FFmpeg

Commit Graph

Author	SHA1	Message	Date
Lynne	42e2319ba9	lavu/tx: add support for double precision FFT and MDCT Simply moves and templates the actual transforms to support an additional data type. Unlike the float version, which is equal or better than libfftw3f, double precision output is bit identical with libfftw3.	5 years ago
Lynne	b79b29ddb1	libavutil: add an FFT & MDCT implementation This commit adds a new API to libavutil to allow for arbitrary transformations on various types of data. This is a partly new implementation, with the power of two transforms taken from libavcodec/fft_template, the 5 and 15-point FFT taken from mdct15, while the 3-point FFT was written from scratch. The (i)mdct folding code is taken from mdct15 as well, as the mdct_template code was somewhat old, messy and not easy to separate. A notable feature of this implementation is that it allows for 3xM and 5xM based transforms, where M is a power of two, e.g. 384, 640, 768, 1280, etc. AC-4 uses 3xM transforms while Siren uses 5xM transforms, so the code will allow for decoding of such streams. A non-exaustive list of supported sizes: 4, 8, 12, 16, 20, 24, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1024, 1280, 1536, 1920, 2048, 2560... The API was designed such that it allows for not only 1D transforms but also 2D transforms of certain block sizes. This was partly on accident as the stride argument is required for Opus MDCTs, but can be used in the context of a 2D transform as well. Also, various data types would be implemented eventually as well, such as "double" and "int32_t". Some performance comparisons with libfftw3f (SIMD disabled for both): 120: 22353 decicycles in fftwf_execute, 1024 runs, 0 skips 21836 decicycles in compound_fft_15x8, 1024 runs, 0 skips 128: 22003 decicycles in fftwf_execute, 1024 runs, 0 skips 23132 decicycles in monolithic_fft_ptwo, 1024 runs, 0 skips 384: 75939 decicycles in fftwf_execute, 1024 runs, 0 skips 73973 decicycles in compound_fft_3x128, 1024 runs, 0 skips 640: 104354 decicycles in fftwf_execute, 1024 runs, 0 skips 149518 decicycles in compound_fft_5x128, 1024 runs, 0 skips 768: 109323 decicycles in fftwf_execute, 1024 runs, 0 skips 164096 decicycles in compound_fft_3x256, 1024 runs, 0 skips 960: 186210 decicycles in fftwf_execute, 1024 runs, 0 skips 215256 decicycles in compound_fft_15x64, 1024 runs, 0 skips 1024: 163464 decicycles in fftwf_execute, 1024 runs, 0 skips 199686 decicycles in monolithic_fft_ptwo, 1024 runs, 0 skips With SIMD we should be faster than fftw for 15xM transforms as our fft15 SIMD is around 2x faster than theirs, even if our ptwo SIMD is slightly slower. The goal is to remove the libavcodec/mdct15 code and deprecate the libavcodec/avfft interface once aarch64 and x86 SIMD code has been ported. New code throughout the project should use this API. The implementation passes fate when used in Opus, AAC and Vorbis, and the output is identical with ATRAC9 as well.	6 years ago
Timo Rothenpieler	15c6390139	avutil/cuda_check: avoid pointlessly exporting same symbol from two libraries	6 years ago
Mohammad Izadi	2744d6b364	Add HDR dynamic metadata struct (for SMPTE 2094-40) to libavutil The dynamic metadata contains data for color volume transform - application 4 of SMPTE 2094-40:2016 standard. The data comes from HEVC in the SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	6 years ago
Paul B Mahol	4b30726dd3	lavu: add locale-independent sscanf implementation Copied and adopted from musl implementation. * converted all 'long double' to 'double' * removed %m support	6 years ago
Philip Langdale	19d3d0c057	avutil/hwcontext_cuda: Define and use common CHECK_CU() We have a pattern of wrapping CUDA calls to print errors and normalise return values that is used in a couple of places. To avoid duplication and increase consistency, let's put the wrapper implementation in a shared place and use it everywhere. Affects: * avcodec/cuviddec * avcodec/nvdec * avcodec/nvenc * avfilter/vf_scale_cuda * avfilter/vf_scale_npp * avfilter/vf_thumbnail_cuda * avfilter/vf_transpose_npp * avfilter/vf_yadif_cuda	6 years ago
Jacob Trimble	69bd73b3ff	libavutil/encryption_info: Add unit tests. Signed-off-by: Jacob Trimble <modmaker@google.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	6 years ago
Mark Thompson	ba7d1377e8	hwcontext: Add test for device creation and derivation This uses any devices it can find on the host system - on a system with no hardware device support or in builds with no support included it will do nothing and pass.	7 years ago
Mark Thompson	989c5a84ac	lavu/Makefile: Fix alignment and ordering	7 years ago
Jacob Trimble	db2a7c947e	avcodec/avcodec.h: Add encryption info side data. This new side-data will contain info on how a packet is encrypted. This allows the app to handle packet decryption. Signed-off-by: Jacob Trimble <modmaker@google.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	7 years ago
James Almer	72bb955625	avutil/integer: move the test to the corresponding subdirectory And actually enable it. Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: James Almer <jamrial@gmail.com>	7 years ago
Anton Khirnov	89b84cb18b	It has been replaced by C11 stdatomic.h and is now unused. (cherry picked from commit `5cc0057f49`) Signed-off-by: James Almer <jamrial@gmail.com>	7 years ago
Aman Gupta	e4d9f05ca7	lavu/hwcontext: add AV_HWDEVICE_TYPE_MEDIACODEC Signed-off-by: Matthieu Bouron <matthieu.bouron@gmail.com>	7 years ago
Mark Thompson	3650cb2dfa	lavu,lavfi,ffmpeg: Remove experimental OpenCL API This was added in early 2013 and abandoned several months later; as far as I can tell, there are no external users. Future OpenCL use will be via hwcontext, which requires neither special OpenCL-only API nor global state in libavutil. All internal users are also deleted - this is just the unsharp filter (replaced by unsharp_opencl, which is more flexible) and the deshake filter (no replacement).	7 years ago
Mark Thompson	b25d8ef0a7	lavu: OpenCL hwcontext implementation	7 years ago
Mark Thompson	9cb23cd9fe	lavu: Add DRM hwcontext	7 years ago
Muhammad Faiz	a3d3cfa65c	avutil: merge slice threading implementation from avcodec and avfilter Rework it to improve performance. Now mutex is not shared by workers, instead each worker has its own mutex and condition variable. This reduces lock contention between workers. Also use atomic variable for counter. The interface also allows execute to run special function on main thread, requested by Ronald. Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>	7 years ago
Mark Thompson	3192821237	pixdesc: Add a test for av_find_best_pix_fmt_of_2()	7 years ago
wm4	3303511f33	lavu: add new D3D11 pixfmt and hwcontext To be used with the new d3d11 hwaccel decode API. With the new hwaccel API, we don't want surfaces to depend on the decoder (other than the required dimension and format). The old D3D11VA pixfmt uses ID3D11VideoDecoderOutputView pointers, which include the decoder configuration, and thus is incompatible with the new hwaccel API. This patch introduces AV_PIX_FMT_D3D11, which uses ID3D11Texture2D and an index. It's simpler and compatible with the new hwaccel API. The introduced hwcontext supports only the new pixfmt. Frame upload code untested. Significantly based on work by Steve Lhomme <robux4@gmail.com>, but with heavy changes/rewrites. Merges Libav commit `fff90422d1`. Signed-off-by: Diego Biurrun <diego@biurrun.de>	8 years ago
James Almer	e53c9065ca	avutil/tests: remove float_dsp test It's been ported to checkasm. Signed-off-by: James Almer <jamrial@gmail.com>	8 years ago
wm4	fff90422d1	lavu: add new D3D11 pixfmt and hwcontext To be used with the new d3d11 hwaccel decode API. With the new hwaccel API, we don't want surfaces to depend on the decoder (other than the required dimension and format). The old D3D11VA pixfmt uses ID3D11VideoDecoderOutputView pointers, which include the decoder configuration, and thus is incompatible with the new hwaccel API. This patch introduces AV_PIX_FMT_D3D11, which uses ID3D11Texture2D and an index. It's simpler and compatible with the new hwaccel API. The introduced hwcontext supports only the new pixfmt. Frame upload code untested. Significantly based on work by Steve Lhomme <robux4@gmail.com>, but with heavy changes/rewrites. Signed-off-by: Diego Biurrun <diego@biurrun.de>	8 years ago
wm4	532b23f079	videotoolbox: add hwcontext support This adds tons of code for no other benefit than making VideoToolbox support conform with the new hwaccel API (using hw_device_ctx and hw_frames_ctx). Since VideoToolbox decoding does not actually require the user to allocate frames, the new code does mostly nothing. One benefit is that ffmpeg_videotoolbox.c can be dropped once generic hwaccel support for ffmpeg.c is merged from Libav. Does not consider VDA or VideoToolbox encoding. Fun fact: the frame transfer functions are copied from vaapi, as the mapping makes copying generic boilerplate. Mapping itself is not exported by the VT code, because I don't know how to test.	8 years ago
Thomas Turner	3126ca2825	avutil/tests: added selftest for aes_ctr.c Signed-off-by: Thomas Turner <thomastdt@googlemail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Diego Biurrun	92db508307	build: Generate pkg-config files from Make and not from configure This moves work from the configure to the Make stage where it can be parallelized and ensures that pkgconfig files are updated when library versions change. Bug-Id: 449	8 years ago
Thomas Turner	9f76ad2a46	avutil: Added selftest for libavutil/audio_fifo.c Signed-off-by: Thomas Turner <thomastdt@googlemail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Wan-Teh Chang	3703f13333	avutil/tests: run the cpu_init.c test conditionally on HAVE_THREADS Suggested by Diego Biurrun and James Almer. Signed-off-by: Wan-Teh Chang <wtc@google.com> Signed-off-by: James Almer <jamrial@gmail.com>	8 years ago
Michael Niedermayer	1b39a30247	fate: add av_image_check_size() test Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Wan-Teh Chang	2170017a1c	avutil: fix data race in av_get_cpu_flags() Make the one-time initialization in av_get_cpu_flags() thread-safe. The static variables \|flags\|, \|cpuflags_mask\|, and \|checked\| in libavutil/cpu.c are read and written using normal load and store operations. These are considered as data races. The fix is to use atomic load and store operations. Remove the \|checked\| variable because the invalid value of -1 for \|flags\| can be used to indicate the same condition. Rename \|flags\| to \|cpu_flags\| and move it to file scope. The fix can be verified by running the libavutil/tests/cpu_init.c test program under ThreadSanitizer: ./configure --toolchain=clang-tsan make libavutil/tests/cpu_init libavutil/tests/cpu_init There should be no warnings from ThreadSanitizer. Co-author: Dmitry Vyukov of Google, who suggested the data race fix. Signed-off-by: Wan-Teh Chang <wtc@google.com>	8 years ago
Vittorio Giovara	8f58ecc344	lavu: Add AVSphericalMapping type and frame side data While no decoder currently exports spherical information, this type represents a frame property that has to be passed through from container to frames. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	8 years ago
Vittorio Giovara	c70add61d1	lavu: Add AVSphericalMapping type and frame side data While no decoder currently exports spherical information, this type represents a frame property that has to be passed through from container to frames. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	8 years ago
James Almer	d1de725bee	cuda: check for cuda.h when enabled Fixes make checkheaders on systems without the Cuda Toolkit, which was broken after the dynlink changes. Signed-off-by: James Almer <jamrial@gmail.com>	8 years ago
Wan-Teh Chang	d84a21207e	avutil/tests: Add cpu_init.c to check whether the one-time initialization in av_get_cpu_flags() has data races. Co-author: Dmitry Vyukov of Google Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Anton Khirnov	5cc0057f49	lavu: remove the custom atomic API It has been replaced by C11 stdatomic.h and is now unused.	8 years ago
James Almer	13dd5edb88	avutil/hwcontext: use CONFIG_QSV instead of CONFIG_LIBMFX for qsv See "[FFmpeg-devel] [PATCH] hwcontext: add a QSV implementation" Suggested-by: nablet developer <sdk@nablet.com> Signed-off-by: James Almer <jamrial@gmail.com>	8 years ago
Anton Khirnov	59e7361cc7	hwcontext: add a QSV implementation	9 years ago
Anton Khirnov	c46db38cde	hwcontext: add a dxva2 implementation	9 years ago
Diego Biurrun	01621202aa	build: miscellaneous cosmetics Restore alphabetical order in lists, break overly long lines, do some prettyprinting, add some explanatory section comments, group parts together that belong together logically.	9 years ago
Petru Rares Sincraian	124526ba1a	Added a selftest to libavutil/display.c - Check if av_display_rotation_get() gets the correct degrees - Check if av_display_rotation_set() sets the correct matrix - Check if av_display_matrix_flip() changes correct the matrix Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Mark Thompson	551c6775ab	lavu: VAAPI hwcontext implementation Signed-off-by: Anton Khirnov <anton@khirnov.net>	9 years ago
NagaChaitanya Vellanki	285fda0937	Add tests for functions in hash.c Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
NagaChaitanya Vellanki	df4b5f076e	Add test for avpriv_get_trc_function_from_trc function Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Anton Khirnov	d847a40888	hwcontext_cuda/vdpau: add to skipheaders	9 years ago
Anton Khirnov	ad884d1002	hwcontext: add a CUDA implementation	9 years ago
Anton Khirnov	a001ce31bc	hwcontext: add a VDPAU implementation	9 years ago
Anton Khirnov	89923e418b	lavu: add a framework for handling hwaccel frames	9 years ago
Neil Birkbeck	d91718107c	libavutil: add mastering display metadata sidedata Adding mastering display metadata struct to avutil. The mastering display metadata contains information about the mastering display color volume (SMPTE 2086:2014). This info comes from HEVC in the SEI_TYPE_MASTERING_DISPLAY_INFO and is soon to be included in MKV: https://mailarchive.ietf.org/arch/search/?email_list=cellar&gbt=1&index=sZyfPTM-QY69P-0omfOIiTN622o so it is similar to SEI FPA / stereo_mode in MKV and as such this patch follows how AVStereo3D is implemented. I'll add support to HEVC in a follow-up (and MKV when spec is approved). Signed-off-by: Neil Birkbeck <neil.birkbeck@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
erankor	23ac99dc17	libavutil: add aes-ctr support for supporting mp4 cenc encoding/decoding Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Michael Niedermayer	97b8db334a	avutil/rational: Test av_rescale_rnd() with combinations of "special" values Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Andreas Cadhalpun	95687dc310	avutil: install des.h, rc4.h and tree.h as public headers These headers contain functions supposed to be public. libavutil/des.h: av_des_alloc av_des_crypt av_des_init av_des_mac libavutil/rc4.h: av_rc4_alloc av_rc4_crypt av_rc4_init libavutil/tree.h av_tree_destroy av_tree_enumerate av_tree_find av_tree_insert av_tree_node_alloc av_tree_node_size Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>	9 years ago
Vittorio Giovara	2d40968dd3	lavu: Drop deprecated audioconvert.h header Deprecated in 11/2012.	9 years ago

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317 Commits (04858650b1787c132c865530084855b36027b8a7)