FFmpeg

Commit Graph

Author	SHA1	Message	Date
Vitor Sessak	b6c7758168	Move constant multiplication out of the loop Originally committed as revision 15404 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Vitor Sessak	e60daa340b	Cosmetics: move convolve() together with the other DSP functions Originally committed as revision 15403 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Vitor Sessak	a987a126fd	Simplify: move division by constant off the loop Originally committed as revision 15402 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Michael Niedermayer	645a6be1e7	Merge the 2 lpc loops. This changes the output by (stddev: 0.21 PSNR:109.51, file:ddinterview28.ra), the changes are due to float rounding inaccuracies and do not happen if doubles are used. Originally committed as revision 15394 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Michael Niedermayer	571bbaf814	Factorize lpc code slightly. Originally committed as revision 15393 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Vitor Sessak	faf6d6964b	Use SAMPLE_FMT_FLT instead of doing the float->int conversion in the decoder. This changes the output very little and any difference should be inaudible. Originally committed as revision 15343 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Vitor Sessak	9547cadb8d	Cosmetics: line breaks Originally committed as revision 15308 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Vitor Sessak	111734de09	Simplify: use a single history buffer for gain and a single one for speech instead of having two for each in the context. Originally committed as revision 15307 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Vitor Sessak	9c10ab6cd1	Cosmetics: align spec references Originally committed as revision 15300 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Vitor Sessak	5381a00a2b	Rename function: s/colmult/apply_window/ Originally committed as revision 15299 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Diego Biurrun	36b3e36e00	misc spelling/wording/grammar fixes Originally committed as revision 15296 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Vitor Sessak	fd8897e803	Convert table to integer. Originally committed as revision 15292 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Vitor Sessak	1be0fc2909	Avoid duplicating compute_lpc_coefs() function in both the RA288 and AAC decoders. Originally committed as revision 15193 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Vitor Sessak	8089c652a7	Check *data_size in decode_frame() Originally committed as revision 14636 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	5991704634	Cosmetics: alignment Originally committed as revision 14635 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	e3751aa6ec	Flip (by making buf[i] -> buf[size-i-1]) two buffers: {sp,gain}_block. This needs duplicating a few loops, but now the code is clearer. Originally committed as revision 14634 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	6888b4fcec	Rename prodsum() function to convolve() Originally committed as revision 14615 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 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
Vitor Sessak	4ca7e74c1f	Do not declare a counter as unsigned when it is not needed Originally committed as revision 14469 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	4e33ed368a	Cosmetics: rename loop counter vars to i,j Originally committed as revision 14468 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	045e21cc19	Cosmetics: new line Originally committed as revision 14457 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	e7e4f476c0	Remove the now useless phase variable from context Originally committed as revision 14456 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	c749f3db98	Cosmetics: make comment match var name Originally committed as revision 14454 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	6509507fad	Cosmetics: align comments Originally committed as revision 14453 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	f285e6dd31	Rename two context vars: s/sb/sp_block/, s/lhist/gain_block/ Originally committed as revision 14452 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	36826ee0df	Declare temporary buffers to be only of the necessary size Originally committed as revision 14451 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	5e707c5905	Remove redundant comments Originally committed as revision 14450 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	c6ad13044a	Cosmetics: do not align with now removed next instruction Originally committed as revision 14449 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	2c46367163	Cosmetics: remove braces and useless newline Originally committed as revision 14448 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	2b356efec2	Change the way the input is passed to do_hybrid_filter(). Before, in[0] was the oldest input sample passed and in[n-1] was the latest. Now it is the contrary. This allows making backward_filter() somewhat simpler. Originally committed as revision 14447 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	aed39f6c02	Remove RA288Context.output buffer. This buffer is just RA288Context.sb backwards (output[i] == sb[N-i], where N is the buffer length). This makes the code slower, this will be fixed in my next commit. Originally committed as revision 14446 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	b26d320583	Add a few comments pointing to the G.728 specification Originally committed as revision 14444 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	854ce441c3	Remove the history buffer from the context. It can easily be evaluated from the lhist buffer. Originally committed as revision 14443 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	0143ec2a7e	Rename two context buffers: pr{1,2} -> {sp,gain}_lpc. Also add a few doxy comments. Originally committed as revision 14437 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	59da0390dc	Remove st1 and st2 temporary buffers in backward_filter() and use instead RA288Context.pr{1,2}. Note that the pr{1,2} buffers are one unity smaller than the st{1,2} buffers. My guess is that the original coder decided to add one to the array sizes "just to be sure". Originally committed as revision 14435 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	3df136d438	Change slightly the meaning of RA288Context.phase. This allows to remove two intermediary buffers and avoid a few memcpy's. Originally committed as revision 14432 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	f42eb5715d	Remove st1 and st2 variables from context, since they could be just local vars Originally committed as revision 14421 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	272d258ab9	Rename st{1,2}{a,b} context variables to more meaningful names: {sp,gain}_{rec,hist} Originally committed as revision 14420 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	efa86ebe4c	Cosmetics: remove useless parenthesis Originally committed as revision 14418 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	e07c5ade5e	Move colmult() function to the beginning of file to group DSP-related functions. Originally committed as revision 14417 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	5af20c207e	Remove an useless comment describing colmult() Originally committed as revision 14416 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	d899014ee2	Remove an useless comment describing prodsum() Originally committed as revision 14415 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	952a980d75	Give the context variables of ra288 a better name: s/glob/ractx/ Originally committed as revision 14414 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	029e1c01b5	Give the context structure of ra288 a better name: s/Real288_internal/RA288Context/ Originally committed as revision 14413 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	a53b545068	Cosmetics: grammar nits Originally committed as revision 14368 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	2477d60944	Rename update() function to backward_filter() and add a doxy comment Originally committed as revision 14364 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	a6755f8d53	Rename and comment bandwidth broadening tables (s/table1a/syn_bw_tab/, s/table2a/gain_bw_tab/). Originally committed as revision 14363 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	5e65f5df0e	Follow FFmpeg convention of returning negative values on error in eval_lpc_coeffs() Originally committed as revision 14362 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	a3896c6377	Rename pred() to eval_lpc_coeffs() and add a doxy comment Originally committed as revision 14361 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Vitor Sessak	a0cce1587b	Give windowing tables a more descriptive name (s/table1/syn_window/, s/table2/gain_window/). Originally committed as revision 14360 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago

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109 Commits (05b90fc0c59aaac40af484f3d5a617a0404b1b4e)