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Commit Graph

8 Commits (20b0d24c2f7ae86cebeb17399a2fea3a7e3d0f69)

Author	SHA1	Message	Date
Andreas Rheinhardt	b43e946b71	avcodec/mqc: Hardcode tables to save space ... mqc currently initializes three arrays at runtime; each of them has 2 * 47 elements, one is uint16_t, two are uint8_t, so that their combined size is 8 * 47. The source data for these initializations is contained in an array of 47 elements of size six. Said array is only used in order to initialize the other arrays, so the savings are just 2 * 47B. Yet this is dwarfed by the size of the code for performing the initializations: It is 109B (GCC 10.2, x64, -O3 albeit in an av_cold function); this does not even include the size of the code in the callers. So just hardcode these tables. This also fixes a data race, because the encoder always initialized these tables during init, although they might already be used at the same time by already running encoder/decoder instances. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>	4 years ago
Diego Biurrun	fe4d5fe936	jpeg2000: Mark static data init functions as av_cold	11 years ago
Nicolas Bertrand	f56fe04de3	jpeg2000: Initialize only once mqc arrays ... Improves decoding speed. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Nicolas Bertrand	dd1382ac95	jpeg2000: Initialize only once mqc arrays ... Increases encoding and decoding speed Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Nicolas Bertrand	c81a706381	JPEG 2000 decoder for DCinema ... Based on the 2007 GSoC project from Kamil Nowosad <k.nowosad@students.mimuw.edu.pl> Updated to current programming standards, style and many more small fixes by Diego Biurrun <diego@biurrun.de>. Signed-off-by: Diego Biurrun <diego@biurrun.de>	12 years ago
Kamil Nowosad	83654c7b1b	Add Kamil Nowosads j2k code. ... This needs work but it should not rot in soc svn.	14 years ago