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 *
5 * Copyright (c) 2008 NVIDIA
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"
27#include "vc1.h"
28
29#undef NDEBUG
30#include <assert.h>
31
32#include "vdpau.h"
33#include "vdpau_internal.h"
34
35/**
36 * \addtogroup VDPAU_Decoding
37 *
38 * @{
39 */
40
41void ff_vdpau_h264_set_reference_frames(MpegEncContext *s)
42{
43    H264Context *h = s->avctx->priv_data;
44    struct vdpau_render_state *render, *render_ref;
45    VdpReferenceFrameH264 *rf, *rf2;
46    Picture *pic;
47    int i, list, pic_frame_idx;
48
49    render = (struct vdpau_render_state *)s->current_picture_ptr->data[0];
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
65            render_ref = (struct vdpau_render_state *)pic->data[0];
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
110void ff_vdpau_add_data_chunk(MpegEncContext *s,
111                             const uint8_t *buf, int buf_size)
112{
113    struct vdpau_render_state *render;
114
115    render = (struct vdpau_render_state *)s->current_picture_ptr->data[0];
116    assert(render);
117
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)
122    );
123
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++;
128}
129
130void ff_vdpau_h264_picture_complete(MpegEncContext *s)
131{
132    H264Context *h = s->avctx->priv_data;
133    struct vdpau_render_state *render;
134    int i;
135
136    render = (struct vdpau_render_state *)s->current_picture_ptr->data[0];
137    assert(render);
138
139    render->info.h264.slice_count = h->slice_num;
140    if (render->info.h264.slice_count < 1)
141        return;
142
143    for (i = 0; i < 2; ++i) {
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 & 3) ? 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;
155    render->info.h264.mb_adaptive_frame_field_flag           = h->sps.mb_aff && !render->info.h264.field_pic_flag;
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);
179    render->bitstream_buffers_used = 0;
180}
181
182void ff_vdpau_mpeg_picture_complete(MpegEncContext *s, const uint8_t *buf,
183                                    int buf_size, int slice_count)
184{
185    struct vdpau_render_state *render, *last, *next;
186    int i;
187
188    if (!s->current_picture_ptr) return;
189
190    render = (struct vdpau_render_state *)s->current_picture_ptr->data[0];
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:
219        next = (struct vdpau_render_state *)s->next_picture.data[0];
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:
224        last = (struct vdpau_render_state *)s->last_picture.data[0];
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
239void ff_vdpau_vc1_decode_picture(MpegEncContext *s, const uint8_t *buf,
240                                 int buf_size)
241{
242    VC1Context *v = s->avctx->priv_data;
243    struct vdpau_render_state *render, *last, *next;
244
245    render = (struct vdpau_render_state *)s->current_picture.data[0];
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 | (v->rangeredfrm << 1);
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:
289        next = (struct vdpau_render_state *)s->next_picture.data[0];
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:
294        last = (struct vdpau_render_state *)s->last_picture.data[0];
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
308/* @}*/
309