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* avcodec/dca: Unavpriv dca_sample_ratesAndreas Rheinhardt2022-01-04
| | | | | | | | | | | | | | | Said table is 64 bytes long and exported so that it can be used both in libavcodec and libavformat. This commit stops doing so and instead duplicates it for shared builds, because the overhead of exporting the symbol is bigger than 64 bytes. It consists of the length of the name of the symbol (2x24 bytes), two entries in .dynsym (2x24 bytes), two entries for symbol version (2x2 bytes), one hash value in the exporting library (4 bytes) in addition to one entry in the importing library's .got and .rela.dyn (8 + 24 bytes). (The above numbers are for a Linux/GNU/Elf system; the numbers for other platforms may be different.) Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* Merge commit 'abf1c058d1bd0ed1b820ea5e501a4484756f00b0'James Almer2017-11-11
|\ | | | | | | | | | | | | * commit 'abf1c058d1bd0ed1b820ea5e501a4484756f00b0': msvc: Properly specify dllexport for data symbols shared across dll boundaries Merged-by: James Almer <jamrial@gmail.com>
| * msvc: Properly specify dllexport for data symbols shared across dll boundariesMartin Storsjö2017-08-31
| | | | | | | | | | | | | | | | | | We currently only have exported data symbols within libavcodec, but the concept is easy to extend to other libraries if necessary. The attribute declaration needs to be in a private header though, since we can't use CONFIG_SHARED in public installed headers. Signed-off-by: Martin Storsjö <martin@martin.st>
* | avcodec/dca: return standard error codes in avpriv_dca_parse_core_frame_header()James Almer2017-11-01
| | | | | | | | | | | | | | | | This prevents making the DCAParseError enum part of the ABI. Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Reviewed-by: foo86 <foobaz86@gmail.com> Signed-off-by: James Almer <jamrial@gmail.com>
* | avcodec/tak: make buf const in avpriv_dca_parse_core_frame_header()James Almer2017-10-22
| | | | | | | | Signed-off-by: James Almer <jamrial@gmail.com>
* | avcodec/dca: remove GetBitContext usage from ↵James Almer2017-07-21
| | | | | | | | | | | | | | | | | | avpriv_dca_parse_core_frame_header() This prevents potential ABI issues with GetBitContext. Reviewed-by: foo86 <foobaz86@gmail.com> Signed-off-by: James Almer <jamrial@gmail.com>
* | avcodec: add avpriv_dca_parse_core_frame_header()foo862017-07-18
| | | | | | | | | | | | | | | | There are 3 different places where DCA core frame header is parsed: decoder, parser and demuxer. Each one uses ad-hoc code. Add common core frame header parsing function that will be used in all places. Signed-off-by: James Almer <jamrial@gmail.com>
* | avcodec/dca: move bits per sample array to dca.cfoo862017-07-18
| | | | | | | | | | | | | | It will be used by the parser. This change avoids unwanted parser dependency on dcadata. Signed-off-by: James Almer <jamrial@gmail.com>
* | avcodec/dca: move EXSS sampling frequency arrays to dca.cfoo862016-05-26
| | | | | | | | | | | | Avoids unwanted parser dependency on dcadata. Signed-off-by: James Almer <jamrial@gmail.com>
* | avcodec/dca: move channel counter utility into dca.hfoo862016-05-01
| | | | | | | | Signed-off-by: James Almer <jamrial@gmail.com>
* | avcodec/dca: add generic definesfoo862016-01-31
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* | avcodec/dca: remove old decoderfoo862016-01-31
| | | | | | | | | | Remove all files and functions which are not going to be reused, and disable all functions and FATE tests temporarily which will be.
* | Merge commit '40d949677335a564f769823f4afdb7e7a3da8d6b'Hendrik Leppkes2016-01-02
|\| | | | | | | | | | | | | * commit '40d949677335a564f769823f4afdb7e7a3da8d6b': dca: use defines for subband related constants Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
| * dca: use defines for subband related constantsAlexandra Hájková2015-12-31
| | | | | | | | Signed-off-by: Janne Grunau <janne-libav@jannau.net>
* | Merge commit 'aebf07075f4244caf591a3af71e5872fe314e87b'Hendrik Leppkes2016-01-02
|\| | | | | | | | | | | | | * commit 'aebf07075f4244caf591a3af71e5872fe314e87b': dca: change the core to work with integer coefficients. Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
| * dca: change the core to work with integer coefficients.Alexandra Hájková2015-12-23
| | | | | | | | | | | | | | | | | | | | | | | | The DCA core decoder converts integer coefficients read from the bitstream to floats just after reading them (along with dequantization). All the other steps of the audio reconstruction are done with floats which makes the output for the DTS lossless extension (XLL) actually lossy. This patch changes the DCA core to work with integer coefficients until QMF. At this point the integer coefficients are converted to floats. The coefficients for the LFE channel (lfe_data) are not touched. This is the first step for the really lossless XLL decoding.
* | Merge commit '58b42345b38b46d11c32e11d9c57517f99d6a601'Hendrik Leppkes2015-10-10
|\| | | | | | | | | | | | | * commit '58b42345b38b46d11c32e11d9c57517f99d6a601': dcadec: reorganise context data Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
| * dcadec: reorganise context dataAlexandra Khirnova2015-10-07
| | | | | | | | | | | | | | | | | | place primary audio coding header data into DCAAudioHeader structure to make DCAContext clearer and move channel related data to DCAChan structure to make them easier to use by extensions Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* | Merge commit '217e4ff4d1f845b76e44634e29371cd09313d1c2'Michael Niedermayer2015-03-15
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * commit '217e4ff4d1f845b76e44634e29371cd09313d1c2': dca: Support for XLL (lossless extension) Conflicts: Changelog doc/general.texi libavcodec/Makefile libavcodec/dca.h libavcodec/dca_exss.c libavcodec/dcadata.h libavcodec/dcadec.c libavcodec/version.h Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * dca: Support for XLL (lossless extension)Niels Möller2015-03-15
| | | | | | | | | | | | Cleanup and integration by Diego Biurrun. Signed-off-by: Diego Biurrun <diego@biurrun.de>
* | Merge commit '25f613f8be3b51e4396b93cda131e4631ba54302'Michael Niedermayer2015-03-04
|\| | | | | | | | | | | | | | | | | | | | | * commit '25f613f8be3b51e4396b93cda131e4631ba54302': dca: Move syncword definitions to a separate header Conflicts: libavcodec/dca_parser.c libavformat/dtsdec.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * dca: Move syncword definitions to a separate headerDiego Biurrun2015-03-04
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* | Merge commit 'f8c1719771dc4ac2e13e6bc8bf741854a30e3a86'Michael Niedermayer2015-02-17
|\| | | | | | | | | | | | | | | | | | | | | * commit 'f8c1719771dc4ac2e13e6bc8bf741854a30e3a86': dca: Remove separate header for DCA ExSS Conflicts: libavcodec/dca.h libavcodec/dca_exss.h Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * dca: Remove separate header for DCA ExSSDiego Biurrun2015-02-16
| | | | | | | | There is no point in having a separate header for a single declaration.
* | Merge commit 'b339019de4e5f4d3c661bbdba98ae248ab77e2f0'Michael Niedermayer2015-02-14
|\| | | | | | | | | | | | | | | | | | | | | * commit 'b339019de4e5f4d3c661bbdba98ae248ab77e2f0': dca: Split code for handling the EXSS extension off into a separate file Conflicts: libavcodec/Makefile libavcodec/dcadec.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * dca: Split code for handling the EXSS extension off into a separate fileDiego Biurrun2015-02-14
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* | avcodec/dca: Make ff_dca_convert_bitstream() available to libavformat, ↵Michael Niedermayer2014-08-06
| | | | | | | | | | | | needed for dts_probe() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | Merge commit '1db6a080bddd14fed6b29140ecd2e21e42b1c022'Michael Niedermayer2013-03-28
|\| | | | | | | | | | | | | | | | | | | | | * commit '1db6a080bddd14fed6b29140ecd2e21e42b1c022': dca: Move ff_dca_convert_bitstream() to the DCA common code vdpau: wrap codec specific functions in appropiate #ifs Conflicts: libavcodec/Makefile Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * dca: Move ff_dca_convert_bitstream() to the DCA common codeDiego Biurrun2013-03-27
| | | | | | | | This makes the DCA parser and decoder independent.
* | Merge commit 'c0329748b04e1f175dad8c9c2ebf22a5e2dc5b72'Michael Niedermayer2012-10-19
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * commit 'c0329748b04e1f175dad8c9c2ebf22a5e2dc5b72': fate: add a dependency helper macro Add support for building shared libraries with MSVC avcodec: Rename avpriv_frame_rate_tab to ff_mpeg12_frame_rate_tab gxf: Add a local copy of the relevant parts of the frame rate table configure: Split out msvc as a separate target OS aviobuf: Remove a senseless ifdef in avio_seek Conflicts: configure libavcodec/dirac.c libavcodec/mpeg12data.h libavcodec/mpeg12enc.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * Add support for building shared libraries with MSVCMartin Storsjö2012-10-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This requires the makedef perl script by Derek, from the c89-to-c99 repo. That scripts produces a .def file, listing the symbols to be exported, based on the gcc version scripts and the built object files. To properly load non-function symbols from DLL files, the data symbol declarations need to have the attribute __declspec(dllimport) when building the calling code. (On mingw, the linker can fix this up automatically, which is why it has not been an issue so far. If this attribute is omitted, linking actually succeeds, but reads from the table will not produce the desired results at runtime.) MSVC seems to manage to link DLLs (and run properly) even if this attribute is present while building the library itself (which normally isn't recommended) - other object files in the same library manage to link to the symbol (with a small warning at link time, like "warning LNK4049: locally defined symbol _avpriv_mpa_bitrate_tab imported" - it doesn't seem to be possible to squelch this warning), and the definition of the tables themselves produce a warning that can be squelched ("warning C4273: 'avpriv_mpa_bitrate_tab' : inconsistent dll linkage, see previous definition of 'avpriv_mpa_bitrate_tab'). In this setup, mingw isn't able to link object files that refer to data symbols with __declspec(dllimport) without those symbols actually being linked via a DLL (linking avcodec.dll ends up with errors like "undefined reference to `__imp__avpriv_mpa_freq_tab'"). The dllimport declspec isn't needed at all in mingw, so we simply choose not to declare it for other compilers than MSVC that requires it. (If ICL support later requires it, the condition can be extended later to include both of them.) This also implies that code that is built to link to a certain library as a DLL can't link to the same library as a static library. Therefore, we only allow building either static or shared but not both at the same time. (That is, static libraries as such can be, and actually are, built - this is used for linking the test tools to internal symbols in the libraries - but e.g. libavformat built to link to libavcodec as a DLL cannot link statically to libavcodec.) Also, linking to DLLs is slightly different from linking to shared libraries on other platforms. DLLs use a thing called import libraries, which is basically a stub library allowing the linker to know which symbols exist in the DLL and what name the DLL will have at runtime. In mingw/gcc, the import library is usually named libfoo.dll.a, which goes next to a static library named libfoo.a. This allows gcc to pick the dynamic one, if available, from the normal -lfoo switches, just as it does for libfoo.a vs libfoo.so on Unix. On MSVC however, you need to literally specify the name of the import library instead of the static library. Signed-off-by: Martin Storsjö <martin@martin.st>
* | Merge remote-tracking branch 'qatar/master'Michael Niedermayer2012-08-01
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * qatar/master: dca: Switch dca_sample_rates to avpriv_ prefix; it is used across libs ARM: use =const syntax instead of explicit literal pools ARM: use standard syntax for all LDRD/STRD instructions fft: port FFT/IMDCT 3dnow functions to yasm, and disable on x86-64. dct-test: allow to compile without HAVE_INLINE_ASM. x86/dsputilenc: bury inline asm under HAVE_INLINE_ASM. dca: Move tables used outside of dcadec.c to a separate file. dca: Rename dca.c ---> dcadec.c x86: h264dsp: Remove unused variable ff_pb_3_1 apetag: change a forgotten return to return 0 Conflicts: libavcodec/Makefile libavcodec/dca.c libavcodec/x86/fft_3dn.c libavcodec/x86/fft_3dn2.c libavcodec/x86/fft_mmx.asm Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * dca: Switch dca_sample_rates to avpriv_ prefix; it is used across libsDiego Biurrun2012-08-01
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| * dca: Move tables used outside of dcadec.c to a separate file.Diego Biurrun2012-08-01
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| * Replace FFmpeg with Libav in licence headersMans Rullgard2011-03-19
|/ | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* Add support for parsing and decoding DCA-HD streams.Kostya Shishkov2008-11-29
| | | | Originally committed as revision 15951 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Globally rename the header inclusion guard names.Stefano Sabatini2008-08-31
| | | | | | | | | Consistently apply this rule: the guard name is obtained from the filename by stripping the leading "lib", converting '/' and '.' to '_' and uppercasing the resulting name. Guard names in the root directory have to be prefixed by "FFMPEG_". Originally committed as revision 15120 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Add FFMPEG_ prefix to all multiple inclusion guards.Diego Biurrun2007-10-17
| | | | Originally committed as revision 10765 to svn://svn.ffmpeg.org/ffmpeg/trunk
* add a comment to indicate which #endif belong to which #defineGuillaume Poirier2007-06-17
| | | | Originally committed as revision 9356 to svn://svn.ffmpeg.org/ffmpeg/trunk
* add multiple inclusion guards to headersMåns Rullgård2007-06-17
| | | | Originally committed as revision 9345 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Move dca parser to its own file.Diego Biurrun2007-05-03
Originally committed as revision 8881 to svn://svn.ffmpeg.org/ffmpeg/trunk
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