On Thu, Aug 03, 2023 at 06:26:16PM +0200, Lynne wrote: > These are in-place transforms, required for DCT-I and DST-I. > > Templated as the mod2 variant requires minor modifications, and is > required specifically for DCT-I/DST-I. > > Quite optimized, as there's no need for any additional buffer storage. >
> doc/APIchanges | 3 > libavutil/tx.c | 18 ++++ > libavutil/tx.h | 10 ++ > libavutil/tx_template.c | 175 > +++++++++++++++++++++++++++++++++++++----------- > libavutil/version.h | 2 > 5 files changed, 167 insertions(+), 41 deletions(-) > 6e6308365cd78a84c7db5800207e6b5977945079 > 0001-lavu-tx-add-real-to-real-and-real-to-imaginary-RDFT-.patch > From 2ea5e2541c2551bf1b56e967d35946289a85aa49 Mon Sep 17 00:00:00 2001 > From: Lynne <d...@lynne.ee> > Date: Thu, 3 Aug 2023 18:21:23 +0200 > Subject: [PATCH 1/2] lavu/tx: add real to real and real to imaginary RDFT > transforms > > These are in-place transforms, required for DCT-I and DST-I. > > Templated as the mod2 variant requires minor modifications, and is > required specifically for DCT-I/DST-I. not sure if i forgot some patch but this seems to break fate-binkaudio-dct make V=2 fate-binkaudio-dct -j32 ... [bink @ 0x559fc8d8dcc0] Failed to open codec in avformat_find_stream_info [bink @ 0x559fc8d8dcc0] Packet corrupt (stream = 0, dts = NOPTS). [bink @ 0x559fc8d8dcc0] Failed to open codec in avformat_find_stream_info [bink @ 0x559fc8d8dcc0] Could not find codec parameters for stream 1 (Audio: binkaudio_dct, 44000 Hz, 0 channels, fltp): unspecified number of channels Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options Input #0, bink, from 'fate/fate-suite//bink/binkaudio_dct.bik': Duration: 00:00:08.87, start: 0.000000, bitrate: 183 kb/s Stream #0:0[0x0]: Video: binkvideo (BIKi / 0x694B4942), yuv420p(tv), 640x480, 30 fps, 30 tbr, 30 tbn Stream #0:1[0x0]: Audio: binkaudio_dct, 44000 Hz, stereo, fltp [aist#0:1/binkaudio_dct @ 0x559fc8d93080] Error while opening decoder: Function not implemented [aost#0:0/pcm_s16le @ 0x559fc8de5c40] Error initializing a simple filtergraph Error opening output file -. Error opening output files: Function not implemented threads=1 tests/Makefile:308: recipe for target 'fate-binkaudio-dct' failed make: *** [fate-binkaudio-dct] Error 218 [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Nations do behave wisely once they have exhausted all other alternatives. -- Abba Eban
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