/* GStreamer * Copyright (C) 2017 Ericsson AB. All rights reserved. * Copyright (C) 2019 Seungha Yang * Copyright (C) 2020 Seungha Yang * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * 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. * * Copyright 2015 The Chromium Authors. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /** * SECTION:element-nvh264sldec * @title: nvh264sldec * * GstCodecs based NVIDIA H.264 video decoder * * ## Example launch line * ``` * gst-launch-1.0 filesrc location=/path/to/h264/file ! parsebin ! nvh264sldec ! videoconvert ! autovideosink * ``` * * Since: 1.18 * */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "gstnvh264dec.h" #include "gstnvdecoder.h" #include GST_DEBUG_CATEGORY_STATIC (gst_nv_h264_dec_debug); #define GST_CAT_DEFAULT gst_nv_h264_dec_debug typedef struct _GstNvH264Dec { GstH264Decoder parent; GstNvDecoder *decoder; CUVIDPICPARAMS params; /* slice buffer which will be passed to CUVIDPICPARAMS::pBitstreamData */ guint8 *bitstream_buffer; /* allocated memory size of bitstream_buffer */ gsize bitstream_buffer_alloc_size; /* current offset of bitstream_buffer (per frame) */ gsize bitstream_buffer_offset; guint *slice_offsets; guint slice_offsets_alloc_len; guint num_slices; guint width, height; guint coded_width, coded_height; guint bitdepth; guint chroma_format_idc; gint max_dpb_size; gboolean interlaced; GArray *ref_list; guint num_output_surfaces; guint init_max_width; guint init_max_height; gint max_display_delay; } GstNvH264Dec; typedef struct _GstNvH264DecClass { GstH264DecoderClass parent_class; guint cuda_device_id; gint64 adapter_luid; guint max_width; guint max_height; } GstNvH264DecClass; enum { PROP_0, PROP_CUDA_DEVICE_ID, PROP_NUM_OUTPUT_SURFACES, PROP_INIT_MAX_WIDTH, PROP_INIT_MAX_HEIGHT, PROP_MAX_DISPLAY_DELAY, }; #define DEFAULT_NUM_OUTPUT_SURFACES 1 #define DEFAULT_MAX_DISPLAY_DELAY -1 static GTypeClass *parent_class = nullptr; #define GST_NV_H264_DEC(object) ((GstNvH264Dec *) (object)) #define GST_NV_H264_DEC_GET_CLASS(object) \ (G_TYPE_INSTANCE_GET_CLASS ((object),G_TYPE_FROM_INSTANCE (object),GstNvH264DecClass)) static void gst_nv_h264_decoder_finalize (GObject * object); static void gst_nv_h264_dec_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_nv_h264_dec_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static void gst_nv_h264_dec_set_context (GstElement * element, GstContext * context); static gboolean gst_nv_h264_dec_open (GstVideoDecoder * decoder); static gboolean gst_nv_h264_dec_close (GstVideoDecoder * decoder); static gboolean gst_nv_h264_dec_stop (GstVideoDecoder * decoder); static gboolean gst_nv_h264_dec_negotiate (GstVideoDecoder * decoder); static gboolean gst_nv_h264_dec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query); static gboolean gst_nv_h264_dec_sink_query (GstVideoDecoder * decoder, GstQuery * query); static gboolean gst_nv_h264_dec_src_query (GstVideoDecoder * decoder, GstQuery * query); static gboolean gst_nv_h264_dec_sink_event (GstVideoDecoder * decoder, GstEvent * event); /* GstH264Decoder */ static GstFlowReturn gst_nv_h264_dec_new_sequence (GstH264Decoder * decoder, const GstH264SPS * sps, gint max_dpb_size); static GstFlowReturn gst_nv_h264_dec_new_picture (GstH264Decoder * decoder, GstVideoCodecFrame * frame, GstH264Picture * picture); static GstFlowReturn gst_nv_h264_dec_new_field_picture (GstH264Decoder * decoder, GstH264Picture * first_field, GstH264Picture * second_field); static GstFlowReturn gst_nv_h264_dec_output_picture (GstH264Decoder * decoder, GstVideoCodecFrame * frame, GstH264Picture * picture); static GstFlowReturn gst_nv_h264_dec_start_picture (GstH264Decoder * decoder, GstH264Picture * picture, GstH264Slice * slice, GstH264Dpb * dpb); static GstFlowReturn gst_nv_h264_dec_decode_slice (GstH264Decoder * decoder, GstH264Picture * picture, GstH264Slice * slice, GArray * ref_pic_list0, GArray * ref_pic_list1); static GstFlowReturn gst_nv_h264_dec_end_picture (GstH264Decoder * decoder, GstH264Picture * picture); static guint gst_nv_h264_dec_get_preferred_output_delay (GstH264Decoder * decoder, gboolean live); static void gst_nv_h264_dec_class_init (GstNvH264DecClass * klass, GstNvDecoderClassData * cdata) { GObjectClass *object_class = G_OBJECT_CLASS (klass); GstElementClass *element_class = GST_ELEMENT_CLASS (klass); GstVideoDecoderClass *decoder_class = GST_VIDEO_DECODER_CLASS (klass); GstH264DecoderClass *h264decoder_class = GST_H264_DECODER_CLASS (klass); object_class->finalize = gst_nv_h264_decoder_finalize; object_class->set_property = gst_nv_h264_dec_set_property; object_class->get_property = gst_nv_h264_dec_get_property; /** * GstNvH264Dec:cuda-device-id: * * Assigned CUDA device id * * Since: 1.22 */ g_object_class_install_property (object_class, PROP_CUDA_DEVICE_ID, g_param_spec_uint ("cuda-device-id", "CUDA device id", "Assigned CUDA device id", 0, G_MAXINT, 0, (GParamFlags) (G_PARAM_READABLE | G_PARAM_STATIC_STRINGS))); /** * GstNvH264Dec:num-output-surfaces: * * The number of output surfaces (0 = auto, 1 = always copy). * This property will be used to calculate * the CUVIDDECODECREATEINFO.ulNumOutputSurfaces parameter in case of * CUDA output mode. * * Since: 1.24 */ g_object_class_install_property (object_class, PROP_NUM_OUTPUT_SURFACES, g_param_spec_uint ("num-output-surfaces", "Num Output Surfaces", "Maximum number of output surfaces simultaneously mapped in CUDA " "output mode (0 = auto, 1 = always copy)", 0, 64, DEFAULT_NUM_OUTPUT_SURFACES, (GParamFlags) (GST_PARAM_MUTABLE_READY | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); /** * GstNvH264Dec:init-max-width: * * Initial CUVIDDECODECREATEINFO.ulMaxWidth value * * Since: 1.24 */ g_object_class_install_property (object_class, PROP_INIT_MAX_WIDTH, g_param_spec_uint ("init-max-width", "Initial Maximum Width", "Expected maximum coded width of stream. This value is used to " "pre-allocate higher dimension of output surfaces than " "that of input stream, in order to help decoder reconfiguration", 0, cdata->max_width, 0, (GParamFlags) (GST_PARAM_MUTABLE_READY | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); /** * GstNvH264Dec:init-max-height: * * Initial CUVIDDECODECREATEINFO.ulMaxHeight value * * Since: 1.24 */ g_object_class_install_property (object_class, PROP_INIT_MAX_HEIGHT, g_param_spec_uint ("init-max-height", "Initial Maximum Height", "Expected maximum coded height of stream. This value is used to " "pre-allocate higher dimension of output surfaces than " "that of input stream, in order to help decoder reconfiguration", 0, cdata->max_height, 0, (GParamFlags) (GST_PARAM_MUTABLE_READY | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); /** * GstNvH264Dec:max-display-delay: * * Maximum display delay * * Since: 1.24 */ g_object_class_install_property (object_class, PROP_MAX_DISPLAY_DELAY, g_param_spec_int ("max-display-delay", "Max Display Delay", "Improves pipelining of decode with display, 0 means no delay " "(auto = -1)", -1, 16, DEFAULT_MAX_DISPLAY_DELAY, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); element_class->set_context = GST_DEBUG_FUNCPTR (gst_nv_h264_dec_set_context); parent_class = (GTypeClass *) g_type_class_peek_parent (klass); gst_element_class_set_static_metadata (element_class, "NVDEC H.264 Decoder", "Codec/Decoder/Video/Hardware", "NVIDIA H.264 video decoder", "Seungha Yang "); gst_element_class_add_pad_template (element_class, gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, cdata->sink_caps)); gst_element_class_add_pad_template (element_class, gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, cdata->src_caps)); decoder_class->open = GST_DEBUG_FUNCPTR (gst_nv_h264_dec_open); decoder_class->close = GST_DEBUG_FUNCPTR (gst_nv_h264_dec_close); decoder_class->stop = GST_DEBUG_FUNCPTR (gst_nv_h264_dec_stop); decoder_class->negotiate = GST_DEBUG_FUNCPTR (gst_nv_h264_dec_negotiate); decoder_class->decide_allocation = GST_DEBUG_FUNCPTR (gst_nv_h264_dec_decide_allocation); decoder_class->sink_query = GST_DEBUG_FUNCPTR (gst_nv_h264_dec_sink_query); decoder_class->src_query = GST_DEBUG_FUNCPTR (gst_nv_h264_dec_src_query); decoder_class->sink_event = GST_DEBUG_FUNCPTR (gst_nv_h264_dec_sink_event); h264decoder_class->new_sequence = GST_DEBUG_FUNCPTR (gst_nv_h264_dec_new_sequence); h264decoder_class->new_picture = GST_DEBUG_FUNCPTR (gst_nv_h264_dec_new_picture); h264decoder_class->new_field_picture = GST_DEBUG_FUNCPTR (gst_nv_h264_dec_new_field_picture); h264decoder_class->output_picture = GST_DEBUG_FUNCPTR (gst_nv_h264_dec_output_picture); h264decoder_class->start_picture = GST_DEBUG_FUNCPTR (gst_nv_h264_dec_start_picture); h264decoder_class->decode_slice = GST_DEBUG_FUNCPTR (gst_nv_h264_dec_decode_slice); h264decoder_class->end_picture = GST_DEBUG_FUNCPTR (gst_nv_h264_dec_end_picture); h264decoder_class->get_preferred_output_delay = GST_DEBUG_FUNCPTR (gst_nv_h264_dec_get_preferred_output_delay); klass->cuda_device_id = cdata->cuda_device_id; klass->adapter_luid = cdata->adapter_luid; klass->max_width = cdata->max_width; klass->max_height = cdata->max_height; gst_caps_unref (cdata->sink_caps); gst_caps_unref (cdata->src_caps); g_free (cdata); } static void gst_nv_h264_dec_init (GstNvH264Dec * self) { GstNvH264DecClass *klass = GST_NV_H264_DEC_GET_CLASS (self); self->decoder = gst_nv_decoder_new (klass->cuda_device_id, klass->adapter_luid); self->ref_list = g_array_sized_new (FALSE, TRUE, sizeof (GstH264Picture *), 16); g_array_set_clear_func (self->ref_list, (GDestroyNotify) gst_clear_h264_picture); self->num_output_surfaces = DEFAULT_NUM_OUTPUT_SURFACES; self->max_display_delay = DEFAULT_MAX_DISPLAY_DELAY; } static void gst_nv_h264_decoder_finalize (GObject * object) { GstNvH264Dec *self = GST_NV_H264_DEC (object); g_array_unref (self->ref_list); gst_object_unref (self->decoder); G_OBJECT_CLASS (parent_class)->finalize (object); } static void gst_nv_h264_dec_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstNvH264Dec *self = GST_NV_H264_DEC (object); switch (prop_id) { case PROP_NUM_OUTPUT_SURFACES: self->num_output_surfaces = g_value_get_uint (value); break; case PROP_INIT_MAX_WIDTH: self->init_max_width = g_value_get_uint (value); break; case PROP_INIT_MAX_HEIGHT: self->init_max_height = g_value_get_uint (value); break; case PROP_MAX_DISPLAY_DELAY: self->max_display_delay = g_value_get_int (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_nv_h264_dec_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstNvH264Dec *self = GST_NV_H264_DEC (object); GstNvH264DecClass *klass = GST_NV_H264_DEC_GET_CLASS (object); switch (prop_id) { case PROP_CUDA_DEVICE_ID: g_value_set_uint (value, klass->cuda_device_id); break; case PROP_NUM_OUTPUT_SURFACES: g_value_set_uint (value, self->num_output_surfaces); break; case PROP_INIT_MAX_WIDTH: g_value_set_uint (value, self->init_max_width); break; case PROP_INIT_MAX_HEIGHT: g_value_set_uint (value, self->init_max_height); break; case PROP_MAX_DISPLAY_DELAY: g_value_set_int (value, self->max_display_delay); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_nv_h264_dec_set_context (GstElement * element, GstContext * context) { GstNvH264Dec *self = GST_NV_H264_DEC (element); gst_nv_decoder_handle_set_context (self->decoder, element, context); GST_ELEMENT_CLASS (parent_class)->set_context (element, context); } /* Clear all codec specific (e.g., SPS) data */ static void gst_d3d11_h264_dec_reset (GstNvH264Dec * self) { self->width = 0; self->height = 0; self->coded_width = 0; self->coded_height = 0; self->bitdepth = 0; self->chroma_format_idc = 0; self->max_dpb_size = 0; self->interlaced = FALSE; } static gboolean gst_nv_h264_dec_open (GstVideoDecoder * decoder) { GstNvH264Dec *self = GST_NV_H264_DEC (decoder); gst_d3d11_h264_dec_reset (self); return gst_nv_decoder_open (self->decoder, GST_ELEMENT (decoder)); } static gboolean gst_nv_h264_dec_close (GstVideoDecoder * decoder) { GstNvH264Dec *self = GST_NV_H264_DEC (decoder); g_clear_pointer (&self->bitstream_buffer, g_free); g_clear_pointer (&self->slice_offsets, g_free); self->bitstream_buffer_alloc_size = 0; self->slice_offsets_alloc_len = 0; return gst_nv_decoder_close (self->decoder); } static gboolean gst_nv_h264_dec_stop (GstVideoDecoder * decoder) { GstNvH264Dec *self = GST_NV_H264_DEC (decoder); gboolean ret; ret = GST_VIDEO_DECODER_CLASS (parent_class)->stop (decoder); gst_nv_decoder_reset (self->decoder); return ret; } static gboolean gst_nv_h264_dec_negotiate (GstVideoDecoder * decoder) { GstNvH264Dec *self = GST_NV_H264_DEC (decoder); GstH264Decoder *h264dec = GST_H264_DECODER (decoder); GST_DEBUG_OBJECT (self, "negotiate"); if (!gst_nv_decoder_negotiate (self->decoder, decoder, h264dec->input_state)) return FALSE; return GST_VIDEO_DECODER_CLASS (parent_class)->negotiate (decoder); } static gboolean gst_nv_h264_dec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query) { GstNvH264Dec *self = GST_NV_H264_DEC (decoder); if (!gst_nv_decoder_decide_allocation (self->decoder, decoder, query)) { GST_WARNING_OBJECT (self, "Failed to handle decide allocation"); return FALSE; } return GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder, query); } static gboolean gst_nv_h264_dec_sink_query (GstVideoDecoder * decoder, GstQuery * query) { GstNvH264Dec *self = GST_NV_H264_DEC (decoder); if (gst_nv_decoder_handle_query (self->decoder, GST_ELEMENT (decoder), query)) return TRUE; return GST_VIDEO_DECODER_CLASS (parent_class)->sink_query (decoder, query); } static gboolean gst_nv_h264_dec_src_query (GstVideoDecoder * decoder, GstQuery * query) { GstNvH264Dec *self = GST_NV_H264_DEC (decoder); if (gst_nv_decoder_handle_query (self->decoder, GST_ELEMENT (decoder), query)) return TRUE; return GST_VIDEO_DECODER_CLASS (parent_class)->src_query (decoder, query); } static gboolean gst_nv_h264_dec_sink_event (GstVideoDecoder * decoder, GstEvent * event) { GstNvH264Dec *self = GST_NV_H264_DEC (decoder); switch (GST_EVENT_TYPE (event)) { case GST_EVENT_FLUSH_START: gst_nv_decoder_set_flushing (self->decoder, TRUE); break; case GST_EVENT_FLUSH_STOP: gst_nv_decoder_set_flushing (self->decoder, FALSE); break; default: break; } return GST_VIDEO_DECODER_CLASS (parent_class)->sink_event (decoder, event); } static GstFlowReturn gst_nv_h264_dec_new_sequence (GstH264Decoder * decoder, const GstH264SPS * sps, gint max_dpb_size) { GstNvH264Dec *self = GST_NV_H264_DEC (decoder); GstNvH264DecClass *klass = GST_NV_H264_DEC_GET_CLASS (self); guint crop_width, crop_height; gboolean modified = FALSE; gboolean interlaced; guint max_width, max_height; GST_LOG_OBJECT (self, "new sequence"); if (sps->frame_cropping_flag) { crop_width = sps->crop_rect_width; crop_height = sps->crop_rect_height; } else { crop_width = sps->width; crop_height = sps->height; } if (self->width != crop_width || self->height != crop_height || self->coded_width != (guint) sps->width || self->coded_height != (guint) sps->height) { GST_INFO_OBJECT (self, "resolution changed %dx%d (%dx%d)", crop_width, crop_height, sps->width, sps->height); self->width = crop_width; self->height = crop_height; self->coded_width = sps->width; self->coded_height = sps->height; modified = TRUE; } if (self->bitdepth != (guint) sps->bit_depth_luma_minus8 + 8) { GST_INFO_OBJECT (self, "bitdepth changed"); self->bitdepth = sps->bit_depth_luma_minus8 + 8; modified = TRUE; } if (self->chroma_format_idc != sps->chroma_format_idc) { GST_INFO_OBJECT (self, "chroma format changed"); self->chroma_format_idc = sps->chroma_format_idc; modified = TRUE; } interlaced = !sps->frame_mbs_only_flag; if (self->interlaced != interlaced) { GST_INFO_OBJECT (self, "interlaced sequence changed"); self->interlaced = interlaced; modified = TRUE; } if (self->max_dpb_size < max_dpb_size) { GST_INFO_OBJECT (self, "Requires larger DPB size (%d -> %d)", self->max_dpb_size, max_dpb_size); modified = TRUE; } if (modified || !gst_nv_decoder_is_configured (self->decoder)) { GstVideoInfo info; GstVideoFormat out_format = GST_VIDEO_FORMAT_UNKNOWN; if (self->bitdepth == 8) { if (self->chroma_format_idc == 1) out_format = GST_VIDEO_FORMAT_NV12; else { GST_FIXME_OBJECT (self, "Could not support 8bits non-4:2:0 format"); } } else if (self->bitdepth == 10) { if (self->chroma_format_idc == 1) out_format = GST_VIDEO_FORMAT_P010_10LE; else { GST_FIXME_OBJECT (self, "Could not support 10bits non-4:2:0 format"); } } if (out_format == GST_VIDEO_FORMAT_UNKNOWN) { GST_ERROR_OBJECT (self, "Could not support bitdepth/chroma format"); return GST_FLOW_NOT_NEGOTIATED; } gst_video_info_set_format (&info, out_format, self->width, self->height); if (self->interlaced) GST_VIDEO_INFO_INTERLACE_MODE (&info) = GST_VIDEO_INTERLACE_MODE_MIXED; self->max_dpb_size = max_dpb_size; max_width = gst_nv_decoder_get_max_output_size (self->coded_width, self->init_max_width, klass->max_width); max_height = gst_nv_decoder_get_max_output_size (self->coded_height, self->init_max_height, klass->max_height); /* FIXME: add support cudaVideoCodec_H264_SVC and cudaVideoCodec_H264_MVC */ if (!gst_nv_decoder_configure (self->decoder, cudaVideoCodec_H264, &info, self->coded_width, self->coded_height, self->bitdepth, max_dpb_size, FALSE, self->num_output_surfaces, max_width, max_height)) { GST_ERROR_OBJECT (self, "Failed to configure decoder"); return GST_FLOW_NOT_NEGOTIATED; } if (!gst_video_decoder_negotiate (GST_VIDEO_DECODER (self))) { GST_ERROR_OBJECT (self, "Failed to negotiate with downstream"); return GST_FLOW_NOT_NEGOTIATED; } memset (&self->params, 0, sizeof (CUVIDPICPARAMS)); } return GST_FLOW_OK; } static GstFlowReturn gst_nv_h264_dec_new_picture (GstH264Decoder * decoder, GstVideoCodecFrame * frame, GstH264Picture * picture) { GstNvH264Dec *self = GST_NV_H264_DEC (decoder); return gst_nv_decoder_new_picture (self->decoder, GST_CODEC_PICTURE (picture)); } static GstFlowReturn gst_nv_h264_dec_new_field_picture (GstH264Decoder * decoder, GstH264Picture * first_field, GstH264Picture * second_field) { GstNvDecSurface *surface; surface = (GstNvDecSurface *) gst_h264_picture_get_user_data (first_field); if (!surface) { GST_ERROR_OBJECT (decoder, "No decoder frame in the first picture %p", first_field); return GST_FLOW_ERROR; } gst_h264_picture_set_user_data (second_field, gst_nv_dec_surface_ref (surface), (GDestroyNotify) gst_nv_dec_surface_unref); return GST_FLOW_OK; } static GstFlowReturn gst_nv_h264_dec_output_picture (GstH264Decoder * decoder, GstVideoCodecFrame * frame, GstH264Picture * picture) { GstNvH264Dec *self = GST_NV_H264_DEC (decoder); return gst_nv_decoder_output_picture (self->decoder, GST_VIDEO_DECODER (decoder), frame, GST_CODEC_PICTURE (picture), picture->buffer_flags); } static GstNvDecSurface * gst_nv_h264_dec_get_decoder_surface_from_picture (GstNvH264Dec * self, GstH264Picture * picture) { GstNvDecSurface *surface; surface = (GstNvDecSurface *) gst_h264_picture_get_user_data (picture); if (!surface) GST_DEBUG_OBJECT (self, "current picture does not have decoder surface"); return surface; } static void gst_nv_h264_dec_fill_scaling_list_4x4 (const GstH264PPS * pps, CUVIDH264PICPARAMS * params) { guint i; for (i = 0; i < G_N_ELEMENTS (params->WeightScale4x4); i++) gst_h264_quant_matrix_4x4_get_raster_from_zigzag (params->WeightScale4x4[i], pps->scaling_lists_4x4[i]); } static void gst_nv_h264_dec_fill_scaling_list_8x8 (const GstH264PPS * pps, CUVIDH264PICPARAMS * params) { guint i; for (i = 0; i < G_N_ELEMENTS (params->WeightScale8x8); i++) { gst_h264_quant_matrix_8x8_get_raster_from_zigzag (params->WeightScale8x8[i], pps->scaling_lists_8x8[i]); } } static void gst_nv_h264_dec_picture_params_from_sps (GstNvH264Dec * self, const GstH264SPS * sps, gboolean field_pic, CUVIDH264PICPARAMS * params) { params->residual_colour_transform_flag = sps->separate_colour_plane_flag; params->MbaffFrameFlag = sps->mb_adaptive_frame_field_flag && !field_pic; #define COPY_FIELD(f) \ (params)->f = (sps)->f COPY_FIELD (log2_max_frame_num_minus4); COPY_FIELD (pic_order_cnt_type); COPY_FIELD (log2_max_pic_order_cnt_lsb_minus4); COPY_FIELD (delta_pic_order_always_zero_flag); COPY_FIELD (frame_mbs_only_flag); COPY_FIELD (direct_8x8_inference_flag); COPY_FIELD (num_ref_frames); COPY_FIELD (bit_depth_luma_minus8); COPY_FIELD (bit_depth_chroma_minus8); COPY_FIELD (qpprime_y_zero_transform_bypass_flag); #undef COPY_FIELD } static void gst_nv_h264_dec_picture_params_from_pps (GstNvH264Dec * self, const GstH264PPS * pps, CUVIDH264PICPARAMS * params) { params->second_chroma_qp_index_offset = pps->second_chroma_qp_index_offset; #define COPY_FIELD(f) \ (params)->f = (pps)->f COPY_FIELD (entropy_coding_mode_flag); COPY_FIELD (pic_order_present_flag); COPY_FIELD (num_ref_idx_l0_active_minus1); COPY_FIELD (num_ref_idx_l1_active_minus1); COPY_FIELD (pic_init_qp_minus26); COPY_FIELD (weighted_pred_flag); COPY_FIELD (weighted_bipred_idc); COPY_FIELD (pic_init_qp_minus26); COPY_FIELD (deblocking_filter_control_present_flag); COPY_FIELD (redundant_pic_cnt_present_flag); COPY_FIELD (transform_8x8_mode_flag); COPY_FIELD (constrained_intra_pred_flag); COPY_FIELD (chroma_qp_index_offset); #undef COPY_FIELD gst_nv_h264_dec_fill_scaling_list_4x4 (pps, params); gst_nv_h264_dec_fill_scaling_list_8x8 (pps, params); } static void gst_nv_h264_dec_reset_bitstream_params (GstNvH264Dec * self) { self->bitstream_buffer_offset = 0; self->num_slices = 0; self->params.nBitstreamDataLen = 0; self->params.pBitstreamData = nullptr; self->params.nNumSlices = 0; self->params.pSliceDataOffsets = nullptr; } static void gst_nv_h264_dec_fill_dpb (GstNvH264Dec * self, GstH264Picture * ref, CUVIDH264DPBENTRY * dpb) { GstNvDecSurface *surface; dpb->not_existing = ref->nonexisting; dpb->PicIdx = -1; surface = gst_nv_h264_dec_get_decoder_surface_from_picture (self, ref); if (!surface) { dpb->not_existing = 1; } else if (!dpb->not_existing) { dpb->PicIdx = surface->index; } if (dpb->not_existing) return; if (GST_H264_PICTURE_IS_LONG_TERM_REF (ref)) { dpb->FrameIdx = ref->long_term_frame_idx; dpb->is_long_term = 1; } else { dpb->FrameIdx = ref->frame_num; dpb->is_long_term = 0; } switch (ref->field) { case GST_H264_PICTURE_FIELD_FRAME: dpb->FieldOrderCnt[0] = ref->top_field_order_cnt; dpb->FieldOrderCnt[1] = ref->bottom_field_order_cnt; dpb->used_for_reference = 0x3; break; case GST_H264_PICTURE_FIELD_TOP_FIELD: dpb->FieldOrderCnt[0] = ref->top_field_order_cnt; dpb->used_for_reference = 0x1; if (ref->other_field) { dpb->FieldOrderCnt[1] = ref->other_field->bottom_field_order_cnt; dpb->used_for_reference |= 0x2; } else { dpb->FieldOrderCnt[1] = 0; } break; case GST_H264_PICTURE_FIELD_BOTTOM_FIELD: dpb->FieldOrderCnt[1] = ref->bottom_field_order_cnt; dpb->used_for_reference = 0x2; if (ref->other_field) { dpb->FieldOrderCnt[0] = ref->other_field->bottom_field_order_cnt; dpb->used_for_reference |= 0x1; } else { dpb->FieldOrderCnt[0] = 0; } break; default: dpb->FieldOrderCnt[0] = 0; dpb->FieldOrderCnt[1] = 0; dpb->used_for_reference = 0; break; } } static GstFlowReturn gst_nv_h264_dec_start_picture (GstH264Decoder * decoder, GstH264Picture * picture, GstH264Slice * slice, GstH264Dpb * dpb) { GstNvH264Dec *self = GST_NV_H264_DEC (decoder); CUVIDPICPARAMS *params = &self->params; CUVIDH264PICPARAMS *h264_params = ¶ms->CodecSpecific.h264; const GstH264SliceHdr *slice_header = &slice->header; const GstH264SPS *sps; const GstH264PPS *pps; GstNvDecSurface *surface; GArray *ref_list = self->ref_list; guint i, ref_frame_idx; g_return_val_if_fail (slice_header->pps != nullptr, GST_FLOW_ERROR); g_return_val_if_fail (slice_header->pps->sequence != nullptr, GST_FLOW_ERROR); surface = gst_nv_h264_dec_get_decoder_surface_from_picture (self, picture); if (!surface) { GST_ERROR_OBJECT (self, "Couldn't get decoder frame frame picture %p", picture); return GST_FLOW_ERROR; } gst_nv_h264_dec_reset_bitstream_params (self); sps = slice_header->pps->sequence; pps = slice_header->pps; /* FIXME: update sps/pps related params only when it's required */ params->PicWidthInMbs = sps->pic_width_in_mbs_minus1 + 1; if (!sps->frame_mbs_only_flag) { params->FrameHeightInMbs = (sps->pic_height_in_map_units_minus1 + 1) << 1; } else { params->FrameHeightInMbs = sps->pic_height_in_map_units_minus1 + 1; } params->CurrPicIdx = surface->index; params->field_pic_flag = slice_header->field_pic_flag; params->bottom_field_flag = picture->field == GST_H264_PICTURE_FIELD_BOTTOM_FIELD; params->second_field = picture->second_field; if (picture->field == GST_H264_PICTURE_FIELD_TOP_FIELD) { h264_params->CurrFieldOrderCnt[0] = picture->top_field_order_cnt; h264_params->CurrFieldOrderCnt[1] = 0; } else if (picture->field == GST_H264_PICTURE_FIELD_BOTTOM_FIELD) { h264_params->CurrFieldOrderCnt[0] = 0; h264_params->CurrFieldOrderCnt[1] = picture->bottom_field_order_cnt; } else { h264_params->CurrFieldOrderCnt[0] = picture->top_field_order_cnt; h264_params->CurrFieldOrderCnt[1] = picture->bottom_field_order_cnt; } /* nBitstreamDataLen, pBitstreamData, nNumSlices and pSliceDataOffsets * will be set later */ params->ref_pic_flag = GST_H264_PICTURE_IS_REF (picture); /* will be updated later, if any slices belong to this frame is not * intra slice */ params->intra_pic_flag = 1; h264_params->frame_num = picture->frame_num; h264_params->ref_pic_flag = GST_H264_PICTURE_IS_REF (picture); gst_nv_h264_dec_picture_params_from_sps (self, sps, slice_header->field_pic_flag, h264_params); gst_nv_h264_dec_picture_params_from_pps (self, pps, h264_params); ref_frame_idx = 0; g_array_set_size (ref_list, 0); memset (&h264_params->dpb, 0, sizeof (h264_params->dpb)); gst_h264_dpb_get_pictures_short_term_ref (dpb, FALSE, FALSE, ref_list); for (i = 0; ref_frame_idx < 16 && i < ref_list->len; i++) { GstH264Picture *other = g_array_index (ref_list, GstH264Picture *, i); gst_nv_h264_dec_fill_dpb (self, other, &h264_params->dpb[ref_frame_idx]); ref_frame_idx++; } g_array_set_size (ref_list, 0); gst_h264_dpb_get_pictures_long_term_ref (dpb, FALSE, ref_list); for (i = 0; ref_frame_idx < 16 && i < ref_list->len; i++) { GstH264Picture *other = g_array_index (ref_list, GstH264Picture *, i); gst_nv_h264_dec_fill_dpb (self, other, &h264_params->dpb[ref_frame_idx]); ref_frame_idx++; } g_array_set_size (ref_list, 0); for (i = ref_frame_idx; i < 16; i++) h264_params->dpb[i].PicIdx = -1; return GST_FLOW_OK; } static GstFlowReturn gst_nv_h264_dec_decode_slice (GstH264Decoder * decoder, GstH264Picture * picture, GstH264Slice * slice, GArray * ref_pic_list0, GArray * ref_pic_list1) { GstNvH264Dec *self = GST_NV_H264_DEC (decoder); gsize new_size; GST_LOG_OBJECT (self, "Decode slice, nalu size %u", slice->nalu.size); if (self->slice_offsets_alloc_len < self->num_slices + 1) { self->slice_offsets_alloc_len = 2 * (self->num_slices + 1); self->slice_offsets = (guint *) g_realloc_n (self->slice_offsets, self->slice_offsets_alloc_len, sizeof (guint)); } self->slice_offsets[self->num_slices] = self->bitstream_buffer_offset; GST_LOG_OBJECT (self, "Slice offset %u for slice %d", self->slice_offsets[self->num_slices], self->num_slices); self->num_slices++; new_size = self->bitstream_buffer_offset + slice->nalu.size + 3; if (self->bitstream_buffer_alloc_size < new_size) { self->bitstream_buffer_alloc_size = 2 * new_size; self->bitstream_buffer = (guint8 *) g_realloc (self->bitstream_buffer, self->bitstream_buffer_alloc_size); } self->bitstream_buffer[self->bitstream_buffer_offset] = 0; self->bitstream_buffer[self->bitstream_buffer_offset + 1] = 0; self->bitstream_buffer[self->bitstream_buffer_offset + 2] = 1; memcpy (self->bitstream_buffer + self->bitstream_buffer_offset + 3, slice->nalu.data + slice->nalu.offset, slice->nalu.size); self->bitstream_buffer_offset = new_size; if (!GST_H264_IS_I_SLICE (&slice->header) && !GST_H264_IS_SI_SLICE (&slice->header)) self->params.intra_pic_flag = 0; return GST_FLOW_OK; } static GstFlowReturn gst_nv_h264_dec_end_picture (GstH264Decoder * decoder, GstH264Picture * picture) { GstNvH264Dec *self = GST_NV_H264_DEC (decoder); gboolean ret; CUVIDPICPARAMS *params = &self->params; params->nBitstreamDataLen = self->bitstream_buffer_offset; params->pBitstreamData = self->bitstream_buffer; params->nNumSlices = self->num_slices; params->pSliceDataOffsets = self->slice_offsets; GST_LOG_OBJECT (self, "End picture, bitstream len: %" G_GSIZE_FORMAT ", num slices %d", self->bitstream_buffer_offset, self->num_slices); ret = gst_nv_decoder_decode (self->decoder, &self->params); if (!ret) { GST_ERROR_OBJECT (self, "Failed to decode picture"); return GST_FLOW_ERROR; } return GST_FLOW_OK; } static guint gst_nv_h264_dec_get_preferred_output_delay (GstH264Decoder * decoder, gboolean live) { GstNvH264Dec *self = GST_NV_H264_DEC (decoder); if (self->max_display_delay >= 0) return self->max_display_delay; /* Prefer to zero latency for live pipeline */ if (live) return 0; return 2; } void gst_nv_h264_dec_register (GstPlugin * plugin, guint device_id, gint64 adapter_luid, guint rank, GstCaps * sink_caps, GstCaps * src_caps) { GType type; gchar *type_name; gchar *feature_name; GstNvDecoderClassData *cdata; gint index = 0; const GValue *value; GstStructure *s; GTypeInfo type_info = { sizeof (GstNvH264DecClass), nullptr, nullptr, (GClassInitFunc) gst_nv_h264_dec_class_init, nullptr, nullptr, sizeof (GstNvH264Dec), 0, (GInstanceInitFunc) gst_nv_h264_dec_init, }; GST_DEBUG_CATEGORY_INIT (gst_nv_h264_dec_debug, "nvh264dec", 0, "nvh264dec"); cdata = g_new0 (GstNvDecoderClassData, 1); cdata->sink_caps = gst_caps_from_string ("video/x-h264, " "stream-format= (string) { avc, avc3, byte-stream }, " "alignment= (string) au, " "profile = (string) { high, main, constrained-high, constrained-baseline, baseline }, " "framerate = " GST_VIDEO_FPS_RANGE); s = gst_caps_get_structure (sink_caps, 0); value = gst_structure_get_value (s, "width"); cdata->max_width = (guint) gst_value_get_int_range_max (value); gst_caps_set_value (cdata->sink_caps, "width", value); value = gst_structure_get_value (s, "height"); cdata->max_height = (guint) gst_value_get_int_range_max (value); gst_caps_set_value (cdata->sink_caps, "height", value); GST_MINI_OBJECT_FLAG_SET (cdata->sink_caps, GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED); cdata->src_caps = gst_caps_ref (src_caps); cdata->cuda_device_id = device_id; cdata->adapter_luid = adapter_luid; type_name = g_strdup ("GstNvH264Dec"); feature_name = g_strdup ("nvh264dec"); while (g_type_from_name (type_name)) { index++; g_free (type_name); g_free (feature_name); type_name = g_strdup_printf ("GstNvH264Device%dDec", index); feature_name = g_strdup_printf ("nvh264device%ddec", index); } type_info.class_data = cdata; type = g_type_register_static (GST_TYPE_H264_DECODER, type_name, &type_info, (GTypeFlags) 0); /* make lower rank than default device */ if (rank > 0 && index > 0) rank--; if (!gst_element_register (plugin, feature_name, rank, type)) GST_WARNING ("Failed to register plugin '%s'", type_name); g_free (type_name); g_free (feature_name); }