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https://github.com/FFmpeg/FFmpeg.git
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2c54155407
Most of the changes are just trivial are just trivial replacements of fields from MpegEncContext with equivalent fields in H264Context. Everything in h264* other than h264.c are those trivial changes. The nontrivial parts are: 1) extracting a simplified version of the frame management code from mpegvideo.c. We don't need last/next_picture anymore, since h264 uses its own more complex system already and those were set only to appease the mpegvideo parts. 2) some tables that need to be allocated/freed in appropriate places. 3) hwaccels -- mostly trivial replacements. for dxva, the draw_horiz_band() call is moved from ff_dxva2_common_end_frame() to per-codec end_frame() callbacks, because it's now different for h264 and MpegEncContext-based decoders. 4) svq3 -- it does not use h264 complex reference system, so I just added some very simplistic frame management instead and dropped the use of ff_h264_frame_start(). Because of this I also had to move some initialization code to svq3. Additional fixes for chroma format and bit depth changes by Janne Grunau <janne-libav@jannau.net> Signed-off-by: Anton Khirnov <anton@khirnov.net>
129 lines
4.3 KiB
C
129 lines
4.3 KiB
C
/*
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* VC-1 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 "vc1.h"
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#include "vdpau.h"
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#include "vdpau_internal.h"
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static int vdpau_vc1_start_frame(AVCodecContext *avctx,
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const uint8_t *buffer, uint32_t size)
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{
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VC1Context * const v = avctx->priv_data;
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AVVDPAUContext *hwctx = avctx->hwaccel_context;
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MpegEncContext * const s = &v->s;
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VdpPictureInfoVC1 *info = &hwctx->info.vc1;
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VdpVideoSurface ref;
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/* fill LvPictureInfoVC1 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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info->backward_reference = ref;
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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->slice_count = 0;
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if (v->bi_type)
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info->picture_type = 4;
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else
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info->picture_type = s->pict_type - 1 + s->pict_type / 3;
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info->frame_coding_mode = v->fcm;
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info->postprocflag = v->postprocflag;
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info->pulldown = v->broadcast;
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info->interlace = v->interlace;
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info->tfcntrflag = v->tfcntrflag;
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info->finterpflag = v->finterpflag;
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info->psf = v->psf;
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info->dquant = v->dquant;
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info->panscan_flag = v->panscanflag;
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info->refdist_flag = v->refdist_flag;
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info->quantizer = v->quantizer_mode;
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info->extended_mv = v->extended_mv;
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info->extended_dmv = v->extended_dmv;
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info->overlap = v->overlap;
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info->vstransform = v->vstransform;
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info->loopfilter = v->s.loop_filter;
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info->fastuvmc = v->fastuvmc;
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info->range_mapy_flag = v->range_mapy_flag;
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info->range_mapy = v->range_mapy;
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info->range_mapuv_flag = v->range_mapuv_flag;
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info->range_mapuv = v->range_mapuv;
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/* Specific to simple/main profile only */
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info->multires = v->multires;
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info->syncmarker = v->s.resync_marker;
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info->rangered = v->rangered | (v->rangeredfrm << 1);
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info->maxbframes = v->s.max_b_frames;
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info->deblockEnable = v->postprocflag & 1;
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info->pquant = v->pq;
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return ff_vdpau_common_start_frame(avctx, buffer, size);
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}
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static int vdpau_vc1_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.vc1.slice_count++;
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return 0;
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}
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#if CONFIG_WMV3_VDPAU_HWACCEL
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AVHWAccel ff_wmv3_vdpau_hwaccel = {
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.name = "wm3_vdpau",
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.type = AVMEDIA_TYPE_VIDEO,
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.id = AV_CODEC_ID_WMV3,
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.pix_fmt = AV_PIX_FMT_VDPAU,
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.start_frame = vdpau_vc1_start_frame,
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.end_frame = ff_vdpau_mpeg_end_frame,
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.decode_slice = vdpau_vc1_decode_slice,
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};
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#endif
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AVHWAccel ff_vc1_vdpau_hwaccel = {
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.name = "vc1_vdpau",
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.type = AVMEDIA_TYPE_VIDEO,
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.id = AV_CODEC_ID_VC1,
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.pix_fmt = AV_PIX_FMT_VDPAU,
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.start_frame = vdpau_vc1_start_frame,
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.end_frame = ff_vdpau_mpeg_end_frame,
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.decode_slice = vdpau_vc1_decode_slice,
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};
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