FFmpeg/libavcodec/vaapi_vp9.c
Ronald S. Bultje 0c46641784 vp9: split out generic decoding skeleton interface API from VP9 types.
This allows vp9dsp.h to only include the VP9 types header, and not the
decoder skeleton interface which is for hardware decoders (dxva2/vaapi).
2017-03-28 18:04:27 -04:00

185 lines
7.2 KiB
C

/*
* VP9 HW decode acceleration through VA API
*
* Copyright (C) 2015 Timo Rothenpieler <timo@rothenpieler.org>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/pixdesc.h"
#include "hwaccel.h"
#include "vaapi_decode.h"
#include "vp9shared.h"
static VASurfaceID vaapi_vp9_surface_id(const VP9Frame *vf)
{
if (vf)
return ff_vaapi_get_surface_id(vf->tf.f);
else
return VA_INVALID_SURFACE;
}
static int vaapi_vp9_start_frame(AVCodecContext *avctx,
av_unused const uint8_t *buffer,
av_unused uint32_t size)
{
const VP9SharedContext *h = avctx->priv_data;
VAAPIDecodePicture *pic = h->frames[CUR_FRAME].hwaccel_picture_private;
VADecPictureParameterBufferVP9 pic_param;
const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(avctx->sw_pix_fmt);
int err, i;
pic->output_surface = vaapi_vp9_surface_id(&h->frames[CUR_FRAME]);
pic_param = (VADecPictureParameterBufferVP9) {
.frame_width = avctx->width,
.frame_height = avctx->height,
.pic_fields.bits = {
.subsampling_x = pixdesc->log2_chroma_w,
.subsampling_y = pixdesc->log2_chroma_h,
.frame_type = !h->h.keyframe,
.show_frame = !h->h.invisible,
.error_resilient_mode = h->h.errorres,
.intra_only = h->h.intraonly,
.allow_high_precision_mv = h->h.keyframe ? 0 : h->h.highprecisionmvs,
.mcomp_filter_type = h->h.filtermode ^ (h->h.filtermode <= 1),
.frame_parallel_decoding_mode = h->h.parallelmode,
.reset_frame_context = h->h.resetctx,
.refresh_frame_context = h->h.refreshctx,
.frame_context_idx = h->h.framectxid,
.segmentation_enabled = h->h.segmentation.enabled,
.segmentation_temporal_update = h->h.segmentation.temporal,
.segmentation_update_map = h->h.segmentation.update_map,
.last_ref_frame = h->h.refidx[0],
.last_ref_frame_sign_bias = h->h.signbias[0],
.golden_ref_frame = h->h.refidx[1],
.golden_ref_frame_sign_bias = h->h.signbias[1],
.alt_ref_frame = h->h.refidx[2],
.alt_ref_frame_sign_bias = h->h.signbias[2],
.lossless_flag = h->h.lossless,
},
.filter_level = h->h.filter.level,
.sharpness_level = h->h.filter.sharpness,
.log2_tile_rows = h->h.tiling.log2_tile_rows,
.log2_tile_columns = h->h.tiling.log2_tile_cols,
.frame_header_length_in_bytes = h->h.uncompressed_header_size,
.first_partition_size = h->h.compressed_header_size,
.profile = h->h.profile,
.bit_depth = h->h.bpp,
};
for (i = 0; i < 7; i++)
pic_param.mb_segment_tree_probs[i] = h->h.segmentation.prob[i];
if (h->h.segmentation.temporal) {
for (i = 0; i < 3; i++)
pic_param.segment_pred_probs[i] = h->h.segmentation.pred_prob[i];
} else {
memset(pic_param.segment_pred_probs, 255, sizeof(pic_param.segment_pred_probs));
}
for (i = 0; i < 8; i++) {
if (h->refs[i].f->buf[0])
pic_param.reference_frames[i] = ff_vaapi_get_surface_id(h->refs[i].f);
else
pic_param.reference_frames[i] = VA_INVALID_ID;
}
err = ff_vaapi_decode_make_param_buffer(avctx, pic,
VAPictureParameterBufferType,
&pic_param, sizeof(pic_param));
if (err < 0) {
ff_vaapi_decode_cancel(avctx, pic);
return err;
}
return 0;
}
static int vaapi_vp9_end_frame(AVCodecContext *avctx)
{
const VP9SharedContext *h = avctx->priv_data;
VAAPIDecodePicture *pic = h->frames[CUR_FRAME].hwaccel_picture_private;
return ff_vaapi_decode_issue(avctx, pic);
}
static int vaapi_vp9_decode_slice(AVCodecContext *avctx,
const uint8_t *buffer,
uint32_t size)
{
const VP9SharedContext *h = avctx->priv_data;
VAAPIDecodePicture *pic = h->frames[CUR_FRAME].hwaccel_picture_private;
VASliceParameterBufferVP9 slice_param;
int err, i;
slice_param = (VASliceParameterBufferVP9) {
.slice_data_size = size,
.slice_data_offset = 0,
.slice_data_flag = VA_SLICE_DATA_FLAG_ALL,
};
for (i = 0; i < 8; i++) {
slice_param.seg_param[i] = (VASegmentParameterVP9) {
.segment_flags.fields = {
.segment_reference_enabled = h->h.segmentation.feat[i].ref_enabled,
.segment_reference = h->h.segmentation.feat[i].ref_val,
.segment_reference_skipped = h->h.segmentation.feat[i].skip_enabled,
},
.luma_dc_quant_scale = h->h.segmentation.feat[i].qmul[0][0],
.luma_ac_quant_scale = h->h.segmentation.feat[i].qmul[0][1],
.chroma_dc_quant_scale = h->h.segmentation.feat[i].qmul[1][0],
.chroma_ac_quant_scale = h->h.segmentation.feat[i].qmul[1][1],
};
memcpy(slice_param.seg_param[i].filter_level, h->h.segmentation.feat[i].lflvl, sizeof(slice_param.seg_param[i].filter_level));
}
err = ff_vaapi_decode_make_slice_buffer(avctx, pic,
&slice_param, sizeof(slice_param),
buffer, size);
if (err) {
ff_vaapi_decode_cancel(avctx, pic);
return err;
}
return 0;
}
AVHWAccel ff_vp9_vaapi_hwaccel = {
.name = "vp9_vaapi",
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_VP9,
.pix_fmt = AV_PIX_FMT_VAAPI,
.start_frame = vaapi_vp9_start_frame,
.end_frame = vaapi_vp9_end_frame,
.decode_slice = vaapi_vp9_decode_slice,
.frame_priv_data_size = sizeof(VAAPIDecodePicture),
.init = ff_vaapi_decode_init,
.uninit = ff_vaapi_decode_uninit,
.priv_data_size = sizeof(VAAPIDecodeContext),
.caps_internal = HWACCEL_CAP_ASYNC_SAFE,
};