[vlc-devel] rtp/h264 issue

Rémi Denis-Courmont remi at remlab.net
Thu Apr 22 11:29:43 CEST 2010

On Wed, 21 Apr 2010 21:18:55 +0400, "An L. Ber" <madrat at hotbox.ru> wrote:
> I've faced the issue with h264: When I transcode by VLC into h264 video
> and transmits by rtp the generated sdp file crashes many video players
> (and vlc client also).
> I work with x264-snapshot-20100414-2245/vlc-1.2-snapshot-20100415, but
> last snapshot of VLC (2010-04-21) also not ready for this issue.
> Behaviour: in SDP for H264 the parameter 'sprop-parameter-sets' used for
> storing special blocks and have illegal long form (about 600 bytes
> instead 64) and it crashes players.

What do you mean by "crash"? If they segfault, you've found a security
vulnerability. IMHO we should first fix _that_ before applying your patch,
otherwise reproducing the bug will become difficult.

Rémi Denis-Courmont

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