Manu Abraham wrote:
Johannes Stezenbach wrote:
On Wed, Apr 12, 2006, Manu Abraham wrote:
Andreas Oberritter wrote:
+typedef enum {
+ DMX_PROTO_DVB_S,
+ DMX_PROTO_DVB_C,
+ DMX_PROTO_DVB_T,
+ DMX_PROTO_DSS,
+ DMX_PROTO_ATSC,
+ DMX_PROTO_DVB_S2
+} dmx_protocol_t;
Why should a demux care how the TS was delivered? All DVB variants and
ATSC use MPEG-2 TS, right? I don't know about DSS though.
Some protocols need different SYNC words , stream lengths etc for
the demuxer to work (DSS and DVB-S2 differ from DVB-S/C/T/ATSC) DSS
has a different SYNC word and a different stream lengths, but S2 has
more modes of operation which again needs this.
So there are 3 different categories
(1) DVB--> DVB-S/C/T/ATSC
(2) DSS
(3) DVB-S2 --> multiple modes
"Protocol" is wrong, it should be named "transport stream format",
A delivery system sounds acceptable ?
typedef enum {
FE_DELSYS_DVB_S = 0x00000001,
FE_DELSYS_DVB_S2 = 0x00000002,
FE_DELSYS_DVB_C, = 0x00000004,
FE_DELSYS_DVB_T, = 0x00000008,
FE_DELSYS_DSS = 0x00000010,
FE_DELSYS_ATSC = 0x00000020
} fe_delsys_t;
This sounds right to me. As far as i know DSS also uses MPEG2 TS format,
so in all cases the difference is in the higher layer tables.
And the difference between DVB-S2 and DVB-S is the modulation. There is
as far as i know no difference in the tables between DVB-S and DVB-S2
(other than the differences forced by the additional modulations).
Cheers,
Rudy
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