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--rescue mode doesn't set pdata->capture_frameno to the total
The whole --rescue initialization path is a snowflake and should
get reworked to share more in common with the normal startup.
reported by @xloem, thanks!
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In preparation for posix_fallocate() pre-allocation of cache
files, expect zeroes for the header when running off the end of
valid data into the only allocated space, and handle gracefully
as an EOF equivalent.
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This minimally switches all the ad-hoc image cache files handling
over to using CacheFile.
I left the audio cache alone for now as it seems to not be
compressed. It might make sense in the future to switch that
over as well, especially if I start adding features to CacheFile
like preallocating and async periodic fdatasync.
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Making things a bit more consistent
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Largely mechanical cosmetic changes for more consistency
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Cosmetic rename to make naming consistent, normalizing on audio.
This is a minimal rename and includes update, subsequent commit
will change naming as appropriate in rmd_encode_audio_buffer.[ch]
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these concepts may return but not in this form
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This brings the !--on-the-fly-encoding mode up to speed.
The cached file header loses the total_frames counter, as the
capture_frameno already represents this.
Dropped frames are detected by simply looking at the difference
between the previous capture_frameno and the current one. This
simply gets passed to the encoder as a n_frames count so theora
can duplicate the frames as needed.
This was being done manually before by looking at the frameno and
total frames in each header and maintaining separate counts for
"extra frames" "missed frames" etc, and resubmitting entire
frames multiply for encoding dropped frames.
So a chunk of code has been thrown out from rmd_load_cache.c, and
some general cleanups have occurred there as well.
I also needed to add more locking around pdata->avd accesses.
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Now users can easily differentiate which rmd subtasks are
busy by using top-like tools in show-threads mode.
Also aids in troubleshooting...
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This restores the recordmydesktop/ subdir as root from the mirror I
cloned by fork from.
I have no particular interest in the gtk/qt frontends and it doesn't
appear they were part of a single tree in the past. But I will
probably preserve backwards compatibility of the cli so they can
continue to work with this fork installed.
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