4GB limit, chunk download, what to use to demux and remux?

[Derek Moss]

On 3 August 2012 14:16, dinkypumpkin <dinkypumpkin at gmail.com> wrote:
> dinkypumpkin wrote:
>>
>> I've used Avidemux to concatenate the trimmed and re-muxed chunks.
>> mencoder worked as well, though I had to re-encode the audio. I tried
>> concatenating with ffmpeg and mp4box, but I couldn't get the right
>> incantations. The splices are a bit rough, but I'm not too bothered
>
>
> I was being a bit obtuse there.  It is possible to use ffmpeg with mp4box,
> but the only way I found to do it is to de-mux the elementary streams with
> mp4box, concatenate them with ffmpeg, then re-mux the concatenated streams
> with mp4box.  Avidemux was much easier.

Thanks for the suggestion. After trying about four programs that
wouldn't even open the flvs I'd download and were broken and couldn't
seek properly because of the 4GB bug, avidemux allowed me to chop the
recording and save a fixed mp4 which seeks normally, without
re-encoding.