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authorwm4 <wm4@nowhere>2019-05-31 20:13:57 +0200
committerwm4 <wm4@nowhere>2019-09-19 20:37:05 +0200
commita88b7bf0fc9f2b4da15aeaf51cfbf35e5776d8ea (patch)
treee4e825ed4a1c3d6bf15dd11d78f68d19a55f9a78 /DOCS/man/options.rst
parent165799157de1f688399356d25a7aebf695665c70 (diff)
downloadmpv-a88b7bf0fc9f2b4da15aeaf51cfbf35e5776d8ea.tar.bz2
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manpage: another comment on backward playback with hardware decoding
Diffstat (limited to 'DOCS/man/options.rst')
-rw-r--r--DOCS/man/options.rst7
1 files changed, 5 insertions, 2 deletions
diff --git a/DOCS/man/options.rst b/DOCS/man/options.rst
index 8ccf3caa4f..f55b38eb7a 100644
--- a/DOCS/man/options.rst
+++ b/DOCS/man/options.rst
@@ -478,7 +478,8 @@ Playback Control
created seek ranges may not join, because not enough overlap is achieved.
- Trying to use this with hardware video decoding will probably exhaust all
- your GPU memory and then crash a thing or two.
+ your GPU memory and then crash a thing or two. Or it will fail because
+ ``--hwdec-extra-frames`` will certainly be set too low.
- Stream recording is broken. ``--stream-record`` may keep working if you
backward play within a cached region only.
@@ -500,7 +501,9 @@ Playback Control
- Increasing ``--video-reversal-buffer`` might help if reversal queue
overflow is reported, which may happen in high bitrate video, or video
- with large GOP.
+ with large GOP. Hardware decoding mostly ignores this, and you need to
+ increase ``--hwdec-extra-frames`` instead (until you get playback without
+ logged errors).
- The demuxer cache is essential for backward demuxing. If it's too small,
a queue overflow will be logged, and backward playback cannot continue,