| 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 | |
| 33 | static 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 | |
| 44 | int 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 | |
| 84 | int 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 | |
| 124 | static 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 | |
| 136 | void *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 | |
| 141 | void *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 | |
| 146 | uint8_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 | |
| 151 | VASliceParameterBufferBase *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 | |
| 182 | void 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 | /* @} */ |