238 lines
8.7 KiB
C
238 lines
8.7 KiB
C
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/*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <va/va.h>
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#include <va/va_dec_vp8.h>
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#include "hwconfig.h"
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#include "vaapi_decode.h"
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#include "vp8.h"
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static VASurfaceID vaapi_vp8_surface_id(VP8Frame *vf)
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{
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if (vf)
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return ff_vaapi_get_surface_id(vf->tf.f);
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else
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return VA_INVALID_SURFACE;
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}
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static int vaapi_vp8_start_frame(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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const VP8Context *s = avctx->priv_data;
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VAAPIDecodePicture *pic = s->framep[VP56_FRAME_CURRENT]->hwaccel_picture_private;
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VAPictureParameterBufferVP8 pp;
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VAProbabilityDataBufferVP8 prob;
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VAIQMatrixBufferVP8 quant;
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int err, i, j, k;
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pic->output_surface = vaapi_vp8_surface_id(s->framep[VP56_FRAME_CURRENT]);
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pp = (VAPictureParameterBufferVP8) {
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.frame_width = avctx->width,
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.frame_height = avctx->height,
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.last_ref_frame = vaapi_vp8_surface_id(s->framep[VP56_FRAME_PREVIOUS]),
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.golden_ref_frame = vaapi_vp8_surface_id(s->framep[VP56_FRAME_GOLDEN]),
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.alt_ref_frame = vaapi_vp8_surface_id(s->framep[VP56_FRAME_GOLDEN2]),
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.out_of_loop_frame = VA_INVALID_SURFACE,
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.pic_fields.bits = {
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.key_frame = !s->keyframe,
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.version = s->profile,
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.segmentation_enabled = s->segmentation.enabled,
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.update_mb_segmentation_map = s->segmentation.update_map,
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.update_segment_feature_data = s->segmentation.update_feature_data,
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.filter_type = s->filter.simple,
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.sharpness_level = s->filter.sharpness,
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.loop_filter_adj_enable = s->lf_delta.enabled,
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.mode_ref_lf_delta_update = s->lf_delta.update,
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.sign_bias_golden = s->sign_bias[VP56_FRAME_GOLDEN],
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.sign_bias_alternate = s->sign_bias[VP56_FRAME_GOLDEN2],
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.mb_no_coeff_skip = s->mbskip_enabled,
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.loop_filter_disable = s->filter.level == 0,
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},
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.prob_skip_false = s->prob->mbskip,
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.prob_intra = s->prob->intra,
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.prob_last = s->prob->last,
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.prob_gf = s->prob->golden,
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};
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for (i = 0; i < 3; i++)
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pp.mb_segment_tree_probs[i] = s->prob->segmentid[i];
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for (i = 0; i < 4; i++) {
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if (s->segmentation.enabled) {
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pp.loop_filter_level[i] = s->segmentation.filter_level[i];
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if (!s->segmentation.absolute_vals)
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pp.loop_filter_level[i] += s->filter.level;
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} else {
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pp.loop_filter_level[i] = s->filter.level;
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}
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pp.loop_filter_level[i] = av_clip_uintp2(pp.loop_filter_level[i], 6);
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}
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for (i = 0; i < 4; i++) {
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pp.loop_filter_deltas_ref_frame[i] = s->lf_delta.ref[i];
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pp.loop_filter_deltas_mode[i] = s->lf_delta.mode[i + 4];
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}
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if (s->keyframe) {
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static const uint8_t keyframe_y_mode_probs[4] = {
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145, 156, 163, 128
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};
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static const uint8_t keyframe_uv_mode_probs[3] = {
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142, 114, 183
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};
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memcpy(pp.y_mode_probs, keyframe_y_mode_probs, 4);
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memcpy(pp.uv_mode_probs, keyframe_uv_mode_probs, 3);
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} else {
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for (i = 0; i < 4; i++)
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pp.y_mode_probs[i] = s->prob->pred16x16[i];
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for (i = 0; i < 3; i++)
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pp.uv_mode_probs[i] = s->prob->pred8x8c[i];
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}
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for (i = 0; i < 2; i++)
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for (j = 0; j < 19; j++)
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pp.mv_probs[i][j] = s->prob->mvc[i][j];
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pp.bool_coder_ctx.range = s->coder_state_at_header_end.range;
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pp.bool_coder_ctx.value = s->coder_state_at_header_end.value;
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pp.bool_coder_ctx.count = s->coder_state_at_header_end.bit_count;
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err = ff_vaapi_decode_make_param_buffer(avctx, pic,
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VAPictureParameterBufferType,
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&pp, sizeof(pp));
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if (err < 0)
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goto fail;
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for (i = 0; i < 4; i++) {
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for (j = 0; j < 8; j++) {
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static const int coeff_bands_inverse[8] = {
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0, 1, 2, 3, 5, 6, 4, 15
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};
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int coeff_pos = coeff_bands_inverse[j];
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for (k = 0; k < 3; k++) {
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memcpy(prob.dct_coeff_probs[i][j][k],
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s->prob->token[i][coeff_pos][k], 11);
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}
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}
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}
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err = ff_vaapi_decode_make_param_buffer(avctx, pic,
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VAProbabilityBufferType,
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&prob, sizeof(prob));
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if (err < 0)
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goto fail;
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for (i = 0; i < 4; i++) {
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int base_qi = s->segmentation.base_quant[i];
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if (!s->segmentation.absolute_vals)
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base_qi += s->quant.yac_qi;
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quant.quantization_index[i][0] = av_clip_uintp2(base_qi, 7);
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quant.quantization_index[i][1] = av_clip_uintp2(base_qi + s->quant.ydc_delta, 7);
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quant.quantization_index[i][2] = av_clip_uintp2(base_qi + s->quant.y2dc_delta, 7);
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quant.quantization_index[i][3] = av_clip_uintp2(base_qi + s->quant.y2ac_delta, 7);
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quant.quantization_index[i][4] = av_clip_uintp2(base_qi + s->quant.uvdc_delta, 7);
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quant.quantization_index[i][5] = av_clip_uintp2(base_qi + s->quant.uvac_delta, 7);
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}
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err = ff_vaapi_decode_make_param_buffer(avctx, pic,
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VAIQMatrixBufferType,
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&quant, sizeof(quant));
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if (err < 0)
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goto fail;
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return 0;
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fail:
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ff_vaapi_decode_cancel(avctx, pic);
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return err;
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}
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static int vaapi_vp8_end_frame(AVCodecContext *avctx)
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{
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const VP8Context *s = avctx->priv_data;
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VAAPIDecodePicture *pic = s->framep[VP56_FRAME_CURRENT]->hwaccel_picture_private;
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return ff_vaapi_decode_issue(avctx, pic);
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}
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static int vaapi_vp8_decode_slice(AVCodecContext *avctx,
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const uint8_t *buffer,
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uint32_t size)
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{
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const VP8Context *s = avctx->priv_data;
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VAAPIDecodePicture *pic = s->framep[VP56_FRAME_CURRENT]->hwaccel_picture_private;
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VASliceParameterBufferVP8 sp;
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int err, i;
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unsigned int header_size = 3 + 7 * s->keyframe;
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const uint8_t *data = buffer + header_size;
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unsigned int data_size = size - header_size;
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sp = (VASliceParameterBufferVP8) {
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.slice_data_size = data_size,
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.slice_data_offset = 0,
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.slice_data_flag = VA_SLICE_DATA_FLAG_ALL,
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.macroblock_offset = (8 * (s->coder_state_at_header_end.input - data) -
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s->coder_state_at_header_end.bit_count - 8),
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.num_of_partitions = s->num_coeff_partitions + 1,
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};
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sp.partition_size[0] = s->header_partition_size - ((sp.macroblock_offset + 7) / 8);
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for (i = 0; i < 8; i++)
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sp.partition_size[i+1] = s->coeff_partition_size[i];
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err = ff_vaapi_decode_make_slice_buffer(avctx, pic, &sp, sizeof(sp), data, data_size);
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if (err)
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goto fail;
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return 0;
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fail:
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ff_vaapi_decode_cancel(avctx, pic);
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return err;
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}
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const AVHWAccel ff_vp8_vaapi_hwaccel = {
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.name = "vp8_vaapi",
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.type = AVMEDIA_TYPE_VIDEO,
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.id = AV_CODEC_ID_VP8,
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.pix_fmt = AV_PIX_FMT_VAAPI,
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.start_frame = &vaapi_vp8_start_frame,
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.end_frame = &vaapi_vp8_end_frame,
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.decode_slice = &vaapi_vp8_decode_slice,
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.frame_priv_data_size = sizeof(VAAPIDecodePicture),
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.init = &ff_vaapi_decode_init,
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.uninit = &ff_vaapi_decode_uninit,
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.frame_params = &ff_vaapi_common_frame_params,
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.priv_data_size = sizeof(VAAPIDecodeContext),
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.caps_internal = HWACCEL_CAP_ASYNC_SAFE,
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};
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