FFmpeg

Commit Graph

Author	SHA1	Message	Date
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	12 years ago
Luca Barbato	818d1f1a3e	ac3: Clean up the error paths	12 years ago
Christophe Gisquet	b6293e2798	fmtconvert: Explicitly use int32_t instead of int Signed-off-by: Martin Storsjö <martin@martin.st>	12 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_*	13 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
Martin Storsjö	9cf0841ef3	dsputil: Add ff_ prefix to the dsputil_init functions Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Michael Niedermayer	e6d9fa66f1	ac3dec: Move center and surround mix level tables to the parser. That way all mix levels as exported by avpriv_ac3_parse_header() will have the same meaning. Previously the 3-bit center mix level for E-AC-3 was used to index in a 4-entry table, leading to out-of-array reads. Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com> Signed-off-by: Alex Converse <alex.converse@gmail.com>	13 years ago
Anton Khirnov	f326501a65	lavc: remove disabled FF_API_DRC_SCALE cruft.	13 years ago
Michael Niedermayer	99a42f3fa9	ac3dec: Move center&surround mix level tables to parser. That way all mix levels as exported by the parser will have the same meaning. Previously the 3bit center mix level for eac3 was used to index in a 4 entry table leading to out of array reads. this change removes the table and offsets the ac3 variable by 4 so it matches the meanings for eac3 except the reserved case. The reserved case is then explicitly handled. Idea-by: Justin Ruggles <justin.ruggles@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Diego Biurrun	3dc99a18d4	cosmetics: drop some pointless parentheses	13 years ago
Michael Niedermayer	eda3758c87	ac3dec: update checked AV_EF flags. A user who wishes to use default error concealment cannot set the AV_EF_CRCCHECK flag because not every CRC in every format is a reliable indicator of bitstream damage. In some formats crcrs can be nonsensical in absence of any damage. We thus add the AV_EF_CAREFUL flag in addition to the AV_EF_CRCCHECK flag to allow a user to enable this reliable CRC check without having to enable all CRC checks in all formats. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Chris Berov	541d083a40	ac3dec: cosmetics: pretty-printing Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>	13 years ago
Justin Ruggles	0eea212943	Add avcodec_decode_audio4(). Deprecate avcodec_decode_audio3(). Implement audio support in avcodec_default_get_buffer(). Implement the new audio decoder API in all audio decoders.	13 years ago
Dustin Brody	9abc98737f	lavc: replace references to deprecated AVCodecContext.error_recognition to use AVCodecContext.err_recognition Signed-off-by: Anton Khirnov <anton@khirnov.net>	13 years ago
Anton Khirnov	6f89efeaa7	lavc: use avpriv_ prefix for ff_ac3_parse_header. It's used in lavf.	13 years ago
Anton Khirnov	145f741e11	AVOptions: rename FF_OPT_TYPE_* => AV_OPT_TYPE_*	13 years ago
Mans Rullgard	633ddb8519	ac3dec: use get_sbits() instead of manually sign-extending Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Anton Khirnov	a4ea00d021	lavc/lavf: use unique private classes. This is needed by the new AVOptions API.	13 years ago

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418 Commits (641358addcffe0cca55c547316781b11e9315dbc)