vp9: assert -> av_assert and fix associated compile error.
[ffmpeg.git] / libavcodec / vdpau_mpeg4.c
1 /*
2  * MPEG-4 Part 2 / H.263 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 "mpeg4video.h"
29 #include "vdpau.h"
30 #include "vdpau_internal.h"
31
32 static int vdpau_mpeg4_start_frame(AVCodecContext *avctx,
33                                    const uint8_t *buffer, uint32_t size)
34 {
35     Mpeg4DecContext *ctx = avctx->priv_data;
36     MpegEncContext * const s = &ctx->m;
37     Picture *pic             = s->current_picture_ptr;
38     struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
39     VdpPictureInfoMPEG4Part2 *info = &pic_ctx->info.mpeg4;
40     VdpVideoSurface ref;
41     int i;
42
43     /* fill VdpPictureInfoMPEG4Part2 struct */
44     info->forward_reference  = VDP_INVALID_HANDLE;
45     info->backward_reference = VDP_INVALID_HANDLE;
46     info->vop_coding_type    = 0;
47
48     switch (s->pict_type) {
49     case AV_PICTURE_TYPE_B:
50         ref = ff_vdpau_get_surface_id(s->next_picture.f);
51         assert(ref != VDP_INVALID_HANDLE);
52         info->backward_reference = ref;
53         info->vop_coding_type    = 2;
54         /* fall-through */
55     case AV_PICTURE_TYPE_P:
56         ref = ff_vdpau_get_surface_id(s->last_picture.f);
57         assert(ref != VDP_INVALID_HANDLE);
58         info->forward_reference  = ref;
59     }
60
61     info->trd[0]                            = s->pp_time;
62     info->trb[0]                            = s->pb_time;
63     info->trd[1]                            = s->pp_field_time >> 1;
64     info->trb[1]                            = s->pb_field_time >> 1;
65     info->vop_time_increment_resolution     = s->avctx->framerate.num;
66     info->vop_fcode_forward                 = s->f_code;
67     info->vop_fcode_backward                = s->b_code;
68     info->resync_marker_disable             = !ctx->resync_marker;
69     info->interlaced                        = !s->progressive_sequence;
70     info->quant_type                        = s->mpeg_quant;
71     info->quarter_sample                    = s->quarter_sample;
72     info->short_video_header                = avctx->codec->id == AV_CODEC_ID_H263;
73     info->rounding_control                  = s->no_rounding;
74     info->alternate_vertical_scan_flag      = s->alternate_scan;
75     info->top_field_first                   = s->top_field_first;
76     for (i = 0; i < 64; ++i) {
77         info->intra_quantizer_matrix[i]     = s->intra_matrix[i];
78         info->non_intra_quantizer_matrix[i] = s->inter_matrix[i];
79     }
80
81     ff_vdpau_common_start_frame(pic_ctx, buffer, size);
82     return ff_vdpau_add_buffer(pic_ctx, buffer, size);
83 }
84
85 static int vdpau_mpeg4_decode_slice(av_unused AVCodecContext *avctx,
86                                     av_unused const uint8_t *buffer,
87                                     av_unused uint32_t size)
88 {
89      return 0;
90 }
91
92 static int vdpau_mpeg4_init(AVCodecContext *avctx)
93 {
94     VdpDecoderProfile profile;
95
96     switch (avctx->profile) {
97     case FF_PROFILE_MPEG4_SIMPLE:
98         profile = VDP_DECODER_PROFILE_MPEG4_PART2_SP;
99         break;
100     // As any ASP decoder must be able to decode SP, this
101     // should be a safe fallback if profile is unknown/unspecified.
102     case FF_PROFILE_UNKNOWN:
103     case FF_PROFILE_MPEG4_ADVANCED_SIMPLE:
104         profile = VDP_DECODER_PROFILE_MPEG4_PART2_ASP;
105         break;
106     default:
107         return AVERROR(ENOTSUP);
108     }
109
110     return ff_vdpau_common_init(avctx, profile, avctx->level);
111 }
112
113 AVHWAccel ff_mpeg4_vdpau_hwaccel = {
114     .name           = "mpeg4_vdpau",
115     .type           = AVMEDIA_TYPE_VIDEO,
116     .id             = AV_CODEC_ID_MPEG4,
117     .pix_fmt        = AV_PIX_FMT_VDPAU,
118     .start_frame    = vdpau_mpeg4_start_frame,
119     .end_frame      = ff_vdpau_mpeg_end_frame,
120     .decode_slice   = vdpau_mpeg4_decode_slice,
121     .frame_priv_data_size = sizeof(struct vdpau_picture_context),
122     .init           = vdpau_mpeg4_init,
123     .uninit         = ff_vdpau_common_uninit,
124     .priv_data_size = sizeof(VDPAUContext),
125     .caps_internal  = HWACCEL_CAP_ASYNC_SAFE,
126 };