int stream); // aspect ratio. 0 if none
2720 double frame_rate(int stream); // Frames/sec
2722 long video_frames(int stream); // total length - for TOC files only.
2723 int set_frame(long frame, int stream); // Seek to a frame
2724 // int skip_frames(); /*???*/
2725 long get_frame(int stream); // Tell current position
2727 // Total bytes. Used for absolute byte seeking.
2728 int64_t get_bytes();
2730 // Seek all the tracks to the absolute byte in the
2731 // file. This eliminates the need for tocs but doesn't
2732 // give frame accuracy.
2733 int seek_byte(int64_t byte);
2734 int64_t tell_byte();
2736 int previous_frame(int stream);
2737 int end_of_audio(int stream);
2738 int end_of_video(int stream);
2740 // Give the seconds time in the last packet read
2742 double get_audio_time(int stream);
2743 double get_video_time(int stream);
2744 int get_cell_time(int no, double &time);
2746 // Read input frame and scale to the output frame
2747 // The last row of **output_rows must contain 4 extra bytes for scratch work.
2748 int read_frame(uint8_t **output_rows, // row start pointers
2749 int in_x, int in_y, int in_w, int in_h, // Location in input frame
2750 int out_w, int out_h, // Dimensions of output_rows
2751 int color_model, int stream);
2753 // Get the colormodel being used natively by the stream
2754 int colormodel(int stream);
2755 // Set the row stride to be used in read_yuvframe
2756 int set_rowspan(int bytes, int stream);
2758 // Read a frame in the native color model used by the stream.
2759 // The Y, U, and V planes are copied into the y, u, and v
2760 // BUFFERS Provided.
2761 // The input is cropped to the dimensions given but not scaled.
2762 int read_yuvframe(char *y_output, char *u_output, char *v_output,
2763 int in_x, int in_y, int in_w, int in_h, int stream);
2765 // Read a frame in the native color model used by the stream.
2766 // The Y, U, and V planes are not copied but the _output pointers
2767 // are redirected to the frame buffer.
2768 int read_yuvframe_ptr(char **y_output, char **u_output, char **v_output,
2771 // Drop frames number of frames
2772 int drop_frames(long frames, int stream);
2774 // Read the next compressed frame including headers.
2775 // Store the size in size and return a 1 if error.
2776 // Stream defines the number of the multiplexed stream to read.
2777 int read_video_chunk(uint8_t *output, long *size, long max_size,
2781 int get_total_vts_titles();
2782 int set_vts_title(int title=-1);
2783 int get_total_interleaves();
2784 int set_interleave(int inlv=-1);
2785 int set_angle(int a=-1);
2786 int set_program(int no); // legacy
2788 // Memory used by video caches.
2789 int64_t memory_usage();
2790 // write incoming datastream on file descr fd
2791 // buffer access must be io_THREADED. useful to record dvb device data
2792 // bsz records up to bsz bytes of past buffer data in write_align
2793 int start_record(int fd, int bsz=0);
2795 void write_record(uint8_t *data, int len);
2796 // limit position for start of last full packet
2797 int64_t record_position() { return recd_pos - packet_size + 1; }
2798 // restart streams, discard device buffer and reinit file positions
2800 // enable/disable data xfr from reader thread
2801 int pause_reader(int v);
2803 // subtitle functions
2804 // get number of subtitle tracks
2805 int subtitle_tracks() { return total_stracks; }
2806 // Enable overlay of a subtitle track.
2807 // track - the number of the subtitle track starting from 0
2808 // The same subtitle track is overlayed for all video tracks.
2809 // track=-1 to disable subtitles.
2810 int show_subtitle(int stream, int strk);
2812 // Table of contents generation
2813 // Begin constructing table of contents
2814 static zmpeg3_t *start_toc(const char *path, const char *toc_path,
2815 int program=0, int64_t *total_bytes=0);
2816 // Set the maximum number of bytes per index track
2817 void set_index_bytes(int64_t bytes) { index_bytes = bytes; }
2818 // Process one packet
2819 int do_toc(int64_t *bytes_processed);
2820 // Write table of contents
2822 int set_thumbnail_callback(int trk, int skim, int thumb, zthumbnail_cb fn, void *p);
2823 int get_thumbnail(int trk, int64_t &frn, uint8_t *&t, int &w, int &h);
2824 int set_cc_text_callback(int trk, zcc_text_cb fn);
2826 // Get modification date of source file from table of contents.
2827 // Used to compare DVD source file to table of contents source.
2828 int64_t get_source_date() { return source_date; }
2829 // Get modification date of source file from source file.
2830 static int64_t calculate_source_date(char *path);
2831 static int64_t calculate_source_date(int fd);
2832 // Table of contents queries
2834 int index_channels(int track);
2836 int index_size(int track);
2837 float* index_data(int track, int channel);
2838 // Returns 1 if the file has a table of contents
2840 return frame_offsets || sample_offsets ? 1 : 0;
2842 // Return the path of the title number or 0 if no more titles.
2843 char* title_path(int number) {
2844 return number>=0 && number<demuxer->total_titles ?
2845 demuxer->titles[number]->fs->path : 0;
2848 static inline void complete_path(char *full_path, char *path) {
2850 if( path[0] != '/' && getcwd(dir, sizeof(dir)) )
2851 snprintf(full_path, STRLEN, "%s/%s", dir, path);
2853 strcpy(full_path, path);
2856 static inline void get_directory(char *directory, char *path) {
2857 char *ptr = strrchr(path, '/');
2862 directory[i] = path[i];
2866 if( i == 0 ) directory[i++] = '.';
2870 static inline void get_filename(char *filename, char *path) {
2871 char *ptr = strrchr(path, '/');
2874 strcpy(filename, ptr);
2877 static inline void joinpath(char *path, char *dir, char *filename) {
2878 snprintf(path, STRLEN, "%s/%s", dir, filename);
2881 static inline int64_t path_total_bytes(char *path) {
2883 return stat64(path, &st )<0 ? 0 : st.st_size;
2888 typedef zmpeg3_t::zlock_t zzlock_t;
2889 typedef zmpeg3_t::zblock_t zzblock_t;
2890 typedef zmpeg3_t::zrwlock_t zzrwlock_t;
2891 typedef zmpeg3_t::fs_t zfs_t;
2892 typedef zfs_t::css_t zcss_t;
2893 typedef zcss_t::key_t zkey_t;
2894 typedef zcss_t::blk_t zblk_t;
2895 typedef zcss_t::playkey_t zplaykey_t;
2896 typedef zfs_t::buffer_t zbuffer_t;
2897 typedef zmpeg3_t::bits_t zbits_t;
2898 typedef zmpeg3_t::index_t zindex_t;
2899 typedef zmpeg3_t::bitfont_t zbitfont_t;
2900 typedef zbitfont_t::bitchar_t zbitchar_t;
2901 typedef zbitfont_t::static_init_t zstatic_init_t;
2902 typedef zmpeg3_t::timecode_t ztimecode_t;
2903 typedef zmpeg3_t::audio_t zaudio_t;
2904 typedef zaudio_t::imdct_complex_t zimdct_complex_t;
2905 typedef zaudio_t::imdct_al_table_t zimdct_al_table_t;
2906 typedef zaudio_t::audio_decoder_layer_t zaudio_decoder_layer_t;
2907 typedef zaudio_t::audio_decoder_ac3_t zaudio_decoder_ac3_t;
2908 typedef zaudio_t::audio_decoder_pcm_t zaudio_decoder_pcm_t;
2909 typedef zmpeg3_t::VLCtab_t zVLCtab_t;
2910 typedef zmpeg3_t::DCTtab_t zDCTtab_t;
2911 typedef zmpeg3_t::slice_buffer_t zslice_buffer_t;
2912 typedef zmpeg3_t::video_t zvideo_t;
2913 typedef zvideo_t::cc_t zcc_t;
2914 typedef zcc_t::svc_t zsvc_t;
2915 typedef zsvc_t::win_t zwin_t;
2916 typedef zsvc_t::chr_t zchr_t;
2917 typedef zmpeg3_t::slice_decoder_t zslice_decoder_t;
2918 typedef zmpeg3_t::subtitle_t zsubtitle_t;
2919 typedef zmpeg3_t::demuxer_t zdemuxer_t;
2920 typedef zdemuxer_t::zstream_t zzstream_t;
2921 typedef zdemuxer_t::title_t ztitle_t;
2922 typedef ztitle_t::cell_t zcell_t;
2923 typedef zmpeg3_t::cacheframe_t zcacheframe_t;
2924 typedef zmpeg3_t::cache_t zcache_t;
2925 typedef zmpeg3_t::atrack_t zatrack_t;
2926 typedef zmpeg3_t::vtrack_t zvtrack_t;
2927 typedef zmpeg3_t::strack_t zstrack_t;
2928 typedef zmpeg3_t::icell_t zicell_t;
2929 typedef zmpeg3_t::icell_table_t zicell_table_t;
2930 typedef zmpeg3_t::ifo_t zifo_t;
2932 typedef zmpeg3_t::dvb_t zdvb_t;
2933 typedef zdvb_t::mgt_t zmgt_t;
2934 typedef zmgt_t::mitem_t zmitem_t;
2935 typedef zdvb_t::vct_t zvct_t;
2936 typedef zvct_t::vitem_t zvitem_t;
2937 typedef zvitem_t::ch_elts_t zch_elts_t;
2938 typedef zdvb_t::rrt_t zrrt_t;
2939 typedef zrrt_t::ritem_t zritem_t;
2940 typedef zritem_t::rating_vt zrating_vt;
2941 typedef zdvb_t::eit_t zeit_t;
2942 typedef zeit_t::einfo_t zeinfo_t;
2943 typedef zdvb_t::ett_t zett_t;
2944 typedef zett_t::etext_t zetext_t;
2945 typedef zdvb_t::stt_t zstt_t;
2951 typedef struct {} zmpeg3_t;
2952 #endif /*__cplusplus */
2953 typedef zmpeg3_t mpeg3_t;
2955 int mpeg3_major(void);
2956 int mpeg3_minor(void);
2957 int mpeg3_release(void);
2958 int mpeg3_check_sig(char *path);
2959 int mpeg3_is_program_stream(zmpeg3_t * zsrc);
2960 int mpeg3_is_transport_stream(zmpeg3_t * zsrc);
2961 int mpeg3_is_video_stream(zmpeg3_t * zsrc);
2962 int mpeg3_is_audio_stream(zmpeg3_t * zsrc);
2963 int mpeg3_is_ifo_file(zmpeg3_t * zsrc);
2964 int mpeg3_create_title(zmpeg3_t * zsrc,int full_scan);
2965 zmpeg3_t *mpeg3_open(const char *path,int *error_return);
2966 zmpeg3_t *mpeg3_open_title(const char *title_path,const char *path,int *error_return);
2967 zmpeg3_t *mpeg3_zopen(const char *title_path,const char *path,int *error_return, int access);
2968 zmpeg3_t *mpeg3_open_copy(const char *path,zmpeg3_t *old_src,int *error_return);
2969 int mpeg3_close(zmpeg3_t *zsrc);
2970 int mpeg3_set_pts_padding(zmpeg3_t *zsrc, int v);
2971 int mpeg3_set_cpus(zmpeg3_t *zsrc,int cpus);
2972 int mpeg3_has_audio(zmpeg3_t *zsrc);
2973 int mpeg3_total_astreams(zmpeg3_t *zsrc);
2974 int mpeg3_audio_channels(zmpeg3_t *zsrc,int stream);
2975 int mpeg3_sample_rate(zmpeg3_t *zsrc,int stream);
2976 const char *mpeg3_audio_format(zmpeg3_t *zsrc,int stream);
2977 long mpeg3_get_audio_nudge(zmpeg3_t *zsrc,int stream);
2978 long mpeg3_audio_samples(zmpeg3_t *zsrc,int stream);
2979 int mpeg3_set_sample(zmpeg3_t *zsrc,long sample,int stream);
2980 long mpeg3_get_sample(zmpeg3_t *zsrc,int stream);
2981 int mpeg3_read_audio(zmpeg3_t *zsrc,float *output_f,short *output_i,int channel,
2982 long samples,int stream);
2983 int mpeg3_read_audio_d(zmpeg3_t *zsrc,double *output_d, int channel,
2984 long samples, int stream);
2985 int mpeg3_read_audio_f(zmpeg3_t *zsrc,float *output_f, int channel,
2986 long samples, int stream);
2987 int mpeg3_read_audio_i(zmpeg3_t *zsrc,int *output_i, int channel,
2988 long samples, int stream);
2989 int mpeg3_read_audio_s(zmpeg3_t *zsrc,short *output_s, int channel,
2990 long samples, int stream);
2991 int mpeg3_reread_audio_d(zmpeg3_t *zsrc,double *output_d, int channel,
2992 long samples, int stream);
2993 int mpeg3_reread_audio_f(zmpeg3_t *zsrc,float *output_f, int channel,
2994 long samples, int stream);
2995 int mpeg3_reread_audio_i(zmpeg3_t *zsrc,int *output_i, int channel,
2996 long samples, int stream);
2997 int mpeg3_reread_audio_s(zmpeg3_t *zsrc,short *output_s, int channel,
2998 long samples, int stream);
2999 int mpeg3_reread_audio(zmpeg3_t *zsrc,float *output_f,short *output_i,
3000 int channel,long samples,int stream);
3001 int mpeg3_read_audio_chunk(zmpeg3_t *zsrc,unsigned char *output,long *size,
3002 long max_size,int stream);
3003 int mpeg3_has_video(zmpeg3_t *zsrc);
3004 int mpeg3_total_vstreams(zmpeg3_t *zsrc);
3005 int mpeg3_video_width(zmpeg3_t *zsrc,int stream);
3006 int mpeg3_video_height(zmpeg3_t *zsrc,int stream);
3007 int mpeg3_coded_width(zmpeg3_t *zsrc,int stream);
3008 int mpeg3_coded_height(zmpeg3_t *zsrc,int stream);
3009 int mpeg3_video_pid(zmpeg3_t *zsrc,int stream);
3010 float mpeg3_aspect_ratio(zmpeg3_t *zsrc,int stream);
3011 double mpeg3_frame_rate(zmpeg3_t *zsrc,int stream);
3012 long mpeg3_video_frames(zmpeg3_t *zsrc,int stream);
3013 int mpeg3_set_frame(zmpeg3_t *zsrc,long frame,int stream);
3014 //int mpeg3_skip_frames(zmpeg3_t *zsrc);
3015 long mpeg3_get_frame(zmpeg3_t *zsrc,int stream);
3016 int64_t mpeg3_get_bytes(zmpeg3_t *zsrc);
3017 int mpeg3_seek_byte(zmpeg3_t *zsrc,int64_t byte);
3018 int64_t mpeg3_tell_byte(zmpeg3_t *zsrc);
3019 int mpeg3_previous_frame(zmpeg3_t *zsrc,int stream);
3020 int mpeg3_end_of_audio(zmpeg3_t *zsrc,int stream);
3021 int mpeg3_end_of_video(zmpeg3_t *zsrc,int stream);
3022 double mpeg3_get_time(zmpeg3_t *zsrc);
3023 double mpeg3_get_audio_time(zmpeg3_t *zsrc, int stream);
3024 double mpeg3_get_video_time(zmpeg3_t *zsrc, int stream);
3025 double mpeg3_get_cell_time(zmpeg3_t *zsrc, int no, double *time);
3026 int mpeg3_read_frame(zmpeg3_t *zsrc,unsigned char **output_rows,int in_x,
3027 int in_y,int in_w,int in_h,int out_w,int out_h,int color_model,int stream);
3028 int mpeg3_colormodel(zmpeg3_t *zsrc,int stream);
3029 int mpeg3_set_rowspan(zmpeg3_t *zsrc,int bytes,int stream);
3030 int mpeg3_read_yuvframe(zmpeg3_t *zsrc,char *y_output,char *u_output,
3031 char *v_output,int in_x,int in_y,int in_w,int in_h,int stream);
3032 int mpeg3_read_yuvframe_ptr(zmpeg3_t *zsrc,char **y_output,char **u_output,
3033 char **v_output,int stream);
3034 int mpeg3_drop_frames(zmpeg3_t *zsrc,long frames,int stream);
3035 int mpeg3_read_video_chunk(zmpeg3_t *zsrc,unsigned char *output,long *size,
3036 long max_size,int stream);
3037 int mpeg3_get_total_vts_titles(zmpeg3_t *zsrc);
3038 int mpeg3_set_vts_title(zmpeg3_t *zsrc,int title); // toc build only
3039 int mpeg3_get_total_interleaves(zmpeg3_t *zsrc);
3040 int mpeg3_set_interleave(zmpeg3_t *zsrc,int inlv); // toc build only
3041 int mpeg3_set_angle(zmpeg3_t *zsrc,int a); // toc build only
3042 int mpeg3_set_program(zmpeg3_t *zsrc,int no); // toc build only
3043 int64_t mpeg3_memory_usage(zmpeg3_t *zsrc);
3044 int mpeg3_get_thumbnail(zmpeg3_t *zsrc, int trk,
3045 int64_t *frn, uint8_t **t, int *w, int *h);
3046 int mpeg3_set_thumbnail_callback(zmpeg3_t *zsrc, int trk,
3047 int skim, int thumb, zthumbnail_cb fn, void *p);
3048 int mpeg3_set_cc_text_callback(zmpeg3_t *zsrc, int trk, zcc_text_cb fn);
3049 int mpeg3_subtitle_tracks(zmpeg3_t *zsrc);
3050 int mpeg3_show_subtitle(zmpeg3_t *zsrc,int vtrk, int strk);
3051 int mpeg3_display_subtitle(zmpeg3_t *zsrc,int stream,int sid,int id,
3052 uint8_t *yp,uint8_t *up,uint8_t *vp,uint8_t *ap,
3053 int x,int y,int w,int h,double start_msecs,double stop_msecs);
3054 int mpeg3_delete_subtitle(zmpeg3_t *zsrc,int stream,int sid,int id);
3055 zmpeg3_t *mpeg3_start_toc(char *path,char *toc_path,int program,int64_t *total_bytes);
3056 void mpeg3_set_index_bytes(zmpeg3_t *zsrc,int64_t bytes);
3057 int mpeg3_do_toc(zmpeg3_t *zsrc,int64_t *bytes_processed);
3058 void mpeg3_stop_toc(zmpeg3_t *zsrc);
3059 int64_t mpeg3_get_source_date(zmpeg3_t *zsrc);
3060 int64_t mpeg3_calculate_source_date(char *path);
3061 int mpeg3_index_tracks(zmpeg3_t *zsrc);
3062 int mpeg3_index_channels(zmpeg3_t *zsrc,int track);
3063 int mpeg3_index_zoom(zmpeg3_t *zsrc);
3064 int mpeg3_index_size(zmpeg3_t *zsrc,int track);
3065 float *mpeg3_index_data(zmpeg3_t *zsrc,int track,int channel);
3066 int mpeg3_has_toc(zmpeg3_t *zsrc);
3067 char *mpeg3_title_path(zmpeg3_t *zsrc,int number);
3068 // hooks needed for quicktime
3069 typedef struct {} mpeg3_layer_t;
3070 int mpeg3audio_dolayer3(mpeg3_layer_t *audio,
3071 char *frame, int frame_size, float **output, int render);
3072 int mpeg3_layer_header(mpeg3_layer_t *layer_data, unsigned char *data);
3073 void mpeg3_layer_reset(mpeg3_layer_t *zlayer_data);
3074 mpeg3_layer_t* mpeg3_new_layer();
3075 void mpeg3_delete_layer(mpeg3_layer_t *audio);
3076 // hooks needed for mplexlo
3077 void mpeg3_skip_video_frame(mpeg3_t *zsrc, int stream);
3078 int64_t mpeg3_video_tell_byte(mpeg3_t *zsrc, int stream);
3079 int64_t mpeg3_audio_tell_byte(mpeg3_t *zsrc, int stream);
3081 int mpeg3_dvb_channel_count(zmpeg3_t *zsrc);
3082 int mpeg3_dvb_get_channel(mpeg3_t *zsrc,int n, int *major, int *minor);
3083 int mpeg3_dvb_get_station_id(mpeg3_t *zsrc,int n, char *name);
3084 int mpeg3_dvb_total_astreams(mpeg3_t *zsrc,int n, int *count);
3085 int mpeg3_dvb_astream_number(mpeg3_t *zsrc,int n, int ord, int *stream, char *enc);
3086 int mpeg3_dvb_total_vstreams(mpeg3_t *zsrc,int n, int *count);
3087 int mpeg3_dvb_vstream_number(mpeg3_t *zsrc,int n, int ord, int *stream);
3088 int mpeg3_dvb_get_chan_info(mpeg3_t *zsrc,int n, int ord, int i, char *cp, int len);
3089 int mpeg3_dvb_get_system_time(mpeg3_t *zsrc, int64_t *tm);