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)
52 vaUnmapBuffer(vactx->display, vactx->pic_param_buf_id);
53 va_buffers[n_va_buffers++] = vactx->pic_param_buf_id;
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;
60 if (vactx->bitplane_buf_id) {
61 vaUnmapBuffer(vactx->display, vactx->bitplane_buf_id);
62 va_buffers[n_va_buffers++] = vactx->bitplane_buf_id;
65 if (vaBeginPicture(vactx->display, vactx->context_id,
66 surface) != VA_STATUS_SUCCESS)
69 if (vaRenderPicture(vactx->display, vactx->context_id,
70 va_buffers, n_va_buffers) != VA_STATUS_SUCCESS)
73 if (vaRenderPicture(vactx->display, vactx->context_id,
75 vactx->n_slice_buf_ids) != VA_STATUS_SUCCESS)
78 if (vaEndPicture(vactx->display, vactx->context_id) != VA_STATUS_SUCCESS)
84 int ff_vaapi_commit_slices(struct vaapi_context *vactx)
86 VABufferID *slice_buf_ids;
87 VABufferID slice_param_buf_id, slice_data_buf_id;
89 if (vactx->slice_count == 0)
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]));
98 vactx->slice_buf_ids = slice_buf_ids;
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)
107 vactx->slice_count = 0;
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)
116 vactx->slice_data = NULL;
117 vactx->slice_data_size = 0;
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;
124 static void *alloc_buffer(struct vaapi_context *vactx, int type, unsigned int size, uint32_t *buf_id)
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);
136 void *ff_vaapi_alloc_pic_param(struct vaapi_context *vactx, unsigned int size)
138 return alloc_buffer(vactx, VAPictureParameterBufferType, size, &vactx->pic_param_buf_id);
141 void *ff_vaapi_alloc_iq_matrix(struct vaapi_context *vactx, unsigned int size)
143 return alloc_buffer(vactx, VAIQMatrixBufferType, size, &vactx->iq_matrix_buf_id);
146 uint8_t *ff_vaapi_alloc_bitplane(struct vaapi_context *vactx, uint32_t size)
148 return alloc_buffer(vactx, VABitPlaneBufferType, size, &vactx->bitplane_buf_id);
151 VASliceParameterBufferBase *ff_vaapi_alloc_slice(struct vaapi_context *vactx, const uint8_t *buffer, uint32_t size)
153 uint8_t *slice_params;
154 VASliceParameterBufferBase *slice_param;
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)
161 vactx->slice_data = buffer;
165 av_fast_realloc(vactx->slice_params,
166 &vactx->slice_params_alloc,
167 (vactx->slice_count + 1) * vactx->slice_param_size);
170 vactx->slice_params = slice_params;
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;
177 vactx->slice_count++;
178 vactx->slice_data_size += size;
182 void ff_vaapi_common_end_frame(AVCodecContext *avctx)
184 struct vaapi_context * const vactx = avctx->hwaccel_context;
186 ff_dlog(avctx, "ff_vaapi_common_end_frame()\n");
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;
200 #if CONFIG_H263_VAAPI_HWACCEL || CONFIG_MPEG1_VAAPI_HWACCEL || \
201 CONFIG_MPEG2_VAAPI_HWACCEL || CONFIG_MPEG4_VAAPI_HWACCEL || \
202 CONFIG_VC1_VAAPI_HWACCEL || CONFIG_WMV3_VAAPI_HWACCEL
203 int ff_vaapi_mpeg_end_frame(AVCodecContext *avctx)
205 struct vaapi_context * const vactx = avctx->hwaccel_context;
206 MpegEncContext *s = avctx->priv_data;
209 ret = ff_vaapi_commit_slices(vactx);
213 ret = ff_vaapi_render_picture(vactx,
214 ff_vaapi_get_surface_id(s->current_picture_ptr->f));
218 ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
221 ff_vaapi_common_end_frame(avctx);