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 â?? Samsung HD (found on Samsung LEVEL Link) >>> Value hex dump: 7a >>> >>> 0xFF 0x000A 0x0103 â?? Unknown codec found on Bose QuietComfort QC35 II >>> Value hex dump: 07 06 00 00 ff ff 02 35 >>> >>> 0xFF 0x000A 0x0104 â?? 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 â?? Samsung Scalable Codec Raw value: 7a Connection established (SetConfiguration) with raw value 28. Dumped from Samsung Galaxy S7 edge - Samsung U Flex
