FFmpeg

Commit Graph

Author	SHA1	Message	Date
Justin Ruggles	535497f193	Change an error to a warning to support broken AC-3 files known to exist. Fixes Issue 1426. Originally committed as revision 20110 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	3fdccca091	10l: wrong operation in stereo rematrixing Originally committed as revision 20106 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	2ed4439658	Simplify stereo rematrixing by only using one temporary variable. It is also about 1.8% faster on my system. Originally committed as revision 20090 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	16c91d2b23	remove unneeded assignment in inner loop. rematrixing bands are contiguous. Originally committed as revision 20089 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	8b11b44ea7	Rearrange loop structure for approx. 35-50% faster calc_transform_coeffs_cpl() depending on content. Originally committed as revision 20055 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	3b6c5ad2f6	Move variable declaration to inside of loop. Originally committed as revision 20053 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	025873738f	Cosmetics: Rename some variables. Originally committed as revision 20052 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	b5f4639b13	Simplify coupling band loop. Originally committed as revision 20051 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	a521aadfe8	cosmetics: reindent after last commit Originally committed as revision 19589 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	25dcd1823c	ac3dec: simplify zero-bit mantissa dithering by calculating it conditionally during mantissa decoding, then only removing it from the coupling range for coupled channels which do not use dithering. Originally committed as revision 19588 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	b972c06a8f	cosmetics: indentation and line wrap Originally committed as revision 19587 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	c36ea0600c	cosmetics after last commit Originally committed as revision 19586 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	3f93716809	Modify decode_band_structure() so that the actual band structure is only used within the function. This removes the need to have the coupling band structure stored in the AC3DecodeContext. Originally committed as revision 19585 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	603139022d	Use coupling band sizes instead of coupling band structure when calculating coupling transform coefficients. Originally committed as revision 19584 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	eb98cdfa8d	cosmetics: add more detailed information to the documentation for decode_band_structure(). Originally committed as revision 19577 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Diego Biurrun	d15153244f	refactoring: properly separate AC-3 and E-AC-3 code Originally committed as revision 19501 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Diego Biurrun	89547cfb36	Make sure that eac3_decoder only gets enabled when CONFIG_EAC3_DECODER is set. Originally committed as revision 19500 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Ronald S. Bultje	ce863d7f36	Rename ff_log_missing_feature() to av_log_missing_feature(). Originally committed as revision 19294 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	ae04de316f	eac3dec: revert commit r18860. keep the AHT IDCT 24-bit. will make AHT GAQ dequantization 24-bit in a separate commit. Originally committed as revision 18887 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Diego Biurrun	1754fe4d30	The AC-3 decoder is now LGPL. Exchange the license header and change references in the build system and documentation that mark it as GPL. Originally committed as revision 18876 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Jason Garrett-Glaser	d869a460db	LGPL version of ac3_decode_transform_coeffs_ch, ~12.4% faster. Originally committed as revision 18875 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	9a7a71ed4c	eac3dec: use 16-bit pre-mantissas instead of 24-bit in AHT decoding. it is simpler and also fixes a bug in GAQ dequantization. Originally committed as revision 18860 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	1ac7d1ac50	ac3dec: fix coupling range check. the start subband must be less than the end subband. Originally committed as revision 18857 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Siarhei Siamashka	7d485f165f	Support for getting (i)MDCT output multiplied by a constant scaling factor. Scaling (i)MDCT output has no runtime overhead and can be used to improve performance of audio codecs. All the changes are only needed in 'ff_mdct_init' function and slow down initialization a bit. Originally committed as revision 18855 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	778bc09bbe	cosmetics: line wrap and vertical alignment Originally committed as revision 18752 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	396b73c7f7	ac3dec: Remove unneeded context variable, num_cpl_subbands. It is also not needed for spectral extension or enhanced coupling since it is redundant information, so I am removing it from decode_band_structure() as well. Originally committed as revision 18751 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	52dc3fc83d	cosmetics: indentation after last commit Originally committed as revision 18750 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	13ec942869	ac3dec: move channel remapping to outside of block loop Originally committed as revision 18749 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	bfeca7beb6	Add channel layout support to the AC-3 decoder and AC-3 parser. Originally committed as revision 18622 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	95f3019a51	ac3dec: reorder output channels to SMPTE channel order Originally committed as revision 18542 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Thilo Borgmann	7a00bbad21	Implement avcodec_decode_video2(), _audio3() and _subtitle2() which takes an AVPacket argument rather than a const uint8_t *buf + int buf_size. This allows passing of packet-specific flags from demuxer to decoder, such as the keyframe flag, which appears necessary to playback corePNG P-frames. Patch by Thilo Borgmann thilo.borgmann googlemail com, see also the thread "Google Summer of Code participation" on the mailinglist. Originally committed as revision 18351 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Diego Biurrun	406792e7b0	cosmetics: Remove pointless period after copyright statement non-sentences. Originally committed as revision 16684 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Alex Converse	11d6f38cc9	Factorise enum of AC3 error types to be usable by AAC in the ADTS patch that will follow Patch by Alex Converse ( alex converse gmail com ) Originally committed as revision 16479 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Stefano Sabatini	dbbec0c2f2	Make av_log_missing_feature an internal function, and change its name to ff_log_missing_feature. Originally committed as revision 16037 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	20e047262f	cosmetics: alignment after last commit Originally committed as revision 16035 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	72a6244b5d	ac3: detect dba errors and prevent writing past end of array Originally committed as revision 16034 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	2ceccf045c	ac3dec: simplify exponent bounds checking Originally committed as revision 16022 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	96f229d6c0	ac3dec: unroll inner loop in exponent decoding. 46% faster decode_exponents(). Originally committed as revision 16018 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	806703243e	cosmetics: vertical alignment Originally committed as revision 16017 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	1cdd567f31	cosmetics: reindent after last commit Originally committed as revision 16016 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	ce7d842fa6	ac3dec: detect out-of-range exponents Originally committed as revision 16015 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	f23dc1e1f9	silence gcc warning: ‘n_bands’ may be used uninitialized Originally committed as revision 15999 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	75b53b2123	ac3dec: use uint8_t for band sizes Originally committed as revision 15998 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	af2272b209	ac3dec: skip decoding and use error concealment for remaining blocks in the frame after an error occurs. Originally committed as revision 15987 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	e202cc2580	revert r15812 (E-AC-3 Spectral Extension) pending further review Originally committed as revision 15818 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	3f3ca7ac07	cosmetics: vertical alignment Originally committed as revision 15815 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	c763f86728	silence a gcc warning about using an uninitialized variable Originally committed as revision 15814 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	66561189a1	cosmetics: indentation Originally committed as revision 15813 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	0cc51734b2	add support for spectral extension Originally committed as revision 15812 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Justin Ruggles	0c5d750df9	add a generic function to decode banding structure for coupling, spectral extension, or enhanced coupling Originally committed as revision 15811 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago

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278 Commits (4b5fee0205a825e5f0c7b414af6776803e55a78e)