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* dcadec: reorganise context dataAlexandra Khirnova2015-10-071-26/+44
| | | | | | | | | 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>
* dca: Support for XLL (lossless extension)Niels Möller2015-03-151-2/+99
| | | | | | Cleanup and integration by Diego Biurrun. Signed-off-by: Diego Biurrun <diego@biurrun.de>
* dca: Move syncword definitions to a separate headerDiego Biurrun2015-03-041-9/+0
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* dca: Remove separate header for DCA ExSSDiego Biurrun2015-02-161-0/+2
| | | | There is no point in having a separate header for a single declaration.
* dca: Split code for handling the EXSS extension off into a separate fileDiego Biurrun2015-02-141-0/+149
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* dca: Move ff_dca_convert_bitstream() to the DCA common codeDiego Biurrun2013-03-271-0/+6
| | | | This makes the DCA parser and decoder independent.
* Add support for building shared libraries with MSVCMartin Storsjö2012-10-181-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* dca: Switch dca_sample_rates to avpriv_ prefix; it is used across libsDiego Biurrun2012-08-011-1/+1
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* dca: Move tables used outside of dcadec.c to a separate file.Diego Biurrun2012-08-011-0/+4
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* Replace FFmpeg with Libav in licence headersMans Rullgard2011-03-191-4/+4
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* Add support for parsing and decoding DCA-HD streams.Kostya Shishkov2008-11-291-0/+3
| | | | Originally committed as revision 15951 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Globally rename the header inclusion guard names.Stefano Sabatini2008-08-311-3/+3
| | | | | | | | | 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 Biurrun2007-10-171-3/+3
| | | | Originally committed as revision 10765 to svn://svn.ffmpeg.org/ffmpeg/trunk
* add a comment to indicate which #endif belong to which #defineGuillaume Poirier2007-06-171-1/+1
| | | | Originally committed as revision 9356 to svn://svn.ffmpeg.org/ffmpeg/trunk
* add multiple inclusion guards to headersMåns Rullgård2007-06-171-0/+5
| | | | Originally committed as revision 9345 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Move dca parser to its own file.Diego Biurrun2007-05-031-0/+29
Originally committed as revision 8881 to svn://svn.ffmpeg.org/ffmpeg/trunk
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