diff options
Diffstat (limited to 'libavcodec/vaapi_vp9.c')
| -rw-r--r-- | libavcodec/vaapi_vp9.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/libavcodec/vaapi_vp9.c b/libavcodec/vaapi_vp9.c new file mode 100644 index 0000000000..d8ece75df4 --- /dev/null +++ b/libavcodec/vaapi_vp9.c @@ -0,0 +1,184 @@ +/* + * 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, +}; |