FFmpeg

Commit Graph

Author	SHA1	Message	Date
John Stebbins	23d461fe87	ac3dec: Allow asymmetric application of DRC when drc_scale > 1 Amplification of quiet sounds is enhanced. Inspired by gbooker's A52Decoder.	11 years ago
Tim Walker	ade75fb811	(e)ac3: clip surround mix level indexes. Values 0-2 are reserved, 3 (-1.5dB) should be used instead.	11 years ago
Tim Walker	c229f571fd	(e)ac3: parse and store the Lt/Rt and LFE mix levels.	11 years ago
Tim Walker	1f604f96ea	ac3: set default matrix encoding modes in parse_frame_header. Deduplicates some code.	11 years ago
Tim Walker	7840c40445	(e)ac3dec: set AV_FRAME_DATA_MATRIXENCODING side data.	11 years ago
Tim Walker	13345fc1f8	(e)ac3: parse and store the Dolby Surround, Surround EX and Headphone mode flags.	11 years ago
John Stebbins	c9ca220ef2	ac3dec: make drc_scale exponentially The a52 spec suggests that "partial compression" should scale the drc value in this manner. Signed-off-by: Anton Khirnov <anton@khirnov.net>	11 years ago
Michael Niedermayer	4782c4284f	avcodec/ac3dec: check bap before use. Fixes out of array read Fixes assertion failure Fixes asan_static-oob_16431c0_8036_rio_bravo_mono_64_spx.ac3 Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Tim Walker	48b24bd2d2	ac3dec: Fix out-of-array read Signed-off-by: Diego Biurrun <diego@biurrun.de>	11 years ago
Michael Niedermayer	2cbf27b08a	libavcodec/ac3dec: fix channel_layout Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Tim Walker	d4df02131b	ac3dec: Remove write-only channel_layout field from AC3DecodeContext Signed-off-by: Diego Biurrun <diego@biurrun.de>	11 years ago
Tim Walker	b532854622	ac3: implement request_channel_layout. Signed-off-by: Diego Biurrun <diego@biurrun.de>	11 years ago
Tim Walker	ffb0af7f17	ac3dec: simplify an expression Signed-off-by: Diego Biurrun <diego@biurrun.de>	11 years ago
Michael Niedermayer	6c82c87dbb	ac3dec: fix outptr increment. Fixes corrupt data errors when downmixing in the AC-3 decoder. Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com> CC:libav-stable@libav.org	11 years ago
Anton Khirnov	23a211cbba	lavc: change all decoders to behave consistently with AV_EF_CRCCHECK. Just crccheck prints a warning, crccheck+explode returns an error. Also document this behavior.	11 years ago
Diego Biurrun	b2bed9325d	cosmetics: Group .name and .long_name together in codec/format declarations	11 years ago
Luca Barbato	b1f9cdc37f	ac3: Return proper error codes	11 years ago
Luca Barbato	818d1f1a3e	ac3: Clean up the error paths	11 years ago
Christophe Gisquet	b6293e2798	fmtconvert: Explicitly use int32_t instead of int Signed-off-by: Martin Storsjö <martin@martin.st>	11 years ago
Martin Storsjö	8f24c12be7	ac3dec: Don't consume more data than the actual input packet size This was handled properly in the normal return case at the end of the function, but not in this special case. Returning a value larger than the input packet size can cause problems for certain library users. Returning the actual input buffer size unconditionally, since it is not guaranteed that frame_size is set to a sensible value at this point. Cc: libav-stable@libav.org Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Martin Storsjö	031be5b41b	ac3dec: Consistently use AC3_BLOCK_SIZE and sizeof Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Martin Storsjö	68e57cde68	ac3dec: Increment channel pointers only once per channel If the channel mapping map multiple output channels to one input channel, we should only increment the actual pointer once. Cc: libav-stable@libav.org Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Christophe Gisquet	f49564c607	fmtconvert: int32_t input to int32_to_float_fmul_scalar It was previously declared as int. Does not change fate results for x86. Conflicts: libavcodec/ppc/fmtconvert_altivec.c Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Diego Biurrun	12e25ed284	avcodec: av_log_missing_feature(1) ---> avpriv_request_sample()	12 years ago
Clément Bœsch	1ec94b0f06	lavc: factorize ff_{thread_,re,}get_buffer error messages. Coccinelle profile used: @@ expression r, ctx, f, loglevel, str, flags; @@ -if ((r = ff_get_buffer(ctx, f, flags)) < 0) { - av_log(ctx, loglevel, str); - return r; -} +if ((r = ff_get_buffer(ctx, f, flags)) < 0) + return r; @@ expression r, ctx, f, loglevel, str; @@ -if ((r = ff_reget_buffer(ctx, f)) < 0) { - av_log(ctx, loglevel, str); - return r; -} +if ((r = ff_reget_buffer(ctx, f)) < 0) + return r; @@ expression r, ctx, f, loglevel, str, flags; @@ -if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0) { - av_log(ctx, loglevel, str); - return r; -} +if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0) + return r; ...along with some manual patches for the remaining ones.	12 years ago
Anton Khirnov	759001c534	lavc decoders: work with refcounted frames.	12 years ago
Michael Niedermayer	e0f716a9d9	ac3dec: use AVFrame accessor functions Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Justin Ruggles	d7c450436f	ac3dec: validate channel output mode against channel count Damaged frames can lead to a mismatch, which can cause a segfault due to using an incorrect channel mapping. CC:libav-stable@libav.org	12 years ago
Justin Ruggles	55d2e12aef	ac3: decode directly to the user-provided AVFrame	12 years ago
Michael Niedermayer	fbdb0313f5	ac3dec: fix non-optimal dithering of zero bit mantissas Use a noise range of -0.707 to 0.707 instead of -0.5 to 0.5 Based on patch by: Mathias Rauen <madshi@gmail.com> and commit by Justin Ruggles (`04ea5491`) Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Mathias Rauen	04ea5491a8	ac3dec: fix non-optimal dithering of zero bit mantissas Use a noise range of -0.707 to 0.707 instead of -0.5 to 0.5 Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>	12 years ago
Justin Ruggles	e034cc6c60	lavc: Move vector_fmul_window to AVFloatDSPContext Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	b888cea9cb	ac3dec: split out pointer update loop for saftey Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Diego Biurrun	511cf612ac	miscellaneous typo fixes	12 years ago
Michael Niedermayer	d28dfa2d42	ac3dec: fix outptr increment. Fixes decoding regression Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	2fb240ddb6	ac3dec: fix out of array read Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	7aabeea9ba	ac3dec: fix bugs in direct buffer use. This fixes potentially exploitable out of array writes. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Mans Rullgard	30b3916425	ac3dec: make downmix() take array of pointers to channel data	12 years ago
Mans Rullgard	b8f3ab8e6a	ac3dec: output planar float only Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Mans Rullgard	ec5da7aee2	ac3dec: decode directly into output buffers Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Anton Khirnov	594d4d5df3	lavc: add a wrapper for AVCodecContext.get_buffer(). It will be useful in the upcoming transition to refcounted AVFrames.	12 years ago
Diego Biurrun	717addecad	Use proper return values in case of missing features	12 years ago
Justin Ruggles	56b6a43056	ac3dec: ensure get_buffer() gets a buffer for the correct number of channels If there is an error during frame parsing, but AVCodecContext.channels was changed and AC3DecodeContext.out_channels was set previously, the two may not match. Fixes CVE-2012-2802 Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	12 years ago
Mans Rullgard	97cb9236cf	ac3: move ac3_downmix() from dsputil to ac3dsp Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Martin Storsjö	c7b610aa0b	avopt: Explicitly store float/double option defaults in .dbl Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Anton Khirnov	36ef5369ee	Replace all CODEC_ID_* with AV_CODEC_ID_*	12 years ago
Marton Balint	b99e9ee938	ac3dec: set decode_error_flags field in ac3 codec Signed-off-by: Marton Balint <cus@passwd.hu> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	2c22701c37	ac3dec: Check number of output channels. Fixes out of array write. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Diego Biurrun	a92be9b856	Replace memset(0) by zero initializations. Also remove one pointless zero initialization in rangecoder.c.	13 years ago
Justin Ruggles	3798205a77	mov: set channel layout for AC-3 streams based on the 'dac3' atom info fixes Bug 225	13 years ago

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506 Commits (b707abf0911b1cb997bf8b1912c970e1e15996cf)