FFmpeg

Commit Graph

Author	SHA1	Message	Date
Justin Ruggles	bae83f2c74	alac: change some data types to plain int	13 years ago
Justin Ruggles	2aebac6918	alac: cosmetics: rename some variables and function names	13 years ago
Andrew D'Addesio	1b3ef155d7	alac: multi-channel decoding support Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>	13 years ago
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>.	13 years ago
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.	13 years ago
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.	13 years ago
Justin Ruggles	6482bd8831	alac: add 32-bit decoding support	13 years ago
Andrew D'Addesio	6cda74c155	alac: simplify channel interleaving Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>	13 years ago
Justin Ruggles	5138ff143f	alac: use AVPacket fields directly in alac_decode_frame()	13 years ago
Justin Ruggles	7a206eb32f	alac: fix check for valid max_samples_per_frame	13 years ago
Justin Ruggles	1193d3fedd	alac: use get_sbits() to read LPC coefficients instead of casting	13 years ago
Justin Ruggles	7a50ec6799	alac: move the current samples per frame to the ALACContext This will simplify the multi-channel implementation.	13 years ago
Justin Ruggles	46043962ea	alac: avoid using a double-negative when checking if the frame is compressed	13 years ago
Justin Ruggles	9a6c528e08	alac: factor out output_size check in predictor_decompress_fir_adapt()	13 years ago
Justin Ruggles	ebd4c3add1	alac: factor out loading of next decoded sample in LPC prediction	13 years ago
Justin Ruggles	a4ecd41442	alac: use index into buffer_out instead of incrementing the pointer	13 years ago
Justin Ruggles	f2515cd629	alac: simplify lpc coefficient adaptation	13 years ago
Justin Ruggles	abc4376b31	alac: reduce the number of local variables needed in lpc prediction	13 years ago
Justin Ruggles	01880d287b	alac: simplify 1st order prediction and reading of warm-up samples	13 years ago
Justin Ruggles	d0c0bf0d3e	alac: cosmetics: reindent after last commit	13 years ago
Justin Ruggles	79def4c523	alac: remove unneeded conditionals in predictor_decompress_fir_adapt()	13 years ago
Justin Ruggles	4bcd637dcb	alac: use sizeof() instead of hardcoded data sizes	13 years ago
Justin Ruggles	91620a04f1	alac: make block_size signed It does not need to be unsigned.	13 years ago
Justin Ruggles	2fc24b3273	alac: remove a duplicate local variable	13 years ago
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.	13 years ago
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.	13 years ago
Justin Ruggles	6fd8a28b59	alac: adjust conditions for updating entropy decoder history avoids some unnecessary arithmetic in certain situations	13 years ago
Justin Ruggles	a06fdadd97	alac: cosmetics: reindent after last commit	13 years ago
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	13 years ago
Justin Ruggles	6e91f62256	alac: reduce the number of parameters to bastardized_rice_decompress() Use the ALACContext fields directly instead.	13 years ago
Justin Ruggles	836e8b9ba0	alac: cosmetics: rename some ALACContext parameters	13 years ago
Justin Ruggles	2ac1737583	alac: clean up and update comments leftover from reverse-engineering	13 years ago
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>	13 years ago
Ronald S. Bultje	c3bbd0b53b	alac: convert extradata reading to bytestream2.	13 years ago
Baptiste Coudurier	89fc7e36c7	alacdec: support 32 bps Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
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.	13 years ago
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.	13 years ago
Michael Niedermayer	a8469223f6	alac: Check for bitstream overread Fixes Ticket801 Bug found by: Oana Stratulat Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Justin Ruggles	0eea212943	Add avcodec_decode_audio4(). Deprecate avcodec_decode_audio3(). Implement audio support in avcodec_default_get_buffer(). Implement the new audio decoder API in all audio decoders.	13 years ago
Justin Ruggles	30f3e7b524	alacdec: remove unneeded NULL or zero-size packet checks. This is already done in avcodec_decode_audio3()	13 years ago
Justin Ruggles	68f7e9cd8e	alacdec: simplify buffer allocation by using FF_ALLOC_OR_GOTO()	13 years ago
Justin Ruggles	b316af7a7c	alacdec: ask for a sample for unsupported sample depths. Also return AVERROR_PATCHWELCOME.	13 years ago
Justin Ruggles	63cf54df7a	alacdec: cosmetics: use 'ch' instead of 'chan' to iterate channels	13 years ago
Justin Ruggles	01200f1283	alacdec: move some declarations to the top of the function	13 years ago
Justin Ruggles	c3a92412c0	alacdec: always use get_sbits_long() for uncompressed samples	13 years ago
Justin Ruggles	b46e58f741	alacdec: remove unneeded local variable	13 years ago
Justin Ruggles	7080533cda	alacdec: remove the numchannels parameter from several functions. They only operate on stereo content, so the extra param is not necessary and also allows for simplifying the code.	13 years ago
Justin Ruggles	cb50329fc5	alacdec: rename 2 functions. Now they only do stereo interleaving.	13 years ago
Justin Ruggles	c39bddd392	alacdec: move appending of extra_bits to a separate function. This should also fix decoding of mono 24-bit.	13 years ago
Justin Ruggles	e739d35156	alacdec: split stereo decorrelation into a separate function. It is identical for 16-bit and 24-bit, so there is no need to have duplicate code.	13 years ago

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231 Commits (500662784341373d625af629cad94826beca3bc8)