View Full Version : How do I transcode this file

08-29-2012, 12:45 AM

When playing this [.mkv] file it starts off fine then loses audio synch.
FFmpeg Info:
ffmpeg version N-40693-gc457a29 Copyright (c) 2000-2012 the FFmpeg developers
built on May 15 2012 12:57:14 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=/home/peter/ffmpeg/build/gpl --enable-libmp3lame --enable-libx264 --enable-gpl --extra-libs='-lx264 -lpthread' --enable-runtime-cpudetect --extra-cflags=-I/home/peter/cc/include --extra-ldflags=-L/home/peter/cc/lib --pkg-config=pkg-config --disable-w32threads
libavutil 51. 51.100 / 51. 51.100
libavcodec 54. 21.101 / 54. 21.101
libavformat 54. 5.100 / 54. 5.100
libavdevice 53. 4.100 / 53. 4.100
libavfilter 2. 73.100 / 2. 73.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 11.100 / 0. 11.100
Input #0, matroska,webm, from 'F:\B_DownloadedTorrents\True Blood Season 4 Complete 720p\True.Blood.S04E01.720p.HDTV.x264.mkv':
creation_time : 2011-06-26 09:30:46
Duration: 00:58:48.19, start: 0.000000, bitrate: 4909 kb/s
Stream #0:0(eng): Video: h264 (High), yuv420p, 1280x720, SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc
Stream #0:1: Audio: ac3, 48000 Hz, stereo, s16, 384 kb/s (default)
At least one output file must be specified

---> DB Level Info: 41, 100
---> Frame rate: 23.98
---> Aspect ratio: 16:9

This is being played through SamsungB-[DLNA]Smansung LN52B750, and SONY-STR-Sony DA4600ES. Connections are hard wired from the computer to the components through a Zyxel 8 port switch.
The computer is running Windows 7 Pro -w- i7-2600K CPU with 16GB of DDR3 RAM@1333Mhz
I have tried transcoding the file using
1. mpgets -> h264 video; ac3 audio fur just the SamsungB component
2. mpeg (PAL) -> mpeg2 video ac3 audio for both the SamsunB and Sony STR components

Also I just thought I'd mention that VLC 2.0.2 also has problems playing this file on my computer.



08-29-2012, 01:29 PM
Hi Joe,

Please try this: In Mezzmo, go to the Transcoding Settings dialog and turn off transcoding. Restart your Mezzmo server and try to stream the MKV file. Does it play OK? If not, then turn transcoding back on and turn on logging (see http://forum.conceiva.com/showthread.php/419-FAQ-How-to-turn-on-diagnostic-logging). Right-click on the MKV file in Mezzmo and click Properties. Go to the Transcoding tab and delete all transcoded files for this MKV file. Restart your Mezzmo server and try streaming the file again to your TV. When it starts to lose audio sync, stop your Mezzmo server and exit Mezzmo. Zip up all the logs and send them to us at support [at] conceiva [dot] com.