libdemuxer...

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@2311 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 280 insertions, 0 deletions

diff --git a/libmpdemux/vcd_read.h b/libmpdemux/vcd_read.h
new file mode 100644
index 0000000000..9d6564be7a
--- /dev/null
+++ b/libmpdemux/vcd_read.h
@@ -0,0 +1,280 @@
+//=================== VideoCD ==========================
+#if	defined(linux) || defined(sun) || defined(__bsdi__)
+
+#if	defined(linux)
+#include <linux/cdrom.h>
+#elif	defined(sun)
+#include <sys/cdio.h>
+static int sun_vcd_read(int, int*);
+#elif	defined(__bsdi__)
+#include <dvd.h>
+#endif
+
+
+static struct cdrom_tocentry vcd_entry;
+
+static inline void vcd_set_msf(unsigned int sect){
+  vcd_entry.cdte_addr.msf.frame=sect%75;
+  sect=sect/75;
+  vcd_entry.cdte_addr.msf.second=sect%60;
+  sect=sect/60;
+  vcd_entry.cdte_addr.msf.minute=sect;
+}
+
+static inline unsigned int vcd_get_msf(){
+  return vcd_entry.cdte_addr.msf.frame +
+        (vcd_entry.cdte_addr.msf.second+
+         vcd_entry.cdte_addr.msf.minute*60)*75;
+}
+
+int vcd_seek_to_track(int fd,int track){
+  vcd_entry.cdte_format = CDROM_MSF;
+  vcd_entry.cdte_track  = track;
+  if (ioctl(fd, CDROMREADTOCENTRY, &vcd_entry)) {
+    perror("ioctl dif1");
+    return -1;
+  }
+  return VCD_SECTOR_DATA*vcd_get_msf();
+}
+
+int vcd_get_track_end(int fd,int track){
+  struct cdrom_tochdr tochdr;
+  if (ioctl(fd,CDROMREADTOCHDR,&tochdr)==-1)
+    { perror("read CDROM toc header: "); return -1; }
+  vcd_entry.cdte_format = CDROM_MSF;
+  vcd_entry.cdte_track  = track<tochdr.cdth_trk1?(track+1):CDROM_LEADOUT;
+  if (ioctl(fd, CDROMREADTOCENTRY, &vcd_entry)) {
+    perror("ioctl dif2");
+    return -1;
+  }
+  return VCD_SECTOR_DATA*vcd_get_msf();
+}
+
+void vcd_read_toc(int fd){
+  struct cdrom_tochdr tochdr;
+  int i;
+  if (ioctl(fd,CDROMREADTOCHDR,&tochdr)==-1)
+    { perror("read CDROM toc header: "); return; }
+  for (i=tochdr.cdth_trk0 ; i<=tochdr.cdth_trk1 ; i++){
+      struct cdrom_tocentry tocentry;
+
+      tocentry.cdte_track  = i;
+      tocentry.cdte_format = CDROM_MSF;
+
+      if (ioctl(fd,CDROMREADTOCENTRY,&tocentry)==-1)
+	{ perror("read CDROM toc entry: "); return; }
+        
+      mp_msg(MSGT_OPEN,MSGL_INFO,"track %02d:  adr=%d  ctrl=%d  format=%d  %02d:%02d:%02d  mode: %d\n",
+          (int)tocentry.cdte_track,
+          (int)tocentry.cdte_adr,
+          (int)tocentry.cdte_ctrl,
+          (int)tocentry.cdte_format,
+          (int)tocentry.cdte_addr.msf.minute,
+          (int)tocentry.cdte_addr.msf.second,
+          (int)tocentry.cdte_addr.msf.frame,
+          (int)tocentry.cdte_datamode
+      );
+    }
+}
+
+
+static char vcd_buf[VCD_SECTOR_SIZE];
+
+static int vcd_read(int fd,char *mem){
+#if	defined(linux) || defined(__bsdi__)
+  memcpy(vcd_buf,&vcd_entry.cdte_addr.msf,sizeof(struct cdrom_msf));
+  if(ioctl(fd,CDROMREADRAW,vcd_buf)==-1) return 0; // EOF?
+  memcpy(mem,&vcd_buf[VCD_SECTOR_OFFS],VCD_SECTOR_DATA);
+#elif	defined(sun)
+  {
+    int offset;
+    if (sun_vcd_read(fd, &offset) <= 0) return 0;
+    memcpy(mem,&vcd_buf[offset],VCD_SECTOR_DATA);
+  }
+#endif
+
+  vcd_entry.cdte_addr.msf.frame++;
+  if (vcd_entry.cdte_addr.msf.frame==75){
+    vcd_entry.cdte_addr.msf.frame=0;
+    vcd_entry.cdte_addr.msf.second++;
+    if (vcd_entry.cdte_addr.msf.second==60){
+      vcd_entry.cdte_addr.msf.second=0;
+      vcd_entry.cdte_addr.msf.minute++;
+    }
+  }
+    
+  return VCD_SECTOR_DATA;
+}
+
+
+#ifdef	sun
+#include <sys/scsi/generic/commands.h>
+#include <sys/scsi/impl/uscsi.h>
+
+#define	SUN_XAREAD	1	/*fails on atapi drives*/
+#define	SUN_MODE2READ	2	/*fails on atapi drives*/
+#define	SUN_SCSIREAD	3
+#define	SUN_VCDREAD	SUN_SCSIREAD
+
+static int sun_vcd_read(int fd, int *offset)
+{
+#if SUN_VCDREAD == SUN_XAREAD
+  struct cdrom_cdxa cdxa;
+  cdxa.cdxa_addr = vcd_get_msf();
+  cdxa.cdxa_length = 1;
+  cdxa.cdxa_data = vcd_buf;
+  cdxa.cdxa_format = CDROM_XA_SECTOR_DATA;
+  
+  if(ioctl(fd,CDROMCDXA,&cdxa)==-1) {
+    perror("CDROMCDXA");
+    return 0;
+  }
+  *offset = 0;
+#elif SUN_VCDREAD == SUN_MODE2READ
+  struct cdrom_read cdread;
+  cdread.cdread_lba = 4*vcd_get_msf();
+  cdread.cdread_bufaddr = vcd_buf;
+  cdread.cdread_buflen = 2336;
+
+  if(ioctl(fd,CDROMREADMODE2,&cdread)==-1) {
+    perror("CDROMREADMODE2");
+    return 0;
+  }
+  *offset = 8;
+#elif SUN_VCDREAD == SUN_SCSIREAD
+  struct uscsi_cmd sc;
+  union scsi_cdb cdb;
+  int lba = vcd_get_msf();
+  int blocks = 1;
+  int sector_type;
+  int sync, header_code, user_data, edc_ecc, error_field;
+  int sub_channel;
+
+  /* sector_type = 3; *//* mode2 */
+  sector_type = 5;	/* mode2/form2 */
+  sync = 0;
+  header_code = 0;
+  user_data = 1;
+  edc_ecc = 0;
+  error_field = 0;
+  sub_channel = 0;
+
+  memset(&cdb, 0, sizeof(cdb));
+  memset(&sc, 0, sizeof(sc));
+  cdb.scc_cmd = 0xBE;
+  cdb.cdb_opaque[1] = (sector_type) << 2;
+  cdb.cdb_opaque[2] = (lba >> 24) & 0xff;
+  cdb.cdb_opaque[3] = (lba >> 16) & 0xff;
+  cdb.cdb_opaque[4] = (lba >>  8) & 0xff;
+  cdb.cdb_opaque[5] =  lba & 0xff;
+  cdb.cdb_opaque[6] = (blocks >> 16) & 0xff;
+  cdb.cdb_opaque[7] = (blocks >>  8) & 0xff;
+  cdb.cdb_opaque[8] =  blocks & 0xff;
+  cdb.cdb_opaque[9] = (sync << 7) |
+		      (header_code << 5) |
+		      (user_data << 4) |
+		      (edc_ecc << 3) |
+		      (error_field << 1);
+  cdb.cdb_opaque[10] = sub_channel;
+
+  sc.uscsi_cdb = (caddr_t)&cdb;
+  sc.uscsi_cdblen = 12;
+  sc.uscsi_bufaddr = vcd_buf;
+  sc.uscsi_buflen = 2336;
+  sc.uscsi_flags = USCSI_ISOLATE | USCSI_READ;
+  sc.uscsi_timeout = 20;
+  if (ioctl(fd, USCSICMD, &sc)) {
+      perror("USCSICMD: READ CD");
+      return -1;
+  }
+  if (sc.uscsi_status) {
+      fprintf(stderr, "scsi command failed with status %d\n", sc.uscsi_status);
+      return -1;
+  }
+  *offset = 0;
+  return 1;
+#else
+#error SUN_VCDREAD
+#endif
+}
+#endif	/*sun*/
+
+
+//================== VCD CACHE =======================
+#ifdef VCD_CACHE
+
+static int vcd_cache_size=0;
+static char *vcd_cache_data=NULL;
+static int *vcd_cache_sectors=NULL;
+static int vcd_cache_index=0; // index to first free (or oldest) cache sector
+static int vcd_cache_current=-1;
+
+void vcd_cache_init(int s){
+  vcd_cache_size=s;
+  vcd_cache_sectors=malloc(s*sizeof(int));
+  vcd_cache_data=malloc(s*VCD_SECTOR_SIZE);
+  memset(vcd_cache_sectors,255,s*sizeof(int));
+}
+
+static inline void vcd_cache_seek(int sect){
+  vcd_cache_current=sect;
+}
+
+int vcd_cache_read(int fd,char* mem){
+  int i;
+  char* vcd_buf;
+
+  for(i=0;i<vcd_cache_size;i++)
+    if(vcd_cache_sectors[i]==vcd_cache_current){
+      // found in the cache! :)
+      vcd_buf=&vcd_cache_data[i*VCD_SECTOR_SIZE];
+      ++vcd_cache_current;
+      memcpy(mem,&vcd_buf[VCD_SECTOR_OFFS],VCD_SECTOR_DATA);
+      return VCD_SECTOR_DATA;
+    }
+  // NEW cache entry:
+  vcd_buf=&vcd_cache_data[vcd_cache_index*VCD_SECTOR_SIZE];
+  vcd_cache_sectors[vcd_cache_index]=vcd_cache_current;
+  ++vcd_cache_index;if(vcd_cache_index>=vcd_cache_size)vcd_cache_index=0;
+  // read data!
+  vcd_set_msf(vcd_cache_current);
+#if	defined(linux) || defined(__bsdi__)
+  memcpy(vcd_buf,&vcd_entry.cdte_addr.msf,sizeof(struct cdrom_msf));
+  if(ioctl(fd,CDROMREADRAW,vcd_buf)==-1) return 0; // EOF?
+  memcpy(mem,&vcd_buf[VCD_SECTOR_OFFS],VCD_SECTOR_DATA);
+#elif	defined(sun)
+  {
+    int offset;
+    if (sun_vcd_read(fd, &offset) <= 0) return 0;
+    memcpy(mem,&vcd_buf[offset],VCD_SECTOR_DATA);
+  }
+#endif
+  ++vcd_cache_current;
+  return VCD_SECTOR_DATA;
+}
+#endif
+
+#else /* linux || sun */
+
+int vcd_seek_to_track(int fd,int track)
+{
+  return -1;
+}
+
+int vcd_get_track_end(int fd,int track)
+{
+  return -1;
+}
+
+void vcd_read_toc(int fd)
+{
+}
+
+static char vcd_buf[VCD_SECTOR_SIZE];
+
+static int vcd_read(int fd,char *mem)
+{
+  return -1;
+}
+
+#endif /* !linux && !sun */