On 10.08.2018 20:35, ValdikSS wrote: > > On 10.08.2018 13:31, ValdikSS wrote: >> On 10.08.2018 10:57, Pali Rohár wrote: >>> On Thursday 09 August 2018 16:39:09 ValdikSS wrote: >>>> On 06.07.2018 13:25, Pali Rohár wrote: >>>>> I did some investigation and basically this is the list of all known >>>>> codecs used in A2DP: >>>>> >>>>> Mandatory: >>>>> 0x00 - SBC >>>>> >>>>> Optional: >>>>> 0x01 - MPEG-1,2 (aka MP3) >>>>> 0x02 - MPEG-2,4 (aka AAC) >>>>> 0x04 - ATRAC >>>>> >>>>> Vendor specific: >>>>> 0xFF 0x004F 0x01 - aptX >>>>> 0xFF 0x000A 0x01 - FastStream >>>>> 0xFF 0x000A 0x02 - aptX Low Latency >>>>> 0xFF 0x00D7 0x24 - aptX HD >>>>> 0xFF 0x012D 0xAA - LDAC >>>>> >>>>> And also I found some references that some sort of raw 16bit PCM samples >>>>> via codec id 0x05 are used... But I have never seen such product. >>>>> >>>> Could it be Samsung UHQ-BT? >>>> https://www.samsung.com/uk/mobile-accessories/level-on-pro-wireless-headset-pn920/EO-PN920CFEGWW/ >>>> >>>> There are also: >>>> 0xFF 0x0075 0x0102 — Samsung HD (found on Samsung LEVEL Link) >>>> Value hex dump: 7a >>>> >>>> 0xFF 0x000A 0x0103 — Unknown codec found on Bose QuietComfort QC35 II >>>> Value hex dump: 07 06 00 00 ff ff 02 35 >>>> >>>> 0xFF 0x000A 0x0104 — Unknown codec found on Bose QuietComfort QC35 II >>>> Value hex dump: 07 08 00 02 c0 ff 8c 84 e2 00 >>>> >>>> >>>> Samsung LEVEL on/on pro also have support for what Samsung call "Scalable >>>> Codec". >>> Interesting... I have not found any information about these A2DP codecs. >>> I guess that "0xFF 0x0075 0x0102" would be that Samsung Scalable Codec. >>> But others two allocated in QTIL vendor ID seems like some Qualcomm >>> specific codec, or some variant of low latency codec or variant of aptX >>> codec. >>> >> "0xFF 0x0075 0x0102" is a Samsung HD codec. Scalable codec and UHQ-BT are >> two another codecs from Samsung. You can choose between Samsung HD and >> Scalable Codec A2DP codecs on Samsung Android devices. >> https://img.gadgethacks.com/img/32/08/63656409124633/0/improve-bluetooth-audio-your-galaxy-s9-with-custom-codecs.w1456.jpg >> >> Bose headset where unknown CSR codecs have been found has no license for >> aptX. It supports only SBC, AAC and these two unknown codecs. >> >> Scalable codec should be supported in Samsung U Flex and Samsung Gear IconX >> 2018. UHQ-BT could be found in Samsung LEVEL on pro. >> I'll try to make a dump of Samsung U Flex or Samsung Gear IconX 2018, but >> Samsung LEVEL on pro are rather rare nowadays. >> > 0xFF 0x0075 0x0103 — Samsung Scalable Codec > Raw value: 7a > > Connection established (SetConfiguration) with raw value 28. > Dumped from Samsung Galaxy S7 edge - Samsung U Flex > >
0xFF 0x053A 0x484C — Savitech LHDC https://www.hwa-lhdc.org/how-it-works
signature.asc
Description: OpenPGP digital signature
_______________________________________________ pulseaudio-discuss mailing list pulseaudio-discuss@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss