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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6148 | serge | 1 | /* |
| 2 | * MPEG-4 Part 10 / AVC / H.264 HW decode acceleration through VDPAU |
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| 3 | * |
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| 4 | * Copyright (c) 2008 NVIDIA |
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| 5 | * Copyright (c) 2013 Rémi Denis-Courmont |
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| 6 | * |
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| 7 | * This file is part of FFmpeg. |
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| 8 | * |
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| 9 | * FFmpeg is free software; you can redistribute it and/or |
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| 10 | * modify it under the terms of the GNU Lesser General Public |
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| 11 | * License as published by the Free Software Foundation; either |
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| 12 | * version 2.1 of the License, or (at your option) any later version. |
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| 13 | * |
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| 14 | * FFmpeg is distributed in the hope that it will be useful, |
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 17 | * Lesser General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU Lesser General Public |
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| 20 | * License along with FFmpeg; if not, write to the Free Software Foundation, |
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| 21 | * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 22 | */ |
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| 23 | |||
| 24 | #include |
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| 25 | |||
| 26 | #include "avcodec.h" |
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| 27 | #include "h264.h" |
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| 28 | #include "vdpau.h" |
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| 29 | #include "vdpau_internal.h" |
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| 30 | |||
| 31 | static int32_t h264_foc(int foc) |
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| 32 | { |
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| 33 | if (foc == INT_MAX) |
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| 34 | foc = 0; |
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| 35 | return foc; |
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| 36 | } |
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| 37 | |||
| 38 | static void vdpau_h264_clear_rf(VdpReferenceFrameH264 *rf) |
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| 39 | { |
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| 40 | rf->surface = VDP_INVALID_HANDLE; |
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| 41 | rf->is_long_term = VDP_FALSE; |
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| 42 | rf->top_is_reference = VDP_FALSE; |
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| 43 | rf->bottom_is_reference = VDP_FALSE; |
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| 44 | rf->field_order_cnt[0] = 0; |
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| 45 | rf->field_order_cnt[1] = 0; |
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| 46 | rf->frame_idx = 0; |
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| 47 | } |
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| 48 | |||
| 49 | static void vdpau_h264_set_rf(VdpReferenceFrameH264 *rf, Picture *pic, |
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| 50 | int pic_structure) |
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| 51 | { |
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| 52 | VdpVideoSurface surface = ff_vdpau_get_surface_id(pic); |
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| 53 | |||
| 54 | if (pic_structure == 0) |
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| 55 | pic_structure = pic->reference; |
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| 56 | |||
| 57 | rf->surface = surface; |
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| 58 | rf->is_long_term = pic->reference && pic->long_ref; |
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| 59 | rf->top_is_reference = (pic_structure & PICT_TOP_FIELD) != 0; |
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| 60 | rf->bottom_is_reference = (pic_structure & PICT_BOTTOM_FIELD) != 0; |
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| 61 | rf->field_order_cnt[0] = h264_foc(pic->field_poc[0]); |
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| 62 | rf->field_order_cnt[1] = h264_foc(pic->field_poc[1]); |
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| 63 | rf->frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num; |
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| 64 | } |
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| 65 | |||
| 66 | static void vdpau_h264_set_reference_frames(AVCodecContext *avctx) |
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| 67 | { |
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| 68 | H264Context * const h = avctx->priv_data; |
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| 69 | struct vdpau_picture_context *pic_ctx = h->cur_pic_ptr->hwaccel_picture_private; |
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| 70 | VdpPictureInfoH264 *info = &pic_ctx->info.h264; |
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| 71 | int list; |
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| 72 | |||
| 73 | VdpReferenceFrameH264 *rf = &info->referenceFrames[0]; |
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| 74 | #define H264_RF_COUNT FF_ARRAY_ELEMS(info->referenceFrames) |
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| 75 | |||
| 76 | for (list = 0; list < 2; ++list) { |
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| 77 | Picture **lp = list ? h->long_ref : h->short_ref; |
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| 78 | int i, ls = list ? 16 : h->short_ref_count; |
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| 79 | |||
| 80 | for (i = 0; i < ls; ++i) { |
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| 81 | Picture *pic = lp[i]; |
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| 82 | VdpReferenceFrameH264 *rf2; |
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| 83 | VdpVideoSurface surface_ref; |
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| 84 | int pic_frame_idx; |
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| 85 | |||
| 86 | if (!pic || !pic->reference) |
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| 87 | continue; |
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| 88 | pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num; |
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| 89 | surface_ref = ff_vdpau_get_surface_id(pic); |
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| 90 | |||
| 91 | rf2 = &info->referenceFrames[0]; |
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| 92 | while (rf2 != rf) { |
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| 93 | if ((rf2->surface == surface_ref) && |
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| 94 | (rf2->is_long_term == pic->long_ref) && |
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| 95 | (rf2->frame_idx == pic_frame_idx)) |
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| 96 | break; |
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| 97 | ++rf2; |
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| 98 | } |
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| 99 | if (rf2 != rf) { |
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| 100 | rf2->top_is_reference |= (pic->reference & PICT_TOP_FIELD) ? VDP_TRUE : VDP_FALSE; |
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| 101 | rf2->bottom_is_reference |= (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE; |
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| 102 | continue; |
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| 103 | } |
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| 104 | |||
| 105 | if (rf >= &info->referenceFrames[H264_RF_COUNT]) |
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| 106 | continue; |
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| 107 | |||
| 108 | vdpau_h264_set_rf(rf, pic, pic->reference); |
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| 109 | ++rf; |
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| 110 | } |
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| 111 | } |
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| 112 | |||
| 113 | for (; rf < &info->referenceFrames[H264_RF_COUNT]; ++rf) |
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| 114 | vdpau_h264_clear_rf(rf); |
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| 115 | } |
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| 116 | |||
| 117 | static int vdpau_h264_start_frame(AVCodecContext *avctx, |
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| 118 | const uint8_t *buffer, uint32_t size) |
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| 119 | { |
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| 120 | H264Context * const h = avctx->priv_data; |
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| 121 | Picture *pic = h->cur_pic_ptr; |
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| 122 | struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private; |
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| 123 | VdpPictureInfoH264 *info = &pic_ctx->info.h264; |
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| 124 | |||
| 125 | /* init VdpPictureInfoH264 */ |
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| 126 | info->slice_count = 0; |
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| 127 | info->field_order_cnt[0] = h264_foc(pic->field_poc[0]); |
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| 128 | info->field_order_cnt[1] = h264_foc(pic->field_poc[1]); |
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| 129 | info->is_reference = h->nal_ref_idc != 0; |
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| 130 | info->frame_num = h->frame_num; |
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| 131 | info->field_pic_flag = h->picture_structure != PICT_FRAME; |
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| 132 | info->bottom_field_flag = h->picture_structure == PICT_BOTTOM_FIELD; |
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| 133 | info->num_ref_frames = h->sps.ref_frame_count; |
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| 134 | info->mb_adaptive_frame_field_flag = h->sps.mb_aff && !info->field_pic_flag; |
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| 135 | info->constrained_intra_pred_flag = h->pps.constrained_intra_pred; |
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| 136 | info->weighted_pred_flag = h->pps.weighted_pred; |
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| 137 | info->weighted_bipred_idc = h->pps.weighted_bipred_idc; |
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| 138 | info->frame_mbs_only_flag = h->sps.frame_mbs_only_flag; |
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| 139 | info->transform_8x8_mode_flag = h->pps.transform_8x8_mode; |
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| 140 | info->chroma_qp_index_offset = h->pps.chroma_qp_index_offset[0]; |
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| 141 | info->second_chroma_qp_index_offset = h->pps.chroma_qp_index_offset[1]; |
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| 142 | info->pic_init_qp_minus26 = h->pps.init_qp - 26; |
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| 143 | info->num_ref_idx_l0_active_minus1 = h->pps.ref_count[0] - 1; |
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| 144 | info->num_ref_idx_l1_active_minus1 = h->pps.ref_count[1] - 1; |
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| 145 | info->log2_max_frame_num_minus4 = h->sps.log2_max_frame_num - 4; |
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| 146 | info->pic_order_cnt_type = h->sps.poc_type; |
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| 147 | info->log2_max_pic_order_cnt_lsb_minus4 = h->sps.poc_type ? 0 : h->sps.log2_max_poc_lsb - 4; |
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| 148 | info->delta_pic_order_always_zero_flag = h->sps.delta_pic_order_always_zero_flag; |
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| 149 | info->direct_8x8_inference_flag = h->sps.direct_8x8_inference_flag; |
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| 150 | info->entropy_coding_mode_flag = h->pps.cabac; |
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| 151 | info->pic_order_present_flag = h->pps.pic_order_present; |
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| 152 | info->deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present; |
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| 153 | info->redundant_pic_cnt_present_flag = h->pps.redundant_pic_cnt_present; |
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| 154 | |||
| 155 | memcpy(info->scaling_lists_4x4, h->pps.scaling_matrix4, |
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| 156 | sizeof(info->scaling_lists_4x4)); |
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| 157 | memcpy(info->scaling_lists_8x8[0], h->pps.scaling_matrix8[0], |
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| 158 | sizeof(info->scaling_lists_8x8[0])); |
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| 159 | memcpy(info->scaling_lists_8x8[1], h->pps.scaling_matrix8[3], |
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| 160 | sizeof(info->scaling_lists_8x8[1])); |
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| 161 | |||
| 162 | vdpau_h264_set_reference_frames(avctx); |
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| 163 | |||
| 164 | return ff_vdpau_common_start_frame(pic, buffer, size); |
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| 165 | } |
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| 166 | |||
| 167 | static const uint8_t start_code_prefix[3] = { 0x00, 0x00, 0x01 }; |
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| 168 | |||
| 169 | static int vdpau_h264_decode_slice(AVCodecContext *avctx, |
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| 170 | const uint8_t *buffer, uint32_t size) |
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| 171 | { |
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| 172 | H264Context *h = avctx->priv_data; |
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| 173 | Picture *pic = h->cur_pic_ptr; |
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| 174 | struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private; |
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| 175 | int val; |
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| 176 | |||
| 177 | val = ff_vdpau_add_buffer(pic, start_code_prefix, 3); |
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| 178 | if (val) |
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| 179 | return val; |
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| 180 | |||
| 181 | val = ff_vdpau_add_buffer(pic, buffer, size); |
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| 182 | if (val) |
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| 183 | return val; |
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| 184 | |||
| 185 | pic_ctx->info.h264.slice_count++; |
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| 186 | return 0; |
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| 187 | } |
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| 188 | |||
| 189 | static int vdpau_h264_end_frame(AVCodecContext *avctx) |
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| 190 | { |
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| 191 | int res = 0; |
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| 192 | AVVDPAUContext *hwctx = avctx->hwaccel_context; |
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| 193 | H264Context *h = avctx->priv_data; |
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| 194 | Picture *pic = h->cur_pic_ptr; |
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| 195 | struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private; |
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| 196 | VdpVideoSurface surf = ff_vdpau_get_surface_id(pic); |
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| 197 | |||
| 198 | if (!hwctx->render) { |
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| 199 | res = hwctx->render2(avctx, &pic->f, (void *)&pic_ctx->info, |
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| 200 | pic_ctx->bitstream_buffers_used, pic_ctx->bitstream_buffers); |
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| 201 | } else |
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| 202 | hwctx->render(hwctx->decoder, surf, (void *)&pic_ctx->info, |
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| 203 | pic_ctx->bitstream_buffers_used, pic_ctx->bitstream_buffers); |
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| 204 | |||
| 205 | ff_h264_draw_horiz_band(h, 0, h->avctx->height); |
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| 206 | av_freep(&pic_ctx->bitstream_buffers); |
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| 207 | |||
| 208 | return res; |
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| 209 | } |
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| 210 | |||
| 211 | AVHWAccel ff_h264_vdpau_hwaccel = { |
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| 212 | .name = "h264_vdpau", |
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| 213 | .type = AVMEDIA_TYPE_VIDEO, |
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| 214 | .id = AV_CODEC_ID_H264, |
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| 215 | .pix_fmt = AV_PIX_FMT_VDPAU, |
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| 216 | .start_frame = vdpau_h264_start_frame, |
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| 217 | .end_frame = vdpau_h264_end_frame, |
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| 218 | .decode_slice = vdpau_h264_decode_slice, |
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| 219 | .priv_data_size = sizeof(struct vdpau_picture_context), |
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| 220 | }; |