100l, always declare variables at the top of a block, not inside a for ()
[libav.git] / libavcodec / vdpau.c
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1/*
2 * Video Decode and Presentation API for UNIX (VDPAU) is used for
3 * HW decode acceleration for MPEG-1/2, H.264 and VC-1.
4 *
406792e7 5 * Copyright (c) 2008 NVIDIA
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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 <limits.h>
25#include "avcodec.h"
26#include "h264.h"
c5b42f4a 27#include "vc1.h"
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28
29#undef NDEBUG
30#include <assert.h>
31
fd949a63 32#include "vdpau.h"
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33#include "vdpau_internal.h"
34
35/**
36 * \addtogroup VDPAU_Decoding
37 *
38 * @{
39 */
40
17170313 41void ff_vdpau_h264_set_reference_frames(MpegEncContext *s)
369122dd 42{
17170313 43 H264Context *h = s->avctx->priv_data;
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44 struct vdpau_render_state *render, *render_ref;
45 VdpReferenceFrameH264 *rf, *rf2;
46 Picture *pic;
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47 int i, list, pic_frame_idx;
48
06aae123 49 render = (struct vdpau_render_state *)s->current_picture_ptr->data[0];
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50 assert(render);
51
52 rf = &render->info.h264.referenceFrames[0];
53#define H264_RF_COUNT FF_ARRAY_ELEMS(render->info.h264.referenceFrames)
54
55 for (list = 0; list < 2; ++list) {
56 Picture **lp = list ? h->long_ref : h->short_ref;
57 int ls = list ? h->long_ref_count : h->short_ref_count;
58
59 for (i = 0; i < ls; ++i) {
60 pic = lp[i];
61 if (!pic || !pic->reference)
62 continue;
63 pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
64
06aae123 65 render_ref = (struct vdpau_render_state *)pic->data[0];
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66 assert(render_ref);
67
68 rf2 = &render->info.h264.referenceFrames[0];
69 while (rf2 != rf) {
70 if (
71 (rf2->surface == render_ref->surface)
72 && (rf2->is_long_term == pic->long_ref)
73 && (rf2->frame_idx == pic_frame_idx)
74 )
75 break;
76 ++rf2;
77 }
78 if (rf2 != rf) {
79 rf2->top_is_reference |= (pic->reference & PICT_TOP_FIELD) ? VDP_TRUE : VDP_FALSE;
80 rf2->bottom_is_reference |= (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
81 continue;
82 }
83
84 if (rf >= &render->info.h264.referenceFrames[H264_RF_COUNT])
85 continue;
86
87 rf->surface = render_ref->surface;
88 rf->is_long_term = pic->long_ref;
89 rf->top_is_reference = (pic->reference & PICT_TOP_FIELD) ? VDP_TRUE : VDP_FALSE;
90 rf->bottom_is_reference = (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
91 rf->field_order_cnt[0] = pic->field_poc[0];
92 rf->field_order_cnt[1] = pic->field_poc[1];
93 rf->frame_idx = pic_frame_idx;
94
95 ++rf;
96 }
97 }
98
99 for (; rf < &render->info.h264.referenceFrames[H264_RF_COUNT]; ++rf) {
100 rf->surface = VDP_INVALID_HANDLE;
101 rf->is_long_term = 0;
102 rf->top_is_reference = 0;
103 rf->bottom_is_reference = 0;
104 rf->field_order_cnt[0] = 0;
105 rf->field_order_cnt[1] = 0;
106 rf->frame_idx = 0;
107 }
108}
109
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110void ff_vdpau_add_data_chunk(MpegEncContext *s,
111 const uint8_t *buf, int buf_size)
369122dd 112{
06aae123 113 struct vdpau_render_state *render;
369122dd 114
06aae123 115 render = (struct vdpau_render_state *)s->current_picture_ptr->data[0];
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116 assert(render);
117
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118 render->bitstream_buffers= av_fast_realloc(
119 render->bitstream_buffers,
120 &render->bitstream_buffers_allocated,
121 sizeof(*render->bitstream_buffers)*(render->bitstream_buffers_used + 1)
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122 );
123
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124 render->bitstream_buffers[render->bitstream_buffers_used].struct_version = VDP_BITSTREAM_BUFFER_VERSION;
125 render->bitstream_buffers[render->bitstream_buffers_used].bitstream = buf;
126 render->bitstream_buffers[render->bitstream_buffers_used].bitstream_bytes = buf_size;
127 render->bitstream_buffers_used++;
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128}
129
17170313 130void ff_vdpau_h264_picture_complete(MpegEncContext *s)
369122dd 131{
17170313 132 H264Context *h = s->avctx->priv_data;
06aae123 133 struct vdpau_render_state *render;
d46b2d68 134 int i;
369122dd 135
06aae123 136 render = (struct vdpau_render_state *)s->current_picture_ptr->data[0];
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137 assert(render);
138
139 render->info.h264.slice_count = h->slice_num;
140 if (render->info.h264.slice_count < 1)
141 return;
142
d46b2d68 143 for (i = 0; i < 2; ++i) {
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144 int foc = s->current_picture_ptr->field_poc[i];
145 if (foc == INT_MAX)
146 foc = 0;
147 render->info.h264.field_order_cnt[i] = foc;
148 }
149
150 render->info.h264.is_reference = s->current_picture_ptr->reference ? VDP_TRUE : VDP_FALSE;
151 render->info.h264.frame_num = h->frame_num;
152 render->info.h264.field_pic_flag = s->picture_structure != PICT_FRAME;
153 render->info.h264.bottom_field_flag = s->picture_structure == PICT_BOTTOM_FIELD;
154 render->info.h264.num_ref_frames = h->sps.ref_frame_count;
ef7ae94b 155 render->info.h264.mb_adaptive_frame_field_flag = h->sps.mb_aff && !render->info.h264.field_pic_flag;
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156 render->info.h264.constrained_intra_pred_flag = h->pps.constrained_intra_pred;
157 render->info.h264.weighted_pred_flag = h->pps.weighted_pred;
158 render->info.h264.weighted_bipred_idc = h->pps.weighted_bipred_idc;
159 render->info.h264.frame_mbs_only_flag = h->sps.frame_mbs_only_flag;
160 render->info.h264.transform_8x8_mode_flag = h->pps.transform_8x8_mode;
161 render->info.h264.chroma_qp_index_offset = h->pps.chroma_qp_index_offset[0];
162 render->info.h264.second_chroma_qp_index_offset = h->pps.chroma_qp_index_offset[1];
163 render->info.h264.pic_init_qp_minus26 = h->pps.init_qp - 26;
164 render->info.h264.num_ref_idx_l0_active_minus1 = h->pps.ref_count[0] - 1;
165 render->info.h264.num_ref_idx_l1_active_minus1 = h->pps.ref_count[1] - 1;
166 render->info.h264.log2_max_frame_num_minus4 = h->sps.log2_max_frame_num - 4;
167 render->info.h264.pic_order_cnt_type = h->sps.poc_type;
168 render->info.h264.log2_max_pic_order_cnt_lsb_minus4 = h->sps.log2_max_poc_lsb - 4;
169 render->info.h264.delta_pic_order_always_zero_flag = h->sps.delta_pic_order_always_zero_flag;
170 render->info.h264.direct_8x8_inference_flag = h->sps.direct_8x8_inference_flag;
171 render->info.h264.entropy_coding_mode_flag = h->pps.cabac;
172 render->info.h264.pic_order_present_flag = h->pps.pic_order_present;
173 render->info.h264.deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present;
174 render->info.h264.redundant_pic_cnt_present_flag = h->pps.redundant_pic_cnt_present;
175 memcpy(render->info.h264.scaling_lists_4x4, h->pps.scaling_matrix4, sizeof(render->info.h264.scaling_lists_4x4));
176 memcpy(render->info.h264.scaling_lists_8x8, h->pps.scaling_matrix8, sizeof(render->info.h264.scaling_lists_8x8));
177
178 ff_draw_horiz_band(s, 0, s->avctx->height);
6cc01c24 179 render->bitstream_buffers_used = 0;
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180}
181
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182void ff_vdpau_mpeg_picture_complete(MpegEncContext *s, const uint8_t *buf,
183 int buf_size, int slice_count)
184{
06aae123 185 struct vdpau_render_state *render, *last, *next;
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186 int i;
187
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188 if (!s->current_picture_ptr) return;
189
06aae123 190 render = (struct vdpau_render_state *)s->current_picture_ptr->data[0];
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191 assert(render);
192
193 /* fill VdpPictureInfoMPEG1Or2 struct */
194 render->info.mpeg.picture_structure = s->picture_structure;
195 render->info.mpeg.picture_coding_type = s->pict_type;
196 render->info.mpeg.intra_dc_precision = s->intra_dc_precision;
197 render->info.mpeg.frame_pred_frame_dct = s->frame_pred_frame_dct;
198 render->info.mpeg.concealment_motion_vectors = s->concealment_motion_vectors;
199 render->info.mpeg.intra_vlc_format = s->intra_vlc_format;
200 render->info.mpeg.alternate_scan = s->alternate_scan;
201 render->info.mpeg.q_scale_type = s->q_scale_type;
202 render->info.mpeg.top_field_first = s->top_field_first;
203 render->info.mpeg.full_pel_forward_vector = s->full_pel[0]; // MPEG-1 only. Set 0 for MPEG-2
204 render->info.mpeg.full_pel_backward_vector = s->full_pel[1]; // MPEG-1 only. Set 0 for MPEG-2
205 render->info.mpeg.f_code[0][0] = s->mpeg_f_code[0][0]; // For MPEG-1 fill both horiz. & vert.
206 render->info.mpeg.f_code[0][1] = s->mpeg_f_code[0][1];
207 render->info.mpeg.f_code[1][0] = s->mpeg_f_code[1][0];
208 render->info.mpeg.f_code[1][1] = s->mpeg_f_code[1][1];
209 for (i = 0; i < 64; ++i) {
210 render->info.mpeg.intra_quantizer_matrix[i] = s->intra_matrix[i];
211 render->info.mpeg.non_intra_quantizer_matrix[i] = s->inter_matrix[i];
212 }
213
214 render->info.mpeg.forward_reference = VDP_INVALID_HANDLE;
215 render->info.mpeg.backward_reference = VDP_INVALID_HANDLE;
216
217 switch(s->pict_type){
218 case FF_B_TYPE:
06aae123 219 next = (struct vdpau_render_state *)s->next_picture.data[0];
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220 assert(next);
221 render->info.mpeg.backward_reference = next->surface;
222 // no return here, going to set forward prediction
223 case FF_P_TYPE:
06aae123 224 last = (struct vdpau_render_state *)s->last_picture.data[0];
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225 if (!last) // FIXME: Does this test make sense?
226 last = render; // predict second field from the first
227 render->info.mpeg.forward_reference = last->surface;
228 }
229
230 ff_vdpau_add_data_chunk(s, buf, buf_size);
231
232 render->info.mpeg.slice_count = slice_count;
233
234 if (slice_count)
235 ff_draw_horiz_band(s, 0, s->avctx->height);
236 render->bitstream_buffers_used = 0;
237}
238
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239void ff_vdpau_vc1_decode_picture(MpegEncContext *s, const uint8_t *buf,
240 int buf_size)
241{
242 VC1Context *v = s->avctx->priv_data;
06aae123 243 struct vdpau_render_state *render, *last, *next;
c5b42f4a 244
06aae123 245 render = (struct vdpau_render_state *)s->current_picture.data[0];
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246 assert(render);
247
248 /* fill LvPictureInfoVC1 struct */
249 render->info.vc1.frame_coding_mode = v->fcm;
250 render->info.vc1.postprocflag = v->postprocflag;
251 render->info.vc1.pulldown = v->broadcast;
252 render->info.vc1.interlace = v->interlace;
253 render->info.vc1.tfcntrflag = v->tfcntrflag;
254 render->info.vc1.finterpflag = v->finterpflag;
255 render->info.vc1.psf = v->psf;
256 render->info.vc1.dquant = v->dquant;
257 render->info.vc1.panscan_flag = v->panscanflag;
258 render->info.vc1.refdist_flag = v->refdist_flag;
259 render->info.vc1.quantizer = v->quantizer_mode;
260 render->info.vc1.extended_mv = v->extended_mv;
261 render->info.vc1.extended_dmv = v->extended_dmv;
262 render->info.vc1.overlap = v->overlap;
263 render->info.vc1.vstransform = v->vstransform;
264 render->info.vc1.loopfilter = v->s.loop_filter;
265 render->info.vc1.fastuvmc = v->fastuvmc;
266 render->info.vc1.range_mapy_flag = v->range_mapy_flag;
267 render->info.vc1.range_mapy = v->range_mapy;
268 render->info.vc1.range_mapuv_flag = v->range_mapuv_flag;
269 render->info.vc1.range_mapuv = v->range_mapuv;
270 /* Specific to simple/main profile only */
271 render->info.vc1.multires = v->multires;
272 render->info.vc1.syncmarker = v->s.resync_marker;
273 render->info.vc1.rangered = v->rangered;
274 render->info.vc1.maxbframes = v->s.max_b_frames;
275
276 render->info.vc1.deblockEnable = v->postprocflag & 1;
277 render->info.vc1.pquant = v->pq;
278
279 render->info.vc1.forward_reference = VDP_INVALID_HANDLE;
280 render->info.vc1.backward_reference = VDP_INVALID_HANDLE;
281
282 if (v->bi_type)
283 render->info.vc1.picture_type = 4;
284 else
285 render->info.vc1.picture_type = s->pict_type - 1 + s->pict_type / 3;
286
287 switch(s->pict_type){
288 case FF_B_TYPE:
06aae123 289 next = (struct vdpau_render_state *)s->next_picture.data[0];
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290 assert(next);
291 render->info.vc1.backward_reference = next->surface;
292 // no break here, going to set forward prediction
293 case FF_P_TYPE:
06aae123 294 last = (struct vdpau_render_state *)s->last_picture.data[0];
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295 if (!last) // FIXME: Does this test make sense?
296 last = render; // predict second field from the first
297 render->info.vc1.forward_reference = last->surface;
298 }
299
300 ff_vdpau_add_data_chunk(s, buf, buf_size);
301
302 render->info.vc1.slice_count = 1;
303
304 ff_draw_horiz_band(s, 0, s->avctx->height);
305 render->bitstream_buffers_used = 0;
306}
307
369122dd 308/* @}*/