/**************************************************************************
*
* Copyright 2016 Advanced Micro Devices, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#include "pipe/p_video_codec.h"
#include "util/u_memory.h"
#include "util/u_video.h"
#include "vl/vl_rbsp.h"
#include "entrypoint.h"
#include "vid_dec.h"
#define DPB_MAX_SIZE 32
#define MAX_NUM_REF_PICS 16
enum {
NAL_UNIT_TYPE_TRAIL_N = 0,
NAL_UNIT_TYPE_TRAIL_R = 1,
NAL_UNIT_TYPE_TSA_N = 2,
NAL_UNIT_TYPE_TSA_R = 3,
NAL_UNIT_TYPE_STSA_N = 4,
NAL_UNIT_TYPE_STSA_R = 5,
NAL_UNIT_TYPE_RADL_N = 6,
NAL_UNIT_TYPE_RADL_R = 7,
NAL_UNIT_TYPE_RASL_N = 8,
NAL_UNIT_TYPE_RASL_R = 9,
NAL_UNIT_TYPE_BLA_W_LP = 16,
NAL_UNIT_TYPE_BLA_W_RADL = 17,
NAL_UNIT_TYPE_BLA_N_LP = 18,
NAL_UNIT_TYPE_IDR_W_RADL = 19,
NAL_UNIT_TYPE_IDR_N_LP = 20,
NAL_UNIT_TYPE_CRA = 21,
NAL_UNIT_TYPE_SPS = 33,
NAL_UNIT_TYPE_PPS = 34,
};
static const uint8_t Default_8x8_Intra[64] = {
16, 16, 16, 16, 17, 18, 21, 24,
16, 16, 16, 16, 17, 19, 22, 25,
16, 16, 17, 18, 20, 22, 25, 29,
16, 16, 18, 21, 24, 27, 31, 36,
17, 17, 20, 24, 30, 35, 41, 47,
18, 19, 22, 27, 35, 44, 54, 65,
21, 22, 25, 31, 41, 54, 70, 88,
24, 25, 29, 36, 47, 65, 88, 115
};
static const uint8_t Default_8x8_Inter[64] = {
16, 16, 16, 16, 17, 18, 20, 24,
16, 16, 16, 17, 18, 20, 24, 25,
16, 16, 17, 18, 20, 24, 25, 28,
16, 17, 18, 20, 24, 25, 28, 33,
17, 18, 20, 24, 25, 28, 33, 41,
18, 20, 24, 25, 28, 33, 41, 54,
20, 24, 25, 28, 33, 41, 54, 71,
24, 25, 28, 33, 41, 54, 71, 91
};
struct dpb_list {
struct list_head list;
struct pipe_video_buffer *buffer;
OMX_TICKS timestamp;
unsigned poc;
};
struct ref_pic_set {
unsigned num_pics;
unsigned num_neg_pics;
unsigned num_pos_pics;
unsigned num_delta_poc;
int delta_poc[MAX_NUM_REF_PICS];
bool used[MAX_NUM_REF_PICS];
};
static bool is_idr_picture(unsigned nal_unit_type)
{
return (nal_unit_type == NAL_UNIT_TYPE_IDR_W_RADL ||
nal_unit_type == NAL_UNIT_TYPE_IDR_N_LP);
}
/* broken link access picture */
static bool is_bla_picture(unsigned nal_unit_type)
{
return (nal_unit_type == NAL_UNIT_TYPE_BLA_W_LP ||
nal_unit_type == NAL_UNIT_TYPE_BLA_W_RADL ||
nal_unit_type == NAL_UNIT_TYPE_BLA_N_LP);
}
/* random access point picture */
static bool is_rap_picture(unsigned nal_unit_type)
{
return (nal_unit_type >= NAL_UNIT_TYPE_BLA_W_LP &&
nal_unit_type <= NAL_UNIT_TYPE_CRA);
}
static bool is_slice_picture(unsigned nal_unit_type)
{
return (nal_unit_type <= NAL_UNIT_TYPE_RASL_R ||
is_rap_picture(nal_unit_type));
}
static void set_poc(vid_dec_PrivateType *priv,
unsigned nal_unit_type, int i)
{
priv->picture.h265.CurrPicOrderCntVal = i;
if (priv->codec_data.h265.temporal_id == 0 &&
(nal_unit_type == NAL_UNIT_TYPE_TRAIL_R ||
nal_unit_type == NAL_UNIT_TYPE_TSA_R ||
nal_unit_type == NAL_UNIT_TYPE_STSA_R ||
is_rap_picture(nal_unit_type)))
priv->codec_data.h265.slice_prev_poc = i;
}
static unsigned get_poc(vid_dec_PrivateType *priv)
{
return priv->picture.h265.CurrPicOrderCntVal;
}
static void profile_tier(struct vl_rbsp *rbsp)
{
int i;
/* general_profile_space */
vl_rbsp_u(rbsp, 2);
/* general_tier_flag */
vl_rbsp_u(rbsp, 1);
/* general_profile_idc */
vl_rbsp_u(rbsp, 5);
/* general_profile_compatibility_flag */
for(i = 0; i < 32; ++i)
vl_rbsp_u(rbsp, 1);
/* general_progressive_source_flag */
vl_rbsp_u(rbsp, 1);
/* general_interlaced_source_flag */
vl_rbsp_u(rbsp, 1);
/* general_non_packed_constraint_flag */
vl_rbsp_u(rbsp, 1);
/* general_frame_only_constraint_flag */
vl_rbsp_u(rbsp, 1);
/* general_reserved_zero_44bits */
vl_rbsp_u(rbsp, 16);
vl_rbsp_u(rbsp, 16);
vl_rbsp_u(rbsp, 12);
}
static unsigned profile_tier_level(struct vl_rbsp *rbsp,
int max_sublayers_minus1)
{
bool sub_layer_profile_present_flag[6];
bool sub_layer_level_present_flag[6];
unsigned level_idc;
int i;
profile_tier(rbsp);
/* general_level_idc */
level_idc = vl_rbsp_u(rbsp, 8);
for (i = 0; i < max_sublayers_minus1; ++i) {
sub_layer_profile_present_flag[i] = vl_rbsp_u(rbsp, 1);
sub_layer_level_present_flag[i] = vl_rbsp_u(rbsp, 1);
}
if (max_sublayers_minus1 > 0)
for (i = max_sublayers_minus1; i < 8; ++i)
/* reserved_zero_2bits */
vl_rbsp_u(rbsp, 2);
for (i = 0; i < max_sublayers_minus1; ++i) {
if (sub_layer_profile_present_flag[i])
profile_tier(rbsp);
if (sub_layer_level_present_flag[i])
/* sub_layer_level_idc */
vl_rbsp_u(rbsp, 8);
}
return level_idc;
}
static void scaling_list_data(vid_dec_PrivateType *priv,
struct vl_rbsp *rbsp, struct pipe_h265_sps *sps)
{
unsigned size_id, matrix_id;
unsigned scaling_list_len[4] = { 16, 64, 64, 64 };
uint8_t scaling_list4x4[6][64] = { };
int i;
uint8_t (*scaling_list_data[4])[6][64] = {
(uint8_t (*)[6][64])scaling_list4x4,
(uint8_t (*)[6][64])sps->ScalingList8x8,
(uint8_t (*)[6][64])sps->ScalingList16x16,
(uint8_t (*)[6][64])sps->ScalingList32x32
};
uint8_t (*scaling_list_dc_coeff[2])[6] = {
(uint8_t (*)[6])sps->ScalingListDCCoeff16x16,
(uint8_t (*)[6])sps->ScalingListDCCoeff32x32
};
for (size_id = 0; size_id < 4; ++size_id) {
for (matrix_id = 0; matrix_id < ((size_id == 3) ? 2 : 6); ++matrix_id) {
bool scaling_list_pred_mode_flag = vl_rbsp_u(rbsp, 1);
if (!scaling_list_pred_mode_flag) {
/* scaling_list_pred_matrix_id_delta */;
unsigned matrix_id_with_delta = matrix_id - vl_rbsp_ue(rbsp);
if (matrix_id != matrix_id_with_delta) {
memcpy((*scaling_list_data[size_id])[matrix_id],
(*scaling_list_data[size_id])[matrix_id_with_delta],
scaling_list_len[size_id]);
if (size_id > 1)
(*scaling_list_dc_coeff[size_id - 2])[matrix_id] =
(*scaling_list_dc_coeff[size_id - 2])[matrix_id_with_delta];
} else {
const uint8_t *d;
if (size_id == 0)
memset((*scaling_list_data[0])[matrix_id], 16, 16);
else {
if (size_id < 3)
d = (matrix_id < 3) ? Default_8x8_Intra : Default_8x8_Inter;
else
d = (matrix_id < 1) ? Default_8x8_Intra : Default_8x8_Inter;
memcpy((*scaling_list_data[size_id])[matrix_id], d,
scaling_list_len[size_id]);
}
if (size_id > 1)
(*scaling_list_dc_coeff[size_id - 2])[matrix_id] = 16;
}
} else {
int next_coef = 8;
int coef_num = MIN2(64, (1 << (4 + (size_id << 1))));
if (size_id > 1) {
/* scaling_list_dc_coef_minus8 */
next_coef = vl_rbsp_se(rbsp) + 8;
(*scaling_list_dc_coeff[size_id - 2])[matrix_id] = next_coef;
}
for (i = 0; i < coef_num; ++i) {
/* scaling_list_delta_coef */
next_coef = (next_coef + vl_rbsp_se(rbsp) + 256) % 256;
(*scaling_list_data[size_id])[matrix_id][i] = next_coef;
}
}
}
}
for (i = 0; i < 6; ++i)
memcpy(sps->ScalingList4x4[i], scaling_list4x4[i], 16);
return;
}
static void st_ref_pic_set(vid_dec_PrivateType *priv, struct vl_rbsp *rbsp,
struct ref_pic_set *rps, struct pipe_h265_sps *sps,
unsigned idx)
{
bool inter_rps_pred_flag;
unsigned delta_idx_minus1;
int delta_poc;
int i;
inter_rps_pred_flag = (idx != 0) ? (vl_rbsp_u(rbsp, 1)) : false;
if (inter_rps_pred_flag) {
struct ref_pic_set *ref_rps;
unsigned sign, abs;
int delta_rps;
bool used;
int j;
if (idx == sps->num_short_term_ref_pic_sets)
delta_idx_minus1 = vl_rbsp_ue(rbsp);
else
delta_idx_minus1 = 0;
ref_rps = (struct ref_pic_set *)
priv->codec_data.h265.ref_pic_set_list + idx - (delta_idx_minus1 + 1);
/* delta_rps_sign */
sign = vl_rbsp_u(rbsp, 1);
/* abs_delta_rps_minus1 */
abs = vl_rbsp_ue(rbsp);
delta_rps = (1 - 2 * sign) * (abs + 1);
rps->num_neg_pics = 0;
rps->num_pos_pics = 0;
rps->num_pics = 0;
for(i = 0 ; i <= ref_rps->num_pics; ++i) {
/* used_by_curr_pic_flag */
if (!vl_rbsp_u(rbsp, 1))
/* use_delta_flag */
vl_rbsp_u(rbsp, 1);
else {
delta_poc = delta_rps +
((i < ref_rps->num_pics)? ref_rps->delta_poc[i] : 0);
rps->delta_poc[rps->num_pics] = delta_poc;
rps->used[rps->num_pics] = true;
if (delta_poc < 0)
rps->num_neg_pics++;
else
rps->num_pos_pics++;
rps->num_pics++;
}
}
rps->num_delta_poc = ref_rps->num_pics;
/* sort delta poc */
for (i = 1; i < rps->num_pics; ++i) {
delta_poc = rps->delta_poc[i];
used = rps->used[i];
for (j = i - 1; j >= 0; j--) {
if (delta_poc < rps->delta_poc[j]) {
rps->delta_poc[j + 1] = rps->delta_poc[j];
rps->used[j + 1] = rps->used[j];
rps->delta_poc[j] = delta_poc;
rps->used[j] = used;
}
}
}
for (i = 0 , j = rps->num_neg_pics - 1;
i < rps->num_neg_pics >> 1; i++, j--) {
delta_poc = rps->delta_poc[i];
used = rps->used[i];
rps->delta_poc[i] = rps->delta_poc[j];
rps->used[i] = rps->used[j];
rps->delta_poc[j] = delta_poc;
rps->used[j] = used;
}
} else {
/* num_negative_pics */
rps->num_neg_pics = vl_rbsp_ue(rbsp);
/* num_positive_pics */
rps->num_pos_pics = vl_rbsp_ue(rbsp);
rps->num_pics = rps->num_neg_pics + rps->num_pos_pics;
delta_poc = 0;
for(i = 0 ; i < rps->num_neg_pics; ++i) {
/* delta_poc_s0_minus1 */
delta_poc -= (vl_rbsp_ue(rbsp) + 1);
rps->delta_poc[i] = delta_poc;
/* used_by_curr_pic_s0_flag */
rps->used[i] = vl_rbsp_u(rbsp, 1);
}
delta_poc = 0;
for(i = rps->num_neg_pics; i < rps->num_pics; ++i) {
/* delta_poc_s1_minus1 */
delta_poc += (vl_rbsp_ue(rbsp) + 1);
rps->delta_poc[i] = delta_poc;
/* used_by_curr_pic_s1_flag */
rps->used[i] = vl_rbsp_u(rbsp, 1);
}
}
}
static struct pipe_h265_sps *seq_parameter_set_id(vid_dec_PrivateType *priv,
struct vl_rbsp *rbsp)
{
unsigned id = vl_rbsp_ue(rbsp);
if (id >= ARRAY_SIZE(priv->codec_data.h265.sps))
return NULL;
return &priv->codec_data.h265.sps[id];
}
static void seq_parameter_set(vid_dec_PrivateType *priv, struct vl_rbsp *rbsp)
{
struct pipe_h265_sps *sps;
int sps_max_sub_layers_minus1;
unsigned i;
/* sps_video_parameter_set_id */
vl_rbsp_u(rbsp, 4);
/* sps_max_sub_layers_minus1 */
sps_max_sub_layers_minus1 = vl_rbsp_u(rbsp, 3);
assert(sps_max_sub_layers_minus1 <= 6);
/* sps_temporal_id_nesting_flag */
vl_rbsp_u(rbsp, 1);
priv->codec_data.h265.level_idc =
profile_tier_level(rbsp, sps_max_sub_layers_minus1);
sps = seq_parameter_set_id(priv, rbsp);
if (!sps)
return;
memset(sps, 0, sizeof(*sps));
sps->chroma_format_idc = vl_rbsp_ue(rbsp);
if (sps->chroma_format_idc == 3)
sps->separate_colour_plane_flag = vl_rbsp_u(rbsp, 1);
priv->codec_data.h265.pic_width_in_luma_samples =
sps->pic_width_in_luma_samples = vl_rbsp_ue(rbsp);
priv->codec_data.h265.pic_height_in_luma_samples =
sps->pic_height_in_luma_samples = vl_rbsp_ue(rbsp);
/* conformance_window_flag */
if (vl_rbsp_u(rbsp, 1)) {
/* conf_win_left_offset */
vl_rbsp_ue(rbsp);
/* conf_win_right_offset */
vl_rbsp_ue(rbsp);
/* conf_win_top_offset */
vl_rbsp_ue(rbsp);
/* conf_win_bottom_offset */
vl_rbsp_ue(rbsp);
}
sps->bit_depth_luma_minus8 = vl_rbsp_ue(rbsp);
sps->bit_depth_chroma_minus8 = vl_rbsp_ue(rbsp);
sps->log2_max_pic_order_cnt_lsb_minus4 = vl_rbsp_ue(rbsp);
/* sps_sub_layer_ordering_info_present_flag */
i = vl_rbsp_u(rbsp, 1) ? 0 : sps_max_sub_layers_minus1;
for (; i <= sps_max_sub_layers_minus1; ++i) {
sps->sps_max_dec_pic_buffering_minus1 = vl_rbsp_ue(rbsp);
/* sps_max_num_reorder_pics */
vl_rbsp_ue(rbsp);
/* sps_max_latency_increase_plus */
vl_rbsp_ue(rbsp);
}
sps->log2_min_luma_coding_block_size_minus3 = vl_rbsp_ue(rbsp);
sps->log2_diff_max_min_luma_coding_block_size = vl_rbsp_ue(rbsp);
sps->log2_min_transform_block_size_minus2 = vl_rbsp_ue(rbsp);
sps->log2_diff_max_min_transform_block_size = vl_rbsp_ue(rbsp);
sps->max_transform_hierarchy_depth_inter = vl_rbsp_ue(rbsp);
sps->max_transform_hierarchy_depth_intra = vl_rbsp_ue(rbsp);
sps->scaling_list_enabled_flag = vl_rbsp_u(rbsp, 1);
if (sps->scaling_list_enabled_flag)
/* sps_scaling_list_data_present_flag */
if (vl_rbsp_u(rbsp, 1))
scaling_list_data(priv, rbsp, sps);
sps->amp_enabled_flag = vl_rbsp_u(rbsp, 1);
sps->sample_adaptive_offset_enabled_flag = vl_rbsp_u(rbsp, 1);
sps->pcm_enabled_flag = vl_rbsp_u(rbsp, 1);
if (sps->pcm_enabled_flag) {
sps->pcm_sample_bit_depth_luma_minus1 = vl_rbsp_u(rbsp, 4);
sps->pcm_sample_bit_depth_chroma_minus1 = vl_rbsp_u(rbsp, 4);
sps->log2_min_pcm_luma_coding_block_size_minus3 = vl_rbsp_ue(rbsp);
sps->log2_diff_max_min_pcm_luma_coding_block_size = vl_rbsp_ue(rbsp);
sps->pcm_loop_filter_disabled_flag = vl_rbsp_u(rbsp, 1);
}
sps->num_short_term_ref_pic_sets = vl_rbsp_ue(rbsp);
for (i = 0; i < sps->num_short_term_ref_pic_sets; ++i) {
struct ref_pic_set *rps;
rps = (struct ref_pic_set *)
priv->codec_data.h265.ref_pic_set_list + i;
st_ref_pic_set(priv, rbsp, rps, sps, i);
}
sps->long_term_ref_pics_present_flag = vl_rbsp_u(rbsp, 1);
if (sps->long_term_ref_pics_present_flag) {
sps->num_long_term_ref_pics_sps = vl_rbsp_ue(rbsp);
for (i = 0; i < sps->num_long_term_ref_pics_sps; ++i) {
/* lt_ref_pic_poc_lsb_sps */
vl_rbsp_u(rbsp, sps->log2_max_pic_order_cnt_lsb_minus4 + 4);
/* used_by_curr_pic_lt_sps_flag */
vl_rbsp_u(rbsp, 1);
}
}
sps->sps_temporal_mvp_enabled_flag = vl_rbsp_u(rbsp, 1);
sps->strong_intra_smoothing_enabled_flag = vl_rbsp_u(rbsp, 1);
}
static struct pipe_h265_pps *pic_parameter_set_id(vid_dec_PrivateType *priv,
struct vl_rbsp *rbsp)
{
unsigned id = vl_rbsp_ue(rbsp);
if (id >= ARRAY_SIZE(priv->codec_data.h265.pps))
return NULL;
return &priv->codec_data.h265.pps[id];
}
static void picture_parameter_set(vid_dec_PrivateType *priv,
struct vl_rbsp *rbsp)
{
struct pipe_h265_sps *sps;
struct pipe_h265_pps *pps;
int i;
pps = pic_parameter_set_id(priv, rbsp);
if (!pps)
return;
memset(pps, 0, sizeof(*pps));
sps = pps->sps = seq_parameter_set_id(priv, rbsp);
if (!sps)
return;
pps->dependent_slice_segments_enabled_flag = vl_rbsp_u(rbsp, 1);
pps->output_flag_present_flag = vl_rbsp_u(rbsp, 1);
pps->num_extra_slice_header_bits = vl_rbsp_u(rbsp, 3);
pps->sign_data_hiding_enabled_flag = vl_rbsp_u(rbsp, 1);
pps->cabac_init_present_flag = vl_rbsp_u(rbsp, 1);
pps->num_ref_idx_l0_default_active_minus1 = vl_rbsp_ue(rbsp);
pps->num_ref_idx_l1_default_active_minus1 = vl_rbsp_ue(rbsp);
pps->init_qp_minus26 = vl_rbsp_se(rbsp);
pps->constrained_intra_pred_flag = vl_rbsp_u(rbsp, 1);
pps->transform_skip_enabled_flag = vl_rbsp_u(rbsp, 1);
pps->cu_qp_delta_enabled_flag = vl_rbsp_u(rbsp, 1);
if (pps->cu_qp_delta_enabled_flag)
pps->diff_cu_qp_delta_depth = vl_rbsp_ue(rbsp);
pps->pps_cb_qp_offset = vl_rbsp_se(rbsp);
pps->pps_cr_qp_offset = vl_rbsp_se(rbsp);
pps->pps_slice_chroma_qp_offsets_present_flag = vl_rbsp_u(rbsp, 1);
pps->weighted_pred_flag = vl_rbsp_u(rbsp, 1);
pps->weighted_bipred_flag = vl_rbsp_u(rbsp, 1);
pps->transquant_bypass_enabled_flag = vl_rbsp_u(rbsp, 1);
pps->tiles_enabled_flag = vl_rbsp_u(rbsp, 1);
pps->entropy_coding_sync_enabled_flag = vl_rbsp_u(rbsp, 1);
if (pps->tiles_enabled_flag) {
pps->num_tile_columns_minus1 = vl_rbsp_ue(rbsp);
pps->num_tile_rows_minus1 = vl_rbsp_ue(rbsp);
pps->uniform_spacing_flag = vl_rbsp_u(rbsp, 1);
if (!pps->uniform_spacing_flag) {
for (i = 0; i < pps->num_tile_columns_minus1; ++i)
pps->column_width_minus1[i] = vl_rbsp_ue(rbsp);
for (i = 0; i < pps->num_tile_rows_minus1; ++i)
pps->row_height_minus1[i] = vl_rbsp_ue(rbsp);
}
if (!pps->num_tile_columns_minus1 || !pps->num_tile_rows_minus1)
pps->loop_filter_across_tiles_enabled_flag = vl_rbsp_u(rbsp, 1);
}
pps->pps_loop_filter_across_slices_enabled_flag = vl_rbsp_u(rbsp, 1);
pps->deblocking_filter_control_present_flag = vl_rbsp_u(rbsp, 1);
if (pps->deblocking_filter_control_present_flag) {
pps->deblocking_filter_override_enabled_flag = vl_rbsp_u(rbsp, 1);
pps->pps_deblocking_filter_disabled_flag = vl_rbsp_u(rbsp, 1);
if (!pps->pps_deblocking_filter_disabled_flag) {
pps->pps_beta_offset_div2 = vl_rbsp_se(rbsp);
pps->pps_tc_offset_div2 = vl_rbsp_se(rbsp);
}
}
/* pps_scaling_list_data_present_flag */
if (vl_rbsp_u(rbsp, 1))
scaling_list_data(priv, rbsp, sps);
pps->lists_modification_present_flag = vl_rbsp_u(rbsp, 1);
pps->log2_parallel_merge_level_minus2 = vl_rbsp_ue(rbsp);
pps->slice_segment_header_extension_present_flag = vl_rbsp_u(rbsp, 1);
}
static void vid_dec_h265_BeginFrame(vid_dec_PrivateType *priv)
{
if (priv->frame_started)
return;
if (!priv->codec) {
struct pipe_video_codec templat = {};
omx_base_video_PortType *port = (omx_base_video_PortType *)
priv->ports[OMX_BASE_FILTER_INPUTPORT_INDEX];
templat.profile = priv->profile;
templat.entrypoint = PIPE_VIDEO_ENTRYPOINT_BITSTREAM;
templat.chroma_format = PIPE_VIDEO_CHROMA_FORMAT_420;
templat.expect_chunked_decode = true;
templat.width = priv->codec_data.h265.pic_width_in_luma_samples;
templat.height = priv->codec_data.h265.pic_height_in_luma_samples;
templat.level = priv->codec_data.h265.level_idc;
priv->codec = priv->pipe->create_video_codec(priv->pipe, &templat);
/* disable transcode tunnel if video size is different from coded size */
if (priv->codec_data.h265.pic_width_in_luma_samples !=
port->sPortParam.format.video.nFrameWidth ||
priv->codec_data.h265.pic_height_in_luma_samples !=
port->sPortParam.format.video.nFrameHeight)
priv->disable_tunnel = true;
}
vid_dec_NeedTarget(priv);
if (priv->first_buf_in_frame)
priv->timestamp = priv->timestamps[0];
priv->first_buf_in_frame = false;
priv->codec->begin_frame(priv->codec, priv->target, &priv->picture.base);
priv->frame_started = true;
}
static struct pipe_video_buffer *vid_dec_h265_Flush(vid_dec_PrivateType *priv,
OMX_TICKS *timestamp)
{
struct dpb_list *entry, *result = NULL;
struct pipe_video_buffer *buf;
/* search for the lowest poc and break on zeros */
LIST_FOR_EACH_ENTRY(entry, &priv->codec_data.h265.dpb_list, list) {
if (result && entry->poc == 0)
break;
if (!result || entry->poc < result->poc)
result = entry;
}
if (!result)
return NULL;
buf = result->buffer;
if (timestamp)
*timestamp = result->timestamp;
--priv->codec_data.h265.dpb_num;
LIST_DEL(&result->list);
FREE(result);
return buf;
}
static void vid_dec_h265_EndFrame(vid_dec_PrivateType *priv)
{
struct dpb_list *entry = NULL;
struct pipe_video_buffer *tmp;
struct ref_pic_set *rps;
int i;
OMX_TICKS timestamp;
if (!priv->frame_started)
return;
priv->picture.h265.NumPocStCurrBefore = 0;
priv->picture.h265.NumPocStCurrAfter = 0;
memset(priv->picture.h265.RefPicSetStCurrBefore, 0, 8);
memset(priv->picture.h265.RefPicSetStCurrAfter, 0, 8);
for (i = 0; i < MAX_NUM_REF_PICS; ++i) {
priv->picture.h265.ref[i] = NULL;
priv->picture.h265.PicOrderCntVal[i] = 0;
}
rps = priv->codec_data.h265.rps;
if (rps) {
unsigned bf = 0, af = 0;
priv->picture.h265.NumDeltaPocsOfRefRpsIdx = rps->num_delta_poc;
for (i = 0; i < rps->num_pics; ++i) {
priv->picture.h265.PicOrderCntVal[i] =
rps->delta_poc[i] + get_poc(priv);
LIST_FOR_EACH_ENTRY(entry, &priv->codec_data.h265.dpb_list, list) {
if (entry->poc == priv->picture.h265.PicOrderCntVal[i]) {
priv->picture.h265.ref[i] = entry->buffer;
break;
}
}
if (rps->used[i]) {
if (i < rps->num_neg_pics) {
priv->picture.h265.NumPocStCurrBefore++;
priv->picture.h265.RefPicSetStCurrBefore[bf++] = i;
} else {
priv->picture.h265.NumPocStCurrAfter++;
priv->picture.h265.RefPicSetStCurrAfter[af++] = i;
}
}
}
}
priv->codec->end_frame(priv->codec, priv->target, &priv->picture.base);
priv->frame_started = false;
/* add the decoded picture to the dpb list */
entry = CALLOC_STRUCT(dpb_list);
if (!entry)
return;
priv->first_buf_in_frame = true;
entry->buffer = priv->target;
entry->timestamp = priv->timestamp;
entry->poc = get_poc(priv);
LIST_ADDTAIL(&entry->list, &priv->codec_data.h265.dpb_list);
++priv->codec_data.h265.dpb_num;
priv->target = NULL;
if (priv->codec_data.h265.dpb_num <= DPB_MAX_SIZE)
return;
tmp = priv->in_buffers[0]->pInputPortPrivate;
priv->in_buffers[0]->pInputPortPrivate = vid_dec_h265_Flush(priv, ×tamp);
priv->in_buffers[0]->nTimeStamp = timestamp;
priv->target = tmp;
priv->frame_finished = priv->in_buffers[0]->pInputPortPrivate != NULL;
if (priv->frame_finished &&
(priv->in_buffers[0]->nFlags & OMX_BUFFERFLAG_EOS))
FREE(priv->codec_data.h265.ref_pic_set_list);
}
static void slice_header(vid_dec_PrivateType *priv, struct vl_rbsp *rbsp,
unsigned nal_unit_type)
{
struct pipe_h265_pps *pps;
struct pipe_h265_sps *sps;
bool first_slice_segment_in_pic_flag;
bool dependent_slice_segment_flag = false;
struct ref_pic_set *rps;
unsigned poc_lsb, poc_msb, slice_prev_poc;
unsigned max_poc_lsb, prev_poc_lsb, prev_poc_msb;
unsigned num_st_rps;
int i;
if (priv->picture.h265.IDRPicFlag != is_idr_picture(nal_unit_type))
vid_dec_h265_EndFrame(priv);
priv->picture.h265.IDRPicFlag = is_idr_picture(nal_unit_type);
first_slice_segment_in_pic_flag = vl_rbsp_u(rbsp, 1);
if (is_rap_picture(nal_unit_type))
/* no_output_of_prior_pics_flag */
vl_rbsp_u(rbsp, 1);
pps = pic_parameter_set_id(priv, rbsp);
if (!pps)
return;
sps = pps->sps;
if (!sps)
return;
if (pps != priv->picture.h265.pps)
vid_dec_h265_EndFrame(priv);
priv->picture.h265.pps = pps;
if (priv->picture.h265.RAPPicFlag != is_rap_picture(nal_unit_type))
vid_dec_h265_EndFrame(priv);
priv->picture.h265.RAPPicFlag = is_rap_picture(nal_unit_type);
num_st_rps = sps->num_short_term_ref_pic_sets;
if (priv->picture.h265.CurrRpsIdx != num_st_rps)
vid_dec_h265_EndFrame(priv);
priv->picture.h265.CurrRpsIdx = num_st_rps;
if (!first_slice_segment_in_pic_flag) {
int size, num;
int bits_slice_segment_address = 0;
if (pps->dependent_slice_segments_enabled_flag)
dependent_slice_segment_flag = vl_rbsp_u(rbsp, 1);
size = 1 << (sps->log2_min_luma_coding_block_size_minus3 + 3 +
sps->log2_diff_max_min_luma_coding_block_size);
num = ((sps->pic_width_in_luma_samples + size - 1) / size) *
((sps->pic_height_in_luma_samples + size - 1) / size);
while (num > (1 << bits_slice_segment_address))
bits_slice_segment_address++;
/* slice_segment_address */
vl_rbsp_u(rbsp, bits_slice_segment_address);
}
if (dependent_slice_segment_flag)
return;
for (i = 0; i < pps->num_extra_slice_header_bits; ++i)
/* slice_reserved_flag */
vl_rbsp_u(rbsp, 1);
/* slice_type */
vl_rbsp_ue(rbsp);
if (pps->output_flag_present_flag)
/* pic output flag */
vl_rbsp_u(rbsp, 1);
if (sps->separate_colour_plane_flag)
/* colour_plane_id */
vl_rbsp_u(rbsp, 2);
if (is_idr_picture(nal_unit_type)) {
set_poc(priv, nal_unit_type, 0);
return;
}
/* slice_pic_order_cnt_lsb */
poc_lsb =
vl_rbsp_u(rbsp, sps->log2_max_pic_order_cnt_lsb_minus4 + 4);
slice_prev_poc = (int)priv->codec_data.h265.slice_prev_poc;
max_poc_lsb = 1 << (sps->log2_max_pic_order_cnt_lsb_minus4 + 4);
prev_poc_lsb = slice_prev_poc & (max_poc_lsb - 1);
prev_poc_msb = slice_prev_poc - prev_poc_lsb;
if ((poc_lsb < prev_poc_lsb) &&
((prev_poc_lsb - poc_lsb ) >= (max_poc_lsb / 2)))
poc_msb = prev_poc_msb + max_poc_lsb;
else if ((poc_lsb > prev_poc_lsb ) &&
((poc_lsb - prev_poc_lsb) > (max_poc_lsb / 2)))
poc_msb = prev_poc_msb - max_poc_lsb;
else
poc_msb = prev_poc_msb;
if (is_bla_picture(nal_unit_type))
poc_msb = 0;
if (get_poc(priv) != poc_msb + poc_lsb)
vid_dec_h265_EndFrame(priv);
set_poc(priv, nal_unit_type, (poc_msb + poc_lsb));
/* short_term_ref_pic_set_sps_flag */
if (!vl_rbsp_u(rbsp, 1)) {
rps = (struct ref_pic_set *)
priv->codec_data.h265.ref_pic_set_list + num_st_rps;
st_ref_pic_set(priv, rbsp, rps, sps, num_st_rps);
} else if (num_st_rps > 1) {
int num_bits = 0;
unsigned idx;
while ((1 << num_bits) < num_st_rps)
num_bits++;
if (num_bits > 0)
/* short_term_ref_pic_set_idx */
idx = vl_rbsp_u(rbsp, num_bits);
else
idx = 0;
rps = (struct ref_pic_set *)
priv->codec_data.h265.ref_pic_set_list + idx;
} else
rps = (struct ref_pic_set *)
priv->codec_data.h265.ref_pic_set_list;
if (is_bla_picture(nal_unit_type)) {
rps->num_neg_pics = 0;
rps->num_pos_pics = 0;
rps->num_pics = 0;
}
priv->codec_data.h265.rps = rps;
return;
}
static void vid_dec_h265_Decode(vid_dec_PrivateType *priv,
struct vl_vlc *vlc,
unsigned min_bits_left)
{
unsigned nal_unit_type;
unsigned nuh_layer_id;
unsigned nuh_temporal_id_plus1;
if (!vl_vlc_search_byte(vlc, vl_vlc_bits_left(vlc) - min_bits_left, 0x00))
return;
if (vl_vlc_peekbits(vlc, 24) != 0x000001) {
vl_vlc_eatbits(vlc, 8);
return;
}
if (priv->slice) {
unsigned bytes = priv->bytes_left - (vl_vlc_bits_left(vlc) / 8);
priv->codec->decode_bitstream(priv->codec, priv->target,
&priv->picture.base, 1,
&priv->slice, &bytes);
priv->slice = NULL;
}
vl_vlc_eatbits(vlc, 24);
/* forbidden_zero_bit */
vl_vlc_eatbits(vlc, 1);
if (vl_vlc_valid_bits(vlc) < 15)
vl_vlc_fillbits(vlc);
nal_unit_type = vl_vlc_get_uimsbf(vlc, 6);
/* nuh_layer_id */
nuh_layer_id = vl_vlc_get_uimsbf(vlc, 6);
/* nuh_temporal_id_plus1 */
nuh_temporal_id_plus1 = vl_vlc_get_uimsbf(vlc, 3);
priv->codec_data.h265.temporal_id = nuh_temporal_id_plus1 - 1;
if (!is_slice_picture(nal_unit_type))
vid_dec_h265_EndFrame(priv);
if (nal_unit_type == NAL_UNIT_TYPE_SPS) {
struct vl_rbsp rbsp;
vl_rbsp_init(&rbsp, vlc, ~0);
seq_parameter_set(priv, &rbsp);
} else if (nal_unit_type == NAL_UNIT_TYPE_PPS) {
struct vl_rbsp rbsp;
vl_rbsp_init(&rbsp, vlc, ~0);
picture_parameter_set(priv, &rbsp);
} else if (is_slice_picture(nal_unit_type)) {
unsigned bits = vl_vlc_valid_bits(vlc);
unsigned bytes = bits / 8 + 5;
struct vl_rbsp rbsp;
uint8_t buf[9];
const void *ptr = buf;
unsigned i;
buf[0] = 0x0;
buf[1] = 0x0;
buf[2] = 0x1;
buf[3] = nal_unit_type << 1 | nuh_layer_id >> 5;
buf[4] = nuh_layer_id << 3 | nuh_temporal_id_plus1;
for (i = 5; i < bytes; ++i)
buf[i] = vl_vlc_peekbits(vlc, bits) >> ((bytes - i - 1) * 8);
priv->bytes_left = (vl_vlc_bits_left(vlc) - bits) / 8;
priv->slice = vlc->data;
vl_rbsp_init(&rbsp, vlc, 128);
slice_header(priv, &rbsp, nal_unit_type);
vid_dec_h265_BeginFrame(priv);
priv->codec->decode_bitstream(priv->codec, priv->target,
&priv->picture.base, 1,
&ptr, &bytes);
}
/* resync to byte boundary */
vl_vlc_eatbits(vlc, vl_vlc_valid_bits(vlc) % 8);
}
void vid_dec_h265_Init(vid_dec_PrivateType *priv)
{
priv->picture.base.profile = PIPE_VIDEO_PROFILE_HEVC_MAIN;
LIST_INITHEAD(&priv->codec_data.h265.dpb_list);
priv->codec_data.h265.ref_pic_set_list = (struct ref_pic_set *)
CALLOC(MAX_NUM_REF_PICS, sizeof(struct ref_pic_set));
priv->Decode = vid_dec_h265_Decode;
priv->EndFrame = vid_dec_h265_EndFrame;
priv->Flush = vid_dec_h265_Flush;
priv->first_buf_in_frame = true;
}