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Old 2nd November 2010, 04:19   #1  |  Link
frubsen
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Join Date: Jul 2004
Posts: 91
Extracting Audio from severely damaged MOV

Hi all,

I have a DVCPRO HD .MOV file from a Firestore recorded from an HVX200 that is severely damaged, I can't open it up in anything. I have tried everything from Mpegstreamclip to VLC..nothing will play it.

What I really need to do is extract the audio from it, I dont really care about the video at this point.

I feel like I should be able to do this with FFMPEG. This is where I am so far
Code:
Z:\Canon Video\video\broken file>ffmpeg -f dv -i test.mov -map 0:1 -acodec pcm_s16le -ac 2 audio.wav
FFmpeg version SVN-r25512, Copyright (c) 2000-2010 the FFmpeg developers
  built on Oct 18 2010 04:06:45 with gcc 4.4.2
  configuration: --enable-gpl --enable-version3 --enable-libgsm --enable-pthread
s --enable-libvorbis --enable-libtheora --enable-libspeex --enable-libmp3lame --
enable-libopenjpeg --enable-libschroedinger --enable-libopencore_amrwb --enable-
libopencore_amrnb --enable-libvpx --arch=x86 --enable-runtime-cpudetect --enable
-libxvid --enable-libx264 --extra-libs='-lx264 -lpthread' --enable-librtmp --ext
ra-libs='-lrtmp -lpolarssl -lws2_32 -lwinmm' --target-os=mingw32 --enable-avisyn
th --cross-prefix=i686-mingw32- --cc='ccache i686-mingw32-gcc' --enable-memalign
-hack
  libavutil     50.32. 3 / 50.32. 3
  libavcore      0. 9. 1 /  0. 9. 1
  libavcodec    52.92. 0 / 52.92. 0
  libavformat   52.83. 0 / 52.83. 0
  libavdevice   52. 2. 2 / 52. 2. 2
  libavfilter    1.52. 0 /  1.52. 0
  libswscale     0.12. 0 /  0.12. 0
[dv @ 01cfcf70] Estimating duration from bitrate, this may be inaccurate
Input #0, dv, from 'test.mov':
  Duration: 00:02:25.79, start: 0.000000, bitrate: 115084 kb/s
    Stream #0.0: Video: dvvideo, yuv422p, 960x720, 115084 kb/s, PAR 4:3 DAR 16:9
, 59.94 tbr, 59.94 tbn, 59.94 tbc
    Stream #0.1: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
    Stream #0.2: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
    Stream #0.3: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
    Stream #0.4: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
Output #0, wav, to 'audio.wav':
  Metadata:
    encoder         : Lavf52.83.0
    Stream #0.0: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
Stream mapping:
  Stream #0.1 -> #0.0
Press [q] to stop encoding
size=      44kB time=0.23 bitrate=1537.5kbits/s
video:0kB audio:44kB global headers:0kB muxing overhead 0.098162%
All I get is a 44kb wav file.

Anyone have any ideas?

If I don't do the -f dv command I get...."[mov,mp4,m4a,3gp,3g2,mj2 @ 01cfcf60] moov atom not found"
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