Requests For Features

Budgie ajebay at
Tue Jul 21 10:47:43 PDT 2015

On 21/07/15 17:49, Vangelis forthnet wrote:
> On Tue Jul 21 16:28:36 BST 2015, Budgie wrote:
>> the end product is .flv
> Hello Alastair :-)
> By default, anything downloaded by rtmpdump ends up inside the Adobe FLV
> container, with ".flv" as file extension!
>> gfv reports sampletype mp4a
> Again, this is reported by rtmpdump ("INFO: sampletype mp4a", you should
> also see: "INFO: audiocodecid mp4a") and this info refers to the
> elementary audio stream inside the FLV container.
>> How do/can I  I run it through ffmpeg to get .m4a files?
> ".m4a" is the file extension of MP4 files containing only an audio
> stream inside the MP4 container; is that what you really want to do
> (i.e. extract only the audio from the FLV file and put in within the MP4
> container)? My guess is that you'd rather LOSSLESSLY REMUX the FLV file
> to an MP4 file, keeping both video+audio streams...
> Use ffmpeg to perform the remux:
> ffmpeg -i foo.flv -c copy -bsf:a aac_adtstoasc foo.mp4
>> On the subject of ffmpeg, will this insert time stamps when
>> transcoding and how does one set the interval?
> Pardon me, but I do not quite understand what you're saying here - my
> command above does a lossless remux without transcoding - TRANSCODING is
> not what you'd want because it is a source (and time) demanding
> procedure - resort to transcoding in the event your hardware media
> player does not support the H.264 AVC video codec (very unlikely...)
> Regards from boiling hot Greece (30C inside, 38C outside...)
> Vangelis.
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Hi Vangelis,
Just showing my ignorance and you have guessed my intentions correctly. 
  It is the MP4 container I was looking for.  It now seems, however, 
that I don't need it as the file plays fine on the renderer I am using.

The business about the time stamp reference is because I have a number 
of radio gip downloads that were messed up due to an error with my set 
up a couple of years back.  As a result these play from start to finish 
but I cannot fast forward to any point mid programme.  Since they are 2 
hours long this makes life difficult as I seldom have an uninterrupted 2 
hours!  My understanding is that time markers are missing but have no 
idea if this is correct analysis or if it can be rectified. If you have 
any suggestions they would be appreciated.

Many thanks for your reply.
Regards from wet and cool Scotland.

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