#11245: Slow HEIC decoding with "hevc_cuvid"
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Reporter: dkode | Owner: (none)
Type: defect | Status: new
Priority: important | Component: avformat
Version: 7.1 | Resolution:
Keywords: heif | Blocked By:
hevc_cuvid |
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by James):
>This is grid type of heic image and ffmpeg is taking 40-60 seconds
>I tried setup debugging and found
libavformat/demux.c:avformat_find_stream_info is consuming most of the
time.
This grid based image has 49 separate HEVC streams, 48 of them being the
actual grid and one being a thumbnail, and each of which will fire their
own decoder. The slowness may be hevc_cuvid being initialized that many
times just for probing.
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Ticket URL: <https://trac.ffmpeg.org/ticket/11245#comment:8>
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