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authorMichael Tretter <m.tretter@pengutronix.de>2021-09-08 14:03:54 +0100
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>2021-10-20 16:01:23 +0100
commit42fd280628bd0a78f72b49916e8ed2dfabb63a27 (patch)
tree6f36ca025265f238d587ce890d8da537eacd2801 /drivers/media
parent0317c05fa15b64fe10b832eeab2354cf1b8ec831 (diff)
media: allegro: nal-hevc: implement generator for vui
The NAL unit generator for HEVC does not support the generation of vui parameters. Implement it to allow drivers to set the vui parameters in the coded video stream. Signed-off-by: Michael Tretter <m.tretter@pengutronix.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/platform/allegro-dvt/nal-hevc.c132
1 files changed, 131 insertions, 1 deletions
diff --git a/drivers/media/platform/allegro-dvt/nal-hevc.c b/drivers/media/platform/allegro-dvt/nal-hevc.c
index 0999a2bdc812..9cdf2756e0a3 100644
--- a/drivers/media/platform/allegro-dvt/nal-hevc.c
+++ b/drivers/media/platform/allegro-dvt/nal-hevc.c
@@ -207,6 +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;
@@ -275,7 +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) {