ffmpeg/libavcodec/h264chroma.c

   1 /*
   2  * This file is part of FFmpeg.
   3  *
   4  * FFmpeg is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * FFmpeg is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with FFmpeg; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17  */
  18
  19 #include "config.h"
  20 #include "libavutil/attributes.h"
  21 #include "h264chroma.h"
  22
  23 #define BIT_DEPTH 8
  24 #include "h264chroma_template.c"
  25 #undef BIT_DEPTH
  26
  27 #define BIT_DEPTH 16
  28 #include "h264chroma_template.c"
  29 #undef BIT_DEPTH
  30
  31 #define SET_CHROMA(depth)                                                   \
  32     c->put_h264_chroma_pixels_tab[0] = put_h264_chroma_mc8_ ## depth ## _c; \
  33     c->put_h264_chroma_pixels_tab[1] = put_h264_chroma_mc4_ ## depth ## _c; \
  34     c->put_h264_chroma_pixels_tab[2] = put_h264_chroma_mc2_ ## depth ## _c; \
  35     c->put_h264_chroma_pixels_tab[3] = put_h264_chroma_mc1_ ## depth ## _c; \
  36     c->avg_h264_chroma_pixels_tab[0] = avg_h264_chroma_mc8_ ## depth ## _c; \
  37     c->avg_h264_chroma_pixels_tab[1] = avg_h264_chroma_mc4_ ## depth ## _c; \
  38     c->avg_h264_chroma_pixels_tab[2] = avg_h264_chroma_mc2_ ## depth ## _c; \
  39     c->avg_h264_chroma_pixels_tab[3] = avg_h264_chroma_mc1_ ## depth ## _c; \
  40
  41 av_cold void ff_h264chroma_init(H264ChromaContext *c, int bit_depth)
  42 {
  43     if (bit_depth > 8 && bit_depth <= 16) {
  44         SET_CHROMA(16);
  45     } else {
  46         SET_CHROMA(8);
  47     }
  48
  49     if (ARCH_AARCH64)
  50         ff_h264chroma_init_aarch64(c, bit_depth);
  51     if (ARCH_ARM)
  52         ff_h264chroma_init_arm(c, bit_depth);
  53     if (ARCH_PPC)
  54         ff_h264chroma_init_ppc(c, bit_depth);
  55     if (ARCH_X86)
  56         ff_h264chroma_init_x86(c, bit_depth);
  57 }