avcodec: add av1 VAAPI decoder

Example cmdline:
ffmpeg -hwaccel vaapi -hwaccel_device /dev/dri/renderD128 -v verbose \
-c:v av1 -i input.ivf -pix_fmt yuv420p -vsync passthrough -f md5     \
-y out.md5

Signed-off-by: Fei Wang <fei.w.wang@intel.com>

1 files changed, 274 insertions, 0 deletions

diff --git a/libavcodec/vaapi_av1.c b/libavcodec/vaapi_av1.c
new file mode 100644
index 0000000000..fcce86b7e5
--- /dev/null
+++ b/libavcodec/vaapi_av1.c
@@ -0,0 +1,274 @@
+/*
+ * AV1 HW decode acceleration through VA API
+ *
+ * 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 "hwconfig.h"
+#include "vaapi_decode.h"
+#include "av1dec.h"
+
+static VASurfaceID vaapi_av1_surface_id(AV1Frame *vf)
+{
+    if (vf)
+        return ff_vaapi_get_surface_id(vf->tf.f);
+    else
+        return VA_INVALID_SURFACE;
+}
+
+static int8_t vaapi_av1_get_bit_depth_idx(AVCodecContext *avctx)
+{
+    AV1DecContext *s = avctx->priv_data;
+    const AV1RawSequenceHeader *seq = s->raw_seq;
+    int8_t bit_depth = 8;
+
+    if (seq->seq_profile == 2 && seq->color_config.high_bitdepth)
+        bit_depth = seq->color_config.twelve_bit ? 12 : 10;
+    else if (seq->seq_profile <= 2)
+        bit_depth = seq->color_config.high_bitdepth ? 10 : 8;
+    else {
+        av_log(avctx, AV_LOG_ERROR,
+               "Couldn't get bit depth from profile:%d.\n", seq->seq_profile);
+        return -1;
+    }
+    return bit_depth == 8 ? 0 : bit_depth == 10 ? 1 : 2;
+}
+
+static int vaapi_av1_start_frame(AVCodecContext *avctx,
+                                 av_unused const uint8_t *buffer,
+                                 av_unused uint32_t size)
+{
+    AV1DecContext *s = avctx->priv_data;
+    const AV1RawSequenceHeader *seq = s->raw_seq;
+    const AV1RawFrameHeader *frame_header = s->raw_frame_header;
+    VAAPIDecodePicture *pic = s->cur_frame.hwaccel_picture_private;
+    VADecPictureParameterBufferAV1 pic_param;
+    int8_t bit_depth_idx;
+    int err = 0;
+    uint8_t remap_lr_type[4] = {AV1_RESTORE_NONE, AV1_RESTORE_SWITCHABLE, AV1_RESTORE_WIENER, AV1_RESTORE_SGRPROJ};
+
+    pic->output_surface = vaapi_av1_surface_id(&s->cur_frame);
+
+    bit_depth_idx = vaapi_av1_get_bit_depth_idx(avctx);
+    if (bit_depth_idx < 0)
+        goto fail;
+
+    memset(&pic_param, 0, sizeof(VADecPictureParameterBufferAV1));
+    pic_param = (VADecPictureParameterBufferAV1) {
+        .profile                 = seq->seq_profile,
+        .order_hint_bits_minus_1 = seq->order_hint_bits_minus_1,
+        .bit_depth_idx           = bit_depth_idx,
+        .current_frame           = pic->output_surface,
+        .current_display_picture = pic->output_surface,
+        .frame_width_minus1      = frame_header->frame_width_minus_1,
+        .frame_height_minus1     = frame_header->frame_height_minus_1,
+        .primary_ref_frame       = frame_header->primary_ref_frame,
+        .order_hint              = frame_header->order_hint,
+        .tile_cols               = frame_header->tile_cols,
+        .tile_rows               = frame_header->tile_rows,
+        .context_update_tile_id  = frame_header->context_update_tile_id,
+        .interp_filter           = frame_header->interpolation_filter,
+        .filter_level[0]         = frame_header->loop_filter_level[0],
+        .filter_level[1]         = frame_header->loop_filter_level[1],
+        .filter_level_u          = frame_header->loop_filter_level[2],
+        .filter_level_v          = frame_header->loop_filter_level[3],
+        .base_qindex             = frame_header->base_q_idx,
+        .cdef_damping_minus_3    = frame_header->cdef_damping_minus_3,
+        .cdef_bits               = frame_header->cdef_bits,
+        .seq_info_fields.fields = {
+            .still_picture              = seq->still_picture,
+            .use_128x128_superblock     = seq->use_128x128_superblock,
+            .enable_filter_intra        = seq->enable_filter_intra,
+            .enable_intra_edge_filter   = seq->enable_intra_edge_filter,
+            .enable_interintra_compound = seq->enable_interintra_compound,
+            .enable_masked_compound     = seq->enable_masked_compound,
+            .enable_dual_filter         = seq->enable_dual_filter,
+            .enable_order_hint          = seq->enable_order_hint,
+            .enable_jnt_comp            = seq->enable_jnt_comp,
+            .enable_cdef                = seq->enable_cdef,
+            .mono_chrome                = seq->color_config.mono_chrome,
+            .color_range                = seq->color_config.color_range,
+            .subsampling_x              = seq->color_config.subsampling_x,
+            .subsampling_y              = seq->color_config.subsampling_y,
+            .chroma_sample_position     = seq->color_config.chroma_sample_position,
+            .film_grain_params_present  = seq->film_grain_params_present,
+        },
+        .seg_info.segment_info_fields.bits = {
+            .enabled         = frame_header->segmentation_enabled,
+            .update_map      = frame_header->segmentation_update_map,
+            .temporal_update = frame_header->segmentation_temporal_update,
+            .update_data     = frame_header->segmentation_update_data,
+        },
+        .film_grain_info.film_grain_info_fields.bits = {
+            .apply_grain              = frame_header->apply_grain,
+            .chroma_scaling_from_luma = frame_header->chroma_scaling_from_luma,
+            .grain_scaling_minus_8    = frame_header->grain_scaling_minus_8,
+            .ar_coeff_lag             = frame_header->ar_coeff_lag,
+            .ar_coeff_shift_minus_6   = frame_header->ar_coeff_shift_minus_6,
+            .grain_scale_shift        = frame_header->grain_scale_shift,
+            .overlap_flag             = frame_header->overlap_flag,
+            .clip_to_restricted_range = frame_header->clip_to_restricted_range,
+        },
+        .pic_info_fields.bits = {
+            .frame_type                   = frame_header->frame_type,
+            .show_frame                   = frame_header->show_frame,
+            .showable_frame               = frame_header->showable_frame,
+            .error_resilient_mode         = frame_header->error_resilient_mode,
+            .disable_cdf_update           = frame_header->disable_cdf_update,
+            .allow_screen_content_tools   = frame_header->allow_screen_content_tools,
+            .force_integer_mv             = frame_header->force_integer_mv,
+            .allow_intrabc                = frame_header->allow_intrabc,
+            .use_superres                 = frame_header->use_superres,
+            .allow_high_precision_mv      = frame_header->allow_high_precision_mv,
+            .is_motion_mode_switchable    = frame_header->is_motion_mode_switchable,
+            .use_ref_frame_mvs            = frame_header->use_ref_frame_mvs,
+            .disable_frame_end_update_cdf = frame_header->disable_frame_end_update_cdf,
+            .uniform_tile_spacing_flag    = frame_header->uniform_tile_spacing_flag,
+            .allow_warped_motion          = frame_header->allow_warped_motion,
+        },
+        .loop_filter_info_fields.bits = {
+            .sharpness_level        = frame_header->loop_filter_sharpness,
+            .mode_ref_delta_enabled = frame_header->loop_filter_delta_enabled,
+            .mode_ref_delta_update  = frame_header->loop_filter_delta_update,
+        },
+        .mode_control_fields.bits = {
+            .delta_q_present_flag = frame_header->delta_q_present,
+            .log2_delta_q_res     = frame_header->delta_q_res,
+            .tx_mode              = frame_header->tx_mode,
+            .reference_select     = frame_header->reference_select,
+            .reduced_tx_set_used  = frame_header->reduced_tx_set,
+            .skip_mode_present    = frame_header->skip_mode_present,
+        },
+        .loop_restoration_fields.bits = {
+            .yframe_restoration_type  = remap_lr_type[frame_header->lr_type[0]],
+            .cbframe_restoration_type = remap_lr_type[frame_header->lr_type[1]],
+            .crframe_restoration_type = remap_lr_type[frame_header->lr_type[2]],
+            .lr_unit_shift            = frame_header->lr_unit_shift,
+            .lr_uv_shift              = frame_header->lr_uv_shift,
+        },
+        .qmatrix_fields.bits = {
+            .using_qmatrix = frame_header->using_qmatrix,
+        }
+    };
+
+    for (int i = 0; i < AV1_NUM_REF_FRAMES; i++) {
+        if (pic_param.pic_info_fields.bits.frame_type == AV1_FRAME_KEY)
+            pic_param.ref_frame_map[i] = VA_INVALID_ID;
+        else
+            pic_param.ref_frame_map[i] = vaapi_av1_surface_id(&s->ref[i]);
+    }
+    for (int i = 0; i < AV1_REFS_PER_FRAME; i++) {
+        pic_param.ref_frame_idx[i] = frame_header->ref_frame_idx[i];
+    }
+    for (int i = 0; i < AV1_TOTAL_REFS_PER_FRAME; i++) {
+        pic_param.ref_deltas[i] = frame_header->loop_filter_ref_deltas[i];
+    }
+    for (int i = 0; i < 2; i++) {
+        pic_param.mode_deltas[i] = frame_header->loop_filter_mode_deltas[i];
+    }
+    for (int i = 0; i < (1 << frame_header->cdef_bits); i++) {
+        pic_param.cdef_y_strengths[i] =
+            (frame_header->cdef_y_pri_strength[i] << 2) +
+                frame_header->cdef_y_sec_strength[i];
+        pic_param.cdef_uv_strengths[i] =
+            (frame_header->cdef_uv_pri_strength[i] << 2) +
+                frame_header->cdef_uv_sec_strength[i];
+    }
+    for (int i = 0; i < frame_header->tile_cols; i++) {
+        pic_param.width_in_sbs_minus_1[i] =
+            frame_header->width_in_sbs_minus_1[i];
+    }
+    for (int i = 0; i < frame_header->tile_rows; i++) {
+        pic_param.height_in_sbs_minus_1[i] =
+            frame_header->height_in_sbs_minus_1[i];
+    }
+    for (int i = AV1_REF_FRAME_LAST; i <= AV1_REF_FRAME_ALTREF; i++) {
+        pic_param.wm[i - 1].wmtype = s->cur_frame.gm_type[i];
+        for (int j = 0; j < 6; j++)
+            pic_param.wm[i - 1].wmmat[j] = s->cur_frame.gm_params[i][j];
+    }
+    err = ff_vaapi_decode_make_param_buffer(avctx, pic,
+                                            VAPictureParameterBufferType,
+                                            &pic_param, sizeof(pic_param));
+    if (err < 0)
+        goto fail;
+
+    return 0;
+
+fail:
+    ff_vaapi_decode_cancel(avctx, pic);
+    return err;
+}
+
+static int vaapi_av1_end_frame(AVCodecContext *avctx)
+{
+    const AV1DecContext *s = avctx->priv_data;
+    VAAPIDecodePicture *pic = s->cur_frame.hwaccel_picture_private;
+    return ff_vaapi_decode_issue(avctx, pic);
+}
+
+static int vaapi_av1_decode_slice(AVCodecContext *avctx,
+                                  const uint8_t *buffer,
+                                  uint32_t size)
+{
+    const AV1DecContext *s = avctx->priv_data;
+    VAAPIDecodePicture *pic = s->cur_frame.hwaccel_picture_private;
+    VASliceParameterBufferAV1 slice_param;
+    int err = 0;
+
+    for (int i = s->tg_start; i <= s->tg_end; i++) {
+        memset(&slice_param, 0, sizeof(VASliceParameterBufferAV1));
+
+        slice_param = (VASliceParameterBufferAV1) {
+            .slice_data_size   = s->tile_group_info[i].tile_size,
+            .slice_data_offset = s->tile_group_info[i].tile_offset,
+            .slice_data_flag   = VA_SLICE_DATA_FLAG_ALL,
+            .tile_row          = s->tile_group_info[i].tile_row,
+            .tile_column       = s->tile_group_info[i].tile_column,
+            .tg_start          = s->tg_start,
+            .tg_end            = s->tg_end,
+        };
+
+        err = ff_vaapi_decode_make_slice_buffer(avctx, pic, &slice_param,
+                                                sizeof(VASliceParameterBufferAV1),
+                                                buffer,
+                                                s->tile_group_info[i].tile_size);
+        if (err) {
+            ff_vaapi_decode_cancel(avctx, pic);
+            return err;
+        }
+    }
+
+    return 0;
+}
+
+const AVHWAccel ff_av1_vaapi_hwaccel = {
+    .name                 = "av1_vaapi",
+    .type                 = AVMEDIA_TYPE_VIDEO,
+    .id                   = AV_CODEC_ID_AV1,
+    .pix_fmt              = AV_PIX_FMT_VAAPI,
+    .start_frame          = vaapi_av1_start_frame,
+    .end_frame            = vaapi_av1_end_frame,
+    .decode_slice         = vaapi_av1_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,
+};