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 Libav.
9 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 #include "mpegvideo.h"
26 #include "vaapi_internal.h"
29 * @addtogroup VAAPI_Decoding
34 static void destroy_buffers(VADisplay display, VABufferID *buffers, unsigned int n_buffers)
37 for (i = 0; i < n_buffers; i++) {
39 vaDestroyBuffer(display, buffers[i]);
45 int ff_vaapi_render_picture(struct vaapi_context *vactx, VASurfaceID surface)
47 VABufferID va_buffers[3];
48 unsigned int n_va_buffers = 0;
50 vaUnmapBuffer(vactx->display, vactx->pic_param_buf_id);
51 va_buffers[n_va_buffers++] = vactx->pic_param_buf_id;
53 if (vactx->iq_matrix_buf_id) {
54 vaUnmapBuffer(vactx->display, vactx->iq_matrix_buf_id);
55 va_buffers[n_va_buffers++] = vactx->iq_matrix_buf_id;
58 if (vactx->bitplane_buf_id) {
59 vaUnmapBuffer(vactx->display, vactx->bitplane_buf_id);
60 va_buffers[n_va_buffers++] = vactx->bitplane_buf_id;
63 if (vaBeginPicture(vactx->display, vactx->context_id,
64 surface) != VA_STATUS_SUCCESS)
67 if (vaRenderPicture(vactx->display, vactx->context_id,
68 va_buffers, n_va_buffers) != VA_STATUS_SUCCESS)
71 if (vaRenderPicture(vactx->display, vactx->context_id,
73 vactx->n_slice_buf_ids) != VA_STATUS_SUCCESS)
76 if (vaEndPicture(vactx->display, vactx->context_id) != VA_STATUS_SUCCESS)
82 int ff_vaapi_commit_slices(struct vaapi_context *vactx)
84 VABufferID *slice_buf_ids;
85 VABufferID slice_param_buf_id, slice_data_buf_id;
87 if (vactx->slice_count == 0)
91 av_fast_realloc(vactx->slice_buf_ids,
92 &vactx->slice_buf_ids_alloc,
93 (vactx->n_slice_buf_ids + 2) * sizeof(slice_buf_ids[0]));
96 vactx->slice_buf_ids = slice_buf_ids;
98 slice_param_buf_id = 0;
99 if (vaCreateBuffer(vactx->display, vactx->context_id,
100 VASliceParameterBufferType,
101 vactx->slice_param_size,
102 vactx->slice_count, vactx->slice_params,
103 &slice_param_buf_id) != VA_STATUS_SUCCESS)
105 vactx->slice_count = 0;
107 slice_data_buf_id = 0;
108 if (vaCreateBuffer(vactx->display, vactx->context_id,
109 VASliceDataBufferType,
110 vactx->slice_data_size,
111 1, (void *)vactx->slice_data,
112 &slice_data_buf_id) != VA_STATUS_SUCCESS)
114 vactx->slice_data = NULL;
115 vactx->slice_data_size = 0;
117 slice_buf_ids[vactx->n_slice_buf_ids++] = slice_param_buf_id;
118 slice_buf_ids[vactx->n_slice_buf_ids++] = slice_data_buf_id;
122 static void *alloc_buffer(struct vaapi_context *vactx, int type, unsigned int size, uint32_t *buf_id)
127 if (vaCreateBuffer(vactx->display, vactx->context_id,
128 type, size, 1, NULL, buf_id) == VA_STATUS_SUCCESS)
129 vaMapBuffer(vactx->display, *buf_id, &data);
134 void *ff_vaapi_alloc_pic_param(struct vaapi_context *vactx, unsigned int size)
136 return alloc_buffer(vactx, VAPictureParameterBufferType, size, &vactx->pic_param_buf_id);
139 void *ff_vaapi_alloc_iq_matrix(struct vaapi_context *vactx, unsigned int size)
141 return alloc_buffer(vactx, VAIQMatrixBufferType, size, &vactx->iq_matrix_buf_id);
144 uint8_t *ff_vaapi_alloc_bitplane(struct vaapi_context *vactx, uint32_t size)
146 return alloc_buffer(vactx, VABitPlaneBufferType, size, &vactx->bitplane_buf_id);
149 VASliceParameterBufferBase *ff_vaapi_alloc_slice(struct vaapi_context *vactx, const uint8_t *buffer, uint32_t size)
151 uint8_t *slice_params;
152 VASliceParameterBufferBase *slice_param;
154 if (!vactx->slice_data)
155 vactx->slice_data = buffer;
156 if (vactx->slice_data + vactx->slice_data_size != buffer) {
157 if (ff_vaapi_commit_slices(vactx) < 0)
159 vactx->slice_data = buffer;
163 av_fast_realloc(vactx->slice_params,
164 &vactx->slice_params_alloc,
165 (vactx->slice_count + 1) * vactx->slice_param_size);
168 vactx->slice_params = slice_params;
170 slice_param = (VASliceParameterBufferBase *)(slice_params + vactx->slice_count * vactx->slice_param_size);
171 slice_param->slice_data_size = size;
172 slice_param->slice_data_offset = vactx->slice_data_size;
173 slice_param->slice_data_flag = VA_SLICE_DATA_FLAG_ALL;
175 vactx->slice_count++;
176 vactx->slice_data_size += size;
180 void ff_vaapi_common_end_frame(AVCodecContext *avctx)
182 struct vaapi_context * const vactx = avctx->hwaccel_context;
184 ff_dlog(avctx, "ff_vaapi_common_end_frame()\n");
186 destroy_buffers(vactx->display, &vactx->pic_param_buf_id, 1);
187 destroy_buffers(vactx->display, &vactx->iq_matrix_buf_id, 1);
188 destroy_buffers(vactx->display, &vactx->bitplane_buf_id, 1);
189 destroy_buffers(vactx->display, vactx->slice_buf_ids, vactx->n_slice_buf_ids);
190 av_freep(&vactx->slice_buf_ids);
191 av_freep(&vactx->slice_params);
192 vactx->n_slice_buf_ids = 0;
193 vactx->slice_buf_ids_alloc = 0;
194 vactx->slice_count = 0;
195 vactx->slice_params_alloc = 0;
198 #if CONFIG_H263_VAAPI_HWACCEL || CONFIG_MPEG1_VAAPI_HWACCEL || \
199 CONFIG_MPEG2_VAAPI_HWACCEL || CONFIG_MPEG4_VAAPI_HWACCEL || \
200 CONFIG_VC1_VAAPI_HWACCEL || CONFIG_WMV3_VAAPI_HWACCEL
201 int ff_vaapi_mpeg_end_frame(AVCodecContext *avctx)
203 struct vaapi_context * const vactx = avctx->hwaccel_context;
204 MpegEncContext *s = avctx->priv_data;
207 ret = ff_vaapi_commit_slices(vactx);
211 ret = ff_vaapi_render_picture(vactx,
212 ff_vaapi_get_surface_id(s->current_picture_ptr->f));
216 ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
219 ff_vaapi_common_end_frame(avctx);