Opened 5 years ago
Closed 5 years ago
#7725 closed defect (needs_more_info)
[FFmpeg-qsv][vc1 decode] vc1 decoding hangs with undefined error
| Reported by: | Andrey | Owned by: | |
|---|---|---|---|
| Priority: | normal | Component: | undetermined |
| Version: | git-master | Keywords: | qsv |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | no |
Description
How to reproduce:
build/lin_x64/bin/ffmpeg -y -hwaccel qsv -c:v vc1_qsv -i SA30037.vc1 -frames 900 -async_depth 1 -f null -
ffmpeg version N-92833-gfccba32b4c
Output:
[vc1_qsv @ 0x555985b5dbc0] Error during QSV decoding.: undefined behavior (-16) Error while decoding stream #0:0: Internal bug, should not have happened [vc1_qsv @ 0x555985b5dbc0] Error during QSV decoding.: undefined behavior (-16) Error while decoding stream #0:0: Internal bug, should not have happened [vc1_qsv @ 0x555985b5dbc0] Error during QSV decoding.: undefined behavior (-16) Error while decoding stream #0:0: Internal bug, should not have happened [vc1_qsv @ 0x555985b5dbc0] Error during QSV decoding.: undefined behavior (-16) Error while decoding stream #0:0: Internal bug, should not have happened
Change History (5)
comment:1 by , 5 years ago
| Component: | ffmpeg → undetermined |
|---|---|
| Keywords: | qsv added; ffmpeg-qsv removed |
| Priority: | important → normal |
comment:3 by , 5 years ago
Cannot reproduce with streams from http://fate-suite.ffmpeg.org/vc1/.
Only with conformance stream SA30037.vc1 (sha1sum: c6483f2e5f1de357c2f5d7ee55cebb3f5c4678f0).
Did we step into range mapping when VC1 decoder takes surfaces and don't give them back as an output, i.e. releases them silently at some point?
comment:4 by , 5 years ago
Still reproducible, commit hashes for stack components:
OS: Ubuntu 18.04, kernel 4.19.5
Mediasdk: https://github.com/Intel-Media-SDK/MediaSDK/commit/a14166bd60890c89b174686d68238f6972898b47
FFmpeg: https://github.com/FFmpeg/FFmpeg/commit/85051febc62e396cbe46c55d674fa809c890d3f9
Media driver: https://github.com/intel/media-driver/commit/224141564fe20c19e279ec004f89fa92534f90a0
Libva: https://github.com/intel/libva/commit/0dc70068e49f9538fbd03f2f0aa1e56a91e986e7
Libva-utils: https://github.com/intel/libva-utils/commit/e8045a4fd83193d4c29efdb54253951d25e00a84
GMM: https://github.com/intel/gmmlib/commit/8bee050d28f0d926551a0726ad50b66a59ae8b4d
comment:5 by , 5 years ago
| Resolution: | → needs_more_info |
|---|---|
| Status: | new → closed |
Please reopen if you can provide the input sample.
Please provide the missing information to make this a valid ticket and an input sample.