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- Make FFmpeg initialization called from creator, not from functions
which requires FFmpeg. Makes it easier to follow when initialization
should happen.
- Enable DNxHD codec. It was commented a while ago due to some strange
behavior on some platforms. Re-tested it on Linux and Windows and
it seemd to be working quite nice. Would let it be tested further,
if it wouldn't be stable enough, easy to comment it again.
- Make non-error messages from writeffmpeg.c printed only if ffmpeg
debug argument was passed to blender. Reduces console pollution
with messages which are not useful for general troubleshooting.
Error messages would still be printed to the console.
- Show FFmpeg error message when video stream failed to allocate.
makes it easier to understand what exactly is wrong from Blender
interface, no need to restart blender with FFmpeg debug flag and
check for console messages.
Used custom log callback for this which stores last error message
in static variable. This is not thread safe, but with current
design FFmpeg routines could not be called form several threads
anyway, so think it's fine solution/
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This switches some areas of Blender which are related on FFmpeg stuff
from deprecated symbols to currently supported one.
Pretty straightforward changes based on documentation of FFmpeg's
API which symbols should be now used.
This should make Blender compatible with recent FFmpeg 0.11.
Should be no functional changes.
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- style - multi-line ifs move braces onto new lines.
- iterators - convert some to macros, other split up and move brace.
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always use if (...) even if the macros dont require it (confuses parsers)
define macros without the ';'s included.
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else if's
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Split proxy build operator into three parts:
- Prepare context (IMB_anim_index_rebuild_context) which prepares all
needed data and stores it in an anonymous structure used by specific
builder lately.
- Build proxies/timecodes into temporary files (IMB_anim_index_rebuild)
This function will build all selected proxies/timecodes into a temporary
files so old proxies will be still available during building.
- Finish building proxies (IMB_anim_index_rebuild_finish) which copies
temporary files over old proxies filed and releases all resources used
by a context.
Context creation and finishing building happens in a main thread so
it's easy and safe to close all opened handles of proxies files and
refresh cache after rebuilding is finished.
This should finally fix #30315: Temporary proxy files are not erased and old proxys are not updated if the proxy is built more then once (windows)
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fix for sequencer unique naming which was missed with string length update.
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Video frame decoding used to leave packet reading cycle before frame
is fully decoded in cases frame is encoded by several packets.
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(in keeping with most of blenders code)
also split some long lines in own code.
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Bug was caused by workaround for old versions of FFmpeg which aren't supported
anymore due to pts stuff.
Removing workarounds for alpha channels.
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This fixed two issues:
* RAW DV-seeking has to be done using DTS. Sounds silly, but ffmpeg
tracks internal state in RAW DV format decoder and runs mad, if
we seek by byte. Don't know, why I haven't noticed that, when I
added it.
* real fix(tm) for #29295
problem was: we did AVFrame read ahead, and the pattern
read_frame -> decode -> read_frame -> do color conversion of first frame
works everywhere but RAW RGB-files which do some pointer shuffling
within ffmpeg to save a memcpy...
I removed read ahead completely, since it didn't work like originally
intented. Might come back later, but the original purpose (making
resyncing easier if we are completely lost in stream) it never
fullfilled.
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Unfortunately, error was caused by own attempt to deal with some kind of broken
videos when was investigating crashes in sequencer. Issue discovered that time
was related on values stored in timecode index and using them as signed data type
later.
Trying to use unsigned value here leads to signed/unsigned check failures.
Prefer just to pre-process that kind of videos i've been trying to deal with
rather than making more global changes during BCON3.
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Crash was caused by several conditions:
- Frame which failed to decode tried to be converted to RGB colorspace
and some filters like deinterlacing used to be applied as well
(it's avscale stuff sws_scale where crash happened).
- In some cases it happened reading of freed memory when calling
sws_scale function. Looks like it happened because of freeing
packet on which decoding of frame finished and reading next packet.
Solved this two issues by making YUV->RGB conversion as soon as
frame was decoded in ffmpeg_decode_video_frame (such postprocessing
used to happen in callee of this function ffmpeg_fetchibuf), so now
sws_scale would be called before freeing packet on which decoding of
frame finished and it wouldn't be called in cases when decoding of
frame failed.
If decoding of frame failed, it'll be black ibuf returned to the sequencer.
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- Fixed inconsistent data type used for pts number in ffmpeg_fetchibuf
and stored in timecode structure. Not really issue for "correct" movie files,
but probably can help for "broken" one
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'Unknown fileformat'.
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http://markmail.org/message/fp7ozcywxum3ar7n
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size is known.
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It helped to make things works better for some movies but it
didn't help proxies to work properly. Correct fix seems a bit larger
and better not be made atm, so to keep behavior of proxies and
original movie consistent keep resolution behaves like it was before
recent changes,
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- Display running job template in all sequencer modes
It was displayed only for sequencer mode without preview.
- Fixed proxy rebuild progress indicator
It was alsways zero because of incorrect rounding.
- Fixed timecode saving on windows (and probably some other platforms)
It was caused by incorrect opening file for writting -- it should
be opened in binary format "wb". This error caused incorrect
movie duration detection on windows.
- Fixed movie resolution detection for some movies.
In file attached to report, Blender detected resolution 1920x1088
instead of 1920x1080. Not sure if this fix is correct or it's
issue in FFmpeg, but it's something what mplayer using: store
width/height before running avcodec_open().
- Fixed frame number calculation when building timecodes.
It was rounding error caused some frames be positioned incorrect
in several cases (that each 6th frame rendered as next frame
from report).
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This patch adds:
* support for proxy building again (missing feature from Blender 2.49)
additionally to the way, Blender 2.49 worked, you can select several
strips at once and make Blender build proxies in the background (using
the job system)
Also a new thing: movie proxies are now build into AVI files, and
the proxy system is moved into ImBuf-library, so that other parts
of blender can also benefit from it.
* Timecode support: to fix seeking issues with files, that have
a) varying frame rates
b) very large GOP lengths
c) are broken inbetween
d) use different time code tracks
the proxy builder can now also build timecode indices, which are
used (optionally) for seeking.
For the first time, it is possible, to do frame exact seeking on
all file types.
* Support for different video-streams in one video file (can be
selected in sequencer, other parts of blender can also use it,
but UI has to be added accordingly)
* IMPORTANT: this patch *requires* ffmpeg 0.7 or newer, since
older versions don't support the pkt_pts field, that is essential
for building timecode indices.
Windows and Mac libs are already updated, Linux-users have to build
their own ffmpeg verions until distros keep up.
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also fixed possible & unlikely buffer overflow.
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Added central compatibility header file, which enables blender to compile
against very old ffmpeg versions as well as very new versions using the
*NEW* API. (Old API functions are simulated using macros and inline functions)
Added a whole lot of additional checks, tested against 6 different versions
down the timeline, hopefully, now finally all is well.
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Fixed and added additional ffmpeg cruft checking. Oh dear.
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* removed a lot of old cruft code for ancient ffmpeg versions
* made it compile again against latest ffmpeg / libav GIT
(also shouldn't break distro ffmpegs, since those API changes
have been introduced over a year ago. If it nevertheless breaks,
please send me an email)
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