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* alacdec: do not be too strict about the extradata sizeJustin Ruggles2012-12-22
| | | | | | | 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
* alacenc: add support for multi-channel encodingJustin Ruggles2012-12-05
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* lavc: add a wrapper for AVCodecContext.get_buffer().Anton Khirnov2012-12-04
| | | | It will be useful in the upcoming transition to refcounted AVFrames.
* Include libavutil/channel_layout.h instead of libavutil/audioconvert.hJustin Ruggles2012-11-11
| | | | Also reorder some other #include when applicable.
* alacdec: set bits_per_raw_sampleJustin Ruggles2012-10-21
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* Replace all CODEC_ID_* with AV_CODEC_ID_*Anton Khirnov2012-08-07
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* alac: check for truncated packetsJustin Ruggles2012-07-27
| | | | | This will give a clearer error message when the error is caused by a truncated packet.
* alac: reverse lpc coeff order, simplify filterJustin Ruggles2012-07-27
| | | | Reversing the lpc coefficient order simplifies indexing in the filter.
* alac: fix channel pointer assignment for 24 and 32-bitJustin Ruggles2012-07-19
| | | | Needs to be done separately for each element.
* alac: cosmetics: general pretty-printing and comment clean upJustin Ruggles2012-07-19
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* alac: calculate buffer size outside the loop in allocate_buffers()Justin Ruggles2012-07-19
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* alac: change some data types to plain intJustin Ruggles2012-07-19
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* alac: cosmetics: rename some variables and function namesJustin Ruggles2012-07-19
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* alac: multi-channel decoding supportAndrew D'Addesio2012-07-19
| | | | Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
* alac: split element parsing into a separate functionJustin Ruggles2012-07-19
| | | | | This will make multi-channel implementation simpler. Based partially on a patch by Andrew D'Addesio <modchipv12@gmail.com>.
* alac: support a read sample size of up to 32Justin Ruggles2012-07-19
| | | | | Use get_bits_long() in decode_scalar(). Use unsigned int for decoded value.
* alac: output in planar sample formatJustin Ruggles2012-07-19
| | | | | Avoids unneeded interleaving and allows for reusing the AVFrame output buffer as the internal buffer for 24-bit and 32-bit sample size.
* alac: add 32-bit decoding supportJustin Ruggles2012-07-19
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* alac: simplify channel interleavingAndrew D'Addesio2012-07-19
| | | | Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
* alac: use AVPacket fields directly in alac_decode_frame()Justin Ruggles2012-07-19
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* alac: fix check for valid max_samples_per_frameJustin Ruggles2012-07-19
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* alac: use get_sbits() to read LPC coefficients instead of castingJustin Ruggles2012-07-19
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* alac: move the current samples per frame to the ALACContextJustin Ruggles2012-07-19
| | | | This will simplify the multi-channel implementation.
* alac: avoid using a double-negative when checking if the frame is compressedJustin Ruggles2012-07-19
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* alac: factor out output_size check in predictor_decompress_fir_adapt()Justin Ruggles2012-07-19
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* alac: factor out loading of next decoded sample in LPC predictionJustin Ruggles2012-07-19
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* alac: use index into buffer_out instead of incrementing the pointerJustin Ruggles2012-07-19
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* alac: simplify lpc coefficient adaptationJustin Ruggles2012-07-19
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* alac: reduce the number of local variables needed in lpc predictionJustin Ruggles2012-07-19
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* alac: simplify 1st order prediction and reading of warm-up samplesJustin Ruggles2012-07-19
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* alac: cosmetics: reindent after last commitJustin Ruggles2012-07-19
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* alac: remove unneeded conditionals in predictor_decompress_fir_adapt()Justin Ruggles2012-07-19
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* alac: use sizeof() instead of hardcoded data sizesJustin Ruggles2012-07-19
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* alac: make block_size signedJustin Ruggles2012-07-19
| | | | It does not need to be unsigned.
* alac: remove a duplicate local variableJustin Ruggles2012-07-19
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* alac: conditionally set sign_modifier to 1Justin Ruggles2012-07-19
| | | | | It is already unconditionally set to 0 prior to this, so we can modify it only when needed.
* alac: eliminate 2 unneeded local variables in bastardized_rice_decompress()Justin Ruggles2012-07-19
| | | | | x_modified is just unnecessary, and final_val can be removed by simplifying the unsigned-to-signed conversion.
* alac: adjust conditions for updating entropy decoder historyJustin Ruggles2012-07-19
| | | | avoids some unnecessary arithmetic in certain situations
* alac: cosmetics: reindent after last commitJustin Ruggles2012-07-19
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* alac: limit the rice param before passing to decode_scalar()Justin Ruggles2012-07-19
| | | | | reduces the number of parameters to decode_scalar() and slightly simplifies the code
* alac: reduce the number of parameters to bastardized_rice_decompress()Justin Ruggles2012-07-19
| | | | Use the ALACContext fields directly instead.
* alac: cosmetics: rename some ALACContext parametersJustin Ruggles2012-07-19
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* alac: clean up and update comments leftover from reverse-engineeringJustin Ruggles2012-07-19
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* cosmetics: Align codec declarationsMartin Storsjö2012-04-06
| | | | | | | 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>
* alac: convert extradata reading to bytestream2.Ronald S. Bultje2012-03-25
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* alacdec: implement the 2-pass prediction type.Justin Ruggles2012-01-03
| | | | | The reference encoder does not generate any streams using this, but the reference decoder can handle it, so we should as well.
* alacdec: fill in missing or guessed info about the extradata format.Justin Ruggles2012-01-03
| | | | | Now that there is official documentation from Apple about this, we don't have to guess anymore.
* Add avcodec_decode_audio4().Justin Ruggles2011-12-02
| | | | | | Deprecate avcodec_decode_audio3(). Implement audio support in avcodec_default_get_buffer(). Implement the new audio decoder API in all audio decoders.
* alacdec: remove unneeded NULL or zero-size packet checks.Justin Ruggles2011-10-26
| | | | This is already done in avcodec_decode_audio3()
* alacdec: simplify buffer allocation by using FF_ALLOC_OR_GOTO()Justin Ruggles2011-10-26
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