Hi, I have tried the newest F profile for Samsung and identified these two issues:

1. Thumbnail size is set to 160px. This device is capable to display 320px size thumbnails. I've tried it and it works.
2. Some of the movies are set to transcoding even the client is able to play them directly. For example, with profile C it works correctly. I have found 2 such files in my library so far.

ffmpeg info for those file is:

First:

ffmpeg version N-50460-g393dcbf Copyright (c) 2000-2013 the FFmpeg developers
built on Mar 4 2013 17:38:17 with gcc 4.6.2 (GCC)
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 --enable-zlib
libavutil 52. 17.103 / 52. 17.103
libavcodec 54. 92.100 / 54. 92.100
libavformat 54. 63.102 / 54. 63.102
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 41.100 / 3. 41.100
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
Input #0, matroska,webm, from 'X.mkv':
Metadata:
creation_time : 2012-04-25 22:22:42
Duration: 02:06:20.99, start: 0.000000, bitrate: 15644 kb/s
Chapter #0.0: start 0.000000, end 575.533000
Metadata:
title : 00:00:00.000
Chapter #0.1: start 575.533000, end 1040.665000
Metadata:
title : 00:09:35.533
Chapter #0.2: start 1040.665000, end 1412.911000
Metadata:
title : 00:17:20.665
Chapter #0.3: start 1412.911000, end 1834.541000
Metadata:
title : 00:23:32.911
Chapter #0.4: start 1834.541000, end 2306.262000
Metadata:
title : 00:30:34.541
Chapter #0.5: start 2306.262000, end 2856.270000
Metadata:
title : 00:38:26.262
Chapter #0.6: start 2856.270000, end 3337.543000
Metadata:
title : 00:47:36.270
Chapter #0.7: start 3337.543000, end 3823.695000
Metadata:
title : 00:55:37.543
Chapter #0.8: start 3823.695000, end 4366.862000
Metadata:
title : 01:03:43.695
Chapter #0.9: start 4366.862000, end 4799.169000
Metadata:
title : 01:12:46.862
Chapter #0.10: start 4799.169000, end 5230.100000
Metadata:
title : 01:19:59.169
Chapter #0.11: start 5230.100000, end 5583.495000
Metadata:
title : 01:27:10.100
Chapter #0.12: start 5583.495000, end 6161.280000
Metadata:
title : 01:33:03.495
Chapter #0.13: start 6161.280000, end 6827.779000
Metadata:
title : 01:42:41.280
Chapter #0.14: start 6827.779000, end 7198.441000
Metadata:
title : 01:53:47.779
Chapter #0.15: start 7198.441000, end 7580.992000
Metadata:
title : 01:59:58.441
Stream #0:0(eng): Video: h264 (High), yuv420p, 1920x1080, SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc
Stream #0:1(cze): Audio: ac3, 48000 Hz, 5.1(side), fltp, 640 kb/s (default)
Metadata:
title : CZ
At least one output file must be specified

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


---> DB Level Info: 41, 100
---> Frame rate: 23,98
---> Aspect ratio: 16:9

Second:

ffmpeg version N-50460-g393dcbf Copyright (c) 2000-2013 the FFmpeg developers
built on Mar 4 2013 17:38:17 with gcc 4.6.2 (GCC)
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 --enable-zlib
libavutil 52. 17.103 / 52. 17.103
libavcodec 54. 92.100 / 54. 92.100
libavformat 54. 63.102 / 54. 63.102
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 41.100 / 3. 41.100
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
Input #0, matroska,webm, from 'Y.mkv':
Metadata:
title : *
creation_time : 2011-10-21 07:57:21
Duration: 01:28:51.00, start: 0.000000, bitrate: 12778 kb/s
Stream #0:0(eng): Video: h264 (High), yuv420p, 1920x1080, SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
Metadata:
title : *
Stream #0:1(cze): Audio: ac3, 48000 Hz, 5.1(side), fltp, 640 kb/s (default)
Metadata:
title : DD 5.1 @ 640 Kbps
Stream #0:2(slo): Audio: ac3, 48000 Hz, 5.1(side), fltp, 640 kb/s
Metadata:
title : DD 5.1 @ 640 Kbps
Stream #0:3(eng): Audio: dts (DTS), 48000 Hz, 5.1(side), fltp, 1536 kb/s
Metadata:
title : DTS 5.1 @ 1.5 Mbps
At least one output file must be specified

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


---> DB Level Info: 41, 100
---> Frame rate: 23,98
---> Aspect ratio: 16:9

Those two videos are streaming directly with Profile C selected but not with F. Do you have an idea why?

Thx, Michal