[FFmpeg-trac] #2686(avcodec:open): Native AAC encoder collapses at high bitrates on some samples

FFmpeg trac at avcodec.org
Sat May 3 20:41:48 CEST 2014


#2686: Native AAC encoder collapses at high bitrates on some samples
-------------------------------------+-------------------------------------
             Reporter:  Kamedo2      |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  aac          |               Blocked By:
  regression                         |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by Kamedo2):

 I tried from the current git head, and the v8 patch seems to fail.
 v8-fix patch is alright.
 {{{
 $ patch -p1 < aac-improvements-wip-v8.patch
 patching file libavcodec/aac.h
 patching file libavcodec/aaccoder.c
 patching file libavcodec/aacenc.c
 patching file libavcodec/aacenc.h
 patching file libavcodec/aacpsy.c
 patching file libavcodec/psymodel.c
 Hunk #1 FAILED at 101.
 1 out of 1 hunk FAILED -- saving rejects to file libavcodec/psymodel.c.rej
 patching file libavcodec/psymodel.h

 $ patch -p1 < aac-improvements-wip-v8-fix.patch
 patching file libavcodec/aaccoder.c

 $ ./configure --enable-gpl --enable-version3 --enable-nonfree --enable-
 libfdk-a
 ac --enable-libmp3lame --enable-libfaac --enable-libvo-aacenc --extra-
 ldflags=-
 static --extra-cflags='-march=native -mfpmath=sse' --optflags=-O2
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/2686#comment:272>
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