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

[FFmpeg]

#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:9 ami_stuff]:
 > attached sample (v1 encoder) decodes (with artefacts) with:
 >
 > {{{
 > mplayer -vc vssh264 -ao null -nosound l264_cavlc_qualityfactor_28.avi
 > }}}
 >
 > and
 >
 > {{{
 > ffmpeg -i l264_cavlc_qualityfactor_28.avi -vcodec copy out.h264
 >
 > playh264 out.h264
 > }}}
 >
 > so I would suggest to find out in which algo they made a mistake and
 support this crap

 It was actually file encoded by encoder V2, so just ignore this comment.

 I attached file encoded with encoder V1
 (l264_v1_cavlc_qualityfactor_28.avi​)- plays with artefacts with:

 {{{
 ffmpeg -vcodec copy -i l264_cavlc_qualityfactor_28.avi -vcodec copy
 out.h264

 playh264 out.h264
 }}}

 mplayer + vssh codec crashes.

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Ticket URL: <https://trac.ffmpeg.org/ticket/3289#comment:10>
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