diff options
Diffstat (limited to 'media/ffvpx/libavcodec/vaapi_vp8.c')
| -rw-r--r-- | media/ffvpx/libavcodec/vaapi_vp8.c | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/vaapi_vp8.c b/media/ffvpx/libavcodec/vaapi_vp8.c new file mode 100644 index 0000000000..5b18bf8f34 --- /dev/null +++ b/media/ffvpx/libavcodec/vaapi_vp8.c @@ -0,0 +1,237 @@ +/* + * 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 "hwconfig.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[VP8_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[VP8_FRAME_CURRENT]); + + pp = (VAPictureParameterBufferVP8) { + .frame_width = avctx->width, + .frame_height = avctx->height, + + .last_ref_frame = vaapi_vp8_surface_id(s->framep[VP8_FRAME_PREVIOUS]), + .golden_ref_frame = vaapi_vp8_surface_id(s->framep[VP8_FRAME_GOLDEN]), + .alt_ref_frame = vaapi_vp8_surface_id(s->framep[VP8_FRAME_ALTREF]), + .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[VP8_FRAME_GOLDEN], + .sign_bias_alternate = s->sign_bias[VP8_FRAME_ALTREF], + + .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[VP8_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[VP8_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, +}; 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