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20087 Commits

Author SHA1 Message Date
Justin Ruggles
eeb55f5f2f alac: cosmetics: general pretty-printing and comment clean up 2012-07-19 13:26:48 -04:00
Justin Ruggles
f3e5a7844b alac: calculate buffer size outside the loop in allocate_buffers() 2012-07-19 13:26:48 -04:00
Justin Ruggles
bae83f2c74 alac: change some data types to plain int 2012-07-19 13:26:48 -04:00
Justin Ruggles
2aebac6918 alac: cosmetics: rename some variables and function names 2012-07-19 13:26:48 -04:00
Andrew D'Addesio
1b3ef155d7 alac: multi-channel decoding support 
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
 2012-07-19 13:26:48 -04:00
Justin Ruggles
81c9e2e6d0 alac: split element parsing into a separate function 
This will make multi-channel implementation simpler.
Based partially on a patch by Andrew D'Addesio <modchipv12@gmail.com>.
 2012-07-19 13:26:48 -04:00
Justin Ruggles
cd632619d9 alac: support a read sample size of up to 32 
Use get_bits_long() in decode_scalar().
Use unsigned int for decoded value.
 2012-07-19 13:26:48 -04:00
Justin Ruggles
73dc0db486 alac: output in planar sample format 
Avoids unneeded interleaving and allows for reusing the AVFrame output buffer
as the internal buffer for 24-bit and 32-bit sample size.
 2012-07-19 13:26:48 -04:00
Justin Ruggles
6482bd8831 alac: add 32-bit decoding support 2012-07-19 13:26:48 -04:00
Andrew D'Addesio
6cda74c155 alac: simplify channel interleaving 
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
 2012-07-19 13:26:48 -04:00
Justin Ruggles
5138ff143f alac: use AVPacket fields directly in alac_decode_frame() 2012-07-19 13:26:47 -04:00
Justin Ruggles
7a206eb32f alac: fix check for valid max_samples_per_frame 2012-07-19 13:26:47 -04:00
Justin Ruggles
1193d3fedd alac: use get_sbits() to read LPC coefficients instead of casting 2012-07-19 13:26:47 -04:00
Justin Ruggles
7a50ec6799 alac: move the current samples per frame to the ALACContext 
This will simplify the multi-channel implementation.
 2012-07-19 13:26:47 -04:00
Justin Ruggles
46043962ea alac: avoid using a double-negative when checking if the frame is compressed 2012-07-19 13:26:47 -04:00
Justin Ruggles
9a6c528e08 alac: factor out output_size check in predictor_decompress_fir_adapt() 2012-07-19 13:26:47 -04:00
Justin Ruggles
ebd4c3add1 alac: factor out loading of next decoded sample in LPC prediction 2012-07-19 13:26:47 -04:00
Justin Ruggles
a4ecd41442 alac: use index into buffer_out instead of incrementing the pointer 2012-07-19 13:26:47 -04:00
Justin Ruggles
f2515cd629 alac: simplify lpc coefficient adaptation 2012-07-19 13:26:47 -04:00
Justin Ruggles
abc4376b31 alac: reduce the number of local variables needed in lpc prediction 2012-07-19 13:26:47 -04:00
Justin Ruggles
01880d287b alac: simplify 1st order prediction and reading of warm-up samples 2012-07-19 13:26:46 -04:00
Justin Ruggles
d0c0bf0d3e alac: cosmetics: reindent after last commit 2012-07-19 13:26:46 -04:00
Justin Ruggles
79def4c523 alac: remove unneeded conditionals in predictor_decompress_fir_adapt() 2012-07-19 13:26:46 -04:00
Justin Ruggles
4bcd637dcb alac: use sizeof() instead of hardcoded data sizes 2012-07-19 13:26:46 -04:00
Justin Ruggles
91620a04f1 alac: make block_size signed 
It does not need to be unsigned.
 2012-07-19 13:26:46 -04:00
Justin Ruggles
2fc24b3273 alac: remove a duplicate local variable 2012-07-19 13:26:46 -04:00
Justin Ruggles
5177413d20 alac: conditionally set sign_modifier to 1 
It is already unconditionally set to 0 prior to this, so we can modify it
only when needed.
 2012-07-19 13:26:46 -04:00
Justin Ruggles
7e6593e977 alac: eliminate 2 unneeded local variables in bastardized_rice_decompress() 
x_modified is just unnecessary, and final_val can be removed by simplifying
the unsigned-to-signed conversion.
 2012-07-19 13:26:46 -04:00
Justin Ruggles
6fd8a28b59 alac: adjust conditions for updating entropy decoder history 
avoids some unnecessary arithmetic in certain situations
 2012-07-19 13:26:46 -04:00
Justin Ruggles
a06fdadd97 alac: cosmetics: reindent after last commit 2012-07-19 13:26:46 -04:00
Justin Ruggles
d9837434a9 alac: limit the rice param before passing to decode_scalar() 
reduces the number of parameters to decode_scalar() and slightly simplifies
the code
 2012-07-19 13:26:45 -04:00
Justin Ruggles
6e91f62256 alac: reduce the number of parameters to bastardized_rice_decompress() 
Use the ALACContext fields directly instead.
 2012-07-19 13:26:45 -04:00
Justin Ruggles
836e8b9ba0 alac: cosmetics: rename some ALACContext parameters 2012-07-19 13:26:45 -04:00
Justin Ruggles
2ac1737583 alac: clean up and update comments leftover from reverse-engineering 2012-07-19 13:26:45 -04:00
Clément Bœsch
55ed91c856 threads: fix a potential race spotted by helgrind. 2012-07-19 19:08:36 +02:00
Michael Niedermayer
e03cd1049e Fix misspellings of FFmpeg 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-07-19 18:44:46 +02:00
Mans Rullgard
bf1cf4d5a5 flacdec: reverse lpc coeff order, simplify filter 
Reversing the lpc coefficient order simplifies indexing in
the filter.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2012-07-19 10:21:32 +01:00
Diego Biurrun
9f97af2688 x86: dsputil: drop some unused CPU flag debug code 2012-07-19 10:17:56 +02:00
Michael Niedermayer
204c4e953d Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  ppc: fix build with altivec disabled
  vp3: move idct and loop filter pointers to new vp3dsp context
  build: add CONFIG_VP3DSP, reduce repetition in OBJS lists
  tscc2: do not add/subtract 128 bias during DCT
  tscc2: fix typo in DCT
  configure: clarify external library section of help output
  configure: mark libfdk-aac as nonfree
  configure: cosmetics: drop some unnecessary backslashes
  os_support: K&R formatting cosmetics

Conflicts:
	configure
	libavcodec/vp3.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2012-07-18 22:34:48 +02:00
Michael Niedermayer
31a192f387 imgconvert: favor pixel formats without resolution loss 
Fixes Ticket1517

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-07-18 17:22:17 +02:00
Michael Niedermayer
60f3291086 mlpdec: switch to av_assert 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-07-18 16:22:41 +02:00
Mans Rullgard
ffdd93a25e ppc: fix build with altivec disabled 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2012-07-18 13:34:42 +01:00
Mans Rullgard
28f9ab7029 vp3: move idct and loop filter pointers to new vp3dsp context 
This moves all VP3-specific function pointers from dsputil to a
new vp3dsp context.  There is no reason to ever use the VP3 IDCT
where an MPEG2 IDCT is expected or vice versa.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2012-07-18 10:32:19 +01:00
Mans Rullgard
ab9f987661 build: add CONFIG_VP3DSP, reduce repetition in OBJS lists 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2012-07-18 10:32:18 +01:00
Kostya Shishkov
4cfb0d871d tscc2: do not add/subtract 128 bias during DCT 
It turns out that the reference decoder subtracts 128 from DC during block
decode but adds it back during reordering block with zigzag pattern.
Transforming block with incorrect DC caused heavy visual artifacts for
many quantisers.
 2012-07-18 07:05:59 +02:00
Kostya Shishkov
3c6c19184c tscc2: fix typo in DCT 2012-07-18 07:05:53 +02:00
Michael Niedermayer
56ae5926f7 Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  libopenjpeg: introduce encoding support
  libopenjpeg: rename decoder source file.
  RTMPTS protocol support
  RTMPS protocol support
  avconv: print an error message when demuxing fails.
  tscc2: DCT output should not be clipped
  rtmp: Rename rtmphttp to ffrtmphttp

Conflicts:
	Changelog
	configure
	doc/general.texi
	libavcodec/libopenjpegenc.c
	libavcodec/version.h
	libavformat/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2012-07-18 01:27:19 +02:00
Paul B Mahol
0b74b8f649 ptx: correct decoding 
The image data is in BGR and not in RGB.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2012-07-17 17:06:24 +00:00
Michael Bradshaw
453c02f971 libopenjpeg: introduce encoding support 
Based on FFmpeg version from
commit 713a7854e06964abc8f7d015b94acbed27769d24

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2012-07-17 14:56:58 +02:00
Michael Bradshaw
b43a7bb4f9 libopenjpeg: rename decoder source file. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2012-07-17 14:56:22 +02:00