VP9 Hardware Accelerated Encode/Decode Capability Detection

[Mpendulo Ndlovu]

I have been looking at WebRTC code and the VP9 library to see where hardware acceleration encode/decode capability detection is done, and if not supported do a fallback to software implementation but I have not found it yet. Is it currently being used in WebRTC and VP9, and where could I find it in the WebRTC code?

Also, I noted from client implementations that H264 is the preferred option alongside ISAC for audio (instead of Opus?) I wish to use PCMU, and I wonder if it also does hardware encoding/decoding? I am also curious if VP9 does have audio encode/decode ability, I haven't seen anything like ti but a colleague has a suspicion.

[PhistucK]

VP9 is a video codec, so no audio.

☆PhistucK

On Thu, Oct 15, 2015 at 12:42 PM, Mpendulo Ndlovu <mpe...@gmail.com> wrote:

I have been looking at WebRTC code and the VP9 library to see where hardware acceleration encode/decode capability detection is done, and if not supported do a fallback to software implementation but I have not found it yet. Is it currently being used in WebRTC and VP9, and where could I find it in the WebRTC code?

Also, I noted from client implementations that H264 is the preferred option alongside ISAC for audio (instead of Opus?) I wish to use PCMU, and I wonder if it also does hardware encoding/decoding? I am also curious if VP9 does have audio encode/decode ability, I haven't seen anything like ti but a colleague has a suspicion.

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[Harald Alvestrand]

H264 and VP9 are video codecs; iSAC, Opus and PCMU are audio codecs.

They should be viewed as completely separate things; there's no such thing as encoding audio with a video codec.

(Waiting for others to answer your other questions.)

On Thu, Oct 15, 2015 at 11:42 AM, Mpendulo Ndlovu <mpe...@gmail.com> wrote:

I have been looking at WebRTC code and the VP9 library to see where hardware acceleration encode/decode capability detection is done, and if not supported do a fallback to software implementation but I have not found it yet. Is it currently being used in WebRTC and VP9, and where could I find it in the WebRTC code?

Also, I noted from client implementations that H264 is the preferred option alongside ISAC for audio (instead of Opus?) I wish to use PCMU, and I wonder if it also does hardware encoding/decoding? I am also curious if VP9 does have audio encode/decode ability, I haven't seen anything like ti but a colleague has a suspicion.

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