--- /dev/null
+/* GStreamer
+ * Copyright (C) 2020 Nicolas Dufresne <nicolas.dufresne@collabora.com>
+ * Copyright (C) 2020 Safran Passenger Innovations LLC
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "gstv4l2codecallocator.h"
+#include "gstv4l2codech265dec.h"
+#include "gstv4l2codecpool.h"
+#include "gstv4l2format.h"
+#include "linux/v4l2-controls.h"
+
+#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
+
+#define V4L2_MIN_KERNEL_VER_MAJOR 5
+#define V4L2_MIN_KERNEL_VER_MINOR 18
+#define V4L2_MIN_KERNEL_VERSION KERNEL_VERSION(V4L2_MIN_KERNEL_VER_MAJOR, V4L2_MIN_KERNEL_VER_MINOR, 0)
+
+GST_DEBUG_CATEGORY_STATIC (v4l2_h265dec_debug);
+#define GST_CAT_DEFAULT v4l2_h265dec_debug
+
+enum
+{
+ PROP_0,
+ PROP_LAST = PROP_0
+};
+
+static GstStaticPadTemplate sink_template =
+GST_STATIC_PAD_TEMPLATE (GST_VIDEO_DECODER_SINK_NAME,
+ GST_PAD_SINK, GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("video/x-h265, "
+ "stream-format=(string) { hvc1, hev1, byte-stream }, "
+ "alignment=(string) au")
+ );
+
+static GstStaticPadTemplate src_template =
+GST_STATIC_PAD_TEMPLATE (GST_VIDEO_DECODER_SRC_NAME,
+ GST_PAD_SRC, GST_PAD_ALWAYS,
+ GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE (GST_V4L2_DEFAULT_VIDEO_FORMATS)));
+
+struct _GstV4l2CodecH265Dec
+{
+ GstH265Decoder parent;
+ GstV4l2Decoder *decoder;
+ GstVideoCodecState *output_state;
+ GstVideoInfo vinfo;
+ gint display_width;
+ gint display_height;
+ gint coded_width;
+ gint coded_height;
+ guint bitdepth;
+ guint chroma_format_idc;
+ guint num_slices;
+ gboolean first_slice;
+
+ GstV4l2CodecAllocator *sink_allocator;
+ GstV4l2CodecAllocator *src_allocator;
+ GstV4l2CodecPool *src_pool;
+ gint min_pool_size;
+ gboolean has_videometa;
+ gboolean need_negotiation;
+ gboolean copy_frames;
+ gboolean need_sequence;
+
+ struct v4l2_ctrl_hevc_sps sps;
+ struct v4l2_ctrl_hevc_pps pps;
+ struct v4l2_ctrl_hevc_scaling_matrix scaling_matrix;
+ struct v4l2_ctrl_hevc_decode_params decode_params;
+ GArray *slice_params;
+ GArray *entry_point_offsets;
+
+ enum v4l2_stateless_hevc_decode_mode decode_mode;
+ enum v4l2_stateless_hevc_start_code start_code;
+
+ GstMemory *bitstream;
+ GstMapInfo bitstream_map;
+
+ gboolean support_scaling_matrix;
+ gboolean support_slice_parameters;
+ gboolean support_entry_point_offsets;
+
+ GstVideoConverter *convert;
+ gboolean need_crop;
+ gint crop_rect_width, crop_rect_height;
+ gint crop_rect_x, crop_rect_y;
+};
+
+G_DEFINE_ABSTRACT_TYPE (GstV4l2CodecH265Dec, gst_v4l2_codec_h265_dec,
+ GST_TYPE_H265_DECODER);
+
+#define parent_class gst_v4l2_codec_h265_dec_parent_class
+
+static gboolean
+is_frame_based (GstV4l2CodecH265Dec * self)
+{
+ return (self->decode_mode ==
+ V4L2_STATELESS_HEVC_DECODE_MODE_FRAME_BASED) &&
+ !self->support_slice_parameters;
+}
+
+static gboolean
+is_slice_based (GstV4l2CodecH265Dec * self)
+{
+ return self->decode_mode == V4L2_STATELESS_HEVC_DECODE_MODE_SLICE_BASED;
+}
+
+static gboolean
+is_frame_based_with_slices (GstV4l2CodecH265Dec * self)
+{
+ return (self->decode_mode ==
+ V4L2_STATELESS_HEVC_DECODE_MODE_FRAME_BASED) &&
+ self->support_slice_parameters;
+}
+
+static gboolean
+needs_start_codes (GstV4l2CodecH265Dec * self)
+{
+ return self->start_code == V4L2_STATELESS_HEVC_START_CODE_ANNEX_B;
+}
+
+
+static gboolean
+gst_v4l2_codec_h265_dec_open (GstVideoDecoder * decoder)
+{
+ GstV4l2CodecH265Dec *self = GST_V4L2_CODEC_H265_DEC (decoder);
+ /* *INDENT-OFF* */
+ struct v4l2_ext_control control[] = {
+ {
+ .id = V4L2_CID_STATELESS_HEVC_DECODE_MODE,
+ },
+ {
+ .id = V4L2_CID_STATELESS_HEVC_START_CODE,
+ },
+ };
+ struct v4l2_ext_control scaling_matrix[] = {
+ {
+ .id = V4L2_CID_STATELESS_HEVC_SCALING_MATRIX,
+ .ptr = &self->scaling_matrix,
+ .size = sizeof (self->scaling_matrix),
+ },
+ };
+ /* *INDENT-ON* */
+
+ if (!gst_v4l2_decoder_open (self->decoder)) {
+ GST_ELEMENT_ERROR (self, RESOURCE, OPEN_READ_WRITE,
+ ("Failed to open H265 decoder"),
+ ("gst_v4l2_decoder_open() failed: %s", g_strerror (errno)));
+ return FALSE;
+ }
+
+ if (!gst_v4l2_decoder_get_controls (self->decoder, control,
+ G_N_ELEMENTS (control))) {
+ GST_ELEMENT_ERROR (self, RESOURCE, OPEN_READ_WRITE,
+ ("Driver did not report framing and start code method."),
+ ("gst_v4l2_decoder_get_controls() failed: %s", g_strerror (errno)));
+ return FALSE;
+ }
+
+ self->support_scaling_matrix =
+ gst_v4l2_decoder_get_controls (self->decoder, scaling_matrix,
+ G_N_ELEMENTS (scaling_matrix));
+
+ self->support_slice_parameters =
+ gst_v4l2_decoder_query_control_size (self->decoder,
+ V4L2_CID_STATELESS_HEVC_SLICE_PARAMS, NULL);
+
+ self->support_entry_point_offsets =
+ gst_v4l2_decoder_query_control_size (self->decoder,
+ V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSETS, NULL);
+
+ self->decode_mode = control[0].value;
+ self->start_code = control[1].value;
+
+ GST_INFO_OBJECT (self, "Opened H265 %s decoder %s",
+ is_frame_based (self) ? "frame based" : is_slice_based (self) ?
+ "slice based" : "frame based with slices",
+ needs_start_codes (self) ? "using start-codes" : "without start-codes");
+ gst_h265_decoder_set_process_ref_pic_lists (GST_H265_DECODER (self),
+ is_slice_based (self) || is_frame_based_with_slices (self));
+
+ return TRUE;
+}
+
+static gboolean
+gst_v4l2_codec_h265_dec_close (GstVideoDecoder * decoder)
+{
+ GstV4l2CodecH265Dec *self = GST_V4L2_CODEC_H265_DEC (decoder);
+ gst_v4l2_decoder_close (self->decoder);
+ return TRUE;
+}
+
+static void
+gst_v4l2_codec_h265_dec_reset_allocation (GstV4l2CodecH265Dec * self)
+{
+ if (self->sink_allocator) {
+ gst_v4l2_codec_allocator_detach (self->sink_allocator);
+ g_clear_object (&self->sink_allocator);
+ }
+
+ if (self->src_allocator) {
+ gst_v4l2_codec_allocator_detach (self->src_allocator);
+ g_clear_object (&self->src_allocator);
+ g_clear_object (&self->src_pool);
+ }
+}
+
+static gboolean
+gst_v4l2_codec_h265_dec_stop (GstVideoDecoder * decoder)
+{
+ GstV4l2CodecH265Dec *self = GST_V4L2_CODEC_H265_DEC (decoder);
+
+ gst_v4l2_decoder_streamoff (self->decoder, GST_PAD_SINK);
+ gst_v4l2_decoder_streamoff (self->decoder, GST_PAD_SRC);
+
+ gst_v4l2_codec_h265_dec_reset_allocation (self);
+
+ if (self->output_state)
+ gst_video_codec_state_unref (self->output_state);
+ self->output_state = NULL;
+
+ return GST_VIDEO_DECODER_CLASS (parent_class)->stop (decoder);
+}
+
+static gint
+get_pixel_bitdepth (GstV4l2CodecH265Dec * self)
+{
+ gint depth;
+
+ switch (self->chroma_format_idc) {
+ case 0:
+ /* 4:0:0 */
+ depth = self->bitdepth;
+ break;
+ case 1:
+ /* 4:2:0 */
+ depth = self->bitdepth + self->bitdepth / 2;
+ break;
+ case 2:
+ /* 4:2:2 */
+ depth = 2 * self->bitdepth;
+ break;
+ case 3:
+ /* 4:4:4 */
+ depth = 3 * self->bitdepth;
+ break;
+ default:
+ GST_WARNING_OBJECT (self, "Unsupported chroma format %i",
+ self->chroma_format_idc);
+ depth = 0;
+ break;
+ }
+
+ return depth;
+}
+
+static gboolean
+gst_v4l2_codec_h265_dec_negotiate (GstVideoDecoder * decoder)
+{
+ GstV4l2CodecH265Dec *self = GST_V4L2_CODEC_H265_DEC (decoder);
+ GstH265Decoder *h265dec = GST_H265_DECODER (decoder);
+ /* *INDENT-OFF* */
+ struct v4l2_ext_control control[] = {
+ {
+ .id = V4L2_CID_STATELESS_HEVC_SPS,
+ .ptr = &self->sps,
+ .size = sizeof (self->sps),
+ },
+ };
+ /* *INDENT-ON* */
+ GstCaps *filter, *caps;
+
+ /* Ignore downstream renegotiation request. */
+ if (!self->need_negotiation)
+ return TRUE;
+ self->need_negotiation = FALSE;
+
+ GST_DEBUG_OBJECT (self, "Negotiate");
+
+ gst_v4l2_decoder_streamoff (self->decoder, GST_PAD_SINK);
+ gst_v4l2_decoder_streamoff (self->decoder, GST_PAD_SRC);
+
+ gst_v4l2_codec_h265_dec_reset_allocation (self);
+
+ if (!gst_v4l2_decoder_set_sink_fmt (self->decoder, V4L2_PIX_FMT_HEVC_SLICE,
+ self->coded_width, self->coded_height, get_pixel_bitdepth (self))) {
+ GST_ELEMENT_ERROR (self, CORE, NEGOTIATION,
+ ("Failed to configure H265 decoder"),
+ ("gst_v4l2_decoder_set_sink_fmt() failed: %s", g_strerror (errno)));
+ gst_v4l2_decoder_close (self->decoder);
+ return FALSE;
+ }
+
+ if (!gst_v4l2_decoder_set_controls (self->decoder, NULL, control,
+ G_N_ELEMENTS (control))) {
+ GST_ELEMENT_ERROR (decoder, RESOURCE, WRITE,
+ ("Driver does not support the selected stream."), (NULL));
+ return FALSE;
+ }
+
+ filter = gst_v4l2_decoder_enum_src_formats (self->decoder);
+ if (!filter) {
+ GST_ELEMENT_ERROR (self, CORE, NEGOTIATION,
+ ("No supported decoder output formats"), (NULL));
+ return FALSE;
+ }
+ GST_DEBUG_OBJECT (self, "Supported output formats: %" GST_PTR_FORMAT, filter);
+
+ caps = gst_pad_peer_query_caps (decoder->srcpad, filter);
+ gst_caps_unref (filter);
+ GST_DEBUG_OBJECT (self, "Peer supported formats: %" GST_PTR_FORMAT, caps);
+
+ if (!gst_v4l2_decoder_select_src_format (self->decoder, caps, &self->vinfo)) {
+ GST_ELEMENT_ERROR (self, CORE, NEGOTIATION,
+ ("Unsupported bitdepth/chroma format"),
+ ("No support for %ux%u %ubit chroma IDC %i", self->coded_width,
+ self->coded_height, self->bitdepth, self->chroma_format_idc));
+ gst_caps_unref (caps);
+ return FALSE;
+ }
+ gst_caps_unref (caps);
+
+ if (self->output_state)
+ gst_video_codec_state_unref (self->output_state);
+
+ self->output_state =
+ gst_video_decoder_set_output_state (GST_VIDEO_DECODER (self),
+ self->vinfo.finfo->format, self->display_width,
+ self->display_height, h265dec->input_state);
+
+ self->output_state->caps = gst_video_info_to_caps (&self->output_state->info);
+
+ if (GST_VIDEO_DECODER_CLASS (parent_class)->negotiate (decoder)) {
+ if (!gst_v4l2_decoder_streamon (self->decoder, GST_PAD_SINK)) {
+ GST_ELEMENT_ERROR (self, RESOURCE, FAILED,
+ ("Could not enable the decoder driver."),
+ ("VIDIOC_STREAMON(SINK) failed: %s", g_strerror (errno)));
+ return FALSE;
+ }
+
+ if (!gst_v4l2_decoder_streamon (self->decoder, GST_PAD_SRC)) {
+ GST_ELEMENT_ERROR (self, RESOURCE, FAILED,
+ ("Could not enable the decoder driver."),
+ ("VIDIOC_STREAMON(SRC) failed: %s", g_strerror (errno)));
+ return FALSE;
+ }
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static gboolean
+gst_v4l2_codec_h265_dec_decide_allocation (GstVideoDecoder * decoder,
+ GstQuery * query)
+{
+ GstV4l2CodecH265Dec *self = GST_V4L2_CODEC_H265_DEC (decoder);
+ guint min = 0;
+
+ self->has_videometa = gst_query_find_allocation_meta (query,
+ GST_VIDEO_META_API_TYPE, NULL);
+
+ g_clear_object (&self->src_pool);
+ g_clear_object (&self->src_allocator);
+
+ if (gst_query_get_n_allocation_pools (query) > 0)
+ gst_query_parse_nth_allocation_pool (query, 0, NULL, NULL, &min, NULL);
+
+ min = MAX (2, min);
+
+ self->sink_allocator = gst_v4l2_codec_allocator_new (self->decoder,
+ GST_PAD_SINK, self->min_pool_size + 2);
+ self->src_allocator = gst_v4l2_codec_allocator_new (self->decoder,
+ GST_PAD_SRC, self->min_pool_size + min + 1);
+ self->src_pool = gst_v4l2_codec_pool_new (self->src_allocator, &self->vinfo);
+
+ /* Our buffer pool is internal, we will let the base class create a video
+ * pool, and use it if we are running out of buffers or if downstream does
+ * not support GstVideoMeta */
+ return GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation
+ (decoder, query);
+}
+
+static void
+gst_v4l2_codec_h265_dec_fill_sequence (GstV4l2CodecH265Dec * self,
+ const GstH265SPS * sps)
+{
+ /* Whenever we update teh sps, we need to send it again */
+ self->need_sequence = TRUE;
+
+ /* *INDENT-OFF* */
+ self->sps = (struct v4l2_ctrl_hevc_sps) {
+ .video_parameter_set_id = sps->vps->id,
+ .seq_parameter_set_id = sps->id,
+ .pic_width_in_luma_samples = sps->pic_width_in_luma_samples,
+ .pic_height_in_luma_samples = sps->pic_height_in_luma_samples,
+ .bit_depth_luma_minus8 = sps->bit_depth_luma_minus8,
+ .bit_depth_chroma_minus8 = sps->bit_depth_chroma_minus8,
+ .log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_pic_order_cnt_lsb_minus4,
+ .sps_max_dec_pic_buffering_minus1 = sps->max_dec_pic_buffering_minus1[0],
+ .sps_max_num_reorder_pics = sps->max_num_reorder_pics[0],
+ .sps_max_latency_increase_plus1 = sps->max_latency_increase_plus1[0],
+ .log2_min_luma_coding_block_size_minus3 = sps->log2_min_luma_coding_block_size_minus3,
+ .log2_diff_max_min_luma_coding_block_size = sps->log2_diff_max_min_luma_coding_block_size,
+ .log2_min_luma_transform_block_size_minus2 = sps->log2_min_transform_block_size_minus2,
+ .log2_diff_max_min_luma_transform_block_size = sps->log2_diff_max_min_transform_block_size,
+ .max_transform_hierarchy_depth_inter = sps->max_transform_hierarchy_depth_inter,
+ .max_transform_hierarchy_depth_intra = sps->max_transform_hierarchy_depth_intra,
+ .num_short_term_ref_pic_sets = sps->num_short_term_ref_pic_sets,
+ .num_long_term_ref_pics_sps = sps->num_long_term_ref_pics_sps,
+ .chroma_format_idc = sps->chroma_format_idc,
+ .sps_max_sub_layers_minus1 = sps->max_sub_layers_minus1,
+ .flags = (sps->separate_colour_plane_flag ? V4L2_HEVC_SPS_FLAG_SEPARATE_COLOUR_PLANE : 0) |
+ (sps->scaling_list_enabled_flag ? V4L2_HEVC_SPS_FLAG_SCALING_LIST_ENABLED : 0) |
+ (sps->amp_enabled_flag ? V4L2_HEVC_SPS_FLAG_AMP_ENABLED : 0) |
+ (sps->sample_adaptive_offset_enabled_flag ? V4L2_HEVC_SPS_FLAG_SAMPLE_ADAPTIVE_OFFSET : 0) |
+ (sps->long_term_ref_pics_present_flag ? V4L2_HEVC_SPS_FLAG_LONG_TERM_REF_PICS_PRESENT : 0) |
+ (sps->temporal_mvp_enabled_flag ? V4L2_HEVC_SPS_FLAG_SPS_TEMPORAL_MVP_ENABLED : 0) |
+ (sps->strong_intra_smoothing_enabled_flag ? V4L2_HEVC_SPS_FLAG_STRONG_INTRA_SMOOTHING_ENABLED : 0),
+ };
+ /* *INDENT-ON* */
+ if (sps->pcm_enabled_flag) {
+ self->sps.pcm_sample_bit_depth_luma_minus1 =
+ sps->pcm_sample_bit_depth_luma_minus1;
+ self->sps.pcm_sample_bit_depth_chroma_minus1 =
+ sps->pcm_sample_bit_depth_chroma_minus1;
+ self->sps.log2_min_pcm_luma_coding_block_size_minus3 =
+ sps->log2_min_pcm_luma_coding_block_size_minus3;
+ self->sps.log2_diff_max_min_pcm_luma_coding_block_size =
+ sps->log2_diff_max_min_pcm_luma_coding_block_size;
+ self->sps.flags |=
+ V4L2_HEVC_SPS_FLAG_PCM_ENABLED | (sps->pcm_loop_filter_disabled_flag ?
+ V4L2_HEVC_SPS_FLAG_PCM_LOOP_FILTER_DISABLED : 0);
+ }
+}
+
+static void
+gst_v4l2_codec_h265_dec_fill_pps (GstV4l2CodecH265Dec * self, GstH265PPS * pps)
+{
+ gint i;
+
+ /* *INDENT-OFF* */
+ self->pps = (struct v4l2_ctrl_hevc_pps) {
+ .pic_parameter_set_id = pps->id,
+ .num_extra_slice_header_bits = pps->num_extra_slice_header_bits,
+ .num_ref_idx_l0_default_active_minus1 = pps->num_ref_idx_l0_default_active_minus1,
+ .num_ref_idx_l1_default_active_minus1 = pps->num_ref_idx_l1_default_active_minus1,
+ .init_qp_minus26 = pps->init_qp_minus26,
+ .diff_cu_qp_delta_depth = pps->diff_cu_qp_delta_depth,
+ .pps_cb_qp_offset = pps->cb_qp_offset,
+ .pps_cr_qp_offset = pps->cr_qp_offset,
+ .pps_beta_offset_div2 = pps->beta_offset_div2,
+ .pps_tc_offset_div2 = pps->tc_offset_div2,
+ .log2_parallel_merge_level_minus2 = pps->log2_parallel_merge_level_minus2,
+ .flags = (pps->dependent_slice_segments_enabled_flag ? V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT_ENABLED : 0) |
+ (pps->output_flag_present_flag ? V4L2_HEVC_PPS_FLAG_OUTPUT_FLAG_PRESENT : 0) |
+ (pps->sign_data_hiding_enabled_flag ? V4L2_HEVC_PPS_FLAG_SIGN_DATA_HIDING_ENABLED : 0) |
+ (pps->cabac_init_present_flag ? V4L2_HEVC_PPS_FLAG_CABAC_INIT_PRESENT : 0) |
+ (pps->constrained_intra_pred_flag ? V4L2_HEVC_PPS_FLAG_CONSTRAINED_INTRA_PRED : 0) |
+ (pps->transform_skip_enabled_flag ? V4L2_HEVC_PPS_FLAG_TRANSFORM_SKIP_ENABLED : 0) |
+ (pps->cu_qp_delta_enabled_flag ? V4L2_HEVC_PPS_FLAG_CU_QP_DELTA_ENABLED : 0) |
+ (pps->slice_chroma_qp_offsets_present_flag ? V4L2_HEVC_PPS_FLAG_PPS_SLICE_CHROMA_QP_OFFSETS_PRESENT : 0) |
+ (pps->weighted_pred_flag ? V4L2_HEVC_PPS_FLAG_WEIGHTED_PRED : 0) |
+ (pps->weighted_bipred_flag ? V4L2_HEVC_PPS_FLAG_WEIGHTED_BIPRED : 0) |
+ (pps->transquant_bypass_enabled_flag ? V4L2_HEVC_PPS_FLAG_TRANSQUANT_BYPASS_ENABLED : 0) |
+ (pps->tiles_enabled_flag ? V4L2_HEVC_PPS_FLAG_TILES_ENABLED : 0) |
+ (pps->entropy_coding_sync_enabled_flag ? V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED : 0) |
+ (pps->loop_filter_across_tiles_enabled_flag ? V4L2_HEVC_PPS_FLAG_LOOP_FILTER_ACROSS_TILES_ENABLED : 0) |
+ (pps->loop_filter_across_slices_enabled_flag ? V4L2_HEVC_PPS_FLAG_PPS_LOOP_FILTER_ACROSS_SLICES_ENABLED : 0 ) |
+ (pps->deblocking_filter_override_enabled_flag ? V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_OVERRIDE_ENABLED : 0) |
+ (pps->deblocking_filter_disabled_flag ? V4L2_HEVC_PPS_FLAG_PPS_DISABLE_DEBLOCKING_FILTER : 0) |
+ (pps->lists_modification_present_flag ? V4L2_HEVC_PPS_FLAG_LISTS_MODIFICATION_PRESENT : 0) |
+ (pps->slice_segment_header_extension_present_flag ? V4L2_HEVC_PPS_FLAG_SLICE_SEGMENT_HEADER_EXTENSION_PRESENT : 0) |
+ (pps->deblocking_filter_control_present_flag ? V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT : 0) |
+ (pps->uniform_spacing_flag ? V4L2_HEVC_PPS_FLAG_UNIFORM_SPACING : 0),
+ };
+ /* *INDENT-ON* */
+
+ if (pps->tiles_enabled_flag) {
+ self->pps.num_tile_columns_minus1 = pps->num_tile_columns_minus1;
+ self->pps.num_tile_rows_minus1 = pps->num_tile_rows_minus1;
+
+ /* This should not be needed if we use uniform spacing, but Cedrus driver
+ * depends on it for now. As GStreamer parser do set that, lets just pass
+ * the information we have. */
+ for (i = 0; i <= pps->num_tile_columns_minus1; i++)
+ self->pps.column_width_minus1[i] = pps->column_width_minus1[i];
+ for (i = 0; i <= pps->num_tile_rows_minus1; i++)
+ self->pps.row_height_minus1[i] = pps->row_height_minus1[i];
+ }
+}
+
+static void
+gst_v4l2_codec_h265_dec_fill_scaling_matrix (GstV4l2CodecH265Dec * self,
+ GstH265PPS * pps)
+{
+ GstH265ScalingList *sl;
+ gint i;
+
+ if (!pps->sps->scaling_list_enabled_flag) {
+ memset (&self->scaling_matrix, 0, sizeof (self->scaling_matrix));
+ return;
+ }
+
+ if (pps->scaling_list_data_present_flag)
+ sl = &pps->scaling_list;
+ else if (pps->sps->scaling_list_data_present_flag)
+ sl = &pps->sps->scaling_list;
+ /* The default scaling list is strored in the pps */
+ else
+ sl = &pps->scaling_list;
+
+ for (i = 0; i < G_N_ELEMENTS (sl->scaling_lists_4x4); i++)
+ gst_h265_quant_matrix_4x4_get_raster_from_uprightdiagonal
+ (self->scaling_matrix.scaling_list_4x4[i], sl->scaling_lists_4x4[i]);
+
+ for (i = 0; i < G_N_ELEMENTS (sl->scaling_lists_8x8); i++)
+ gst_h265_quant_matrix_8x8_get_raster_from_uprightdiagonal
+ (self->scaling_matrix.scaling_list_8x8[i], sl->scaling_lists_8x8[i]);
+
+ for (i = 0; i < G_N_ELEMENTS (sl->scaling_lists_16x16); i++)
+ gst_h265_quant_matrix_16x16_get_raster_from_uprightdiagonal
+ (self->scaling_matrix.scaling_list_16x16[i],
+ sl->scaling_lists_16x16[i]);
+
+ for (i = 0; i < G_N_ELEMENTS (sl->scaling_lists_32x32); i++)
+ gst_h265_quant_matrix_32x32_get_raster_from_uprightdiagonal
+ (self->scaling_matrix.scaling_list_32x32[i],
+ sl->scaling_lists_32x32[i]);
+
+ for (i = 0; i < G_N_ELEMENTS (sl->scaling_list_dc_coef_minus8_16x16); i++)
+ self->scaling_matrix.scaling_list_dc_coef_16x16[i] =
+ sl->scaling_list_dc_coef_minus8_16x16[i] + 8;
+
+ for (i = 0; i < G_N_ELEMENTS (sl->scaling_list_dc_coef_minus8_32x32); i++)
+ self->scaling_matrix.scaling_list_dc_coef_32x32[i] =
+ sl->scaling_list_dc_coef_minus8_32x32[i] + 8;
+}
+
+static guint
+get_slice_header_byte_offset (GstH265Slice * slice)
+{
+ guint epb_count, nal_header_bytes;
+
+ epb_count = slice->header.n_emulation_prevention_bytes;
+ nal_header_bytes = slice->nalu.header_bytes;
+
+ return nal_header_bytes + (slice->header.header_size + 7) / 8 - epb_count;
+}
+
+static void
+gst_v4l2_codec_h265_dec_fill_slice_params (GstV4l2CodecH265Dec * self,
+ GstH265Slice * slice, GstH265Picture * picture)
+{
+ gint n = self->num_slices++;
+ GstH265SliceHdr *slice_hdr = &slice->header;
+ GstH265PPS *pps = slice_hdr->pps;
+ gsize slice_size = slice->nalu.size;
+ gsize sc_offset = 0;
+ struct v4l2_ctrl_hevc_slice_params *params;
+ gint i, j;
+ gint chroma_weight, chroma_log2_weight_denom;
+ /* TODO adjust this if sps_ext is later supported */
+ const gint32 WpOffsetHalfRangeC = 1 << 7;
+
+ /* Ensure array is large enough */
+ if (self->slice_params->len < self->num_slices)
+ g_array_set_size (self->slice_params, self->slice_params->len * 2);
+
+ if (needs_start_codes (self))
+ sc_offset = 3;
+
+ /* *INDENT-OFF* */
+ params = &g_array_index (self->slice_params, struct v4l2_ctrl_hevc_slice_params, n);
+ *params = (struct v4l2_ctrl_hevc_slice_params) {
+ .bit_size = (slice_size + sc_offset) * 8,
+ .data_byte_offset = get_slice_header_byte_offset (slice) + sc_offset,
+ .num_entry_point_offsets = slice_hdr->num_entry_point_offsets,
+ .nal_unit_type = slice->nalu.type,
+ .nuh_temporal_id_plus1 = slice->nalu.temporal_id_plus1,
+ .slice_type = slice_hdr->type,
+ .colour_plane_id = slice_hdr->colour_plane_id,
+ .slice_pic_order_cnt = picture->pic_order_cnt,
+ .num_ref_idx_l0_active_minus1 = slice_hdr->num_ref_idx_l0_active_minus1,
+ .num_ref_idx_l1_active_minus1 = slice_hdr->num_ref_idx_l1_active_minus1,
+ .collocated_ref_idx = slice_hdr->collocated_ref_idx,
+ .five_minus_max_num_merge_cand = slice_hdr->five_minus_max_num_merge_cand,
+ .slice_qp_delta = slice_hdr->qp_delta,
+ .slice_cb_qp_offset = slice_hdr->cb_qp_offset,
+ .slice_cr_qp_offset = slice_hdr->cr_qp_offset,
+ .slice_act_y_qp_offset = slice_hdr->slice_act_y_qp_offset,
+ .slice_act_cb_qp_offset = slice_hdr->slice_act_cb_qp_offset,
+ .slice_act_cr_qp_offset = slice_hdr->slice_act_cr_qp_offset,
+ .slice_beta_offset_div2 = slice_hdr->beta_offset_div2,
+ .slice_tc_offset_div2 = slice_hdr->tc_offset_div2,
+ .pic_struct = picture->pic_struct,
+ .slice_segment_addr = slice_hdr->segment_address,
+ .short_term_ref_pic_set_size = slice_hdr->short_term_ref_pic_set_size,
+ .long_term_ref_pic_set_size = slice_hdr->long_term_ref_pic_set_size,
+ .pred_weight_table = (struct v4l2_hevc_pred_weight_table) {
+ .luma_log2_weight_denom = slice_hdr->pred_weight_table.luma_log2_weight_denom,
+ .delta_chroma_log2_weight_denom = slice_hdr->pred_weight_table.delta_chroma_log2_weight_denom,
+ },
+ .flags =
+ (slice_hdr->sao_luma_flag ? V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_LUMA : 0) |
+ (slice_hdr->sao_chroma_flag ? V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_CHROMA : 0) |
+ (slice_hdr->temporal_mvp_enabled_flag ? V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_TEMPORAL_MVP_ENABLED : 0) |
+ (slice_hdr->mvd_l1_zero_flag ? V4L2_HEVC_SLICE_PARAMS_FLAG_MVD_L1_ZERO : 0) |
+ (slice_hdr->cabac_init_flag ? V4L2_HEVC_SLICE_PARAMS_FLAG_CABAC_INIT : 0) |
+ (slice_hdr->collocated_from_l0_flag ? V4L2_HEVC_SLICE_PARAMS_FLAG_COLLOCATED_FROM_L0 : 0) |
+ (slice_hdr->use_integer_mv_flag ? V4L2_HEVC_SLICE_PARAMS_FLAG_USE_INTEGER_MV : 0) |
+ (slice_hdr->deblocking_filter_disabled_flag ?
+ V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_DEBLOCKING_FILTER_DISABLED : 0) |
+ (slice_hdr->loop_filter_across_slices_enabled_flag ?
+ V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_LOOP_FILTER_ACROSS_SLICES_ENABLED : 0) |
+ (slice_hdr->dependent_slice_segment_flag ?
+ V4L2_HEVC_SLICE_PARAMS_FLAG_DEPENDENT_SLICE_SEGMENT : 0),
+ };
+ /* *INDENT-ON* */
+
+ for (i = 0; i < slice_hdr->num_entry_point_offsets; i++) {
+ guint32 entry_point_offset = slice_hdr->entry_point_offset_minus1[i] + 1;
+ g_array_append_val (self->entry_point_offsets, entry_point_offset);
+ }
+
+ if (GST_H265_IS_I_SLICE (slice_hdr) ||
+ (!pps->weighted_pred_flag && GST_H265_IS_P_SLICE (slice_hdr)) ||
+ (!pps->weighted_bipred_flag && GST_H265_IS_B_SLICE (slice_hdr)))
+ return;
+
+ for (i = 0; i <= slice_hdr->num_ref_idx_l0_active_minus1; i++) {
+ if (!slice_hdr->pred_weight_table.luma_weight_l0_flag[i])
+ continue;
+
+ params->pred_weight_table.delta_luma_weight_l0[i] =
+ slice_hdr->pred_weight_table.delta_luma_weight_l0[i];
+ params->pred_weight_table.luma_offset_l0[i] =
+ slice_hdr->pred_weight_table.luma_offset_l0[i];
+ }
+
+ chroma_log2_weight_denom =
+ slice_hdr->pred_weight_table.luma_log2_weight_denom +
+ slice_hdr->pred_weight_table.delta_chroma_log2_weight_denom;
+
+ if (slice_hdr->pps->sps->chroma_array_type != 0) {
+
+ for (i = 0; i <= slice_hdr->num_ref_idx_l0_active_minus1; i++) {
+ if (!slice_hdr->pred_weight_table.chroma_weight_l0_flag[i])
+ continue;
+
+ for (j = 0; j < 2; j++) {
+ gint16 delta_chroma_offset_l0 =
+ slice_hdr->pred_weight_table.delta_chroma_offset_l0[i][j];
+ gint chroma_offset;
+
+ params->pred_weight_table.delta_chroma_weight_l0[i][j] =
+ slice_hdr->pred_weight_table.delta_chroma_weight_l0[i][j];
+
+ /* Find ChromaWeightL0 */
+ chroma_weight = (1 << chroma_log2_weight_denom) +
+ slice_hdr->pred_weight_table.delta_chroma_weight_l0[i][j];
+ chroma_offset = WpOffsetHalfRangeC + delta_chroma_offset_l0 -
+ ((WpOffsetHalfRangeC * chroma_weight) >> chroma_log2_weight_denom);
+
+ /* 7-56 */
+ params->pred_weight_table.chroma_offset_l0[i][j] =
+ CLAMP (chroma_offset, -WpOffsetHalfRangeC, WpOffsetHalfRangeC - 1);
+ }
+ }
+ }
+
+ /* Skip l1 if this is not a B-Frame. */
+ if (!GST_H265_IS_B_SLICE (slice_hdr))
+ return;
+
+ for (i = 0; i <= slice_hdr->num_ref_idx_l1_active_minus1; i++) {
+ if (!slice_hdr->pred_weight_table.luma_weight_l1_flag[i])
+ continue;
+
+ params->pred_weight_table.delta_luma_weight_l1[i] =
+ slice_hdr->pred_weight_table.delta_luma_weight_l1[i];
+ params->pred_weight_table.luma_offset_l1[i] =
+ slice_hdr->pred_weight_table.luma_offset_l1[i];
+ }
+
+ if (slice_hdr->pps->sps->chroma_array_type != 0) {
+ for (i = 0; i <= slice_hdr->num_ref_idx_l1_active_minus1; i++) {
+ if (!slice_hdr->pred_weight_table.chroma_weight_l1_flag[i])
+ continue;
+
+ for (j = 0; j < 2; j++) {
+ gint16 delta_chroma_offset_l1 =
+ slice_hdr->pred_weight_table.delta_chroma_offset_l1[i][j];
+ gint chroma_offset;
+
+ params->pred_weight_table.delta_chroma_weight_l1[i][j] =
+ slice_hdr->pred_weight_table.delta_chroma_weight_l1[i][j];
+
+ /* Find ChromaWeightL1 */
+ chroma_weight = (1 << chroma_log2_weight_denom) +
+ slice_hdr->pred_weight_table.delta_chroma_weight_l1[i][j];
+
+ chroma_offset = WpOffsetHalfRangeC + delta_chroma_offset_l1 -
+ ((WpOffsetHalfRangeC * chroma_weight) >> chroma_log2_weight_denom);
+
+ /* 7-56 */
+ params->pred_weight_table.chroma_offset_l1[i][j] =
+ CLAMP (chroma_offset, -WpOffsetHalfRangeC, WpOffsetHalfRangeC - 1);
+ }
+ }
+ }
+}
+
+static guint8
+lookup_dpb_index (struct v4l2_hevc_dpb_entry dpb[16], GstH265Picture * ref_pic)
+{
+ guint64 ref_ts;
+ gint i;
+
+ /* Reference list may have wholes in case a ref is missing, we should mark
+ * the whole and avoid moving items in the list */
+ if (!ref_pic)
+ return 0xff;
+
+ ref_ts = (guint64) ref_pic->system_frame_number * 1000;
+ for (i = 0; i < 16; i++) {
+ if (dpb[i].timestamp == ref_ts)
+ return i;
+ }
+
+ return 0xff;
+}
+
+static void
+gst_v4l2_codec_h265_dec_fill_references (GstV4l2CodecH265Dec * self,
+ GArray * ref_pic_list0, GArray * ref_pic_list1)
+{
+ struct v4l2_ctrl_hevc_slice_params *slice_params;
+ struct v4l2_ctrl_hevc_decode_params *decode_params = &self->decode_params;
+ gint i;
+
+ slice_params = &g_array_index (self->slice_params,
+ struct v4l2_ctrl_hevc_slice_params, self->num_slices - 1);
+
+ memset (slice_params->ref_idx_l0, 0xff, sizeof (slice_params->ref_idx_l0));
+ memset (slice_params->ref_idx_l1, 0xff, sizeof (slice_params->ref_idx_l1));
+
+ for (i = 0; i < ref_pic_list0->len; i++) {
+ GstH265Picture *ref_pic =
+ g_array_index (ref_pic_list0, GstH265Picture *, i);
+ slice_params->ref_idx_l0[i] =
+ lookup_dpb_index (decode_params->dpb, ref_pic);
+ }
+
+ for (i = 0; i < ref_pic_list1->len; i++) {
+ GstH265Picture *ref_pic =
+ g_array_index (ref_pic_list1, GstH265Picture *, i);
+ slice_params->ref_idx_l1[i] =
+ lookup_dpb_index (decode_params->dpb, ref_pic);
+ }
+}
+
+static GstFlowReturn
+gst_v4l2_codec_h265_dec_new_sequence (GstH265Decoder * decoder,
+ const GstH265SPS * sps, gint max_dpb_size)
+{
+ GstV4l2CodecH265Dec *self = GST_V4L2_CODEC_H265_DEC (decoder);
+ gint crop_width = sps->width;
+ gint crop_height = sps->height;
+ gboolean negotiation_needed = FALSE;
+
+ if (self->vinfo.finfo->format == GST_VIDEO_FORMAT_UNKNOWN)
+ negotiation_needed = TRUE;
+
+ /* TODO check if CREATE_BUFS is supported, and simply grow the pool */
+ if (self->min_pool_size < max_dpb_size) {
+ self->min_pool_size = max_dpb_size;
+ negotiation_needed = TRUE;
+ }
+
+ self->need_crop = FALSE;
+ if (sps->conformance_window_flag) {
+ crop_width = sps->crop_rect_width;
+ crop_height = sps->crop_rect_height;
+ self->crop_rect_width = sps->crop_rect_width;
+ self->crop_rect_height = sps->crop_rect_height;
+ self->crop_rect_x = sps->crop_rect_x;
+ self->crop_rect_y = sps->crop_rect_y;
+
+ /* conformance_window_flag could be set but with zeroed
+ * parameters so check if we really need to crop */
+ self->need_crop |= self->crop_rect_width != sps->width;
+ self->need_crop |= self->crop_rect_height != sps->height;
+ self->need_crop |= self->crop_rect_x != 0;
+ self->need_crop |= self->crop_rect_y != 0;
+ }
+
+ /* TODO Check if current buffers are large enough, and reuse them */
+ if (self->display_width != crop_width || self->display_height != crop_height
+ || self->coded_width != sps->width || self->coded_height != sps->height) {
+ self->display_width = crop_width;
+ self->display_height = crop_height;
+ self->coded_width = sps->width;
+ self->coded_height = sps->height;
+ negotiation_needed = TRUE;
+ GST_INFO_OBJECT (self, "Resolution changed to %dx%d (%ix%i)",
+ self->display_width, self->display_height,
+ self->coded_width, self->coded_height);
+ }
+
+ if (self->bitdepth != sps->bit_depth_luma_minus8 + 8) {
+ self->bitdepth = sps->bit_depth_luma_minus8 + 8;
+ negotiation_needed = TRUE;
+ GST_INFO_OBJECT (self, "Bitdepth changed to %u", self->bitdepth);
+ }
+
+ if (self->chroma_format_idc != sps->chroma_format_idc) {
+ self->chroma_format_idc = sps->chroma_format_idc;
+ negotiation_needed = TRUE;
+ GST_INFO_OBJECT (self, "Chroma format changed to %i",
+ self->chroma_format_idc);
+ }
+
+ gst_v4l2_codec_h265_dec_fill_sequence (self, sps);
+
+ if (negotiation_needed) {
+ self->need_negotiation = TRUE;
+ if (!gst_video_decoder_negotiate (GST_VIDEO_DECODER (self))) {
+ GST_ERROR_OBJECT (self, "Failed to negotiate with downstream");
+ return GST_FLOW_NOT_NEGOTIATED;
+ }
+ }
+
+ /* Check if we can zero-copy buffers */
+ if (!self->has_videometa) {
+ GstVideoInfo ref_vinfo;
+ gint i;
+
+ gst_video_info_set_format (&ref_vinfo, GST_VIDEO_INFO_FORMAT (&self->vinfo),
+ self->display_width, self->display_height);
+
+ for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&self->vinfo); i++) {
+ if (self->vinfo.stride[i] != ref_vinfo.stride[i] ||
+ self->vinfo.offset[i] != ref_vinfo.offset[i]) {
+ GST_WARNING_OBJECT (self,
+ "GstVideoMeta support required, copying frames.");
+ self->copy_frames = TRUE;
+ break;
+ }
+ }
+ } else {
+ self->copy_frames = self->need_crop;
+ }
+
+ return GST_FLOW_OK;
+}
+
+static gboolean
+gst_v4l2_codec_h265_dec_ensure_bitstream (GstV4l2CodecH265Dec * self)
+{
+ if (self->bitstream)
+ goto done;
+
+ self->bitstream = gst_v4l2_codec_allocator_alloc (self->sink_allocator);
+
+ if (!self->bitstream) {
+ GST_ELEMENT_ERROR (self, RESOURCE, NO_SPACE_LEFT,
+ ("Not enough memory to decode H265 stream."), (NULL));
+ return FALSE;
+ }
+
+ if (!gst_memory_map (self->bitstream, &self->bitstream_map, GST_MAP_WRITE)) {
+ GST_ELEMENT_ERROR (self, RESOURCE, WRITE,
+ ("Could not access bitstream memory for writing"), (NULL));
+ g_clear_pointer (&self->bitstream, gst_memory_unref);
+ return FALSE;
+ }
+
+done:
+ /* We use this field to track how much we have written */
+ self->bitstream_map.size = 0;
+
+ return TRUE;
+}
+
+static void
+gst_v4l2_codec_h265_dec_fill_decode_params (GstV4l2CodecH265Dec * self,
+ GstH265Picture * picture, GstH265Slice * slice, GstH265Dpb * dpb)
+{
+ GstH265Decoder *decoder = (GstH265Decoder *) self;
+ GArray *refs = gst_h265_dpb_get_pictures_all (dpb);
+ gint i;
+
+ /* *INDENT-OFF* */
+ self->decode_params = (struct v4l2_ctrl_hevc_decode_params) {
+ .pic_order_cnt_val = picture->pic_order_cnt,
+ .num_poc_st_curr_before = decoder->NumPocStCurrBefore,
+ .num_poc_st_curr_after = decoder->NumPocStCurrAfter,
+ .num_poc_lt_curr = decoder->NumPocLtCurr,
+ .flags =
+ (GST_H265_IS_NAL_TYPE_IRAP (slice->nalu.type) ? V4L2_HEVC_DECODE_PARAM_FLAG_IRAP_PIC : 0) |
+ (GST_H265_IS_NAL_TYPE_IDR (slice->nalu.type) ? V4L2_HEVC_DECODE_PARAM_FLAG_IDR_PIC : 0) |
+ (slice->header.no_output_of_prior_pics_flag ? V4L2_HEVC_DECODE_PARAM_FLAG_NO_OUTPUT_OF_PRIOR : 0),
+ };
+ /* *INDENT-ON* */
+
+ for (i = 0; i < refs->len; i++) {
+ GstH265Picture *ref_pic = g_array_index (refs, GstH265Picture *, i);
+
+ if (!ref_pic->ref)
+ continue;
+
+ /* *INDENT-OFF* */
+ self->decode_params.dpb[self->decode_params.num_active_dpb_entries++] =
+ (struct v4l2_hevc_dpb_entry) {
+ /*
+ * The reference is multiplied by 1000 because it's wassed as micro
+ * seconds and this TS is nanosecond.
+ */
+ .timestamp = (guint64) ref_pic->system_frame_number * 1000,
+ .flags = ref_pic->long_term ? V4L2_HEVC_DPB_ENTRY_LONG_TERM_REFERENCE : 0,
+ .field_pic = ref_pic->pic_struct,
+ .pic_order_cnt_val = ref_pic->pic_order_cnt,
+ };
+ /* *INDENT-ON* */
+ }
+
+ for (i = 0; i < 16; i++) {
+ self->decode_params.poc_st_curr_before[i] =
+ lookup_dpb_index (self->decode_params.dpb,
+ decoder->RefPicSetStCurrBefore[i]);
+ self->decode_params.poc_st_curr_after[i] =
+ lookup_dpb_index (self->decode_params.dpb,
+ decoder->RefPicSetStCurrAfter[i]);
+ self->decode_params.poc_lt_curr[i] =
+ lookup_dpb_index (self->decode_params.dpb, decoder->RefPicSetLtCurr[i]);
+ }
+
+ g_array_unref (refs);
+}
+
+static GstFlowReturn
+gst_v4l2_codec_h265_dec_start_picture (GstH265Decoder * decoder,
+ GstH265Picture * picture, GstH265Slice * slice, GstH265Dpb * dpb)
+{
+ GstV4l2CodecH265Dec *self = GST_V4L2_CODEC_H265_DEC (decoder);
+
+ /* FIXME base class should not call us if negotiation failed */
+ if (!self->sink_allocator)
+ return GST_FLOW_NOT_NEGOTIATED;
+
+ if (!gst_v4l2_codec_h265_dec_ensure_bitstream (self))
+ return GST_FLOW_ERROR;
+
+ /* The base class will only emit new_sequence for allocation related changes
+ * in the SPS, make sure to keep the SPS upt-to-date */
+ if (slice->header.pps->sps->id != self->sps.seq_parameter_set_id)
+ gst_v4l2_codec_h265_dec_fill_sequence (self, slice->header.pps->sps);
+
+ gst_v4l2_codec_h265_dec_fill_pps (self, slice->header.pps);
+ gst_v4l2_codec_h265_dec_fill_scaling_matrix (self, slice->header.pps);
+ gst_v4l2_codec_h265_dec_fill_decode_params (self, picture, slice, dpb);
+
+ self->first_slice = TRUE;
+ self->num_slices = 0;
+ g_array_set_size (self->entry_point_offsets, 0);
+
+ return GST_FLOW_OK;
+}
+
+static gboolean
+gst_v4l2_codec_h265_dec_crop_output_buffer (GstV4l2CodecH265Dec * self,
+ GstVideoFrame * dest_frame, GstVideoFrame * src_frame)
+{
+ GstVideoInfo dst_info = dest_frame->info;
+
+ dst_info.fps_n = src_frame->info.fps_n;
+ dst_info.fps_d = src_frame->info.fps_d;
+
+ if (self->convert) {
+ gboolean new_convert = FALSE;
+ gint x = 0, y = 0, width = 0, height = 0;
+ const GstStructure *config = gst_video_converter_get_config (self->convert);
+
+ if (!gst_structure_get_int (config, GST_VIDEO_CONVERTER_OPT_SRC_X, &x)
+ || !gst_structure_get_int (config, GST_VIDEO_CONVERTER_OPT_SRC_Y, &y)
+ || !gst_structure_get_int (config, GST_VIDEO_CONVERTER_OPT_SRC_WIDTH,
+ &width)
+ || !gst_structure_get_int (config, GST_VIDEO_CONVERTER_OPT_SRC_HEIGHT,
+ &height))
+ new_convert = TRUE;
+
+ new_convert |= (self->crop_rect_x != x);
+ new_convert |= (self->crop_rect_y != y);
+ new_convert |= (self->crop_rect_width != width);
+ new_convert |= (self->crop_rect_height != height);
+
+ /* No need to check dest, it always has (0,0) -> (width, height) */
+
+ if (new_convert)
+ g_clear_pointer (&self->convert, gst_video_converter_free);
+ }
+
+ if (!self->convert) {
+ self->convert = gst_video_converter_new (&src_frame->info, &dst_info,
+ gst_structure_new ("options",
+ GST_VIDEO_CONVERTER_OPT_DITHER_METHOD,
+ GST_TYPE_VIDEO_DITHER_METHOD, GST_VIDEO_DITHER_NONE,
+ GST_VIDEO_CONVERTER_OPT_DITHER_QUANTIZATION,
+ G_TYPE_UINT, 0,
+ GST_VIDEO_CONVERTER_OPT_CHROMA_MODE,
+ GST_TYPE_VIDEO_CHROMA_MODE, GST_VIDEO_CHROMA_MODE_NONE,
+ GST_VIDEO_CONVERTER_OPT_MATRIX_MODE,
+ GST_TYPE_VIDEO_MATRIX_MODE, GST_VIDEO_MATRIX_MODE_NONE,
+ GST_VIDEO_CONVERTER_OPT_SRC_X, G_TYPE_INT, self->crop_rect_x,
+ GST_VIDEO_CONVERTER_OPT_SRC_Y, G_TYPE_INT, self->crop_rect_y,
+ GST_VIDEO_CONVERTER_OPT_SRC_WIDTH, G_TYPE_INT,
+ self->crop_rect_width, GST_VIDEO_CONVERTER_OPT_SRC_HEIGHT,
+ G_TYPE_INT, self->crop_rect_height, GST_VIDEO_CONVERTER_OPT_DEST_X,
+ G_TYPE_INT, 0, GST_VIDEO_CONVERTER_OPT_DEST_Y, G_TYPE_INT, 0,
+ GST_VIDEO_CONVERTER_OPT_DEST_WIDTH, G_TYPE_INT, self->display_width,
+ GST_VIDEO_CONVERTER_OPT_DEST_HEIGHT, G_TYPE_INT,
+ self->display_height, NULL));
+
+ if (!self->convert) {
+ GST_WARNING_OBJECT (self, "failed to create a video convert");
+ return FALSE;
+ }
+ }
+
+ gst_video_converter_frame (self->convert, src_frame, dest_frame);
+
+ return TRUE;
+}
+
+static gboolean
+gst_v4l2_codec_h265_dec_copy_output_buffer (GstV4l2CodecH265Dec * self,
+ GstVideoCodecFrame * codec_frame)
+{
+ GstVideoFrame src_frame;
+ GstVideoFrame dest_frame;
+ GstVideoInfo dest_vinfo;
+ GstBuffer *buffer;
+
+ gst_video_info_set_format (&dest_vinfo, GST_VIDEO_INFO_FORMAT (&self->vinfo),
+ self->display_width, self->display_height);
+
+ buffer = gst_video_decoder_allocate_output_buffer (GST_VIDEO_DECODER (self));
+ if (!buffer)
+ goto fail;
+
+ if (!gst_video_frame_map (&src_frame, &self->vinfo,
+ codec_frame->output_buffer, GST_MAP_READ))
+ goto fail;
+
+ if (!gst_video_frame_map (&dest_frame, &dest_vinfo, buffer, GST_MAP_WRITE)) {
+ gst_video_frame_unmap (&dest_frame);
+ goto fail;
+ }
+
+ if (self->need_crop) {
+ if (!gst_v4l2_codec_h265_dec_crop_output_buffer (self, &dest_frame,
+ &src_frame)) {
+ gst_video_frame_unmap (&src_frame);
+ gst_video_frame_unmap (&dest_frame);
+ GST_ERROR_OBJECT (self, "fail to apply the video crop.");
+ goto fail;
+ }
+ } else {
+ /* gst_video_frame_copy can crop this, but does not know, so let make it
+ * think it's all right */
+ GST_VIDEO_INFO_WIDTH (&src_frame.info) = self->display_width;
+ GST_VIDEO_INFO_HEIGHT (&src_frame.info) = self->display_height;
+
+ if (!gst_video_frame_copy (&dest_frame, &src_frame)) {
+ gst_video_frame_unmap (&src_frame);
+ gst_video_frame_unmap (&dest_frame);
+ goto fail;
+ }
+ }
+
+ gst_video_frame_unmap (&src_frame);
+ gst_video_frame_unmap (&dest_frame);
+ gst_buffer_replace (&codec_frame->output_buffer, buffer);
+ gst_buffer_unref (buffer);
+
+ return TRUE;
+
+fail:
+ GST_ERROR_OBJECT (self, "Failed copy output buffer.");
+ return FALSE;
+}
+
+static GstFlowReturn
+gst_v4l2_codec_h265_dec_output_picture (GstH265Decoder * decoder,
+ GstVideoCodecFrame * frame, GstH265Picture * picture)
+{
+ GstV4l2CodecH265Dec *self = GST_V4L2_CODEC_H265_DEC (decoder);
+ GstV4l2Request *request = gst_h265_picture_get_user_data (picture);
+ gint ret;
+
+ GST_DEBUG_OBJECT (self, "Output picture %u", picture->system_frame_number);
+
+ ret = gst_v4l2_request_set_done (request);
+ if (ret == 0) {
+ GST_ELEMENT_ERROR (self, STREAM, DECODE,
+ ("Decoding frame %u took too long", picture->system_frame_number),
+ (NULL));
+ goto error;
+ } else if (ret < 0) {
+ GST_ELEMENT_ERROR (self, STREAM, DECODE,
+ ("Decoding request failed: %s", g_strerror (errno)), (NULL));
+ goto error;
+ }
+ g_return_val_if_fail (frame->output_buffer, GST_FLOW_ERROR);
+
+ if (gst_v4l2_request_failed (request)) {
+ GST_ELEMENT_ERROR (self, STREAM, DECODE,
+ ("Failed to decode frame %u", picture->system_frame_number), (NULL));
+ goto error;
+ }
+
+ /* Hold on reference buffers for the rest of the picture lifetime */
+ gst_h265_picture_set_user_data (picture,
+ gst_buffer_ref (frame->output_buffer), (GDestroyNotify) gst_buffer_unref);
+
+ if (self->copy_frames)
+ gst_v4l2_codec_h265_dec_copy_output_buffer (self, frame);
+
+ gst_h265_picture_unref (picture);
+
+ return gst_video_decoder_finish_frame (GST_VIDEO_DECODER (self), frame);
+
+error:
+ gst_video_decoder_drop_frame (GST_VIDEO_DECODER (self), frame);
+ gst_h265_picture_unref (picture);
+
+ return GST_FLOW_ERROR;
+}
+
+static void
+gst_v4l2_codec_h265_dec_reset_picture (GstV4l2CodecH265Dec * self)
+{
+ if (self->bitstream) {
+ if (self->bitstream_map.memory)
+ gst_memory_unmap (self->bitstream, &self->bitstream_map);
+ g_clear_pointer (&self->bitstream, gst_memory_unref);
+ self->bitstream_map = (GstMapInfo) GST_MAP_INFO_INIT;
+ }
+
+ self->num_slices = 0;
+ g_array_set_size (self->entry_point_offsets, 0);
+}
+
+static gboolean
+gst_v4l2_codec_h265_dec_ensure_output_buffer (GstV4l2CodecH265Dec * self,
+ GstVideoCodecFrame * frame)
+{
+ GstBuffer *buffer;
+ GstFlowReturn flow_ret;
+
+ if (frame->output_buffer)
+ return TRUE;
+
+ flow_ret = gst_buffer_pool_acquire_buffer (GST_BUFFER_POOL (self->src_pool),
+ &buffer, NULL);
+ if (flow_ret != GST_FLOW_OK) {
+ if (flow_ret == GST_FLOW_FLUSHING)
+ GST_DEBUG_OBJECT (self, "Frame decoding aborted, we are flushing.");
+ else
+ GST_ELEMENT_ERROR (self, RESOURCE, WRITE,
+ ("No more picture buffer available."), (NULL));
+ return FALSE;
+ }
+
+ frame->output_buffer = buffer;
+ return TRUE;
+}
+
+static gboolean
+gst_v4l2_codec_h265_dec_submit_bitstream (GstV4l2CodecH265Dec * self,
+ GstH265Picture * picture, guint flags)
+{
+ GstV4l2Request *prev_request, *request = NULL;
+ gsize bytesused;
+ gboolean ret = FALSE;
+ gint num_controls = 0;
+
+ /* *INDENT-OFF* */
+ /* Reserve space for controls */
+ struct v4l2_ext_control control[] = {
+ { }, /* SPS */
+ { }, /* PPS */
+ { }, /* DECODE_PARAMS */
+ { }, /* SLICE_PARAMS */
+ { }, /* SCALING_MATRIX */
+ { }, /* ENTRY_POINT_OFFSETS */
+ };
+ /* *INDENT-ON* */
+
+ prev_request = gst_h265_picture_get_user_data (picture);
+
+ bytesused = self->bitstream_map.size;
+ gst_memory_unmap (self->bitstream, &self->bitstream_map);
+ self->bitstream_map = (GstMapInfo) GST_MAP_INFO_INIT;
+ gst_memory_resize (self->bitstream, 0, bytesused);
+
+ if (prev_request) {
+ request = gst_v4l2_decoder_alloc_sub_request (self->decoder, prev_request,
+ self->bitstream);
+ } else {
+ GstVideoCodecFrame *frame;
+
+ frame = gst_video_decoder_get_frame (GST_VIDEO_DECODER (self),
+ picture->system_frame_number);
+ g_return_val_if_fail (frame, FALSE);
+
+ if (!gst_v4l2_codec_h265_dec_ensure_output_buffer (self, frame))
+ goto done;
+
+ request = gst_v4l2_decoder_alloc_request (self->decoder,
+ picture->system_frame_number, self->bitstream, frame->output_buffer);
+
+ gst_video_codec_frame_unref (frame);
+ }
+
+ if (!request) {
+ GST_ELEMENT_ERROR (self, RESOURCE, NO_SPACE_LEFT,
+ ("Failed to allocate a media request object."), (NULL));
+ goto done;
+ }
+
+ if (self->need_sequence) {
+ control[num_controls].id = V4L2_CID_STATELESS_HEVC_SPS;
+ control[num_controls].ptr = &self->sps;
+ control[num_controls].size = sizeof (self->sps);
+ num_controls++;
+ self->need_sequence = FALSE;
+ }
+
+ if (self->first_slice) {
+ control[num_controls].id = V4L2_CID_STATELESS_HEVC_PPS;
+ control[num_controls].ptr = &self->pps;
+ control[num_controls].size = sizeof (self->pps);
+ num_controls++;
+
+ if (self->support_scaling_matrix) {
+ control[num_controls].id = V4L2_CID_STATELESS_HEVC_SCALING_MATRIX;
+ control[num_controls].ptr = &self->scaling_matrix;
+ control[num_controls].size = sizeof (self->scaling_matrix);
+ num_controls++;
+ }
+
+ control[num_controls].id = V4L2_CID_STATELESS_HEVC_DECODE_PARAMS;
+ control[num_controls].ptr = &self->decode_params;
+ control[num_controls].size = sizeof (self->decode_params);
+ num_controls++;
+
+ self->first_slice = FALSE;
+ }
+
+ /* Slice parameters are only filled for slice based or frame based with
+ * slices decoders */
+ if (self->num_slices && !is_frame_based (self)) {
+ control[num_controls].id = V4L2_CID_STATELESS_HEVC_SLICE_PARAMS;
+ control[num_controls].ptr = self->slice_params->data;
+ control[num_controls].size = g_array_get_element_size (self->slice_params)
+ * self->num_slices;
+ num_controls++;
+
+ if (self->support_entry_point_offsets && self->entry_point_offsets->len) {
+ control[num_controls].id = V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSETS;
+ control[num_controls].ptr = self->entry_point_offsets->data;
+ control[num_controls].size =
+ g_array_get_element_size (self->entry_point_offsets)
+ * self->entry_point_offsets->len;
+ num_controls++;
+ }
+ }
+
+ if (num_controls > G_N_ELEMENTS (control))
+ g_error ("Set too many controls, increase control[] size");
+
+ if (!gst_v4l2_decoder_set_controls (self->decoder, request, control,
+ num_controls)) {
+ GST_ELEMENT_ERROR (self, RESOURCE, WRITE,
+ ("Driver did not accept the bitstream parameters."), (NULL));
+ goto done;
+ }
+
+ if (!gst_v4l2_request_queue (request, flags)) {
+ GST_ELEMENT_ERROR (self, RESOURCE, WRITE,
+ ("Driver did not accept the decode request."), (NULL));
+ goto done;
+ }
+
+ gst_h265_picture_set_user_data (picture, g_steal_pointer (&request),
+ (GDestroyNotify) gst_v4l2_request_unref);
+ ret = TRUE;
+
+done:
+ if (request)
+ gst_v4l2_request_unref (request);
+
+ gst_v4l2_codec_h265_dec_reset_picture (self);
+
+ return ret;
+}
+
+static GstFlowReturn
+gst_v4l2_codec_h265_dec_decode_slice (GstH265Decoder * decoder,
+ GstH265Picture * picture, GstH265Slice * slice,
+ GArray * ref_pic_list0, GArray * ref_pic_list1)
+{
+ GstV4l2CodecH265Dec *self = GST_V4L2_CODEC_H265_DEC (decoder);
+ gsize sc_off = 0;
+ gsize nal_size;
+ guint8 *bitstream_data;
+
+ if (!is_frame_based (self)) {
+ if (is_slice_based (self)) {
+ if (self->bitstream_map.size) {
+ /* In slice mode, we submit the pending slice asking the accelerator to
+ * hold on the picture */
+ if (!gst_v4l2_codec_h265_dec_submit_bitstream (self, picture,
+ V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF)
+ || !gst_v4l2_codec_h265_dec_ensure_bitstream (self))
+ return GST_FLOW_ERROR;
+ }
+ }
+ /* in frame based mode with slices, we need to provide the required data for
+ * the whole frame, therefore we don't submit the bitstream here */
+ gst_v4l2_codec_h265_dec_fill_slice_params (self, slice, picture);
+ gst_v4l2_codec_h265_dec_fill_references (self, ref_pic_list0,
+ ref_pic_list1);
+ }
+
+ /* if it is the first slice segment provide the short and long term
+ * reference pictures set size */
+ if (slice->header.first_slice_segment_in_pic_flag) {
+ struct v4l2_ctrl_hevc_decode_params *decode_params = &self->decode_params;
+
+ decode_params->short_term_ref_pic_set_size =
+ slice->header.short_term_ref_pic_set_size;
+ decode_params->long_term_ref_pic_set_size =
+ slice->header.long_term_ref_pic_set_size;
+ }
+
+ bitstream_data = self->bitstream_map.data + self->bitstream_map.size;
+
+ if (needs_start_codes (self))
+ sc_off = 3;
+ nal_size = sc_off + slice->nalu.size;
+
+ if (self->bitstream_map.size + nal_size > self->bitstream_map.maxsize) {
+ GST_ELEMENT_ERROR (decoder, RESOURCE, NO_SPACE_LEFT,
+ ("Not enough space to send all slice of an H265 frame."), (NULL));
+ return GST_FLOW_ERROR;
+ }
+
+ if (needs_start_codes (self)) {
+ bitstream_data[0] = 0x00;
+ bitstream_data[1] = 0x00;
+ bitstream_data[2] = 0x01;
+ }
+
+ memcpy (bitstream_data + sc_off, slice->nalu.data + slice->nalu.offset,
+ slice->nalu.size);
+ self->bitstream_map.size += nal_size;
+
+ return GST_FLOW_OK;
+}
+
+static GstFlowReturn
+gst_v4l2_codec_h265_dec_end_picture (GstH265Decoder * decoder,
+ GstH265Picture * picture)
+{
+ GstV4l2CodecH265Dec *self = GST_V4L2_CODEC_H265_DEC (decoder);
+
+ if (!gst_v4l2_codec_h265_dec_submit_bitstream (self, picture, 0))
+ return GST_FLOW_ERROR;
+
+ return GST_FLOW_OK;
+}
+
+static guint
+gst_v4l2_codec_h265_dec_get_preferred_output_delay (GstH265Decoder * decoder,
+ gboolean is_live)
+{
+
+ GstV4l2CodecH265Dec *self = GST_V4L2_CODEC_H265_DEC (decoder);
+ guint delay;
+
+ if (is_live)
+ delay = 0;
+ else
+ delay = 1;
+
+ gst_v4l2_decoder_set_render_delay (self->decoder, delay);
+ return delay;
+}
+
+static void
+gst_v4l2_codec_h265_dec_set_flushing (GstV4l2CodecH265Dec * self,
+ gboolean flushing)
+{
+ if (self->sink_allocator)
+ gst_v4l2_codec_allocator_set_flushing (self->sink_allocator, flushing);
+ if (self->src_allocator)
+ gst_v4l2_codec_allocator_set_flushing (self->src_allocator, flushing);
+}
+
+static gboolean
+gst_v4l2_codec_h265_dec_flush (GstVideoDecoder * decoder)
+{
+ GstV4l2CodecH265Dec *self = GST_V4L2_CODEC_H265_DEC (decoder);
+
+ GST_DEBUG_OBJECT (self, "Flushing decoder state.");
+
+ gst_v4l2_decoder_flush (self->decoder);
+ gst_v4l2_codec_h265_dec_set_flushing (self, FALSE);
+
+ return GST_VIDEO_DECODER_CLASS (parent_class)->flush (decoder);
+}
+
+static gboolean
+gst_v4l2_codec_h265_dec_sink_event (GstVideoDecoder * decoder, GstEvent * event)
+{
+ GstV4l2CodecH265Dec *self = GST_V4L2_CODEC_H265_DEC (decoder);
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_FLUSH_START:
+ GST_DEBUG_OBJECT (self, "flush start");
+ gst_v4l2_codec_h265_dec_set_flushing (self, TRUE);
+ break;
+ default:
+ break;
+ }
+
+ return GST_VIDEO_DECODER_CLASS (parent_class)->sink_event (decoder, event);
+}
+
+static GstStateChangeReturn
+gst_v4l2_codec_h265_dec_change_state (GstElement * element,
+ GstStateChange transition)
+{
+ GstV4l2CodecH265Dec *self = GST_V4L2_CODEC_H265_DEC (element);
+
+ if (transition == GST_STATE_CHANGE_PAUSED_TO_READY)
+ gst_v4l2_codec_h265_dec_set_flushing (self, TRUE);
+
+ return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+}
+
+static void
+gst_v4l2_codec_h265_dec_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstV4l2CodecH265Dec *self = GST_V4L2_CODEC_H265_DEC (object);
+ GObject *dec = G_OBJECT (self->decoder);
+
+ switch (prop_id) {
+ default:
+ gst_v4l2_decoder_set_property (dec, prop_id - PROP_LAST, value, pspec);
+ break;
+ }
+}
+
+static void
+gst_v4l2_codec_h265_dec_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec)
+{
+ GstV4l2CodecH265Dec *self = GST_V4L2_CODEC_H265_DEC (object);
+ GObject *dec = G_OBJECT (self->decoder);
+
+ switch (prop_id) {
+ default:
+ gst_v4l2_decoder_get_property (dec, prop_id - PROP_LAST, value, pspec);
+ break;
+ }
+}
+
+static void
+gst_v4l2_codec_h265_dec_init (GstV4l2CodecH265Dec * self)
+{
+}
+
+static void
+gst_v4l2_codec_h265_dec_subinit (GstV4l2CodecH265Dec * self,
+ GstV4l2CodecH265DecClass * klass)
+{
+ self->decoder = gst_v4l2_decoder_new (klass->device);
+ gst_video_info_init (&self->vinfo);
+ self->slice_params = g_array_sized_new (FALSE, TRUE,
+ sizeof (struct v4l2_ctrl_hevc_slice_params), 4);
+ g_array_set_size (self->slice_params, 4);
+ self->entry_point_offsets = g_array_sized_new (FALSE, TRUE,
+ sizeof (guint32), 4);
+}
+
+static void
+gst_v4l2_codec_h265_dec_dispose (GObject * object)
+{
+ GstV4l2CodecH265Dec *self = GST_V4L2_CODEC_H265_DEC (object);
+
+ g_clear_object (&self->decoder);
+ g_clear_pointer (&self->slice_params, g_array_unref);
+
+ G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+static void
+gst_v4l2_codec_h265_dec_class_init (GstV4l2CodecH265DecClass * klass)
+{
+}
+
+static void
+gst_v4l2_codec_h265_dec_subclass_init (GstV4l2CodecH265DecClass * klass,
+ GstV4l2CodecDevice * device)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+ GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+ GstVideoDecoderClass *decoder_class = GST_VIDEO_DECODER_CLASS (klass);
+ GstH265DecoderClass *h265decoder_class = GST_H265_DECODER_CLASS (klass);
+
+ gobject_class->set_property = gst_v4l2_codec_h265_dec_set_property;
+ gobject_class->get_property = gst_v4l2_codec_h265_dec_get_property;
+ gobject_class->dispose = gst_v4l2_codec_h265_dec_dispose;
+
+ gst_element_class_set_static_metadata (element_class,
+ "V4L2 Stateless H.265 Video Decoder",
+ "Codec/Decoder/Video/Hardware",
+ "A V4L2 based H.265 video decoder",
+ "Nicolas Dufresne <nicolas.dufresne@collabora.com>");
+
+ gst_element_class_add_static_pad_template (element_class, &sink_template);
+ gst_element_class_add_static_pad_template (element_class, &src_template);
+ element_class->change_state =
+ GST_DEBUG_FUNCPTR (gst_v4l2_codec_h265_dec_change_state);
+
+ decoder_class->open = GST_DEBUG_FUNCPTR (gst_v4l2_codec_h265_dec_open);
+ decoder_class->close = GST_DEBUG_FUNCPTR (gst_v4l2_codec_h265_dec_close);
+ decoder_class->stop = GST_DEBUG_FUNCPTR (gst_v4l2_codec_h265_dec_stop);
+ decoder_class->negotiate =
+ GST_DEBUG_FUNCPTR (gst_v4l2_codec_h265_dec_negotiate);
+ decoder_class->decide_allocation =
+ GST_DEBUG_FUNCPTR (gst_v4l2_codec_h265_dec_decide_allocation);
+ decoder_class->flush = GST_DEBUG_FUNCPTR (gst_v4l2_codec_h265_dec_flush);
+ decoder_class->sink_event =
+ GST_DEBUG_FUNCPTR (gst_v4l2_codec_h265_dec_sink_event);
+
+ h265decoder_class->new_sequence =
+ GST_DEBUG_FUNCPTR (gst_v4l2_codec_h265_dec_new_sequence);
+ h265decoder_class->output_picture =
+ GST_DEBUG_FUNCPTR (gst_v4l2_codec_h265_dec_output_picture);
+ h265decoder_class->start_picture =
+ GST_DEBUG_FUNCPTR (gst_v4l2_codec_h265_dec_start_picture);
+ h265decoder_class->decode_slice =
+ GST_DEBUG_FUNCPTR (gst_v4l2_codec_h265_dec_decode_slice);
+ h265decoder_class->end_picture =
+ GST_DEBUG_FUNCPTR (gst_v4l2_codec_h265_dec_end_picture);
+ h265decoder_class->get_preferred_output_delay =
+ GST_DEBUG_FUNCPTR (gst_v4l2_codec_h265_dec_get_preferred_output_delay);
+
+ klass->device = device;
+ gst_v4l2_decoder_install_properties (gobject_class, PROP_LAST, device);
+}
+
+void
+gst_v4l2_codec_h265_dec_register (GstPlugin * plugin, GstV4l2Decoder * decoder,
+ GstV4l2CodecDevice * device, guint rank)
+{
+ GstCaps *src_caps;
+ guint version;
+
+ GST_DEBUG_CATEGORY_INIT (v4l2_h265dec_debug, "v4l2codecs-h265dec", 0,
+ "V4L2 stateless h265 decoder");
+
+ if (!gst_v4l2_decoder_set_sink_fmt (decoder, V4L2_PIX_FMT_HEVC_SLICE,
+ 320, 240, 8))
+ return;
+ src_caps = gst_v4l2_decoder_enum_src_formats (decoder);
+
+ if (gst_caps_is_empty (src_caps)) {
+ GST_WARNING ("Not registering H265 decoder since it produces no "
+ "supported format");
+ goto done;
+ }
+
+ version = gst_v4l2_decoder_get_version (decoder);
+ if (version < V4L2_MIN_KERNEL_VERSION)
+ GST_WARNING ("V4L2 API v%u.%u too old, at least v%u.%u required",
+ (version >> 16) & 0xff, (version >> 8) & 0xff,
+ V4L2_MIN_KERNEL_VER_MAJOR, V4L2_MIN_KERNEL_VER_MINOR);
+
+ gst_v4l2_decoder_register (plugin, GST_TYPE_V4L2_CODEC_H265_DEC,
+ (GClassInitFunc) gst_v4l2_codec_h265_dec_subclass_init,
+ gst_mini_object_ref (GST_MINI_OBJECT (device)),
+ (GInstanceInitFunc) gst_v4l2_codec_h265_dec_subinit,
+ "v4l2sl%sh265dec", device, rank, NULL);
+
+done:
+ gst_caps_unref (src_caps);
+}
projects / platform / upstream / gstreamer.git / commitdiff