FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/vdpau_mpeg12.c
Date: 2021-09-23 20:34:37
Exec Total Coverage
Lines: 0 56 0.0%
Branches: 0 10 0.0%

Line Branch Exec Source
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 "hwconfig.h"
28 #include "mpegvideo.h"
29 #include "vdpau.h"
30 #include "vdpau_internal.h"
31
32 static int vdpau_mpeg_start_frame(AVCodecContext *avctx,
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:
48 ref = ff_vdpau_get_surface_id(s->next_picture.f);
49 assert(ref != VDP_INVALID_HANDLE);
50 info->backward_reference = ref;
51 /* fall through to forward prediction */
52 case AV_PICTURE_TYPE_P:
53 ref = ff_vdpau_get_surface_id(s->last_picture.f);
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
83 static int vdpau_mpeg_decode_slice(AVCodecContext *avctx,
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 const AVHWAccel ff_mpeg1_vdpau_hwaccel = {
107 .name = "mpeg1_vdpau",
108 .type = AVMEDIA_TYPE_VIDEO,
109 .id = AV_CODEC_ID_MPEG1VIDEO,
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) {
128 case FF_PROFILE_MPEG2_MAIN:
129 profile = VDP_DECODER_PROFILE_MPEG2_MAIN;
130 break;
131 case FF_PROFILE_MPEG2_SIMPLE:
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 const AVHWAccel ff_mpeg2_vdpau_hwaccel = {
142 .name = "mpeg2_vdpau",
143 .type = AVMEDIA_TYPE_VIDEO,
144 .id = AV_CODEC_ID_MPEG2VIDEO,
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 .frame_params = ff_vdpau_common_frame_params,
153 .priv_data_size = sizeof(VDPAUContext),
154 .caps_internal = HWACCEL_CAP_ASYNC_SAFE,
155 };
156 #endif
157