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
aaf9d0e8f3
commit
200e8ac920
5 changed files with 117 additions and 1 deletions
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/*
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* MPEG-4 Part 2 / H.263 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_mpeg4_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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VdpPictureInfoMPEG4Part2 *info = &hwctx->info.mpeg4; |
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VdpVideoSurface ref; |
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int i; |
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/* fill VdpPictureInfoMPEG4Part2 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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info->vop_coding_type = 0; |
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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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info->backward_reference = ref; |
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info->vop_coding_type = 2; |
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/* fall-through */ |
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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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assert(ref != VDP_INVALID_HANDLE); |
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info->forward_reference = ref; |
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} |
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info->trd[0] = s->pp_time; |
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info->trb[0] = s->pb_time; |
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info->trd[1] = s->pp_field_time >> 1; |
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info->trb[1] = s->pb_field_time >> 1; |
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info->vop_time_increment_resolution = s->avctx->time_base.den; |
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info->vop_fcode_forward = s->f_code; |
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info->vop_fcode_backward = s->b_code; |
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info->resync_marker_disable = !s->resync_marker; |
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info->interlaced = !s->progressive_sequence; |
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info->quant_type = s->mpeg_quant; |
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info->quarter_sample = s->quarter_sample; |
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info->short_video_header = avctx->codec->id == AV_CODEC_ID_H263; |
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info->rounding_control = s->no_rounding; |
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info->alternate_vertical_scan_flag = s->alternate_scan; |
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info->top_field_first = s->top_field_first; |
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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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ff_vdpau_common_start_frame(avctx, buffer, size); |
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return ff_vdpau_add_buffer(avctx, buffer, size); |
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} |
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static int vdpau_mpeg4_decode_slice(av_unused AVCodecContext *avctx, |
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av_unused const uint8_t *buffer, |
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av_unused uint32_t size) |
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{ |
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return 0; |
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} |
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#if CONFIG_H263_VDPAU_HWACCEL |
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AVHWAccel ff_h263_vdpau_hwaccel = { |
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.name = "h263_vdpau", |
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.type = AVMEDIA_TYPE_VIDEO, |
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.id = AV_CODEC_ID_H263, |
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.pix_fmt = AV_PIX_FMT_VDPAU, |
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.start_frame = vdpau_mpeg4_start_frame, |
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.end_frame = ff_vdpau_common_end_frame, |
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.decode_slice = vdpau_mpeg4_decode_slice, |
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}; |
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#endif |
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#if CONFIG_MPEG4_VDPAU_HWACCEL |
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AVHWAccel ff_mpeg4_vdpau_hwaccel = { |
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.name = "mpeg4_vdpau", |
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.type = AVMEDIA_TYPE_VIDEO, |
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.id = AV_CODEC_ID_MPEG4, |
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.pix_fmt = AV_PIX_FMT_VDPAU, |
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.start_frame = vdpau_mpeg4_start_frame, |
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.end_frame = ff_vdpau_common_end_frame, |
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.decode_slice = vdpau_mpeg4_decode_slice, |
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}; |
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#endif |
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