[FFmpeg-trac] #4148(avcodec:open): Crash in ff_add_bytes_l2_sse2 when decoding attached APNG file
FFmpeg
trac at avcodec.org
Mon Dec 1 23:52:37 CET 2014
#4148: Crash in ff_add_bytes_l2_sse2 when decoding attached APNG file
-------------------------------------+-------------------------------------
Reporter: benoit | Owner:
Type: defect | Status: open
Priority: important | Component: avcodec
Version: git-master | Resolution:
Keywords: png crash | Blocked By:
SIGSEGV regression | Reproduced by developer: 1
Blocking: |
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Comment (by kurosu):
void (*add_bytes_l2)(uint8_t *dst /* align 16 */,
uint8_t *src1 /* align 16 */,
uint8_t *src2 /* align 16 */, int w);
rdx 0x7fffc400e3b4
rdi 0x7fffc400e754
dst/src2 are no longer abiding per the alignment constrain. Either the DSP
must be modified (most probably that), a specific unaligned version be
written, or the caller modified to use aligned addresses.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4148#comment:4>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list