FFmpeg  1.2.4
vda.h
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1 /*
2  * VDA HW acceleration
3  *
4  * copyright (c) 2011 Sebastien Zwickert
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #ifndef AVCODEC_VDA_H
24 #define AVCODEC_VDA_H
25 
32 #include <stdint.h>
33 
34 // emmintrin.h is unable to compile with -std=c99 -Werror=missing-prototypes
35 // http://openradar.appspot.com/8026390
36 #undef __GNUC_STDC_INLINE__
37 
38 #define Picture QuickdrawPicture
39 #include <VideoDecodeAcceleration/VDADecoder.h>
40 #undef Picture
41 
42 #include "libavcodec/version.h"
43 
44 #if FF_API_VDA_ASYNC
45 #include <pthread.h>
46 #endif
47 
55 #if FF_API_VDA_ASYNC
56 
61 typedef struct {
68  int64_t pts;
69 
76  CVPixelBufferRef cv_buffer;
77 
84  struct vda_frame *next_frame;
85 } vda_frame;
86 #endif
87 
94 struct vda_context {
101  VDADecoder decoder;
102 
109  CVPixelBufferRef cv_buffer;
110 
118 
119 #if FF_API_VDA_ASYNC
120 
128  vda_frame *queue;
129 
138  pthread_mutex_t queue_mutex;
139 #endif
140 
147  int width;
148 
155  int height;
156 
163  int format;
164 
172 
180 
188 
196 };
197 
199 int ff_vda_create_decoder(struct vda_context *vda_ctx,
200  uint8_t *extradata,
201  int extradata_size);
202 
204 int ff_vda_destroy_decoder(struct vda_context *vda_ctx);
205 
206 #if FF_API_VDA_ASYNC
207 
212 vda_frame *ff_vda_queue_pop(struct vda_context *vda_ctx);
213 
219 void ff_vda_release_vda_frame(vda_frame *frame);
220 #endif
221 
226 #endif /* AVCODEC_VDA_H */