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2ba45a60 DM |
1 | /* |
2 | * MPEG-4 Part 10 / AVC / H.264 HW decode acceleration through VDPAU | |
3 | * | |
4 | * Copyright (c) 2008 NVIDIA | |
5 | * Copyright (c) 2013 RĂ©mi Denis-Courmont | |
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 Foundation, | |
21 | * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
22 | */ | |
23 | ||
24 | #include <vdpau/vdpau.h> | |
25 | ||
26 | #include "avcodec.h" | |
f6fa7814 | 27 | #include "internal.h" |
2ba45a60 DM |
28 | #include "h264.h" |
29 | #include "mpegutils.h" | |
30 | #include "vdpau.h" | |
31 | #include "vdpau_internal.h" | |
32 | ||
33 | static int32_t h264_foc(int foc) | |
34 | { | |
35 | if (foc == INT_MAX) | |
36 | foc = 0; | |
37 | return foc; | |
38 | } | |
39 | ||
40 | static void vdpau_h264_clear_rf(VdpReferenceFrameH264 *rf) | |
41 | { | |
42 | rf->surface = VDP_INVALID_HANDLE; | |
43 | rf->is_long_term = VDP_FALSE; | |
44 | rf->top_is_reference = VDP_FALSE; | |
45 | rf->bottom_is_reference = VDP_FALSE; | |
46 | rf->field_order_cnt[0] = 0; | |
47 | rf->field_order_cnt[1] = 0; | |
48 | rf->frame_idx = 0; | |
49 | } | |
50 | ||
51 | static void vdpau_h264_set_rf(VdpReferenceFrameH264 *rf, H264Picture *pic, | |
52 | int pic_structure) | |
53 | { | |
54 | VdpVideoSurface surface = ff_vdpau_get_surface_id(&pic->f); | |
55 | ||
56 | if (pic_structure == 0) | |
57 | pic_structure = pic->reference; | |
58 | ||
59 | rf->surface = surface; | |
60 | rf->is_long_term = pic->reference && pic->long_ref; | |
61 | rf->top_is_reference = (pic_structure & PICT_TOP_FIELD) != 0; | |
62 | rf->bottom_is_reference = (pic_structure & PICT_BOTTOM_FIELD) != 0; | |
63 | rf->field_order_cnt[0] = h264_foc(pic->field_poc[0]); | |
64 | rf->field_order_cnt[1] = h264_foc(pic->field_poc[1]); | |
65 | rf->frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num; | |
66 | } | |
67 | ||
68 | static void vdpau_h264_set_reference_frames(AVCodecContext *avctx) | |
69 | { | |
70 | H264Context * const h = avctx->priv_data; | |
71 | struct vdpau_picture_context *pic_ctx = h->cur_pic_ptr->hwaccel_picture_private; | |
72 | VdpPictureInfoH264 *info = &pic_ctx->info.h264; | |
73 | int list; | |
74 | ||
75 | VdpReferenceFrameH264 *rf = &info->referenceFrames[0]; | |
76 | #define H264_RF_COUNT FF_ARRAY_ELEMS(info->referenceFrames) | |
77 | ||
78 | for (list = 0; list < 2; ++list) { | |
79 | H264Picture **lp = list ? h->long_ref : h->short_ref; | |
80 | int i, ls = list ? 16 : h->short_ref_count; | |
81 | ||
82 | for (i = 0; i < ls; ++i) { | |
83 | H264Picture *pic = lp[i]; | |
84 | VdpReferenceFrameH264 *rf2; | |
85 | VdpVideoSurface surface_ref; | |
86 | int pic_frame_idx; | |
87 | ||
88 | if (!pic || !pic->reference) | |
89 | continue; | |
90 | pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num; | |
91 | surface_ref = ff_vdpau_get_surface_id(&pic->f); | |
92 | ||
93 | rf2 = &info->referenceFrames[0]; | |
94 | while (rf2 != rf) { | |
95 | if ((rf2->surface == surface_ref) && | |
96 | (rf2->is_long_term == pic->long_ref) && | |
97 | (rf2->frame_idx == pic_frame_idx)) | |
98 | break; | |
99 | ++rf2; | |
100 | } | |
101 | if (rf2 != rf) { | |
102 | rf2->top_is_reference |= (pic->reference & PICT_TOP_FIELD) ? VDP_TRUE : VDP_FALSE; | |
103 | rf2->bottom_is_reference |= (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE; | |
104 | continue; | |
105 | } | |
106 | ||
107 | if (rf >= &info->referenceFrames[H264_RF_COUNT]) | |
108 | continue; | |
109 | ||
110 | vdpau_h264_set_rf(rf, pic, pic->reference); | |
111 | ++rf; | |
112 | } | |
113 | } | |
114 | ||
115 | for (; rf < &info->referenceFrames[H264_RF_COUNT]; ++rf) | |
116 | vdpau_h264_clear_rf(rf); | |
117 | } | |
118 | ||
119 | static int vdpau_h264_start_frame(AVCodecContext *avctx, | |
120 | const uint8_t *buffer, uint32_t size) | |
121 | { | |
122 | H264Context * const h = avctx->priv_data; | |
123 | H264Picture *pic = h->cur_pic_ptr; | |
124 | struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private; | |
125 | VdpPictureInfoH264 *info = &pic_ctx->info.h264; | |
126 | ||
127 | /* init VdpPictureInfoH264 */ | |
128 | info->slice_count = 0; | |
129 | info->field_order_cnt[0] = h264_foc(pic->field_poc[0]); | |
130 | info->field_order_cnt[1] = h264_foc(pic->field_poc[1]); | |
131 | info->is_reference = h->nal_ref_idc != 0; | |
132 | info->frame_num = h->frame_num; | |
133 | info->field_pic_flag = h->picture_structure != PICT_FRAME; | |
134 | info->bottom_field_flag = h->picture_structure == PICT_BOTTOM_FIELD; | |
135 | info->num_ref_frames = h->sps.ref_frame_count; | |
136 | info->mb_adaptive_frame_field_flag = h->sps.mb_aff && !info->field_pic_flag; | |
137 | info->constrained_intra_pred_flag = h->pps.constrained_intra_pred; | |
138 | info->weighted_pred_flag = h->pps.weighted_pred; | |
139 | info->weighted_bipred_idc = h->pps.weighted_bipred_idc; | |
140 | info->frame_mbs_only_flag = h->sps.frame_mbs_only_flag; | |
141 | info->transform_8x8_mode_flag = h->pps.transform_8x8_mode; | |
142 | info->chroma_qp_index_offset = h->pps.chroma_qp_index_offset[0]; | |
143 | info->second_chroma_qp_index_offset = h->pps.chroma_qp_index_offset[1]; | |
144 | info->pic_init_qp_minus26 = h->pps.init_qp - 26; | |
145 | info->num_ref_idx_l0_active_minus1 = h->pps.ref_count[0] - 1; | |
146 | info->num_ref_idx_l1_active_minus1 = h->pps.ref_count[1] - 1; | |
147 | info->log2_max_frame_num_minus4 = h->sps.log2_max_frame_num - 4; | |
148 | info->pic_order_cnt_type = h->sps.poc_type; | |
149 | info->log2_max_pic_order_cnt_lsb_minus4 = h->sps.poc_type ? 0 : h->sps.log2_max_poc_lsb - 4; | |
150 | info->delta_pic_order_always_zero_flag = h->sps.delta_pic_order_always_zero_flag; | |
151 | info->direct_8x8_inference_flag = h->sps.direct_8x8_inference_flag; | |
152 | info->entropy_coding_mode_flag = h->pps.cabac; | |
153 | info->pic_order_present_flag = h->pps.pic_order_present; | |
154 | info->deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present; | |
155 | info->redundant_pic_cnt_present_flag = h->pps.redundant_pic_cnt_present; | |
156 | ||
157 | memcpy(info->scaling_lists_4x4, h->pps.scaling_matrix4, | |
158 | sizeof(info->scaling_lists_4x4)); | |
159 | memcpy(info->scaling_lists_8x8[0], h->pps.scaling_matrix8[0], | |
160 | sizeof(info->scaling_lists_8x8[0])); | |
161 | memcpy(info->scaling_lists_8x8[1], h->pps.scaling_matrix8[3], | |
162 | sizeof(info->scaling_lists_8x8[1])); | |
163 | ||
164 | vdpau_h264_set_reference_frames(avctx); | |
165 | ||
166 | return ff_vdpau_common_start_frame(pic_ctx, buffer, size); | |
167 | } | |
168 | ||
169 | static const uint8_t start_code_prefix[3] = { 0x00, 0x00, 0x01 }; | |
170 | ||
171 | static int vdpau_h264_decode_slice(AVCodecContext *avctx, | |
172 | const uint8_t *buffer, uint32_t size) | |
173 | { | |
174 | H264Context *h = avctx->priv_data; | |
175 | H264Picture *pic = h->cur_pic_ptr; | |
176 | struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private; | |
177 | int val; | |
178 | ||
179 | val = ff_vdpau_add_buffer(pic_ctx, start_code_prefix, 3); | |
180 | if (val) | |
181 | return val; | |
182 | ||
183 | val = ff_vdpau_add_buffer(pic_ctx, buffer, size); | |
184 | if (val) | |
185 | return val; | |
186 | ||
187 | pic_ctx->info.h264.slice_count++; | |
188 | return 0; | |
189 | } | |
190 | ||
191 | static int vdpau_h264_end_frame(AVCodecContext *avctx) | |
192 | { | |
2ba45a60 DM |
193 | H264Context *h = avctx->priv_data; |
194 | H264Picture *pic = h->cur_pic_ptr; | |
195 | struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private; | |
f6fa7814 DM |
196 | int val; |
197 | ||
198 | val = ff_vdpau_common_end_frame(avctx, &pic->f, pic_ctx); | |
199 | if (val < 0) | |
200 | return val; | |
2ba45a60 DM |
201 | |
202 | ff_h264_draw_horiz_band(h, 0, h->avctx->height); | |
f6fa7814 DM |
203 | return 0; |
204 | } | |
205 | ||
206 | static int vdpau_h264_init(AVCodecContext *avctx) | |
207 | { | |
208 | VdpDecoderProfile profile; | |
209 | uint32_t level = avctx->level; | |
210 | ||
211 | switch (avctx->profile & ~FF_PROFILE_H264_INTRA) { | |
212 | case FF_PROFILE_H264_BASELINE: | |
213 | profile = VDP_DECODER_PROFILE_H264_BASELINE; | |
214 | break; | |
215 | case FF_PROFILE_H264_CONSTRAINED_BASELINE: | |
216 | case FF_PROFILE_H264_MAIN: | |
217 | profile = VDP_DECODER_PROFILE_H264_MAIN; | |
218 | break; | |
219 | case FF_PROFILE_H264_HIGH: | |
220 | profile = VDP_DECODER_PROFILE_H264_HIGH; | |
221 | break; | |
222 | default: | |
223 | return AVERROR(ENOTSUP); | |
224 | } | |
2ba45a60 | 225 | |
f6fa7814 DM |
226 | if ((avctx->profile & FF_PROFILE_H264_INTRA) && avctx->level == 11) |
227 | level = VDP_DECODER_LEVEL_H264_1b; | |
2ba45a60 | 228 | |
f6fa7814 | 229 | return ff_vdpau_common_init(avctx, profile, level); |
2ba45a60 DM |
230 | } |
231 | ||
232 | AVHWAccel ff_h264_vdpau_hwaccel = { | |
233 | .name = "h264_vdpau", | |
234 | .type = AVMEDIA_TYPE_VIDEO, | |
235 | .id = AV_CODEC_ID_H264, | |
236 | .pix_fmt = AV_PIX_FMT_VDPAU, | |
237 | .start_frame = vdpau_h264_start_frame, | |
238 | .end_frame = vdpau_h264_end_frame, | |
239 | .decode_slice = vdpau_h264_decode_slice, | |
240 | .frame_priv_data_size = sizeof(struct vdpau_picture_context), | |
f6fa7814 DM |
241 | .init = vdpau_h264_init, |
242 | .uninit = ff_vdpau_common_uninit, | |
243 | .priv_data_size = sizeof(VDPAUContext), | |
2ba45a60 | 244 | }; |