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| Rev | Author | Line No. | Line |
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| 4349 | Serge | 1 | /* |
| 2 | * MPEG-1/2 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 "vdpau.h" |
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| 28 | #include "vdpau_internal.h" |
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| 29 | |||
| 30 | static int vdpau_mpeg_start_frame(AVCodecContext *avctx, |
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| 31 | const uint8_t *buffer, uint32_t size) |
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| 32 | { |
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| 33 | MpegEncContext * const s = avctx->priv_data; |
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| 34 | Picture *pic = s->current_picture_ptr; |
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| 35 | struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private; |
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| 36 | VdpPictureInfoMPEG1Or2 *info = &pic_ctx->info.mpeg; |
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| 37 | VdpVideoSurface ref; |
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| 38 | int i; |
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| 39 | |||
| 40 | /* fill VdpPictureInfoMPEG1Or2 struct */ |
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| 41 | info->forward_reference = VDP_INVALID_HANDLE; |
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| 42 | info->backward_reference = VDP_INVALID_HANDLE; |
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| 43 | |||
| 44 | switch (s->pict_type) { |
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| 45 | case AV_PICTURE_TYPE_B: |
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| 46 | ref = ff_vdpau_get_surface_id(&s->next_picture); |
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| 47 | assert(ref != VDP_INVALID_HANDLE); |
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| 48 | info->backward_reference = ref; |
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| 49 | /* fall through to forward prediction */ |
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| 50 | case AV_PICTURE_TYPE_P: |
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| 51 | ref = ff_vdpau_get_surface_id(&s->last_picture); |
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| 52 | info->forward_reference = ref; |
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| 53 | } |
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| 54 | |||
| 55 | info->slice_count = 0; |
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| 56 | info->picture_structure = s->picture_structure; |
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| 57 | info->picture_coding_type = s->pict_type; |
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| 58 | info->intra_dc_precision = s->intra_dc_precision; |
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| 59 | info->frame_pred_frame_dct = s->frame_pred_frame_dct; |
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| 60 | info->concealment_motion_vectors = s->concealment_motion_vectors; |
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| 61 | info->intra_vlc_format = s->intra_vlc_format; |
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| 62 | info->alternate_scan = s->alternate_scan; |
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| 63 | info->q_scale_type = s->q_scale_type; |
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| 64 | info->top_field_first = s->top_field_first; |
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| 65 | // Both for MPEG-1 only, zero for MPEG-2: |
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| 66 | info->full_pel_forward_vector = s->full_pel[0]; |
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| 67 | info->full_pel_backward_vector = s->full_pel[1]; |
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| 68 | // For MPEG-1 fill both horizontal & vertical: |
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| 69 | info->f_code[0][0] = s->mpeg_f_code[0][0]; |
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| 70 | info->f_code[0][1] = s->mpeg_f_code[0][1]; |
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| 71 | info->f_code[1][0] = s->mpeg_f_code[1][0]; |
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| 72 | info->f_code[1][1] = s->mpeg_f_code[1][1]; |
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| 73 | for (i = 0; i < 64; ++i) { |
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| 74 | info->intra_quantizer_matrix[i] = s->intra_matrix[i]; |
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| 75 | info->non_intra_quantizer_matrix[i] = s->inter_matrix[i]; |
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| 76 | } |
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| 77 | |||
| 78 | return ff_vdpau_common_start_frame(pic, buffer, size); |
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| 79 | } |
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| 80 | |||
| 81 | static int vdpau_mpeg_decode_slice(AVCodecContext *avctx, |
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| 82 | const uint8_t *buffer, uint32_t size) |
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| 83 | { |
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| 84 | MpegEncContext * const s = avctx->priv_data; |
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| 85 | Picture *pic = s->current_picture_ptr; |
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| 86 | struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private; |
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| 87 | int val; |
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| 88 | |||
| 89 | val = ff_vdpau_add_buffer(pic, buffer, size); |
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| 90 | if (val < 0) |
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| 91 | return val; |
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| 92 | |||
| 93 | pic_ctx->info.mpeg.slice_count++; |
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| 94 | return 0; |
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| 95 | } |
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| 96 | |||
| 97 | #if CONFIG_MPEG1_VDPAU_HWACCEL |
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| 98 | AVHWAccel ff_mpeg1_vdpau_hwaccel = { |
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| 99 | .name = "mpeg1_vdpau", |
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| 100 | .type = AVMEDIA_TYPE_VIDEO, |
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| 101 | .id = AV_CODEC_ID_MPEG1VIDEO, |
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| 102 | .pix_fmt = AV_PIX_FMT_VDPAU, |
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| 103 | .start_frame = vdpau_mpeg_start_frame, |
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| 104 | .end_frame = ff_vdpau_mpeg_end_frame, |
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| 105 | .decode_slice = vdpau_mpeg_decode_slice, |
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| 106 | .priv_data_size = sizeof(struct vdpau_picture_context), |
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| 107 | }; |
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| 108 | #endif |
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| 109 | |||
| 110 | #if CONFIG_MPEG2_VDPAU_HWACCEL |
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| 111 | AVHWAccel ff_mpeg2_vdpau_hwaccel = { |
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| 112 | .name = "mpeg2_vdpau", |
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| 113 | .type = AVMEDIA_TYPE_VIDEO, |
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| 114 | .id = AV_CODEC_ID_MPEG2VIDEO, |
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| 115 | .pix_fmt = AV_PIX_FMT_VDPAU, |
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| 116 | .start_frame = vdpau_mpeg_start_frame, |
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| 117 | .end_frame = ff_vdpau_mpeg_end_frame, |
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| 118 | .decode_slice = vdpau_mpeg_decode_slice, |
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| 119 | .priv_data_size = sizeof(struct vdpau_picture_context), |
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| 120 | }; |
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| 121 | #endif |