i.MX ProcessorsのトピックRe: Audio decoding on i.MX6UL(6ULL) linux BSP

Audio decoding on i.MX6UL(6ULL) linux BSP

杉原昇 — Tue, 19 Dec 2017 06:23:48 GMT

Dear community,

When an audio-only playback command is called on the i.MX6UL/ULL Linux GStreamer framework, is the corresponding audio decoding library performed on Cortex A7?
As you know, i.MX6UL/ULL has no AV codec hardware, I believe audio decoding should be done by software library, but I'd like to confirm about this.

Regarding audio decoding format, is AAC avalable on the software-library-based solution noted above, as well as MP3?

BR,
N. Sugihara

Re: Audio decoding on i.MX6UL(6ULL) linux BSP

joanxie — Fri, 22 Dec 2017 09:01:04 GMT

refer to the mx6UL Reference Manual, Audio codecs are provided by SW, which runs on ARM core, supporting
(but not limited to) MP3, WMA, AAC, HE-AAC and Pro10

Re: Audio decoding on i.MX6UL(6ULL) linux BSP

杉原昇 — Sat, 23 Dec 2017 05:15:47 GMT

Dear Joan,

Thank yoy for your reply.

Are these audio codecs, MP3/WMA/AAC/HE-AAC, supported on the BSP level?

In other words, are these codec SW libraries packaged in the reference BSP from NXP?

I think so, but I'd like to confirm.

BR,

N. Sugihara

Re: Audio decoding on i.MX6UL(6ULL) linux BSP

joanxie — Wed, 03 Jan 2018 08:38:27 GMT

yes, can support it, but some codec like wma, aacplus, maybe you need license for them.

Re: Audio decoding on i.MX6UL(6ULL) linux BSP

杉原昇 — Wed, 03 Jan 2018 22:23:19 GMT

Dear Joan,

Thanks a lot.

Understand that i.MX6 UL/ULL BSP provides the audio codecs SW libraries.

Besides, noted surely some codecs force me to take the licenses.

BR,
N. Sugihara

Re: Audio decoding on i.MX6UL(6ULL) linux BSP

joanxie — Thu, 04 Jan 2018 08:34:18 GMT

in additional, mx6ul doesn't includes vpu, so coding by SW.