[PlanetCCRMA] Compiling and running gst123-0.1.2 on Fedora

Tue Jul 6 15:21:11 PDT 2010

That´s nice Niels. I know that sox can play with "play" command.
I didn't try hard, but do you know how to check sound files in Emacs
with dired style, like a normal file manneger that you can playu the
files?

2010/7/6 Niels Mayer <nielsmayer at gmail.com>:
> FYI: http://space.twc.de/~stefan/gst123.php is a nice command-line
> audio/video file-playing utility that should be part of Fedora or
> PlanetCCRMA. It uses the gstreamer interface so it provides
> better-integrated access to your audio devices or servers. Below are
> some simple tips on compiling on fedora.
>
> ---------- Forwarded message ----------
> From: Niels Mayer <nielsmayer at gmail.com>
> Date: Tue, Jul 6, 2010 at 2:43 PM
> Subject: Re: [LAA] gst123-0.1.2
> To: Stefan Westerfeld <stefan at space.twc.de>
> Cc: Linux Audio Developers <linux-audio-dev at lists.linuxaudio.org>
>
>
> On Mon, Jul 5, 2010 at 9:11 AM, Stefan Westerfeld <stefan at space.twc.de> wrote:
>> gst123-0.1.2 has been released.
>> Website:  http://space.twc.de/~stefan/gst123.php
>> Download: http://space.twc.de/~stefan/gst123/gst123-0.1.2.tar.bz2
>
> Stefan -- very nice and useful program. Thanks for making this available!
>
> FYI -- To compile on Fedora, I had to install the following to get
> 'configure' to stop complaining:
>
> 1) yum install 'gstreamer-devel' (obviously)
> 2) yum install gstreamer-plugins-base-devel (less obvious as config complains:
>    No package 'gstreamer-interfaces-0.10' found // No package
> 'gstreamer-video-0.10' found )
> 3) yum install ncurses-devel
>
> The application compiles and works nicely after that.
>
> However, I have some questions/issues/bugs:
>
> (1) I do not have pulseaudio running, and all gstreamer apps have a
> pause as they attempt to contact pulseaudio, and then emit a message:
> "socket(): Address family not supported by protocol" ... in a GUI app,
> this might make less of a difference, since you don't end up having
> the app respond to ^C signals. However, gst123 does -- and during the
> period when gstreamer is contacting the pulseaudio socket, the
> application becomes temporarily unresponsive, even to signals like ^C.
>  By the time it starts responding again it's already loaded the next
> file and gone unresponsive again due to timing out on the nonexistent
> pulseaudio socket. This makes the program very hard to interrupt.
>
>  Question: is there a way to disable checking for pulseaudio for each
> new file when specifying multiple media files. e.g.: "gst123 *.ogg" ?
> For example: do it once at application startup, or even better, a way
> to prevent it from happening all-together via environment variable,
> configuration, etc. Best would be some kind of environmental check so
> that the timeout on socket needn't occur.The timeout significantly
> slows down operation of the program even when not issuing ^C's.
>
> (2) For HD Video recorded off digital broadcasts, but not for regular
> def broadcast video, there's a problem when issuing the '->' (forward
> arrow) or '<-' (backward  arrow) commands to skip forwards or back: As
> you go forward, there's an increasingly longer delay before the audio
> syncs up and starts playing. Hit '->' a few times and the audio never
> seems to sync up, and sometimes the video stays paused on the same
> frame, even though the time display in the terminal continues
> updating.
>
> Note that the files producing these errors have some oddball results
> output from "ffmpeg -i" but that's how mythtv's mpg files look, for HD
> broadcasts:
>
> ...............
> [mpeg2video @ 0x1c2fcd0]mpeg_decode_postinit() failure
>    Last message repeated 7 times
> [mpegts @ 0x1c2b5f0]MAX_READ_SIZE:5000000 reached
> Input #0, mpegts, from '/home/npm/Videos/1551_20100407195900.mpg':
>  Duration: 02:06:59.36, start: 55515.108733, bitrate: 10490 kb/s
>  Program 1
>    Stream #0.0[0x7c0]: Video: mpeg2video, yuv420p, 1280x720 [PAR 1:1
> DAR 16:9], 38810 kb/s, 62.39 fps, 59.94 tbr, 90k tbn, 119.88 tbc
>    Stream #0.1[0x7c1]: Audio: ac3, 48000 Hz, stereo, s16, 192 kb/s
>    Stream #0.2[0x7c2]: Audio: ac3, 48000 Hz, stereo, s16, 192 kb/s
> At least one output file must be specified
> ................
>
> (3) Note that if the above file is played out of a list 'gst123 *.mpg'
> then at least it gets audio playback. The same file, started
> standalone, shows video, but gives plays no audio:
> .............
> gnulem-346-~> gst123 /home/npm/Videos/1551_20100407195900.mpg
>
> Playing file:///home/npm/Videos/1551_20100407195900.mpg
>
> ** (gst123:12323): CRITICAL **: gst_mpeg_descriptor_find: assertion
> `desc != NULL' failed
>
> ** (gst123:12323): CRITICAL **: gst_mpeg_descriptor_find: assertion
> `desc != NULL' failed
> No accelerated IMDCT transform found
>
> ** (gst123:12323): CRITICAL **: gst_mpeg_descriptor_find: assertion
> `desc != NULL' failed
>
> ** (gst123:12323): CRITICAL **: gst_mpeg_descriptor_find: assertion
> `desc != NULL' failed
> No accelerated IMDCT transform found
> socket(): Address family not supported by protocol
>
> Codec   : Dolby Digital (AC-3) (audio)                    Bitrate : 192.0 kbit/s
> ............................
>
> Niels
> http://nielsmayer.com
>
> PS: Feature request: decode caption information from videos, and
> display in video. And/or output a timed-text, SMIL or other file
> containing the caption information and time-of-presentation
> information. This can be very useful in searching content of video
> files.
>
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