FFmpeg

Commit Graph

Author	SHA1	Message	Date
Reimar Döffinger	636ee66f1c	Fix data_size handling for AC3 and dca decoders. They use now code identical to the AAC decoder. The AC3 decoder previously did not check the data_size and the dca decoder checked against and set wrong values for float.	14 years ago
Reimar Döffinger	4c7ad768e1	ac3dec: allow selecting float output at runtime.	14 years ago
Justin Ruggles	4c64c8e95a	ac3dec: fix processing of delta bit allocation information. The number of dba segments is the coded value + 1. The coupling dba offset starts at the first coupling band, not at zero.	14 years ago
Reimar Döffinger	6e075dcaf8	ac3dec: avoid pointless alloc and indirection for input_buffer Since we now always allocate it, it can simply be made part of the context instead.	14 years ago
clsid2	0e09997fa4	Libavcodec AC3/E-AC3/DTS decoders now output floating point data. git-svn-id: https://ffdshow-tryout.svn.sourceforge.net/svnroot/ffdshow-tryout@3769 3b938f2f-1a1a-0410-8054-a526ea5ff92c	14 years ago
Mans Rullgard	6d9f52b2cd	ac3: move ff_ac3_bit_alloc_calc_bap to ac3dsp Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Justin Ruggles	991f3de1bb	ac3enc: Add codec-specific options for writing AC-3 metadata.	14 years ago
Justin Ruggles	be18738801	Get audio_service_type for AC-3 based on bitstream mode in the AC-3 parser and decoder, and vice-versa for the AC-3 encoder.	14 years ago
Reimar Döffinger	4c886d613d	Detect byte-swapped AC-3 and support decoding it directly. This allows the AC-3 decoder to be used directly with RealMedia decoders that unlike the libavformat one do not byte-swap automatically. Since the new code is only used in case we would fail directly otherwise there should be no risk for regressions.	14 years ago
Justin Ruggles	40728b5169	cosmetics: indentation	14 years ago
Justin Ruggles	67fc8652b9	Always copy input data for AC3 decoder. Depending on error_recognition is not correct, low values do certainly not mean it is ok to crash. Based on a patch by Reimar Döffinger <Reimar.Doeffinger@gmx.de>	14 years ago
Mans Rullgard	a45fbda994	Move ff_kbd_window_init() to a separate file This function is not tightly coupled to mdct, and it's in the way of making a fixed-point mdct implementation. Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Mans Rullgard	26f548bb59	fft: remove inline wrappers for function pointers This removes the rather pointless wrappers (one not even inline) for calling the fft_calc and related function pointers. Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Mans Rullgard	2912e87a6c	Replace FFmpeg with Libav in licence headers Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Reimar Döffinger	6820008a5c	Fix compiler warnings due to missing casts.	14 years ago
Reimar Döffinger	c9f6eab184	Detect byte-swapped AC-3 (aka DNET) and support decoding it directly. This allows the AC-3 decoder to be used directly with RealMedia decoders that unlike the libavformat one do not byte-swap automatically. Since the new code is only used in case we would fail directly otherwise there should be no risk for regressions. The "buf" pointer needs to be overwritten since otherwise the CRC check fails.	14 years ago
Justin Ruggles	fe2ff6d247	Separate format conversion DSP functions from DSPContext. This will be beneficial for use with the audio conversion API without requiring it to depend on all of dsputil. Signed-off-by: Mans Rullgard <mans@mansr.com> (cherry picked from commit `c73d99e672`)	14 years ago
Justin Ruggles	c73d99e672	Separate format conversion DSP functions from DSPContext. This will be beneficial for use with the audio conversion API without requiring it to depend on all of dsputil. Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Justin Ruggles	a8ae4e0e7b	Remove unneeded add bias from 3 functions. DSPContext.vector_fmul_window() DCADSPContext.lfe_fir() SynthFilterContext.synth_filter_float() Signed-off-by: Mans Rullgard <mans@mansr.com> (cherry picked from commit `80ba1ddb58`)	14 years ago
Justin Ruggles	80ba1ddb58	Remove unneeded add bias from 3 functions. DSPContext.vector_fmul_window() DCADSPContext.lfe_fir() SynthFilterContext.synth_filter_float() Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Justin Ruggles	79ce107847	cosmetics: indentation and spacing (cherry picked from commit `b5ec638343`)	14 years ago
Justin Ruggles	733dbe7d18	Remove the add bias hack for the C version of DSPContext.float_to_int16_*(). (cherry picked from commit `9d06d7bce3`)	14 years ago
Diego Elio Pettenò	e7e2df27f8	Add ff_ prefix to data symbols of encoders, decoders, hwaccel, parsers, bsf. None of these symbols should be accessed directly, so declare them as hidden. Signed-off-by: Mans Rullgard <mans@mansr.com> (cherry picked from commit `d36beb3f69`)	14 years ago
Justin Ruggles	dff80041e3	Add ff_ prefix to ac3_common_init(). Signed-off-by: Mans Rullgard <mans@mansr.com> (cherry picked from commit `4c57cde942`)	14 years ago
Justin Ruggles	b5ec638343	cosmetics: indentation and spacing	14 years ago
Justin Ruggles	9d06d7bce3	Remove the add bias hack for the C version of DSPContext.float_to_int16_*().	14 years ago
Diego Elio Pettenò	d36beb3f69	Add ff_ prefix to data symbols of encoders, decoders, hwaccel, parsers, bsf. None of these symbols should be accessed directly, so declare them as hidden. Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Justin Ruggles	4c57cde942	Add ff_ prefix to ac3_common_init(). Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Stefano Sabatini	5d6e4c160a	Replace deprecated symbols SAMPLE_FMT_* with AV_SAMPLE_FMT_*, and enum SampleFormat with AVSampleFormat. Originally committed as revision 25730 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Carl Eugen Hoyos	eb0a4d3222	Fix compilation of AC3 decoder if E-AC3 decoder was disabled. Originally committed as revision 23131 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	cc8538ff93	ac3dec: return smaller of buf_size and frame_size instead of always returning frame_size. Originally committed as revision 22950 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Stefano Sabatini	2874c81cc8	Replace all remaining occurrences of AVERROR_NOMEM with AVERROR(ENOMEM). AVERROR_NOMEM is deprecated and will be dropped at the next libavutil major bump. Originally committed as revision 22791 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Stefano Sabatini	72415b2adb	Define AVMediaType enum, and use it instead of enum CodecType, which is deprecated and will be dropped at the next major bump. Originally committed as revision 22735 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Carl Eugen Hoyos	ca6e7708b4	Add spectral extension to the E-AC-3 decoder. Original patch by Justin, updated and resubmitted by Christophe Gisquet, christophe D gisquet A gmail Originally committed as revision 22734 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	2c2cdc0bfb	Simplify error handling by processing header errors separate from CRC and buffer size vs. frame size errors. Originally committed as revision 21519 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	008f872f61	Only check frame size if the header is valid. Originally committed as revision 21439 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Reimar Döffinger	1460c79097	Use MULH instead of 64x64 multiplication, around 5% overall speedup on Intel Atom. Patch by myself and Yuriy Kaminskiy [yumkam mail ru] Originally committed as revision 21175 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	7934cbb3be	ac3dec: apply dynamic range compression to correct channels in dual-mono mode. Originally committed as revision 20533 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	187bc061e4	ac3dec: revert r20089. The change was just wrong. 10l for me. Originally committed as revision 20473 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
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	16 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	16 years ago
Justin Ruggles	b972c06a8f	cosmetics: indentation and line wrap Originally committed as revision 19587 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago

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323 Commits (445ee35e21c92e2429241d65bdba65f6e7c09132)