/*

  * Provide registration of all codecs, parsers and bitstream filters for libavcodec.

  * Copyright (c) 2002 Fabrice Bellard

  *

  * 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

  */

 
 /**

  * @file

  * Provide registration of all codecs, parsers and bitstream filters for libavcodec.

  */
 

 #include "config.h"

 #include "libavutil/thread.h"

 #include "avcodec.h"
 #include "version.h"

 #define REGISTER_HWACCEL(X, x)                                          \
     {                                                                   \
         extern AVHWAccel ff_##x##_hwaccel;                              \
         if (CONFIG_##X##_HWACCEL)                                       \
             av_register_hwaccel(&ff_##x##_hwaccel);                     \
     }

 #define REGISTER_ENCODER(X, x)                                          \
     {                                                                   \
         extern AVCodec ff_##x##_encoder;                                \
         if (CONFIG_##X##_ENCODER)                                       \
             avcodec_register(&ff_##x##_encoder);                        \
     }

 #define REGISTER_DECODER(X, x)                                          \
     {                                                                   \
         extern AVCodec ff_##x##_decoder;                                \
         if (CONFIG_##X##_DECODER)                                       \
             avcodec_register(&ff_##x##_decoder);                        \
     }
 

 #define REGISTER_ENCDEC(X, x) REGISTER_ENCODER(X, x); REGISTER_DECODER(X, x)

 
 #define REGISTER_PARSER(X, x)                                           \
     {                                                                   \
         extern AVCodecParser ff_##x##_parser;                           \
         if (CONFIG_##X##_PARSER)                                        \
             av_register_codec_parser(&ff_##x##_parser);                 \
     }
 

 static void register_all(void)

 {

     /* hardware accelerators */

     REGISTER_HWACCEL(H263_VAAPI,        h263_vaapi);

     REGISTER_HWACCEL(H263_VIDEOTOOLBOX, h263_videotoolbox);

     REGISTER_HWACCEL(H264_CUVID,        h264_cuvid);

     REGISTER_HWACCEL(H264_D3D11VA,      h264_d3d11va);

     REGISTER_HWACCEL(H264_D3D11VA2,     h264_d3d11va2);

     REGISTER_HWACCEL(H264_DXVA2,        h264_dxva2);

     REGISTER_HWACCEL(H264_MEDIACODEC,   h264_mediacodec);

     REGISTER_HWACCEL(H264_MMAL,         h264_mmal);

     REGISTER_HWACCEL(H264_QSV,          h264_qsv);

     REGISTER_HWACCEL(H264_VAAPI,        h264_vaapi);
     REGISTER_HWACCEL(H264_VDA,          h264_vda);

     REGISTER_HWACCEL(H264_VDA_OLD,      h264_vda_old);

     REGISTER_HWACCEL(H264_VDPAU,        h264_vdpau);

     REGISTER_HWACCEL(H264_VIDEOTOOLBOX, h264_videotoolbox);

     REGISTER_HWACCEL(HEVC_CUVID,        hevc_cuvid);

     REGISTER_HWACCEL(HEVC_D3D11VA,      hevc_d3d11va);

     REGISTER_HWACCEL(HEVC_D3D11VA2,     hevc_d3d11va2);

     REGISTER_HWACCEL(HEVC_DXVA2,        hevc_dxva2);

     REGISTER_HWACCEL(HEVC_MEDIACODEC,   hevc_mediacodec);

     REGISTER_HWACCEL(HEVC_QSV,          hevc_qsv);

     REGISTER_HWACCEL(HEVC_VAAPI,        hevc_vaapi);

     REGISTER_HWACCEL(HEVC_VDPAU,        hevc_vdpau);

     REGISTER_HWACCEL(HEVC_VIDEOTOOLBOX, hevc_videotoolbox);

     REGISTER_HWACCEL(MJPEG_CUVID,       mjpeg_cuvid);
     REGISTER_HWACCEL(MPEG1_CUVID,       mpeg1_cuvid);

     REGISTER_HWACCEL(MPEG1_XVMC,        mpeg1_xvmc);

     REGISTER_HWACCEL(MPEG1_VDPAU,       mpeg1_vdpau);

     REGISTER_HWACCEL(MPEG1_VIDEOTOOLBOX, mpeg1_videotoolbox);

     REGISTER_HWACCEL(MPEG2_CUVID,       mpeg2_cuvid);

     REGISTER_HWACCEL(MPEG2_XVMC,        mpeg2_xvmc);

     REGISTER_HWACCEL(MPEG2_D3D11VA,     mpeg2_d3d11va);

     REGISTER_HWACCEL(MPEG2_D3D11VA2,    mpeg2_d3d11va2);

     REGISTER_HWACCEL(MPEG2_DXVA2,       mpeg2_dxva2);

     REGISTER_HWACCEL(MPEG2_MMAL,        mpeg2_mmal);

     REGISTER_HWACCEL(MPEG2_QSV,         mpeg2_qsv);

     REGISTER_HWACCEL(MPEG2_VAAPI,       mpeg2_vaapi);

     REGISTER_HWACCEL(MPEG2_VDPAU,       mpeg2_vdpau);

     REGISTER_HWACCEL(MPEG2_VIDEOTOOLBOX, mpeg2_videotoolbox);

     REGISTER_HWACCEL(MPEG2_MEDIACODEC,  mpeg2_mediacodec);

     REGISTER_HWACCEL(MPEG4_CUVID,       mpeg4_cuvid);

     REGISTER_HWACCEL(MPEG4_MEDIACODEC,  mpeg4_mediacodec);

     REGISTER_HWACCEL(MPEG4_MMAL,        mpeg4_mmal);

     REGISTER_HWACCEL(MPEG4_VAAPI,       mpeg4_vaapi);

     REGISTER_HWACCEL(MPEG4_VDPAU,       mpeg4_vdpau);

     REGISTER_HWACCEL(MPEG4_VIDEOTOOLBOX, mpeg4_videotoolbox);

     REGISTER_HWACCEL(VC1_CUVID,         vc1_cuvid);

     REGISTER_HWACCEL(VC1_D3D11VA,       vc1_d3d11va);

     REGISTER_HWACCEL(VC1_D3D11VA2,      vc1_d3d11va2);

     REGISTER_HWACCEL(VC1_DXVA2,         vc1_dxva2);
     REGISTER_HWACCEL(VC1_VAAPI,         vc1_vaapi);

     REGISTER_HWACCEL(VC1_VDPAU,         vc1_vdpau);

     REGISTER_HWACCEL(VC1_MMAL,          vc1_mmal);

     REGISTER_HWACCEL(VC1_QSV,           vc1_qsv);

     REGISTER_HWACCEL(VP8_CUVID,         vp8_cuvid);

     REGISTER_HWACCEL(VP8_MEDIACODEC,    vp8_mediacodec);

     REGISTER_HWACCEL(VP8_QSV,           vp8_qsv);

     REGISTER_HWACCEL(VP9_CUVID,         vp9_cuvid);

     REGISTER_HWACCEL(VP9_D3D11VA,       vp9_d3d11va);

     REGISTER_HWACCEL(VP9_D3D11VA2,      vp9_d3d11va2);

     REGISTER_HWACCEL(VP9_DXVA2,         vp9_dxva2);

     REGISTER_HWACCEL(VP9_MEDIACODEC,    vp9_mediacodec);

     REGISTER_HWACCEL(VP9_VAAPI,         vp9_vaapi);

     REGISTER_HWACCEL(WMV3_D3D11VA,      wmv3_d3d11va);

     REGISTER_HWACCEL(WMV3_D3D11VA2,     wmv3_d3d11va2);

     REGISTER_HWACCEL(WMV3_DXVA2,        wmv3_dxva2);
     REGISTER_HWACCEL(WMV3_VAAPI,        wmv3_vaapi);

     REGISTER_HWACCEL(WMV3_VDPAU,        wmv3_vdpau);

     /* video codecs */

     REGISTER_ENCODER(A64MULTI,          a64multi);
     REGISTER_ENCODER(A64MULTI5,         a64multi5);
     REGISTER_DECODER(AASC,              aasc);

     REGISTER_DECODER(AIC,               aic);

     REGISTER_ENCDEC (ALIAS_PIX,         alias_pix);

     REGISTER_ENCDEC (AMV,               amv);

     REGISTER_DECODER(ANM,               anm);
     REGISTER_DECODER(ANSI,              ansi);

     REGISTER_ENCDEC (APNG,              apng);

     REGISTER_ENCDEC (ASV1,              asv1);
     REGISTER_ENCDEC (ASV2,              asv2);
     REGISTER_DECODER(AURA,              aura);
     REGISTER_DECODER(AURA2,             aura2);

     REGISTER_ENCDEC (AVRP,              avrp);
     REGISTER_DECODER(AVRN,              avrn);

     REGISTER_DECODER(AVS,               avs);

     REGISTER_ENCDEC (AVUI,              avui);
     REGISTER_ENCDEC (AYUV,              ayuv);

     REGISTER_DECODER(BETHSOFTVID,       bethsoftvid);
     REGISTER_DECODER(BFI,               bfi);
     REGISTER_DECODER(BINK,              bink);
     REGISTER_ENCDEC (BMP,               bmp);
     REGISTER_DECODER(BMV_VIDEO,         bmv_video);

     REGISTER_DECODER(BRENDER_PIX,       brender_pix);

     REGISTER_DECODER(C93,               c93);
     REGISTER_DECODER(CAVS,              cavs);
     REGISTER_DECODER(CDGRAPHICS,        cdgraphics);
     REGISTER_DECODER(CDXL,              cdxl);

     REGISTER_DECODER(CFHD,              cfhd);

     REGISTER_ENCDEC (CINEPAK,           cinepak);

     REGISTER_DECODER(CLEARVIDEO,        clearvideo);

     REGISTER_ENCDEC (CLJR,              cljr);
     REGISTER_DECODER(CLLC,              cllc);
     REGISTER_ENCDEC (COMFORTNOISE,      comfortnoise);

     REGISTER_DECODER(CPIA,              cpia);

     REGISTER_DECODER(CSCD,              cscd);
     REGISTER_DECODER(CYUV,              cyuv);

     REGISTER_DECODER(DDS,               dds);

     REGISTER_DECODER(DFA,               dfa);

     REGISTER_DECODER(DIRAC,             dirac);

     REGISTER_ENCDEC (DNXHD,             dnxhd);
     REGISTER_ENCDEC (DPX,               dpx);
     REGISTER_DECODER(DSICINVIDEO,       dsicinvideo);

     REGISTER_DECODER(DVAUDIO,           dvaudio);

     REGISTER_ENCDEC (DVVIDEO,           dvvideo);
     REGISTER_DECODER(DXA,               dxa);
     REGISTER_DECODER(DXTORY,            dxtory);

     REGISTER_DECODER(DXV,               dxv);

     REGISTER_DECODER(EACMV,             eacmv);
     REGISTER_DECODER(EAMAD,             eamad);
     REGISTER_DECODER(EATGQ,             eatgq);
     REGISTER_DECODER(EATGV,             eatgv);
     REGISTER_DECODER(EATQI,             eatqi);
     REGISTER_DECODER(EIGHTBPS,          eightbps);
     REGISTER_DECODER(EIGHTSVX_EXP,      eightsvx_exp);
     REGISTER_DECODER(EIGHTSVX_FIB,      eightsvx_fib);
     REGISTER_DECODER(ESCAPE124,         escape124);

     REGISTER_DECODER(ESCAPE130,         escape130);
     REGISTER_DECODER(EXR,               exr);

     REGISTER_ENCDEC (FFV1,              ffv1);
     REGISTER_ENCDEC (FFVHUFF,           ffvhuff);

     REGISTER_DECODER(FIC,               fic);

     REGISTER_ENCDEC (FITS,              fits);

     REGISTER_ENCDEC (FLASHSV,           flashsv);

     REGISTER_ENCDEC (FLASHSV2,          flashsv2);

     REGISTER_DECODER(FLIC,              flic);
     REGISTER_ENCDEC (FLV,               flv);

     REGISTER_DECODER(FMVC,              fmvc);

     REGISTER_DECODER(FOURXM,            fourxm);
     REGISTER_DECODER(FRAPS,             fraps);
     REGISTER_DECODER(FRWU,              frwu);

     REGISTER_DECODER(G2M,               g2m);

     REGISTER_DECODER(GDV,               gdv);

     REGISTER_ENCDEC (GIF,               gif);
     REGISTER_ENCDEC (H261,              h261);
     REGISTER_ENCDEC (H263,              h263);
     REGISTER_DECODER(H263I,             h263i);

     REGISTER_ENCDEC (H263P,             h263p);

     REGISTER_DECODER(H263_V4L2M2M,      h263_v4l2m2m);

     REGISTER_DECODER(H264,              h264);

     REGISTER_DECODER(H264_CRYSTALHD,    h264_crystalhd);

     REGISTER_DECODER(H264_V4L2M2M,      h264_v4l2m2m);

     REGISTER_DECODER(H264_MEDIACODEC,   h264_mediacodec);

     REGISTER_DECODER(H264_MMAL,         h264_mmal);

     REGISTER_DECODER(H264_QSV,          h264_qsv);

     REGISTER_DECODER(H264_RKMPP,        h264_rkmpp);

     REGISTER_DECODER(H264_VDA,          h264_vda);

 #if FF_API_VDPAU

     REGISTER_DECODER(H264_VDPAU,        h264_vdpau);

 #endif

     REGISTER_ENCDEC (HAP,               hap);

     REGISTER_DECODER(HEVC,              hevc);

     REGISTER_DECODER(HEVC_QSV,          hevc_qsv);

     REGISTER_DECODER(HEVC_RKMPP,        hevc_rkmpp);

     REGISTER_DECODER(HEVC_V4L2M2M,      hevc_v4l2m2m);

     REGISTER_DECODER(HNM4_VIDEO,        hnm4_video);

     REGISTER_DECODER(HQ_HQA,            hq_hqa);

     REGISTER_DECODER(HQX,               hqx);

     REGISTER_ENCDEC (HUFFYUV,           huffyuv);
     REGISTER_DECODER(IDCIN,             idcin);
     REGISTER_DECODER(IFF_ILBM,          iff_ilbm);
     REGISTER_DECODER(INDEO2,            indeo2);
     REGISTER_DECODER(INDEO3,            indeo3);
     REGISTER_DECODER(INDEO4,            indeo4);
     REGISTER_DECODER(INDEO5,            indeo5);
     REGISTER_DECODER(INTERPLAY_VIDEO,   interplay_video);

     REGISTER_ENCDEC (JPEG2000,          jpeg2000);

     REGISTER_ENCDEC (JPEGLS,            jpegls);
     REGISTER_DECODER(JV,                jv);
     REGISTER_DECODER(KGV1,              kgv1);
     REGISTER_DECODER(KMVC,              kmvc);
     REGISTER_DECODER(LAGARITH,          lagarith);
     REGISTER_ENCODER(LJPEG,             ljpeg);
     REGISTER_DECODER(LOCO,              loco);

     REGISTER_DECODER(M101,              m101);

     REGISTER_DECODER(MAGICYUV,          magicyuv);

     REGISTER_DECODER(MDEC,              mdec);
     REGISTER_DECODER(MIMIC,             mimic);
     REGISTER_ENCDEC (MJPEG,             mjpeg);
     REGISTER_DECODER(MJPEGB,            mjpegb);
     REGISTER_DECODER(MMVIDEO,           mmvideo);
     REGISTER_DECODER(MOTIONPIXELS,      motionpixels);

 #if FF_API_XVMC

     REGISTER_DECODER(MPEG_XVMC,         mpeg_xvmc);

 #endif /* FF_API_XVMC */

     REGISTER_ENCDEC (MPEG1VIDEO,        mpeg1video);
     REGISTER_ENCDEC (MPEG2VIDEO,        mpeg2video);
     REGISTER_ENCDEC (MPEG4,             mpeg4);

     REGISTER_DECODER(MPEG4_CRYSTALHD,   mpeg4_crystalhd);

     REGISTER_DECODER(MPEG4_V4L2M2M,     mpeg4_v4l2m2m);

     REGISTER_DECODER(MPEG4_MMAL,        mpeg4_mmal);

 #if FF_API_VDPAU

     REGISTER_DECODER(MPEG4_VDPAU,       mpeg4_vdpau);

 #endif

     REGISTER_DECODER(MPEGVIDEO,         mpegvideo);

 #if FF_API_VDPAU

     REGISTER_DECODER(MPEG_VDPAU,        mpeg_vdpau);
     REGISTER_DECODER(MPEG1_VDPAU,       mpeg1_vdpau);

 #endif

     REGISTER_DECODER(MPEG1_V4L2M2M,     mpeg1_v4l2m2m);

     REGISTER_DECODER(MPEG2_MMAL,        mpeg2_mmal);

     REGISTER_DECODER(MPEG2_CRYSTALHD,   mpeg2_crystalhd);

     REGISTER_DECODER(MPEG2_V4L2M2M,     mpeg2_v4l2m2m);

     REGISTER_DECODER(MPEG2_QSV,         mpeg2_qsv);

     REGISTER_DECODER(MPEG2_MEDIACODEC,  mpeg2_mediacodec);

     REGISTER_DECODER(MSA1,              msa1);

     REGISTER_DECODER(MSCC,              mscc);

     REGISTER_DECODER(MSMPEG4V1,         msmpeg4v1);
     REGISTER_ENCDEC (MSMPEG4V2,         msmpeg4v2);
     REGISTER_ENCDEC (MSMPEG4V3,         msmpeg4v3);

     REGISTER_DECODER(MSMPEG4_CRYSTALHD, msmpeg4_crystalhd);

     REGISTER_DECODER(MSRLE,             msrle);
     REGISTER_DECODER(MSS1,              mss1);
     REGISTER_DECODER(MSS2,              mss2);

     REGISTER_ENCDEC (MSVIDEO1,          msvideo1);

     REGISTER_DECODER(MSZH,              mszh);
     REGISTER_DECODER(MTS2,              mts2);

     REGISTER_DECODER(MVC1,              mvc1);
     REGISTER_DECODER(MVC2,              mvc2);

     REGISTER_DECODER(MXPEG,             mxpeg);
     REGISTER_DECODER(NUV,               nuv);

     REGISTER_DECODER(PAF_VIDEO,         paf_video);

     REGISTER_ENCDEC (PAM,               pam);
     REGISTER_ENCDEC (PBM,               pbm);
     REGISTER_ENCDEC (PCX,               pcx);
     REGISTER_ENCDEC (PGM,               pgm);
     REGISTER_ENCDEC (PGMYUV,            pgmyuv);
     REGISTER_DECODER(PICTOR,            pictor);

     REGISTER_DECODER(PIXLET,            pixlet);

     REGISTER_ENCDEC (PNG,               png);
     REGISTER_ENCDEC (PPM,               ppm);
     REGISTER_ENCDEC (PRORES,            prores);

     REGISTER_ENCODER(PRORES_AW,         prores_aw);
     REGISTER_ENCODER(PRORES_KS,         prores_ks);

     REGISTER_DECODER(PRORES_LGPL,       prores_lgpl);

     REGISTER_DECODER(PSD,               psd);

     REGISTER_DECODER(PTX,               ptx);
     REGISTER_DECODER(QDRAW,             qdraw);
     REGISTER_DECODER(QPEG,              qpeg);
     REGISTER_ENCDEC (QTRLE,             qtrle);

     REGISTER_ENCDEC (R10K,              r10k);
     REGISTER_ENCDEC (R210,              r210);

     REGISTER_ENCDEC (RAWVIDEO,          rawvideo);
     REGISTER_DECODER(RL2,               rl2);
     REGISTER_ENCDEC (ROQ,               roq);
     REGISTER_DECODER(RPZA,              rpza);

     REGISTER_DECODER(RSCC,              rscc);

     REGISTER_ENCDEC (RV10,              rv10);
     REGISTER_ENCDEC (RV20,              rv20);
     REGISTER_DECODER(RV30,              rv30);
     REGISTER_DECODER(RV40,              rv40);

     REGISTER_ENCDEC (S302M,             s302m);

     REGISTER_DECODER(SANM,              sanm);

     REGISTER_DECODER(SCPR,              scpr);

     REGISTER_DECODER(SCREENPRESSO,      screenpresso);

     REGISTER_DECODER(SDX2_DPCM,         sdx2_dpcm);

     REGISTER_ENCDEC (SGI,               sgi);

     REGISTER_DECODER(SGIRLE,            sgirle);

     REGISTER_DECODER(SHEERVIDEO,        sheervideo);

     REGISTER_DECODER(SMACKER,           smacker);
     REGISTER_DECODER(SMC,               smc);

     REGISTER_DECODER(SMVJPEG,           smvjpeg);

     REGISTER_ENCDEC (SNOW,              snow);
     REGISTER_DECODER(SP5X,              sp5x);

     REGISTER_DECODER(SPEEDHQ,           speedhq);

     REGISTER_DECODER(SRGC,              srgc);

     REGISTER_ENCDEC (SUNRAST,           sunrast);
     REGISTER_ENCDEC (SVQ1,              svq1);
     REGISTER_DECODER(SVQ3,              svq3);
     REGISTER_ENCDEC (TARGA,             targa);

     REGISTER_DECODER(TARGA_Y216,        targa_y216);

     REGISTER_DECODER(TDSC,              tdsc);

     REGISTER_DECODER(THEORA,            theora);
     REGISTER_DECODER(THP,               thp);
     REGISTER_DECODER(TIERTEXSEQVIDEO,   tiertexseqvideo);
     REGISTER_ENCDEC (TIFF,              tiff);
     REGISTER_DECODER(TMV,               tmv);
     REGISTER_DECODER(TRUEMOTION1,       truemotion1);
     REGISTER_DECODER(TRUEMOTION2,       truemotion2);

     REGISTER_DECODER(TRUEMOTION2RT,     truemotion2rt);

     REGISTER_DECODER(TSCC,              tscc);
     REGISTER_DECODER(TSCC2,             tscc2);
     REGISTER_DECODER(TXD,               txd);
     REGISTER_DECODER(ULTI,              ulti);
     REGISTER_ENCDEC (UTVIDEO,           utvideo);
     REGISTER_ENCDEC (V210,              v210);
     REGISTER_DECODER(V210X,             v210x);

     REGISTER_ENCDEC (V308,              v308);
     REGISTER_ENCDEC (V408,              v408);

     REGISTER_ENCDEC (V410,              v410);
     REGISTER_DECODER(VB,                vb);
     REGISTER_DECODER(VBLE,              vble);
     REGISTER_DECODER(VC1,               vc1);

     REGISTER_DECODER(VC1_CRYSTALHD,     vc1_crystalhd);

 #if FF_API_VDPAU

     REGISTER_DECODER(VC1_VDPAU,         vc1_vdpau);

 #endif

     REGISTER_DECODER(VC1IMAGE,          vc1image);

     REGISTER_DECODER(VC1_MMAL,          vc1_mmal);

     REGISTER_DECODER(VC1_QSV,           vc1_qsv);

     REGISTER_DECODER(VC1_V4L2M2M,       vc1_v4l2m2m);

     REGISTER_ENCODER(VC2,               vc2);

     REGISTER_DECODER(VCR1,              vcr1);
     REGISTER_DECODER(VMDVIDEO,          vmdvideo);
     REGISTER_DECODER(VMNC,              vmnc);
     REGISTER_DECODER(VP3,               vp3);
     REGISTER_DECODER(VP5,               vp5);
     REGISTER_DECODER(VP6,               vp6);
     REGISTER_DECODER(VP6A,              vp6a);
     REGISTER_DECODER(VP6F,              vp6f);

     REGISTER_DECODER(VP7,               vp7);

     REGISTER_DECODER(VP8,               vp8);

     REGISTER_DECODER(VP8_RKMPP,         vp8_rkmpp);

     REGISTER_DECODER(VP8_V4L2M2M,       vp8_v4l2m2m);

     REGISTER_DECODER(VP9,               vp9);

     REGISTER_DECODER(VP9_RKMPP,         vp9_rkmpp);

     REGISTER_DECODER(VP9_V4L2M2M,       vp9_v4l2m2m);

     REGISTER_DECODER(VQA,               vqa);

     REGISTER_DECODER(BITPACKED,         bitpacked);

     REGISTER_DECODER(WEBP,              webp);

     REGISTER_ENCDEC (WRAPPED_AVFRAME,   wrapped_avframe);

     REGISTER_ENCDEC (WMV1,              wmv1);
     REGISTER_ENCDEC (WMV2,              wmv2);
     REGISTER_DECODER(WMV3,              wmv3);

     REGISTER_DECODER(WMV3_CRYSTALHD,    wmv3_crystalhd);

 #if FF_API_VDPAU

     REGISTER_DECODER(WMV3_VDPAU,        wmv3_vdpau);

 #endif

     REGISTER_DECODER(WMV3IMAGE,         wmv3image);
     REGISTER_DECODER(WNV1,              wnv1);
     REGISTER_DECODER(XAN_WC3,           xan_wc3);
     REGISTER_DECODER(XAN_WC4,           xan_wc4);

     REGISTER_ENCDEC (XBM,               xbm);
     REGISTER_ENCDEC (XFACE,             xface);

     REGISTER_DECODER(XL,                xl);

     REGISTER_DECODER(XPM,               xpm);

     REGISTER_ENCDEC (XWD,               xwd);

     REGISTER_ENCDEC (Y41P,              y41p);

     REGISTER_DECODER(YLC,               ylc);

     REGISTER_DECODER(YOP,               yop);

     REGISTER_ENCDEC (YUV4,              yuv4);

     REGISTER_DECODER(ZERO12V,           zero12v);

     REGISTER_DECODER(ZEROCODEC,         zerocodec);
     REGISTER_ENCDEC (ZLIB,              zlib);
     REGISTER_ENCDEC (ZMBV,              zmbv);

     /* audio codecs */

     REGISTER_ENCDEC (AAC,               aac);

     REGISTER_DECODER(AAC_FIXED,         aac_fixed);

     REGISTER_DECODER(AAC_LATM,          aac_latm);
     REGISTER_ENCDEC (AC3,               ac3);

     REGISTER_ENCDEC (AC3_FIXED,         ac3_fixed);

     REGISTER_ENCDEC (ALAC,              alac);
     REGISTER_DECODER(ALS,               als);
     REGISTER_DECODER(AMRNB,             amrnb);
     REGISTER_DECODER(AMRWB,             amrwb);
     REGISTER_DECODER(APE,               ape);
     REGISTER_DECODER(ATRAC1,            atrac1);
     REGISTER_DECODER(ATRAC3,            atrac3);

     REGISTER_DECODER(ATRAC3AL,          atrac3al);

     REGISTER_DECODER(ATRAC3P,           atrac3p);

     REGISTER_DECODER(ATRAC3PAL,         atrac3pal);

     REGISTER_DECODER(BINKAUDIO_DCT,     binkaudio_dct);
     REGISTER_DECODER(BINKAUDIO_RDFT,    binkaudio_rdft);
     REGISTER_DECODER(BMV_AUDIO,         bmv_audio);
     REGISTER_DECODER(COOK,              cook);

     REGISTER_ENCDEC (DCA,               dca);

     REGISTER_DECODER(DOLBY_E,           dolby_e);

     REGISTER_DECODER(DSD_LSBF,          dsd_lsbf);
     REGISTER_DECODER(DSD_MSBF,          dsd_msbf);
     REGISTER_DECODER(DSD_LSBF_PLANAR,   dsd_lsbf_planar);
     REGISTER_DECODER(DSD_MSBF_PLANAR,   dsd_msbf_planar);

     REGISTER_DECODER(DSICINAUDIO,       dsicinaudio);

     REGISTER_DECODER(DSS_SP,            dss_sp);

     REGISTER_DECODER(DST,               dst);

     REGISTER_ENCDEC (EAC3,              eac3);

     REGISTER_DECODER(EVRC,              evrc);

     REGISTER_DECODER(FFWAVESYNTH,       ffwavesynth);

     REGISTER_ENCDEC (FLAC,              flac);

     REGISTER_ENCDEC (G723_1,            g723_1);
     REGISTER_DECODER(G729,              g729);

     REGISTER_DECODER(GSM,               gsm);
     REGISTER_DECODER(GSM_MS,            gsm_ms);
     REGISTER_DECODER(IAC,               iac);
     REGISTER_DECODER(IMC,               imc);

     REGISTER_DECODER(INTERPLAY_ACM,     interplay_acm);

     REGISTER_DECODER(MACE3,             mace3);
     REGISTER_DECODER(MACE6,             mace6);

     REGISTER_DECODER(METASOUND,         metasound);

     REGISTER_ENCDEC (MLP,               mlp);

     REGISTER_DECODER(MP1,               mp1);
     REGISTER_DECODER(MP1FLOAT,          mp1float);
     REGISTER_ENCDEC (MP2,               mp2);
     REGISTER_DECODER(MP2FLOAT,          mp2float);

     REGISTER_ENCODER(MP2FIXED,          mp2fixed);

     REGISTER_DECODER(MP3,               mp3);
     REGISTER_DECODER(MP3FLOAT,          mp3float);
     REGISTER_DECODER(MP3ADU,            mp3adu);
     REGISTER_DECODER(MP3ADUFLOAT,       mp3adufloat);
     REGISTER_DECODER(MP3ON4,            mp3on4);
     REGISTER_DECODER(MP3ON4FLOAT,       mp3on4float);
     REGISTER_DECODER(MPC7,              mpc7);
     REGISTER_DECODER(MPC8,              mpc8);
     REGISTER_ENCDEC (NELLYMOSER,        nellymoser);

     REGISTER_DECODER(ON2AVC,            on2avc);

     REGISTER_ENCDEC (OPUS,              opus);

     REGISTER_DECODER(PAF_AUDIO,         paf_audio);

     REGISTER_DECODER(QCELP,             qcelp);
     REGISTER_DECODER(QDM2,              qdm2);

     REGISTER_DECODER(QDMC,              qdmc);

     REGISTER_ENCDEC (RA_144,            ra_144);
     REGISTER_DECODER(RA_288,            ra_288);
     REGISTER_DECODER(RALF,              ralf);
     REGISTER_DECODER(SHORTEN,           shorten);
     REGISTER_DECODER(SIPR,              sipr);
     REGISTER_DECODER(SMACKAUD,          smackaud);

     REGISTER_ENCDEC (SONIC,             sonic);
     REGISTER_ENCODER(SONIC_LS,          sonic_ls);

     REGISTER_DECODER(TAK,               tak);

     REGISTER_ENCDEC (TRUEHD,            truehd);

     REGISTER_DECODER(TRUESPEECH,        truespeech);

     REGISTER_ENCDEC (TTA,               tta);

     REGISTER_DECODER(TWINVQ,            twinvq);
     REGISTER_DECODER(VMDAUDIO,          vmdaudio);
     REGISTER_ENCDEC (VORBIS,            vorbis);

     REGISTER_ENCDEC (WAVPACK,           wavpack);

     REGISTER_DECODER(WMALOSSLESS,       wmalossless);
     REGISTER_DECODER(WMAPRO,            wmapro);
     REGISTER_ENCDEC (WMAV1,             wmav1);
     REGISTER_ENCDEC (WMAV2,             wmav2);
     REGISTER_DECODER(WMAVOICE,          wmavoice);
     REGISTER_DECODER(WS_SND1,           ws_snd1);

     REGISTER_DECODER(XMA1,              xma1);
     REGISTER_DECODER(XMA2,              xma2);

     /* PCM codecs */

     REGISTER_ENCDEC (PCM_ALAW,          pcm_alaw);
     REGISTER_DECODER(PCM_BLURAY,        pcm_bluray);
     REGISTER_DECODER(PCM_DVD,           pcm_dvd);

     REGISTER_DECODER(PCM_F16LE,         pcm_f16le);
     REGISTER_DECODER(PCM_F24LE,         pcm_f24le);

     REGISTER_ENCDEC (PCM_F32BE,         pcm_f32be);
     REGISTER_ENCDEC (PCM_F32LE,         pcm_f32le);
     REGISTER_ENCDEC (PCM_F64BE,         pcm_f64be);
     REGISTER_ENCDEC (PCM_F64LE,         pcm_f64le);
     REGISTER_DECODER(PCM_LXF,           pcm_lxf);
     REGISTER_ENCDEC (PCM_MULAW,         pcm_mulaw);
     REGISTER_ENCDEC (PCM_S8,            pcm_s8);

     REGISTER_ENCDEC (PCM_S8_PLANAR,     pcm_s8_planar);

     REGISTER_ENCDEC (PCM_S16BE,         pcm_s16be);

     REGISTER_ENCDEC (PCM_S16BE_PLANAR,  pcm_s16be_planar);

     REGISTER_ENCDEC (PCM_S16LE,         pcm_s16le);

     REGISTER_ENCDEC (PCM_S16LE_PLANAR,  pcm_s16le_planar);

     REGISTER_ENCDEC (PCM_S24BE,         pcm_s24be);
     REGISTER_ENCDEC (PCM_S24DAUD,       pcm_s24daud);
     REGISTER_ENCDEC (PCM_S24LE,         pcm_s24le);

     REGISTER_ENCDEC (PCM_S24LE_PLANAR,  pcm_s24le_planar);

     REGISTER_ENCDEC (PCM_S32BE,         pcm_s32be);
     REGISTER_ENCDEC (PCM_S32LE,         pcm_s32le);

     REGISTER_ENCDEC (PCM_S32LE_PLANAR,  pcm_s32le_planar);

     REGISTER_ENCDEC (PCM_S64BE,         pcm_s64be);
     REGISTER_ENCDEC (PCM_S64LE,         pcm_s64le);

     REGISTER_ENCDEC (PCM_U8,            pcm_u8);
     REGISTER_ENCDEC (PCM_U16BE,         pcm_u16be);
     REGISTER_ENCDEC (PCM_U16LE,         pcm_u16le);
     REGISTER_ENCDEC (PCM_U24BE,         pcm_u24be);
     REGISTER_ENCDEC (PCM_U24LE,         pcm_u24le);
     REGISTER_ENCDEC (PCM_U32BE,         pcm_u32be);
     REGISTER_ENCDEC (PCM_U32LE,         pcm_u32le);

     REGISTER_DECODER(PCM_ZORK,          pcm_zork);

     /* DPCM codecs */

     REGISTER_DECODER(GREMLIN_DPCM,      gremlin_dpcm);

     REGISTER_DECODER(INTERPLAY_DPCM,    interplay_dpcm);
     REGISTER_ENCDEC (ROQ_DPCM,          roq_dpcm);
     REGISTER_DECODER(SOL_DPCM,          sol_dpcm);
     REGISTER_DECODER(XAN_DPCM,          xan_dpcm);

     /* ADPCM codecs */

     REGISTER_DECODER(ADPCM_4XM,         adpcm_4xm);
     REGISTER_ENCDEC (ADPCM_ADX,         adpcm_adx);

     REGISTER_DECODER(ADPCM_AFC,         adpcm_afc);

     REGISTER_DECODER(ADPCM_AICA,        adpcm_aica);

     REGISTER_DECODER(ADPCM_CT,          adpcm_ct);

     REGISTER_DECODER(ADPCM_DTK,         adpcm_dtk);

     REGISTER_DECODER(ADPCM_EA,          adpcm_ea);
     REGISTER_DECODER(ADPCM_EA_MAXIS_XA, adpcm_ea_maxis_xa);
     REGISTER_DECODER(ADPCM_EA_R1,       adpcm_ea_r1);
     REGISTER_DECODER(ADPCM_EA_R2,       adpcm_ea_r2);
     REGISTER_DECODER(ADPCM_EA_R3,       adpcm_ea_r3);
     REGISTER_DECODER(ADPCM_EA_XAS,      adpcm_ea_xas);
     REGISTER_ENCDEC (ADPCM_G722,        adpcm_g722);
     REGISTER_ENCDEC (ADPCM_G726,        adpcm_g726);

     REGISTER_ENCDEC (ADPCM_G726LE,      adpcm_g726le);

     REGISTER_DECODER(ADPCM_IMA_AMV,     adpcm_ima_amv);
     REGISTER_DECODER(ADPCM_IMA_APC,     adpcm_ima_apc);

     REGISTER_DECODER(ADPCM_IMA_DAT4,    adpcm_ima_dat4);

     REGISTER_DECODER(ADPCM_IMA_DK3,     adpcm_ima_dk3);
     REGISTER_DECODER(ADPCM_IMA_DK4,     adpcm_ima_dk4);
     REGISTER_DECODER(ADPCM_IMA_EA_EACS, adpcm_ima_ea_eacs);
     REGISTER_DECODER(ADPCM_IMA_EA_SEAD, adpcm_ima_ea_sead);
     REGISTER_DECODER(ADPCM_IMA_ISS,     adpcm_ima_iss);

     REGISTER_DECODER(ADPCM_IMA_OKI,     adpcm_ima_oki);

     REGISTER_ENCDEC (ADPCM_IMA_QT,      adpcm_ima_qt);

     REGISTER_DECODER(ADPCM_IMA_RAD,     adpcm_ima_rad);

     REGISTER_DECODER(ADPCM_IMA_SMJPEG,  adpcm_ima_smjpeg);
     REGISTER_ENCDEC (ADPCM_IMA_WAV,     adpcm_ima_wav);
     REGISTER_DECODER(ADPCM_IMA_WS,      adpcm_ima_ws);
     REGISTER_ENCDEC (ADPCM_MS,          adpcm_ms);

     REGISTER_DECODER(ADPCM_MTAF,        adpcm_mtaf);

     REGISTER_DECODER(ADPCM_PSX,         adpcm_psx);

     REGISTER_DECODER(ADPCM_SBPRO_2,     adpcm_sbpro_2);
     REGISTER_DECODER(ADPCM_SBPRO_3,     adpcm_sbpro_3);
     REGISTER_DECODER(ADPCM_SBPRO_4,     adpcm_sbpro_4);
     REGISTER_ENCDEC (ADPCM_SWF,         adpcm_swf);
     REGISTER_DECODER(ADPCM_THP,         adpcm_thp);

     REGISTER_DECODER(ADPCM_THP_LE,      adpcm_thp_le);

     REGISTER_DECODER(ADPCM_VIMA,        adpcm_vima);

     REGISTER_DECODER(ADPCM_XA,          adpcm_xa);
     REGISTER_ENCDEC (ADPCM_YAMAHA,      adpcm_yamaha);

     /* subtitles */

     REGISTER_ENCDEC (SSA,               ssa);

     REGISTER_ENCDEC (ASS,               ass);

     REGISTER_DECODER(CCAPTION,          ccaption);

     REGISTER_ENCDEC (DVBSUB,            dvbsub);
     REGISTER_ENCDEC (DVDSUB,            dvdsub);

     REGISTER_DECODER(JACOSUB,           jacosub);
     REGISTER_DECODER(MICRODVD,          microdvd);
     REGISTER_ENCDEC (MOVTEXT,           movtext);

     REGISTER_DECODER(MPL2,              mpl2);

     REGISTER_DECODER(PGSSUB,            pgssub);

     REGISTER_DECODER(PJS,               pjs);

     REGISTER_DECODER(REALTEXT,          realtext);
     REGISTER_DECODER(SAMI,              sami);
     REGISTER_ENCDEC (SRT,               srt);

     REGISTER_DECODER(STL,               stl);

     REGISTER_ENCDEC (SUBRIP,            subrip);
     REGISTER_DECODER(SUBVIEWER,         subviewer);

     REGISTER_DECODER(SUBVIEWER1,        subviewer1);

     REGISTER_ENCDEC (TEXT,              text);

     REGISTER_DECODER(VPLAYER,           vplayer);

     REGISTER_ENCDEC (WEBVTT,            webvtt);

     REGISTER_ENCDEC (XSUB,              xsub);

     /* external libraries */

     REGISTER_ENCDEC (AAC_AT,            aac_at);

     REGISTER_DECODER(AC3_AT,            ac3_at);
     REGISTER_DECODER(ADPCM_IMA_QT_AT,   adpcm_ima_qt_at);

     REGISTER_ENCDEC (ALAC_AT,           alac_at);

     REGISTER_DECODER(AMR_NB_AT,         amr_nb_at);

     REGISTER_DECODER(EAC3_AT,           eac3_at);

     REGISTER_DECODER(GSM_MS_AT,         gsm_ms_at);

     REGISTER_ENCDEC (ILBC_AT,           ilbc_at);

     REGISTER_DECODER(MP1_AT,            mp1_at);
     REGISTER_DECODER(MP2_AT,            mp2_at);
     REGISTER_DECODER(MP3_AT,            mp3_at);

     REGISTER_ENCDEC (PCM_ALAW_AT,       pcm_alaw_at);
     REGISTER_ENCDEC (PCM_MULAW_AT,      pcm_mulaw_at);

     REGISTER_DECODER(QDMC_AT,           qdmc_at);
     REGISTER_DECODER(QDM2_AT,           qdm2_at);

     REGISTER_DECODER(LIBCELT,           libcelt);

     REGISTER_ENCDEC (LIBFDK_AAC,        libfdk_aac);

     REGISTER_ENCDEC (LIBGSM,            libgsm);
     REGISTER_ENCDEC (LIBGSM_MS,         libgsm_ms);
     REGISTER_ENCDEC (LIBILBC,           libilbc);
     REGISTER_ENCODER(LIBMP3LAME,        libmp3lame);
     REGISTER_ENCDEC (LIBOPENCORE_AMRNB, libopencore_amrnb);
     REGISTER_DECODER(LIBOPENCORE_AMRWB, libopencore_amrwb);
     REGISTER_ENCDEC (LIBOPENJPEG,       libopenjpeg);
     REGISTER_ENCDEC (LIBOPUS,           libopus);

     REGISTER_DECODER(LIBRSVG,           librsvg);

     REGISTER_ENCODER(LIBSHINE,          libshine);

     REGISTER_ENCDEC (LIBSPEEX,          libspeex);
     REGISTER_ENCODER(LIBTHEORA,         libtheora);

     REGISTER_ENCODER(LIBTWOLAME,        libtwolame);

     REGISTER_ENCODER(LIBVO_AMRWBENC,    libvo_amrwbenc);

     REGISTER_ENCDEC (LIBVORBIS,         libvorbis);

     REGISTER_ENCDEC (LIBVPX_VP8,        libvpx_vp8);
     REGISTER_ENCDEC (LIBVPX_VP9,        libvpx_vp9);

     REGISTER_ENCODER(LIBWAVPACK,        libwavpack);

     REGISTER_ENCODER(LIBWEBP_ANIM,      libwebp_anim);  /* preferred over libwebp */

     REGISTER_ENCODER(LIBWEBP,           libwebp);

     REGISTER_ENCODER(LIBX262,           libx262);

     REGISTER_ENCODER(LIBX264,           libx264);

     REGISTER_ENCODER(LIBX264RGB,        libx264rgb);

     REGISTER_ENCODER(LIBX265,           libx265);

     REGISTER_ENCODER(LIBXAVS,           libxavs);
     REGISTER_ENCODER(LIBXVID,           libxvid);

     REGISTER_DECODER(LIBZVBI_TELETEXT,  libzvbi_teletext);

     /* text */

     REGISTER_DECODER(BINTEXT,           bintext);
     REGISTER_DECODER(XBIN,              xbin);
     REGISTER_DECODER(IDF,               idf);

     /* external libraries, that shouldn't be used by default if one of the
      * above is available */

     REGISTER_ENCODER(H263_V4L2M2M,      h263_v4l2m2m);

     REGISTER_ENCDEC (LIBOPENH264,       libopenh264);

     REGISTER_DECODER(H264_CUVID,        h264_cuvid);

     REGISTER_ENCODER(H264_NVENC,        h264_nvenc);
     REGISTER_ENCODER(H264_OMX,          h264_omx);

     REGISTER_ENCODER(H264_QSV,          h264_qsv);

     REGISTER_ENCODER(H264_V4L2M2M,      h264_v4l2m2m);

     REGISTER_ENCODER(H264_VAAPI,        h264_vaapi);

     REGISTER_ENCODER(H264_VIDEOTOOLBOX, h264_videotoolbox);

 #if FF_API_NVENC_OLD_NAME

     REGISTER_ENCODER(NVENC,             nvenc);
     REGISTER_ENCODER(NVENC_H264,        nvenc_h264);
     REGISTER_ENCODER(NVENC_HEVC,        nvenc_hevc);

 #endif

     REGISTER_DECODER(HEVC_CUVID,        hevc_cuvid);

     REGISTER_DECODER(HEVC_MEDIACODEC,   hevc_mediacodec);

     REGISTER_ENCODER(HEVC_NVENC,        hevc_nvenc);

     REGISTER_ENCODER(HEVC_QSV,          hevc_qsv);

     REGISTER_ENCODER(HEVC_V4L2M2M,      hevc_v4l2m2m);

     REGISTER_ENCODER(HEVC_VAAPI,        hevc_vaapi);

     REGISTER_ENCODER(LIBKVAZAAR,        libkvazaar);

     REGISTER_DECODER(MJPEG_CUVID,       mjpeg_cuvid);

     REGISTER_ENCODER(MJPEG_VAAPI,       mjpeg_vaapi);

     REGISTER_DECODER(MPEG1_CUVID,       mpeg1_cuvid);
     REGISTER_DECODER(MPEG2_CUVID,       mpeg2_cuvid);

     REGISTER_ENCODER(MPEG2_QSV,         mpeg2_qsv);

     REGISTER_ENCODER(MPEG2_VAAPI,       mpeg2_vaapi);

     REGISTER_DECODER(MPEG4_CUVID,       mpeg4_cuvid);

     REGISTER_DECODER(MPEG4_MEDIACODEC,  mpeg4_mediacodec);

     REGISTER_ENCODER(MPEG4_V4L2M2M,     mpeg4_v4l2m2m);

     REGISTER_DECODER(VC1_CUVID,         vc1_cuvid);
     REGISTER_DECODER(VP8_CUVID,         vp8_cuvid);

     REGISTER_DECODER(VP8_MEDIACODEC,    vp8_mediacodec);

     REGISTER_DECODER(VP8_QSV,           vp8_qsv);

     REGISTER_ENCODER(VP8_V4L2M2M,       vp8_v4l2m2m);

     REGISTER_ENCODER(VP8_VAAPI,         vp8_vaapi);

     REGISTER_DECODER(VP9_CUVID,         vp9_cuvid);

     REGISTER_DECODER(VP9_MEDIACODEC,    vp9_mediacodec);

     REGISTER_ENCODER(VP9_VAAPI,         vp9_vaapi);

     /* parsers */

     REGISTER_PARSER(AAC,                aac);
     REGISTER_PARSER(AAC_LATM,           aac_latm);
     REGISTER_PARSER(AC3,                ac3);
     REGISTER_PARSER(ADX,                adx);

     REGISTER_PARSER(BMP,                bmp);

     REGISTER_PARSER(CAVSVIDEO,          cavsvideo);
     REGISTER_PARSER(COOK,               cook);
     REGISTER_PARSER(DCA,                dca);
     REGISTER_PARSER(DIRAC,              dirac);
     REGISTER_PARSER(DNXHD,              dnxhd);

     REGISTER_PARSER(DPX,                dpx);

     REGISTER_PARSER(DVAUDIO,            dvaudio);

     REGISTER_PARSER(DVBSUB,             dvbsub);
     REGISTER_PARSER(DVDSUB,             dvdsub);

     REGISTER_PARSER(DVD_NAV,            dvd_nav);

     REGISTER_PARSER(FLAC,               flac);

     REGISTER_PARSER(G729,               g729);

     REGISTER_PARSER(GSM,                gsm);
     REGISTER_PARSER(H261,               h261);
     REGISTER_PARSER(H263,               h263);
     REGISTER_PARSER(H264,               h264);

     REGISTER_PARSER(HEVC,               hevc);

     REGISTER_PARSER(MJPEG,              mjpeg);
     REGISTER_PARSER(MLP,                mlp);
     REGISTER_PARSER(MPEG4VIDEO,         mpeg4video);
     REGISTER_PARSER(MPEGAUDIO,          mpegaudio);
     REGISTER_PARSER(MPEGVIDEO,          mpegvideo);

     REGISTER_PARSER(OPUS,               opus);

     REGISTER_PARSER(PNG,                png);

     REGISTER_PARSER(PNM,                pnm);
     REGISTER_PARSER(RV30,               rv30);
     REGISTER_PARSER(RV40,               rv40);

     REGISTER_PARSER(SIPR,               sipr);

     REGISTER_PARSER(TAK,                tak);
     REGISTER_PARSER(VC1,                vc1);
     REGISTER_PARSER(VORBIS,             vorbis);
     REGISTER_PARSER(VP3,                vp3);
     REGISTER_PARSER(VP8,                vp8);

     REGISTER_PARSER(VP9,                vp9);

     REGISTER_PARSER(XMA,                xma);

 }

 
 void avcodec_register_all(void)
 {
     static AVOnce control = AV_ONCE_INIT;
 
     ff_thread_once(&control, register_all);
 }