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vdpau_mpeg12.c
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1 /*
2  * MPEG-1/2 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 "hwaccel.h"
28 #include "mpegvideo.h"
29 #include "vdpau.h"
30 #include "vdpau_internal.h"
31 
33  const uint8_t *buffer, uint32_t size)
34 {
35  MpegEncContext * const s = avctx->priv_data;
36  Picture *pic = s->current_picture_ptr;
37  struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
38  VdpPictureInfoMPEG1Or2 *info = &pic_ctx->info.mpeg;
39  VdpVideoSurface ref;
40  int i;
41 
42  /* fill VdpPictureInfoMPEG1Or2 struct */
43  info->forward_reference = VDP_INVALID_HANDLE;
44  info->backward_reference = VDP_INVALID_HANDLE;
45 
46  switch (s->pict_type) {
47  case AV_PICTURE_TYPE_B:
49  assert(ref != VDP_INVALID_HANDLE);
50  info->backward_reference = ref;
51  /* fall through to forward prediction */
52  case AV_PICTURE_TYPE_P:
54  info->forward_reference = ref;
55  }
56 
57  info->slice_count = 0;
58  info->picture_structure = s->picture_structure;
59  info->picture_coding_type = s->pict_type;
60  info->intra_dc_precision = s->intra_dc_precision;
61  info->frame_pred_frame_dct = s->frame_pred_frame_dct;
62  info->concealment_motion_vectors = s->concealment_motion_vectors;
63  info->intra_vlc_format = s->intra_vlc_format;
64  info->alternate_scan = s->alternate_scan;
65  info->q_scale_type = s->q_scale_type;
66  info->top_field_first = s->top_field_first;
67  // Both for MPEG-1 only, zero for MPEG-2:
68  info->full_pel_forward_vector = s->full_pel[0];
69  info->full_pel_backward_vector = s->full_pel[1];
70  // For MPEG-1 fill both horizontal & vertical:
71  info->f_code[0][0] = s->mpeg_f_code[0][0];
72  info->f_code[0][1] = s->mpeg_f_code[0][1];
73  info->f_code[1][0] = s->mpeg_f_code[1][0];
74  info->f_code[1][1] = s->mpeg_f_code[1][1];
75  for (i = 0; i < 64; ++i) {
76  info->intra_quantizer_matrix[i] = s->intra_matrix[i];
77  info->non_intra_quantizer_matrix[i] = s->inter_matrix[i];
78  }
79 
80  return ff_vdpau_common_start_frame(pic_ctx, buffer, size);
81 }
82 
84  const uint8_t *buffer, uint32_t size)
85 {
86  MpegEncContext * const s = avctx->priv_data;
87  Picture *pic = s->current_picture_ptr;
88  struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
89  int val;
90 
91  val = ff_vdpau_add_buffer(pic_ctx, buffer, size);
92  if (val < 0)
93  return val;
94 
95  pic_ctx->info.mpeg.slice_count++;
96  return 0;
97 }
98 
99 #if CONFIG_MPEG1_VDPAU_HWACCEL
100 static int vdpau_mpeg1_init(AVCodecContext *avctx)
101 {
102  return ff_vdpau_common_init(avctx, VDP_DECODER_PROFILE_MPEG1,
103  VDP_DECODER_LEVEL_MPEG1_NA);
104 }
105 
106 AVHWAccel ff_mpeg1_vdpau_hwaccel = {
107  .name = "mpeg1_vdpau",
108  .type = AVMEDIA_TYPE_VIDEO,
110  .pix_fmt = AV_PIX_FMT_VDPAU,
111  .start_frame = vdpau_mpeg_start_frame,
112  .end_frame = ff_vdpau_mpeg_end_frame,
113  .decode_slice = vdpau_mpeg_decode_slice,
114  .frame_priv_data_size = sizeof(struct vdpau_picture_context),
115  .init = vdpau_mpeg1_init,
116  .uninit = ff_vdpau_common_uninit,
117  .priv_data_size = sizeof(VDPAUContext),
118  .caps_internal = HWACCEL_CAP_ASYNC_SAFE,
119 };
120 #endif
121 
122 #if CONFIG_MPEG2_VDPAU_HWACCEL
123 static int vdpau_mpeg2_init(AVCodecContext *avctx)
124 {
125  VdpDecoderProfile profile;
126 
127  switch (avctx->profile) {
129  profile = VDP_DECODER_PROFILE_MPEG2_MAIN;
130  break;
132  profile = VDP_DECODER_PROFILE_MPEG2_SIMPLE;
133  break;
134  default:
135  return AVERROR(EINVAL);
136  }
137 
138  return ff_vdpau_common_init(avctx, profile, VDP_DECODER_LEVEL_MPEG2_HL);
139 }
140 
141 AVHWAccel ff_mpeg2_vdpau_hwaccel = {
142  .name = "mpeg2_vdpau",
143  .type = AVMEDIA_TYPE_VIDEO,
145  .pix_fmt = AV_PIX_FMT_VDPAU,
146  .start_frame = vdpau_mpeg_start_frame,
147  .end_frame = ff_vdpau_mpeg_end_frame,
148  .decode_slice = vdpau_mpeg_decode_slice,
149  .frame_priv_data_size = sizeof(struct vdpau_picture_context),
150  .init = vdpau_mpeg2_init,
151  .uninit = ff_vdpau_common_uninit,
152  .priv_data_size = sizeof(VDPAUContext),
153  .caps_internal = HWACCEL_CAP_ASYNC_SAFE,
154 };
155 #endif
const char const char void * val
Definition: avisynth_c.h:771
const char * s
Definition: avisynth_c.h:768
#define FF_PROFILE_MPEG2_MAIN
Definition: avcodec.h:3282
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
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:333
static int vdpau_mpeg_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
Definition: vdpau_mpeg12.c:83
mpegvideo header.
Public libavcodec VDPAU header.
int profile
profile
Definition: avcodec.h:3249
int ff_vdpau_common_uninit(AVCodecContext *avctx)
Definition: vdpau.c:295
uint8_t
int full_pel[2]
Definition: mpegvideo.h:480
int intra_dc_precision
Definition: mpegvideo.h:461
ptrdiff_t size
Definition: opengl_enc.c:101
int ff_vdpau_common_init(AVCodecContext *avctx, VdpDecoderProfile profile, int level)
Definition: vdpau.c:122
#define AVERROR(e)
Definition: error.h:43
VdpPictureInfoMPEG1Or2 mpeg
int intra_vlc_format
Definition: mpegvideo.h:467
int top_field_first
Definition: mpegvideo.h:463
const char * name
Name of the hardware accelerated codec.
Definition: avcodec.h:3856
Picture * current_picture_ptr
pointer to the current picture
Definition: mpegvideo.h:181
Picture.
Definition: mpegpicture.h:45
int alternate_scan
Definition: mpegvideo.h:468
void * hwaccel_picture_private
Hardware accelerator private data.
Definition: mpegpicture.h:77
int mpeg_f_code[2][2]
Definition: mpegvideo.h:455
preferred ID for MPEG-1/2 video decoding
Definition: avcodec.h:219
int frame_pred_frame_dct
Definition: mpegvideo.h:462
uint16_t inter_matrix[64]
Definition: mpegvideo.h:302
int concealment_motion_vectors
Definition: mpegvideo.h:464
Libavcodec external API header.
int ff_vdpau_mpeg_end_frame(AVCodecContext *avctx)
main external API structure.
Definition: avcodec.h:1746
struct AVFrame * f
Definition: mpegpicture.h:46
HW acceleration through VDPAU, Picture.data[3] contains a VdpVideoSurface.
Definition: pixfmt.h:209
int pict_type
AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
Definition: mpegvideo.h:209
mfxU16 profile
Definition: qsvenc.c:44
MpegEncContext.
Definition: mpegvideo.h:78
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:107
int ff_vdpau_add_buffer(struct vdpau_picture_context *pic_ctx, const uint8_t *buf, uint32_t size)
Definition: vdpau.c:410
Picture last_picture
copy of the previous picture structure.
Definition: mpegvideo.h:159
Bi-dir predicted.
Definition: avutil.h:276
#define HWACCEL_CAP_ASYNC_SAFE
Definition: hwaccel.h:22
void * priv_data
Definition: avcodec.h:1788
int picture_structure
Definition: mpegvideo.h:458
union VDPAUPictureInfo info
VDPAU picture information.
#define FF_PROFILE_MPEG2_SIMPLE
Definition: avcodec.h:3283
Picture next_picture
copy of the next picture structure.
Definition: mpegvideo.h:165
uint16_t intra_matrix[64]
matrix transmitted in the bitstream
Definition: mpegvideo.h:300
static int vdpau_mpeg_start_frame(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
Definition: vdpau_mpeg12.c:32
Predicted.
Definition: avutil.h:275
GLuint buffer
Definition: opengl_enc.c:102
static uintptr_t ff_vdpau_get_surface_id(AVFrame *pic)
Extract VdpVideoSurface from an AVFrame.