2 * Video Acceleration API (video decoding)
3 * HW decode acceleration for MPEG-2, MPEG-4, H.264 and VC-1
5 * Copyright (C) 2008-2009 Splitted-Desktop Systems
7 * This file is part of FFmpeg.
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.
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.
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
25 #include "vaapi_internal.h"
28 * @addtogroup VAAPI_Decoding
33 static void destroy_buffers(VADisplay display, VABufferID *buffers, unsigned int n_buffers)
36 for (i = 0; i < n_buffers; i++) {
38 vaDestroyBuffer(display, buffers[i]);
44 int ff_vaapi_render_picture(struct vaapi_context *vactx, VASurfaceID surface)
46 VABufferID va_buffers[3];
47 unsigned int n_va_buffers = 0;
49 if (vactx->pic_param_buf_id)
50 vaUnmapBuffer(vactx->display, vactx->pic_param_buf_id);
51 va_buffers[n_va_buffers++] = vactx->pic_param_buf_id;
54 if (vactx->iq_matrix_buf_id) {
55 vaUnmapBuffer(vactx->display, vactx->iq_matrix_buf_id);
56 va_buffers[n_va_buffers++] = vactx->iq_matrix_buf_id;
59 if (vactx->bitplane_buf_id) {
60 vaUnmapBuffer(vactx->display, vactx->bitplane_buf_id);
61 va_buffers[n_va_buffers++] = vactx->bitplane_buf_id;
64 if (vaBeginPicture(vactx->display, vactx->context_id,
65 surface) != VA_STATUS_SUCCESS)
68 if (vaRenderPicture(vactx->display, vactx->context_id,
69 va_buffers, n_va_buffers) != VA_STATUS_SUCCESS)
72 if (vaRenderPicture(vactx->display, vactx->context_id,
74 vactx->n_slice_buf_ids) != VA_STATUS_SUCCESS)
77 if (vaEndPicture(vactx->display, vactx->context_id) != VA_STATUS_SUCCESS)
83 int ff_vaapi_commit_slices(struct vaapi_context *vactx)
85 VABufferID *slice_buf_ids;
86 VABufferID slice_param_buf_id, slice_data_buf_id;
88 if (vactx->slice_count == 0)
92 av_fast_realloc(vactx->slice_buf_ids,
93 &vactx->slice_buf_ids_alloc,
94 (vactx->n_slice_buf_ids + 2) * sizeof(slice_buf_ids[0]));
97 vactx->slice_buf_ids = slice_buf_ids;
99 slice_param_buf_id = 0;
100 if (vaCreateBuffer(vactx->display, vactx->context_id,
101 VASliceParameterBufferType,
102 vactx->slice_param_size,
103 vactx->slice_count, vactx->slice_params,
104 &slice_param_buf_id) != VA_STATUS_SUCCESS)
106 vactx->slice_count = 0;
108 slice_data_buf_id = 0;
109 if (vaCreateBuffer(vactx->display, vactx->context_id,
110 VASliceDataBufferType,
111 vactx->slice_data_size,
112 1, (void *)vactx->slice_data,
113 &slice_data_buf_id) != VA_STATUS_SUCCESS)
115 vactx->slice_data = NULL;
116 vactx->slice_data_size = 0;
118 slice_buf_ids[vactx->n_slice_buf_ids++] = slice_param_buf_id;
119 slice_buf_ids[vactx->n_slice_buf_ids++] = slice_data_buf_id;
123 static void *alloc_buffer(struct vaapi_context *vactx, int type, unsigned int size, uint32_t *buf_id)
128 if (vaCreateBuffer(vactx->display, vactx->context_id,
129 type, size, 1, NULL, buf_id) == VA_STATUS_SUCCESS)
130 vaMapBuffer(vactx->display, *buf_id, &data);
135 void *ff_vaapi_alloc_pic_param(struct vaapi_context *vactx, unsigned int size)
137 return alloc_buffer(vactx, VAPictureParameterBufferType, size, &vactx->pic_param_buf_id);
140 void *ff_vaapi_alloc_iq_matrix(struct vaapi_context *vactx, unsigned int size)
142 return alloc_buffer(vactx, VAIQMatrixBufferType, size, &vactx->iq_matrix_buf_id);
145 uint8_t *ff_vaapi_alloc_bitplane(struct vaapi_context *vactx, uint32_t size)
147 return alloc_buffer(vactx, VABitPlaneBufferType, size, &vactx->bitplane_buf_id);
150 VASliceParameterBufferBase *ff_vaapi_alloc_slice(struct vaapi_context *vactx, const uint8_t *buffer, uint32_t size)
152 uint8_t *slice_params;
153 VASliceParameterBufferBase *slice_param;
155 if (!vactx->slice_data)
156 vactx->slice_data = buffer;
157 if (vactx->slice_data + vactx->slice_data_size != buffer) {
158 if (ff_vaapi_commit_slices(vactx) < 0)
160 vactx->slice_data = buffer;
164 av_fast_realloc(vactx->slice_params,
165 &vactx->slice_params_alloc,
166 (vactx->slice_count + 1) * vactx->slice_param_size);
169 vactx->slice_params = slice_params;
171 slice_param = (VASliceParameterBufferBase *)(slice_params + vactx->slice_count * vactx->slice_param_size);
172 slice_param->slice_data_size = size;
173 slice_param->slice_data_offset = vactx->slice_data_size;
174 slice_param->slice_data_flag = VA_SLICE_DATA_FLAG_ALL;
176 vactx->slice_count++;
177 vactx->slice_data_size += size;
181 void ff_vaapi_common_end_frame(AVCodecContext *avctx)
183 struct vaapi_context * const vactx = avctx->hwaccel_context;
185 av_dlog(avctx, "ff_vaapi_common_end_frame()\n");
187 destroy_buffers(vactx->display, &vactx->pic_param_buf_id, 1);
188 destroy_buffers(vactx->display, &vactx->iq_matrix_buf_id, 1);
189 destroy_buffers(vactx->display, &vactx->bitplane_buf_id, 1);
190 destroy_buffers(vactx->display, vactx->slice_buf_ids, vactx->n_slice_buf_ids);
191 av_freep(&vactx->slice_buf_ids);
192 av_freep(&vactx->slice_params);
193 vactx->n_slice_buf_ids = 0;
194 vactx->slice_buf_ids_alloc = 0;
195 vactx->slice_count = 0;
196 vactx->slice_params_alloc = 0;
199 int ff_vaapi_mpeg_end_frame(AVCodecContext *avctx)
201 struct vaapi_context * const vactx = avctx->hwaccel_context;
202 MpegEncContext *s = avctx->priv_data;
205 ret = ff_vaapi_commit_slices(vactx);
209 ret = ff_vaapi_render_picture(vactx,
210 ff_vaapi_get_surface_id(s->current_picture_ptr));
214 ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
217 ff_vaapi_common_end_frame(avctx);