FFmpeg

Commit Graph

Author	SHA1	Message	Date
Loren Merritt	1cfe393a25	doxy comment tweaks Originally committed as revision 8580 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Guillaume Poirier	bb21f1762a	Add doxy comments, based on Loren's explanations posted here: Date: Mar 30, 2007 9:00 PM Subject: Re: [Ffmpeg-devel] Motion Estimation in snow.c for Waevelet encoded frames (DWT) Originally committed as revision 8579 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Reimar Döffinger	f66e4f5f9e	Add av_ prefix to clip functions Originally committed as revision 8122 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Michael Niedermayer	d951bb9a5c	test DIRECT{0,0} too if flag mv0 is used slight PSNR/bitrate increase Originally committed as revision 7361 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Michael Niedermayer	2175b80bed	simplify Originally committed as revision 7345 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Michael Niedermayer	3b9cf3bdb3	i think this if() is useless lets abuse our users to test this ;) Originally committed as revision 7344 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Michael Niedermayer	2f16af0667	skip motion estimation and encoding of non direct-0,0 MBs if the next MB is skiped (mpeg4 doesnt allow such MBs and in the past we did ME and encoding until at the end we droped them, so this should be faster though i didnt benchmark it, benchmark welcome) Originally committed as revision 7343 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Michael Niedermayer	95cefcb4ed	10l Originally committed as revision 7328 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Michael Niedermayer	af6a403a05	warn user if the selected diamond size is larger then the motion estimation score cache size Originally committed as revision 7326 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Michael Niedermayer	a6daaf7cce	limit x/ymin/max to me_range slight psnr/bitrate gain for most but not all files if me_range is used Originally committed as revision 7325 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Guillaume Poirier	e828d257e7	Doxygen comments about variables described by Michael here: Date: Tue, 12 Dec 2006 14:00:54 +0100 Subject: Re: [Ffmpeg-cvslog] r6876 - trunk/libavcodec/motion_est.c Originally committed as revision 7288 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Måns Rullgård	849f10351d	rename always_inline to av_always_inline and move to common.h Originally committed as revision 7256 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Diego Biurrun	c6c367254f	spelling cosmetics: cliped --> clipped Originally committed as revision 7208 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Michael Niedermayer	dd7e46e7c3	new I/P frame selection heuristic PSNR/bitrate is slightly better for my (short) test videos more tests welcome ... Originally committed as revision 6876 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Michael Niedermayer	95da34cd54	CANDIDATE_MB_TYPE_INTER heuristic doesnt work at really low quality where the distortion becomes less relevant then the overhead of intra blocks Originally committed as revision 6829 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Diego Biurrun	c26abfa541	Rename ABS macro to FFABS. Originally committed as revision 6666 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Diego Biurrun	b78e7197a8	Change license headers to say 'FFmpeg' instead of 'this program/this library' and fix GPL/LGPL version mismatches. Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Marco Manfredini	8226ecaa6c	Fix CHECK_BIDIR macro so it works with Intel's Compiler Patch by Marco Manfredini mldb A gmx P net Originally committed as revision 5989 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Michael Niedermayer	8437ff75f8	asserts to check if assumed conditions really are true Originally committed as revision 5143 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Steve L'Homme	267f7edcd1	(f)printf --> av_log conversion taken from a patch by Steve L'Homme Originally committed as revision 5127 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Corey Hickey	39a64e3023	sc_factor support for encoding. Here's the description I'll add to the mplayer man page: --- Causes frames with higher quantizers to be more likely to trigger a scene change detection and make libavcodec use an I-frame (default: 1). 1-16 is a sane range. Values between 2 and 6 may yield increasing PSNR (up to approximately 0.04 dB) and better placement of I-frames in high-motion scenes. Higher values than 6 may give very slightly better PSNR (approximately 0.01 dB more than sc_factor=6), but noticably worse visual quality. --- Original idea from Michael; patch by me. Originally committed as revision 4883 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Diego Biurrun	5509bffa88	Update licensing information: The FSF changed postal address. Originally committed as revision 4842 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Loren Merritt	8bf755d4ff	10l: bidir_refine didn't save the new mvs. also improve speed. Originally committed as revision 4832 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Michael Niedermayer	aaaa6f1549	dont discard least significant bits Originally committed as revision 4773 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Michael Niedermayer	aacb6acc8a	hmm did i mess the scaling of these up at some point? anyway, this change decreases bitrate and increase PSNR by ~1.00 on my test file, other files also benefit significantly Originally committed as revision 4771 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Michael Niedermayer	d4f0c2fcc3	10l (segfault fix) Originally committed as revision 4769 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Michael Niedermayer	316a2ec84c	bidir refine support Originally committed as revision 4768 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Michael Niedermayer	377798d6bd	minor typo Originally committed as revision 4767 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Diego Biurrun	bb270c0896	COSMETICS: tabs --> spaces, some prettyprinting Originally committed as revision 4764 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Diego Biurrun	115329f160	COSMETICS: Remove all trailing whitespace. Originally committed as revision 4749 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Michael Niedermayer	95ae72b7e0	Compilation fixes part 1 patch by (Arvind R. and Burkhard Plaum, plaum, ipf uni-stuttgart de) Originally committed as revision 4540 to svn://svn.ffmpeg.org/ffmpeg/trunk	20 years ago
Måns Rullgård	bf4e3bd2d0	kill a bunch of compiler warnings Originally committed as revision 4522 to svn://svn.ffmpeg.org/ffmpeg/trunk	20 years ago
Michael Niedermayer	0cc64d3d1c	fix assertion failure for mpeg2 encoding Originally committed as revision 4488 to svn://svn.ffmpeg.org/ffmpeg/trunk	20 years ago
Michael Niedermayer	2f300f8965	motion vector limit for mpeg2 Originally committed as revision 4482 to svn://svn.ffmpeg.org/ffmpeg/trunk	20 years ago
Diego Biurrun	bb628dae44	spelling fixes patch by Peter Robinson pbrobinson @ at @ gmail . dot . com and myself Originally committed as revision 4382 to svn://svn.ffmpeg.org/ffmpeg/trunk	20 years ago
Michael Niedermayer	725de25c4c	fix segfault with 'ffmpeg -i 1.avi -cmp 257 -4mv 2.avi' Originally committed as revision 4178 to svn://svn.ffmpeg.org/ffmpeg/trunk	20 years ago
Mike Melanson	160d679c07	Ministry of English Composition, reporting for duty (and the word is "skipped", not "skiped"; "skiped" would rhyme with "hyped") Originally committed as revision 4153 to svn://svn.ffmpeg.org/ffmpeg/trunk	20 years ago
Michael Niedermayer	cec1f05fd7	check mb/me_threshold range, fixes assertion failure Originally committed as revision 4082 to svn://svn.ffmpeg.org/ffmpeg/trunk	20 years ago
Måns Rullgård	88730be651	kill warnings patch by (Måns Rullgård <mru inprovide com>) Originally committed as revision 3977 to svn://svn.ffmpeg.org/ffmpeg/trunk	20 years ago
Michael Niedermayer	096c3b7e90	overflow fix Originally committed as revision 3685 to svn://svn.ffmpeg.org/ffmpeg/trunk	20 years ago
Michael Niedermayer	1c3990dbba	H.261 encoder by (Maarten Daniels <maarten dot daniels at luc dot ac dot be>) Originally committed as revision 3643 to svn://svn.ffmpeg.org/ffmpeg/trunk	20 years ago
Michael Niedermayer	7494cac0fd	fix constrained parameters flag Originally committed as revision 3609 to svn://svn.ffmpeg.org/ffmpeg/trunk	20 years ago
Michael Niedermayer	155ec6edf8	quad tree based motion compensation (currently only 16x16 & 8x8 OBMC blocks, but can be extended to other block sizes easily) different intra block coding (previous was just an ugly hack) 1.8% bitrate reduction -0.01PSNR (foreman@352x288 qscale=8) 1.5% bitrate reduction +0.05PSNR (foreman@352x288 qscale=1) Originally committed as revision 3416 to svn://svn.ffmpeg.org/ffmpeg/trunk	21 years ago
Michael Niedermayer	26efc54e4a	4x4 SSE compare function wavelet based compare functions make epzs_motion_search() more flexible so it can be used for a wider range of block sizes make get_penalty_factor() independant of MpegEncContext Originally committed as revision 3410 to svn://svn.ffmpeg.org/ffmpeg/trunk	21 years ago
Michael Niedermayer	dbc56b3914	chroma me fix Originally committed as revision 3216 to svn://svn.ffmpeg.org/ffmpeg/trunk	21 years ago
Michael Niedermayer	ae1dbde1cf	clip input motion vectors be somewhat more tollerant on invalid input return INT_MAX instead of -1 for unuseable mv/mb types as that ensures nicely that they arent used initalize limits earlier for b frames a few more asserts to check for out of picture vectors Originally committed as revision 3213 to svn://svn.ffmpeg.org/ffmpeg/trunk	21 years ago
Michael Niedermayer	d4c5d2adf3	nsse weight Originally committed as revision 3205 to svn://svn.ffmpeg.org/ffmpeg/trunk	21 years ago
Michael Niedermayer	e6a2ac3474	noise preserving sum of squares comparission function Originally committed as revision 3204 to svn://svn.ffmpeg.org/ffmpeg/trunk	21 years ago
Michael Niedermayer	0e9d4a67f4	change qscale -> lambda for the motion estimation finetune bit/distortion weighting factor used in motion estimation, the old coeffs where finetuned relative to incorrect mv_penalty tables which where then fixed later but the coeffs where not this _may_ fix the long standing blocking artifacts, but may also introduce mudding artefacts theoretically, so please tell us if u stumble across any so we can either fix them or export this variable so the user can change it Originally committed as revision 3189 to svn://svn.ffmpeg.org/ffmpeg/trunk	21 years ago
Michael Niedermayer	1f202b0d46	moving motion estimation specific variables from MpegEncContext -> MotionEstContext Originally committed as revision 3124 to svn://svn.ffmpeg.org/ffmpeg/trunk	21 years ago

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140 Commits (f87462ccef6c750ddd94793af52e2a107279bc17)