| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * MPEG-4 Part 2 / H.263 decode acceleration through VDPAU | ||
| 3 | * | ||
| 4 | * Copyright (c) 2008 NVIDIA | ||
| 5 | * Copyright (c) 2013 Rémi 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_internal.h" | ||
| 28 | #include "mpeg4videodec.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 | ✗ | int n = s->idsp.idct_permutation[i]; | |
| 78 | ✗ | info->intra_quantizer_matrix[i] = s->intra_matrix[n]; | |
| 79 | ✗ | info->non_intra_quantizer_matrix[i] = s->inter_matrix[n]; | |
| 80 | } | ||
| 81 | |||
| 82 | ✗ | ff_vdpau_common_start_frame(pic_ctx, buffer, size); | |
| 83 | ✗ | return ff_vdpau_add_buffer(pic_ctx, buffer, size); | |
| 84 | } | ||
| 85 | |||
| 86 | ✗ | static int vdpau_mpeg4_decode_slice(av_unused AVCodecContext *avctx, | |
| 87 | av_unused const uint8_t *buffer, | ||
| 88 | av_unused uint32_t size) | ||
| 89 | { | ||
| 90 | ✗ | return 0; | |
| 91 | } | ||
| 92 | |||
| 93 | ✗ | static int vdpau_mpeg4_init(AVCodecContext *avctx) | |
| 94 | { | ||
| 95 | VdpDecoderProfile profile; | ||
| 96 | |||
| 97 | ✗ | switch (avctx->profile) { | |
| 98 | ✗ | case AV_PROFILE_MPEG4_SIMPLE: | |
| 99 | ✗ | profile = VDP_DECODER_PROFILE_MPEG4_PART2_SP; | |
| 100 | ✗ | break; | |
| 101 | // As any ASP decoder must be able to decode SP, this | ||
| 102 | // should be a safe fallback if profile is unknown/unspecified. | ||
| 103 | ✗ | case AV_PROFILE_UNKNOWN: | |
| 104 | case AV_PROFILE_MPEG4_ADVANCED_SIMPLE: | ||
| 105 | ✗ | profile = VDP_DECODER_PROFILE_MPEG4_PART2_ASP; | |
| 106 | ✗ | break; | |
| 107 | ✗ | default: | |
| 108 | ✗ | return AVERROR(ENOTSUP); | |
| 109 | } | ||
| 110 | |||
| 111 | ✗ | return ff_vdpau_common_init(avctx, profile, avctx->level); | |
| 112 | } | ||
| 113 | |||
| 114 | const FFHWAccel ff_mpeg4_vdpau_hwaccel = { | ||
| 115 | .p.name = "mpeg4_vdpau", | ||
| 116 | .p.type = AVMEDIA_TYPE_VIDEO, | ||
| 117 | .p.id = AV_CODEC_ID_MPEG4, | ||
| 118 | .p.pix_fmt = AV_PIX_FMT_VDPAU, | ||
| 119 | .start_frame = vdpau_mpeg4_start_frame, | ||
| 120 | .end_frame = ff_vdpau_mpeg_end_frame, | ||
| 121 | .decode_slice = vdpau_mpeg4_decode_slice, | ||
| 122 | .frame_priv_data_size = sizeof(struct vdpau_picture_context), | ||
| 123 | .init = vdpau_mpeg4_init, | ||
| 124 | .uninit = ff_vdpau_common_uninit, | ||
| 125 | .frame_params = ff_vdpau_common_frame_params, | ||
| 126 | .priv_data_size = sizeof(VDPAUContext), | ||
| 127 | .caps_internal = HWACCEL_CAP_ASYNC_SAFE, | ||
| 128 | }; | ||
| 129 |