Imported Debian version 2.5.3~trusty1
[deb_ffmpeg.git] / ffmpeg / libavcodec / vaapi.c
CommitLineData
2ba45a60
DM
1/*
2 * Video Acceleration API (video decoding)
3 * HW decode acceleration for MPEG-2, MPEG-4, H.264 and VC-1
4 *
5 * Copyright (C) 2008-2009 Splitted-Desktop Systems
6 *
7 * This file is part of FFmpeg.
8 *
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24#include "h264.h"
25#include "vaapi_internal.h"
26
27/**
28 * @addtogroup VAAPI_Decoding
29 *
30 * @{
31 */
32
33static void destroy_buffers(VADisplay display, VABufferID *buffers, unsigned int n_buffers)
34{
35 unsigned int i;
36 for (i = 0; i < n_buffers; i++) {
37 if (buffers[i]) {
38 vaDestroyBuffer(display, buffers[i]);
39 buffers[i] = 0;
40 }
41 }
42}
43
44int ff_vaapi_render_picture(struct vaapi_context *vactx, VASurfaceID surface)
45{
46 VABufferID va_buffers[3];
47 unsigned int n_va_buffers = 0;
48
49 if (!vactx->pic_param_buf_id)
50 return 0;
51
52 vaUnmapBuffer(vactx->display, vactx->pic_param_buf_id);
53 va_buffers[n_va_buffers++] = vactx->pic_param_buf_id;
54
55 if (vactx->iq_matrix_buf_id) {
56 vaUnmapBuffer(vactx->display, vactx->iq_matrix_buf_id);
57 va_buffers[n_va_buffers++] = vactx->iq_matrix_buf_id;
58 }
59
60 if (vactx->bitplane_buf_id) {
61 vaUnmapBuffer(vactx->display, vactx->bitplane_buf_id);
62 va_buffers[n_va_buffers++] = vactx->bitplane_buf_id;
63 }
64
65 if (vaBeginPicture(vactx->display, vactx->context_id,
66 surface) != VA_STATUS_SUCCESS)
67 return -1;
68
69 if (vaRenderPicture(vactx->display, vactx->context_id,
70 va_buffers, n_va_buffers) != VA_STATUS_SUCCESS)
71 return -1;
72
73 if (vaRenderPicture(vactx->display, vactx->context_id,
74 vactx->slice_buf_ids,
75 vactx->n_slice_buf_ids) != VA_STATUS_SUCCESS)
76 return -1;
77
78 if (vaEndPicture(vactx->display, vactx->context_id) != VA_STATUS_SUCCESS)
79 return -1;
80
81 return 0;
82}
83
84int ff_vaapi_commit_slices(struct vaapi_context *vactx)
85{
86 VABufferID *slice_buf_ids;
87 VABufferID slice_param_buf_id, slice_data_buf_id;
88
89 if (vactx->slice_count == 0)
90 return 0;
91
92 slice_buf_ids =
93 av_fast_realloc(vactx->slice_buf_ids,
94 &vactx->slice_buf_ids_alloc,
95 (vactx->n_slice_buf_ids + 2) * sizeof(slice_buf_ids[0]));
96 if (!slice_buf_ids)
97 return -1;
98 vactx->slice_buf_ids = slice_buf_ids;
99
100 slice_param_buf_id = 0;
101 if (vaCreateBuffer(vactx->display, vactx->context_id,
102 VASliceParameterBufferType,
103 vactx->slice_param_size,
104 vactx->slice_count, vactx->slice_params,
105 &slice_param_buf_id) != VA_STATUS_SUCCESS)
106 return -1;
107 vactx->slice_count = 0;
108
109 slice_data_buf_id = 0;
110 if (vaCreateBuffer(vactx->display, vactx->context_id,
111 VASliceDataBufferType,
112 vactx->slice_data_size,
113 1, (void *)vactx->slice_data,
114 &slice_data_buf_id) != VA_STATUS_SUCCESS)
115 return -1;
116 vactx->slice_data = NULL;
117 vactx->slice_data_size = 0;
118
119 slice_buf_ids[vactx->n_slice_buf_ids++] = slice_param_buf_id;
120 slice_buf_ids[vactx->n_slice_buf_ids++] = slice_data_buf_id;
121 return 0;
122}
123
124static void *alloc_buffer(struct vaapi_context *vactx, int type, unsigned int size, uint32_t *buf_id)
125{
126 void *data = NULL;
127
128 *buf_id = 0;
129 if (vaCreateBuffer(vactx->display, vactx->context_id,
130 type, size, 1, NULL, buf_id) == VA_STATUS_SUCCESS)
131 vaMapBuffer(vactx->display, *buf_id, &data);
132
133 return data;
134}
135
136void *ff_vaapi_alloc_pic_param(struct vaapi_context *vactx, unsigned int size)
137{
138 return alloc_buffer(vactx, VAPictureParameterBufferType, size, &vactx->pic_param_buf_id);
139}
140
141void *ff_vaapi_alloc_iq_matrix(struct vaapi_context *vactx, unsigned int size)
142{
143 return alloc_buffer(vactx, VAIQMatrixBufferType, size, &vactx->iq_matrix_buf_id);
144}
145
146uint8_t *ff_vaapi_alloc_bitplane(struct vaapi_context *vactx, uint32_t size)
147{
148 return alloc_buffer(vactx, VABitPlaneBufferType, size, &vactx->bitplane_buf_id);
149}
150
151VASliceParameterBufferBase *ff_vaapi_alloc_slice(struct vaapi_context *vactx, const uint8_t *buffer, uint32_t size)
152{
153 uint8_t *slice_params;
154 VASliceParameterBufferBase *slice_param;
155
156 if (!vactx->slice_data)
157 vactx->slice_data = buffer;
158 if (vactx->slice_data + vactx->slice_data_size != buffer) {
159 if (ff_vaapi_commit_slices(vactx) < 0)
160 return NULL;
161 vactx->slice_data = buffer;
162 }
163
164 slice_params =
165 av_fast_realloc(vactx->slice_params,
166 &vactx->slice_params_alloc,
167 (vactx->slice_count + 1) * vactx->slice_param_size);
168 if (!slice_params)
169 return NULL;
170 vactx->slice_params = slice_params;
171
172 slice_param = (VASliceParameterBufferBase *)(slice_params + vactx->slice_count * vactx->slice_param_size);
173 slice_param->slice_data_size = size;
174 slice_param->slice_data_offset = vactx->slice_data_size;
175 slice_param->slice_data_flag = VA_SLICE_DATA_FLAG_ALL;
176
177 vactx->slice_count++;
178 vactx->slice_data_size += size;
179 return slice_param;
180}
181
182void ff_vaapi_common_end_frame(AVCodecContext *avctx)
183{
184 struct vaapi_context * const vactx = avctx->hwaccel_context;
185
186 av_dlog(avctx, "ff_vaapi_common_end_frame()\n");
187
188 destroy_buffers(vactx->display, &vactx->pic_param_buf_id, 1);
189 destroy_buffers(vactx->display, &vactx->iq_matrix_buf_id, 1);
190 destroy_buffers(vactx->display, &vactx->bitplane_buf_id, 1);
191 destroy_buffers(vactx->display, vactx->slice_buf_ids, vactx->n_slice_buf_ids);
192 av_freep(&vactx->slice_buf_ids);
193 av_freep(&vactx->slice_params);
194 vactx->n_slice_buf_ids = 0;
195 vactx->slice_buf_ids_alloc = 0;
196 vactx->slice_count = 0;
197 vactx->slice_params_alloc = 0;
198}
199
200/* @} */