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vdpau_h264.c
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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 "hwaccel.h"
31 #include "mpegutils.h"
32 #include "vdpau.h"
33 #include "vdpau_internal.h"
34 
35 static int32_t h264_foc(int foc)
36 {
37  if (foc == INT_MAX)
38  foc = 0;
39  return foc;
40 }
41 
42 static void vdpau_h264_clear_rf(VdpReferenceFrameH264 *rf)
43 {
44  rf->surface = VDP_INVALID_HANDLE;
45  rf->is_long_term = VDP_FALSE;
46  rf->top_is_reference = VDP_FALSE;
47  rf->bottom_is_reference = VDP_FALSE;
48  rf->field_order_cnt[0] = 0;
49  rf->field_order_cnt[1] = 0;
50  rf->frame_idx = 0;
51 }
52 
53 static void vdpau_h264_set_rf(VdpReferenceFrameH264 *rf, H264Picture *pic,
54  int pic_structure)
55 {
56  VdpVideoSurface surface = ff_vdpau_get_surface_id(pic->f);
57 
58  if (pic_structure == 0)
59  pic_structure = pic->reference;
60 
61  rf->surface = surface;
62  rf->is_long_term = pic->reference && pic->long_ref;
63  rf->top_is_reference = (pic_structure & PICT_TOP_FIELD) != 0;
64  rf->bottom_is_reference = (pic_structure & PICT_BOTTOM_FIELD) != 0;
65  rf->field_order_cnt[0] = h264_foc(pic->field_poc[0]);
66  rf->field_order_cnt[1] = h264_foc(pic->field_poc[1]);
67  rf->frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
68 }
69 
71 {
72  H264Context * const h = avctx->priv_data;
74  VdpPictureInfoH264 *info = &pic_ctx->info.h264;
75  int list;
76 
77  VdpReferenceFrameH264 *rf = &info->referenceFrames[0];
78 #define H264_RF_COUNT FF_ARRAY_ELEMS(info->referenceFrames)
79 
80  for (list = 0; list < 2; ++list) {
81  H264Picture **lp = list ? h->long_ref : h->short_ref;
82  int i, ls = list ? 16 : h->short_ref_count;
83 
84  for (i = 0; i < ls; ++i) {
85  H264Picture *pic = lp[i];
86  VdpReferenceFrameH264 *rf2;
87  VdpVideoSurface surface_ref;
88  int pic_frame_idx;
89 
90  if (!pic || !pic->reference)
91  continue;
92  pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
93  surface_ref = ff_vdpau_get_surface_id(pic->f);
94 
95  rf2 = &info->referenceFrames[0];
96  while (rf2 != rf) {
97  if ((rf2->surface == surface_ref) &&
98  (rf2->is_long_term == pic->long_ref) &&
99  (rf2->frame_idx == pic_frame_idx))
100  break;
101  ++rf2;
102  }
103  if (rf2 != rf) {
104  rf2->top_is_reference |= (pic->reference & PICT_TOP_FIELD) ? VDP_TRUE : VDP_FALSE;
105  rf2->bottom_is_reference |= (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
106  continue;
107  }
108 
109  if (rf >= &info->referenceFrames[H264_RF_COUNT])
110  continue;
111 
112  vdpau_h264_set_rf(rf, pic, pic->reference);
113  ++rf;
114  }
115  }
116 
117  for (; rf < &info->referenceFrames[H264_RF_COUNT]; ++rf)
119 }
120 
122  const uint8_t *buffer, uint32_t size)
123 {
124  H264Context * const h = avctx->priv_data;
125  const PPS *pps = h->ps.pps;
126  const SPS *sps = h->ps.sps;
127  H264Picture *pic = h->cur_pic_ptr;
128  struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
129  VdpPictureInfoH264 *info = &pic_ctx->info.h264;
130 #ifdef VDP_DECODER_PROFILE_H264_HIGH_444_PREDICTIVE
131  VdpPictureInfoH264Predictive *info2 = &pic_ctx->info.h264_predictive;
132 #endif
133 
134  /* init VdpPictureInfoH264 */
135  info->slice_count = 0;
136  info->field_order_cnt[0] = h264_foc(pic->field_poc[0]);
137  info->field_order_cnt[1] = h264_foc(pic->field_poc[1]);
138  info->is_reference = h->nal_ref_idc != 0;
139  info->frame_num = h->poc.frame_num;
140  info->field_pic_flag = h->picture_structure != PICT_FRAME;
141  info->bottom_field_flag = h->picture_structure == PICT_BOTTOM_FIELD;
142  info->num_ref_frames = sps->ref_frame_count;
143  info->mb_adaptive_frame_field_flag = sps->mb_aff && !info->field_pic_flag;
144  info->constrained_intra_pred_flag = pps->constrained_intra_pred;
145  info->weighted_pred_flag = pps->weighted_pred;
146  info->weighted_bipred_idc = pps->weighted_bipred_idc;
147  info->frame_mbs_only_flag = sps->frame_mbs_only_flag;
148  info->transform_8x8_mode_flag = pps->transform_8x8_mode;
149  info->chroma_qp_index_offset = pps->chroma_qp_index_offset[0];
150  info->second_chroma_qp_index_offset = pps->chroma_qp_index_offset[1];
151  info->pic_init_qp_minus26 = pps->init_qp - 26;
152  info->num_ref_idx_l0_active_minus1 = pps->ref_count[0] - 1;
153  info->num_ref_idx_l1_active_minus1 = pps->ref_count[1] - 1;
154  info->log2_max_frame_num_minus4 = sps->log2_max_frame_num - 4;
155  info->pic_order_cnt_type = sps->poc_type;
156  info->log2_max_pic_order_cnt_lsb_minus4 = sps->poc_type ? 0 : sps->log2_max_poc_lsb - 4;
157  info->delta_pic_order_always_zero_flag = sps->delta_pic_order_always_zero_flag;
158  info->direct_8x8_inference_flag = sps->direct_8x8_inference_flag;
159 #ifdef VDP_DECODER_PROFILE_H264_HIGH_444_PREDICTIVE
160  info2->qpprime_y_zero_transform_bypass_flag = sps->transform_bypass;
161  info2->separate_colour_plane_flag = sps->residual_color_transform_flag;
162 #endif
163  info->entropy_coding_mode_flag = pps->cabac;
164  info->pic_order_present_flag = pps->pic_order_present;
165  info->deblocking_filter_control_present_flag = pps->deblocking_filter_parameters_present;
166  info->redundant_pic_cnt_present_flag = pps->redundant_pic_cnt_present;
167 
168  memcpy(info->scaling_lists_4x4, pps->scaling_matrix4,
169  sizeof(info->scaling_lists_4x4));
170  memcpy(info->scaling_lists_8x8[0], pps->scaling_matrix8[0],
171  sizeof(info->scaling_lists_8x8[0]));
172  memcpy(info->scaling_lists_8x8[1], pps->scaling_matrix8[3],
173  sizeof(info->scaling_lists_8x8[1]));
174 
176 
177  return ff_vdpau_common_start_frame(pic_ctx, buffer, size);
178 }
179 
180 static const uint8_t start_code_prefix[3] = { 0x00, 0x00, 0x01 };
181 
183  const uint8_t *buffer, uint32_t size)
184 {
185  H264Context *h = avctx->priv_data;
186  H264Picture *pic = h->cur_pic_ptr;
187  struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
188  int val;
189 
190  val = ff_vdpau_add_buffer(pic_ctx, start_code_prefix, 3);
191  if (val)
192  return val;
193 
194  val = ff_vdpau_add_buffer(pic_ctx, buffer, size);
195  if (val)
196  return val;
197 
198  pic_ctx->info.h264.slice_count++;
199  return 0;
200 }
201 
203 {
204  H264Context *h = avctx->priv_data;
205  H264SliceContext *sl = &h->slice_ctx[0];
206  H264Picture *pic = h->cur_pic_ptr;
207  struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
208  int val;
209 
210  val = ff_vdpau_common_end_frame(avctx, pic->f, pic_ctx);
211  if (val < 0)
212  return val;
213 
214  ff_h264_draw_horiz_band(h, sl, 0, h->avctx->height);
215  return 0;
216 }
217 
218 static int vdpau_h264_init(AVCodecContext *avctx)
219 {
220  VdpDecoderProfile profile;
221  uint32_t level = avctx->level;
222 
223  switch (avctx->profile & ~FF_PROFILE_H264_INTRA) {
225  profile = VDP_DECODER_PROFILE_H264_BASELINE;
226  break;
228 #ifdef VDP_DECODER_PROFILE_H264_CONSTRAINED_BASELINE
229  profile = VDP_DECODER_PROFILE_H264_CONSTRAINED_BASELINE;
230  break;
231 #endif
233  profile = VDP_DECODER_PROFILE_H264_MAIN;
234  break;
236  profile = VDP_DECODER_PROFILE_H264_HIGH;
237  break;
238 #ifdef VDP_DECODER_PROFILE_H264_EXTENDED
240  profile = VDP_DECODER_PROFILE_H264_EXTENDED;
241  break;
242 #endif
244  /* XXX: High 10 can be treated as High so long as only 8 bits per
245  * format are supported. */
246  profile = VDP_DECODER_PROFILE_H264_HIGH;
247  break;
248 #ifdef VDP_DECODER_PROFILE_H264_HIGH_444_PREDICTIVE
252  profile = VDP_DECODER_PROFILE_H264_HIGH_444_PREDICTIVE;
253  break;
254 #endif
255  default:
256  return AVERROR(ENOTSUP);
257  }
258 
259  if ((avctx->profile & FF_PROFILE_H264_INTRA) && avctx->level == 11)
260  level = VDP_DECODER_LEVEL_H264_1b;
261 
262  return ff_vdpau_common_init(avctx, profile, level);
263 }
264 
266  .name = "h264_vdpau",
267  .type = AVMEDIA_TYPE_VIDEO,
268  .id = AV_CODEC_ID_H264,
269  .pix_fmt = AV_PIX_FMT_VDPAU,
270  .start_frame = vdpau_h264_start_frame,
271  .end_frame = vdpau_h264_end_frame,
272  .decode_slice = vdpau_h264_decode_slice,
273  .frame_priv_data_size = sizeof(struct vdpau_picture_context),
274  .init = vdpau_h264_init,
275  .uninit = ff_vdpau_common_uninit,
276  .priv_data_size = sizeof(VDPAUContext),
277  .caps_internal = HWACCEL_CAP_ASYNC_SAFE,
278 };
#define FF_PROFILE_H264_MAIN
Definition: avcodec.h:3287
const char const char void * val
Definition: avisynth_c.h:771
int long_ref
1->long term reference 0->short term reference
Definition: h264dec.h:154
#define FF_PROFILE_H264_CAVLC_444
Definition: avcodec.h:3299
H264POCContext poc
Definition: h264dec.h:458
int weighted_bipred_idc
Definition: h264_ps.h:116
int chroma_qp_index_offset[2]
Definition: h264_ps.h:119
int ff_vdpau_common_start_frame(struct vdpau_picture_context *pic_ctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
Definition: vdpau.c:314
Sequence parameter set.
Definition: h264_ps.h:43
#define FF_PROFILE_H264_INTRA
Definition: avcodec.h:3283
unsigned int ref_count[2]
num_ref_idx_l0/1_active_minus1 + 1
Definition: h264_ps.h:114
Picture parameter set.
Definition: h264_ps.h:108
int frame_mbs_only_flag
Definition: h264_ps.h:61
H264Context.
Definition: h264dec.h:337
AVFrame * f
Definition: h264dec.h:129
Public libavcodec VDPAU header.
static void vdpau_h264_clear_rf(VdpReferenceFrameH264 *rf)
Definition: vdpau_h264.c:42
H264Picture * long_ref[32]
Definition: h264dec.h:462
int profile
profile
Definition: avcodec.h:3246
int picture_structure
Definition: h264dec.h:406
AVHWAccel ff_h264_vdpau_hwaccel
Definition: vdpau_h264.c:265
#define FF_PROFILE_H264_HIGH_444_PREDICTIVE
Definition: avcodec.h:3297
uint8_t scaling_matrix4[6][16]
Definition: h264_ps.h:124
int deblocking_filter_parameters_present
deblocking_filter_parameters_present_flag
Definition: h264_ps.h:120
#define FF_PROFILE_H264_BASELINE
Definition: avcodec.h:3285
const PPS * pps
Definition: h264_ps.h:144
int ff_vdpau_common_uninit(AVCodecContext *avctx)
Definition: vdpau.c:276
uint8_t
VdpPictureInfoH264 h264
int cabac
entropy_coding_mode_flag
Definition: h264_ps.h:110
#define PICT_BOTTOM_FIELD
Definition: mpegutils.h:38
int transform_bypass
qpprime_y_zero_transform_bypass_flag
Definition: h264_ps.h:48
static int vdpau_h264_start_frame(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
Definition: vdpau_h264.c:121
int redundant_pic_cnt_present
redundant_pic_cnt_present_flag
Definition: h264_ps.h:122
#define FF_PROFILE_H264_EXTENDED
Definition: avcodec.h:3288
ptrdiff_t size
Definition: opengl_enc.c:101
static void vdpau_h264_set_rf(VdpReferenceFrameH264 *rf, H264Picture *pic, int pic_structure)
Definition: vdpau_h264.c:53
void ff_h264_draw_horiz_band(const H264Context *h, H264SliceContext *sl, int y, int height)
Definition: h264dec.c:104
static int32_t h264_foc(int foc)
Definition: vdpau_h264.c:35
H.264 parameter set handling.
int mb_aff
mb_adaptive_frame_field_flag
Definition: h264_ps.h:62
int ff_vdpau_common_init(AVCodecContext *avctx, VdpDecoderProfile profile, int level)
Definition: vdpau.c:122
int poc_type
pic_order_cnt_type
Definition: h264_ps.h:50
int constrained_intra_pred
constrained_intra_pred_flag
Definition: h264_ps.h:121
#define AVERROR(e)
Definition: error.h:43
void * hwaccel_picture_private
hardware accelerator private data
Definition: h264dec.h:142
#define FF_PROFILE_H264_HIGH_422
Definition: avcodec.h:3293
#define FF_PROFILE_H264_HIGH
Definition: avcodec.h:3289
int weighted_pred
weighted_pred_flag
Definition: h264_ps.h:115
#define PICT_TOP_FIELD
Definition: mpegutils.h:37
int frame_num
frame_num (raw frame_num from slice header)
Definition: h264dec.h:149
int residual_color_transform_flag
residual_colour_transform_flag
Definition: h264_ps.h:99
int delta_pic_order_always_zero_flag
Definition: h264_ps.h:52
uint8_t scaling_matrix8[6][64]
Definition: h264_ps.h:125
int ref_frame_count
num_ref_frames
Definition: h264_ps.h:56
const char * name
Name of the hardware accelerated codec.
Definition: avcodec.h:3853
int reference
Definition: h264dec.h:160
int32_t
static int vdpau_h264_end_frame(AVCodecContext *avctx)
Definition: vdpau_h264.c:202
static int vdpau_h264_init(AVCodecContext *avctx)
Definition: vdpau_h264.c:218
int level
level
Definition: avcodec.h:3344
static void vdpau_h264_set_reference_frames(AVCodecContext *avctx)
Definition: vdpau_h264.c:70
int init_qp
pic_init_qp_minus26 + 26
Definition: h264_ps.h:117
H.264 / AVC / MPEG-4 part10 codec.
H264SliceContext * slice_ctx
Definition: h264dec.h:350
int direct_8x8_inference_flag
Definition: h264_ps.h:63
int pic_order_present
pic_order_present_flag
Definition: h264_ps.h:111
AVCodecContext * avctx
Definition: h264dec.h:339
Libavcodec external API header.
static const uint8_t start_code_prefix[3]
Definition: vdpau_h264.c:180
H264Picture * short_ref[32]
Definition: h264dec.h:461
int field_poc[2]
top/bottom POC
Definition: h264dec.h:147
main external API structure.
Definition: avcodec.h:1743
#define H264_RF_COUNT
HW acceleration through VDPAU, Picture.data[3] contains a VdpVideoSurface.
Definition: pixfmt.h:209
H264Picture * cur_pic_ptr
Definition: h264dec.h:346
const SPS * sps
Definition: h264_ps.h:145
int log2_max_poc_lsb
log2_max_pic_order_cnt_lsb_minus4
Definition: h264_ps.h:51
mfxU16 profile
Definition: qsvenc.c:44
int transform_8x8_mode
transform_8x8_mode_flag
Definition: h264_ps.h:123
uint8_t level
Definition: svq3.c:207
int pic_id
pic_num (short -> no wrap version of pic_num, pic_num & max_pic_num; long -> long_pic_num) ...
Definition: h264dec.h:152
common internal api header.
int ff_vdpau_add_buffer(struct vdpau_picture_context *pic_ctx, const uint8_t *buf, uint32_t size)
Definition: vdpau.c:391
int log2_max_frame_num
log2_max_frame_num_minus4 + 4
Definition: h264_ps.h:49
H264ParamSets ps
Definition: h264dec.h:454
int ff_vdpau_common_end_frame(AVCodecContext *avctx, AVFrame *frame, struct vdpau_picture_context *pic_ctx)
Definition: vdpau.c:324
static int vdpau_h264_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
Definition: vdpau_h264.c:182
#define HWACCEL_CAP_ASYNC_SAFE
Definition: hwaccel.h:22
void * priv_data
Definition: avcodec.h:1785
#define PICT_FRAME
Definition: mpegutils.h:39
union VDPAUPictureInfo info
VDPAU picture information.
#define FF_PROFILE_H264_CONSTRAINED_BASELINE
Definition: avcodec.h:3286
#define FF_PROFILE_H264_HIGH_10
Definition: avcodec.h:3290
int nal_ref_idc
Definition: h264dec.h:440
GLuint buffer
Definition: opengl_enc.c:102
static uintptr_t ff_vdpau_get_surface_id(AVFrame *pic)
Extract VdpVideoSurface from an AVFrame.
int short_ref_count
number of actual short term references
Definition: h264dec.h:477