Re: Audio/video file playback in org mode

[Michael Brand <michael.ch.brand@gmail.com>]

Hi Paul

On Sat, Jun 11, 2011 at 06:48, Paul Sexton <psexton@xnet.co.nz> wrote:
> Thanks Michael, I'm glad you think it will be helpful. I have implemented
> something like what you have requested here. I have hived this code off into
> a separate file called org-player.el.
>
> You can get it at:
>
> http://bitbucket.org/eeeickythump/org-player/

Thank you very much for sharing. It worked out of the box to play an
Org link with time spec and I like it.

> I intend to add it to worg in the next little while.

That would be great. I first misread it to be added to Org core, but
maybe later after some more user feedback.

> Links can now contain times to start playback, as follows:
>
> [[file:/path/to/song.mp3::2:43]]      Starts playback at 2 min 43 sec.
> [[file:/path/to/song.mp3::1:10:45]]   Starts playback at 1 hr 10 min 45 sec.
> [[file:/path/to/song.mp3::3m15s]]     Starts playback at 3 min 15 sec.
> [[file:/path/to/song.mp3::49s]]       Starts playback at 0 min 49 sec.
> [[file:/path/to/song.mp3::1h21m10s]]  Starts playback at 1 hr 21 min 10 sec.
>
> As you see I have made XX:YY mean minutes and seconds, as it seems more
> logical to me for this particular purpose. If there is a compelling reason
> to interpret XX:YY as hours and minutes in these links then I am not totally
> opposed to changing it, but I think many people would find it confusing and
> counterintuitive.

Ok, in the context of a media file your arguments convinced me.

> In all cases playback continues until the end of the file. I couldn't find a
> way to implement playback of 'snippets' with a specified start and end time,
> unfortunately.

I'm sure this is only a question of time, I'll try to solve this too.

Michael

> On 10/06/2011 8:28 p.m., Michael Brand wrote:
>>
>> Hi Paul
>>
>> Thank you very much for sharing this, I will benefit a lot and the
>> interactivity from within Emacs seems extremely useful. My recent
>> searches for how to play an Org link to an audio file didn't find any
>> result and I was about to work out something with mpg123. I planned to
>> define a new link type for this but your solution with "file:" looks
>> to me more like it should be and is also backwards compatible with
>> links already made with "file:".
>>
>> And even better if "file:" could also cover my requirement to have an
>> optional link search part that lets the player start and stop at a
>> specified time. Let me define the format like this:
>> - start to play in file at 00:03:21, stop at 00:06:54:
>>   [[file:some_podcast.mp3::00:03:21-00:06:54]]
>> - start to play in file at 00:03:21, play until end of file:
>>   [[file:some_podcast.mp3::00:03:21]]
>> - play the whole file:
>>   [[file:some_podcast.mp3]]
>>
>> I would like to explicitly not allow [[file:some_podcast.mp3::03:21]]
>> as a shorter option with MM:SS because I would like to see XX:XX being
>> reserved for HH:MM without exception in Org. There was a recent
>> discussion covering this in the context of time calculation:
>> http://thread.gmane.org/gmane.emacs.orgmode/39487/focus=39840