[FFmpeg-trac] #3289(undetermined:open): support L264 without "Lead Extension"

FFmpeg trac at avcodec.org
Sun Mar 13 02:56:50 CET 2016


#3289: support L264 without "Lead Extension"
-------------------------------------+-------------------------------------
             Reporter:  ami_stuff    |                    Owner:
                 Type:  enhancement  |                   Status:  open
             Priority:  wish         |                Component:
              Version:  git-master   |  undetermined
             Keywords:  h264         |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  1
-------------------------------------+-------------------------------------

Comment (by ami_stuff):

 Replying to [comment:6 ami_stuff]:
 > It looks like they produced non-standard files in v1 (1.0.0.28) version
 of their encoder (2005) and this got fixed in version v2 (1.0.0.35)
 (2006).
 >
 > http://www.datafilehost.com/d/af32e327
 >
 > Here are more V1 samples:
 >
 >
 https://web.archive.org/web/20050203212612/http://leadcodecs.com/Download/H264-Videos.htm
 >

 This open source decoder plays (almost correctly) Lead H264 v1 file:

 https://web.archive.org/web/20060101123100/http://www-user.tu-
 chemnitz.de/~mfie/stuff/SA/

 ffmpeg -i l264_v1.avi -vcodec copy l264_v1.264
 ffmpeg -i l264_v2.avi -vcodec copy l264_v2.264

 playh264 l264_[v1/v2].264

 "Minimal H.264 decoder (by Martin Fiedler)
 OPEN SOURCE. Basic decoder.
 http://keyj.s2000.ws/?page_id=41"

 http://forum.doom9.org/showthread.php?t=95939

--
Ticket URL: <https://trac.ffmpeg.org/ticket/3289#comment:7>
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