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  1. Hello,

    I am also having trouble transcoding raw HDTV streams to H.264. I'm using all the presets after dropping the .m2t in the summary source well, and then selecting the h.264 x264 quick preset.

    The experience is that the audio frequently gets out of sync with the video, but then gets back in sinc. It's only in sync for a moment, and the degree of separation appears to increase slowly. It seams as though at scene changes, they re-sync.

    My guess is that the video is being put in an an inappropriate frame rate, but that somehow at scene changes,

    Output from the info window after transcoding is below.

    Thanks,
    Avram

    Encoding started on Mon May 8 11:53:46 EDT 2006
    FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard
    Mac OSX universal build for ffmpegX
    configuration: --enable-memalign-hack --enable-mp3lame --enable-gpl --disable-vhook --disable-ffplay --disable-ffserver --enable-a52 --enable-xvid --enable-faac --enable-faad --enable-amr_nb --enable-amr_wb --enable-pthreads --enable-x264
    libavutil version: 49.0.0
    libavcodec version: 51.9.0
    libavformat version: 50.4.0
    built on Apr 15 2006 04:58:19, gcc: 4.0.1 (Apple Computer, Inc. build 5250)
    x264 [info]: using cpu capabilities MMX MMXEXT SSE SSE2
    mp4 [info]: initial delay 0 (scale 30000)
    Input #0, mpegts, from '/Volumes/HDTV/EyeTV Archive/Two and a Half Men - Golly Moses, She's a Muffin Clip.eyetv/000000000a0edae8.m2t':
    Duration: 00:03:20.4, start: 74093.480322, bitrate: 17339 kb/s
    Stream #0.0[0x31], 29.97 fps(r): Video: mpeg2video, yuv420p, 1920x1080, 65000 kb/s
    Stream #0.1[0x34]: Audio: ac3, 48000 Hz, stereo, 384 kb/s
    Output #0, yuv4mpegpipe, to 'pipe:':
    Stream #0.0, 29.97 fps(c): Video: rawvideo, yuv420p, 1920x1088, q=2-31, 200 kb/s
    Stream mapping:
    Stream #0.0 -> #0.0
    Press [q] to stop encoding
    [mpeg2video @ 0x54340c]ac-tex damaged at 76 39
    [mpeg2video @ 0x54340c]Warning MVs not available
    [mpeg2video @ 0x54340c]concealing 3453 DC, 3453 AC, 3453 MV errors
    video:0kB audio:0kB global headers:0kB muxing overhead inf%
    x264 [info]: slice I:69 Avg QP:21.35 size:152381 PSNR Mean Y:44.22 U:47.73 V:47.94 Avg:45.10 Global:45.02
    x264 [info]: slice P:5937 Avg QP:24.20 size: 29105 PSNR Mean Y:41.64 U:46.34 V:47.12 Avg:42.76 Global:42.66
    x264 [info]: mb I I16..4: 44.9% 0.0% 55.1%
    x264 [info]: mb P I16..4: 16.2% 0.0% 1.9% P16..4: 49.5% 0.0% 0.0% 0.0% 0.0% skip:32.4%
    x264 [info]: final ratefactor: 21.82
    x264 [info]: PSNR Mean Y:41.667 U:46.359 V:47.128 Avg:42.792 Global:42.676 kb/s:7317.88
    encoded 6006 frames, 2.75 fps, 7319.19 kb/s
    FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard
    Mac OSX universal build for ffmpegX
    configuration: --enable-memalign-hack --enable-mp3lame --enable-gpl --disable-vhook --disable-ffplay --disable-ffserver --enable-a52 --enable-xvid --enable-faac --enable-faad --enable-amr_nb --enable-amr_wb --enable-pthreads --enable-x264
    libavutil version: 49.0.0
    libavcodec version: 51.9.0
    libavformat version: 50.4.0
    built on Apr 15 2006 04:58:19, gcc: 4.0.1 (Apple Computer, Inc. build 5250)
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Volumes/Painter/TV/2.5m-from-mt2.mov.video.mp4':
    Duration: 00:03:20.4, start: 0.000000, bitrate: 7320 kb/s
    Stream #0.0(und), 29.97 fps(r): Video: h264, yuv420p, 1920x1088
    Input #1, mpegts, from '/Volumes/HDTV/EyeTV Archive/Two and a Half Men - Golly Moses, She's a Muffin Clip.eyetv/000000000a0edae8.m2t':
    Duration: 00:03:20.4, start: 74093.480322, bitrate: 17339 kb/s
    Stream #1.0[0x31], 29.97 fps(r): Video: mpeg2video, yuv420p, 1920x1080, 65000 kb/s
    Stream #1.1[0x34]: Audio: ac3, 48000 Hz, stereo, 384 kb/s
    Output #0, mp4, to '/Volumes/Painter/TV/2.5m-from-mt2.mov.audio.mp4':
    Stream #0.0: Audio: aac, 48000 Hz, stereo, 128 kb/s
    Stream mapping:
    Stream #1.1 -> #0.0 [sync #0.0]
    Press [q] to stop encoding
    video:0kB audio:3127kB global headers:0kB muxing overhead 2.364915%

    IsoMedia import - track ID 1 - Audio (SR 48000 - 2 channels)

    Saving /Volumes/Painter/TV/2.5m-from-mt2.mov.mp4: 0.500 secs Interleaving

    Encoding completed on Mon May 8 12:30:39 EDT 2006

  2. See reply in other thread, and please continue talk in that other tread.
    http://forum.videohelp.com/viewtopic.php?t=300177




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