]> git.sesse.net Git - ffmpeg/blob - libavcodec/vdpau.c
Merge commit '88bd7fdc821aaa0cbcf44cf075c62aaa42121e3f'
[ffmpeg] / libavcodec / vdpau.c
1 /*
2  * Video Decode and Presentation API for UNIX (VDPAU) is used for
3  * HW decode acceleration for MPEG-1/2, MPEG-4 ASP, 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
41 int ff_vdpau_common_start_frame(AVCodecContext *avctx,
42                                 av_unused const uint8_t *buffer,
43                                 av_unused uint32_t size)
44 {
45     AVVDPAUContext *hwctx = avctx->hwaccel_context;
46
47     hwctx->bitstream_buffers_used = 0;
48     return 0;
49 }
50
51 int ff_vdpau_common_end_frame(AVCodecContext *avctx)
52 {
53     MpegEncContext * const s = avctx->priv_data;
54     AVVDPAUContext *hwctx = avctx->hwaccel_context;
55
56     if (hwctx->bitstream_buffers_used) {
57         VdpVideoSurface surf = ff_vdpau_get_surface_id(s->current_picture_ptr);
58
59         hwctx->render(hwctx->decoder, surf, (void *)&hwctx->info,
60                       hwctx->bitstream_buffers_used, hwctx->bitstream_buffers);
61
62         ff_draw_horiz_band(s, 0, s->avctx->height);
63         hwctx->bitstream_buffers_used = 0;
64     }
65     return 0;
66 }
67
68 int ff_vdpau_add_buffer(AVCodecContext *avctx,
69                         const uint8_t *buf, uint32_t size)
70 {
71     AVVDPAUContext *hwctx = avctx->hwaccel_context;
72     VdpBitstreamBuffer *buffers = hwctx->bitstream_buffers;
73
74     buffers = av_fast_realloc(buffers, &hwctx->bitstream_buffers_allocated,
75                               (hwctx->bitstream_buffers_used + 1) * sizeof(*buffers));
76     if (!buffers)
77         return AVERROR(ENOMEM);
78
79     hwctx->bitstream_buffers = buffers;
80     buffers += hwctx->bitstream_buffers_used++;
81
82     buffers->struct_version  = VDP_BITSTREAM_BUFFER_VERSION;
83     buffers->bitstream       = buf;
84     buffers->bitstream_bytes = size;
85     return 0;
86 }
87
88 /* Obsolete non-hwaccel VDPAU support below... */
89
90 void ff_vdpau_h264_set_reference_frames(MpegEncContext *s)
91 {
92     H264Context *h = s->avctx->priv_data;
93     struct vdpau_render_state *render, *render_ref;
94     VdpReferenceFrameH264 *rf, *rf2;
95     Picture *pic;
96     int i, list, pic_frame_idx;
97
98     render = (struct vdpau_render_state *)s->current_picture_ptr->f.data[0];
99     assert(render);
100
101     rf = &render->info.h264.referenceFrames[0];
102 #define H264_RF_COUNT FF_ARRAY_ELEMS(render->info.h264.referenceFrames)
103
104     for (list = 0; list < 2; ++list) {
105         Picture **lp = list ? h->long_ref : h->short_ref;
106         int ls = list ? 16 : h->short_ref_count;
107
108         for (i = 0; i < ls; ++i) {
109             pic = lp[i];
110             if (!pic || !pic->f.reference)
111                 continue;
112             pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
113
114             render_ref = (struct vdpau_render_state *)pic->f.data[0];
115             assert(render_ref);
116
117             rf2 = &render->info.h264.referenceFrames[0];
118             while (rf2 != rf) {
119                 if (
120                     (rf2->surface == render_ref->surface)
121                     && (rf2->is_long_term == pic->long_ref)
122                     && (rf2->frame_idx == pic_frame_idx)
123                 )
124                     break;
125                 ++rf2;
126             }
127             if (rf2 != rf) {
128                 rf2->top_is_reference    |= (pic->f.reference & PICT_TOP_FIELD)    ? VDP_TRUE : VDP_FALSE;
129                 rf2->bottom_is_reference |= (pic->f.reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
130                 continue;
131             }
132
133             if (rf >= &render->info.h264.referenceFrames[H264_RF_COUNT])
134                 continue;
135
136             rf->surface             = render_ref->surface;
137             rf->is_long_term        = pic->long_ref;
138             rf->top_is_reference    = (pic->f.reference & PICT_TOP_FIELD)    ? VDP_TRUE : VDP_FALSE;
139             rf->bottom_is_reference = (pic->f.reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
140             rf->field_order_cnt[0]  = pic->field_poc[0];
141             rf->field_order_cnt[1]  = pic->field_poc[1];
142             rf->frame_idx           = pic_frame_idx;
143
144             ++rf;
145         }
146     }
147
148     for (; rf < &render->info.h264.referenceFrames[H264_RF_COUNT]; ++rf) {
149         rf->surface             = VDP_INVALID_HANDLE;
150         rf->is_long_term        = 0;
151         rf->top_is_reference    = 0;
152         rf->bottom_is_reference = 0;
153         rf->field_order_cnt[0]  = 0;
154         rf->field_order_cnt[1]  = 0;
155         rf->frame_idx           = 0;
156     }
157 }
158
159 void ff_vdpau_add_data_chunk(MpegEncContext *s,
160                              const uint8_t *buf, int buf_size)
161 {
162     struct vdpau_render_state *render;
163
164     render = (struct vdpau_render_state *)s->current_picture_ptr->f.data[0];
165     assert(render);
166
167     render->bitstream_buffers= av_fast_realloc(
168         render->bitstream_buffers,
169         &render->bitstream_buffers_allocated,
170         sizeof(*render->bitstream_buffers)*(render->bitstream_buffers_used + 1)
171     );
172
173     render->bitstream_buffers[render->bitstream_buffers_used].struct_version  = VDP_BITSTREAM_BUFFER_VERSION;
174     render->bitstream_buffers[render->bitstream_buffers_used].bitstream       = buf;
175     render->bitstream_buffers[render->bitstream_buffers_used].bitstream_bytes = buf_size;
176     render->bitstream_buffers_used++;
177 }
178
179 void ff_vdpau_h264_picture_start(MpegEncContext *s)
180 {
181     H264Context *h = s->avctx->priv_data;
182     struct vdpau_render_state *render;
183     int i;
184
185     render = (struct vdpau_render_state *)s->current_picture_ptr->f.data[0];
186     assert(render);
187
188     for (i = 0; i < 2; ++i) {
189         int foc = s->current_picture_ptr->field_poc[i];
190         if (foc == INT_MAX)
191             foc = 0;
192         render->info.h264.field_order_cnt[i] = foc;
193     }
194
195     render->info.h264.frame_num = h->frame_num;
196 }
197
198 void ff_vdpau_h264_picture_complete(MpegEncContext *s)
199 {
200     H264Context *h = s->avctx->priv_data;
201     struct vdpau_render_state *render;
202
203     render = (struct vdpau_render_state *)s->current_picture_ptr->f.data[0];
204     assert(render);
205
206     render->info.h264.slice_count = h->slice_num;
207     if (render->info.h264.slice_count < 1)
208         return;
209
210     render->info.h264.is_reference                           = (s->current_picture_ptr->f.reference & 3) ? VDP_TRUE : VDP_FALSE;
211     render->info.h264.field_pic_flag                         = s->picture_structure != PICT_FRAME;
212     render->info.h264.bottom_field_flag                      = s->picture_structure == PICT_BOTTOM_FIELD;
213     render->info.h264.num_ref_frames                         = h->sps.ref_frame_count;
214     render->info.h264.mb_adaptive_frame_field_flag           = h->sps.mb_aff && !render->info.h264.field_pic_flag;
215     render->info.h264.constrained_intra_pred_flag            = h->pps.constrained_intra_pred;
216     render->info.h264.weighted_pred_flag                     = h->pps.weighted_pred;
217     render->info.h264.weighted_bipred_idc                    = h->pps.weighted_bipred_idc;
218     render->info.h264.frame_mbs_only_flag                    = h->sps.frame_mbs_only_flag;
219     render->info.h264.transform_8x8_mode_flag                = h->pps.transform_8x8_mode;
220     render->info.h264.chroma_qp_index_offset                 = h->pps.chroma_qp_index_offset[0];
221     render->info.h264.second_chroma_qp_index_offset          = h->pps.chroma_qp_index_offset[1];
222     render->info.h264.pic_init_qp_minus26                    = h->pps.init_qp - 26;
223     render->info.h264.num_ref_idx_l0_active_minus1           = h->pps.ref_count[0] - 1;
224     render->info.h264.num_ref_idx_l1_active_minus1           = h->pps.ref_count[1] - 1;
225     render->info.h264.log2_max_frame_num_minus4              = h->sps.log2_max_frame_num - 4;
226     render->info.h264.pic_order_cnt_type                     = h->sps.poc_type;
227     render->info.h264.log2_max_pic_order_cnt_lsb_minus4      = h->sps.poc_type ? 0 : h->sps.log2_max_poc_lsb - 4;
228     render->info.h264.delta_pic_order_always_zero_flag       = h->sps.delta_pic_order_always_zero_flag;
229     render->info.h264.direct_8x8_inference_flag              = h->sps.direct_8x8_inference_flag;
230     render->info.h264.entropy_coding_mode_flag               = h->pps.cabac;
231     render->info.h264.pic_order_present_flag                 = h->pps.pic_order_present;
232     render->info.h264.deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present;
233     render->info.h264.redundant_pic_cnt_present_flag         = h->pps.redundant_pic_cnt_present;
234     memcpy(render->info.h264.scaling_lists_4x4, h->pps.scaling_matrix4, sizeof(render->info.h264.scaling_lists_4x4));
235     memcpy(render->info.h264.scaling_lists_8x8[0], h->pps.scaling_matrix8[0], sizeof(render->info.h264.scaling_lists_8x8[0]));
236     memcpy(render->info.h264.scaling_lists_8x8[1], h->pps.scaling_matrix8[3], sizeof(render->info.h264.scaling_lists_8x8[0]));
237
238     ff_draw_horiz_band(s, 0, s->avctx->height);
239     render->bitstream_buffers_used = 0;
240 }
241
242 void ff_vdpau_mpeg_picture_complete(MpegEncContext *s, const uint8_t *buf,
243                                     int buf_size, int slice_count)
244 {
245     struct vdpau_render_state *render, *last, *next;
246     int i;
247
248     if (!s->current_picture_ptr) return;
249
250     render = (struct vdpau_render_state *)s->current_picture_ptr->f.data[0];
251     assert(render);
252
253     /* fill VdpPictureInfoMPEG1Or2 struct */
254     render->info.mpeg.picture_structure          = s->picture_structure;
255     render->info.mpeg.picture_coding_type        = s->pict_type;
256     render->info.mpeg.intra_dc_precision         = s->intra_dc_precision;
257     render->info.mpeg.frame_pred_frame_dct       = s->frame_pred_frame_dct;
258     render->info.mpeg.concealment_motion_vectors = s->concealment_motion_vectors;
259     render->info.mpeg.intra_vlc_format           = s->intra_vlc_format;
260     render->info.mpeg.alternate_scan             = s->alternate_scan;
261     render->info.mpeg.q_scale_type               = s->q_scale_type;
262     render->info.mpeg.top_field_first            = s->top_field_first;
263     render->info.mpeg.full_pel_forward_vector    = s->full_pel[0]; // MPEG-1 only.  Set 0 for MPEG-2
264     render->info.mpeg.full_pel_backward_vector   = s->full_pel[1]; // MPEG-1 only.  Set 0 for MPEG-2
265     render->info.mpeg.f_code[0][0]               = s->mpeg_f_code[0][0]; // For MPEG-1 fill both horiz. & vert.
266     render->info.mpeg.f_code[0][1]               = s->mpeg_f_code[0][1];
267     render->info.mpeg.f_code[1][0]               = s->mpeg_f_code[1][0];
268     render->info.mpeg.f_code[1][1]               = s->mpeg_f_code[1][1];
269     for (i = 0; i < 64; ++i) {
270         render->info.mpeg.intra_quantizer_matrix[i]     = s->intra_matrix[i];
271         render->info.mpeg.non_intra_quantizer_matrix[i] = s->inter_matrix[i];
272     }
273
274     render->info.mpeg.forward_reference          = VDP_INVALID_HANDLE;
275     render->info.mpeg.backward_reference         = VDP_INVALID_HANDLE;
276
277     switch(s->pict_type){
278     case  AV_PICTURE_TYPE_B:
279         next = (struct vdpau_render_state *)s->next_picture.f.data[0];
280         assert(next);
281         render->info.mpeg.backward_reference     = next->surface;
282         // no return here, going to set forward prediction
283     case  AV_PICTURE_TYPE_P:
284         last = (struct vdpau_render_state *)s->last_picture.f.data[0];
285         if (!last) // FIXME: Does this test make sense?
286             last = render; // predict second field from the first
287         render->info.mpeg.forward_reference      = last->surface;
288     }
289
290     ff_vdpau_add_data_chunk(s, buf, buf_size);
291
292     render->info.mpeg.slice_count                = slice_count;
293
294     if (slice_count)
295         ff_draw_horiz_band(s, 0, s->avctx->height);
296     render->bitstream_buffers_used               = 0;
297 }
298
299 void ff_vdpau_vc1_decode_picture(MpegEncContext *s, const uint8_t *buf,
300                                  int buf_size)
301 {
302     VC1Context *v = s->avctx->priv_data;
303     struct vdpau_render_state *render, *last, *next;
304
305     render = (struct vdpau_render_state *)s->current_picture.f.data[0];
306     assert(render);
307
308     /*  fill LvPictureInfoVC1 struct */
309     render->info.vc1.frame_coding_mode  = v->fcm;
310     render->info.vc1.postprocflag       = v->postprocflag;
311     render->info.vc1.pulldown           = v->broadcast;
312     render->info.vc1.interlace          = v->interlace;
313     render->info.vc1.tfcntrflag         = v->tfcntrflag;
314     render->info.vc1.finterpflag        = v->finterpflag;
315     render->info.vc1.psf                = v->psf;
316     render->info.vc1.dquant             = v->dquant;
317     render->info.vc1.panscan_flag       = v->panscanflag;
318     render->info.vc1.refdist_flag       = v->refdist_flag;
319     render->info.vc1.quantizer          = v->quantizer_mode;
320     render->info.vc1.extended_mv        = v->extended_mv;
321     render->info.vc1.extended_dmv       = v->extended_dmv;
322     render->info.vc1.overlap            = v->overlap;
323     render->info.vc1.vstransform        = v->vstransform;
324     render->info.vc1.loopfilter         = v->s.loop_filter;
325     render->info.vc1.fastuvmc           = v->fastuvmc;
326     render->info.vc1.range_mapy_flag    = v->range_mapy_flag;
327     render->info.vc1.range_mapy         = v->range_mapy;
328     render->info.vc1.range_mapuv_flag   = v->range_mapuv_flag;
329     render->info.vc1.range_mapuv        = v->range_mapuv;
330     /* Specific to simple/main profile only */
331     render->info.vc1.multires           = v->multires;
332     render->info.vc1.syncmarker         = v->s.resync_marker;
333     render->info.vc1.rangered           = v->rangered | (v->rangeredfrm << 1);
334     render->info.vc1.maxbframes         = v->s.max_b_frames;
335
336     render->info.vc1.deblockEnable      = v->postprocflag & 1;
337     render->info.vc1.pquant             = v->pq;
338
339     render->info.vc1.forward_reference  = VDP_INVALID_HANDLE;
340     render->info.vc1.backward_reference = VDP_INVALID_HANDLE;
341
342     if (v->bi_type)
343         render->info.vc1.picture_type = 4;
344     else
345         render->info.vc1.picture_type = s->pict_type - 1 + s->pict_type / 3;
346
347     switch(s->pict_type){
348     case  AV_PICTURE_TYPE_B:
349         next = (struct vdpau_render_state *)s->next_picture.f.data[0];
350         assert(next);
351         render->info.vc1.backward_reference = next->surface;
352         // no break here, going to set forward prediction
353     case  AV_PICTURE_TYPE_P:
354         last = (struct vdpau_render_state *)s->last_picture.f.data[0];
355         if (!last) // FIXME: Does this test make sense?
356             last = render; // predict second field from the first
357         render->info.vc1.forward_reference = last->surface;
358     }
359
360     ff_vdpau_add_data_chunk(s, buf, buf_size);
361
362     render->info.vc1.slice_count          = 1;
363
364     ff_draw_horiz_band(s, 0, s->avctx->height);
365     render->bitstream_buffers_used        = 0;
366 }
367
368 void ff_vdpau_mpeg4_decode_picture(MpegEncContext *s, const uint8_t *buf,
369                                    int buf_size)
370 {
371     struct vdpau_render_state *render, *last, *next;
372     int i;
373
374     if (!s->current_picture_ptr) return;
375
376     render = (struct vdpau_render_state *)s->current_picture_ptr->f.data[0];
377     assert(render);
378
379     /* fill VdpPictureInfoMPEG4Part2 struct */
380     render->info.mpeg4.trd[0]                            = s->pp_time;
381     render->info.mpeg4.trb[0]                            = s->pb_time;
382     render->info.mpeg4.trd[1]                            = s->pp_field_time >> 1;
383     render->info.mpeg4.trb[1]                            = s->pb_field_time >> 1;
384     render->info.mpeg4.vop_time_increment_resolution     = s->avctx->time_base.den;
385     render->info.mpeg4.vop_coding_type                   = 0;
386     render->info.mpeg4.vop_fcode_forward                 = s->f_code;
387     render->info.mpeg4.vop_fcode_backward                = s->b_code;
388     render->info.mpeg4.resync_marker_disable             = !s->resync_marker;
389     render->info.mpeg4.interlaced                        = !s->progressive_sequence;
390     render->info.mpeg4.quant_type                        = s->mpeg_quant;
391     render->info.mpeg4.quarter_sample                    = s->quarter_sample;
392     render->info.mpeg4.short_video_header                = s->avctx->codec->id == AV_CODEC_ID_H263;
393     render->info.mpeg4.rounding_control                  = s->no_rounding;
394     render->info.mpeg4.alternate_vertical_scan_flag      = s->alternate_scan;
395     render->info.mpeg4.top_field_first                   = s->top_field_first;
396     for (i = 0; i < 64; ++i) {
397         render->info.mpeg4.intra_quantizer_matrix[i]     = s->intra_matrix[i];
398         render->info.mpeg4.non_intra_quantizer_matrix[i] = s->inter_matrix[i];
399     }
400     render->info.mpeg4.forward_reference                 = VDP_INVALID_HANDLE;
401     render->info.mpeg4.backward_reference                = VDP_INVALID_HANDLE;
402
403     switch (s->pict_type) {
404     case AV_PICTURE_TYPE_B:
405         next = (struct vdpau_render_state *)s->next_picture.f.data[0];
406         assert(next);
407         render->info.mpeg4.backward_reference     = next->surface;
408         render->info.mpeg4.vop_coding_type        = 2;
409         // no break here, going to set forward prediction
410     case AV_PICTURE_TYPE_P:
411         last = (struct vdpau_render_state *)s->last_picture.f.data[0];
412         assert(last);
413         render->info.mpeg4.forward_reference      = last->surface;
414     }
415
416     ff_vdpau_add_data_chunk(s, buf, buf_size);
417
418     ff_draw_horiz_band(s, 0, s->avctx->height);
419     render->bitstream_buffers_used = 0;
420 }
421
422 /* @}*/