FFmpeg

Commit Graph

Author	SHA1	Message	Date
Diego Biurrun	b7f98659f2	Remove unnecessary get_bits.h #includes	9 years ago
Ganesh Ajjanagadde	7b11eead1b	avcodec/ac3: always use hardcoded tables The table in question is a 253 byte one. In fact, it turns out that dynamic generation of the table results in an increased binary size. Code compiled with GCC 5.2.0, x86-64 (size in bytes), before and after patch: old: 62321064 libavcodec/libavcodec.so.57 new: 62320536 libavcodec/libavcodec.so.57 Thus, it always make sense to statically allocate this. Tested with FATE with/without --enable-hardcoded-tables. Reviewed-by: wm4 <nfxjfg@googlemail.com> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>	9 years ago
Andreas Cadhalpun	bc4fee7f2a	ac3: validate end in ff_ac3_bit_alloc_calc_mask This fixes an invalid read if end is 0: band_end = ff_ac3_bin_to_band_tab[end-1] + 1; Depending on what is before the array, this can cause stack smashing, when band_end becomes too large. Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	e3f5b6f16d	avcodec/ac3: Fix undefined shift in ff_ac3_bit_alloc_calc_mask() Found-by: Clang -fsanitize=shift Reported-by: Thierry Foucu <tfoucu@google.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 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
Mans Rullgard	6d9f52b2cd	ac3: move ff_ac3_bit_alloc_calc_bap to ac3dsp 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
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	e732af87fc	ac3: Remove ff_ac3_critical_band_size_tab. It is only used to generate band_start_tab, which about the same size, at runtime, so it's simpler just to always hardcode band_start_tab. Signed-off-by: Mans Rullgard <mans@mansr.com> (cherry picked from commit `24e3ad3031`)	14 years ago
Justin Ruggles	4c57cde942	Add ff_ prefix to ac3_common_init(). Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Justin Ruggles	24e3ad3031	ac3: Remove ff_ac3_critical_band_size_tab. It is only used to generate band_start_tab, which about the same size, at runtime, so it's simpler just to always hardcode band_start_tab. Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Diego Elio Pettenò	6b784f1b91	Move ff_ac3_critical_band_size_tab in ac3.c for non-hardcoded tables. This symbol is only ever used to calculate the non-hardcoded tables, so only enable it in that case, and static to the source unit that uses it. Signed-off-by: Mans Rullgard <mans@mansr.com> (cherry picked from commit `6ed3b504f9`)	14 years ago
Diego Elio Pettenò	a172126c38	Remove unused ac3_parametric_bit_allocation function. Signed-off-by: Mans Rullgard <mans@mansr.com> (cherry picked from commit `362bfe2997`)	14 years ago
Diego Elio Pettenò	6ed3b504f9	Move ff_ac3_critical_band_size_tab in ac3.c for non-hardcoded tables. This symbol is only ever used to calculate the non-hardcoded tables, so only enable it in that case, and static to the source unit that uses it. Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Diego Elio Pettenò	362bfe2997	Remove unused ac3_parametric_bit_allocation function. Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Justin Ruggles	ce571ceb45	Use AC3_MAX_COEFS instead of 256 in a couple places in ac3.c Originally committed as revision 25968 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
Måns Rullgård	49bd8e4b84	Fix grammar errors in documentation Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Diego Biurrun	ba87f0801d	Remove explicit filename from Doxygen @file commands. Passing an explicit filename to this command is only necessary if the documentation in the @file block refers to a file different from the one the block resides in. Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Reimar Döffinger	29b75f0b67	Change code so it uses 2 adds instead of one FFABS. About 1% faster ff_ac3_bit_alloc_calc_psd on Intel Atom, overall speedup not measurable though. Should have a bigger effect on systems without cmov or with very slow cmov. Originally committed as revision 21214 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	31f8c10983	Simplify AC-3 critical band end calculation (correctly this time). Originally committed as revision 20438 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	94593c9b52	Revert r20050, which caused decoding errors with at least one valid AC-3 file. Originally committed as revision 20437 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	09e03847b9	Remove unneeded table lookup. Originally committed as revision 20050 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	444ce49a7a	Cosmetics: Rename some variables to be more descriptive of their use. Originally committed as revision 20049 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	4e745ea83e	Move some variable declarations to inside of loops. Originally committed as revision 20048 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	3538a2e47a	Remove unneeded variable. Originally committed as revision 20047 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	84cb4bc6a2	Cosmetics: Rename some variables to be more descriptive of their use. Originally committed as revision 20046 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	8a547c25a0	Remove some unneeded variables. Originally committed as revision 20045 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	403b1543b5	Cosmetics: Rename some variables Originally committed as revision 20044 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	f805d5fc9d	simplify 2 lines into 1 using FFMIN Originally committed as revision 20043 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	612bdf1808	Cosmetics: Do some basic pretty-printing. Originally committed as revision 20042 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	bf8643838b	Simplify by combining increment with array access. Originally committed as revision 20041 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	89e6317b5b	cosmetics: Rename some variables to be more descriptive of their use. Do some pretty-printing as well. Originally committed as revision 20040 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	a7e7417c41	Move 2 variable declarations to inside of loop. Originally committed as revision 20039 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	20520421a1	simplify by combining increment with array access Originally committed as revision 20038 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	be5830ea7a	Remove unneeded variable Originally committed as revision 20037 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Justin Ruggles	b05e4195d4	Hardcode AC-3 critical band tables when CONFIG_HARDCODED_TABLES is set. Originally committed as revision 20036 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Stefano Sabatini	9106a698e7	Rename bitstream.h to get_bits.h. Originally committed as revision 18494 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Diego Biurrun	bad5537e2c	Use full internal pathname in doxygen @file directives. Otherwise doxygen complains about ambiguous filenames when files exist under the same name in different subdirectories. Originally committed as revision 16912 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
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	14b7062829	cosmetics: make all references to AC-3 capitalized and hyphenated Originally committed as revision 14523 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Justin Ruggles	687671f03b	pass bap table to ff_ac3_bit_alloc_calc_bap() Originally committed as revision 13694 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Justin Ruggles	31bc6b4549	prevent crash when dba params are invalid Originally committed as revision 13653 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Zuxy Meng	98a6fff98c	Apply 'cold' attribute to init/uninit functions in libavcodec Originally committed as revision 12525 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Justin Ruggles	5ce2134258	cosmetics: rename ac3 bit allocation variables Originally committed as revision 11194 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Justin Ruggles	66ecf18e38	cosmetics: rename ac3 tables Originally committed as revision 11193 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Justin Ruggles	cc2a8443eb	move some common values to ac3.h and utilize them Originally committed as revision 9679 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Aurelien Jacobs	7adb10bedf	move ac3 tables from a .h to a .c Originally committed as revision 8816 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago

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60 Commits (fc3eb173f493344bc69feabaca108f7ca1dfccee)