FFmpeg

Commit Graph

Author	SHA1	Message	Date
Diego Biurrun	b2bed9325d	cosmetics: Group .name and .long_name together in codec/format declarations	11 years ago
Martin Storsjö	59480abce7	alac: Do bounds checking of lpc_order read from the bitstream In lpc_prediction(), we write up to array element 'lpc_order' in an array allocated to hold 'max_samples_per_frame' elements. Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org Signed-off-by: Martin Storsjö <martin@martin.st>	11 years ago
Martin Storsjö	35cbc98b72	alac: Check that the channels fit at the given offset The code tries to decode a number of channels at the offset given by the ff_alac_channel_layout_offsets table. Even if the number of channels decoded so far doesn't exceed the total number of channels, we need to check that we actually can decode that number of channels at this offset as well. Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org Signed-off-by: Martin Storsjö <martin@martin.st>	11 years ago
Martin Storsjö	f7c5883126	alac: Limit max_samples_per_frame Otherwise buffer size calculations in allocate_buffers could overflow later, making the code think a large enough buffer actually was allocated. Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org Signed-off-by: Martin Storsjö <martin@martin.st>	11 years ago
Diego Biurrun	6d97484d72	avcodec: av_log_ask_for_sample() ---> avpriv_request_sample()	12 years ago
Anton Khirnov	759001c534	lavc decoders: work with refcounted frames.	12 years ago
Justin Ruggles	5cd597f22f	alac: decode directly to the user-provided AVFrame	12 years ago
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	12 years ago
Justin Ruggles	5e1bbb8c7e	alacenc: add support for multi-channel encoding	12 years ago
Anton Khirnov	594d4d5df3	lavc: add a wrapper for AVCodecContext.get_buffer(). It will be useful in the upcoming transition to refcounted AVFrames.	12 years ago
Justin Ruggles	a903f8f087	Include libavutil/channel_layout.h instead of libavutil/audioconvert.h Also reorder some other #include when applicable.	12 years ago
Justin Ruggles	46a86c6194	alacdec: set bits_per_raw_sample	12 years ago
Anton Khirnov	36ef5369ee	Replace all CODEC_ID_* with AV_CODEC_ID_*	13 years ago
Justin Ruggles	81f548de57	alac: check for truncated packets This will give a clearer error message when the error is caused by a truncated packet.	13 years ago
Justin Ruggles	fb57e913e1	alac: reverse lpc coeff order, simplify filter Reversing the lpc coefficient order simplifies indexing in the filter.	13 years ago
Justin Ruggles	4cd22b7738	alac: fix channel pointer assignment for 24 and 32-bit Needs to be done separately for each element.	13 years ago
Justin Ruggles	eeb55f5f2f	alac: cosmetics: general pretty-printing and comment clean up	13 years ago
Justin Ruggles	f3e5a7844b	alac: calculate buffer size outside the loop in allocate_buffers()	13 years ago
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

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167 Commits (38ecc3702dabbea09230f6d6333f59e74f5d1c12)