[Ffmpeg-devel] compressed v4l2 images

[Luca Abeni]

Hi Michael,

On Sat, 2007-02-10 at 17:23 +0100, Michael Niedermayer wrote:
[...]
> > +    if ((*width != fmt.fmt.pix.width) || (*height != fmt.fmt.pix.height)) {
> > +        av_log(NULL, AV_LOG_INFO, "The V4L2 driver changed the video from %dx%d to %dx%d\n", *width, *height, fmt.fmt.pix.width, fmt.fmt.pix.height);
> 
> please provide a context to av_log (AVFormatContxt will do), i dont want to
> see to many new av_log(NULL, ...) they cause problems in multithreded
> apps
Tomorrow I'll fix v4l2.c to pass proper contexts to av_log() as much as
possibile, and I'll update this patch in a similar way.

[...]
> > +    /* Image is at s->buff_start[buf.index] */
> > +    memcpy(pkt->data, s->buf_start[buf.index], buf.bytesused);
> 
> can that memcpy be avoided? (directly grabing into AVPacket.data)?
I had a patch for doing something similar, but the patch had some
problems (I do not remember right now). I'll search for it in the next
days.


				Luca