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* Postpone API-incompatible changes until the next bump.Anton Khirnov2014-08-09
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* hevc_filter: avoid excessive calls to ff_hevc_get_ref_list()Anton Khirnov2014-08-09
| | | | | | | | 1) each of the loops run within a single CTB, so the relevant reference list is constant 2) when that CTB is, or lies on the same slice as, the current one, we can use a simple access instead of a relatively expensive call to ff_hevc_get_ref_list()
* hevc_refs: drop the handling of negative coordinates in ff_hevc_get_ref_list()Anton Khirnov2014-08-09
| | | | | It makes no sense and cannot happen in any place from which this function is called.
* hevc_filter: move some conditions out of loopsAnton Khirnov2014-08-09
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* hevc: deobfuscate slice/tile boundary handling for DBFAnton Khirnov2014-08-09
| | | | | Use named constants instead of magic numbers, avoid using variables with inverse meaning from what their name implies.
* hevc_filter: drop more redundant checksAnton Khirnov2014-08-09
| | | | The if() around those loops ensures this condition is always false.
* hevc_filter: drop redundant checksAnton Khirnov2014-08-09
| | | | | ff_hevc_deblocking_boundary_strengths() is never called if the deblocking filter is disabled for the slice.
* hevc: calculate the dbf strength in hls_pcm_sample() only if dbf is enabledAnton Khirnov2014-08-09
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* avcodec: Rename xvidmmx IDCT to xvidDiego Biurrun2014-08-08
| | | | The Xvid IDCT is not MMX-specific.
* xvididct: Ensure that the scantable permutation is always set correctlyDiego Biurrun2014-08-08
| | | | | This fixes cases where the scantable permuation would get overwritten by the general idctdsp initialization.
* idct: cosmetics: Drop one unnecessary if-block levelDiego Biurrun2014-08-08
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* configure: Only run gas checks on ARM and PowerPCDiego Biurrun2014-08-08
| | | | Standalone GNU assembly is not used on x86.
* configure: Die if gas is unavailable under aarch64 as well as ARMDiego Biurrun2014-08-08
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* mpeg: K&R formatting cosmeticsLuca Barbato2014-08-08
| | | | Signed-off-by: Diego Biurrun <diego@biurrun.de>
* mpegts: Use av_free() to free memory allocated by av_strdup()Diego Biurrun2014-08-08
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* mpegts: Fix memory leaks and related crashes in mpegs_write_header()Diego Biurrun2014-08-07
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* mpegts: Avoid unnecessary variable shadowingDiego Biurrun2014-08-07
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* mpegts: Drop some unnecessary parenthesesDiego Biurrun2014-08-07
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* mpegts: K&R formatting cosmeticsDiego Biurrun2014-08-07
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* swscale: Undeprecate sws_getContext()Diego Biurrun2014-08-07
| | | | sws_getCachedContext is not a full replacement for the function.
* avcodec: Undeprecate reordered_opaqueDiego Biurrun2014-08-07
| | | | | | | It allows attaching other external, opaque data to the frame and passing it through the reordering process, for cases when the caller wants other data than just the plain packet pts. There is no way to cleanly achieve this without the field.
* h264: fix interpretation of interleved stereo modesFelix Abecassis2014-08-07
| | | | | | Column and row frame packing arrangements were inverted. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
* movenc: fix QT chapter track character encodingJohn Stebbins2014-08-06
| | | | An encoding ("encd") box is required to tell QT that the string is UTF8
* movenc: add track title to tracksJohn Stebbins2014-08-06
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* movenc: remove pointless loop around BITEXACT testJohn Stebbins2014-08-06
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* svq1: do not modify the input packetAnton Khirnov2014-08-06
| | | | | | | | | | | The input data must remain constant, make a copy instead. This is in theory a performance hit, but since I failed to find any samples using this feature, this should not matter in practice. Also, check the size of the header, avoiding invalid reads on truncated data. CC:libav-stable@libav.org
* cdgraphics: do not return 0 from the decode functionAnton Khirnov2014-08-06
| | | | | | | 0 means no data consumed, so it can trigger an infinite loop in the caller. CC:libav-stable@libav.org
* cdgraphics: switch to bytestream2Anton Khirnov2014-08-06
| | | | | | | Fixes possible invalid memory accesses on corrupted data. CC:libav-stable@libav.org Bug-ID: CVE-2013-3674
* configure: Include the armcc build number in the compiler identificationMartin Storsjö2014-08-06
| | | | | | | | | | | | | | | | | | | | | | | | | This tries to find the most expressive part of the output of armcc --vsn to include, giving a compiler identification of "ARM Compiler 5.04 update 2 (build 82)" instead of just "ARM Compiler 5.04" for armcc 5.0. 4.x versions of armcc output the following, for "armcc --vsn": ARM C/C++ Compiler, RVCT4.0 [Build 925] For evaluation purposes only Software supplied by: ARM Limited ARM C/C++ Compiler, 4.1 [Build 894] For evaluation purposes only Software supplied by: ARM Limited 5.0 versions output this: Product: ARM Compiler 5.04 Component: ARM Compiler 5.04 update 2 (build 82) Tool: armcc [5040081] For evaluation purposes only Software supplied by: ARM Limited Signed-off-by: Martin Storsjö <martin@martin.st>
* jpeg2000: enable 4 component pixel formatsVittorio Giovara2014-08-06
| | | | | | Bug-Id: 721 CC: libav-stable@libav.org Sample-Id: 31230.mov
* huffyuvdec: check width size for yuv422pMichael Niedermayer2014-08-05
| | | | | | | | | Avoid out of array accesses. CC: libav-stable@libav.org Bug-Id: CVE-2013-0848 Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com> Signed-off-by: Anton Khirnov <anton@khirnov.net>
* mmvideo: check horizontal coordinate tooMichael Niedermayer2014-08-05
| | | | | | | | | Fixes out of array accesses. Bug-Id: CVE-2013-3672 Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com> Signed-off-by: Anton Khirnov <anton@khirnov.net>
* wmalosslessdec: fix mclms_coeffs* array sizeMichael Niedermayer2014-08-05
| | | | | | | | | Fixes corruption of context Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC:libav-stable@libav.org Bug-Id: CVE-2014-2098 Signed-off-by: Anton Khirnov <anton@khirnov.net>
* configure: check $as first before using $gas as GNU asJanne Grunau2014-08-05
| | | | | | | | llvm's integrated assembler supports the AArch64 asm on darwin since August 2014. So check $as first before using gas-preprocessor.pl via $gas. Makes the checks specific for that the architecture specific asm needs. PPC Altivec and AArch64 needs on ':vararg' for macro arguments. Arm needs in addition the '.altmacro' directive.
* fate: generate tests/pixfmts.mak for all targets requiring itJanne Grunau2014-08-05
| | | | | | All subtargets which should run the fate-filter-pixdesc% need to generate and include tests/pixfmts.mak. Most noteable missing target was fate itself.
* movenc: Add option to disable nero chaptersJohn Stebbins2014-08-05
| | | | | | | And add flag to muxer documentation. Nero chapters break some taggers (mp3tag and iTunes). Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* mpegts: Add HEVC definitionsFemi Adeyemi-Ejeye2014-08-05
| | | | Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* mpegts: Define the section length with a constantLuca Barbato2014-08-04
| | | | | The specification says the value is expressed in 10 bits including the 4-byte CRC.
* vc-1: Optimise parser (with special attention to ARM)Ben Avison2014-08-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The previous implementation of the parser made four passes over each input buffer (reduced to two if the container format already guaranteed the input buffer corresponded to frames, such as with MKV). But these buffers are often 200K in size, certainly enough to flush the data out of L1 cache, and for many CPUs, all the way out to main memory. The passes were: 1) locate frame boundaries (not needed for MKV etc) 2) copy the data into a contiguous block (not needed for MKV etc) 3) locate the start codes within each frame 4) unescape the data between start codes After this, the unescaped data was parsed to extract certain header fields, but because the unescape operation was so large, this was usually also effectively operating on uncached memory. Most of the unescaped data was simply thrown away and never processed further. Only step 2 - because it used memcpy - was using prefetch, making things even worse. This patch reorganises these steps so that, aside from the copying, the operations are performed in parallel, maximising cache utilisation. No more than the worst-case number of bytes needed for header parsing is unescaped. Most of the data is, in practice, only read in order to search for a start code, for which optimised implementations already existed in the H264 codec (notably the ARM version uses prefetch, so we end up doing both remaining passes at maximum speed). For MKV files, we know when we've found the last start code of interest in a given frame, so we are able to avoid doing even that one remaining pass for most of the buffer. In some use-cases (such as the Raspberry Pi) video decode is handled by the GPU, but the entire elementary stream is still fed through the parser to pick out certain elements of the header which are necessary to manage the decode process. As you might expect, in these cases, the performance of the parser is significant. To measure parser performance, I used the same VC-1 elementary stream in either an MPEG-2 transport stream or a MKV file, and fed it through avconv with -c:v copy -c:a copy -f null. These are the gperftools counts for those streams, both filtered to only include vc1_parse() and its callees, and unfiltered (to include the whole binary). Lower numbers are better: Before After File Filtered Mean StdDev Mean StdDev Confidence Change M2TS No 861.7 8.2 650.5 8.1 100.0% +32.5% MKV No 868.9 7.4 731.7 9.0 100.0% +18.8% M2TS Yes 250.0 11.2 27.2 3.4 100.0% +817.9% MKV Yes 149.0 12.8 1.7 0.8 100.0% +8526.3% Yes, that last case shows vc1_parse() running 86 times faster! The M2TS case does show a larger absolute improvement though, since it was worse to begin with. This patch has been tested with the FATE suite (albeit on x86 for speed). Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* vc-1: Add platform-specific start code search routine to VC1DSPContext.Ben Avison2014-08-04
| | | | | | | Initialise VC1DSPContext for parser as well as for decoder. Note, the VC-1 code doesn't actually use the function pointer yet. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* h264: Move start code search functions into separate source files.Ben Avison2014-08-04
| | | | | | This permits re-use with parsers for codecs which use similar start codes. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* fate: Only generate tests/pixfmts.mak if some pixfmts fate test is runDiego Biurrun2014-08-04
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* avcodec: Suppress deprecation warnings from DTG code scheduled for removalDiego Biurrun2014-08-04
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* fate: png-suiteVittorio Giovara2014-08-04
| | | | Every supported format is converted to RGB.
* tiff: support reading gray+alpha at 8 bitsCarl Eugen Hoyos2014-08-04
| | | | Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
* tiff: support reading gray+alpha at 16 bitsVittorio Giovara2014-08-04
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* png: support reading gray+alpha at 16 bitsVittorio Giovara2014-08-04
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* png: disable broken MMX/SIMD code for bpp <= 2Vittorio Giovara2014-08-04
| | | | | The decoder was producing different results when ASM was disabled. Based on a long debug session with Kostya.
* swscale: support AV_PIX_FMT_YA16 as inputVittorio Giovara2014-08-04
| | | | Based on a long debug session with Kostya.
* avutil: add AV_PIX_FMT_YA16 pixel formatVittorio Giovara2014-08-04
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