On Mon, Dec 28, 2015 at 04:58:48PM +0000, Rostislav Pehlivanov wrote: > This commit is a work in progress Daala decoder implemented in FFmpeg. > Comments are requested. > > The current decoder is able to decode lossless Daala encoded files (the > output of this decoder is still identical to the output) and Daala > I-frames at any size and quantization level. > > Performance wise, this decoder is around 1.8 times faster than the > reference decoder and is able to open images larger than the > player_example provided with libdaala (which apparently runs out of > memory). > > There's a missing filter so the output will look subjectively blockier > than the reference decoder at higher quantization levels (which blurs > the hell out of any detail, so this decoder looks subjectively a bit > better at higher quantizations by preserving more detail). > > Most of the code here was written using libdaala as a reference, > after optimizing, refactoring and shortening. As such, although very few > lines have been copied directly, the code is still licensed under the > BSD 2-clause like libdaala. Files which are completely original work are > licensed under the same license as FFmpeg. I'm not too concerned about > those, so if people want I wouldn't mind licensing them as a BSD 2-clause > like the rest of the decoder. > > The "what the hell were you thinking" Q&A section: > > Q: What about AOMedia and the IETF? > A: There's a (high) chance that the current libdaala codebase will be > used, and thus this decoder will continue tracking whatever becomes > of libdaala. > > Q: What if libdaala dies and AOMedia/IETF come up with something > completely different (unlikely). > A: This decoder will continue tracking whatever they come up with, after > salvaging all the code that can be reused. It is likely that the files > will be renamed as well as the codec description. The codec ID > (AV_CODEC_ID_DAALA) will still be used to refer to the new codec > since it's already been upstreamed. > > Signed-off-by: Rostislav Pehlivanov <atomnu...@gmail.com> > --- > libavcodec/Makefile | 1 + > libavcodec/allcodecs.c | 1 + > libavcodec/daala.h | 78 ++ > libavcodec/daala_entropy.h | 554 ++++++++++++ > libavcodec/daala_pvq.h | 369 ++++++++ > libavcodec/daala_utils.h | 202 +++++ > libavcodec/daaladec.c | 804 +++++++++++++++++ > libavcodec/daaladsp.c | 2123 > ++++++++++++++++++++++++++++++++++++++++++++ > libavcodec/daaladsp.h | 78 ++ > libavcodec/daalatab.c | 1544 ++++++++++++++++++++++++++++++++ > libavcodec/daalatab.h | 85 ++ > 11 files changed, 5839 insertions(+) > create mode 100644 libavcodec/daala.h > create mode 100644 libavcodec/daala_entropy.h > create mode 100644 libavcodec/daala_pvq.h > create mode 100644 libavcodec/daala_utils.h > create mode 100644 libavcodec/daaladec.c > create mode 100644 libavcodec/daaladsp.c > create mode 100644 libavcodec/daaladsp.h > create mode 100644 libavcodec/daalatab.c > create mode 100644 libavcodec/daalatab.h
this seems to fail building In file included from libavcodec/daaladsp.c:30:0: libavcodec/daalatab.h:48:35: error: no previous prototype for ‘daala_find_p_format’ [-Werror=missing-prototypes] cc1: some warnings being treated as errors make: *** [libavcodec/daaladsp.o] Error 1 In file included from libavcodec/daalatab.c:29:0: libavcodec/daalatab.h:48:35: error: no previous prototype for ‘daala_find_p_format’ [-Werror=missing-prototypes] cc1: some warnings being treated as errors make: *** [libavcodec/daalatab.o] Error 1 In file included from libavcodec/daaladec.c:35:0: libavcodec/daalatab.h:48:35: error: no previous prototype for ‘daala_find_p_format’ [-Werror=missing-prototypes] cc1: some warnings being treated as errors make: *** [libavcodec/daaladec.o] Error 1 make: Target `all' not remade because of errors. [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Frequently ignored answer#1 FFmpeg bugs should be sent to our bugtracker. User questions about the command line tools should be sent to the ffmpeg-user ML. And questions about how to use libav* should be sent to the libav-user ML.
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