Ubuntu

libav fails to decode H.264 stream

Reported by Sergei Ianovich on 2011-12-17
6
This bug affects 1 person
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libav
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libav (Ubuntu)
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Bug Description

Any of oneiric libavcodec53, libavcodec-extra-53 or libav's git HEAD from [1] fails on the attached stream. A gray rectangle is displayed.

Both HEADs of release/0.7 and release/0.9 from ffmpeg [2] produce correct frame sequence.

1. git://git.libav.org/libav.git
2. git://git.videolan.org/ffmpeg.git

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: libavcodec53 (not installed)
ProcVersionSignature: Ubuntu 3.0.0-15.24-generic 3.0.13
Uname: Linux 3.0.0-15-generic x86_64
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Sun Dec 18 02:43:18 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110426)
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: libav
UpgradeStatus: No upgrade log present (probably fresh install)

Sergei Ianovich (ynvich-gmail) wrote :
Reinhard Tartler (siretart) wrote :

Cannot reproduce the grey rectangle, instead I see this

test.h264: Invalid data found when processing input

Looks like corrupt data to me, but feel free to submit this bug upstream:
http://bugzilla.libav.org/

Sergei Ianovich (ynvich-gmail) wrote :

Format isn't detected. That's a separate bug.

This command helps ffplay get the idea:

$ ffplay -f h264 test.h264

On Sa, Dez 17, 2011 at 19:58:52 (CET), Sergey Yanovich wrote:

> Format isn't detected. That's a separate bug.
>
> This command helps ffplay get the idea:
>
> $ ffplay -f h264 test.h264

Indeed, this way I can confirm the issue. Can you please file this bug
upstream?

--
Gruesse/greetings,
Reinhard Tartler, KeyID 945348A4

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