[Libav-user] 971218 - MV errors in I frame

[Yurii Monakov]

If you are using UDP as a transport, perhaps some packets get dropped by OS
network stack.
Try to increase UDP socket receive buffer with setsockopt function (or with
ffmpeg options).
In case of Linux you should also increase net.core.rmem_max kernel
parameter.

вт, 12 мар. 2019 г. в 15:26, hamidi <hamidi at gmail.com>:

> No, these packets are encoded by Bosch NBC-265-P.
>
> On Sat, Mar 9, 2019 at 8:13 PM Carl Eugen Hoyos <ceffmpeg at gmail.com>
> wrote:
>
>> 2019-03-09 17:29 GMT+01:00, hamidi <hamidi at gmail.com>:
>> > Hi
>> > I get the following errors continually for each frame in my code:
>> >
>> > [h264 @ 0108c8c0] error while decoding MB 71 44, bytestream -27
>> > [h264 @ 0108c8c0] concealing 58 DC, 58 AC, 58 MV errors in I frame
>> > [h264 @ 0108c8c0] error while decoding MB 53 4, bytestream -9
>> > [h264 @ 0108c8c0] concealing 3276 DC, 3276 AC, 3276 MV errors in I frame
>> > [h264 @ 0108c8c0] error while decoding MB 18 4, bytestream -5
>> > [h264 @ 0108c8c0] concealing 3311 DC, 3311 AC, 3311 MV errors in I frame
>> > [h264 @ 0108c8c0] error while decoding MB 22 3, bytestream -6
>> > [h264 @ 0108c8c0] concealing 3387 DC, 3387 AC, 3387 MV errors in I frame
>> >
>> > Now about my code:
>> > I got frames from a Bosch camera in H264 and saved them in a file in a
>> > special format.
>>
>> Is this Divar DVR-5000 which prodces dxa files as in ticket #3986?
>>
>> Carl Eugen
>> _______________________________________________
>> Libav-user mailing list
>> Libav-user at ffmpeg.org
>> https://ffmpeg.org/mailman/listinfo/libav-user
>>
>> To unsubscribe, visit link above, or email
>> libav-user-request at ffmpeg.org with subject "unsubscribe".
>
> _______________________________________________
> Libav-user mailing list
> Libav-user at ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/libav-user
>
> To unsubscribe, visit link above, or email
> libav-user-request at ffmpeg.org with subject "unsubscribe".
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://ffmpeg.org/pipermail/libav-user/attachments/20190314/3b0a36f2/attachment.html>