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118 Commits

Author SHA1 Message Date
Måns Rullgård
0b37cccaab ra288: convert VLAs to fixed size 
Originally committed as revision 23832 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-06-27 19:30:31 +00:00
Ronald S. Bultje
b1078e9fe6 Move clipping of audio samples (for those codecs outputting float) from decoder 
to the audio conversion routines.

Originally committed as revision 22937 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-21 17:57:48 +00:00
Stefano Sabatini
72415b2adb Define AVMediaType enum, and use it instead of enum CodecType, which 
is deprecated and will be dropped at the next major bump.

Originally committed as revision 22735 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-30 23:30:55 +00:00
Stefano Sabatini
9106a698e7 Rename bitstream.h to get_bits.h. 
Originally committed as revision 18494 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-13 16:20:26 +00:00
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
 2009-04-07 15:59:50 +00:00
Vitor Sessak
66d4c62806 Do not reimplement ff_celp_lp_synthesis_filterf(). 
Originally committed as revision 17562 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-02-24 18:11:42 +00:00
Vitor Sessak
08c433972e Use ff_dot_productf() in ra288.c 
Originally committed as revision 15757 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-10-30 22:24:40 +00:00
Vitor Sessak
d552d04dc9 Simplify: avoid duplication backward_filter() 
Originally committed as revision 15428 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-09-26 18:42:06 +00:00
Vitor Sessak
64e4af2ac1 Do instead of divising a float by a constant, multiply by its inverse 
Originally committed as revision 15417 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-09-25 20:03:57 +00:00
Vitor Sessak
b6c7758168 Move constant multiplication out of the loop 
Originally committed as revision 15404 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-09-24 20:31:24 +00:00
Vitor Sessak
e60daa340b Cosmetics: move convolve() together with the other DSP functions 
Originally committed as revision 15403 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-09-24 20:05:22 +00:00
Vitor Sessak
a987a126fd Simplify: move division by constant off the loop 
Originally committed as revision 15402 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-09-24 20:03:58 +00:00
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
 2008-09-23 23:16:48 +00:00
Michael Niedermayer
571bbaf814 Factorize lpc code slightly. 
Originally committed as revision 15393 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-09-23 22:49:22 +00:00
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
 2008-09-17 19:26:37 +00:00
Vitor Sessak
9547cadb8d Cosmetics: line breaks 
Originally committed as revision 15308 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-09-13 16:56:58 +00:00
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
 2008-09-13 16:49:05 +00:00
Vitor Sessak
9c10ab6cd1 Cosmetics: align spec references 
Originally committed as revision 15300 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-09-11 19:10:26 +00:00
Vitor Sessak
5381a00a2b Rename function: s/colmult/apply_window/ 
Originally committed as revision 15299 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-09-11 19:06:54 +00:00
Diego Biurrun
36b3e36e00 misc spelling/wording/grammar fixes 
Originally committed as revision 15296 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-09-11 08:13:23 +00:00
Vitor Sessak
fd8897e803 Convert table to integer. 
Originally committed as revision 15292 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-09-10 19:00:02 +00:00
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
 2008-09-04 11:03:14 +00:00
Vitor Sessak
8089c652a7 Check *data_size in decode_frame() 
Originally committed as revision 14636 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-06 03:00:15 +00:00
Vitor Sessak
5991704634 Cosmetics: alignment 
Originally committed as revision 14635 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-06 02:49:22 +00:00
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
 2008-08-06 02:44:59 +00:00
Vitor Sessak
6888b4fcec Rename prodsum() function to convolve() 
Originally committed as revision 14615 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-05 04:52:33 +00:00
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
 2008-07-31 10:47:31 +00:00
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
 2008-07-29 18:22:31 +00:00
Vitor Sessak
4e33ed368a Cosmetics: rename loop counter vars to i,j 
Originally committed as revision 14468 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-07-29 18:20:49 +00:00
Vitor Sessak
045e21cc19 Cosmetics: new line 
Originally committed as revision 14457 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-07-28 10:49:44 +00:00
Vitor Sessak
e7e4f476c0 Remove the now useless phase variable from context 
Originally committed as revision 14456 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-07-28 10:49:14 +00:00
Vitor Sessak
c749f3db98 Cosmetics: make comment match var name 
Originally committed as revision 14454 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-07-28 05:18:39 +00:00
Vitor Sessak
6509507fad Cosmetics: align comments 
Originally committed as revision 14453 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-07-28 05:16:51 +00:00
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
 2008-07-28 04:53:05 +00:00
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
 2008-07-28 04:37:58 +00:00
Vitor Sessak
5e707c5905 Remove redundant comments 
Originally committed as revision 14450 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-07-28 04:25:51 +00:00
Vitor Sessak
c6ad13044a Cosmetics: do not align with now removed next instruction 
Originally committed as revision 14449 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-07-28 04:24:08 +00:00
Vitor Sessak
2c46367163 Cosmetics: remove braces and useless newline 
Originally committed as revision 14448 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-07-28 04:07:18 +00:00
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
 2008-07-28 02:55:47 +00:00
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
 2008-07-28 02:53:07 +00:00
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
 2008-07-27 22:22:51 +00:00
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
 2008-07-27 22:21:41 +00:00
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
 2008-07-27 20:58:29 +00:00
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
 2008-07-27 20:55:27 +00:00
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
 2008-07-27 20:35:32 +00:00
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
 2008-07-26 15:14:50 +00:00
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
 2008-07-26 15:10:17 +00:00
Vitor Sessak
efa86ebe4c Cosmetics: remove useless parenthesis 
Originally committed as revision 14418 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-07-26 14:38:29 +00:00
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
 2008-07-26 14:35:50 +00:00
Vitor Sessak
5af20c207e Remove an useless comment describing colmult() 
Originally committed as revision 14416 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-07-26 14:33:53 +00:00