FFmpeg

Commit Graph

Author	SHA1	Message	Date
Justin Ruggles	aa645b9888	Make windowed_samples 16-byte aligned. This will allow future SIMD optimization of the window function. Originally committed as revision 26025 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	e8d21fba3f	Allocate planar_samples using av_mallocz(). Lowers memory usage when encoding less than 6 channels. Originally committed as revision 26024 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	171bc51c9b	Allocate bap and bap1 buffers using av_malloc(). This reduces the memory footprint when using less than 6 channels. Modify bit allocation to swap the 2 buffers instead of using memcpy() and use per-block pointers for bap. This is slightly faster (0.3%) in function cbr_bit_allocation(). Originally committed as revision 26023 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	1c3e117e0b	Remove last_samples[] and copy directly from planar_samples[]. Avoids memcpy that was used to store last samples for next frame. Approx. 3% faster in function deinterleave_input_samples() and reduces memory usage by 3kB. Originally committed as revision 26021 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	7eeca961e3	Remove unneeded line. key_frame is already set to 1 in avcodec_alloc_frame(). Originally committed as revision 26020 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	2d82d9b1df	cosmetics: comment clean-up and misc cosmetics Originally committed as revision 26019 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	5901cebecd	Separate most of the per-block arrays into a separate per-block struct. Originally committed as revision 26018 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	cb6247cb30	Split bit allocation search into a separate function. Originally committed as revision 26017 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	06f6f78578	10l: fix typo in compute_exp_strategy() Originally committed as revision 26013 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	266d24be4a	Move large arrays to AC3EncodeContext rather than passing them around. Originally committed as revision 26012 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	7da4dc17d9	cosmetics: line wrap and spacing Originally committed as revision 26011 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	a0d763fc88	Use a single value for SNR offset in the bit allocation search rather than the separate coarse and fine values. Originally committed as revision 26010 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	70fcd7ea80	Change bit_alloc() to return the mantissa bit count. Originally committed as revision 26009 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	937cd1467c	cosmetics: alignment and line wrap after last commit Originally committed as revision 26008 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	359c1d1926	Move bit counts to AC3EncodeContext. Originally committed as revision 26007 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	793bbf9544	Split out setting of bit allocation parameters to a separate function. Th new function only needs to be called at initialization because bit allocation parameters currently do not change during encoding. Originally committed as revision 26003 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	8999944ecb	Split out counting of frame bits into a separate function. Originally committed as revision 26002 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	33a7d549e8	cosmetics: vertical alignment Originally committed as revision 26001 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	d3325d555b	Only calculate num_exp_groups once. Originally committed as revision 26000 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	dc0bc0f84e	Check for bit allocation error in ac3_encode_frame(). Move error log printout to ac3_encode_frame(). Originally committed as revision 25999 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	f94bacc538	Split out grouping of exponents into a separate function. Originally committed as revision 25998 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	b6a1e5236e	Split out mantissa quantization into separate functions. Originally committed as revision 25997 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	5b44ede0ba	cosmetics: rearrange some functions Originally committed as revision 25996 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	d7da80806c	Reverse the exponent & exponent strategy array arrangement to simplify the per-channel exponent strategy decision. This will also make it easier to plug-in other exponent strategy algorithms. Originally committed as revision 25995 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	67d979fede	Move writing of frame to the output bitstream to a separate function. Originally committed as revision 25994 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	084f5c5afe	cosmetics: remove a comment and just spacing Originally committed as revision 25993 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	160d85f5b0	Split frame size adjustment into a separate function. Originally committed as revision 25992 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	dfdf73eb1a	Split exponent processing into separate functions. Originally committed as revision 25991 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	0a0a8500fb	Split applying of MDCT into several separate functions. Originally committed as revision 25990 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	4acc790f3c	Split input sample deinterleaving into a separate function. Originally committed as revision 25989 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	152cc52803	Separate functionally different calculations in ac3_encode_frame(). Originally committed as revision 25988 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	98f6ee4453	cosmetics: rename 2 variables Originally committed as revision 25987 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	12ed622699	Deinterleave whole frame at once instead of per-block. This reduces the amount of memcpy() by using pointers to overlap samples for successive blocks rather than copying. Originally committed as revision 25986 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	e0685bc98f	cosmetics: add & alter some comments Originally committed as revision 25985 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	282255bbd2	Split setting of bandwidth into a separate function. Originally committed as revision 25984 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	e35c984a5d	Move setting of bitstream_id and bitstream_mode to ac3_encode_init(). Originally committed as revision 25983 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	ddf63d37b8	Improve ac3_encode_init() error reporting. Return AVERROR(EINVAL) instead of -1. Propogate errors from called functions. Add some error log printouts. Originally committed as revision 25982 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	b64d842c1d	cosmetics: indent after last commit Originally committed as revision 25981 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	99ca4f73f0	Don't use nested loops to iterate valid sample rates. Eliminates a goto and mirrors the bitrate validation. Originally committed as revision 25980 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	1607db0a95	Remove some duplicate local copies of avctx fields. This is an av_cold function, and we don't need to duplicate variables just to save a few characters. Originally committed as revision 25979 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	8f60f70d44	Split validation of initial user options into a separate function. Originally committed as revision 25978 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	427e2293d3	Use bytes instead of 16-bit words for frame size. Originally committed as revision 25977 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	eed00252c9	cosmetics: rename variable 'n' to 'pad_bytes' Originally committed as revision 25976 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	1971ab6ed6	Change output_frame_end() to return void. The frame size is already known. Originally committed as revision 25975 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	e8b552a818	cosmetics: pretty-printing Originally committed as revision 25974 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	ce67b7cd38	cosmetics: rename some iterator variables to match what they represent Originally committed as revision 25973 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	777732756a	cosmetics: rename a variable for consistency Originally committed as revision 25972 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	aab45ca3de	cosmetics: rename exp_samples and global_exp to exp_shift. Originally committed as revision 25971 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	23c5b361a6	cosmetics: rename 2 functions Originally committed as revision 25970 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Justin Ruggles	47ae6e795b	define AC3_CRITICAL_BANDS and use it in the AC-3 encoder and decoder. Originally committed as revision 25967 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago

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336 Commits (4093d130d1934edcd098014d306492173527f1f6)