summaryrefslogtreecommitdiffstats
path: root/libavcodec/vdpau.c
blob: d8a35eeb3b54345205ac4b0382599ffb3cf06a6e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
/*
 * Video Decode and Presentation API for UNIX (VDPAU) is used for
 * HW decode acceleration for MPEG-1/2, MPEG-4 ASP, H.264 and VC-1.
 *
 * Copyright (c) 2008 NVIDIA
 *
 * This file is part of Libav.
 *
 * Libav is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * Libav is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with Libav; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <limits.h>
#include "avcodec.h"
#include "h264.h"
#include "vc1.h"

#undef NDEBUG
#include <assert.h>

#include "vdpau.h"
#include "vdpau_internal.h"

/**
 * @addtogroup VDPAU_Decoding
 *
 * @{
 */

int ff_vdpau_common_start_frame(Picture *pic,
                                av_unused const uint8_t *buffer,
                                av_unused uint32_t size)
{
    struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;

    pic_ctx->bitstream_buffers_allocated = 0;
    pic_ctx->bitstream_buffers_used      = 0;
    pic_ctx->bitstream_buffers           = NULL;
    return 0;
}

#if CONFIG_H263_VDPAU_HWACCEL  || CONFIG_MPEG1_VDPAU_HWACCEL || \
    CONFIG_MPEG2_VDPAU_HWACCEL || CONFIG_MPEG4_VDPAU_HWACCEL || \
    CONFIG_VC1_VDPAU_HWACCEL   || CONFIG_WMV3_VDPAU_HWACCEL
int ff_vdpau_mpeg_end_frame(AVCodecContext *avctx)
{
    AVVDPAUContext *hwctx = avctx->hwaccel_context;
    MpegEncContext *s = avctx->priv_data;
    Picture *pic = s->current_picture_ptr;
    struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
    VdpVideoSurface surf = ff_vdpau_get_surface_id(pic);

    hwctx->render(hwctx->decoder, surf, (void *)&pic_ctx->info,
                  pic_ctx->bitstream_buffers_used, pic_ctx->bitstream_buffers);

    ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
    av_freep(&pic_ctx->bitstream_buffers);

    return 0;
}
#endif

int ff_vdpau_add_buffer(Picture *pic, const uint8_t *buf, uint32_t size)
{
    struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
    VdpBitstreamBuffer *buffers = pic_ctx->bitstream_buffers;

    buffers = av_fast_realloc(buffers, &pic_ctx->bitstream_buffers_allocated,
                              (pic_ctx->bitstream_buffers_used + 1) * sizeof(*buffers));
    if (!buffers)
        return AVERROR(ENOMEM);

    pic_ctx->bitstream_buffers = buffers;
    buffers += pic_ctx->bitstream_buffers_used++;

    buffers->struct_version  = VDP_BITSTREAM_BUFFER_VERSION;
    buffers->bitstream       = buf;
    buffers->bitstream_bytes = size;
    return 0;
}

int av_vdpau_get_profile(AVCodecContext *avctx, VdpDecoderProfile *profile)
{
#define PROFILE(prof)       \
do {                        \
    *profile = prof;        \
    return 0;               \
} while (0)

    switch (avctx->codec_id) {
    case AV_CODEC_ID_MPEG1VIDEO:               PROFILE(VDP_DECODER_PROFILE_MPEG1);
    case AV_CODEC_ID_MPEG2VIDEO:
        switch (avctx->profile) {
        case FF_PROFILE_MPEG2_MAIN:            PROFILE(VDP_DECODER_PROFILE_MPEG2_MAIN);
        case FF_PROFILE_MPEG2_SIMPLE:          PROFILE(VDP_DECODER_PROFILE_MPEG2_SIMPLE);
        default:                               return AVERROR(EINVAL);
        }
    case AV_CODEC_ID_H263:                     PROFILE(VDP_DECODER_PROFILE_MPEG4_PART2_ASP);
    case AV_CODEC_ID_MPEG4:
        switch (avctx->profile) {
        case FF_PROFILE_MPEG4_SIMPLE:          PROFILE(VDP_DECODER_PROFILE_MPEG4_PART2_SP);
        case FF_PROFILE_MPEG4_ADVANCED_SIMPLE: PROFILE(VDP_DECODER_PROFILE_MPEG4_PART2_ASP);
        default:                               return AVERROR(EINVAL);
        }
    case AV_CODEC_ID_H264:
        switch (avctx->profile) {
        case FF_PROFILE_H264_CONSTRAINED_BASELINE:
        case FF_PROFILE_H264_BASELINE:         PROFILE(VDP_DECODER_PROFILE_H264_BASELINE);
        case FF_PROFILE_H264_MAIN:             PROFILE(VDP_DECODER_PROFILE_H264_MAIN);
        case FF_PROFILE_H264_HIGH:             PROFILE(VDP_DECODER_PROFILE_H264_HIGH);
        default:                               return AVERROR(EINVAL);
        }
    case AV_CODEC_ID_WMV3:
    case AV_CODEC_ID_VC1:
        switch (avctx->profile) {
        case FF_PROFILE_VC1_SIMPLE:            PROFILE(VDP_DECODER_PROFILE_VC1_SIMPLE);
        case FF_PROFILE_VC1_MAIN:              PROFILE(VDP_DECODER_PROFILE_VC1_MAIN);
        case FF_PROFILE_VC1_ADVANCED:          PROFILE(VDP_DECODER_PROFILE_VC1_ADVANCED);
        default:                               return AVERROR(EINVAL);
        }
    }
    return AVERROR(EINVAL);
}

AVVDPAUContext *av_vdpau_alloc_context(void)
{
    return av_mallocz(sizeof(AVVDPAUContext));
}

/* @}*/
OpenPOWER on IntegriCloud