LCOV - code coverage report
Current view: top level - src/libavcodec - avdct.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 0 26 0.0 %
Date: 2017-06-24 07:01:58 Functions: 0 3 0.0 %

          Line data    Source code
       1             : /*
       2             :  * Copyright (c) 2014 Michael Niedermayer <michaelni@gmx.at>
       3             :  *
       4             :  * This file is part of FFmpeg.
       5             :  *
       6             :  * FFmpeg is free software; you can redistribute it and/or
       7             :  * modify it under the terms of the GNU Lesser General Public
       8             :  * License as published by the Free Software Foundation; either
       9             :  * version 2.1 of the License, or (at your option) any later version.
      10             :  *
      11             :  * FFmpeg is distributed in the hope that it will be useful,
      12             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      13             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14             :  * Lesser General Public License for more details.
      15             :  *
      16             :  * You should have received a copy of the GNU Lesser General Public
      17             :  * License along with FFmpeg; if not, write to the Free Software
      18             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      19             :  */
      20             : 
      21             : #include "avcodec.h"
      22             : #include "idctdsp.h"
      23             : #include "fdctdsp.h"
      24             : #include "pixblockdsp.h"
      25             : #include "avdct.h"
      26             : 
      27             : #define OFFSET(x) offsetof(AVDCT,x)
      28             : #define DEFAULT 0 //should be NAN but it does not work as it is not a constant in glibc as required by ANSI/ISO C
      29             : //these names are too long to be readable
      30             : #define V AV_OPT_FLAG_VIDEO_PARAM
      31             : #define A AV_OPT_FLAG_AUDIO_PARAM
      32             : #define E AV_OPT_FLAG_ENCODING_PARAM
      33             : #define D AV_OPT_FLAG_DECODING_PARAM
      34             : 
      35             : static const AVOption avdct_options[] = {
      36             : {"dct", "DCT algorithm", OFFSET(dct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E, "dct"},
      37             : {"auto", "autoselect a good one", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_AUTO }, INT_MIN, INT_MAX, V|E, "dct"},
      38             : {"fastint", "fast integer (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FASTINT }, INT_MIN, INT_MAX, V|E, "dct"},
      39             : {"int", "accurate integer", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_INT }, INT_MIN, INT_MAX, V|E, "dct"},
      40             : {"mmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_MMX }, INT_MIN, INT_MAX, V|E, "dct"},
      41             : {"altivec", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_ALTIVEC }, INT_MIN, INT_MAX, V|E, "dct"},
      42             : {"faan", "floating point AAN DCT (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FAAN }, INT_MIN, INT_MAX, V|E, "dct"},
      43             : 
      44             : {"idct", "select IDCT implementation", OFFSET(idct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E|D, "idct"},
      45             : {"auto", "autoselect a good one", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_AUTO }, INT_MIN, INT_MAX, V|E|D, "idct"},
      46             : {"int", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_INT }, INT_MIN, INT_MAX, V|E|D, "idct"},
      47             : {"simple", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLE }, INT_MIN, INT_MAX, V|E|D, "idct"},
      48             : {"simplemmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEMMX }, INT_MIN, INT_MAX, V|E|D, "idct"},
      49             : {"arm", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ARM }, INT_MIN, INT_MAX, V|E|D, "idct"},
      50             : {"altivec", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ALTIVEC }, INT_MIN, INT_MAX, V|E|D, "idct"},
      51             : #if FF_API_ARCH_SH4
      52             : {"sh4", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SH4 }, INT_MIN, INT_MAX, V|E|D, "idct"},
      53             : #endif
      54             : {"simplearm", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARM }, INT_MIN, INT_MAX, V|E|D, "idct"},
      55             : {"simplearmv5te", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV5TE }, INT_MIN, INT_MAX, V|E|D, "idct"},
      56             : {"simplearmv6", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV6 }, INT_MIN, INT_MAX, V|E|D, "idct"},
      57             : {"simpleneon", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLENEON }, INT_MIN, INT_MAX, V|E|D, "idct"},
      58             : #if FF_API_ARCH_ALPHA
      59             : {"simplealpha", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEALPHA }, INT_MIN, INT_MAX, V|E|D, "idct"},
      60             : #endif
      61             : #if FF_API_UNUSED_MEMBERS
      62             : {"ipp", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_IPP }, INT_MIN, INT_MAX, V|E|D, "idct"},
      63             : #endif
      64             : {"xvid", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, "idct"},
      65             : {"xvidmmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, "idct"},
      66             : {"faani", "floating point AAN IDCT (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_FAAN }, INT_MIN, INT_MAX, V|D|E, "idct"},
      67             : {"simpleauto", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEAUTO }, INT_MIN, INT_MAX, V|E|D, "idct"},
      68             : 
      69             : {"bits_per_sample", "", OFFSET(bits_per_sample), AV_OPT_TYPE_INT, {.i64 = 8 }, 0, 14, 0,},
      70             : {NULL},
      71             : };
      72             : 
      73             : static const AVClass avdct_class = {
      74             :     .class_name              = "AVDCT",
      75             :     .option                  = avdct_options,
      76             :     .version                 = LIBAVUTIL_VERSION_INT,
      77             : };
      78             : 
      79           0 : const AVClass *avcodec_dct_get_class(void)
      80             : {
      81           0 :     return &avdct_class;
      82             : }
      83             : 
      84           0 : AVDCT *avcodec_dct_alloc(void)
      85             : {
      86           0 :     AVDCT *dsp = av_mallocz(sizeof(AVDCT));
      87             : 
      88           0 :     if (!dsp)
      89           0 :         return NULL;
      90             : 
      91           0 :     dsp->av_class = &avdct_class;
      92           0 :     av_opt_set_defaults(dsp);
      93             : 
      94           0 :     return dsp;
      95             : }
      96             : 
      97           0 : int avcodec_dct_init(AVDCT *dsp)
      98             : {
      99           0 :     AVCodecContext *avctx = avcodec_alloc_context3(NULL);
     100             : 
     101           0 :     if (!avctx)
     102           0 :         return AVERROR(ENOMEM);
     103             : 
     104           0 :     avctx->idct_algo = dsp->idct_algo;
     105           0 :     avctx->dct_algo  = dsp->dct_algo;
     106           0 :     avctx->bits_per_raw_sample = dsp->bits_per_sample;
     107             : 
     108             : #define COPY(src, name) memcpy(&dsp->name, &src.name, sizeof(dsp->name))
     109             : 
     110             : #if CONFIG_IDCTDSP
     111             :     {
     112             :         IDCTDSPContext idsp;
     113           0 :         ff_idctdsp_init(&idsp, avctx);
     114           0 :         COPY(idsp, idct);
     115           0 :         COPY(idsp, idct_permutation);
     116             :     }
     117             : #endif
     118             : 
     119             : #if CONFIG_FDCTDSP
     120             :     {
     121             :         FDCTDSPContext fdsp;
     122           0 :         ff_fdctdsp_init(&fdsp, avctx);
     123           0 :         COPY(fdsp, fdct);
     124             :     }
     125             : #endif
     126             : 
     127             : #if CONFIG_PIXBLOCKDSP
     128             :     {
     129             :         PixblockDSPContext pdsp;
     130           0 :         ff_pixblockdsp_init(&pdsp, avctx);
     131           0 :         COPY(pdsp, get_pixels);
     132             :     }
     133             : #endif
     134             : 
     135           0 :     avcodec_close(avctx);
     136           0 :     av_free(avctx);
     137             : 
     138           0 :     return 0;
     139             : }

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