lavc: Add new VDA hwaccel
[libav.git] / libavcodec / vda.c
1 /*
2 * This file is part of Libav.
3 *
4 * Libav 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 * Libav 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 Libav; 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