[FFmpeg-user] Audio Packets, Video Packets, md5 output

[Paul B Mahol]

On 7/27/13, James Board <jpboard2 at yahoo.com> wrote:
>>> The video checksums makes sense (to me): there is one for each frame in
>
>>> (the AVI file stores each frame in full, so there's no inter-frame
>>> compression).
>>
>>This is not true.
>
> I think you mean it isn't true in general.  But for my example, where
> there's no
> inter-frame compression, it is true.  I counted the frames and I counted
> the
> checksums, and they are equal.
>
>>Most audio
>  codecs have a specific frame size (for specified settings): a
>>number of samples they encode at once. If the input file uses one such
>
> So if, for example, I wanted all of the audio samples that correspond to
> a specific frame, I might have to look at multiple audio packets, and then
> figure out which audio samples in each packet belong to which frame?

Something like that, note that there are containers (not AVI) that actually do
that.
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