Unknown encoder 'libmp3lame'

Hi,

I 'm new here, and new as well to NAS, not to speak of Linux/Unix. Yet, guided by the TheSwede86's excellent procedure here, I managed to install Serviio 1.4.1.2 on my Zyxel NSA325-v2, firmware V4.71(AALS.0), and FFP version 0.7/arm. It runs like a charm, and I greatly appreciate the way Serviio handles access rights and controls distribution. I have turned off entirely the built-in Twonky server and changed all those public shares into private ones.

Just one thing is disturbing. Something seems to go wrong with ffmpeg/lame handling (presumably libmp3lame) in transcoding to flv for the Mediabrowser, in this case running on my PC (Windows 7 x64, Firefox 34.0.5, Adobe Flash Player 15.0.0.239). When I try to play a movie (mkv), it will not start, and the serviio.log will show something like this:

  Code:

    2014-12-09 10:43:48,144 WARN  [ServiioStatusService] IOException occured. Returning error code 500 to the REST layer. Message: Transcoded file '/ffp/tmp/Serviio/transcoding-temp-5885-flv_player-ORIGINAL.stf' cannot be found, FFmpeg execution probably failed
    2014-12-09 10:43:48,656 WARN  [ProcessExecutor] Process ffmpeg has a return code of 1! This is a possible error. Detailed output follows.
    Metadata:
    title           : 01:37:00.760
    Stream #0:0(eng): Video: h264, yuv420p, 1920x808 [SAR 1:1 DAR 240:101], 25 fps, 25 tbr, 1k tbn, 50 tbc (default)
    Stream #0:1(ger): Audio: dts, 48000 Hz, 5.1(side), fltp, 1536 kb/s (default)
    Unknown encoder 'libmp3lame'


I'm using ffmpeg-1.2.1-arm-1.txz and lame-3.99.5-arm-1.txz. On start-up, the log for ffmpeg shows:

  Code:

    2014-12-10 07:01:44,533 INFO  [FFMPEGWrapper] Found FFmpeg: ffmpeg version 1.2.1 Copyright (c) 2000-2013 the FFmpeg developers
    2014-12-10 07:01:44,534 WARN  [FFMPEGWrapper] FFmpeg is not compiled with librtmp support, RTMP streaming will not work.
    2014-12-10 07:01:44,534 WARN  [FFMPEGWrapper] FFmpeg is not compiled with libass support, rendering subtitles (hardsubs) will not work.


On the command line, I get:

  Code:

:~# ffmpeg -version

    ffmpeg version 1.2.1
    built on Jun 24 2013 07:49:34 with gcc 4.5.4 (GCC) 20111110 (prerelease)
    configuration: --prefix=/ffp --disable-static --enable-shared --enable-gpl --enable-version3 --enable-nonfree --enable-small --disable-encoder=aac --disable-decoder=aac --disable-armv6 --disable-armv6t2 --disable-amd3dnow --disable-amd3dnowext --disable-mmx --disable-mmxext --disable-sse --disable-sse2 --disable-sse3 --disable-ssse3 --disable-sse4 --disable-sse42 --disable-vfp --disable-mips32r2 --disable-mipsdspr1 --disable-mipsdspr2 --disable-mipsfpu --enable-zlib --enable-postproc --enable-swscale
    libavutil      52. 18.100 / 52. 18.100
    libavcodec     54. 92.100 / 54. 92.100
    libavformat    54. 63.104 / 54. 63.104
    libavdevice    54.  3.103 / 54.  3.103
    libavfilter     3. 42.103 /  3. 42.103
    libswscale      2.  2.100 /  2.  2.100
    libswresample   0. 17.102 /  0. 17.102
    libpostproc    52.  2.100 / 52.  2.100

:~# lame -?

    LAME 32bits version 3.99.5 (http://lame.sf.net)
    ...


I tried ffmpeg-2.1.3_git20140213-arm-0, but it refused to load, also complaining about a missing 'libmp3lame'. – Not that playing video in the Mediabrowser is directly vital for me. But I had a similar failure when trying to stream a video with DTS audio to an older LG TV (declared as Panasonic Viera (2010)) that by itself can only play AC3. I can't find the error output anymore. But I remember this worked with the same Serviio version that I had installed on my PC before.

As these are the only two cases involving actual transcoding I've tested, I suspect there's something wrong with the ffmpeg / lame libraries. Anyone got an idea? (Probably the NAS would be too slow anyway, but maybe not.)

Solved. I tried ffmpeg-2.1.3_git20140213-arm-0 once more, this time also installing twolame. No more warnings even, the serviio.log shows:

[FFMPEGWrapper] Found FFmpeg: ffmpeg version 2.1.3-compiled_by_barmalej2_for_Serviio1.4_and_MiniDLNA1.1.1 Copyright (c) 2000-2014 the FFmpeg developers

Video in MediaBrowser now works all right, but the NAS is way too slow. For my old LG TV, using the Panasonic Viera (2010) profile, Serviio / FFmpeg take about a minute for about a second of actual play time, as both video and audio seem to be transcoded. I'll see if I can find/make a profile that will leave the H264 video untouched and only transcode the audio from DTS to AC3. If this won't do it, well, I guess a new TV should be cheaper than a faster NAS.

[NX3]

Why not use a LG profile? Or find out what your LG does play native then make a profile?

Far cheaper than a new nas or tv....or even a cheap media player would do the job

Oh yeah, thanks. Looked into profiles.xml and found that the transcoding section for LG TV was commented out. Now it works, NAS at 100% cpu usage, but fine. Set my other, newer LG TV to Generic, so Serviio does not transcode DTS, which this LG model can play by itself.