[Libav-user] [External] Questions about decoding broken streams

[Vasiliy Volkov]

Well there is no anything unusual in our code. We're simply use this API:
https://ffmpeg.org/doxygen/4.0/group__lavc__encdec.html

avcodec_send_packet
avcodec_receive_frame

And for context we setup:
context->err_recognition = AV_EF_EXPLODE | AV_EF_BITSTREAM | AV_EF_BUFFER |
AV_EF_CAREFUL | AV_EF_COMPLIANT | AV_EF_AGGRESSIVE;


ср, 3 окт. 2018 г. в 12:58, Niraj Gandha <niraj.gandha at einfochips.com>:

> Hi Vasiliy,
>
> Can you share the code in which you are decoding the stream?
>
> Thanks,
> Niraj Gandha
>
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> ------------------------------
> *From:* Libav-user <libav-user-bounces at ffmpeg.org> on behalf of Vasiliy
> Volkov <volk.vasiliy at gmail.com>
> *Sent:* Wednesday, October 3, 2018 3:08:08 PM
> *To:* libav-user at ffmpeg.org
> *Subject:* [External] [Libav-user] Questions about decoding broken streams
>
> CAUTION: This email originated from outside of the organization. Do not
> click links or open attachments unless you recognize the sender and know
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>
> Hi,
>
> I'm trying to deal with broken streams with libav. Sometimes streams can
> be broken due to nature of incoming network channel (UDP multicast) but i'd
> like to "fix them" as much as possible. I'm trying to fill broken frames
> with last good decoded frame. There are situations when I can do such thing
> and everything is ok but most of time it's not helping: libav tries to
> decode broken stream and add some green frames (h264 decoding) which really
> catch your eyes when you watch this stream after encoding.
> Is it possible to change this color to black for example? Can libav while
> decoding set some flags to frames and mark them as broken or "green"?
> It will be helpful because next I'll can replace such frames with
> correctly decoded which fix it.
>
> Thanks
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