[FFmpeg-trac] #411(avcodec:new): Insane cropping error

FFmpeg trac at avcodec.org
Mon Aug 22 03:19:11 CEST 2011

#411: Insane cropping error
 Reporter:  seaweed  |        Type:  defect
   Status:  new      |    Priority:  normal
Component:  avcodec  |     Version:  0.8.2
 Keywords:           |  Blocked By:
 Blocking:           |  Reproduced:  0
 Analyzed:  0        |
 Hi Im am trying to decode a 1080 P H264 video stream from a camera with
 VDPAU (NVIDIA driver version 260.19.04) / FFMPeg as the input demuxer/NALU
 parser. I am seeing the message below while decoding. The camera sends out
 slightly larger height frames than 1080 (1084). And I repeatedly get these
 messages about every second:

 Last message repeated 1 times
 [h264_vdpau @ 0x7f210c46df30]insane cropping not completely supported,
 this could look slightly wrong ...
 [h264_vdpau @ 0x7f210c46df30]no frame!

 I believe this happens during SPS/PPS parsing.
 I captured some raw H.264 bitstream in a file and uploaded at
 http://www.datafilehost.com/download-f537c855.html. Its interesting that
 when this video stream is wrapped within RTMP packets and submitted to
 flash, flash player plays it fine - with no extra 4 bytes at the top and
 no signs of hiccups. The parser seems to cause latency issues when this
 happens (stuck for couple of seconds).

Ticket URL: <http://avcodec.org/trac/ffmpeg/ticket/411>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker

More information about the FFmpeg-trac mailing list