mirror of https://github.com/FFmpeg/FFmpeg.git
Signed-off-by: Diego Biurrun <diego@biurrun.de>pull/8/head
Rémi Denis-Courmont
12 years ago
committed by
Diego Biurrun
parent
44e065d56c
commit
aaf9d0e8f3
6 changed files with 124 additions and 1 deletions
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/*
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* MPEG-1/2 HW decode acceleration through VDPAU |
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* |
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* Copyright (c) 2008 NVIDIA |
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* Copyright (c) 2013 Rémi Denis-Courmont |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include <vdpau/vdpau.h> |
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#include "avcodec.h" |
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#include "vdpau.h" |
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#include "vdpau_internal.h" |
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static int vdpau_mpeg_start_frame(AVCodecContext *avctx, |
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const uint8_t *buffer, uint32_t size) |
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{ |
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MpegEncContext * const s = avctx->priv_data; |
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AVVDPAUContext *hwctx = avctx->hwaccel_context; |
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VdpPictureInfoMPEG1Or2 *info = &hwctx->info.mpeg; |
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VdpVideoSurface ref; |
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int i; |
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/* fill VdpPictureInfoMPEG1Or2 struct */ |
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info->forward_reference = VDP_INVALID_HANDLE; |
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info->backward_reference = VDP_INVALID_HANDLE; |
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switch (s->pict_type) { |
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case AV_PICTURE_TYPE_B: |
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ref = ff_vdpau_get_surface_id(&s->next_picture); |
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assert(ref != VDP_INVALID_HANDLE); |
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hwctx->info.mpeg.backward_reference = ref; |
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/* fall through to forward prediction */ |
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case AV_PICTURE_TYPE_P: |
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ref = ff_vdpau_get_surface_id(&s->last_picture); |
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hwctx->info.mpeg.forward_reference = ref; |
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} |
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info->slice_count = 0; |
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info->picture_structure = s->picture_structure; |
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info->picture_coding_type = s->pict_type; |
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info->intra_dc_precision = s->intra_dc_precision; |
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info->frame_pred_frame_dct = s->frame_pred_frame_dct; |
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info->concealment_motion_vectors = s->concealment_motion_vectors; |
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info->intra_vlc_format = s->intra_vlc_format; |
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info->alternate_scan = s->alternate_scan; |
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info->q_scale_type = s->q_scale_type; |
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info->top_field_first = s->top_field_first; |
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// Both for MPEG-1 only, zero for MPEG-2:
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info->full_pel_forward_vector = s->full_pel[0]; |
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info->full_pel_backward_vector = s->full_pel[1]; |
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// For MPEG-1 fill both horizontal & vertical:
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info->f_code[0][0] = s->mpeg_f_code[0][0]; |
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info->f_code[0][1] = s->mpeg_f_code[0][1]; |
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info->f_code[1][0] = s->mpeg_f_code[1][0]; |
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info->f_code[1][1] = s->mpeg_f_code[1][1]; |
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for (i = 0; i < 64; ++i) { |
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info->intra_quantizer_matrix[i] = s->intra_matrix[i]; |
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info->non_intra_quantizer_matrix[i] = s->inter_matrix[i]; |
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} |
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return ff_vdpau_common_start_frame(avctx, buffer, size); |
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} |
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static int vdpau_mpeg_decode_slice(AVCodecContext *avctx, |
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const uint8_t *buffer, uint32_t size) |
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{ |
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AVVDPAUContext *hwctx = avctx->hwaccel_context; |
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int val; |
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val = ff_vdpau_add_buffer(avctx, buffer, size); |
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if (val < 0) |
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return val; |
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hwctx->info.mpeg.slice_count++; |
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return 0; |
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} |
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#if CONFIG_MPEG1_VDPAU_HWACCEL |
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AVHWAccel ff_mpeg1_vdpau_hwaccel = { |
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.name = "mpeg1_vdpau", |
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.type = AVMEDIA_TYPE_VIDEO, |
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.id = AV_CODEC_ID_MPEG1VIDEO, |
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.pix_fmt = AV_PIX_FMT_VDPAU, |
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.start_frame = vdpau_mpeg_start_frame, |
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.end_frame = ff_vdpau_common_end_frame, |
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.decode_slice = vdpau_mpeg_decode_slice, |
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}; |
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#endif |
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#if CONFIG_MPEG2_VDPAU_HWACCEL |
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AVHWAccel ff_mpeg2_vdpau_hwaccel = { |
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.name = "mpeg2_vdpau", |
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.type = AVMEDIA_TYPE_VIDEO, |
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.id = AV_CODEC_ID_MPEG2VIDEO, |
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.pix_fmt = AV_PIX_FMT_VDPAU, |
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.start_frame = vdpau_mpeg_start_frame, |
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.end_frame = ff_vdpau_common_end_frame, |
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.decode_slice = vdpau_mpeg_decode_slice, |
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}; |
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#endif |
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