[x264-devel] problem integration libx264 in ffmpeg

[M.A.E.M. Hanson]

Jason Garrett-Glaser wrote:
>> I can confirm I'm have the same issue as the op. Here is my command line:
>>
>> ffmpeg -y -i test_material.mpg -f matroska -an -pass 1 -vcodec libx264 -vpre
>> lossless_fast -threads 0 /dev/null && ffmpeg -y -i test_material.mpg -acodec
>> copy -pass 2 -vcodec libx264 -vpre lossless_fast -threads 0
>> ffmpeg_2pass_lossless_fast.mkv
>>
>> The contents of the lossless_fast preset:
>>
>> coder=0
>> flags=+loop
>> cmp=+chroma
>> partitions=-parti8x8+parti4x4+partp8x8-partp4x4-partb8x8
>> me_method=hex
>> subq=3
>> me_range=16
>> g=250
>> keyint_min=25
>> sc_threshold=40
>> i_qfactor=0.71
>> b_strategy=1
>> qcomp=0.6
>> qmin=10
>> qmax=51
>> qdiff=4
>> directpred=1
>> flags2=+fastpskip
>> cqp=0
>>
>> and the specific libx264 error (separated for ease of reading):
>>
>> Input #0, mpeg, from 'test_material.mpg':
>> Duration: 00:00:30.17, start: 0.502000, bitrate: 14787 kb/s
>> Stream #0.0[0x1e0]: Video: mpeg2video, yuv420p, 1920x1080 [PAR 1:1 DAR
>> 16:9], 65000 kb/s, 29.97 tbr, 90k tbn, 59.94 tbc
>> Stream #0.1[0x80]: Audio: ac3, 48000 Hz, 5.1, s16, 384 kb/s
>>
>> [libx264 @ 0x869c760]no ratecontrol method specified
>>
>> Output #0, matroska, to 'ffmpeg_2pass_lossless_fast.mkv':
>> Stream #0.0: Video: libx264, yuv420p, 1920x1080 [PAR 1:1 DAR 16:9], q=10-51,
>> pass 2, 200 kb/s, 90k tbn, 29.97 tbc
>> Stream #0.1: Audio: ac3, 48000 Hz, 5.1, s16, 384 kb/s
>> Stream mapping:
>> Stream #0.0 -> #0.0
>> Stream #0.1 -> #0.1
>> Error while opening encoder for output stream #0.0 - maybe incorrect
>> parameters such as bit_rate, rate, width or height
>>
>> The version of x264 installed (I'm running an Arch Linux derived OS) is a
>> snapshot from 2009-04-16.
>>
>> Any ideas what could be causing x264 to complain about a ratecontrol method?
> 
> This error *CANNOT APPEAR* unless ffmpeg has been miscompiled.
> 
> The most common way for this to happen is to compile against a
> different libx264 than you linked to.  You can check by using "ldd" on
> your copy of ffmpeg and comparing the x264 API version number against
> the X264_BUILD specified in the x264.h file in your /usr/local/include
> (or wherever it is on your system).

Thank you for your quick reply.

[root at mythbox-mbe ~]# ldd /usr/bin/ffmpeg | grep x264
	libx264.so.67 => /usr/lib/libx264.so.67 (0xb6fec000)
[root at mythbox-mbe ~]# cat /usr/include/x264.h | grep X264_BUILD
#define X264_BUILD 67

It seems things are ok... Unless that # is not supposed to be there. 
Any other things I can check?

mihanson