Comment 8 for bug 457732

OK,

I can't speak for the other subscribers but here is the license from my build which clearly contains libx264:

tester@av3mobile:~$ ffmpeg -L
FFmpeg version SVN-r20130, Copyright (c) 2000-2009 Fabrice Bellard, et al.
  built on Oct 1 2009 23:02:32 with gcc 4.3.4
  configuration: --prefix=/usr --extra-cflags='-Wall -g ' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-libfaad --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libtheora --enable-libdc1394 --enable-libspeex --enable-nonfree --disable-stripping --enable-avfilter --enable-libdirac --disable-decoder=libdirac --enable-libschroedinger --disable-encoder=libschroedinger --enable-avfilter-lavf --enable-libopenjpeg --enable-version3 --disable-altivec --disable-armv5te --disable-armv6 --disable-vis
  libavutil 50. 3. 0 / 50. 3. 0
  libavcodec 52.36. 0 / 52.37. 0
  libavformat 52.39. 0 / 52.39. 0
  libavdevice 52. 2. 0 / 52. 2. 0
  libavfilter 0. 5. 0 / 0. 5. 0
  libswscale 0. 7. 1 / 0. 7. 1
  libpostproc 51. 2. 0 / 51. 2. 0
This version of FFmpeg has nonfree parts compiled in.
Therefore it is not legally redistributable.
tester@av3mobile:~$

Also here is the output of ffmpeg running a successful x264 conversion from an iPod WinFF preset:

tester@av3mobile:~$ ffmpeg -i /mnt/DATA/Videos/test.flv -r 29.97 -acodec libfaac -ab 112k -ac 2 -s 640x480 -vcodec libx264 -vpre hq -vpre ipod640 -crf 21 -bt 256k -aspect 4:3 -f ipod /home/tester/video.m4v
FFmpeg version SVN-r20130, Copyright (c) 2000-2009 Fabrice Bellard, et al.
  built on Oct 1 2009 23:02:32 with gcc 4.3.4
  configuration: --prefix=/usr --extra-cflags='-Wall -g ' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-libfaad --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libtheora --enable-libdc1394 --enable-libspeex --enable-nonfree --disable-stripping --enable-avfilter --enable-libdirac --disable-decoder=libdirac --enable-libschroedinger --disable-encoder=libschroedinger --enable-avfilter-lavf --enable-libopenjpeg --enable-version3 --disable-altivec --disable-armv5te --disable-armv6 --disable-vis
  libavutil 50. 3. 0 / 50. 3. 0
  libavcodec 52.36. 0 / 52.37. 0
  libavformat 52.39. 0 / 52.39. 0
  libavdevice 52. 2. 0 / 52. 2. 0
  libavfilter 0. 5. 0 / 0. 5. 0
  libswscale 0. 7. 1 / 0. 7. 1
  libpostproc 51. 2. 0 / 51. 2. 0

Seems stream 0 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 29.97 (30000/1001)
Input #0, flv, from '/mnt/DATA/Videos/test.flv':
  Duration: 00:05:17.28, start: 0.000000, bitrate: 260 kb/s
    Stream #0.0: Video: flv, yuv420p, 320x214, 260 kb/s, 29.97 tbr, 1k tbn, 1k tbc
    Stream #0.1: Audio: mp3, 22050 Hz, 1 channels, s16
  Metadata
    duration : 317
    starttime : 0
    totalduration : 317
    width : 320
    height : 214
    videodatarate : 254
    audiodatarate : 64
    totaldatarate : 326
    framerate : 30
    bytelength : 12949356
    canseekontime : true
    sourcedata : B4A7DD1E6
[libx264 @ 0x9a4a8c0]using SAR=1/1
[libx264 @ 0x9a4a8c0]using cpu capabilities: MMX2 Cache64
[libx264 @ 0x9a4a8c0]profile Baseline, level 3.0
Output #0, ipod, to '/home/tester/video.m4v':
    Stream #0.0: Video: libx264, yuv420p, 640x480 [PAR 1:1 DAR 4:3], q=10-51, 200 kb/s, 2997 tbn, 29.97 tbc
    Stream #0.1: Audio: aac, 22050 Hz, 2 channels, s16, 112 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
  Stream #0.1 -> #0.1
Press [q] to stop encoding
frame= 9509 fps= 19 q=-1.0 Lsize= 29808kB time=317.23 bitrate= 769.7kbits/s
video:27224kB audio:2454kB global headers:0kB muxing overhead 0.434555%
[libx264 @ 0x9a4a8c0]frame I:39 Avg QP:14.25 size: 22833
[libx264 @ 0x9a4a8c0]frame P:9470 Avg QP:20.57 size: 2850
[libx264 @ 0x9a4a8c0]mb I I16..4: 43.3% 0.0% 56.7%
[libx264 @ 0x9a4a8c0]mb P I16..4: 1.7% 0.0% 1.1% P16..4: 20.1% 7.7% 2.0% 0.0% 0.0% skip:67.3%
[libx264 @ 0x9a4a8c0]coded y,uvDC,uvAC intra: 37.5% 38.4% 22.5% inter: 10.0% 11.1% 1.4%
[libx264 @ 0x9a4a8c0]i16 v,h,dc,p: 62% 22% 9% 7%
[libx264 @ 0x9a4a8c0]i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 13% 16% 14% 8% 11% 11% 12% 7% 8%
[libx264 @ 0x9a4a8c0]kb/s:702.89
tester@av3mobile:~$

So ffmpeg/libx264 are working here, just not with openshot. If I use the advanced export options I get "unknown stream" errors so something in the muxing process isn't happening. Hope this helps, please let me know if you need more output.