Hi Philipp, 2014-11-26 18:31 GMT+01:00 Jean-Michel Hautbois <jean-michel.hautbois@xxxxxxxxxxx>: > Hi Philipp, > > Thanks for answering. > > 2014-11-26 17:55 GMT+01:00 Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>: >> Hi Jean-Michel, >> >> Am Mittwoch, den 26.11.2014, 14:33 +0100 schrieb Jean-Michel Hautbois: >>> Hi, >>> >>> We are writing a gstreamer plugin to support CODA960 encoder on i.MX6, >>> and it is not working so now trying to use v4l2-ctl for the moment. >>> As I am asking about encoder, is there a way to make it support YUYV >>> as input or is the firmware not able to do it ? I could not find a >>> reference manual about that... >> >> The H.264 and MPEG-4 encoders support planar 4:2:0 subsampled formats >> only: YU12, YV12, and chroma-interleaved NV12. >> The JPEG encoder can also handle planar 4:2:2 subsampled frames, but >> none of the interleaved (YUYV, UYVY, ...) variants. > > OK, just read this in TRM. This means that when the sensor is YUV > 4:2:2 (say, a ADV76xx :)) it will have to be converted to NV12 in > order to have it as input of the encoder... > >>> So back to the issue. >>> $> cat /sys/class/video4linux/video0/name >>> coda-encoder >>> $> v4l2-ctl -d0 --list-formats >>> ioctl: VIDIOC_ENUM_FMT >>> Index : 0 >>> Type : Video Capture >>> Pixel Format: 'H264' (compressed) >>> Name : H264 Encoded Stream >>> >>> Index : 1 >>> Type : Video Capture >>> Pixel Format: 'MPG4' (compressed) >>> Name : MPEG4 Encoded Stream >>> >>> $> v4l2-ctl -d0 --list-formats-out >>> ioctl: VIDIOC_ENUM_FMT >>> Index : 0 >>> Type : Video Output >>> Pixel Format: 'YU12' >>> Name : YUV 4:2:0 Planar, YCbCr >>> >>> Index : 1 >>> Type : Video Output >>> Pixel Format: 'YV12' >>> Name : YUV 4:2:0 Planar, YCrCb >> >> Please apply all coda patches in the media-tree master branch first. >> The output format list should include NV12 then. > > OK, applying right now. > >>> ==> First question, vid-cap should be related to the capture format, >>> so YUV format in the encoder case, no ? >>> >>> $> v4l2-ctl -d0 --set-fmt-video-out=width=1280,height=720,pixelformat=YU12 >>> $> v4l2-ctl -d0 --stream-mmap --stream-out-mmap --stream-to x.raw >>> unsupported pixelformat >>> VIDIOC_STREAMON: failed: Invalid argument >> >> On v3.18-rc6 with the coda patches currently in the pipeline applied, I >> get this: >> >> $ v4l2-ctl -d0 --set-fmt-video-out=width=1280,height=720,pixelformat=YU12 >> $ v4l2-ctl -d0 --stream-mmap --stream-out-mmap --stream-to x.raw >> K>P>P>P>P>P>P>P>P>P>P>P>P>P>P>P>K>P>P>P>P>P>P>P>P>P>P>P>P>P>P>P>K>P>P>P>P>P>P 38 fps >>> 38 fps I don't have the same behaviour, but I may have missed a patch. I have taken linux-next and rebased my work on it. I have some issues, but nothing to be worried about, no link with coda. I get the following : $> v4l2-ctl -d0 --set-fmt-video-out=width=1280,height=720,pixelfor $> v4l2-ctl -d0 --stream-mmap --stream-out-mmap --stream-to x.raw [ 173.705701] coda 2040000.vpu: CODA PIC_RUN timeout JM -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
