The bug was caused by using negative numbers as the end for playing forever (or until the end of the sound is reached) in the library. This was used with speaker objects which have an end of FLT_MAX now instead and the negative number interpretation was removed. I hope this doesn't break anything else.
The problem here was that animation buffers got initialized with zeros in the beginning for unknown parts. Now it gets initialized with the first known value.
The bug's result was that the animation of the pitch started with 0 on first playback and thus any seeking while the pitch is zero resulted in seeking to the beginning.
This case was handled specially in writeffmpeg.c and seems it makes
audio export happy in all cases now.
TODO: libav-10 doesn't work with AC3 codec yet because this bloody
library ONLY supports FLTP format and FFmpeg ONLY supports FLT.
This is not fun guy, it really isn't! Where's your conscience??
CC: nexyon
Issue was caused by the way how audio output works from audaspace.
Now made it much closer to what's happening in ffmpeg.c and writeffmpeg.c.
Also fixed issues with incompatible combinations of codecs and formats
in mixdown settings.
CODEC_ID_* have been replaced with AV_CODEC_ID_* in new libavcodec
versions.
Update the code to use those new identifiers.
Added a compatibility code to ffmpeg_compat.h
Changes for VC2013
Now, I can build Blender with VC2013 with Cycles, Collada, OpenExr,OpenImageIO disabled. Also, you need VC2008 sp1 installed to make old libs compatible.
There was a bug in how the iterators of STL list was used when erasing during iteration of a list, which was triggered by the STL implementation of MSVC, but hid well with gcc.
For details see bug comments. The problem was that blender's animation system didn't update the audio animation system anymore due to an optimization. Fixed this in a complex but proper way in the audio animation system, so that it can handle gaps of missing values.
Now sounds that stopped playing but are still kept in the device can be differentiated from paused sounds with this state.
This should also fix the performance issues mentioned in [#36466] End of SequencerEntrys not set correctly.
Please test if sound pausing, resuming and stopping works fine in the BGE and sequencer, my tests all worked fine, but there might be a use case that needs some fixing.
After planar codecs support minimal FFmpeg was
bumped to 0.10 which was not so much nice because
it was only released only later last year.
Didn't find a way to make compatibility code local
in ffmpeg_compat, so there're some ifdefs in
audaspace and writeffmpeg.
Not entirely happy, but having a bit of ifdefs in
code better than lots of real PITA for platform
maintainers.
Added new build option WITH_JACK_DYNLOAD for CMake and
WITH_BF_JACK_DYNLOAD for SCons, which means there'll be
no build-time linking against libjack and getting symbols
from libjack will happen runtime using dlopen and dlsym
tricks.
Alternative would be to use weak linking, but it'll require
having wrapper for preloading libjack.
This new options are disabled by default and they only
intended to be used on linux. Other platforms shall not
be using this and there shall be no functional changes
on non-linux platforms at all.
Patch makes it possible to compile blender with recent ffmpeg
and libav libraries, mainly by getting rid of deprecated API.
Original patch by Campbell Barton with own modifications to
support compilation with older ffmpeg versions.
This patch could break compatibility of FFV1 videos playing
back in older players, mainly because of alpha support changes.
Preserving compatibility with such players became a headache
and think it's high time to get rid of workarounds here.
