[FFmpeg-devel] invalid timestamps in FLV -> invalid argument

Michael Niedermayer michaelni at gmx.at
Sat Feb 18 03:42:05 CET 2012

On Fri, Feb 17, 2012 at 05:48:07PM -0700, Mike Brown wrote:
> Greetings. Not sure if this is the best place to ask, but a recent (Feb. 15) 
> build of ffmpeg is giving me grief about timestamps in a .flv file I'm trying 
> to read via the CLI.
> An example command is:
> ffmpeg.exe -i "2011 hearing.flv" -ss 1178 -t 550 -c:v copy -c:a copy out.flv
> As it reads the file, I get a gajillion messages like this:
> DTS 1169265, next:1178010980 st:1 invalid droping
> (that's the very last one)...and then I get:
> [flv @ 0000000001C78C80] pts < dts in stream 1 
> av_interleaved_write_frame(): Invalid argument
> The output file is 0 bytes.
> The input file plays fine in VLC, but I can't do anything with it in ffmpeg 
> because of this error. It seems to be related to a ffmpeg.c patch from Feb. 7.

If the issue is a regression please find out which change exactly
caused it. (see git bisect)

> I am wondering if the timestamps are actually being parsed correctly, and/or 
> if there's a way to get around this.
> Console output here (edited to remove the middle of the long list of frames): 
> http://pastebin.com/kVdcPpes
> Let me know if more info is needed. The file is 421 MB, so I can't easily post 
> it in full somewhere. If you want to capture it yourself, I can send you the 
> URL (it's public domain content, don't worry), but it streams in real time for 
> about 3 hours, so it'll be a nice long wait.

please send the url

> (Also, maybe do a code sweep for "droped" and "droping" ... correct spelling 
> is "dropped" and "dropping". Instead of "invalid droping", I would write 
> "invalid; dropping")

patch welcome!

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

The bravest are surely those who have the clearest vision
of what is before them, glory and danger alike, and yet
notwithstanding go out to meet it. -- Thucydides
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