New submission from Mitar <[email protected]>: MJPEG frames from Logitech HD Pro Webcam C910 are not being decoded properly. User gets such errors:
[mjpeg @ 0x1be57d0]mjpeg_decode_dc: bad vlc: 0:0 (0x1be5e40) [mjpeg @ 0x1be57d0]error dc [mjpeg @ 0x1be57d0]error y=8 x=28 It has been reported on mailing list: http://permalink.gmane.org/gmane.comp.video.ffmpeg.user/28615 And I have also confirmed it: http://comments.gmane.org/gmane.comp.video.ffmpeg.user/28776 I am attaching example file from original post. I have tried this patch: http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/attachments/20100330/0efae5e1/attachment.obj And now I get such errors: [mjpeg @ 0x1bd47d0]unexpected marker found where restart marker expected 0 vs 214 [mjpeg @ 0x1bd47d0]unexpected marker found where restart marker expected 0 vs 214 [mjpeg @ 0x1bd47d0]unexpected marker found where restart marker expected 18 vs 214 But the image is decoded visually properly (while before only small top portion of the image is decoded properly). Hm, it seems to me that with this patch problems are only with specific frame sizes. For example 2592x1944 works without problems. But 1600x1200 gets some unexpected marker errors. But still decodes. File 'Image.jpg' not attached - you can download it from https://roundup.ffmpeg.org/file1145. ---------- files: Image.jpg messages: 12372 nosy: mitar priority: normal status: new substatus: new title: Unable to decode MJPEG frames from Logitech HD Pro Webcam C910 topic: avcodec type: bug ________________________________________________ FFmpeg issue tracker <[email protected]> <https://roundup.ffmpeg.org/issue2325> ________________________________________________
