Qt 5.13 | Qt WebEngine | ffmpeg

Qt 5.13.2 Reference Documentation

# ffmpeg

Project Homepage

      # License

      Most files in FFmpeg are under the GNU Lesser General Public License version 2.1
      or later (LGPL v2.1+). Read the file `COPYING.LGPLv2.1` for details. Some other
      files have MIT/X11/BSD-style licenses. In combination the LGPL v2.1+ applies to
      FFmpeg.

      Some optional parts of FFmpeg are licensed under the GNU General Public License
      version 2 or later (GPL v2+). See the file `COPYING.GPLv2` for details. None of
      these parts are used by default, you have to explicitly pass `--enable-gpl` to
      configure to activate them. In this case, FFmpeg's license changes to GPL v2+.

      Specifically, the GPL parts of FFmpeg are:

      - libpostproc
      - optional x86 optimization in the files
          - `libavcodec/x86/flac_dsp_gpl.asm`
          - `libavcodec/x86/idct_mmx.c`
          - `libavfilter/x86/vf_removegrain.asm`
      - the following building and testing tools
          - `compat/solaris/make_sunver.pl`
          - `doc/t2h.pm`
          - `doc/texi2pod.pl`
          - `libswresample/swresample-test.c`
          - `tests/checkasm/*`
          - `tests/tiny_ssim.c`
      - the following filters in libavfilter:
          - `vf_blackframe.c`
          - `vf_boxblur.c`
          - `vf_colormatrix.c`
          - `vf_cover_rect.c`
          - `vf_cropdetect.c`
          - `vf_delogo.c`
          - `vf_eq.c`
          - `vf_find_rect.c`
          - `vf_fspp.c`
          - `vf_geq.c`
          - `vf_histeq.c`
          - `vf_hqdn3d.c`
          - `vf_interlace.c`
          - `vf_kerndeint.c`
          - `vf_mcdeint.c`
          - `vf_mpdecimate.c`
          - `vf_owdenoise.c`
          - `vf_perspective.c`
          - `vf_phase.c`
          - `vf_pp.c`
          - `vf_pp7.c`
          - `vf_pullup.c`
          - `vf_repeatfields.c`
          - `vf_sab.c`
          - `vf_smartblur.c`
          - `vf_spp.c`
          - `vf_stereo3d.c`
          - `vf_super2xsai.c`
          - `vf_tinterlace.c`
          - `vf_uspp.c`
          - `vsrc_mptestsrc.c`

      Should you, for whatever reason, prefer to use version 3 of the (L)GPL, then
      the configure parameter `--enable-version3` will activate this licensing option
      for you. Read the file `COPYING.LGPLv3` or, if you have enabled GPL parts,
      `COPYING.GPLv3` to learn the exact legal terms that apply in this case.

      There are a handful of files under other licensing terms, namely:

      * The files `libavcodec/jfdctfst.c`, `libavcodec/jfdctint_template.c` and
        `libavcodec/jrevdct.c` are taken from libjpeg, see the top of the files for
        licensing details. Specifically note that you must credit the IJG in the
        documentation accompanying your program if you only distribute executables.
        You must also indicate any changes including additions and deletions to
        those three files in the documentation.
      * `tests/reference.pnm` is under the expat license.

      ## External libraries

      FFmpeg can be combined with a number of external libraries, which sometimes
      affect the licensing of binaries resulting from the combination.

      ### Compatible libraries

      The following libraries are under GPL:
      - frei0r
      - libcdio
      - librubberband
      - libvidstab
      - libx264
      - libx265
      - libxavs
      - libxvid

      When combining them with FFmpeg, FFmpeg needs to be licensed as GPL as well by
      passing `--enable-gpl` to configure.

      The OpenCORE and VisualOn libraries are under the Apache License 2.0. That
      license is incompatible with the LGPL v2.1 and the GPL v2, but not with
      version 3 of those licenses. So to combine these libraries with FFmpeg, the
      license version needs to be upgraded by passing `--enable-version3` to configure.

      ### Incompatible libraries

      There are certain libraries you can combine with FFmpeg whose licenses are not
      compatible with the GPL and/or the LGPL. If you wish to enable these
      libraries, even in circumstances that their license may be incompatible, pass
      `--enable-nonfree` to configure. But note that if you enable any of these
      libraries the resulting binary will be under a complex license mix that is
      more restrictive than the LGPL and that may result in additional obligations.
      It is possible that these restrictions cause the resulting binary to be
      unredistributable.

      The Fraunhofer FDK AAC and OpenSSL libraries are under licenses which are
      incompatible with the GPLv2 and v3. To the best of our knowledge, they are
      compatible with the LGPL.

      The NVENC library, while its header file is licensed under the compatible MIT
      license, requires a proprietary binary blob at run time, and is deemed to be
      incompatible with the GPL. We are not certain if it is compatible with the
      LGPL, but we require `--enable-nonfree` even with LGPL configurations in case
      it is not.

      ********************************************************************************

      libavcodec/arm/vp8dsp_armv6.S

      VP8 ARMv6 optimisations

      Copyright (c) 2010 Google Inc.
      Copyright (c) 2010 Rob Clark &lt;rob@ti.com&gt;
      Copyright (c) 2011 Mans Rullgard &lt;mans@mansr.com&gt;

      This file is part of FFmpeg.

      FFmpeg is free software; you can redistribute it and/or
      modify it under the terms of the GNU Lesser General Public
      License as published by the Free Software Foundation; either
      version 2.1 of the License, or (at your option) any later version.

      FFmpeg is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      Lesser General Public License for more details.

      You should have received a copy of the GNU Lesser General Public
      License along with FFmpeg; if not, write to the Free Software
      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

      This code was partially ported from libvpx, which uses this license:

      Redistribution and use in source and binary forms, with or without
      modification, are permitted provided that the following conditions are
      met:

      * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.

      * Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in
      the documentation and/or other materials provided with the
      distribution.

      * Neither the name of Google nor the names of its contributors may
      be used to endorse or promote products derived from this software
      without specific prior written permission.

      THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
      "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
      LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
      A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
      HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
      LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
      OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

      ********************************************************************************

      libavutil/avsscanf.c

      Copyright (c) 2005-2014 Rich Felker, et al.

      Permission is hereby granted, free of charge, to any person obtaining
      a copy of this software and associated documentation files (the
      "Software"), to deal in the Software without restriction, including
      without limitation the rights to use, copy, modify, merge, publish,
      distribute, sublicense, and/or sell copies of the Software, and to
      permit persons to whom the Software is furnished to do so, subject to
      the following conditions:

      The above copyright notice and this permission notice shall be
      included in all copies or substantial portions of the Software.

      THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
      EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
      MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
      IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
      CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
      TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
      SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

      ********************************************************************************

      libavcodec/x86/xvididct.asm

      XVID MPEG-4 VIDEO CODEC

       Conversion from gcc syntax to x264asm syntax with modifications
       by Christophe Gisquet &lt;christophe.gisquet@gmail.com&gt;

       ===========     SSE2 inverse discrete cosine transform     ===========

       Copyright(C) 2003 Pascal Massimino &lt;skal@planet-d.net&gt;

       Conversion to gcc syntax with modifications
       by Alexander Strange &lt;astrange@ithinksw.com&gt;

       Originally from dct/x86_asm/fdct_sse2_skal.asm in Xvid.

       Vertical pass is an implementation of the scheme:
        Loeffler C., Ligtenberg A., and Moschytz C.S.:
        Practical Fast 1D DCT Algorithm with Eleven Multiplications,
        Proc. ICASSP 1989, 988-991.

       Horizontal pass is a double 4x4 vector/matrix multiplication,
       (see also Intel's Application Note 922:
        http://developer.intel.com/vtune/cbts/strmsimd/922down.htm
        Copyright (C) 1999 Intel Corporation)

       More details at http://skal.planet-d.net/coding/dct.html

       =======     MMX and XMM forward discrete cosine transform     =======

       Copyright(C) 2001 Peter Ross &lt;pross@xvid.org&gt;

       Originally provided by Intel at AP-922
       http://developer.intel.com/vtune/cbts/strmsimd/922down.htm
       (See more app notes at http://developer.intel.com/vtune/cbts/strmsimd/appnotes.htm)
       but in a limited edition.
       New macro implements a column part for precise iDCT
       The routine precision now satisfies IEEE standard 1180-1990.

       Copyright(C) 2000-2001 Peter Gubanov &lt;peter@elecard.net.ru&gt;
       Rounding trick Copyright(C) 2000 Michel Lespinasse &lt;walken@zoy.org&gt;

       http://www.elecard.com/peter/idct.html
       http://www.linuxvideo.org/mpeg2dec/

       These examples contain code fragments for first stage iDCT 8x8
       (for rows) and first stage DCT 8x8 (for columns)

       conversion to gcc syntax by Michael Niedermayer

       ======================================================================

       This file is part of FFmpeg.

       FFmpeg is free software; you can redistribute it and/or
       modify it under the terms of the GNU Lesser General Public
       License as published by the Free Software Foundation; either
       version 2.1 of the License, or (at your option) any later version.

       FFmpeg is distributed in the hope that it will be useful,
       but WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
       Lesser General Public License for more details.

       You should have received a copy of the GNU Lesser General Public License
       along with FFmpeg; if not, write to the Free Software Foundation,
       Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

      ********************************************************************************

      libavcodec/arm/jrevdct_arm.S

      C-like prototype :
              void j_rev_dct_arm(DCTBLOCK data)

         With DCTBLOCK being a pointer to an array of 64 'signed shorts'

         Copyright (c) 2001 Lionel Ulmer (lionel.ulmer@free.fr / bbrox@bbrox.org)

         Permission is hereby granted, free of charge, to any person obtaining a copy
         of this software and associated documentation files (the "Software"), to deal
         in the Software without restriction, including without limitation the rights
         to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
         copies of the Software, and to permit persons to whom the Software is
         furnished to do so, subject to the following conditions:

         The above copyright notice and this permission notice shall be included in
         all copies or substantial portions of the Software.

         THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
         IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
         FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
         COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
         IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
         CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

      ********************************************************************************

      libavcodec/mips/fft_mips.c

      Copyright (c) 2012
      MIPS Technologies, Inc., California.

      Redistribution and use in source and binary forms, with or without
      modification, are permitted provided that the following conditions
      are met:
      1. Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
      2. Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.
      3. Neither the name of the MIPS Technologies, Inc., nor the names of its
      contributors may be used to endorse or promote products derived from
      this software without specific prior written permission.

      THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
      ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
      FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      SUCH DAMAGE.

      Author:  Stanislav Ocovaj (socovaj@mips.com)
      Author:  Zoran Lukic (zoranl@mips.com)

      Optimized MDCT/IMDCT and FFT transforms

      This file is part of FFmpeg.

      FFmpeg is free software; you can redistribute it and/or
      modify it under the terms of the GNU Lesser General Public
      License as published by the Free Software Foundation; either
      version 2.1 of the License, or (at your option) any later version.

      FFmpeg is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      Lesser General Public License for more details.

      You should have received a copy of the GNU Lesser General Public
      License along with FFmpeg; if not, write to the Free Software
      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

      ********************************************************************************

      libavcodec/mips/amrwbdec_mips.c

      Copyright (c) 2012
      MIPS Technologies, Inc., California.

      Redistribution and use in source and binary forms, with or without
      modification, are permitted provided that the following conditions
      are met:
      1. Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
      2. Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.
      3. Neither the name of the MIPS Technologies, Inc., nor the names of its
      contributors may be used to endorse or promote products derived from
      this software without specific prior written permission.

      THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
      ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
      FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      SUCH DAMAGE.

      Author:  Nedeljko Babic (nbabic@mips.com)

      This file is part of FFmpeg.

      FFmpeg is free software; you can redistribute it and/or
      modify it under the terms of the GNU Lesser General Public
      License as published by the Free Software Foundation; either
      version 2.1 of the License, or (at your option) any later version.

      FFmpeg is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      Lesser General Public License for more details.

      You should have received a copy of the GNU Lesser General Public
      License along with FFmpeg; if not, write to the Free Software
      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

      ********************************************************************************

      libavcodec/mips/celp_math_mips.c

      Copyright (c) 2012
      MIPS Technologies, Inc., California.

      Redistribution and use in source and binary forms, with or without
      modification, are permitted provided that the following conditions
      are met:
      1. Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
      2. Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.
      3. Neither the name of the MIPS Technologies, Inc., nor the names of its
      contributors may be used to endorse or promote products derived from
      this software without specific prior written permission.

      THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
      ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
      FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      SUCH DAMAGE.

      Author:  Nedeljko Babic (nbabic@mips.com)

      Math operations optimized for MIPS

      This file is part of FFmpeg.

      FFmpeg is free software; you can redistribute it and/or
      modify it under the terms of the GNU Lesser General Public
      License as published by the Free Software Foundation; either
      version 2.1 of the License, or (at your option) any later version.

      FFmpeg is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      Lesser General Public License for more details.

      You should have received a copy of the GNU Lesser General Public
      License along with FFmpeg; if not, write to the Free Software
      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

      ********************************************************************************

      libavcodec/mips/mpegaudiodsp_mips_float.c

      Copyright (c) 2012
      MIPS Technologies, Inc., California.

      Redistribution and use in source and binary forms, with or without
      modification, are permitted provided that the following conditions
      are met:
      1. Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
      2. Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.
      3. Neither the name of the MIPS Technologies, Inc., nor the names of its
      contributors may be used to endorse or promote products derived from
      this software without specific prior written permission.

      THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
      ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
      FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      SUCH DAMAGE.

      Author:  Bojan Zivkovic (bojan@mips.com)

      MPEG Audio decoder optimized for MIPS floating-point architecture

      This file is part of FFmpeg.

      FFmpeg is free software; you can redistribute it and/or
      modify it under the terms of the GNU Lesser General Public
      License as published by the Free Software Foundation; either
      version 2.1 of the License, or (at your option) any later version.

      FFmpeg is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      Lesser General Public License for more details.

      You should have received a copy of the GNU Lesser General Public
      License along with FFmpeg; if not, write to the Free Software
      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

      ********************************************************************************

      libswresample/version.h

      Version macros.

      This file is part of libswresample

      libswresample is free software; you can redistribute it and/or
      modify it under the terms of the GNU Lesser General Public
      License as published by the Free Software Foundation; either
      version 2.1 of the License, or (at your option) any later version.

      libswresample is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      Lesser General Public License for more details.

      You should have received a copy of the GNU Lesser General Public
      License along with libswresample; if not, write to the Free Software
      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

      ********************************************************************************

      libavcodec/mips/acelp_filters_mips.c

      Copyright (c) 2012
      MIPS Technologies, Inc., California.

      Redistribution and use in source and binary forms, with or without
      modification, are permitted provided that the following conditions
      are met:
      1. Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
      2. Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.
      3. Neither the name of the MIPS Technologies, Inc., nor the names of its
      contributors may be used to endorse or promote products derived from
      this software without specific prior written permission.

      THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
      ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
      FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      SUCH DAMAGE.

      Author:  Nedeljko Babic (nbabic@mips.com)

      various filters for ACELP-based codecs optimized for MIPS

      This file is part of FFmpeg.

      FFmpeg is free software; you can redistribute it and/or
      modify it under the terms of the GNU Lesser General Public
      License as published by the Free Software Foundation; either
      version 2.1 of the License, or (at your option) any later version.

      FFmpeg is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      Lesser General Public License for more details.

      You should have received a copy of the GNU Lesser General Public
      License along with FFmpeg; if not, write to the Free Software
      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

      ********************************************************************************

      libavformat/oggparsetheora.c

      Copyright (C) 2005  Matthieu CASTET, Alex Beregszaszi

      Permission is hereby granted, free of charge, to any person
      obtaining a copy of this software and associated documentation
      files (the "Software"), to deal in the Software without
      restriction, including without limitation the rights to use, copy,
      modify, merge, publish, distribute, sublicense, and/or sell copies
      of the Software, and to permit persons to whom the Software is
      furnished to do so, subject to the following conditions:

      The above copyright notice and this permission notice shall be
      included in all copies or substantial portions of the Software.

      THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
      EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
      MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
      NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
      HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
      WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
      OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
      DEALINGS IN THE SOFTWARE.

      ********************************************************************************

      libavcodec/mips/acelp_vectors_mips.c

      Copyright (c) 2012
      MIPS Technologies, Inc., California.

      Redistribution and use in source and binary forms, with or without
      modification, are permitted provided that the following conditions
      are met:
      1. Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
      2. Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.
      3. Neither the name of the MIPS Technologies, Inc., nor the names of its
      contributors may be used to endorse or promote products derived from
      this software without specific prior written permission.

      THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
      ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
      FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      SUCH DAMAGE.

      Author:  Nedeljko Babic (nbabic@mips.com)

      adaptive and fixed codebook vector operations for ACELP-based codecs
      optimized for MIPS

      This file is part of FFmpeg.

      FFmpeg is free software; you can redistribute it and/or
      modify it under the terms of the GNU Lesser General Public
      License as published by the Free Software Foundation; either
      version 2.1 of the License, or (at your option) any later version.

      FFmpeg is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      Lesser General Public License for more details.

      You should have received a copy of the GNU Lesser General Public
      License along with FFmpeg; if not, write to the Free Software
      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

      ********************************************************************************

      libavcodec/mips/celp_filters_mips.c

      Copyright (c) 2012
      MIPS Technologies, Inc., California.

      Redistribution and use in source and binary forms, with or without
      modification, are permitted provided that the following conditions
      are met:
      1. Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
      2. Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.
      3. Neither the name of the MIPS Technologies, Inc., nor the names of its
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      THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
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      Author:  Nedeljko Babic (nbabic@mips.com)

      various filters for CELP-based codecs optimized for MIPS

      This file is part of FFmpeg.

      FFmpeg is free software; you can redistribute it and/or
      modify it under the terms of the GNU Lesser General Public
      License as published by the Free Software Foundation; either
      version 2.1 of the License, or (at your option) any later version.

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      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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      You should have received a copy of the GNU Lesser General Public
      License along with FFmpeg; if not, write to the Free Software
      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

      ********************************************************************************

      libswresample/swresample.h

      Copyright (C) 2011-2013 Michael Niedermayer (michaelni@gmx.at)

      This file is part of libswresample

      libswresample is free software; you can redistribute it and/or
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      License as published by the Free Software Foundation; either
      version 2.1 of the License, or (at your option) any later version.

      libswresample is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      Lesser General Public License for more details.

      You should have received a copy of the GNU Lesser General Public
      License along with libswresample; if not, write to the Free Software
      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

      ********************************************************************************

      libavcodec/jfdctfst.c
      libavcodec/jfdctint_template.c
      libavcodec/jrevdct.c

      This file is part of the Independent JPEG Group's software.

      The authors make NO WARRANTY or representation, either express or implied,
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      This software is copyright (C) 1994-1996, Thomas G. Lane.
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      Permission is hereby granted to use, copy, modify, and distribute this
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      (2) If only executable code is distributed, then the accompanying
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      (3) Permission for use of this software is granted only if the user accepts
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      These conditions apply to any software derived from or based on the IJG
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      Permission is NOT granted for the use of any IJG author's name or company
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      We specifically permit and encourage the use of this software as the basis
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      assumed by the product vendor.

      ********************************************************************************

      libavcodec/fft_fixed_32.c
      libavcodec/fft_init_table.c
      libavcodec/fft_table.h
      libavcodec/mdct_fixed_32.c
      libavcodec/mips/aacdec_mips.c
      libavcodec/mips/aacdec_mips.h
      libavcodec/mips/aacpsdsp_mips.c
      libavcodec/mips/aacsbr_mips.c
      libavcodec/mips/aacsbr_mips.h
      libavcodec/mips/amrwbdec_mips.h
      libavcodec/mips/compute_antialias_fixed.h
      libavcodec/mips/compute_antialias_float.h
      libavcodec/mips/lsp_mips.h
      libavcodec/mips/sbrdsp_mips.c
      libavutil/fixed_dsp.c
      libavutil/fixed_dsp.h
      libavutil/mips/float_dsp_mips.c
      libavutil/mips/libm_mips.h
      libavutil/softfloat_tables.h

      Copyright (c) 2012
      MIPS Technologies, Inc., California.

      Redistribution and use in source and binary forms, with or without
      modification, are permitted provided that the following conditions
      are met:
      1. Redistributions of source code must retain the above copyright
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      2. Redistributions in binary form must reproduce the above copyright
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      3. Neither the name of the MIPS Technologies, Inc., nor the names of its
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      THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
      ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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      ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
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      DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      SUCH DAMAGE.

      Authors:
      Branimir Vasic   (bvasic@mips.com)
      Darko Laus       (darko@mips.com)
      Djordje Pesut    (djordje@mips.com)
      Goran Cordasic   (goran@mips.com)
      Nedeljko Babic   (nedeljko.babic imgtec com)
      Mirjana Vulin    (mvulin@mips.com)
      Stanislav Ocovaj (socovaj@mips.com)
      Zoran Lukic      (zoranl@mips.com)

      ********************************************************************************

      libavformat/oggdec.c
      libavformat/oggdec.h
      libavformat/oggparseogm.c
      libavformat/oggparsevorbis.c

      Copyright (C) 2005  Michael Ahlberg, MÃ¥ns RullgÃ¥rd

      Permission is hereby granted, free of charge, to any person
      obtaining a copy of this software and associated documentation
      files (the "Software"), to deal in the Software without
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      The above copyright notice and this permission notice shall be
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      THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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      DEALINGS IN THE SOFTWARE.

      ********************************************************************************

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      KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
      IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
      PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
      LIBRARY IS WITH YOU.  SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
      THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.

        16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
      WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
      AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
      FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
      CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
      LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
      RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
      FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
      SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
      DAMAGES.

                           END OF TERMS AND CONDITIONS

                 How to Apply These Terms to Your New Libraries

        If you develop a new library, and you want it to be of the greatest
      possible use to the public, we recommend making it free software that
      everyone can redistribute and change.  You can do so by permitting
      redistribution under these terms (or, alternatively, under the terms of the
      ordinary General Public License).

        To apply these terms, attach the following notices to the library.  It is
      safest to attach them to the start of each source file to most effectively
      convey the exclusion of warranty; and each file should have at least the
      "copyright" line and a pointer to where the full notice is found.

          &lt;one line to give the library's name and a brief idea of what it does.&gt;
          Copyright (C) &lt;year&gt;  &lt;name of author&gt;

          This library is free software; you can redistribute it and/or
          modify it under the terms of the GNU Lesser General Public
          License as published by the Free Software Foundation; either
          version 2.1 of the License, or (at your option) any later version.

          This library is distributed in the hope that it will be useful,
          but WITHOUT ANY WARRANTY; without even the implied warranty of
          MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
          Lesser General Public License for more details.

          You should have received a copy of the GNU Lesser General Public
          License along with this library; if not, write to the Free Software
          Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

      Also add information on how to contact you by electronic and paper mail.

      You should also get your employer (if you work as a programmer) or your
      school, if any, to sign a "copyright disclaimer" for the library, if
      necessary.  Here is a sample; alter the names:

        Yoyodyne, Inc., hereby disclaims all copyright interest in the
        library `Frob' (a library for tweaking knobs) written by James Random Hacker.

        &lt;signature of Ty Coon&gt;, 1 April 1990
        Ty Coon, President of Vice

      That's all there is to it!