Transcoding Resources

Hi all, im using mezzmo on my pc streaming over a wired network (100mbit) to my 3dtv, which is working fine as far as the tv as dlna is concerned.
the issue i have is when mezzmo needs to transcode it cant seem to do it quick enough.

im running a i7-930 with 16 gigs of ram running of a ocz SSD, so would have thought that the power required to transcode on the fly is there.

when i try to play a movie being transcoded i get the jittery,pausing problems and if i look at the transcoding status of mezzmo its sits around 20fps drops to as low as 10 (too slow error) im wondering what i can do if anything to smooth this out at all.

im currently pre transcoding a movie and i suspect this will play fine, but will let you know shortly when it is finished.

any help would be appreciated.

Your computer spec and home network are fine. My guess is that ffmpeg.exe is just slow transcoding some of your files. Mezzmo uses ffmpeg.exe for transcoding video and music files and it can be quite slow to convert certain formats (whereas of other formats it is very fast). That could be the reason. Can you post the FFmpeg information on one of the (slow to transcode) files? Right-click on the file in Mezzmo and click 'Get FFmpeg Information'.

We will be releasing a minor update in the next 1-2 weeks and that will contain the latest build of ffmpeg. This new build may help as the ffmpeg developers can often fix certain bottlenecks.

ill post the info when i get a chance.

the video is a mkv container x264.

i should say that the pre transcoded file works fine.

the display is Panasonic TH-P58VT20A Aug 2010 Build date.

Code:

ffmpeg version N-36036-ga40f43d, Copyright (c) 2000-2011 the FFmpeg developers built on Dec 22 2011 13:44:49 with gcc 4.6.2 configuration: --enable-memalign-hack --arch=x86 --target-os=mingw32 --cross-prefix=i686-w64-mingw32- --enable-static --disable-shared --enable-zlib --disable-postproc --prefix=/media/ffmpeg --enable-libmp3lame --enable-libx264 --enable-gpl --extra-libs='-lx264 -lpthread' --enable-runtime-cpudetect --extra-cflags=-I/home/dennis/cc/include --extra-ldflags=-L/home/dennis/cc/lib --pkg-config=pkg-config --disable-w32threads libavutil 51. 32. 0 / 51. 32. 0 libavcodec 53. 46. 1 / 53. 46. 1 libavformat 53. 27. 0 / 53. 27. 0 libavdevice 53. 4. 0 / 53. 4. 0 libavfilter 2. 53. 0 / 2. 53. 0 libswscale 2. 1. 0 / 2. 1. 0 Input #0, matroska,webm, from 'H:\Unrared\Johnny.English.Reborn.2011.1080p.BluRay.DTS.x264-HDMaNiAcS\Johnny.English.Reborn.2011.1080p.BluRay.DTS.x264-HDMaNiAcS.mkv': Duration: 01:41:21.70, start: 0.000000, bitrate: 14006 kb/s Chapter #0.0: start 0.000000, end 339.464000 Metadata: title : 00:00:00.000 Chapter #0.1: start 339.464000, end 546.921000 Metadata: title : 00:05:39.464 Chapter #0.2: start 546.921000, end 780.363000 Metadata: title : 00:09:06.921 Chapter #0.3: start 780.363000, end 928.553000 Metadata: title : 00:13:00.363 Chapter #0.4: start 928.553000, end 1124.790000 Metadata: title : 00:15:28.553 Chapter #0.5: start 1124.790000, end 1535.784000 Metadata: title : 00:18:44.790 Chapter #0.6: start 1535.784000, end 1989.946000 Metadata: title : 00:25:35.784 Chapter #0.7: start 1989.946000, end 2255.420000 Metadata: title : 00:33:09.946 Chapter #0.8: start 2255.420000, end 2792.415000 Metadata: title : 00:37:35.420 Chapter #0.9: start 2792.415000, end 2949.113000 Metadata: title : 00:46:32.415 Chapter #0.10: start 2949.113000, end 3358.313000 Metadata: title : 00:49:09.113 Chapter #0.11: start 3358.313000, end 3682.554000 Metadata: title : 00:55:58.313 Chapter #0.12: start 3682.554000, end 3900.772000 Metadata: title : 01:01:22.554 Chapter #0.13: start 3900.772000, end 4307.762000 Metadata: title : 01:05:00.772 Chapter #0.14: start 4307.762000, end 4524.311000 Metadata: title : 01:11:47.762 Chapter #0.15: start 4524.311000, end 4828.365000 Metadata: title : 01:15:24.311 Chapter #0.16: start 4828.365000, end 5298.376000 Metadata: title : 01:20:28.365 Chapter #0.17: start 5298.376000, end 5582.535000 Metadata: title : 01:28:18.376 Chapter #0.18: start 5582.535000, end 5707.201000 Metadata: title : 01:33:02.535 Chapter #0.19: start 5707.201000, end 6081.707000 Metadata: title : 01:35:07.201 Stream #0:0(eng): Video: h264 (High), yuv420p, 1920x800 [SAR 1:1 DAR 12:5], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default) Metadata: title : Johnny.English.Reborn.2011.1080p.BluRay.DTS.x264-HDMaNiAcS Stream #0:1(eng): Audio: dts (DTS), 48000 Hz, 5.1(side), s16, 1536 kb/s (default) Stream #0:2(eng): Subtitle: text (default) Stream #0:3(bul): Subtitle: text Stream #0:4(gre): Subtitle: text Stream #0:5(swe): Subtitle: text Stream #0:6(por): Subtitle: text Stream #0:7(ger): Subtitle: text Stream #0:8(fin): Subtitle: text Stream #0:9(dut): Subtitle: text Stream #0:10(spa): Subtitle: text At least one output file must be specified ---> DB Level Info: 41, 100 ---> Frame rate: 23.98 ---> Aspect ratio: 12:5

Quote:

Originally Posted by wierd

i should say that the pre transcoded file works fine.

OK - that's great that you can watch the video without stuttering via Mezzmo pre-transcoding features. I suggest we wait for the new Mezzmo update to see if that improves your transcoding speed. If not, then we'll look into it further for you.

got it going, the profile it detected (panasonic viera 2011) must not support the HD Video formats, i switched it to the Panasonic Viera profile im asuming a generic one and it now transcodes at 400 odd fps :P gigidy!

The 'Panasonic Viera' device profile may be a better match for your TV model - so that's great you are up and running now :D

since the update to 2.6.2.0 im back down to 20 fps, do you have the old profiles still or am i doing something wrong?

Please try this: Stop your Mezzmo server. Go to Media Devices dialog in Mezzmo and delete all devices listed. Start you Mezzmo server again and you should see your TV get added back into the Media Devices dialog again. Make sure it is using the Panasonic Viera device profile as before. Try streaming a few files and see how you go now.