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2ba45a60 DM |
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 "vdpau.h" | |
28 | #include "vdpau_internal.h" | |
29 | ||
30 | static int vdpau_mpeg_start_frame(AVCodecContext *avctx, | |
31 | const uint8_t *buffer, uint32_t size) | |
32 | { | |
33 | MpegEncContext * const s = avctx->priv_data; | |
34 | Picture *pic = s->current_picture_ptr; | |
35 | struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private; | |
36 | VdpPictureInfoMPEG1Or2 *info = &pic_ctx->info.mpeg; | |
37 | VdpVideoSurface ref; | |
38 | int i; | |
39 | ||
40 | /* fill VdpPictureInfoMPEG1Or2 struct */ | |
41 | info->forward_reference = VDP_INVALID_HANDLE; | |
42 | info->backward_reference = VDP_INVALID_HANDLE; | |
43 | ||
44 | switch (s->pict_type) { | |
45 | case AV_PICTURE_TYPE_B: | |
46 | ref = ff_vdpau_get_surface_id(s->next_picture.f); | |
47 | assert(ref != VDP_INVALID_HANDLE); | |
48 | info->backward_reference = ref; | |
49 | /* fall through to forward prediction */ | |
50 | case AV_PICTURE_TYPE_P: | |
51 | ref = ff_vdpau_get_surface_id(s->last_picture.f); | |
52 | info->forward_reference = ref; | |
53 | } | |
54 | ||
55 | info->slice_count = 0; | |
56 | info->picture_structure = s->picture_structure; | |
57 | info->picture_coding_type = s->pict_type; | |
58 | info->intra_dc_precision = s->intra_dc_precision; | |
59 | info->frame_pred_frame_dct = s->frame_pred_frame_dct; | |
60 | info->concealment_motion_vectors = s->concealment_motion_vectors; | |
61 | info->intra_vlc_format = s->intra_vlc_format; | |
62 | info->alternate_scan = s->alternate_scan; | |
63 | info->q_scale_type = s->q_scale_type; | |
64 | info->top_field_first = s->top_field_first; | |
65 | // Both for MPEG-1 only, zero for MPEG-2: | |
66 | info->full_pel_forward_vector = s->full_pel[0]; | |
67 | info->full_pel_backward_vector = s->full_pel[1]; | |
68 | // For MPEG-1 fill both horizontal & vertical: | |
69 | info->f_code[0][0] = s->mpeg_f_code[0][0]; | |
70 | info->f_code[0][1] = s->mpeg_f_code[0][1]; | |
71 | info->f_code[1][0] = s->mpeg_f_code[1][0]; | |
72 | info->f_code[1][1] = s->mpeg_f_code[1][1]; | |
73 | for (i = 0; i < 64; ++i) { | |
74 | info->intra_quantizer_matrix[i] = s->intra_matrix[i]; | |
75 | info->non_intra_quantizer_matrix[i] = s->inter_matrix[i]; | |
76 | } | |
77 | ||
78 | return ff_vdpau_common_start_frame(pic_ctx, buffer, size); | |
79 | } | |
80 | ||
81 | static int vdpau_mpeg_decode_slice(AVCodecContext *avctx, | |
82 | const uint8_t *buffer, uint32_t size) | |
83 | { | |
84 | MpegEncContext * const s = avctx->priv_data; | |
85 | Picture *pic = s->current_picture_ptr; | |
86 | struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private; | |
87 | int val; | |
88 | ||
89 | val = ff_vdpau_add_buffer(pic_ctx, buffer, size); | |
90 | if (val < 0) | |
91 | return val; | |
92 | ||
93 | pic_ctx->info.mpeg.slice_count++; | |
94 | return 0; | |
95 | } | |
96 | ||
97 | #if CONFIG_MPEG1_VDPAU_HWACCEL | |
f6fa7814 DM |
98 | static int vdpau_mpeg1_init(AVCodecContext *avctx) |
99 | { | |
100 | return ff_vdpau_common_init(avctx, VDP_DECODER_PROFILE_MPEG1, | |
101 | VDP_DECODER_LEVEL_MPEG1_NA); | |
102 | } | |
103 | ||
2ba45a60 DM |
104 | AVHWAccel ff_mpeg1_vdpau_hwaccel = { |
105 | .name = "mpeg1_vdpau", | |
106 | .type = AVMEDIA_TYPE_VIDEO, | |
107 | .id = AV_CODEC_ID_MPEG1VIDEO, | |
108 | .pix_fmt = AV_PIX_FMT_VDPAU, | |
109 | .start_frame = vdpau_mpeg_start_frame, | |
110 | .end_frame = ff_vdpau_mpeg_end_frame, | |
111 | .decode_slice = vdpau_mpeg_decode_slice, | |
112 | .frame_priv_data_size = sizeof(struct vdpau_picture_context), | |
f6fa7814 DM |
113 | .init = vdpau_mpeg1_init, |
114 | .uninit = ff_vdpau_common_uninit, | |
115 | .priv_data_size = sizeof(VDPAUContext), | |
2ba45a60 DM |
116 | }; |
117 | #endif | |
118 | ||
119 | #if CONFIG_MPEG2_VDPAU_HWACCEL | |
f6fa7814 DM |
120 | static int vdpau_mpeg2_init(AVCodecContext *avctx) |
121 | { | |
122 | VdpDecoderProfile profile; | |
123 | ||
124 | switch (avctx->profile) { | |
125 | case FF_PROFILE_MPEG2_MAIN: | |
126 | profile = VDP_DECODER_PROFILE_MPEG2_MAIN; | |
127 | break; | |
128 | case FF_PROFILE_MPEG2_SIMPLE: | |
129 | profile = VDP_DECODER_PROFILE_MPEG2_SIMPLE; | |
130 | break; | |
131 | default: | |
132 | return AVERROR(EINVAL); | |
133 | } | |
134 | ||
135 | return ff_vdpau_common_init(avctx, profile, VDP_DECODER_LEVEL_MPEG2_HL); | |
136 | } | |
137 | ||
2ba45a60 DM |
138 | AVHWAccel ff_mpeg2_vdpau_hwaccel = { |
139 | .name = "mpeg2_vdpau", | |
140 | .type = AVMEDIA_TYPE_VIDEO, | |
141 | .id = AV_CODEC_ID_MPEG2VIDEO, | |
142 | .pix_fmt = AV_PIX_FMT_VDPAU, | |
143 | .start_frame = vdpau_mpeg_start_frame, | |
144 | .end_frame = ff_vdpau_mpeg_end_frame, | |
145 | .decode_slice = vdpau_mpeg_decode_slice, | |
146 | .frame_priv_data_size = sizeof(struct vdpau_picture_context), | |
f6fa7814 DM |
147 | .init = vdpau_mpeg2_init, |
148 | .uninit = ff_vdpau_common_uninit, | |
149 | .priv_data_size = sizeof(VDPAUContext), | |
2ba45a60 DM |
150 | }; |
151 | #endif |