Re: [virtio-dev] Re: Fwd: Qemu Support for Virtio Video V4L2 driver

2020-05-21 Thread Alexandre Courbot
On Thu, May 21, 2020 at 1:21 AM Nicolas Dufresne wrote: > > Le mercredi 20 mai 2020 à 12:19 +0900, Alexandre Courbot a écrit : > > On Wed, May 20, 2020 at 2:29 AM Nicolas Dufresne > > wrote: > > > Le mardi 19 mai 2020 à 17:37 +0900, Keiichi Watanabe a écrit : > > > > Hi Nicolas, > > > > > > > >

Re: [virtio-dev] Re: Fwd: Qemu Support for Virtio Video V4L2 driver

2020-05-20 Thread Nicolas Dufresne
Le mercredi 20 mai 2020 à 12:27 -0400, Michael S. Tsirkin a écrit : > On Wed, May 20, 2020 at 12:21:05PM -0400, Nicolas Dufresne wrote: > > Le mercredi 20 mai 2020 à 12:19 +0900, Alexandre Courbot a écrit : > > > On Wed, May 20, 2020 at 2:29 AM Nicolas Dufresne > > > wrote: > > > > Le mardi 19

Re: [virtio-dev] Re: Fwd: Qemu Support for Virtio Video V4L2 driver

2020-05-20 Thread Michael S. Tsirkin
On Wed, May 20, 2020 at 12:21:05PM -0400, Nicolas Dufresne wrote: > Le mercredi 20 mai 2020 à 12:19 +0900, Alexandre Courbot a écrit : > > On Wed, May 20, 2020 at 2:29 AM Nicolas Dufresne > > wrote: > > > Le mardi 19 mai 2020 à 17:37 +0900, Keiichi Watanabe a écrit : > > > > Hi Nicolas, > > >

Re: [virtio-dev] Re: Fwd: Qemu Support for Virtio Video V4L2 driver

2020-05-20 Thread Nicolas Dufresne
Le mercredi 20 mai 2020 à 12:19 +0900, Alexandre Courbot a écrit : > On Wed, May 20, 2020 at 2:29 AM Nicolas Dufresne wrote: > > Le mardi 19 mai 2020 à 17:37 +0900, Keiichi Watanabe a écrit : > > > Hi Nicolas, > > > > > > On Fri, May 15, 2020 at 8:38 AM Nicolas Dufresne < > > > nico...@ndufresne.

Re: [virtio-dev] Re: Fwd: Qemu Support for Virtio Video V4L2 driver

2020-05-20 Thread Alexandre Courbot
On Wed, May 20, 2020 at 2:29 AM Nicolas Dufresne wrote: > > Le mardi 19 mai 2020 à 17:37 +0900, Keiichi Watanabe a écrit : > > Hi Nicolas, > > > > On Fri, May 15, 2020 at 8:38 AM Nicolas Dufresne < > > nico...@ndufresne.ca > > > wrote: > > > Le lundi 11 mai 2020 à 20:49 +0900, Keiichi Watanabe a é

Re: [virtio-dev] Re: Fwd: Qemu Support for Virtio Video V4L2 driver

2020-05-19 Thread Nicolas Dufresne
n QEMU. > > > > > > Rather, QEMU forwards virtio-video requests to the host video device > > > > > > or a software library such as GStreamer or ffmpeg. > > > > > > So, what we need to implement in QEMU is a kind of API translation, &

Re: [virtio-dev] Re: Fwd: Qemu Support for Virtio Video V4L2 driver

2020-05-19 Thread Keiichi Watanabe
discussed in the patch thread [1], in my > > > > > understanding, Hans suggested to have QEMU implementation forwarding > > > > > requests to the host's vicodec module [2]. > > > > > Then, we'll be able to test the virtio-video driver on QEM

Re: [virtio-dev] Re: Fwd: Qemu Support for Virtio Video V4L2 driver

2020-05-14 Thread Nicolas Dufresne
ect me if I'm wrong.) > > > > > > > > Let me add Hans and Linux media ML in CC. > > > > > > > > [1] https://patchwork.linuxtv.org/patch/61717/ > > > > [2] https://lwn.net/Articles/760650/ > > > > > > > > Be

Re: [libcamera-devel] [virtio-dev] Re: Fwd: Qemu Support for Virtio Video V4L2 driver

2020-05-12 Thread Dmitry Sepp
Hi Laurent, On Montag, 11. Mai 2020 16:31:36 CEST Laurent Pinchart wrote: > > I don't think this would be the right level of abstraction. The V4L2 API > is way too low-level when it comes to camera paravirtualization (and may > not be the only API we'll have in the future). I thus recommend > vir

Re: [libcamera-devel] [virtio-dev] Re: Fwd: Qemu Support for Virtio Video V4L2 driver

2020-05-11 Thread Laurent Pinchart
Hello, Jumping in the middle of this thread, so I apologize if some of my comments are a bit out of context. On Mon, May 11, 2020 at 11:06:34PM +0900, Keiichi Watanabe wrote: > On Mon, May 11, 2020 at 9:33 PM Saket Sinha wrote: > > > > > I do not support the approach of QEMU implementation forw

Re: [virtio-dev] Re: Fwd: Qemu Support for Virtio Video V4L2 driver

2020-05-11 Thread Keiichi Watanabe
gt; > > > Best regards, > > > Keiichi > > > > > > > Please note that the spec is not finalized yet and a major update is now > > > > discussed with upstream and the Chrome OS team, which is also interested > > > > and deeply involved

Re: [virtio-dev] Re: Fwd: Qemu Support for Virtio Video V4L2 driver

2020-05-11 Thread Keiichi Watanabe
Hi Saket, On Mon, May 11, 2020 at 9:33 PM Saket Sinha wrote: > > Hi Keiichi, > > > > > I do not support the approach of QEMU implementation forwarding > > > > requests to the host's vicodec module since this can limit the scope > > > > of the virtio-video device only for testing, > > > > > > Th

Re: [virtio-dev] Re: Fwd: Qemu Support for Virtio Video V4L2 driver

2020-05-11 Thread Keiichi Watanabe
including virtio-dev, Gerd and > > Michael to point in the right direction how to move forward with Qemu > > support for Virtio Video V4L2 driver > > posted in [1]. > > > > [1]: https://patchwork.linuxtv.org/patch/61717/ > > > > Regards, > > Saket S

Re: Fwd: Qemu Support for Virtio Video V4L2 driver

2020-05-11 Thread Dmitry Sepp
forward with Qemu > support for Virtio Video V4L2 driver > posted in [1]. > > [1]: https://patchwork.linuxtv.org/patch/61717/ > > Regards, > Saket Sinha > > On Sat, May 9, 2020 at 1:09 AM Saket Sinha wrote: > > Hi , > > > > This is to inquire about Qemu

Re: [virtio-dev] Re: Fwd: Qemu Support for Virtio Video V4L2 driver

2020-05-11 Thread Dmitry Sepp
ggested on #qemu-devel IRC channel, I am including virtio-dev, > > > > Gerd and Michael to point in the right direction how to move forward > > > > with Qemu support for Virtio Video V4L2 driver > > > > posted in [1]. > > > > > > > > [1]: htt

Re: [virtio-dev] Re: Fwd: Qemu Support for Virtio Video V4L2 driver

2020-05-11 Thread Saket Sinha
Hi Keiichi, > > > I do not support the approach of QEMU implementation forwarding > > > requests to the host's vicodec module since this can limit the scope > > > of the virtio-video device only for testing, > > > > That was my understanding as well. > > Not really because the API which the vico

Re: [virtio-dev] Re: Fwd: Qemu Support for Virtio Video V4L2 driver

2020-05-11 Thread Michael S. Tsirkin
lease note that the spec is not finalized yet and a major update is now > > > > discussed with upstream and the Chrome OS team, which is also interested > > > > and deeply involved in the process. The update mostly implies some > > > > rewording and reorganizati

Re: [virtio-dev] Re: Fwd: Qemu Support for Virtio Video V4L2 driver

2020-05-11 Thread Michael S. Tsirkin
patchwork.linuxtv.org/patch/61717/ > > > [2] https://lwn.net/Articles/760650/ > > > > > > Best regards, > > > Keiichi > > > > > > > Please note that the spec is not finalized yet and a major update is now > > > > discussed w

Re: [virtio-dev] Re: Fwd: Qemu Support for Virtio Video V4L2 driver

2020-05-11 Thread Saket Sinha
ards, > > Dmitry. > > > > On Samstag, 9. Mai 2020 16:11:43 CEST Saket Sinha wrote: > > > Hi, > > > > > > As suggested on #qemu-devel IRC channel, I am including virtio-dev, Gerd > > > and > > > Michael to point in the ri

Fwd: Qemu Support for Virtio Video V4L2 driver

2020-05-09 Thread Saket Sinha
Hi, As suggested on #qemu-devel IRC channel, I am including virtio-dev, Gerd and Michael to point in the right direction how to move forward with Qemu support for Virtio Video V4L2 driver posted in [1]. [1]: https://patchwork.linuxtv.org/patch/61717/ Regards, Saket Sinha On Sat, May 9, 2020 at

Re: Qemu Support for Virtio Video V4L2 driver

2020-05-09 Thread Saket Sinha
Hi, As suggested on #qemu-devel IRC channel, I am including Gerd and Michael to point in the right direction how to move forward with Qemu support for Virtio Video V4L2 driver posted in [1]. [1]: https://patchwork.linuxtv.org/patch/61717/ Regards, Saket Sinha On Sat, May 9, 2020 at 1:09 AM

Qemu Support for Virtio Video V4L2 driver

2020-05-08 Thread Saket Sinha
Hi , This is to inquire about Qemu support for Virtio Video V4L2 driver posted in [1]. I am currently not aware of any upstream effort for Qemu reference implementation and would like to discuss how to proceed with the same. [1]: https://patchwork.linuxtv.org/patch/61717/ Regards, Saket Sinha