On 14. 08. 24 13:58, Pierre-Louis Bossart wrote:
On 8/14/24 13:12, Shengjiu Wang wrote:
On Wed, Aug 14, 2024 at 5:40 PM Pierre-Louis Bossart
wrote:
Yes, to go further, I think we can use SND_AUDIOCODEC_PCM, then
the SRC type will be dropped.
sounds good.
But my understanding of the co
On 8/14/24 13:12, Shengjiu Wang wrote:
> On Wed, Aug 14, 2024 at 5:40 PM Pierre-Louis Bossart
> wrote:
>>
>>
>>> Yes, to go further, I think we can use SND_AUDIOCODEC_PCM, then
>>> the SRC type will be dropped.
>>
>> sounds good.
>>
>>> But my understanding of the control means the .set_metadat
On Wed, Aug 14, 2024 at 5:40 PM Pierre-Louis Bossart
wrote:
>
>
> > Yes, to go further, I think we can use SND_AUDIOCODEC_PCM, then
> > the SRC type will be dropped.
>
> sounds good.
>
> > But my understanding of the control means the .set_metadata() API, right?
> > As I said, the output rate, out
> Yes, to go further, I think we can use SND_AUDIOCODEC_PCM, then
> the SRC type will be dropped.
sounds good.
> But my understanding of the control means the .set_metadata() API, right?
> As I said, the output rate, output format, and ratio modifier are applied to
> the instances of ASRC, whi
On Mon, Aug 12, 2024 at 9:44 PM Pierre-Louis Bossart
wrote:
>
>
>
> On 8/12/24 15:31, Jaroslav Kysela wrote:
> > On 12. 08. 24 12:24, Shengjiu Wang wrote:
> >> On Fri, Aug 9, 2024 at 10:01 PM Jaroslav Kysela wrote:
> >>>
> >>> On 09. 08. 24 14:52, Pierre-Louis Bossart wrote:
> >>>
> > And met
On 8/12/24 15:31, Jaroslav Kysela wrote:
> On 12. 08. 24 12:24, Shengjiu Wang wrote:
>> On Fri, Aug 9, 2024 at 10:01 PM Jaroslav Kysela wrote:
>>>
>>> On 09. 08. 24 14:52, Pierre-Louis Bossart wrote:
>>>
> And metadata
> ioctl can be called many times which can meet the ratio modifier
>
On 12. 08. 24 12:24, Shengjiu Wang wrote:
On Fri, Aug 9, 2024 at 10:01 PM Jaroslav Kysela wrote:
On 09. 08. 24 14:52, Pierre-Louis Bossart wrote:
And metadata
ioctl can be called many times which can meet the ratio modifier
requirement (ratio may be drift on the fly)
Interesting, that's ye
On Fri, Aug 9, 2024 at 10:01 PM Jaroslav Kysela wrote:
>
> On 09. 08. 24 14:52, Pierre-Louis Bossart wrote:
>
> >> And metadata
> >> ioctl can be called many times which can meet the ratio modifier
> >> requirement (ratio may be drift on the fly)
> >
> > Interesting, that's yet another way of hand
>>> And metadata
>>> ioctl can be called many times which can meet the ratio modifier
>>> requirement (ratio may be drift on the fly)
>>
>> Interesting, that's yet another way of handling the drift with userspace
>> modifying the ratio dynamically. That's different to what I've seen
>> before.
>
On 09. 08. 24 14:52, Pierre-Louis Bossart wrote:
And metadata
ioctl can be called many times which can meet the ratio modifier
requirement (ratio may be drift on the fly)
Interesting, that's yet another way of handling the drift with userspace
modifying the ratio dynamically. That's different
On 09. 08. 24 12:14, Shengjiu Wang wrote:
On Fri, Aug 9, 2024 at 3:25 PM Pierre-Louis Bossart
wrote:
Then there's the issue of parameters, we chose to only add parameters
for standard encoders/decoders. Post-processing is highly specific and
the parameter definitions varies from one implemen
> Why I use the metadata ioctl is because the ALSA controls are binding
> to the sound card. What I want is the controls can be bound to
> snd_compr_stream, because the ASRC compress sound card can
> support multi instances ( the ASRC can support multi conversion in
> parallel). The ALSA contr
On Fri, Aug 9, 2024 at 3:25 PM Pierre-Louis Bossart
wrote:
>
>
> Then there's the issue of parameters, we chose to only add parameters
> for standard encoders/decoders. Post-processing is highly specific and
> the parameter definitions varies from one implementation to another -
> >
Then there's the issue of parameters, we chose to only add parameters
for standard encoders/decoders. Post-processing is highly specific and
the parameter definitions varies from one implementation to another -
and usually parameters are handled in an opaque way with binary
>>
On 08. 08. 24 14:19, Pierre-Louis Bossart wrote:
files changed, 10 insertions(+), 1 deletion(-)
diff --git a/include/uapi/sound/compress_offload.h b/include/uapi/
sound/compress_offload.h
index 98772b0cbcb7..8b2b72f94e26 100644
--- a/include/uapi/sound/compress_offload.h
+++ b/include/uapi/so
files changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/include/uapi/sound/compress_offload.h b/include/uapi/
> sound/compress_offload.h
> index 98772b0cbcb7..8b2b72f94e26 100644
> --- a/include/uapi/sound/compress_offload.h
> +++ b/include/uapi/sound/compress_offlo
On 08. 08. 24 13:27, Pierre-Louis Bossart wrote:
On 8/8/24 11:17, Shengjiu Wang wrote:
On Tue, Aug 6, 2024 at 7:25 PM Pierre-Louis Bossart
wrote:
On 8/6/24 12:26, Shengjiu Wang wrote:
Add Sample Rate Converter(SRC) codec support, define the output
format and rate for SRC.
Signed-off-by:
On 8/8/24 11:17, Shengjiu Wang wrote:
> On Tue, Aug 6, 2024 at 7:25 PM Pierre-Louis Bossart
> wrote:
>>
>>
>>
>> On 8/6/24 12:26, Shengjiu Wang wrote:
>>> Add Sample Rate Converter(SRC) codec support, define the output
>>> format and rate for SRC.
>>>
>>> Signed-off-by: Shengjiu Wang
>>> ---
>
On Tue, Aug 6, 2024 at 7:25 PM Pierre-Louis Bossart
wrote:
>
>
>
> On 8/6/24 12:26, Shengjiu Wang wrote:
> > Add Sample Rate Converter(SRC) codec support, define the output
> > format and rate for SRC.
> >
> > Signed-off-by: Shengjiu Wang
> > ---
> > include/uapi/sound/compress_offload.h | 2 ++
All-
"The sample rate converter is not an encoder ..."
Indeed, an encoder creates a compressed bitstream from audio data
(typically linear PCM samples), normally for transmission of some
type. A sample rate converter generates audio data from audio data,
and is normally applied prior to an
On 8/6/24 12:26, Shengjiu Wang wrote:
> Add Sample Rate Converter(SRC) codec support, define the output
> format and rate for SRC.
>
> Signed-off-by: Shengjiu Wang
> ---
> include/uapi/sound/compress_offload.h | 2 ++
> include/uapi/sound/compress_params.h | 9 -
> 2 files changed, 1
Add Sample Rate Converter(SRC) codec support, define the output
format and rate for SRC.
Signed-off-by: Shengjiu Wang
---
include/uapi/sound/compress_offload.h | 2 ++
include/uapi/sound/compress_params.h | 9 -
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/include/uapi
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