On 4/27/2016 2:19 PM, foo86 wrote: > This moves several DCA tables around in preparation and adds decoder for DTS > Express (LBR) format that is typically used for secondary audio tracks on BDs. > > Current implementation supports decoding mono, stereo and 5.1 tracks at > maximum > sampling rate of 48 kHz. LFE decoding is only supported for 48 kHz tracks. 5.1 > tracks with embedded stereo downmix only decode the downmix because embedded > channel set (ECS) processing is not supported (too annoying to implement for > such obscure feature). > > Decoder works reasonably well for various samples I've tested and is already > quite fast: mono LBR track decodes around 1.8k times faster that realtime > here.
Can those samples be used to make fate tests? > > foo86 (5): > avcodec/dcaenc: reuse shared quant levels table > avcodec/dcaenc: move channel reordering tables to dcaenc.h > avcodec/dca: move huffman data into separate object file > avcodec/dca: move channel counter utility into dca.h > avcodec/dca: add DTS Express (LBR) decoder Consider also sending a patch to add yourself as maintainer of dcadec (See the MAINTAINERS file). And if you do you should also ask Michael to get push access to the git repo. > > Changelog | 1 + > libavcodec/Makefile | 4 +- > libavcodec/dca.h | 28 + > libavcodec/dca_core.c | 70 +- > libavcodec/dca_core.h | 2 +- > libavcodec/dca_exss.c | 9 +- > libavcodec/dca_lbr.c | 1858 > +++++++++++++++++++++++++++++++++++++++++++++++++ > libavcodec/dca_lbr.h | 130 ++++ > libavcodec/dcadata.c | 495 +++++++++++-- > libavcodec/dcadata.h | 47 +- > libavcodec/dcadec.c | 26 +- > libavcodec/dcadec.h | 5 +- > libavcodec/dcadsp.c | 27 + > libavcodec/dcadsp.h | 4 + > libavcodec/dcaenc.c | 14 +- > libavcodec/dcaenc.h | 45 +- > libavcodec/dcahuff.c | 1337 +++++++++++++++++++++++++++++++++++ > libavcodec/dcahuff.h | 1046 +--------------------------- > 18 files changed, 3998 insertions(+), 1150 deletions(-) > create mode 100644 libavcodec/dca_lbr.c > create mode 100644 libavcodec/dca_lbr.h > create mode 100644 libavcodec/dcahuff.c > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
