mirror of https://github.com/FFmpeg/FFmpeg.git
Mark Thompson
7 years ago
parent
9f00fa5369
commit
40b75a943b
5 changed files with 248 additions and 0 deletions
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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 "hwaccel.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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