On 12/19/2016 07:39 PM, Jerry Geis wrote:
I can create an audio call file and specify Application: Playback and Data: a
path to the audio file, it calls the phone and plays the audio message just
fine.
I am trying to do the same with a video file. I specify Application: Playback
and Data: the path to the video file (no ending of course), and I do specify
also the Codecs: h264,h263 etc...
Asterisk reports:
*File /tmp/video does not exist in any format
*>* Unable to open /tmp/video (format ulaw|h263|h264)*
Looking then at the code and attaching with the debugger.
the ast_openstream_full() function has this condition:
if (!fileexists_core(filename, NULL, preflang, buf, buflen,
file_fmt_cap) || !ast_format_cap_has_type(file_fmt_cap, AST_MEDIA_TYPE_AUDIO)) {
}
So fileexists_core() returns 1 but the next call to ast_format_cap_has_type()
fails. because its looking for AST_MEDIA_TYPE_AUDIO and the file is a video
file. Nowhere is the an AST_MEDIA_TYPE_VIDEO.
I can use the call file to setup a video call between two video softphones just
fine. However using the call file to call a phone and play a video is not
working at all for me.
Am I on the right track?
Is this supposed to work? if so how since there is no check of the
AST_MEDIA_TYPE_VIDEO?
Thanks,
Jerry
Hi Jerry,
I just had a look through the code, and from what I can tell, what
you're trying to do is not supposed to work, exactly. It appears that
what Asterisk expects is to be given a filename, such as "myplayback".
Asterisk will first search for an audio version of the file (like
myplayback.gsm or myplayback.opus), and open that as an audio stream. If
that succeeds, it then will also see if there is an accompanying video
stream (such as myplayback.h264). If it then finds that video, then the
result will be that Asterisk will play the audio from the audio file and
the video from the video file.
What this means is that Asterisk does not properly handle:
* Files that have audio and video streams contained within
* Video files without accompanying audio
This is one of those times where Asterisk's handling of video is not
user-friendly and in general ass-backwards and terrible. If you have a
tool that can extract the audio to its own file, then you would be able
to run your scenario, presumably.
It would be a welcome addition for Asterisk to be able to open a single
file containing video and accompanying audio and be able to play those back.
Mark Michelson
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