Avidemux crashes on importing .flv files

[Richard Mace]

Binary package hint: avidemux

Running Ubuntu 10.04 and Avidemux (GTX+) 2.5.2,

crashes when importing .flv files downloaded from BBC iPlayer site.

Crash report:-

Crash

Assert failed :0
 at line 171, file /build/buildd/avidemux-2.5.2/avidemux/ADM_inputs/ADM_flv/ADM_flv.cppADM_backTrack
flvHeader::parseMetaData(unsigned int)
flvHeader::open(char const*)
ADM_Composer::addFile(char const*, unsigned char, fileType)
avidemux2_gtk() [0x809a16f]
FileSel_ReadWrite(void (*)(char const*), int, char const*, char const*)
avidemux2_gtk() [0x81ae352]
GUI_FileSelRead(char const*, void (*)(char const*))
HandleAction(Action)
guiCallback(_GtkMenuItem*, void*)
g_cclosure_marshal_VOID__VOID
g_closure_invoke

g_signal_emit_valist
g_signal_emit
gtk_widget_activate
gtk_menu_shell_activate_item

[Alessio Treglia (quadrispro)]

http://avidemux.org/admForum/viewtopic.php?id=7769

[Alessio Treglia (quadrispro)]

Could you provide a sample file to reproduce this?

[Richard Mace (richard-mace-btinternet)]

On Mon, 2010-05-10 at 12:10 +0000, Alessio Treglia wrote:
> Could you provide a sample file to reproduce this?
>
Unfortunately, I am unable to do this due to BBC's copyright. However,
any file (TV program) downloaded from the BBC's iPlayer website
will cause Avidemux to abend on attempting to import. Perhaps you
can find a way to download you own. I have used get_iplayer.

[mayleen (der-feindliche-spunk)]

I got the same here with flv files from ARD, ZDF and NDR.

[Jesusfreak (launchpad-bikelab)]

I would be able to provide a sample file, but with 580 MB its quite big. So I would like to know if this would still be useful.

[David Andersson (l-david-andersson)]

The same problem with flv videos downloaded from SVT. Avidemux 2.5.2 (1:2.5.2-0ubuntu3)

After remux with mencoder, avidemux can read the file for editing or transcoding. Tested with two videos from SVT and with pjw's 10 sec sample.

mencoder -mc 0 -oac copy -ovc copy -of lavf infile.flv -o outfile.flv

(The flv files from SVT have B-frames so avidemux must use safe mode which affects seek precision. The 10 sec sample does not have B-frames and don't need safe mode. A/V is out of sync in avidemux, but not in totem and mplayer.)

[David Andersson (l-david-andersson)]

(continuing comment #7, workarounds)

Alternatively remux with ffmpeg, with about the same result.

ffmpeg -i infile.flv -vcodec copy -acodec copy outfile.flv