/*
* 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 <va/va.h>
#include <va/va_dec_vp8.h>
#include "hwaccel.h"
#include "vaapi_decode.h"
#include "vp8.h"
static VASurfaceID vaapi_vp8_surface_id(VP8Frame *vf)
{
if (vf)
return ff_vaapi_get_surface_id(vf->tf.f);
else
return VA_INVALID_SURFACE;
}
static int vaapi_vp8_start_frame(AVCodecContext *avctx,
av_unused const uint8_t *buffer,
av_unused uint32_t size)
{
const VP8Context *s = avctx->priv_data;
VAAPIDecodePicture *pic = s->framep[VP56_FRAME_CURRENT]->hwaccel_picture_private;
VAPictureParameterBufferVP8 pp;
VAProbabilityDataBufferVP8 prob;
VAIQMatrixBufferVP8 quant;
int err, i, j, k;
pic->output_surface = vaapi_vp8_surface_id(s->framep[VP56_FRAME_CURRENT]);
pp = (VAPictureParameterBufferVP8) {
.frame_width = avctx->width,
.frame_height = avctx->height,
.last_ref_frame = vaapi_vp8_surface_id(s->framep[VP56_FRAME_PREVIOUS]),
.golden_ref_frame = vaapi_vp8_surface_id(s->framep[VP56_FRAME_GOLDEN]),
.alt_ref_frame = vaapi_vp8_surface_id(s->framep[VP56_FRAME_GOLDEN2]),
.out_of_loop_frame = VA_INVALID_SURFACE,
.pic_fields.bits = {
.key_frame = !s->keyframe,
.version = s->profile,
.segmentation_enabled = s->segmentation.enabled,
.update_mb_segmentation_map = s->segmentation.update_map,
.update_segment_feature_data = s->segmentation.update_feature_data,
.filter_type = s->filter.simple,
.sharpness_level = s->filter.sharpness,
.loop_filter_adj_enable = s->lf_delta.enabled,
.mode_ref_lf_delta_update = s->lf_delta.update,
.sign_bias_golden = s->sign_bias[VP56_FRAME_GOLDEN],
.sign_bias_alternate = s->sign_bias[VP56_FRAME_GOLDEN2],
.mb_no_coeff_skip = s->mbskip_enabled,
.loop_filter_disable = s->filter.level == 0,
},
.prob_skip_false = s->prob->mbskip,
.prob_intra = s->prob->intra,
.prob_last = s->prob->last,
.prob_gf = s->prob->golden,
};
for (i = 0; i < 3; i++)
pp.mb_segment_tree_probs[i] = s->prob->segmentid[i];
for (i = 0; i < 4; i++) {
if (s->segmentation.enabled) {
pp.loop_filter_level[i] = s->segmentation.filter_level[i];
if (!s->segmentation.absolute_vals)
pp.loop_filter_level[i] += s->filter.level;
} else {
pp.loop_filter_level[i] = s->filter.level;
}
pp.loop_filter_level[i] = av_clip_uintp2(pp.loop_filter_level[i], 6);
}
for (i = 0; i < 4; i++) {
pp.loop_filter_deltas_ref_frame[i] = s->lf_delta.ref[i];
pp.loop_filter_deltas_mode[i] = s->lf_delta.mode[i + 4];
}
if (s->keyframe) {
static const uint8_t keyframe_y_mode_probs[4] = {
145, 156, 163, 128
};
static const uint8_t keyframe_uv_mode_probs[3] = {
142, 114, 183
};
memcpy(pp.y_mode_probs, keyframe_y_mode_probs, 4);
memcpy(pp.uv_mode_probs, keyframe_uv_mode_probs, 3);
} else {
for (i = 0; i < 4; i++)
pp.y_mode_probs[i] = s->prob->pred16x16[i];
for (i = 0; i < 3; i++)
pp.uv_mode_probs[i] = s->prob->pred8x8c[i];
}
for (i = 0; i < 2; i++)
for (j = 0; j < 19; j++)
pp.mv_probs[i][j] = s->prob->mvc[i][j];
pp.bool_coder_ctx.range = s->coder_state_at_header_end.range;
pp.bool_coder_ctx.value = s->coder_state_at_header_end.value;
pp.bool_coder_ctx.count = s->coder_state_at_header_end.bit_count;
err = ff_vaapi_decode_make_param_buffer(avctx, pic,
VAPictureParameterBufferType,
&pp, sizeof(pp));
if (err < 0)
goto fail;
for (i = 0; i < 4; i++) {
for (j = 0; j < 8; j++) {
static const int coeff_bands_inverse[8] = {
0, 1, 2, 3, 5, 6, 4, 15
};
int coeff_pos = coeff_bands_inverse[j];
for (k = 0; k < 3; k++) {
memcpy(prob.dct_coeff_probs[i][j][k],
s->prob->token[i][coeff_pos][k], 11);
}
}
}
err = ff_vaapi_decode_make_param_buffer(avctx, pic,
VAProbabilityBufferType,
&prob, sizeof(prob));
if (err < 0)
goto fail;
for (i = 0; i < 4; i++) {
int base_qi = s->segmentation.base_quant[i];
if (!s->segmentation.absolute_vals)
base_qi += s->quant.yac_qi;
quant.quantization_index[i][0] = av_clip_uintp2(base_qi, 7);
quant.quantization_index[i][1] = av_clip_uintp2(base_qi + s->quant.ydc_delta, 7);
quant.quantization_index[i][2] = av_clip_uintp2(base_qi + s->quant.y2dc_delta, 7);
quant.quantization_index[i][3] = av_clip_uintp2(base_qi + s->quant.y2ac_delta, 7);
quant.quantization_index[i][4] = av_clip_uintp2(base_qi + s->quant.uvdc_delta, 7);
quant.quantization_index[i][5] = av_clip_uintp2(base_qi + s->quant.uvac_delta, 7);
}
err = ff_vaapi_decode_make_param_buffer(avctx, pic,
VAIQMatrixBufferType,
&quant, sizeof(quant));
if (err < 0)
goto fail;
return 0;
fail:
ff_vaapi_decode_cancel(avctx, pic);
return err;
}
static int vaapi_vp8_end_frame(AVCodecContext *avctx)
{
const VP8Context *s = avctx->priv_data;
VAAPIDecodePicture *pic = s->framep[VP56_FRAME_CURRENT]->hwaccel_picture_private;
return ff_vaapi_decode_issue(avctx, pic);
}
static int vaapi_vp8_decode_slice(AVCodecContext *avctx,
const uint8_t *buffer,
uint32_t size)
{
const VP8Context *s = avctx->priv_data;
VAAPIDecodePicture *pic = s->framep[VP56_FRAME_CURRENT]->hwaccel_picture_private;
VASliceParameterBufferVP8 sp;
int err, i;
unsigned int header_size = 3 + 7 * s->keyframe;
const uint8_t *data = buffer + header_size;
unsigned int data_size = size - header_size;
sp = (VASliceParameterBufferVP8) {
.slice_data_size = data_size,
.slice_data_offset = 0,
.slice_data_flag = VA_SLICE_DATA_FLAG_ALL,
.macroblock_offset = (8 * (s->coder_state_at_header_end.input - data) -
s->coder_state_at_header_end.bit_count - 8),
.num_of_partitions = s->num_coeff_partitions + 1,
};
sp.partition_size[0] = s->header_partition_size - ((sp.macroblock_offset + 7) / 8);
for (i = 0; i < 8; i++)
sp.partition_size[i+1] = s->coeff_partition_size[i];
err = ff_vaapi_decode_make_slice_buffer(avctx, pic, &sp, sizeof(sp), data, data_size);
if (err)
goto fail;
return 0;
fail:
ff_vaapi_decode_cancel(avctx, pic);
return err;
}
const AVHWAccel ff_vp8_vaapi_hwaccel = {
.name = "vp8_vaapi",
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_VP8,
.pix_fmt = AV_PIX_FMT_VAAPI,
.start_frame = &vaapi_vp8_start_frame,
.end_frame = &vaapi_vp8_end_frame,
.decode_slice = &vaapi_vp8_decode_slice,
.frame_priv_data_size = sizeof(VAAPIDecodePicture),
.init = &ff_vaapi_decode_init,
.uninit = &ff_vaapi_decode_uninit,
.frame_params = &ff_vaapi_common_frame_params,
.priv_data_size = sizeof(VAAPIDecodeContext),
.caps_internal = HWACCEL_CAP_ASYNC_SAFE,
};