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  1. Member
    Join Date
    Jun 2008
    Location
    Canada
    Search Comp PM
    Hi All -

    I'm trying to convert an H.264 encoded MOV file to an FLV file. All appears to be going fine, I get no errors on the encode, but when I play the FLV file back it is INCREDIBLY choppy (even though it reports it is playing at 30fps) and the audio and video are very, very out of sync.

    The log follows below. If it would help, you can download the source video at http://www.performancecoaching.ca.s3.amazonaws.com/self_talk.mov and the resulting FLV file at the http://www.performancecoaching.ca.s3.amazonaws.com/self_talk.flv

    Any help very appreciated for a frustrated man ..
    Dane

    FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard
    Mon Jun 9 08:50:16 EDT 2008
    Mac OSX universal build for ffmpegX
    libavutil version: 49.0.0
    libavcodec version: 51.9.0
    libavformat version: 50.4.0
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0x5597b8]negative ctts, ignoring
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Volumes/Dane Music/ITF Video/Videos For Review/self_talk.mov':
    Duration: 00:03:30.5, start: 0.000000, bitrate: 357 kb/s
    Stream #0.0(eng): Audio: aac, 48000 Hz, stereo
    Stream #0.1(eng), 29.97 fps(r): Video: h264, yuv420p, 588x330
    Output #0, flv, to '/Volumes/Dane Music/ITF Video/Videos For Review/self_talk.mov.ff.avi.flv':
    Stream #0.0, 29.97 fps(c): Video: flv, yuv420p, 592x330, q=2-15, 940 kb/s
    Stream #0.1: Audio: mp3, 44100 Hz, stereo, 128 kb/s
    Stream mapping:
    Stream #0.1 -> #0.0 [sync #0.0]
    Stream #0.0 -> #0.1 [sync #0.1]
    video:3065kB audio:3279kB global headers:0kB muxing overhead 97.020365%
    bench: utime=37.675s
    ---
    /Volumes/Dane Music/ITF Video/Videos For Review/self_talk.mov.ff.avi.flv:
    hasKeyframes: true
    cuePoints:
    audiodatarate: 128.321383129292
    hasVideo: true
    stereo: true
    canSeekToEnd: false
    framerate: 30
    audiosamplerate: 44000
    videocodecid: 2
    datasize: 12743843
    lasttimestamp: 209.843
    audiosamplesize: 16
    audiosize: 3454292
    hasAudio: true
    audiodelay: 0
    videosize: 9288357
    metadatadate: Mon Jun 9 08:50:58 GMT-0400 2008
    metadatacreator: inlet media FLVTool2 v1.0.6 - http://www.inlet-media.de/flvtool2
    lastkeyframetimestamp: 208.208
    height: 330
    filesize: 12801160
    hasMetadata: true
    keyframes:
    times:
    - 0
    - 8.008
    - 16.016
    - 24.024
    - 32.032
    - 40.04
    - 48.048
    - 56.056
    - 64.064
    - 72.072
    - 80.08
    - 88.088
    - 96.096
    - 104.104
    - 112.112
    - 120.12
    - 128.128
    - 136.136
    - 144.144
    - 152.152
    - 160.16
    - 168.168
    - 176.176
    - 184.184
    - 192.192
    - 200.2
    - 208.208
    filepositions:
    - 1610
    - 377106
    - 852232
    - 1339974
    - 1832394
    - 2373357
    - 2855058
    - 3344847
    - 3833798
    - 4293075
    - 4821022
    - 5306390
    - 5792362
    - 6239250
    - 6748339
    - 7237304
    - 7772495
    - 8241045
    - 8781187
    - 9263750
    - 9777335
    - 10288818
    - 10800961
    - 11329035
    - 11772933
    - 12229984
    - 12696475
    audiocodecid: 2
    videodatarate: 351.469126918696
    duration: 209.876
    hasCuePoints: false
    width: 592
    ...
    Encoding completed on Mon Jun 9 08:51:01 EDT 2008

  2. Member
    Join Date
    Jun 2008
    Location
    Canada
    Search Comp PM
    Thanks a ton ... should have searched more thoroughly ... appreciate your reply.

    Dane




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