[FFmpeg-trac] #2538(undetermined:new): FFMPEG crash in decoding MPEG4 using NEON
FFmpeg
trac at avcodec.org
Tue May 21 03:50:43 CEST 2013
#2538: FFMPEG crash in decoding MPEG4 using NEON
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Reporter: | Owner:
felixyang_tw | Status: new
Type: defect | Component:
Priority: normal | undetermined
Version: unspecified | Resolution:
Keywords: crash | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by felixyang_tw):
I found the reason. When I set AVCodecContext:lowres to 3, it always crash
in MPEG4 decoding, but it's fine in H.264. When I set
AVCodecContext:lowres to 0, it is OK. I trace the code I find if the
lowres is not 0 , MPV_motion_lowres will be called. MPV_motion_lowres will
call ff_put_h264_chroma_mc2_neon and it crashes. I don't know is there any
limitation in ff_put_h264_chroma_mc2_neon?
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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2538#comment:5>
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