diff options
Diffstat (limited to 'drivers/media/platform/allegro-dvt/nal-hevc.c')
| -rw-r--r-- | drivers/media/platform/allegro-dvt/nal-hevc.c | 202 |
1 files changed, 131 insertions, 71 deletions
diff --git a/drivers/media/platform/allegro-dvt/nal-hevc.c b/drivers/media/platform/allegro-dvt/nal-hevc.c index 15a352e45831..9cdf2756e0a3 100644 --- a/drivers/media/platform/allegro-dvt/nal-hevc.c +++ b/drivers/media/platform/allegro-dvt/nal-hevc.c @@ -35,76 +35,6 @@ enum nal_unit_type { FD_NUT = 38, }; -int nal_hevc_profile_from_v4l2(enum v4l2_mpeg_video_hevc_profile profile) -{ - switch (profile) { - case V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN: - return 1; - case V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN_10: - return 2; - case V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN_STILL_PICTURE: - return 3; - default: - return -EINVAL; - } -} -EXPORT_SYMBOL_GPL(nal_hevc_profile_from_v4l2); - -int nal_hevc_tier_from_v4l2(enum v4l2_mpeg_video_hevc_tier tier) -{ - switch (tier) { - case V4L2_MPEG_VIDEO_HEVC_TIER_MAIN: - return 0; - case V4L2_MPEG_VIDEO_HEVC_TIER_HIGH: - return 1; - default: - return -EINVAL; - } -} -EXPORT_SYMBOL_GPL(nal_hevc_tier_from_v4l2); - -int nal_hevc_level_from_v4l2(enum v4l2_mpeg_video_hevc_level level) -{ - /* - * T-Rec-H.265 p. 280: general_level_idc and sub_layer_level_idc[ i ] - * shall be set equal to a value of 30 times the level number - * specified in Table A.6. - */ - int factor = 30 / 10; - - switch (level) { - case V4L2_MPEG_VIDEO_HEVC_LEVEL_1: - return factor * 10; - case V4L2_MPEG_VIDEO_HEVC_LEVEL_2: - return factor * 20; - case V4L2_MPEG_VIDEO_HEVC_LEVEL_2_1: - return factor * 21; - case V4L2_MPEG_VIDEO_HEVC_LEVEL_3: - return factor * 30; - case V4L2_MPEG_VIDEO_HEVC_LEVEL_3_1: - return factor * 31; - case V4L2_MPEG_VIDEO_HEVC_LEVEL_4: - return factor * 40; - case V4L2_MPEG_VIDEO_HEVC_LEVEL_4_1: - return factor * 41; - case V4L2_MPEG_VIDEO_HEVC_LEVEL_5: - return factor * 50; - case V4L2_MPEG_VIDEO_HEVC_LEVEL_5_1: - return factor * 51; - case V4L2_MPEG_VIDEO_HEVC_LEVEL_5_2: - return factor * 52; - case V4L2_MPEG_VIDEO_HEVC_LEVEL_6: - return factor * 60; - case V4L2_MPEG_VIDEO_HEVC_LEVEL_6_1: - return factor * 61; - case V4L2_MPEG_VIDEO_HEVC_LEVEL_6_2: - return factor * 62; - default: - return -EINVAL; - } -} -EXPORT_SYMBOL_GPL(nal_hevc_level_from_v4l2); - static void nal_hevc_write_start_code_prefix(struct rbsp *rbsp) { u8 *p = rbsp->data + DIV_ROUND_UP(rbsp->pos, 8); @@ -277,6 +207,136 @@ static void nal_hevc_rbsp_vps(struct rbsp *rbsp, struct nal_hevc_vps *vps) rbsp_unsupported(rbsp); } +static void nal_hevc_rbsp_sub_layer_hrd_parameters(struct rbsp *rbsp, + struct nal_hevc_sub_layer_hrd_parameters *hrd) +{ + unsigned int i; + unsigned int cpb_cnt = 1; + + for (i = 0; i < cpb_cnt; i++) { + rbsp_uev(rbsp, &hrd->bit_rate_value_minus1[i]); + rbsp_uev(rbsp, &hrd->cpb_size_value_minus1[i]); + rbsp_bit(rbsp, &hrd->cbr_flag[i]); + } +} + +static void nal_hevc_rbsp_hrd_parameters(struct rbsp *rbsp, + struct nal_hevc_hrd_parameters *hrd) +{ + unsigned int i; + unsigned int max_num_sub_layers_minus_1 = 0; + + rbsp_bit(rbsp, &hrd->nal_hrd_parameters_present_flag); + rbsp_bit(rbsp, &hrd->vcl_hrd_parameters_present_flag); + if (hrd->nal_hrd_parameters_present_flag || hrd->vcl_hrd_parameters_present_flag) { + rbsp_bit(rbsp, &hrd->sub_pic_hrd_params_present_flag); + if (hrd->sub_pic_hrd_params_present_flag) { + rbsp_bits(rbsp, 8, &hrd->tick_divisor_minus2); + rbsp_bits(rbsp, 5, &hrd->du_cpb_removal_delay_increment_length_minus1); + rbsp_bit(rbsp, &hrd->sub_pic_cpb_params_in_pic_timing_sei_flag); + rbsp_bits(rbsp, 5, &hrd->dpb_output_delay_du_length_minus1); + } + rbsp_bits(rbsp, 4, &hrd->bit_rate_scale); + rbsp_bits(rbsp, 4, &hrd->cpb_size_scale); + if (hrd->sub_pic_hrd_params_present_flag) + rbsp_bits(rbsp, 4, &hrd->cpb_size_du_scale); + rbsp_bits(rbsp, 5, &hrd->initial_cpb_removal_delay_length_minus1); + rbsp_bits(rbsp, 5, &hrd->au_cpb_removal_delay_length_minus1); + rbsp_bits(rbsp, 5, &hrd->dpb_output_delay_length_minus1); + } + for (i = 0; i <= max_num_sub_layers_minus_1; i++) { + rbsp_bit(rbsp, &hrd->fixed_pic_rate_general_flag[i]); + if (!hrd->fixed_pic_rate_general_flag[i]) + rbsp_bit(rbsp, &hrd->fixed_pic_rate_within_cvs_flag[i]); + if (hrd->fixed_pic_rate_within_cvs_flag[i]) + rbsp_uev(rbsp, &hrd->elemental_duration_in_tc_minus1[i]); + else + rbsp_bit(rbsp, &hrd->low_delay_hrd_flag[i]); + if (!hrd->low_delay_hrd_flag[i]) + rbsp_uev(rbsp, &hrd->cpb_cnt_minus1[i]); + if (hrd->nal_hrd_parameters_present_flag) + nal_hevc_rbsp_sub_layer_hrd_parameters(rbsp, &hrd->vcl_hrd[i]); + if (hrd->vcl_hrd_parameters_present_flag) + nal_hevc_rbsp_sub_layer_hrd_parameters(rbsp, &hrd->vcl_hrd[i]); + } +} + +static void nal_hevc_rbsp_vui_parameters(struct rbsp *rbsp, + struct nal_hevc_vui_parameters *vui) +{ + if (!vui) { + rbsp->error = -EINVAL; + return; + } + + rbsp_bit(rbsp, &vui->aspect_ratio_info_present_flag); + if (vui->aspect_ratio_info_present_flag) { + rbsp_bits(rbsp, 8, &vui->aspect_ratio_idc); + if (vui->aspect_ratio_idc == 255) { + rbsp_bits(rbsp, 16, &vui->sar_width); + rbsp_bits(rbsp, 16, &vui->sar_height); + } + } + + rbsp_bit(rbsp, &vui->overscan_info_present_flag); + if (vui->overscan_info_present_flag) + rbsp_bit(rbsp, &vui->overscan_appropriate_flag); + + rbsp_bit(rbsp, &vui->video_signal_type_present_flag); + if (vui->video_signal_type_present_flag) { + rbsp_bits(rbsp, 3, &vui->video_format); + rbsp_bit(rbsp, &vui->video_full_range_flag); + + rbsp_bit(rbsp, &vui->colour_description_present_flag); + if (vui->colour_description_present_flag) { + rbsp_bits(rbsp, 8, &vui->colour_primaries); + rbsp_bits(rbsp, 8, &vui->transfer_characteristics); + rbsp_bits(rbsp, 8, &vui->matrix_coeffs); + } + } + + rbsp_bit(rbsp, &vui->chroma_loc_info_present_flag); + if (vui->chroma_loc_info_present_flag) { + rbsp_uev(rbsp, &vui->chroma_sample_loc_type_top_field); + rbsp_uev(rbsp, &vui->chroma_sample_loc_type_bottom_field); + } + + rbsp_bit(rbsp, &vui->neutral_chroma_indication_flag); + rbsp_bit(rbsp, &vui->field_seq_flag); + rbsp_bit(rbsp, &vui->frame_field_info_present_flag); + rbsp_bit(rbsp, &vui->default_display_window_flag); + if (vui->default_display_window_flag) { + rbsp_uev(rbsp, &vui->def_disp_win_left_offset); + rbsp_uev(rbsp, &vui->def_disp_win_right_offset); + rbsp_uev(rbsp, &vui->def_disp_win_top_offset); + rbsp_uev(rbsp, &vui->def_disp_win_bottom_offset); + } + + rbsp_bit(rbsp, &vui->vui_timing_info_present_flag); + if (vui->vui_timing_info_present_flag) { + rbsp_bits(rbsp, 32, &vui->vui_num_units_in_tick); + rbsp_bits(rbsp, 32, &vui->vui_time_scale); + rbsp_bit(rbsp, &vui->vui_poc_proportional_to_timing_flag); + if (vui->vui_poc_proportional_to_timing_flag) + rbsp_uev(rbsp, &vui->vui_num_ticks_poc_diff_one_minus1); + rbsp_bit(rbsp, &vui->vui_hrd_parameters_present_flag); + if (vui->vui_hrd_parameters_present_flag) + nal_hevc_rbsp_hrd_parameters(rbsp, &vui->nal_hrd_parameters); + } + + rbsp_bit(rbsp, &vui->bitstream_restriction_flag); + if (vui->bitstream_restriction_flag) { + rbsp_bit(rbsp, &vui->tiles_fixed_structure_flag); + rbsp_bit(rbsp, &vui->motion_vectors_over_pic_boundaries_flag); + rbsp_bit(rbsp, &vui->restricted_ref_pic_lists_flag); + rbsp_uev(rbsp, &vui->min_spatial_segmentation_idc); + rbsp_uev(rbsp, &vui->max_bytes_per_pic_denom); + rbsp_uev(rbsp, &vui->max_bits_per_min_cu_denom); + rbsp_uev(rbsp, &vui->log2_max_mv_length_horizontal); + rbsp_uev(rbsp, &vui->log2_max_mv_length_vertical); + } +} + static void nal_hevc_rbsp_sps(struct rbsp *rbsp, struct nal_hevc_sps *sps) { unsigned int i; @@ -345,7 +405,7 @@ static void nal_hevc_rbsp_sps(struct rbsp *rbsp, struct nal_hevc_sps *sps) rbsp_bit(rbsp, &sps->strong_intra_smoothing_enabled_flag); rbsp_bit(rbsp, &sps->vui_parameters_present_flag); if (sps->vui_parameters_present_flag) - rbsp_unsupported(rbsp); + nal_hevc_rbsp_vui_parameters(rbsp, &sps->vui); rbsp_bit(rbsp, &sps->extension_present_flag); if (sps->extension_present_flag) { |