Diego Biurrun
6d97484d72
avcodec: av_log_ask_for_sample() ---> avpriv_request_sample()
2013-03-13 21:20:12 +01:00
Anton Khirnov
759001c534
lavc decoders: work with refcounted frames.
2013-03-08 07:38:30 +01:00
Justin Ruggles
5cd597f22f
alac: decode directly to the user-provided AVFrame
2013-02-12 12:21:21 -05:00
Justin Ruggles
68a04b0cce
alacdec: do not be too strict about the extradata size
...
Sometimes the extradata has duplicate atoms, but that shouldn't prevent
decoding. Just ensure that it is at least 36 bytes as a sanity check.
CC: libav-stable@libav.org
2012-12-22 12:18:41 -05:00
Justin Ruggles
5e1bbb8c7e
alacenc: add support for multi-channel encoding
2012-12-05 16:13:37 -05:00
Anton Khirnov
594d4d5df3
lavc: add a wrapper for AVCodecContext.get_buffer().
...
It will be useful in the upcoming transition to refcounted AVFrames.
2012-12-04 21:41:59 +01:00
Justin Ruggles
a903f8f087
Include libavutil/channel_layout.h instead of libavutil/audioconvert.h
...
Also reorder some other #include when applicable.
2012-11-11 13:35:12 -05:00
Justin Ruggles
46a86c6194
alacdec: set bits_per_raw_sample
2012-10-21 23:54:51 -04:00
Anton Khirnov
36ef5369ee
Replace all CODEC_ID_* with AV_CODEC_ID_*
2012-08-07 16:00:24 +02:00
Justin Ruggles
81f548de57
alac: check for truncated packets
...
This will give a clearer error message when the error is caused by a
truncated packet.
2012-07-27 13:52:20 -04:00
Justin Ruggles
fb57e913e1
alac: reverse lpc coeff order, simplify filter
...
Reversing the lpc coefficient order simplifies indexing in the filter.
2012-07-27 13:52:19 -04:00
Justin Ruggles
4cd22b7738
alac: fix channel pointer assignment for 24 and 32-bit
...
Needs to be done separately for each element.
2012-07-19 20:14:29 -04:00
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
Martin Storsjö
00c3b67b8a
cosmetics: Align codec declarations
...
Also break some long lines, remove codec function placeholder comments
and add spaces in sample/pixel format lists.
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-04-06 22:37:38 +03:00
Ronald S. Bultje
c3bbd0b53b
alac: convert extradata reading to bytestream2.
2012-03-25 13:35:05 -07:00
Justin Ruggles
e49d21306a
alacdec: implement the 2-pass prediction type.
...
The reference encoder does not generate any streams using this, but the
reference decoder can handle it, so we should as well.
2012-01-03 13:15:24 -05:00
Justin Ruggles
e76c7b856f
alacdec: fill in missing or guessed info about the extradata format.
...
Now that there is official documentation from Apple about this, we don't have
to guess anymore.
2012-01-03 13:15:23 -05:00
