No audio when playing video

[Christian]

Fairly new to Mezzmo in general but impressed so far.

I have a number of quick clips that were recorded by iPhones stored on my computer running Mezzmo. In attempting to view from other devices, there is video but no audio.

Running Mezzmo on windows based (win7).

[Paul]

Glad you like Mezzmo so far :). Let us know a few things & we'll be able to help:

What device(s)/app(s) are you streaming to?
What device profiles are assigned to these devices/apps in the Media Devices dialog in Mezzmo?
Right-click on one of the videos in Mezzmo (that is not playing audio on your devices) and click 'Get FFmpeg Information'. Post that information here.

[Christian]

I'm attempting to stream to two iPads. Using 8Player app. Mariia Smeshkova 8player is device profile

ffmpeg version N-66094-gbb8b752 Copyright (c) 2000-2014 the FFmpeg developers
built on Sep 4 2014 16:23:51 with gcc 4.8.2 (GCC)
configuration: --enable-memalign-hack --arch=x86_64 --target-os=mingw32 --cross-prefix=x86_64-w64-mingw32- --enable-static --disable-shared --enable-zlib --disable-postproc --prefix=/home/peter/ffmpeg/build/gpl64 --enable-libmp3lame --enable-libx264 --enable-gpl --extra-libs='-lx264 -lpthread' --enable-runtime-cpudetect --extra-cflags=-I/home/peter/cc32/include --extra-ldflags=-L/home/peter/cc64/lib --pkg-config=pkg-config --disable-w32threads --enable-libvpx --enable-libvorbis
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 1.100 / 56. 1.100
libavformat 56. 4.100 / 56. 4.100
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 0.103 / 5. 0.103
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Users\macdaddy\Pictures\2014-12-24\134.MOV':
Metadata:
major_brand : qt
minor_version : 0
compatible_brands: qt
creation_time : 2013-12-18 00:17:57
model : iPhone 4S
model-eng : iPhone 4S
encoder : 7.0.4
encoder-eng : 7.0.4
date : 2013-12-17T19:17:57-0500
date-eng : 2013-12-17T19:17:57-0500
location : +34.5012-082.6485+239.000/
location-eng : +34.5012-082.6485+239.000/
make : Apple
make-eng : Apple
Duration: 00:00:37.79, start: 0.000000, bitrate: 21150 kb/s
Stream #0:0(und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080, 21068 kb/s, 28.43 fps, 24 tbr, 600 tbn, 1200 tbc (default)
Metadata:
creation_time : 2013-12-18 00:17:57
handler_name : Core Media Data Handler
encoder : H.264
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 63 kb/s (default)
Metadata:
creation_time : 2013-12-18 00:17:57
handler_name : Core Media Data Handler
At least one output file must be specified

<MEZZMO>: Child process ended with code: 109, ExitCode=1


---> DB Level Info: 41, 66
---> Frame rate: 28.43
---> Aspect ratio:
---> Duration: 00:00:37

[Paul]

Try this: Right-click on the video in Mezzmo and click 'Properties'. On the Properties dialog, go to the Transcoding tab and delete any transcoded files listed there. Then click the "Use Original File' button on the Transcoding tab and select your 8player app as the device and click OK. Click OK to save these changes & close the Properties dialog. Now try to stream the video to your 8player app on your iPad. This time, Mezzmo will stream the original MOV file directly to your iPad, without any modification/transcoding. If it plays OK, then let us know and we'll tweak the Mariia Smeshkova 8player device profile.

[Christian]

Unfortunately, that did not work. I did try earlier in the week another media device setting that had iPad labeled which did but unfortunately when I kept that setting, I had difficulty playing other videos that I did not have trouble with before.

[Paul]

Understand. Go back to the Properties dialog (Transcoding tab) and delete the "Original File" entry you just added. Next, right-click on the video and click 'Pre-transcode Files'. On the Pre-transcode Files dialog, select your device/app and click 'Choose Formats'. On the Transcoding Formats dialog, select the bolded format and select the 'Force full transcode of all channels' checkbox. Click OK to save these settings and click OK again to start transcoding. Wait until transcoding has completed and then try to stream the video again. Let us know if that plays better.

[Christian]

I see file formats but none are bold. Click one or all?
Listed are
Matroska
Mov,MP4,m4a,3gp,3g2,mj2
Mpegts

[Paul]

Try MPEG-TS and see how you go.

[Christian]

I tried it and no luck. Went back and tried the other two as well and still did not work. I'm somewhat perplexed because I even went back and tried the setting that worked for me the other night that allowed me to watch this movie and other iPhone originated movies but it no longer works. That device setting was alpha systems media link player lite (iPad) .
I would have stuck it out with that setting but then I could not listen and watch the other movies under different format.

[Paul]

Understand. Create a set of logs and we'll see if we can see what's going wrong. Set the device profile back to "Mariia Smeshkova 8player" and turn on logging (see http://forum.conceiva.com/showthread.php/419-FAQ-How-to-turn-on-diagnostic-logging). Restart your Mezzmo server and try streaming a video now. When it fails to play properly, then stop your Mezzmo server and exit Mezzmo (Windows) app. Zip up all the logs and email them to us at support [at] conceiva [dot] com.

[Christian]

I have sent. Thanks for your help.

[Paul]

Thanks - got your logs. We analyse them shortly & report back via email.

[Christian]

That seemed to work for that video and other iPhone originated movies. But as before, when I go back and try to play MP4 movies (created on a camcorder per se), it will not show. I'm unable to get video or audio in that case; it does not load at all. Would you like me to send another log in that particular case as previous.

[Paul]

Yes - please email us a new set of logs when the MP4 movies don't play.