id,summary,reporter,owner,description,type,status,priority,component,version,resolution,keywords,cc,blockedby,blocking,reproduced,analyzed
1135,ffmpeg/ffplay crashes with lowres=1 or lowres=3 with 1080i mpeg2 video on arm-neon,yiwang,,"This was found on iOS (ipad1+ and iPhone4+) device.

It did not crash for the following cases:
- compiled for armv6, or
- compiled for i386, or
- with 720p/480p mpeg2video, or
- with 1080i mpeg2video but lowres=2

./ffmpeg -vlowres 2 -i video_6.ts -benchmark -f null null.ts

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x01fcd000
0x00148460 in ff_put_h264_chroma_mc4_neon ()
(gdb) bt
#0  0x00148460 in ff_put_h264_chroma_mc4_neon ()
#1  0x004069cc in MPV_motion_lowres ()
#2  0x0041204c in MPV_decode_mb ()
#3  0x003d864c in mpeg_decode_slice ()
#4  0x003d93cc in decode_chunks ()
#5  0x003dbb3c in mpeg_decode_frame ()
#6  0x004c3e0c in avcodec_decode_video2 ()
#7  0x00008488 in output_packet ()
#8  0x0000cf34 in transcode ()
#9  0x0000d7a0 in main ()

- ffplay will crash at the exact same function
- found on master, 0.10.2, 0.9.1 

",defect,closed,normal,avcodec,git-master,duplicate,arm lowres crash,,,,0,0