On 02/18/11 02:41, Arun Raghavan wrote: > Hello! > > On Tue, 2011-02-15 at 22:02 +0530, Arun Raghavan wrote: >> Hey folks, >> I've put up a draft proposed API changes to get passthrough support to >> the point where things Just Work? for at least the common cases, based >> on previous discussion on-/off-list: >> >> http://pulseaudio.org/wiki/PassthroughSupport >> >> Please review/comment. Once we have some consensus, I'll send in patches >> to actually get this done. > I've updated this page with the changes discussed so far (and translated > them into the actual API changes that we need). Please take a look and > let me know if this looks acceptable. > > Cheers, > Arun > > _______________________________________________ > pulseaudio-discuss mailing list > pulseaudio-discuss at mail.0pointer.de > https://tango.0pointer.de/mailman/listinfo/pulseaudio-discuss The alsa driver has creates a /proc entry that lists the coding types available for a particular device. It'd be nice if you would use that for the list of supported coding types (at least for a default). I'm not sure the list would be automatically updated if you unplugged a device and plugged in a new device. The comprehensive list of supported coding types is in alsa-kernel/pci/hda/hda-eld.c. cat /proc/asound/card0/eld#1.0 monitor_present 1 eld_valid 1 monitor_name TX-SR608 connection_type HDMI eld_version [0x2] CEA-861D or below edid_version [0x3] CEA-861-B, C or D manufacture_id 0xcb3d product_id 0xa62 port_id 0x20000 support_hdcp 0 support_ai 0 audio_sync_delay 0 speakers [0x4f] FL/FR LFE FC RL/RR RLC/RRC sad_count 8 sad0_coding_type [0x1] LPCM sad0_channels 2 sad0_rates [0x1ee0] 44100 48000 88200 176400 192000 384000 sad0_bits [0xe0000] 16 20 24 sad1_coding_type [0x1] LPCM sad1_channels 8 sad1_rates [0x1ee0] 44100 48000 88200 176400 192000 384000 sad1_bits [0xe0000] 16 20 24 sad2_coding_type [0x2] AC-3 sad2_channels 8 sad2_rates [0xe0] 44100 48000 88200 sad2_max_bitrate 640000 sad3_coding_type [0x7] DTS sad3_channels 8 sad3_rates [0xc0] 48000 88200 sad3_max_bitrate 1536000 sad4_coding_type [0x9] DSD (One Bit Audio) sad4_channels 6 sad4_rates [0x40] 48000 sad5_coding_type [0xa] E-AC-3/DD+ (Dolby Digital Plus) sad5_channels 8 sad5_rates [0xc0] 48000 88200 sad6_coding_type [0xb] DTS-HD sad6_channels 8 sad6_rates [0x1ec0] 48000 88200 176400 192000 384000 sad7_coding_type [0xc] MLP (Dolby TrueHD) sad7_channels 8 sad7_rates [0x1480] 88200 192000
