This bug affects either mencoder SVN-r29796-4.4.1 (media-video/mplayer-1.0_rc4_p20091026-r1) or media-libs/x264-0.0.20091021, I'm not sure wich one. I cannot test them independently, as they depend on each other these specific versions. When trying to run mencoder with "-ovc x264" and if the encoding options (-x264encopts) contain "b_pyramid", mencoder will fail with the following error: "Option x264encopts: Bad argument b_pyramid=(null)" This can be remedied by simply removing the b_pyramid option. B_pyramid works fine with the currently stable versions of mencoder and x264. It may be noteworthy that I run an otherwise stable system. The only ~amd64 packages on my installation that may be relevant to this issue are media-video/ffmpeg-0.5_p20373, media-libs/x264-0.0.20091021, media-video/mplayer-1.0_rc4_p20091026-r1. Reproducible: Always Steps to Reproduce: 1. emerge media-video/mplayer-1.0_rc4_p20091026-r1 2. run mencoder with -ovc x264 -x264encopts b_pyramid Actual Results: Mencoder fails with the aforementioned error message. Expected Results: Mencoder should successfully encode my video. The full command that causes this failure: mencoder filename.vob \ -aspect 4:3 \ -ovc x264 \ -x264encopts subq=3:bframes=3:b_pyramid:weight_b:turbo=1:pass=1:psnr:threads=3:bitrate=900 \ -ofps 25 \ -oac copy \ -of rawvideo \ -o filename.264 This is the full output: MEncoder SVN-r29796-4.4.1 (C) 2000-2009 MPlayer Team Option x264encopts: Bad argument b_pyramid=(null) success: format: 0 data: 0x0 - 0xdb0fb800 MPEG-PS file format detected. VIDEO: MPEG2 720x576 (aspect 2) 25.000 fps 9200.0 kbps (1150.0 kbyte/s) [V] filefmt:2 fourcc:0x10000002 size:720x576 fps:25.000 ftime:=0.0400 ========================================================================== Opening audio decoder: [liba52] AC3 decoding with liba52 Using SSE optimized IMDCT transform Using MMX optimized resampler AUDIO: 48000 Hz, 2 ch, s16le, 192.0 kbit/12.50% (ratio: 24000->192000) Selected audio codec: [a52] afm: liba52 (AC3-liba52) ========================================================================== Opening video filter: [expand osd=1] Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 0 ========================================================================== Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough Could not find matching colorspace - retrying with -vf scale... Opening video filter: [scale] The selected video_out device is incompatible with this codec. Try appending the scale filter to your filter list, e.g. -vf spp,scale instead of -vf spp. VDecoder init failed :( Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family Unsupported PixelFormat -1 Selected video codec: [ffmpeg2] vfm: ffmpeg (FFmpeg MPEG-2) ========================================================================== audiocodec: framecopy (format=2000 chans=2 rate=48000 bits=16 B/s=24000 sample-1) Movie-Aspect is 1.33:1 - prescaling to correct movie aspect. FATAL: Cannot initialize video driver.
This is not a bug, the code for b_pyramid was changed on 19th October, so it needs an argument now: --b-pyramid <string> Keep some B-frames as references [%s] - none: Disabled - strict: Strictly heirarchical pyramid - normal: Non-strict (not Blu-ray compatible) See http://mailman.videolan.org/pipermail/x264-devel/2009-October/006463.html
