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-rw-r--r--stream/vcd_read.h245
1 files changed, 245 insertions, 0 deletions
diff --git a/stream/vcd_read.h b/stream/vcd_read.h
new file mode 100644
index 0000000000..7cd4218eff
--- /dev/null
+++ b/stream/vcd_read.h
@@ -0,0 +1,245 @@
+//=================== VideoCD ==========================
+#if defined(linux) || defined(sun) || defined(__bsdi__)
+
+typedef struct mp_vcd_priv_st mp_vcd_priv_t;
+
+#if defined(linux)
+#include <linux/cdrom.h>
+#elif defined(sun)
+#include <sys/cdio.h>
+static int sun_vcd_read(mp_vcd_priv_t*, int*);
+#elif defined(__bsdi__)
+#include <dvd.h>
+#endif
+
+struct mp_vcd_priv_st {
+ int fd;
+ struct cdrom_tocentry entry;
+ char buf[VCD_SECTOR_SIZE];
+};
+
+static inline void vcd_set_msf(mp_vcd_priv_t* vcd, 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(mp_vcd_priv_t* vcd){
+ 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(mp_vcd_priv_t* vcd,int track){
+ vcd->entry.cdte_format = CDROM_MSF;
+ vcd->entry.cdte_track = track;
+ if (ioctl(vcd->fd, CDROMREADTOCENTRY, &vcd->entry)) {
+ mp_msg(MSGT_STREAM,MSGL_ERR,"ioctl dif1: %s\n",strerror(errno));
+ return -1;
+ }
+ return VCD_SECTOR_DATA*vcd_get_msf(vcd);
+}
+
+int vcd_get_track_end(mp_vcd_priv_t* vcd,int track){
+ struct cdrom_tochdr tochdr;
+ if (ioctl(vcd->fd,CDROMREADTOCHDR,&tochdr)==-1) {
+ mp_msg(MSGT_STREAM,MSGL_ERR,"read CDROM toc header: %s\n",strerror(errno));
+ return -1;
+ }
+ vcd->entry.cdte_format = CDROM_MSF;
+ vcd->entry.cdte_track = track<tochdr.cdth_trk1?(track+1):CDROM_LEADOUT;
+ if (ioctl(vcd->fd, CDROMREADTOCENTRY, &vcd->entry)) {
+ mp_msg(MSGT_STREAM,MSGL_ERR,"ioctl dif2: %s\n",strerror(errno));
+ return -1;
+ }
+ return VCD_SECTOR_DATA*vcd_get_msf(vcd);
+}
+
+mp_vcd_priv_t* vcd_read_toc(int fd){
+ struct cdrom_tochdr tochdr;
+ mp_vcd_priv_t* vcd;
+ int i, min = 0, sec = 0, frame = 0;
+ if (ioctl(fd,CDROMREADTOCHDR,&tochdr)==-1) {
+ mp_msg(MSGT_OPEN,MSGL_ERR,"read CDROM toc header: %s\n",strerror(errno));
+ return NULL;
+ }
+ mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_START_TRACK=%d\n", tochdr.cdth_trk0);
+ mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_END_TRACK=%d\n", tochdr.cdth_trk1);
+ for (i=tochdr.cdth_trk0 ; i<=tochdr.cdth_trk1 + 1; i++){
+ struct cdrom_tocentry tocentry;
+
+ tocentry.cdte_track = i<=tochdr.cdth_trk1 ? i : CDROM_LEADOUT;
+ tocentry.cdte_format = CDROM_MSF;
+
+ if (ioctl(fd,CDROMREADTOCENTRY,&tocentry)==-1) {
+ mp_msg(MSGT_OPEN,MSGL_ERR,"read CDROM toc entry: %s\n",strerror(errno));
+ return NULL;
+ }
+
+ if (i<=tochdr.cdth_trk1)
+ 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
+ );
+
+ if (mp_msg_test(MSGT_IDENTIFY, MSGL_INFO))
+ {
+ if (i > tochdr.cdth_trk0)
+ {
+ min = tocentry.cdte_addr.msf.minute - min;
+ sec = tocentry.cdte_addr.msf.second - sec;
+ frame = tocentry.cdte_addr.msf.frame - frame;
+ if ( frame < 0 )
+ {
+ frame += 75;
+ sec --;
+ }
+ if ( sec < 0 )
+ {
+ sec += 60;
+ min --;
+ }
+ mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_TRACK_%d_MSF=%02d:%02d:%02d\n", i - 1, min, sec, frame);
+ }
+ min = tocentry.cdte_addr.msf.minute;
+ sec = tocentry.cdte_addr.msf.second;
+ frame = tocentry.cdte_addr.msf.frame;
+ }
+ }
+ vcd = malloc(sizeof(mp_vcd_priv_t));
+ vcd->fd = fd;
+ return vcd;
+}
+
+static int vcd_read(mp_vcd_priv_t* vcd,char *mem){
+#if defined(linux) || defined(__bsdi__)
+ memcpy(vcd->buf,&vcd->entry.cdte_addr.msf,sizeof(struct cdrom_msf));
+ if(ioctl(vcd->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(vcd->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(mp_vcd_priv_t* vcd, int *offset)
+{
+#if SUN_VCDREAD == SUN_XAREAD
+ struct cdrom_cdxa cdxa;
+ cdxa.cdxa_addr = vcd_get_msf(vcd);
+ cdxa.cdxa_length = 1;
+ cdxa.cdxa_data = vcd->buf;
+ cdxa.cdxa_format = CDROM_XA_SECTOR_DATA;
+
+ if(ioctl(vcd->fd,CDROMCDXA,&cdxa)==-1) {
+ mp_msg(MSGT_STREAM,MSGL_ERR,"CDROMCDXA: %s\n",strerror(errno));
+ return 0;
+ }
+ *offset = 0;
+#elif SUN_VCDREAD == SUN_MODE2READ
+ struct cdrom_read cdread;
+ cdread.cdread_lba = 4*vcd_get_msf(vcd);
+ cdread.cdread_bufaddr = vcd->buf;
+ cdread.cdread_buflen = 2336;
+
+ if(ioctl(vcd->fd,CDROMREADMODE2,&cdread)==-1) {
+ mp_msg(MSGT_STREAM,MSGL_ERR,"CDROMREADMODE2: %s\n",strerror(errno));
+ return 0;
+ }
+ *offset = 8;
+#elif SUN_VCDREAD == SUN_SCSIREAD
+ struct uscsi_cmd sc;
+ union scsi_cdb cdb;
+ int lba = vcd_get_msf(vcd);
+ 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(vcd->fd, USCSICMD, &sc)) {
+ mp_msg(MSGT_STREAM,MSGL_ERR,"USCSICMD: READ CD: %s\n",strerror(errno));
+ return -1;
+ }
+ if (sc.uscsi_status) {
+ mp_msg(MSGT_STREAM,MSGL_ERR,"scsi command failed with status %d\n", sc.uscsi_status);
+ return -1;
+ }
+ *offset = 0;
+ return 1;
+#else
+#error SUN_VCDREAD
+#endif
+}
+#endif /*sun*/
+
+#else /* linux || sun || __bsdi__ */
+
+#error vcd is not yet supported on this arch...
+
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-25 06:47:00 +0000