FFmpeg

Commit Graph

Author	SHA1	Message	Date
Siarhei Siamashka	373177949f	Use iMDCT output scaling to simplify ffvorbis and make it slightly faster. Originally committed as revision 18879 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Siarhei Siamashka	7dfed8e1dc	Fix for a problem with inverted sign of output data from ffvorbis decoder. Now the sign of audio samples in ffvorbis output is the same as in original uncompressed audio file and this also allows the use of tiny_psnr to compare ffvorbis with libvorbis/tremor. Originally committed as revision 18878 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Siarhei Siamashka	7d485f165f	Support for getting (i)MDCT output multiplied by a constant scaling factor. Scaling (i)MDCT output has no runtime overhead and can be used to improve performance of audio codecs. All the changes are only needed in 'ff_mdct_init' function and slow down initialization a bit. Originally committed as revision 18855 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Siarhei Siamashka	460c0abfbb	Fix for issue #829 ("ffvorbis outputs crackling sound, libvorbis plays fine") This was off-by-one bug which affects floor0 encoded files. Tracked down by valgrind (was reported as the use of uninitialized memory). With this patch applied, tiny_psnr now reports the following when ffvorbis is compared to libvorbis-1.0beta4 output for 'lsp-test.ogg' sample: stddev: 0.76 PSNR: 98.69 bytes: 3498380/ 3498452 Output from libvorbis-1.2 is substantially different: stddev: 132.57 PSNR: 53.87 bytes: 3498424/ 3498496 Originally committed as revision 18821 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Stefano Sabatini	9106a698e7	Rename bitstream.h to get_bits.h. Originally committed as revision 18494 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Thilo Borgmann	7a00bbad21	Implement avcodec_decode_video2(), _audio3() and _subtitle2() which takes an AVPacket argument rather than a const uint8_t *buf + int buf_size. This allows passing of packet-specific flags from demuxer to decoder, such as the keyframe flag, which appears necessary to playback corePNG P-frames. Patch by Thilo Borgmann thilo.borgmann googlemail com, see also the thread "Google Summer of Code participation" on the mailinglist. Originally committed as revision 18351 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Diego Biurrun	bad5537e2c	Use full internal pathname in doxygen @file directives. Otherwise doxygen complains about ambiguous filenames when files exist under the same name in different subdirectories. Originally committed as revision 16912 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Oded Shimon	05dee1b7df	Rename all vorbis encoder related typedefs to not use _t for POSIX compatibility Originally committed as revision 16076 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Carl Eugen Hoyos	c8562a6fda	Fix memleak for currupt input. Originally committed as revision 15507 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Siarhei Siamashka	9d2b5cf2e0	Interleaved forward/backward channels processing in order to increase chances of stepping on already cached data for the cores with extremely small data cache. Patch by Siarhei Siamashka: name dot surname at gmail Originally committed as revision 15493 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Michael Niedermayer	c541e668f6	Optimize vorbis_residue_decode() so that vr->type is a constant. Based on a patch by Siarhei Siamashka. Originally committed as revision 15134 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Loren Merritt	d46ac5bfde	mdct wrapper function to match fft Originally committed as revision 14703 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Loren Merritt	46803f4f67	optimize imdct_half: remove tmp buffer. skip fft reinterleave pass, leaving data in a format more convenient for simd. merge post-rotate with post-reorder. Originally committed as revision 14700 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Peter Ross	fd76c37fd9	Modify all codecs to report their supported input and output sample format(s). Originally committed as revision 14482 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Loren Merritt	8a37920c9e	r14205 broke vorbis float_to_int on ppc Originally committed as revision 14466 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Loren Merritt	5eb0f2a425	float_to_int16_interleave: change src to an array of pointers instead of assuming it's contiguous. this has no immediate effect, but will allow it to be used in more codecs. Originally committed as revision 14252 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Loren Merritt	633d9def9d	vorbis: reduce memory by reusing buffers Originally committed as revision 14251 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Loren Merritt	1a32536737	unroll another common case in vorbis_residue_decode Originally committed as revision 14250 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Loren Merritt	b9fa32082c	exploit mdct symmetry 2% faster vorbis on conroe, k8. 7% on celeron. Originally committed as revision 14207 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Loren Merritt	f27e1d645e	simplify vorbis windowing Originally committed as revision 14205 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Michael Niedermayer	da95f225fd	Set frame_size to the gcd of what the decoder can output. Originally committed as revision 13971 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Stefano Sabatini	fe4bf37455	Make AVCodec long_names definition conditional depending on CONFIG_SMALL. Originally committed as revision 13759 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Diego Biurrun	a5c0969a33	Remove one more set of useless parentheses from a return call. Originally committed as revision 13070 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Stefano Sabatini	d5202e4fda	Add long names to many AVCodec declarations. patch by Stefano Sabatini, stefano.sabatini-lala poste it Originally committed as revision 13005 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Zuxy Meng	98a6fff98c	Apply 'cold' attribute to init/uninit functions in libavcodec Originally committed as revision 12525 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Michael Niedermayer	8c4bd28bec	const Originally committed as revision 11786 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Benoit Fouet	1234585fac	Initialize "saved" buffer to zero. Patch by Vincent Penné vpenne wyplay com and Denes Balatoni Originally committed as revision 11393 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Michael Niedermayer	90901860c2	stupid code (casting of void*) found by checktree.sh Originally committed as revision 11117 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Michael Niedermayer	e14356c895	fix issue130 Originally committed as revision 10888 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Alex Beregszaszi	7ae7300ee3	use skip_bits where appropriate Originally committed as revision 10004 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Alex Beregszaszi	5fc32c275e	use get_bits1(..) instead get_bits(.., 1) Originally committed as revision 9999 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Denes Balatoni	975741e79c	Don't segfault if an empty codebook gets used. Patch by Denes Balatoni: [ dbalatoni interware hu ] Original thread: [Ffmpeg-devel] [PATCH/BUGREPORT] crash in vorbis decoder date: 02/04/2007 11:08 PM Originally committed as revision 9711 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Diego Biurrun	e5a389a1b7	license header consistency cosmetics Originally committed as revision 9484 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Aurelien Jacobs	07c55d8ea3	rename vorbis.c to vorbis_dec.c and vorbis_common.c to vorbis.c Originally committed as revision 8981 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Aurelien Jacobs	f6bd6eeffd	loosen vorbis_enc.c dependencies by spliting vorbis.c Originally committed as revision 8980 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Aurelien Jacobs	5bb127a98f	extract vorbis header spliting code into a reusable function Original thread: Date: Thu, 22 Mar 2007 20:23:08 -0400 Subject: [Ffmpeg-devel] [PATCH] Theora in MKV (GSoC '07 Qualification) Originally committed as revision 8505 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Måns Rullgård	36cd306907	rename inverse -> ff_inverse Originally committed as revision 6990 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
Oded Shimon	7f09a56091	remove render_line from vorbis.h, add ff_vorbis_floor1_render_list instead Originally committed as revision 6409 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Oded Shimon	6c29d7c8f3	make some more functions global so they can be shared with vorbis_enc.c Originally committed as revision 6402 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Oded Shimon	9f963af5a0	make ready_floor1_list() shared for vorbis_enc.c Originally committed as revision 6401 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Oded Shimon	cc0ba5a58f	vorbis.h -> vorbis_data.c move tables from vorbis.h to a C file so they can be used later in vorbis_enc.c Originally committed as revision 6398 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Reimar Döffinger	544c449d12	Get rid of get_bits_long_le, get_bits_long was fixed and now behaves the same way. Originally committed as revision 6334 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Oded Shimon	0e3cb7a1ff	fix to vorbis decoder for book==0 Originally committed as revision 6328 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Diego Biurrun	b7cff9ce7c	Remove unused variable. Originally committed as revision 6223 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Loren Merritt	069720565c	vorbis simd tweaks Originally committed as revision 5983 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Loren Merritt	0e0adae0ba	vorbis cosmetics: mdct0,mdct1 => mdct[2] Originally committed as revision 5978 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Loren Merritt	88db1a15c5	misc tweaks in vorbis_residue_decode(). 4% faster vorbis. Originally committed as revision 5977 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Loren Merritt	eb4825b5d4	sse and 3dnow implementations of float->int conversion and mdct windowing. 15% faster vorbis. Originally committed as revision 5975 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago

34 Commits (be43ae66517272dc2d9e7420df6931e622d9e4bc)