ffmpeg/libavcodec/vda.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
  21 #include "libavutil/mem.h"
  22
  23 #include "vda.h"
  24 #include "vda_internal.h"
  25
  26 #if CONFIG_H264_VDA_HWACCEL
  27 AVVDAContext *av_vda_alloc_context(void)
  28 {
  29     AVVDAContext *ret = av_mallocz(sizeof(*ret));
  30
  31     if (ret)
  32         ret->output_callback = ff_vda_output_callback;
  33
  34     return ret;
  35 }
  36
  37 int av_vda_default_init(AVCodecContext *avctx)
  38 {
  39     avctx->hwaccel_context = av_vda_alloc_context();
  40     if (!avctx->hwaccel_context)
  41         return AVERROR(ENOMEM);
  42     return ff_vda_default_init(avctx);
  43 }
  44
  45 void av_vda_default_free(AVCodecContext *avctx)
  46 {
  47     ff_vda_default_free(avctx);
  48     av_freep(&avctx->hwaccel_context);
  49 }
  50
  51 void ff_vda_default_free(AVCodecContext *avctx)
  52 {
  53     AVVDAContext *vda = avctx->hwaccel_context;
  54     if (vda && vda->decoder)
  55         VDADecoderDestroy(vda->decoder);
  56 }
  57
  58 #else
  59 AVVDAContext *av_vda_alloc_context(void)
  60 {
  61     return NULL;
  62 }
  63
  64 int av_vda_default_init(AVCodecContext *avctx)
  65 {
  66     return AVERROR(ENOSYS);
  67 }
  68
  69 void av_vda_default_free(AVCodecContext *ctx)
  70 {
  71 }
  72 #endif