avcodec/wmaprodec: cleanup extradata dumping
[ffmpeg.git] / libavcodec / vdpau_h264.c
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"
27 #include "internal.h"
28 #include "h264dec.h"
29 #include "h264_ps.h"
30 #include "mpegutils.h"
31 #include "vdpau.h"
32 #include "vdpau_internal.h"
33
34 static int32_t h264_foc(int foc)
35 {
36     if (foc == INT_MAX)
37         foc = 0;
38     return foc;
39 }
40
41 static void vdpau_h264_clear_rf(VdpReferenceFrameH264 *rf)
42 {
43     rf->surface             = VDP_INVALID_HANDLE;
44     rf->is_long_term        = VDP_FALSE;
45     rf->top_is_reference    = VDP_FALSE;
46     rf->bottom_is_reference = VDP_FALSE;
47     rf->field_order_cnt[0]  = 0;
48     rf->field_order_cnt[1]  = 0;
49     rf->frame_idx           = 0;
50 }
51
52 static void vdpau_h264_set_rf(VdpReferenceFrameH264 *rf, H264Picture *pic,
53                               int pic_structure)
54 {
55     VdpVideoSurface surface = ff_vdpau_get_surface_id(pic->f);
56
57     if (pic_structure == 0)
58         pic_structure = pic->reference;
59
60     rf->surface             = surface;
61     rf->is_long_term        = pic->reference && pic->long_ref;
62     rf->top_is_reference    = (pic_structure & PICT_TOP_FIELD)    != 0;
63     rf->bottom_is_reference = (pic_structure & PICT_BOTTOM_FIELD) != 0;
64     rf->field_order_cnt[0]  = h264_foc(pic->field_poc[0]);
65     rf->field_order_cnt[1]  = h264_foc(pic->field_poc[1]);
66     rf->frame_idx           = pic->long_ref ? pic->pic_id : pic->frame_num;
67 }
68
69 static void vdpau_h264_set_reference_frames(AVCodecContext *avctx)
70 {
71     H264Context * const h = avctx->priv_data;
72     struct vdpau_picture_context *pic_ctx = h->cur_pic_ptr->hwaccel_picture_private;
73     VdpPictureInfoH264 *info = &pic_ctx->info.h264;
74     int list;
75
76     VdpReferenceFrameH264 *rf = &info->referenceFrames[0];
77 #define H264_RF_COUNT FF_ARRAY_ELEMS(info->referenceFrames)
78
79     for (list = 0; list < 2; ++list) {
80         H264Picture **lp = list ? h->long_ref : h->short_ref;
81         int i, ls    = list ? 16          : h->short_ref_count;
82
83         for (i = 0; i < ls; ++i) {
84             H264Picture *pic = lp[i];
85             VdpReferenceFrameH264 *rf2;
86             VdpVideoSurface surface_ref;
87             int pic_frame_idx;
88
89             if (!pic || !pic->reference)
90                 continue;
91             pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
92             surface_ref = ff_vdpau_get_surface_id(pic->f);
93
94             rf2 = &info->referenceFrames[0];
95             while (rf2 != rf) {
96                 if ((rf2->surface      == surface_ref)   &&
97                     (rf2->is_long_term == pic->long_ref) &&
98                     (rf2->frame_idx    == pic_frame_idx))
99                     break;
100                 ++rf2;
101             }
102             if (rf2 != rf) {
103                 rf2->top_is_reference    |= (pic->reference & PICT_TOP_FIELD)    ? VDP_TRUE : VDP_FALSE;
104                 rf2->bottom_is_reference |= (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
105                 continue;
106             }
107
108             if (rf >= &info->referenceFrames[H264_RF_COUNT])
109                 continue;
110
111             vdpau_h264_set_rf(rf, pic, pic->reference);
112             ++rf;
113         }
114     }
115
116     for (; rf < &info->referenceFrames[H264_RF_COUNT]; ++rf)
117         vdpau_h264_clear_rf(rf);
118 }
119
120 static int vdpau_h264_start_frame(AVCodecContext *avctx,
121                                   const uint8_t *buffer, uint32_t size)
122 {
123     H264Context * const h = avctx->priv_data;
124     const PPS *pps = h->ps.pps;
125     const SPS *sps = h->ps.sps;
126     H264Picture *pic = h->cur_pic_ptr;
127     struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
128     VdpPictureInfoH264 *info = &pic_ctx->info.h264;
129 #ifdef VDP_DECODER_PROFILE_H264_HIGH_444_PREDICTIVE
130     VdpPictureInfoH264Predictive *info2 = &pic_ctx->info.h264_predictive;
131 #endif
132
133     /* init VdpPictureInfoH264 */
134     info->slice_count                            = 0;
135     info->field_order_cnt[0]                     = h264_foc(pic->field_poc[0]);
136     info->field_order_cnt[1]                     = h264_foc(pic->field_poc[1]);
137     info->is_reference                           = h->nal_ref_idc != 0;
138     info->frame_num                              = h->poc.frame_num;
139     info->field_pic_flag                         = h->picture_structure != PICT_FRAME;
140     info->bottom_field_flag                      = h->picture_structure == PICT_BOTTOM_FIELD;
141     info->num_ref_frames                         = sps->ref_frame_count;
142     info->mb_adaptive_frame_field_flag           = sps->mb_aff && !info->field_pic_flag;
143     info->constrained_intra_pred_flag            = pps->constrained_intra_pred;
144     info->weighted_pred_flag                     = pps->weighted_pred;
145     info->weighted_bipred_idc                    = pps->weighted_bipred_idc;
146     info->frame_mbs_only_flag                    = sps->frame_mbs_only_flag;
147     info->transform_8x8_mode_flag                = pps->transform_8x8_mode;
148     info->chroma_qp_index_offset                 = pps->chroma_qp_index_offset[0];
149     info->second_chroma_qp_index_offset          = pps->chroma_qp_index_offset[1];
150     info->pic_init_qp_minus26                    = pps->init_qp - 26;
151     info->num_ref_idx_l0_active_minus1           = pps->ref_count[0] - 1;
152     info->num_ref_idx_l1_active_minus1           = pps->ref_count[1] - 1;
153     info->log2_max_frame_num_minus4              = sps->log2_max_frame_num - 4;
154     info->pic_order_cnt_type                     = sps->poc_type;
155     info->log2_max_pic_order_cnt_lsb_minus4      = sps->poc_type ? 0 : sps->log2_max_poc_lsb - 4;
156     info->delta_pic_order_always_zero_flag       = sps->delta_pic_order_always_zero_flag;
157     info->direct_8x8_inference_flag              = sps->direct_8x8_inference_flag;
158 #ifdef VDP_DECODER_PROFILE_H264_HIGH_444_PREDICTIVE
159     info2->qpprime_y_zero_transform_bypass_flag  = sps->transform_bypass;
160     info2->separate_colour_plane_flag            = sps->residual_color_transform_flag;
161 #endif
162     info->entropy_coding_mode_flag               = pps->cabac;
163     info->pic_order_present_flag                 = pps->pic_order_present;
164     info->deblocking_filter_control_present_flag = pps->deblocking_filter_parameters_present;
165     info->redundant_pic_cnt_present_flag         = pps->redundant_pic_cnt_present;
166
167     memcpy(info->scaling_lists_4x4, pps->scaling_matrix4,
168            sizeof(info->scaling_lists_4x4));
169     memcpy(info->scaling_lists_8x8[0], pps->scaling_matrix8[0],
170            sizeof(info->scaling_lists_8x8[0]));
171     memcpy(info->scaling_lists_8x8[1], pps->scaling_matrix8[3],
172            sizeof(info->scaling_lists_8x8[1]));
173
174     vdpau_h264_set_reference_frames(avctx);
175
176     return ff_vdpau_common_start_frame(pic_ctx, buffer, size);
177 }
178
179 static const uint8_t start_code_prefix[3] = { 0x00, 0x00, 0x01 };
180
181 static int vdpau_h264_decode_slice(AVCodecContext *avctx,
182                                    const uint8_t *buffer, uint32_t size)
183 {
184     H264Context *h = avctx->priv_data;
185     H264Picture *pic = h->cur_pic_ptr;
186     struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
187     int val;
188
189     val = ff_vdpau_add_buffer(pic_ctx, start_code_prefix, 3);
190     if (val)
191         return val;
192
193     val = ff_vdpau_add_buffer(pic_ctx, buffer, size);
194     if (val)
195         return val;
196
197     pic_ctx->info.h264.slice_count++;
198     return 0;
199 }
200
201 static int vdpau_h264_end_frame(AVCodecContext *avctx)
202 {
203     H264Context *h = avctx->priv_data;
204     H264SliceContext *sl = &h->slice_ctx[0];
205     H264Picture *pic = h->cur_pic_ptr;
206     struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
207     int val;
208
209     val = ff_vdpau_common_end_frame(avctx, pic->f, pic_ctx);
210     if (val < 0)
211         return val;
212
213     ff_h264_draw_horiz_band(h, sl, 0, h->avctx->height);
214     return 0;
215 }
216
217 static int vdpau_h264_init(AVCodecContext *avctx)
218 {
219     VdpDecoderProfile profile;
220     uint32_t level = avctx->level;
221
222     switch (avctx->profile & ~FF_PROFILE_H264_INTRA) {
223     case FF_PROFILE_H264_BASELINE:
224         profile = VDP_DECODER_PROFILE_H264_BASELINE;
225         break;
226     case FF_PROFILE_H264_CONSTRAINED_BASELINE:
227 #ifdef VDP_DECODER_PROFILE_H264_CONSTRAINED_BASELINE
228         profile = VDP_DECODER_PROFILE_H264_CONSTRAINED_BASELINE;
229         break;
230 #endif
231     case FF_PROFILE_H264_MAIN:
232         profile = VDP_DECODER_PROFILE_H264_MAIN;
233         break;
234     case FF_PROFILE_H264_HIGH:
235         profile = VDP_DECODER_PROFILE_H264_HIGH;
236         break;
237 #ifdef VDP_DECODER_PROFILE_H264_EXTENDED
238     case FF_PROFILE_H264_EXTENDED:
239         profile = VDP_DECODER_PROFILE_H264_EXTENDED;
240         break;
241 #endif
242     case FF_PROFILE_H264_HIGH_10:
243         /* XXX: High 10 can be treated as High so long as only 8 bits per
244          * format are supported. */
245         profile = VDP_DECODER_PROFILE_H264_HIGH;
246         break;
247 #ifdef VDP_DECODER_PROFILE_H264_HIGH_444_PREDICTIVE
248     case FF_PROFILE_H264_HIGH_422:
249     case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
250     case FF_PROFILE_H264_CAVLC_444:
251         profile = VDP_DECODER_PROFILE_H264_HIGH_444_PREDICTIVE;
252         break;
253 #endif
254     default:
255         return AVERROR(ENOTSUP);
256     }
257
258     if ((avctx->profile & FF_PROFILE_H264_INTRA) && avctx->level == 11)
259         level = VDP_DECODER_LEVEL_H264_1b;
260
261     return ff_vdpau_common_init(avctx, profile, level);
262 }
263
264 AVHWAccel ff_h264_vdpau_hwaccel = {
265     .name           = "h264_vdpau",
266     .type           = AVMEDIA_TYPE_VIDEO,
267     .id             = AV_CODEC_ID_H264,
268     .pix_fmt        = AV_PIX_FMT_VDPAU,
269     .start_frame    = vdpau_h264_start_frame,
270     .end_frame      = vdpau_h264_end_frame,
271     .decode_slice   = vdpau_h264_decode_slice,
272     .frame_priv_data_size = sizeof(struct vdpau_picture_context),
273     .init           = vdpau_h264_init,
274     .uninit         = ff_vdpau_common_uninit,
275     .priv_data_size = sizeof(VDPAUContext),
276 };