[FFmpeg-trac] #246(undetermined:new): Add support for mdat-only 3GP

[FFmpeg]

#246: Add support for mdat-only 3GP
--------------------------+--------------------------
 Reporter:  jsd           |        Type:  enhancement
   Status:  new           |    Priority:  normal
Component:  undetermined  |     Version:  unspecified
 Keywords:                |  Blocked By:
 Blocking:                |  Reproduced:  0
 Analyzed:  0             |
--------------------------+--------------------------
 Many cell phone cameras are now producing 3gp files with no moov atoms,
 only mdat.  Right now ffmpeg can't do anything with them.

 $ ffmpeg -i 12423.3gp
 ffmpeg version git-N-29818-gb7c7f89, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on May 11 2011 15:23:54 with gcc 4.1.2 20080704 (Red Hat 4.1.2-48)
   configuration: --enable-gpl --enable-libfaac --enable-libmp3lame
 --enable-libx264 --enable-pthreads --enable-static --disable-shared
 --disable-network --enable-nonfree --extra-ldflags=-static
   libavutil    51.  2. 1 / 51.  2. 1
   libavcodec   53.  5. 0 / 53.  5. 0
   libavformat  53.  0. 3 / 53.  0. 3
   libavdevice  53.  0. 0 / 53.  0. 0
   libavfilter   2.  5. 0 /  2.  5. 0
   libswscale    0. 14. 0 /  0. 14. 0
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x8e64a60] moov atom not found
 12423.3gp: Operation not permitted

 Support for this format would be great.

 Sample file available at:
  http://videoupload.thismoment.com.s3.amazonaws.com/mdat-only.3gp

-- 
Ticket URL: <https://www.avcodec.org/trac/ffmpeg/ticket/246>
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