diff options
Diffstat (limited to 'drivers/media/usb')
-rw-r--r-- | drivers/media/usb/ttusb-dec/ttusb_dec.c | 58 |
1 files changed, 57 insertions, 1 deletions
diff --git a/drivers/media/usb/ttusb-dec/ttusb_dec.c b/drivers/media/usb/ttusb-dec/ttusb_dec.c index 4e7671a3a1e4..35d5003ff809 100644 --- a/drivers/media/usb/ttusb-dec/ttusb_dec.c +++ b/drivers/media/usb/ttusb-dec/ttusb_dec.c @@ -36,7 +36,6 @@ #include "dmxdev.h" #include "dvb_demux.h" -#include "dvb_filter.h" #include "dvb_frontend.h" #include "dvb_net.h" #include "ttusbdecfe.h" @@ -92,6 +91,15 @@ enum ttusb_dec_interface { TTUSB_DEC_INTERFACE_OUT }; +typedef int (dvb_filter_pes2ts_cb_t) (void *, unsigned char *); + +struct dvb_filter_pes2ts { + unsigned char buf[188]; + unsigned char cc; + dvb_filter_pes2ts_cb_t *cb; + void *priv; +}; + struct ttusb_dec { enum ttusb_dec_model model; char *model_name; @@ -201,6 +209,54 @@ static u16 rc_keys[] = { KEY_RADIO }; +static void dvb_filter_pes2ts_init(struct dvb_filter_pes2ts *p2ts, + unsigned short pid, + dvb_filter_pes2ts_cb_t *cb, void *priv) +{ + unsigned char *buf=p2ts->buf; + + buf[0]=0x47; + buf[1]=(pid>>8); + buf[2]=pid&0xff; + p2ts->cc=0; + p2ts->cb=cb; + p2ts->priv=priv; +} + +static int dvb_filter_pes2ts(struct dvb_filter_pes2ts *p2ts, + unsigned char *pes, int len, int payload_start) +{ + unsigned char *buf=p2ts->buf; + int ret=0, rest; + + //len=6+((pes[4]<<8)|pes[5]); + + if (payload_start) + buf[1]|=0x40; + else + buf[1]&=~0x40; + while (len>=184) { + buf[3]=0x10|((p2ts->cc++)&0x0f); + memcpy(buf+4, pes, 184); + if ((ret=p2ts->cb(p2ts->priv, buf))) + return ret; + len-=184; pes+=184; + buf[1]&=~0x40; + } + if (!len) + return 0; + buf[3]=0x30|((p2ts->cc++)&0x0f); + rest=183-len; + if (rest) { + buf[5]=0x00; + if (rest-1) + memset(buf+6, 0xff, rest-1); + } + buf[4]=rest; + memcpy(buf+5+rest, pes, len); + return p2ts->cb(p2ts->priv, buf); +} + static void ttusb_dec_set_model(struct ttusb_dec *dec, enum ttusb_dec_model model); |