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81c9e2e6d0
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16204 Commits

Author SHA1 Message Date
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
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
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 Bradshaw
453c02f971 libopenjpeg: introduce encoding support 
Based on FFmpeg version from
commit 713a7854e0

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
Kostya Shishkov
0b40153d20 tscc2: DCT output should not be clipped 
This fixes decoding some TSCC2 files with large quantisers.
 2012-07-17 07:21:24 +02:00
Mohammad Alsaleh
c37c383e59 libfdk-aac: Check if cutoff value is valid 
Passing a cutoff value < sample_rate/256 will cause a crash.
Also, values >20000 will have no effect and 20000 will be used anyway.

Signed-off-by: Mohammad Alsaleh <msal@tormail.org>
Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-07-15 21:59:51 +03:00
Mashiat Sarker Shakkhar
082829520e vc1dec: Do not use random pred_flag if motion vector data is skipped 
This fixes SA10143.vc1 from test-suite. Also partially fixes MC-VC1.ts
from videolan streams archive.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-07-15 14:02:38 +03:00
Martin Storsjö
25f056e6d4 vp8: Enclose pthread function calls in ifdefs 
This fixes building with threads disabled.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-07-15 13:55:18 +03:00
Ronald S. Bultje
c44091a9f7 snow: refactor code to work around a compiler bug in MSVC. 
This fixes the compiler error "cannot convert from 'BlockNode' to
'int16_t'".
 2012-07-14 19:19:34 -07:00
Martin Storsjö
a794600c00 vp8: Include the thread headers before using the pthread types 
This was unnoticed on linux, since stdlib.h apparently includes
files declaring the pthread_mutex_t and pthread_cond_t types.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
 2012-07-14 19:19:33 -07:00
Daniel Kang
951455c1c1 vp8: implement sliced threading 
Testing gives 25-30% gain on HD clips with two threads and
up to 50% gain with eight threads.

Sliced threading uses more memory than single or frame threading.

Frame threading and single threading keep the previous memory
layout.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2012-07-14 20:18:54 +02:00
Daniel Kang
17343e3952 vp8: move data from VP8Context->VP8Macroblock 
In preparation for sliced threading.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2012-07-14 20:18:54 +02:00
Daniel Kang
337ade52de vp8: refactor decoding a single mb_row 
This is in preperation for sliced threading.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2012-07-14 20:18:54 +02:00
Janne Grunau
f30260d32a imgconvert: deprecate avcodec_find_best_pix_fmt() 2012-07-13 19:22:46 +02:00
Janne Grunau
ac29054fda imgconvert: add avcodec_find_best_pix_fmt2() 
The number of pixel formats outgrew the number of available bits in
the bitmask used in avcodec_find_best_pix_fmt().
avcodec_find_best_pix_fmt2() uses a PIX_FMT_NONE terminated list
of pixel formats instead.
 2012-07-13 19:22:46 +02:00
Janne Grunau
39bb27bf79 imgconvert: avoid undefined left shift in avcodec_find_best_pix_fmt 
CC: libav-stable@libav.org
 2012-07-13 17:29:27 +02:00