FFmpeg

Commit Graph

Author	SHA1	Message	Date
Anton Khirnov	2df0c32ea1	lavc: use a separate field for exporting audio encoder padding Currently, the amount of padding inserted at the beginning by some audio encoders, is exported through AVCodecContext.delay. However - the term 'delay' is heavily overloaded and can have multiple different meanings even in the case of audio encoding. - this field has entirely different meanings, depending on whether the codec context is used for encoding or decoding (and has yet another different meaning for video), preventing generic handling of the codec context. Therefore, add a new field -- AVCodecContext.initial_padding. It could conceivably be used for decoding as well at a later point.	10 years ago
Diego Biurrun	2d60444331	dsputil: Split motion estimation compare bits off into their own context	11 years ago
Diego Biurrun	9a9e2f1c8a	dsputil: Split audio operations off into a separate context	11 years ago
Diego Biurrun	27631796c9	ac3: Only initialize float_dsp for the float encoder variant	11 years ago
Diego Biurrun	2832ea26f3	Remove commented-out debug #define cruft	12 years ago
Diego Biurrun	6fee1b90ce	avcodec: Add av_cold attributes to init functions missing them	12 years ago
Anton Khirnov	f073b1500e	lavc: remove disabled FF_API_OLD_ENCODE_AUDIO cruft	12 years ago
Diego Biurrun	218aefce44	dsputil: Move LOCAL_ALIGNED macros to libavutil	12 years ago
Diego Biurrun	511cf612ac	miscellaneous typo fixes	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
Anton Khirnov	36ef5369ee	Replace all CODEC_ID_* with AV_CODEC_ID_*	13 years ago
Justin Ruggles	d5a7229ba4	Add a float DSP framework to libavutil Move vector_fmul() from DSPContext to AVFloatDSPContext.	13 years ago
Justin Ruggles	5cc51a5847	avutil: Add av_get_default_channel_layout() Also, use the new function in the AC-3 encoder.	13 years ago
Justin Ruggles	aa872af5e3	ac3enc: update to AVCodec.encode2() Update FATE references due to encoder delay.	13 years ago
Justin Ruggles	4e99501f62	(e)ac3enc: select a default bit rate based on the channel layout	13 years ago
Justin Ruggles	6aeea1dfb2	ac3enc: choose the closest bit rate to the one requested instead of failing	13 years ago
Martin Storsjö	9cf0841ef3	dsputil: Add ff_ prefix to the dsputil_init functions Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Diego Biurrun	a8798c7eb9	Drop unnecessary av_uninit attributes from some variable declarations. Recent versions of gcc (4.4+) no longer give false positive warnings.	13 years ago
Mans Rullgard	cc276c85d1	Make channel layout masks unsigned It makes more sense for a bit mask to use an unsigned type. The change should be source and binary compatible on all supported systems, hence micro version bump. Fixes a few invalid shifts. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Justin Ruggles	c2d9a65bc0	ac3enc: doxygen update. Add some parameters to existing function documentation. Remove some unneeded documentation. Convert some static function documentation to non-doxygen style.	13 years ago
Justin Ruggles	ae264bb29b	ac3enc: Add channel coupling support for the fixed-point AC-3 encoder. Update FATE references accordingly.	14 years ago
Justin Ruggles	c766eb1ce1	ac3enc: add macros for option names to make them more understandable.	14 years ago
Justin Ruggles	9542ca9fb7	ac3enc: fix 'channel_coupling' option to actually allow 'auto'. Use 'auto' as the default value.	14 years ago
Justin Ruggles	c3d63262fe	ac3enc: allow new coupling coordinates to be sent independently for each channel.	14 years ago
Justin Ruggles	d55ad59a8a	ac3enc: separate exponent bit counting from exponent grouping. Move bit counting to the bit allocation function. Move exponent grouping to after bit allocation. This will allow for adjustment of bandwidth parameters during bit allocation without having to do exponent grouping multiple times.	14 years ago
Justin Ruggles	093ee8e199	cosmetics: reindent	14 years ago
Justin Ruggles	1bca72e1bd	eac3enc: support writing of basic mixing and info metadata	14 years ago
Justin Ruggles	be7bd626c4	eac3enc: use different numbers of blocks per frame to allow higher bitrates	14 years ago
Justin Ruggles	08a747afb9	eac3enc: use frame exponent strategy when applicable. This checks if the set of selected exponent strategies for all blocks in a channel are in the frame exponent strategy table, and if so, writes the table index instead of each strategy. This saves up to 7 bits per channel per frame, so the overall effect on quality is small.	14 years ago
Justin Ruggles	b5849f7709	ac3enc: merge AC3MDCTContext with AC3EncodeContext. Since both the fixed-point and floating-point encoders use the FFTContext, this no longer needs to be in a separate context. Also, when a short-transform context is added, the same MDCT window will be used.	14 years ago
Justin Ruggles	82cea7cb6c	ac3enc: prefer passing AC3EncodeContext rather than AVCodecContext	14 years ago
Justin Ruggles	f501157e53	ac3enc: fix memleak	14 years ago
Justin Ruggles	bd2deab706	cosmetics: remove outdated comment that is no longer true	14 years ago
Justin Ruggles	8683c6a638	ac3enc: move ff_ac3_encode_frame() to ac3enc_template.c This avoids using function pointers for quite a few small functions, most of which just call DSP functions.	14 years ago
Justin Ruggles	7dcdf974d0	ac3enc: Remove bit allocation fallbacks. They introduce too much complexity for very little benefit. The result is that encoding will be more likely to fail at extremely low bitrates where quality would be awful anyway.	14 years ago
Justin Ruggles	684f4abfac	ac3enc: remove unneeded local variable in asym_quant()	14 years ago
Justin Ruggles	f21fb76b1b	ac3enc: remove a branch in asym_quant() by doing 2 shifts	14 years ago
Justin Ruggles	0e4dbe2996	ac3enc: avoid masking output in asym_quant() by using signed values for quantized mantissas.	14 years ago
Justin Ruggles	99477adc31	ac3enc: fix allocation of floating point samples. sizeof(SampleType) is different for fixed and float encoders.	14 years ago
Justin Ruggles	38c304addd	ac3enc: remove empty ac3_float function that is never called	14 years ago
Justin Ruggles	e0cc66df61	ac3enc: split templated float vs. fixed functions into a separate file. Function pointers are used for templated functions instead of needlessly duplicating many functions.	14 years ago
Justin Ruggles	e754dfc0bb	ac3enc: dynamically allocate AC3EncodeContext fields windowed_samples and mdct This will allow the same struct to be used for both the fixed and float ac3 encoders.	14 years ago
Justin Ruggles	36151b3e31	ac3enc: use function pointer to choose between AC-3 and E-AC-3 header output functions.	14 years ago
Diego Biurrun	d3778972d8	ac3enc: Fix linking of AC-3 encoder without the E-AC-3 encoder. The AC-3 encoder unconditionally references some symbols from the E-AC-3 encoder; make those references conditional to fix linking.	14 years ago
Justin Ruggles	c8e9ea43d0	Move E-AC-3 encoder functions to a separate eac3enc.c file.	14 years ago
Justin Ruggles	787a13535a	ac3enc: remove convenience macro, #define DEBUG	14 years ago
Justin Ruggles	a8bd53402a	ac3enc: remove unused #define	14 years ago
Justin Ruggles	35d5cb1ab4	ac3enc: extract all exponents for the frame at once	14 years ago
Mans Rullgard	90da52f01f	ac3enc: fix LOCAL_ALIGNED usage in count_mantissa_bits() Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Justin Ruggles	6ca23db9cc	ac3enc: modify mantissa bit counting to keep bap counts for all values of bap instead of just 0 to 4. This does all the actual bit counting as a final step.	14 years ago

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316 Commits (57ed5a64feec4af1f16f9a74c63cfa9aa8147242)