/* * Copyright (C) 2017 Ericsson AB. All rights reserved. * * 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. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "gstnvdec.h" #include "gstcudautils.h" #include "gstcudabufferpool.h" #include GST_DEBUG_CATEGORY_EXTERN (gst_nvdec_debug); #define GST_CAT_DEFAULT gst_nvdec_debug #define DEFAULT_MAX_DISPLAY_DELAY -1 enum { PROP_0, PROP_MAX_DISPLAY_DELAY, }; #ifdef HAVE_NVCODEC_GST_GL #define SUPPORTED_GL_APIS (GST_GL_API_OPENGL | GST_GL_API_OPENGL3 | GST_GL_API_GLES2) static gboolean gst_nvdec_copy_device_to_gl (GstNvDec * nvdec, CUVIDPARSERDISPINFO * dispinfo, GstBuffer * output_buffer); #endif static gboolean gst_nvdec_copy_device_to_memory (GstNvDec * nvdec, CUVIDPARSERDISPINFO * dispinfo, GstBuffer * output_buffer); #ifdef HAVE_NVCODEC_GST_GL typedef struct _GstNvDecRegisterResourceData { GstMemory *mem; GstCudaGraphicsResource *resource; GstNvDec *nvdec; gboolean ret; } GstNvDecRegisterResourceData; static void register_cuda_resource (GstGLContext * context, GstNvDecRegisterResourceData * data) { GstMemory *mem = data->mem; GstCudaGraphicsResource *resource = data->resource; GstNvDec *nvdec = data->nvdec; GstMapInfo map_info = GST_MAP_INFO_INIT; GstGLBuffer *gl_buf_obj; data->ret = FALSE; if (!gst_cuda_context_push (nvdec->cuda_ctx)) { GST_WARNING_OBJECT (nvdec, "failed to push CUDA context"); return; } if (gst_memory_map (mem, &map_info, GST_MAP_READ | GST_MAP_GL)) { GstGLMemoryPBO *gl_mem = (GstGLMemoryPBO *) data->mem; gl_buf_obj = gl_mem->pbo; GST_LOG_OBJECT (nvdec, "register glbuffer %d to CUDA resource", gl_buf_obj->id); /* register resource without read/write only flags, since * downstream CUDA elements (e.g., nvenc) might want to access * this resource later. Instead, use map flags during map/unmap */ if (gst_cuda_graphics_resource_register_gl_buffer (resource, gl_buf_obj->id, CU_GRAPHICS_REGISTER_FLAGS_NONE)) { data->ret = TRUE; } else { GST_WARNING_OBJECT (nvdec, "failed to register memory"); } gst_memory_unmap (mem, &map_info); } else { GST_WARNING_OBJECT (nvdec, "failed to map memory"); } if (!gst_cuda_context_pop (NULL)) GST_WARNING_OBJECT (nvdec, "failed to unlock CUDA context"); } static GstCudaGraphicsResource * ensure_cuda_graphics_resource (GstMemory * mem, GstNvDec * nvdec) { GQuark quark; GstCudaGraphicsResource *cgr_info; GstNvDecRegisterResourceData data; if (!gst_is_gl_memory_pbo (mem)) { GST_WARNING_OBJECT (nvdec, "memory is not GL PBO memory, %s", mem->allocator->mem_type); return NULL; } quark = gst_cuda_quark_from_id (GST_CUDA_QUARK_GRAPHICS_RESOURCE); cgr_info = gst_mini_object_get_qdata (GST_MINI_OBJECT (mem), quark); if (!cgr_info) { cgr_info = gst_cuda_graphics_resource_new (nvdec->cuda_ctx, GST_OBJECT (GST_GL_BASE_MEMORY_CAST (mem)->context), GST_CUDA_GRAPHICS_RESOURCE_GL_BUFFER); data.mem = mem; data.resource = cgr_info; data.nvdec = nvdec; gst_gl_context_thread_add ((GstGLContext *) cgr_info->graphics_context, (GstGLContextThreadFunc) register_cuda_resource, &data); if (!data.ret) { GST_WARNING_OBJECT (nvdec, "could not register resource"); gst_cuda_graphics_resource_free (cgr_info); return NULL; } gst_mini_object_set_qdata (GST_MINI_OBJECT (mem), quark, cgr_info, (GDestroyNotify) gst_cuda_graphics_resource_free); } return cgr_info; } #endif /* HAVE_NVCODEC_GST_GL */ static gboolean gst_nvdec_open (GstVideoDecoder * decoder); static gboolean gst_nvdec_start (GstVideoDecoder * decoder); static gboolean gst_nvdec_stop (GstVideoDecoder * decoder); static gboolean gst_nvdec_close (GstVideoDecoder * decoder); static gboolean gst_nvdec_set_format (GstVideoDecoder * decoder, GstVideoCodecState * state); static GstFlowReturn gst_nvdec_handle_frame (GstVideoDecoder * decoder, GstVideoCodecFrame * frame); static gboolean gst_nvdec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query); static void gst_nvdec_set_context (GstElement * element, GstContext * context); static gboolean gst_nvdec_src_query (GstVideoDecoder * decoder, GstQuery * query); static gboolean gst_nvdec_flush (GstVideoDecoder * decoder); static GstFlowReturn gst_nvdec_drain (GstVideoDecoder * decoder); static GstFlowReturn gst_nvdec_finish (GstVideoDecoder * decoder); static gboolean gst_nvdec_negotiate (GstVideoDecoder * decoder); #ifdef HAVE_NVCODEC_GST_GL static gboolean gst_nvdec_ensure_gl_context (GstNvDec * nvdec); #endif #define gst_nvdec_parent_class parent_class G_DEFINE_ABSTRACT_TYPE (GstNvDec, gst_nvdec, GST_TYPE_VIDEO_DECODER); static void gst_nv_dec_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstNvDec *nvdec = GST_NVDEC (object); switch (prop_id) { case PROP_MAX_DISPLAY_DELAY: nvdec->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_dec_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstNvDec *nvdec = GST_NVDEC (object); switch (prop_id) { case PROP_MAX_DISPLAY_DELAY: g_value_set_int (value, nvdec->max_display_delay); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_nvdec_class_init (GstNvDecClass * klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); GstVideoDecoderClass *video_decoder_class = GST_VIDEO_DECODER_CLASS (klass); GstElementClass *element_class = GST_ELEMENT_CLASS (klass); gobject_class->set_property = gst_nv_dec_set_property; gobject_class->get_property = gst_nv_dec_get_property; video_decoder_class->open = GST_DEBUG_FUNCPTR (gst_nvdec_open); video_decoder_class->start = GST_DEBUG_FUNCPTR (gst_nvdec_start); video_decoder_class->stop = GST_DEBUG_FUNCPTR (gst_nvdec_stop); video_decoder_class->close = GST_DEBUG_FUNCPTR (gst_nvdec_close); video_decoder_class->set_format = GST_DEBUG_FUNCPTR (gst_nvdec_set_format); video_decoder_class->handle_frame = GST_DEBUG_FUNCPTR (gst_nvdec_handle_frame); video_decoder_class->decide_allocation = GST_DEBUG_FUNCPTR (gst_nvdec_decide_allocation); video_decoder_class->src_query = GST_DEBUG_FUNCPTR (gst_nvdec_src_query); video_decoder_class->drain = GST_DEBUG_FUNCPTR (gst_nvdec_drain); video_decoder_class->flush = GST_DEBUG_FUNCPTR (gst_nvdec_flush); video_decoder_class->finish = GST_DEBUG_FUNCPTR (gst_nvdec_finish); video_decoder_class->negotiate = GST_DEBUG_FUNCPTR (gst_nvdec_negotiate); element_class->set_context = GST_DEBUG_FUNCPTR (gst_nvdec_set_context); gst_type_mark_as_plugin_api (GST_TYPE_NVDEC, 0); /** * GstNvDec:max-display-delay: * * Since: 1.20 */ g_object_class_install_property (gobject_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, G_MAXINT, DEFAULT_MAX_DISPLAY_DELAY, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); } static void gst_nvdec_init (GstNvDec * nvdec) { nvdec->max_display_delay = DEFAULT_MAX_DISPLAY_DELAY; gst_video_decoder_set_packetized (GST_VIDEO_DECODER (nvdec), TRUE); gst_video_decoder_set_needs_format (GST_VIDEO_DECODER (nvdec), TRUE); } static cudaVideoSurfaceFormat get_cuda_surface_format_from_gst (GstVideoFormat format) { switch (format) { case GST_VIDEO_FORMAT_NV12: return cudaVideoSurfaceFormat_NV12; case GST_VIDEO_FORMAT_P010_10LE: case GST_VIDEO_FORMAT_P010_10BE: case GST_VIDEO_FORMAT_P016_LE: case GST_VIDEO_FORMAT_P016_BE: return cudaVideoSurfaceFormat_P016; case GST_VIDEO_FORMAT_Y444: return cudaVideoSurfaceFormat_YUV444; case GST_VIDEO_FORMAT_Y444_16LE: case GST_VIDEO_FORMAT_Y444_16BE: return cudaVideoSurfaceFormat_YUV444_16Bit; default: g_assert_not_reached (); break; } return cudaVideoSurfaceFormat_NV12; } static guint calculate_num_decode_surface (cudaVideoCodec codec, guint width, guint height) { switch (codec) { case cudaVideoCodec_VP9: return 12; case cudaVideoCodec_H264: case cudaVideoCodec_H264_SVC: case cudaVideoCodec_H264_MVC: return 20; case cudaVideoCodec_HEVC:{ gint max_dpb_size; gint MaxLumaPS; const gint MaxDpbPicBuf = 6; gint PicSizeInSamplesY; /* A.4.1 */ MaxLumaPS = 35651584; PicSizeInSamplesY = width * height; if (PicSizeInSamplesY <= (MaxLumaPS >> 2)) max_dpb_size = MaxDpbPicBuf * 4; else if (PicSizeInSamplesY <= (MaxLumaPS >> 1)) max_dpb_size = MaxDpbPicBuf * 2; else if (PicSizeInSamplesY <= ((3 * MaxLumaPS) >> 2)) max_dpb_size = (MaxDpbPicBuf * 4) / 3; else max_dpb_size = MaxDpbPicBuf; max_dpb_size = MIN (max_dpb_size, 16); return max_dpb_size + 4; } default: break; } return 8; } static guint gst_nvdec_get_max_display_delay (GstNvDec * nvdec) { return nvdec->max_display_delay >= 0 ? nvdec->max_display_delay : (nvdec->is_live ? 0 : 4); } static gint64 gst_nvdec_get_latency (GstNvDec * nvdec) { gint fps_n, fps_d; if (!nvdec->input_state) return 0; fps_n = GST_VIDEO_INFO_FPS_N (&nvdec->input_state->info); fps_d = GST_VIDEO_INFO_FPS_D (&nvdec->input_state->info); /* We assume 25 fps if the input framerate is invalid */ if (fps_n < 1 || fps_d < 1) { fps_n = 25; fps_d = 1; } return gst_util_uint64_scale_int ((nvdec->num_decode_surface + gst_nvdec_get_max_display_delay (nvdec)) * GST_SECOND, fps_d, fps_n); } /* 0: fail, 1: succeeded, > 1: override dpb size of parser * (set by CUVIDPARSERPARAMS::ulMaxNumDecodeSurfaces while creating parser) */ static gint CUDAAPI parser_sequence_callback (GstNvDec * nvdec, CUVIDEOFORMAT * format) { guint width, height; CUVIDDECODECREATEINFO create_info = { 0, }; GstVideoFormat out_format; GstVideoInfo *in_info = &nvdec->input_state->info; GstVideoInfo *out_info = &nvdec->out_info; GstVideoInfo prev_out_info = *out_info; GstCudaContext *ctx = nvdec->cuda_ctx; GstStructure *in_s = NULL; gboolean updata = FALSE; guint major_api_ver = 0; guint64 curr_latency, old_latency; old_latency = gst_nvdec_get_latency (nvdec); width = format->display_area.right - format->display_area.left; height = format->display_area.bottom - format->display_area.top; switch (format->chroma_format) { case cudaVideoChromaFormat_444: if (format->bit_depth_luma_minus8 == 0) { out_format = GST_VIDEO_FORMAT_Y444; } else if (format->bit_depth_luma_minus8 == 2 || format->bit_depth_luma_minus8 == 4) { #if G_BYTE_ORDER == G_LITTLE_ENDIAN out_format = GST_VIDEO_FORMAT_Y444_16LE; #else out_format = GST_VIDEO_FORMAT_Y444_16BE; #endif } else { GST_ERROR_OBJECT (nvdec, "Unknown 4:4:4 format bitdepth %d", format->bit_depth_luma_minus8 + 8); nvdec->last_ret = GST_FLOW_NOT_NEGOTIATED; return 0; } break; case cudaVideoChromaFormat_420: if (format->bit_depth_luma_minus8 == 0) { out_format = GST_VIDEO_FORMAT_NV12; } else if (format->bit_depth_luma_minus8 == 2) { #if G_BYTE_ORDER == G_LITTLE_ENDIAN out_format = GST_VIDEO_FORMAT_P010_10LE; #else out_format = GST_VIDEO_FORMAT_P010_10BE; #endif } else if (format->bit_depth_luma_minus8 == 4) { #if G_BYTE_ORDER == G_LITTLE_ENDIAN out_format = GST_VIDEO_FORMAT_P016_LE; #else out_format = GST_VIDEO_FORMAT_P016_BE; #endif } else { GST_ERROR_OBJECT (nvdec, "Unknown 4:2:0 format bitdepth %d", format->bit_depth_luma_minus8 + 8); nvdec->last_ret = GST_FLOW_NOT_NEGOTIATED; return 0; } break; default: GST_ERROR_OBJECT (nvdec, "unhandled chroma format %d, bitdepth %d", format->chroma_format, format->bit_depth_luma_minus8 + 8); nvdec->last_ret = GST_FLOW_NOT_NEGOTIATED; return 0; } GST_DEBUG_OBJECT (nvdec, "out format: %s", gst_video_format_to_string (out_format)); GST_DEBUG_OBJECT (nvdec, "width: %u, height: %u", width, height); gst_video_info_set_format (out_info, out_format, width, height); GST_VIDEO_INFO_FPS_N (out_info) = GST_VIDEO_INFO_FPS_N (in_info); GST_VIDEO_INFO_FPS_D (out_info) = GST_VIDEO_INFO_FPS_D (in_info); if (GST_VIDEO_INFO_FPS_N (out_info) < 1 || GST_VIDEO_INFO_FPS_D (out_info) < 1) { GST_VIDEO_INFO_FPS_N (out_info) = format->frame_rate.numerator; GST_VIDEO_INFO_FPS_D (out_info) = MAX (1, format->frame_rate.denominator); } GST_LOG_OBJECT (nvdec, "Reading colorimetry information full-range %d matrix %d transfer %d primaries %d", format->video_signal_description.video_full_range_flag, format->video_signal_description.matrix_coefficients, format->video_signal_description.transfer_characteristics, format->video_signal_description.color_primaries); if (nvdec->input_state->caps) in_s = gst_caps_get_structure (nvdec->input_state->caps, 0); /* Set colorimetry when upstream did not provide it */ if (in_s && !gst_structure_has_field (in_s, "colorimetry")) { GstVideoColorimetry colorimetry = { 0, }; if (format->video_signal_description.video_full_range_flag) colorimetry.range = GST_VIDEO_COLOR_RANGE_0_255; else colorimetry.range = GST_VIDEO_COLOR_RANGE_16_235; colorimetry.primaries = gst_video_color_primaries_from_iso (format->video_signal_description.color_primaries); colorimetry.transfer = gst_video_transfer_function_from_iso (format->video_signal_description.transfer_characteristics); colorimetry.matrix = gst_video_color_matrix_from_iso (format->video_signal_description.matrix_coefficients); /* Use a colorimetry having at least one valid colorimetry entry, * because we don't know whether the returned * colorimetry (by nvdec) was actually parsed information or not. * Otherwise let GstVideoInfo handle it with default colorimetry */ if (colorimetry.primaries != GST_VIDEO_COLOR_PRIMARIES_UNKNOWN || colorimetry.transfer != GST_VIDEO_TRANSFER_UNKNOWN || colorimetry.matrix != GST_VIDEO_COLOR_MATRIX_UNKNOWN) { GST_DEBUG_OBJECT (nvdec, "Found valid colorimetry, update output colorimetry"); out_info->colorimetry = colorimetry; } } else { out_info->colorimetry = in_info->colorimetry; } if (format->progressive_sequence) { out_info->interlace_mode = GST_VIDEO_INTERLACE_MODE_PROGRESSIVE; /* nvdec doesn't seem to deal with interlacing with hevc so rely * on upstream's value */ if (format->codec == cudaVideoCodec_HEVC) { out_info->interlace_mode = in_info->interlace_mode; } } else { out_info->interlace_mode = GST_VIDEO_INTERLACE_MODE_MIXED; } if (gst_cuvid_get_api_version (&major_api_ver, NULL) && major_api_ver >= 9) { /* min_num_decode_surfaces was introduced in nvcodec sdk 9.0 header */ nvdec->num_decode_surface = format->min_num_decode_surfaces; GST_DEBUG_OBJECT (nvdec, "Num decode surface: %d", nvdec->num_decode_surface); } else { nvdec->num_decode_surface = calculate_num_decode_surface (format->codec, width, height); GST_DEBUG_OBJECT (nvdec, "Calculated num decode surface: %d", nvdec->num_decode_surface); } /* Update the latency if it has changed */ curr_latency = gst_nvdec_get_latency (nvdec); if (old_latency != curr_latency) gst_video_decoder_set_latency (GST_VIDEO_DECODER (nvdec), curr_latency, curr_latency); if (!nvdec->decoder || !gst_video_info_is_equal (out_info, &prev_out_info)) { updata = TRUE; if (!gst_cuda_context_push (ctx)) { GST_ERROR_OBJECT (nvdec, "failed to lock CUDA context"); goto error; } if (nvdec->decoder) { GST_DEBUG_OBJECT (nvdec, "destroying decoder"); if (!gst_cuda_result (CuvidDestroyDecoder (nvdec->decoder))) { GST_ERROR_OBJECT (nvdec, "failed to destroy decoder"); goto error; } else nvdec->decoder = NULL; } GST_DEBUG_OBJECT (nvdec, "creating decoder"); create_info.ulWidth = width; create_info.ulHeight = height; create_info.ulNumDecodeSurfaces = nvdec->num_decode_surface; create_info.CodecType = format->codec; create_info.ChromaFormat = format->chroma_format; create_info.ulCreationFlags = cudaVideoCreate_Default; create_info.display_area.left = format->display_area.left; create_info.display_area.top = format->display_area.top; create_info.display_area.right = format->display_area.right; create_info.display_area.bottom = format->display_area.bottom; create_info.OutputFormat = get_cuda_surface_format_from_gst (out_format); create_info.bitDepthMinus8 = format->bit_depth_luma_minus8; create_info.DeinterlaceMode = cudaVideoDeinterlaceMode_Weave; create_info.ulTargetWidth = width; create_info.ulTargetHeight = height; create_info.ulNumOutputSurfaces = 1; create_info.target_rect.left = 0; create_info.target_rect.top = 0; create_info.target_rect.right = width; create_info.target_rect.bottom = height; if (nvdec->decoder || !gst_cuda_result (CuvidCreateDecoder (&nvdec->decoder, &create_info))) { GST_ERROR_OBJECT (nvdec, "failed to create decoder"); goto error; } if (!gst_cuda_context_pop (NULL)) { GST_ERROR_OBJECT (nvdec, "failed to unlock CUDA context"); goto error; } } if (!gst_pad_has_current_caps (GST_VIDEO_DECODER_SRC_PAD (nvdec)) || updata) { if (!gst_video_decoder_negotiate (GST_VIDEO_DECODER (nvdec))) { nvdec->last_ret = GST_FLOW_NOT_NEGOTIATED; return 0; } } return nvdec->num_decode_surface; error: nvdec->last_ret = GST_FLOW_ERROR; return 0; } static gboolean gst_nvdec_negotiate (GstVideoDecoder * decoder) { GstNvDec *nvdec = GST_NVDEC (decoder); GstVideoCodecState *state; GstVideoInfo *vinfo; GstVideoInfo *out_info = &nvdec->out_info; gboolean ret; GST_DEBUG_OBJECT (nvdec, "negotiate"); state = gst_video_decoder_set_output_state (GST_VIDEO_DECODER (nvdec), GST_VIDEO_INFO_FORMAT (out_info), GST_VIDEO_INFO_WIDTH (out_info), GST_VIDEO_INFO_HEIGHT (out_info), nvdec->input_state); vinfo = &state->info; /* update output info with CUvidparser provided one */ vinfo->interlace_mode = out_info->interlace_mode; vinfo->fps_n = out_info->fps_n; vinfo->fps_d = out_info->fps_d; state->caps = gst_video_info_to_caps (&state->info); nvdec->mem_type = GST_NVDEC_MEM_TYPE_SYSTEM; { GstCaps *caps; caps = gst_pad_get_allowed_caps (GST_VIDEO_DECODER_SRC_PAD (nvdec)); GST_DEBUG_OBJECT (nvdec, "Allowed caps %" GST_PTR_FORMAT, caps); if (!caps || gst_caps_is_any (caps)) { GST_DEBUG_OBJECT (nvdec, "cannot determine output format, use system memory"); } else { GstCapsFeatures *features; guint size = gst_caps_get_size (caps); guint i; gboolean have_cuda = FALSE; gboolean have_gl = FALSE; for (i = 0; i < size; i++) { features = gst_caps_get_features (caps, i); if (features && gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_CUDA_MEMORY)) { GST_DEBUG_OBJECT (nvdec, "found CUDA memory feature"); have_cuda = TRUE; break; } #ifdef HAVE_NVCODEC_GST_GL if (nvdec->gl_display && features && gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_GL_MEMORY)) { GST_DEBUG_OBJECT (nvdec, "found GL memory feature"); have_gl = TRUE; } #endif } if (have_cuda) nvdec->mem_type = GST_NVDEC_MEM_TYPE_CUDA; else if (have_gl) nvdec->mem_type = GST_NVDEC_MEM_TYPE_GL; } gst_clear_caps (&caps); } #ifdef HAVE_NVCODEC_GST_GL if (nvdec->mem_type == GST_NVDEC_MEM_TYPE_GL && !gst_nvdec_ensure_gl_context (nvdec)) { GST_WARNING_OBJECT (nvdec, "OpenGL context is not CUDA-compatible, fallback to system memory"); nvdec->mem_type = GST_NVDEC_MEM_TYPE_SYSTEM; } #endif switch (nvdec->mem_type) { case GST_NVDEC_MEM_TYPE_CUDA: GST_DEBUG_OBJECT (nvdec, "use cuda memory"); gst_caps_set_features (state->caps, 0, gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_CUDA_MEMORY, NULL)); break; #ifdef HAVE_NVCODEC_GST_GL case GST_NVDEC_MEM_TYPE_GL: GST_DEBUG_OBJECT (nvdec, "use gl memory"); gst_caps_set_features (state->caps, 0, gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_GL_MEMORY, NULL)); gst_caps_set_simple (state->caps, "texture-target", G_TYPE_STRING, "2D", NULL); break; #endif default: GST_DEBUG_OBJECT (nvdec, "use system memory"); break; } if (nvdec->output_state) gst_video_codec_state_unref (nvdec->output_state); nvdec->output_state = state; ret = GST_VIDEO_DECODER_CLASS (parent_class)->negotiate (decoder); if (!ret) { GST_ERROR_OBJECT (nvdec, "failed to negotiate with downstream"); nvdec->last_ret = GST_FLOW_NOT_NEGOTIATED; } return ret; } static gboolean CUDAAPI parser_decode_callback (GstNvDec * nvdec, CUVIDPICPARAMS * params) { GList *iter, *pending_frames; GstCudaContext *ctx = nvdec->cuda_ctx; GST_LOG_OBJECT (nvdec, "picture index: %u", params->CurrPicIdx); if (!gst_cuda_context_push (ctx)) { GST_ERROR_OBJECT (nvdec, "failed to lock CUDA context"); goto error; } if (!gst_cuda_result (CuvidDecodePicture (nvdec->decoder, params))) { GST_ERROR_OBJECT (nvdec, "failed to decode picture"); goto error; } if (!gst_cuda_context_pop (NULL)) { GST_ERROR_OBJECT (nvdec, "failed to unlock CUDA context"); goto error; } pending_frames = gst_video_decoder_get_frames (GST_VIDEO_DECODER (nvdec)); /* NOTE: this decode callback could be invoked multiple times for * one cuvidParseVideoData() call. Most likely it can be related to "decode only" * frame of VPX codec but no document available. * In that case, the last decoded frame seems to be displayed */ for (iter = pending_frames; iter; iter = g_list_next (iter)) { guint id; GstVideoCodecFrame *frame = (GstVideoCodecFrame *) iter->data; gboolean set_data = FALSE; id = GPOINTER_TO_UINT (gst_video_codec_frame_get_user_data (frame)); if (G_UNLIKELY (nvdec->state == GST_NVDEC_STATE_DECODE)) { if (id) { GST_LOG_OBJECT (nvdec, "reset the last user data"); set_data = TRUE; } } else if (!id) { set_data = TRUE; } if (set_data) { gst_video_codec_frame_set_user_data (frame, GUINT_TO_POINTER (params->CurrPicIdx + 1), NULL); break; } } nvdec->state = GST_NVDEC_STATE_DECODE; g_list_free_full (pending_frames, (GDestroyNotify) gst_video_codec_frame_unref); return TRUE; error: nvdec->last_ret = GST_FLOW_ERROR; return FALSE; } static gboolean CUDAAPI parser_display_callback (GstNvDec * nvdec, CUVIDPARSERDISPINFO * dispinfo) { GList *iter, *pending_frames; GstVideoCodecFrame *frame = NULL; GstBuffer *output_buffer = NULL; GstFlowReturn ret = GST_FLOW_OK; gboolean copy_ret = FALSE; GST_LOG_OBJECT (nvdec, "picture index: %u", dispinfo->picture_index); pending_frames = gst_video_decoder_get_frames (GST_VIDEO_DECODER (nvdec)); for (iter = pending_frames; iter; iter = g_list_next (iter)) { guint id; GstVideoCodecFrame *tmp = (GstVideoCodecFrame *) iter->data; id = GPOINTER_TO_UINT (gst_video_codec_frame_get_user_data (tmp)); if (id == dispinfo->picture_index + 1) { frame = gst_video_codec_frame_ref (tmp); break; } } g_list_free_full (pending_frames, (GDestroyNotify) gst_video_codec_frame_unref); if (G_UNLIKELY (frame == NULL)) { GST_WARNING_OBJECT (nvdec, "no frame for picture index %u", dispinfo->picture_index); output_buffer = gst_video_decoder_allocate_output_buffer (GST_VIDEO_DECODER (nvdec)); if (!output_buffer) { GST_ERROR_OBJECT (nvdec, "Couldn't allocate output buffer"); nvdec->last_ret = GST_FLOW_ERROR; return FALSE; } GST_BUFFER_PTS (output_buffer) = dispinfo->timestamp; GST_BUFFER_DTS (output_buffer) = GST_CLOCK_TIME_NONE; /* assume buffer duration from framerate */ GST_BUFFER_DURATION (output_buffer) = gst_util_uint64_scale (GST_SECOND, GST_VIDEO_INFO_FPS_D (&nvdec->out_info), GST_VIDEO_INFO_FPS_N (&nvdec->out_info)); } else { ret = gst_video_decoder_allocate_output_frame (GST_VIDEO_DECODER (nvdec), frame); if (ret != GST_FLOW_OK) { GST_WARNING_OBJECT (nvdec, "failed to allocate output frame"); nvdec->last_ret = ret; return FALSE; } output_buffer = frame->output_buffer; if (dispinfo->timestamp != frame->pts) { GST_INFO_OBJECT (nvdec, "timestamp mismatch, diff: %" GST_STIME_FORMAT, GST_STIME_ARGS (GST_CLOCK_DIFF (dispinfo->timestamp, frame->pts))); } } #ifdef HAVE_NVCODEC_GST_GL if (nvdec->mem_type == GST_NVDEC_MEM_TYPE_GL) { copy_ret = gst_nvdec_copy_device_to_gl (nvdec, dispinfo, output_buffer); /* FIXME: This is the case where OpenGL context of downstream glbufferpool * belongs to non-nvidia (or different device). * There should be enhancement to ensure nvdec has compatible OpenGL context */ if (!copy_ret) { GST_WARNING_OBJECT (nvdec, "Couldn't copy frame to GL memory, fallback to system memory"); nvdec->mem_type = GST_NVDEC_MEM_TYPE_SYSTEM; } } if (!copy_ret) #endif { copy_ret = gst_nvdec_copy_device_to_memory (nvdec, dispinfo, output_buffer); } if (!copy_ret) { GST_ERROR_OBJECT (nvdec, "failed to copy decoded picture to output buffer"); nvdec->last_ret = GST_FLOW_ERROR; if (frame) gst_video_decoder_drop_frame (GST_VIDEO_DECODER (nvdec), frame); else gst_buffer_unref (output_buffer); return FALSE; } if (!dispinfo->progressive_frame) { GST_BUFFER_FLAG_SET (output_buffer, GST_VIDEO_BUFFER_FLAG_INTERLACED); if (dispinfo->top_field_first) { GST_BUFFER_FLAG_SET (output_buffer, GST_VIDEO_BUFFER_FLAG_TFF); } if (dispinfo->repeat_first_field == -1) { GST_BUFFER_FLAG_SET (output_buffer, GST_VIDEO_BUFFER_FLAG_ONEFIELD); } else { GST_BUFFER_FLAG_SET (output_buffer, GST_VIDEO_BUFFER_FLAG_RFF); } } if (frame) { ret = gst_video_decoder_finish_frame (GST_VIDEO_DECODER (nvdec), frame); } else { ret = gst_pad_push (GST_VIDEO_DECODER_SRC_PAD (nvdec), output_buffer); } if (ret != GST_FLOW_OK) { GST_DEBUG_OBJECT (nvdec, "failed to finish frame %s", gst_flow_get_name (ret)); nvdec->last_ret = ret; return FALSE; } return TRUE; } static gboolean gst_nvdec_open (GstVideoDecoder * decoder) { GstNvDec *nvdec = GST_NVDEC (decoder); GstNvDecClass *klass = GST_NVDEC_GET_CLASS (nvdec); CUresult cuda_ret; GST_DEBUG_OBJECT (nvdec, "creating CUDA context"); if (!gst_cuda_ensure_element_context (GST_ELEMENT_CAST (decoder), klass->cuda_device_id, &nvdec->cuda_ctx)) { GST_ERROR_OBJECT (nvdec, "failed to create CUDA context"); return FALSE; } if (gst_cuda_context_push (nvdec->cuda_ctx)) { cuda_ret = CuStreamCreate (&nvdec->cuda_stream, CU_STREAM_DEFAULT); if (!gst_cuda_result (cuda_ret)) { GST_WARNING_OBJECT (nvdec, "Could not create CUDA stream, will use default stream"); nvdec->cuda_stream = NULL; } gst_cuda_context_pop (NULL); } #if HAVE_NVCODEC_GST_GL gst_gl_ensure_element_data (GST_ELEMENT (nvdec), &nvdec->gl_display, &nvdec->other_gl_context); if (nvdec->gl_display) gst_gl_display_filter_gl_api (GST_GL_DISPLAY (nvdec->gl_display), SUPPORTED_GL_APIS); #endif return TRUE; } static gboolean gst_nvdec_start (GstVideoDecoder * decoder) { GstNvDec *nvdec = GST_NVDEC (decoder); GstNvDecClass *klass = GST_NVDEC_GET_CLASS (nvdec); nvdec->state = GST_NVDEC_STATE_INIT; nvdec->last_ret = GST_FLOW_OK; gst_video_info_init (&nvdec->out_info); if (klass->codec_type == cudaVideoCodec_H264) nvdec->h264_parser = gst_h264_nal_parser_new (); else if (klass->codec_type == cudaVideoCodec_HEVC) nvdec->h265_parser = gst_h265_parser_new (); return TRUE; } static gboolean maybe_destroy_decoder_and_parser (GstNvDec * nvdec) { gboolean ret = TRUE; if (!gst_cuda_context_push (nvdec->cuda_ctx)) { GST_ERROR_OBJECT (nvdec, "failed to lock CUDA context"); return FALSE; } if (nvdec->decoder) { GST_DEBUG_OBJECT (nvdec, "destroying decoder"); ret = gst_cuda_result (CuvidDestroyDecoder (nvdec->decoder)); nvdec->decoder = NULL; if (!ret) GST_ERROR_OBJECT (nvdec, "failed to destroy decoder"); } if (nvdec->parser) { GST_DEBUG_OBJECT (nvdec, "destroying parser"); if (!gst_cuda_result (CuvidDestroyVideoParser (nvdec->parser))) { GST_ERROR_OBJECT (nvdec, "failed to destroy parser"); ret = FALSE; } nvdec->parser = NULL; } if (!gst_cuda_context_pop (NULL)) { GST_WARNING_OBJECT (nvdec, "failed to pop CUDA context"); } return ret; } static void gst_nvdec_clear_codec_data (GstNvDec * self) { GstNvDecClass *klass = GST_NVDEC_GET_CLASS (self); guint i; if (klass->codec_type == cudaVideoCodec_HEVC) { for (i = 0; i < G_N_ELEMENTS (self->vps_nals); i++) { gst_clear_buffer (&self->vps_nals[i]); } } if (klass->codec_type == cudaVideoCodec_HEVC || klass->codec_type == cudaVideoCodec_H264) { for (i = 0; i < G_N_ELEMENTS (self->sps_nals); i++) { gst_clear_buffer (&self->sps_nals[i]); } for (i = 0; i < G_N_ELEMENTS (self->pps_nals); i++) { gst_clear_buffer (&self->pps_nals[i]); } } gst_clear_buffer (&self->codec_data); self->need_codec_data = TRUE; } static gboolean gst_nvdec_stop (GstVideoDecoder * decoder) { GstNvDec *nvdec = GST_NVDEC (decoder); GST_DEBUG_OBJECT (nvdec, "stop"); if (!maybe_destroy_decoder_and_parser (nvdec)) return FALSE; #ifdef HAVE_NVCODEC_GST_GL gst_clear_object (&nvdec->gl_context); gst_clear_object (&nvdec->other_gl_context); gst_clear_object (&nvdec->gl_display); #endif g_clear_pointer (&nvdec->input_state, gst_video_codec_state_unref); g_clear_pointer (&nvdec->output_state, gst_video_codec_state_unref); g_clear_pointer (&nvdec->h264_parser, gst_h264_nal_parser_free); g_clear_pointer (&nvdec->h265_parser, gst_h265_parser_free); gst_nvdec_clear_codec_data (nvdec); return TRUE; } static gboolean gst_nvdec_close (GstVideoDecoder * decoder) { GstNvDec *nvdec = GST_NVDEC (decoder); if (nvdec->cuda_ctx && nvdec->cuda_stream) { if (gst_cuda_context_push (nvdec->cuda_ctx)) { gst_cuda_result (CuStreamDestroy (nvdec->cuda_stream)); gst_cuda_context_pop (NULL); } } gst_clear_object (&nvdec->cuda_ctx); nvdec->cuda_stream = NULL; return TRUE; } static gboolean gst_nvdec_set_format (GstVideoDecoder * decoder, GstVideoCodecState * state) { GstNvDec *nvdec = GST_NVDEC (decoder); GstNvDecClass *klass = GST_NVDEC_GET_CLASS (decoder); CUVIDPARSERPARAMS parser_params = { 0, }; GstQuery *query; gboolean ret = TRUE; GST_DEBUG_OBJECT (nvdec, "set format"); if (nvdec->input_state) gst_video_codec_state_unref (nvdec->input_state); nvdec->input_state = gst_video_codec_state_ref (state); if (!maybe_destroy_decoder_and_parser (nvdec)) return FALSE; /* Check if pipeline is live */ nvdec->is_live = FALSE; query = gst_query_new_latency (); if (gst_pad_peer_query (GST_VIDEO_DECODER_SINK_PAD (decoder), query)) gst_query_parse_latency (query, &nvdec->is_live, NULL, NULL); gst_query_unref (query); parser_params.CodecType = klass->codec_type; /* ulMaxNumDecodeSurfaces will be updated by the return value of * SequenceCallback */ parser_params.ulMaxNumDecodeSurfaces = 1; parser_params.ulErrorThreshold = 100; parser_params.ulMaxDisplayDelay = gst_nvdec_get_max_display_delay (nvdec); parser_params.ulClockRate = GST_SECOND; parser_params.pUserData = nvdec; parser_params.pfnSequenceCallback = (PFNVIDSEQUENCECALLBACK) parser_sequence_callback; parser_params.pfnDecodePicture = (PFNVIDDECODECALLBACK) parser_decode_callback; parser_params.pfnDisplayPicture = (PFNVIDDISPLAYCALLBACK) parser_display_callback; gst_cuda_context_push (nvdec->cuda_ctx); GST_DEBUG_OBJECT (nvdec, "creating parser"); if (!gst_cuda_result (CuvidCreateVideoParser (&nvdec->parser, &parser_params))) { GST_ERROR_OBJECT (nvdec, "failed to create parser"); ret = FALSE; } gst_cuda_context_pop (NULL); /* store codec data */ gst_nvdec_clear_codec_data (nvdec); if (ret && nvdec->input_state->caps) { GstStructure *str; str = gst_caps_get_structure (nvdec->input_state->caps, 0); if (klass->codec_type == cudaVideoCodec_MPEG4) { const GValue *codec_data_value; codec_data_value = gst_structure_get_value (str, "codec_data"); if (codec_data_value && GST_VALUE_HOLDS_BUFFER (codec_data_value)) { GstBuffer *codec_data = gst_value_get_buffer (codec_data_value); gst_buffer_replace (&nvdec->codec_data, codec_data); } } /* For all CODEC we get complete picture ... */ nvdec->recv_complete_picture = TRUE; /* Except for JPEG, for which it depends on the caps */ if (klass->codec_type == cudaVideoCodec_JPEG) { gboolean parsed; if (gst_structure_get_boolean (str, "parsed", &parsed)) nvdec->recv_complete_picture = parsed; else nvdec->recv_complete_picture = FALSE; } } return ret; } #ifdef HAVE_NVCODEC_GST_GL typedef struct { GstNvDec *nvdec; CUVIDPARSERDISPINFO *dispinfo; gboolean ret; GstBuffer *output_buffer; } GstNvDecCopyToGLData; static void copy_video_frame_to_gl_textures (GstGLContext * context, GstNvDecCopyToGLData * data) { GstNvDec *nvdec = data->nvdec; CUVIDPARSERDISPINFO *dispinfo = data->dispinfo; GstCudaGraphicsResource **resources; guint num_resources; CUVIDPROCPARAMS proc_params = { 0, }; guintptr dptr; guint pitch, i; CUDA_MEMCPY2D mcpy2d = { 0, }; GstVideoInfo *info = &nvdec->output_state->info; GST_LOG_OBJECT (nvdec, "picture index: %u", dispinfo->picture_index); proc_params.progressive_frame = dispinfo->progressive_frame; proc_params.top_field_first = dispinfo->top_field_first; proc_params.unpaired_field = dispinfo->repeat_first_field == -1; data->ret = TRUE; num_resources = gst_buffer_n_memory (data->output_buffer); resources = g_newa (GstCudaGraphicsResource *, num_resources); for (i = 0; i < num_resources; i++) { GstMemory *mem; mem = gst_buffer_peek_memory (data->output_buffer, i); resources[i] = ensure_cuda_graphics_resource (mem, nvdec); if (!resources[i]) { GST_WARNING_OBJECT (nvdec, "could not register %dth memory", i); data->ret = FALSE; return; } /* Need PBO -> texture */ GST_MINI_OBJECT_FLAG_SET (mem, GST_GL_BASE_MEMORY_TRANSFER_NEED_UPLOAD); } if (!gst_cuda_context_push (nvdec->cuda_ctx)) { GST_WARNING_OBJECT (nvdec, "failed to lock CUDA context"); data->ret = FALSE; return; } if (!gst_cuda_result (CuvidMapVideoFrame (nvdec->decoder, dispinfo->picture_index, &dptr, &pitch, &proc_params))) { GST_WARNING_OBJECT (nvdec, "failed to map CUDA video frame"); data->ret = FALSE; goto unlock_cuda_context; } mcpy2d.srcMemoryType = CU_MEMORYTYPE_DEVICE; mcpy2d.srcPitch = pitch; mcpy2d.dstMemoryType = CU_MEMORYTYPE_DEVICE; for (i = 0; i < num_resources; i++) { CUdeviceptr cuda_ptr; gsize size; CUgraphicsResource cuda_resource = gst_cuda_graphics_resource_map (resources[i], nvdec->cuda_stream, CU_GRAPHICS_MAP_RESOURCE_FLAGS_WRITE_DISCARD); if (!cuda_resource) { GST_WARNING_OBJECT (nvdec, "failed to map CUDA resources"); data->ret = FALSE; goto unmap_video_frame; } if (!gst_cuda_result (CuGraphicsResourceGetMappedPointer (&cuda_ptr, &size, cuda_resource))) { GST_WARNING_OBJECT (nvdec, "failed to map CUDA resource"); data->ret = FALSE; break; } mcpy2d.dstPitch = GST_VIDEO_INFO_PLANE_STRIDE (info, i); mcpy2d.WidthInBytes = GST_VIDEO_INFO_COMP_WIDTH (info, i) * GST_VIDEO_INFO_COMP_PSTRIDE (info, i); mcpy2d.srcDevice = dptr + (i * pitch * GST_VIDEO_INFO_HEIGHT (info)); mcpy2d.dstDevice = cuda_ptr; mcpy2d.Height = GST_VIDEO_INFO_COMP_HEIGHT (info, i); if (!gst_cuda_result (CuMemcpy2DAsync (&mcpy2d, nvdec->cuda_stream))) { GST_WARNING_OBJECT (nvdec, "memcpy to mapped array failed"); data->ret = FALSE; } } gst_cuda_result (CuStreamSynchronize (nvdec->cuda_stream)); unmap_video_frame: for (i = 0; i < num_resources; i++) { gst_cuda_graphics_resource_unmap (resources[i], nvdec->cuda_stream); } if (!gst_cuda_result (CuvidUnmapVideoFrame (nvdec->decoder, dptr))) GST_WARNING_OBJECT (nvdec, "failed to unmap CUDA video frame"); unlock_cuda_context: if (!gst_cuda_context_pop (NULL)) GST_WARNING_OBJECT (nvdec, "failed to unlock CUDA context"); } static gboolean gst_nvdec_copy_device_to_gl (GstNvDec * nvdec, CUVIDPARSERDISPINFO * dispinfo, GstBuffer * output_buffer) { GstNvDecCopyToGLData data = { 0, }; data.nvdec = nvdec; data.dispinfo = dispinfo; data.output_buffer = output_buffer; gst_gl_context_thread_add (nvdec->gl_context, (GstGLContextThreadFunc) copy_video_frame_to_gl_textures, &data); return data.ret; } #endif static gboolean gst_nvdec_copy_device_to_memory (GstNvDec * nvdec, CUVIDPARSERDISPINFO * dispinfo, GstBuffer * output_buffer) { CUVIDPROCPARAMS params = { 0, }; CUDA_MEMCPY2D copy_params = { 0, }; guintptr dptr; guint pitch; GstVideoFrame video_frame; GstVideoInfo *info = &nvdec->output_state->info; gint i; GstMemory *mem; GstCudaMemory *cuda_mem = NULL; if (!gst_cuda_context_push (nvdec->cuda_ctx)) { GST_WARNING_OBJECT (nvdec, "failed to lock CUDA context"); return FALSE; } if (nvdec->mem_type == GST_NVDEC_MEM_TYPE_CUDA && (mem = gst_buffer_peek_memory (output_buffer, 0)) && gst_is_cuda_memory (mem)) { GstCudaMemory *cmem = GST_CUDA_MEMORY_CAST (mem); if (cmem->context == nvdec->cuda_ctx || gst_cuda_context_get_handle (cmem->context) == gst_cuda_context_get_handle (nvdec->cuda_ctx) || (gst_cuda_context_can_access_peer (cmem->context, nvdec->cuda_ctx) && gst_cuda_context_can_access_peer (nvdec->cuda_ctx, cmem->context))) { cuda_mem = cmem; } } if (!cuda_mem) { if (!gst_video_frame_map (&video_frame, info, output_buffer, GST_MAP_WRITE)) { GST_ERROR_OBJECT (nvdec, "frame map failure"); gst_cuda_context_pop (NULL); return FALSE; } } params.progressive_frame = dispinfo->progressive_frame; params.second_field = dispinfo->repeat_first_field + 1; params.top_field_first = dispinfo->top_field_first; params.unpaired_field = dispinfo->repeat_first_field < 0; if (!gst_cuda_result (CuvidMapVideoFrame (nvdec->decoder, dispinfo->picture_index, &dptr, &pitch, ¶ms))) { GST_ERROR_OBJECT (nvdec, "failed to map video frame"); gst_cuda_context_pop (NULL); return FALSE; } copy_params.srcMemoryType = CU_MEMORYTYPE_DEVICE; copy_params.srcPitch = pitch; copy_params.dstMemoryType = cuda_mem ? CU_MEMORYTYPE_DEVICE : CU_MEMORYTYPE_HOST; for (i = 0; i < GST_VIDEO_INFO_N_PLANES (info); i++) { copy_params.srcDevice = dptr + (i * pitch * GST_VIDEO_INFO_HEIGHT (info)); if (cuda_mem) { copy_params.dstDevice = cuda_mem->data + cuda_mem->offset[i]; copy_params.dstPitch = cuda_mem->stride; } else { copy_params.dstHost = GST_VIDEO_FRAME_PLANE_DATA (&video_frame, i); copy_params.dstPitch = GST_VIDEO_FRAME_PLANE_STRIDE (&video_frame, i); } copy_params.WidthInBytes = GST_VIDEO_INFO_COMP_WIDTH (info, i) * GST_VIDEO_INFO_COMP_PSTRIDE (info, i); copy_params.Height = GST_VIDEO_INFO_COMP_HEIGHT (info, i); if (!gst_cuda_result (CuMemcpy2DAsync (©_params, nvdec->cuda_stream))) { GST_ERROR_OBJECT (nvdec, "failed to copy %dth plane", i); CuvidUnmapVideoFrame (nvdec->decoder, dptr); if (!cuda_mem) gst_video_frame_unmap (&video_frame); gst_cuda_context_pop (NULL); return FALSE; } } gst_cuda_result (CuStreamSynchronize (nvdec->cuda_stream)); if (!cuda_mem) gst_video_frame_unmap (&video_frame); if (!gst_cuda_result (CuvidUnmapVideoFrame (nvdec->decoder, dptr))) GST_WARNING_OBJECT (nvdec, "failed to unmap video frame"); if (!gst_cuda_context_pop (NULL)) GST_WARNING_OBJECT (nvdec, "failed to unlock CUDA context"); return TRUE; } static void gst_nvdec_store_h264_nal (GstNvDec * self, guint id, GstH264NalUnitType nal_type, GstH264NalUnit * nalu) { GstBuffer *buf, **store; guint size = nalu->size, store_size; static const guint8 start_code[] = { 0, 0, 1 }; if (nal_type == GST_H264_NAL_SPS || nal_type == GST_H264_NAL_SUBSET_SPS) { store_size = GST_H264_MAX_SPS_COUNT; store = self->sps_nals; GST_DEBUG_OBJECT (self, "storing sps %u", id); } else if (nal_type == GST_H264_NAL_PPS) { store_size = GST_H264_MAX_PPS_COUNT; store = self->pps_nals; GST_DEBUG_OBJECT (self, "storing pps %u", id); } else { return; } if (id >= store_size) { GST_DEBUG_OBJECT (self, "unable to store nal, id out-of-range %d", id); return; } buf = gst_buffer_new_allocate (NULL, size + sizeof (start_code), NULL); gst_buffer_fill (buf, 0, start_code, sizeof (start_code)); gst_buffer_fill (buf, sizeof (start_code), nalu->data + nalu->offset, size); if (store[id]) gst_buffer_unref (store[id]); store[id] = buf; } static GstBuffer * gst_nvdec_handle_h264_buffer (GstNvDec * self, GstBuffer * buffer) { GstH264NalParser *parser = self->h264_parser; GstH264NalUnit nalu; GstH264ParserResult pres; GstMapInfo map; gboolean have_sps = FALSE; gboolean have_pps = FALSE; guint i; GstBuffer *new_buf; if (!gst_buffer_map (buffer, &map, GST_MAP_READ)) { GST_WARNING_OBJECT (self, "Failed to map input buffer"); return gst_buffer_ref (buffer); } memset (&nalu, 0, sizeof (GstH264NalUnit)); do { pres = gst_h264_parser_identify_nalu (parser, map.data, nalu.offset + nalu.size, map.size, &nalu); if (pres == GST_H264_PARSER_NO_NAL_END) pres = GST_H264_PARSER_OK; switch (nalu.type) { case GST_H264_NAL_SPS: case GST_H264_NAL_SUBSET_SPS:{ GstH264SPS sps; if (nalu.type == GST_H264_NAL_SPS) { pres = gst_h264_parser_parse_sps (parser, &nalu, &sps); } else { pres = gst_h264_parser_parse_subset_sps (parser, &nalu, &sps); } if (pres != GST_H264_PARSER_OK) break; have_sps = TRUE; gst_nvdec_store_h264_nal (self, sps.id, nalu.type, &nalu); gst_h264_sps_clear (&sps); break; } case GST_H264_NAL_PPS:{ GstH264PPS pps; pres = gst_h264_parser_parse_pps (parser, &nalu, &pps); if (pres != GST_H264_PARSER_OK) break; have_pps = TRUE; gst_nvdec_store_h264_nal (self, pps.id, nalu.type, &nalu); gst_h264_pps_clear (&pps); break; } default: break; } } while (pres == GST_H264_PARSER_OK); gst_buffer_unmap (buffer, &map); if (!self->need_codec_data || (have_sps && have_pps)) { self->need_codec_data = FALSE; return gst_buffer_ref (buffer); } new_buf = gst_buffer_new (); if (!have_sps) { for (i = 0; i < GST_H264_MAX_SPS_COUNT; i++) { if (!self->sps_nals[i]) continue; have_sps = TRUE; new_buf = gst_buffer_append (new_buf, gst_buffer_ref (self->sps_nals[i])); } } if (!have_pps) { for (i = 0; i < GST_H264_MAX_PPS_COUNT; i++) { if (!self->pps_nals[i]) continue; have_pps = TRUE; new_buf = gst_buffer_append (new_buf, gst_buffer_ref (self->pps_nals[i])); } } new_buf = gst_buffer_append (new_buf, gst_buffer_ref (buffer)); if (have_sps && have_pps) self->need_codec_data = FALSE; return new_buf; } static void gst_nvdec_store_h265_nal (GstNvDec * self, guint id, GstH265NalUnitType nal_type, GstH265NalUnit * nalu) { GstBuffer *buf, **store; guint size = nalu->size, store_size; static const guint8 start_code[] = { 0, 0, 1 }; if (nal_type == GST_H265_NAL_VPS) { store_size = GST_H265_MAX_VPS_COUNT; store = self->vps_nals; GST_DEBUG_OBJECT (self, "storing vps %u", id); } else if (nal_type == GST_H265_NAL_SPS) { store_size = GST_H265_MAX_SPS_COUNT; store = self->sps_nals; GST_DEBUG_OBJECT (self, "storing sps %u", id); } else if (nal_type == GST_H265_NAL_PPS) { store_size = GST_H265_MAX_PPS_COUNT; store = self->pps_nals; GST_DEBUG_OBJECT (self, "storing pps %u", id); } else { return; } if (id >= store_size) { GST_DEBUG_OBJECT (self, "unable to store nal, id out-of-range %d", id); return; } buf = gst_buffer_new_allocate (NULL, size + sizeof (start_code), NULL); gst_buffer_fill (buf, 0, start_code, sizeof (start_code)); gst_buffer_fill (buf, sizeof (start_code), nalu->data + nalu->offset, size); if (store[id]) gst_buffer_unref (store[id]); store[id] = buf; } static GstBuffer * gst_nvdec_handle_h265_buffer (GstNvDec * self, GstBuffer * buffer) { GstH265Parser *parser = self->h265_parser; GstH265NalUnit nalu; GstH265ParserResult pres; GstMapInfo map; gboolean have_vps = FALSE; gboolean have_sps = FALSE; gboolean have_pps = FALSE; GstBuffer *new_buf; guint i; if (!gst_buffer_map (buffer, &map, GST_MAP_READ)) { GST_WARNING_OBJECT (self, "Failed to map input buffer"); return gst_buffer_ref (buffer); } memset (&nalu, 0, sizeof (GstH265NalUnit)); do { pres = gst_h265_parser_identify_nalu (parser, map.data, nalu.offset + nalu.size, map.size, &nalu); if (pres == GST_H265_PARSER_NO_NAL_END) pres = GST_H265_PARSER_OK; switch (nalu.type) { case GST_H265_NAL_VPS:{ GstH265VPS vps; pres = gst_h265_parser_parse_vps (parser, &nalu, &vps); if (pres != GST_H265_PARSER_OK) break; have_vps = TRUE; gst_nvdec_store_h265_nal (self, vps.id, nalu.type, &nalu); break; } case GST_H265_NAL_SPS:{ GstH265SPS sps; pres = gst_h265_parser_parse_sps (parser, &nalu, &sps, FALSE); if (pres != GST_H265_PARSER_OK) break; have_sps = TRUE; gst_nvdec_store_h265_nal (self, sps.id, nalu.type, &nalu); break; } case GST_H265_NAL_PPS:{ GstH265PPS pps; pres = gst_h265_parser_parse_pps (parser, &nalu, &pps); if (pres != GST_H265_PARSER_OK) break; have_pps = TRUE; gst_nvdec_store_h265_nal (self, pps.id, nalu.type, &nalu); break; } default: break; } } while (pres == GST_H265_PARSER_OK); gst_buffer_unmap (buffer, &map); if (!self->need_codec_data || (have_sps && have_pps)) { self->need_codec_data = FALSE; return gst_buffer_ref (buffer); } new_buf = gst_buffer_new (); if (!have_vps) { for (i = 0; i < GST_H265_MAX_VPS_COUNT; i++) { if (!self->vps_nals[i]) continue; new_buf = gst_buffer_append (new_buf, gst_buffer_ref (self->vps_nals[i])); } } if (!have_sps) { for (i = 0; i < GST_H265_MAX_SPS_COUNT; i++) { if (!self->sps_nals[i]) continue; have_sps = TRUE; new_buf = gst_buffer_append (new_buf, gst_buffer_ref (self->sps_nals[i])); } } if (!have_pps) { for (i = 0; i < GST_H265_MAX_PPS_COUNT; i++) { if (!self->pps_nals[i]) continue; have_pps = TRUE; new_buf = gst_buffer_append (new_buf, gst_buffer_ref (self->pps_nals[i])); } } if (have_sps && have_pps) self->need_codec_data = FALSE; return gst_buffer_append (new_buf, gst_buffer_ref (buffer)); } static GstBuffer * gst_nvdec_process_input (GstNvDec * self, GstBuffer * inbuf) { GstNvDecClass *klass = GST_NVDEC_GET_CLASS (self); gboolean parse_nal = FALSE; if (!GST_BUFFER_FLAG_IS_SET (inbuf, GST_BUFFER_FLAG_DELTA_UNIT) || self->need_codec_data) { parse_nal = TRUE; } if (klass->codec_type == cudaVideoCodec_MPEG4 && self->codec_data && GST_BUFFER_IS_DISCONT (inbuf)) { return gst_buffer_append (gst_buffer_ref (self->codec_data), gst_buffer_ref (inbuf)); } else if (klass->codec_type == cudaVideoCodec_H264 && parse_nal) { return gst_nvdec_handle_h264_buffer (self, inbuf); } else if (klass->codec_type == cudaVideoCodec_HEVC && parse_nal) { return gst_nvdec_handle_h265_buffer (self, inbuf); } return gst_buffer_ref (inbuf); } static GstFlowReturn gst_nvdec_handle_frame (GstVideoDecoder * decoder, GstVideoCodecFrame * frame) { GstNvDec *nvdec = GST_NVDEC (decoder); GstMapInfo map_info = GST_MAP_INFO_INIT; CUVIDSOURCEDATAPACKET packet = { 0, }; GstBuffer *in_buffer; GST_LOG_OBJECT (nvdec, "handle frame"); /* initialize with zero to keep track of frames */ gst_video_codec_frame_set_user_data (frame, GUINT_TO_POINTER (0), NULL); in_buffer = gst_nvdec_process_input (nvdec, frame->input_buffer); if (!gst_buffer_map (in_buffer, &map_info, GST_MAP_READ)) { GST_ERROR_OBJECT (nvdec, "failed to map input buffer"); gst_buffer_unref (in_buffer); gst_video_codec_frame_unref (frame); return GST_FLOW_ERROR; } packet.payload_size = (gulong) map_info.size; packet.payload = map_info.data; packet.timestamp = frame->pts; packet.flags |= CUVID_PKT_TIMESTAMP; if (nvdec->recv_complete_picture) packet.flags |= CUVID_PKT_ENDOFPICTURE; nvdec->state = GST_NVDEC_STATE_PARSE; nvdec->last_ret = GST_FLOW_OK; if (!gst_cuda_result (CuvidParseVideoData (nvdec->parser, &packet))) GST_WARNING_OBJECT (nvdec, "parser failed"); gst_buffer_unmap (in_buffer, &map_info); gst_buffer_unref (in_buffer); gst_video_codec_frame_unref (frame); return nvdec->last_ret; } static gboolean gst_nvdec_flush (GstVideoDecoder * decoder) { GstNvDec *nvdec = GST_NVDEC (decoder); CUVIDSOURCEDATAPACKET packet = { 0, }; GST_DEBUG_OBJECT (nvdec, "flush"); packet.payload_size = 0; packet.payload = NULL; packet.flags = CUVID_PKT_ENDOFSTREAM; nvdec->state = GST_NVDEC_STATE_PARSE; nvdec->last_ret = GST_FLOW_OK; if (nvdec->parser && !gst_cuda_result (CuvidParseVideoData (nvdec->parser, &packet))) GST_WARNING_OBJECT (nvdec, "parser failed"); nvdec->need_codec_data = TRUE; return TRUE; } static GstFlowReturn gst_nvdec_drain (GstVideoDecoder * decoder) { GstNvDec *nvdec = GST_NVDEC (decoder); CUVIDSOURCEDATAPACKET packet = { 0, }; GST_DEBUG_OBJECT (nvdec, "draining decoder"); packet.payload_size = 0; packet.payload = NULL; packet.flags = CUVID_PKT_ENDOFSTREAM; nvdec->state = GST_NVDEC_STATE_PARSE; nvdec->last_ret = GST_FLOW_OK; if (nvdec->parser && !gst_cuda_result (CuvidParseVideoData (nvdec->parser, &packet))) GST_WARNING_OBJECT (nvdec, "parser failed"); nvdec->need_codec_data = TRUE; return nvdec->last_ret; } static GstFlowReturn gst_nvdec_finish (GstVideoDecoder * decoder) { GST_DEBUG_OBJECT (decoder, "finish"); return gst_nvdec_drain (decoder); } #ifdef HAVE_NVCODEC_GST_GL static void gst_nvdec_check_cuda_device_from_context (GstGLContext * context, gboolean * ret) { guint device_count = 0; CUdevice device_list[1] = { 0, }; CUresult cuda_ret; *ret = FALSE; cuda_ret = CuGLGetDevices (&device_count, device_list, 1, CU_GL_DEVICE_LIST_ALL); if (!gst_cuda_result (cuda_ret) || device_count == 0) return; *ret = TRUE; return; } static gboolean gst_nvdec_ensure_gl_context (GstNvDec * nvdec) { gboolean ret; if (!nvdec->gl_display) { GST_DEBUG_OBJECT (nvdec, "No available OpenGL display"); return FALSE; } if (!gst_gl_query_local_gl_context (GST_ELEMENT (nvdec), GST_PAD_SRC, &nvdec->gl_context)) { GST_INFO_OBJECT (nvdec, "failed to query local OpenGL context"); if (nvdec->gl_context) gst_object_unref (nvdec->gl_context); nvdec->gl_context = gst_gl_display_get_gl_context_for_thread (nvdec->gl_display, NULL); if (!nvdec->gl_context || !gst_gl_display_add_context (nvdec->gl_display, nvdec->gl_context)) { if (nvdec->gl_context) gst_object_unref (nvdec->gl_context); if (!gst_gl_display_create_context (nvdec->gl_display, nvdec->other_gl_context, &nvdec->gl_context, NULL)) { GST_ERROR_OBJECT (nvdec, "failed to create OpenGL context"); return FALSE; } if (!gst_gl_display_add_context (nvdec->gl_display, nvdec->gl_context)) { GST_ERROR_OBJECT (nvdec, "failed to add the OpenGL context to the display"); return FALSE; } } } if (!gst_gl_context_check_gl_version (nvdec->gl_context, SUPPORTED_GL_APIS, 3, 0)) { GST_WARNING_OBJECT (nvdec, "OpenGL context could not support PBO download"); return FALSE; } gst_gl_context_thread_add (nvdec->gl_context, (GstGLContextThreadFunc) gst_nvdec_check_cuda_device_from_context, &ret); if (!ret) { GST_WARNING_OBJECT (nvdec, "Current OpenGL context is not CUDA-compatible"); return FALSE; } return TRUE; } static gboolean gst_nvdec_ensure_gl_pool (GstNvDec * nvdec, GstQuery * query) { GstCaps *outcaps; GstBufferPool *pool = NULL; guint n, size, min, max; GstVideoInfo vinfo = { 0, }; GstStructure *config; GST_DEBUG_OBJECT (nvdec, "decide allocation"); gst_query_parse_allocation (query, &outcaps, NULL); n = gst_query_get_n_allocation_pools (query); if (n > 0) gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max); if (pool && !GST_IS_GL_BUFFER_POOL (pool)) { gst_object_unref (pool); pool = NULL; } if (!pool) { GST_DEBUG_OBJECT (nvdec, "no downstream pool, create our pool"); pool = gst_gl_buffer_pool_new (nvdec->gl_context); if (outcaps) gst_video_info_from_caps (&vinfo, outcaps); size = (guint) vinfo.size; min = max = 0; } config = gst_buffer_pool_get_config (pool); gst_buffer_pool_config_set_params (config, outcaps, size, min, max); gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META); gst_buffer_pool_set_config (pool, config); if (n > 0) gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max); else gst_query_add_allocation_pool (query, pool, size, min, max); gst_object_unref (pool); return TRUE; } #endif static gboolean gst_nvdec_ensure_cuda_pool (GstNvDec * nvdec, GstQuery * query) { GstCaps *outcaps; GstBufferPool *pool = NULL; guint n, size, min, max; GstVideoInfo vinfo = { 0, }; GstStructure *config; gst_query_parse_allocation (query, &outcaps, NULL); n = gst_query_get_n_allocation_pools (query); if (n > 0) { gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max); if (pool && !GST_IS_CUDA_BUFFER_POOL (pool)) { gst_object_unref (pool); pool = NULL; } } if (!pool) { GST_DEBUG_OBJECT (nvdec, "no downstream pool, create our pool"); pool = gst_cuda_buffer_pool_new (nvdec->cuda_ctx); if (outcaps) gst_video_info_from_caps (&vinfo, outcaps); size = (guint) vinfo.size; min = max = 0; } config = gst_buffer_pool_get_config (pool); gst_buffer_pool_config_set_params (config, outcaps, size, min, max); gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META); gst_buffer_pool_set_config (pool, config); if (n > 0) gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max); else gst_query_add_allocation_pool (query, pool, size, min, max); gst_object_unref (pool); return TRUE; } static gboolean gst_nvdec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query) { GstNvDec *nvdec = GST_NVDEC (decoder); GST_DEBUG_OBJECT (nvdec, "decide allocation"); if (nvdec->mem_type == GST_NVDEC_MEM_TYPE_SYSTEM) goto done; #ifdef HAVE_NVCODEC_GST_GL if (nvdec->mem_type == GST_NVDEC_MEM_TYPE_GL) { if (!gst_nvdec_ensure_gl_pool (nvdec, query)) return FALSE; } else #endif if (!gst_nvdec_ensure_cuda_pool (nvdec, query)) { return FALSE; } done: return GST_VIDEO_DECODER_CLASS (gst_nvdec_parent_class)->decide_allocation (decoder, query); } static gboolean gst_nvdec_src_query (GstVideoDecoder * decoder, GstQuery * query) { GstNvDec *nvdec = GST_NVDEC (decoder); switch (GST_QUERY_TYPE (query)) { case GST_QUERY_CONTEXT: if (gst_cuda_handle_context_query (GST_ELEMENT (decoder), query, nvdec->cuda_ctx)) { return TRUE; } #ifdef HAVE_NVCODEC_GST_GL if (gst_gl_handle_context_query (GST_ELEMENT (decoder), query, nvdec->gl_display, nvdec->gl_context, nvdec->other_gl_context)) { if (nvdec->gl_display) gst_gl_display_filter_gl_api (GST_GL_DISPLAY (nvdec->gl_display), SUPPORTED_GL_APIS); return TRUE; } #endif break; default: break; } return GST_VIDEO_DECODER_CLASS (gst_nvdec_parent_class)->src_query (decoder, query); } static void gst_nvdec_set_context (GstElement * element, GstContext * context) { GstNvDec *nvdec = GST_NVDEC (element); GstNvDecClass *klass = GST_NVDEC_GET_CLASS (nvdec); GST_DEBUG_OBJECT (nvdec, "set context %s", gst_context_get_context_type (context)); if (gst_cuda_handle_set_context (element, context, klass->cuda_device_id, &nvdec->cuda_ctx)) { goto done; } #ifdef HAVE_NVCODEC_GST_GL gst_gl_handle_set_context (element, context, &nvdec->gl_display, &nvdec->other_gl_context); #endif done: GST_ELEMENT_CLASS (gst_nvdec_parent_class)->set_context (element, context); } typedef struct { GstCaps *sink_caps; GstCaps *src_caps; cudaVideoCodec codec_type; gchar *codec; guint cuda_device_id; gboolean is_default; } GstNvDecClassData; static void gst_nvdec_subclass_init (gpointer g_class, gpointer data) { GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); GstNvDecClass *nvdec_class = GST_NVDEC_CLASS (g_class); GstNvDecClassData *cdata = data; gchar *long_name; if (cdata->is_default) { long_name = g_strdup_printf ("NVDEC %s Video Decoder", cdata->codec); } else { long_name = g_strdup_printf ("NVDEC %s Video Decoder with device %d", cdata->codec, cdata->cuda_device_id); } gst_element_class_set_metadata (element_class, long_name, "Codec/Decoder/Video/Hardware", "NVDEC video decoder", "Ericsson AB, http://www.ericsson.com, " "Seungha Yang "); g_free (long_name); 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)); nvdec_class->codec_type = cdata->codec_type; nvdec_class->cuda_device_id = cdata->cuda_device_id; gst_caps_unref (cdata->sink_caps); gst_caps_unref (cdata->src_caps); g_free (cdata->codec); g_free (cdata); } static void gst_nvdec_subclass_register (GstPlugin * plugin, GType type, cudaVideoCodec codec_type, const gchar * codec, guint device_id, guint rank, GstCaps * sink_caps, GstCaps * src_caps) { GTypeQuery type_query; GTypeInfo type_info = { 0, }; GType subtype; gchar *type_name; GstNvDecClassData *cdata; gboolean is_default = TRUE; cdata = g_new0 (GstNvDecClassData, 1); cdata->sink_caps = gst_caps_ref (sink_caps); cdata->src_caps = gst_caps_ref (src_caps); cdata->codec_type = codec_type; cdata->codec = g_strdup (codec); cdata->cuda_device_id = device_id; g_type_query (type, &type_query); memset (&type_info, 0, sizeof (type_info)); type_info.class_size = type_query.class_size; type_info.instance_size = type_query.instance_size; type_info.class_init = gst_nvdec_subclass_init; type_info.class_data = cdata; type_name = g_strdup_printf ("nv%sdec", codec); if (g_type_from_name (type_name) != 0) { g_free (type_name); type_name = g_strdup_printf ("nv%sdevice%ddec", codec, device_id); is_default = FALSE; } cdata->is_default = is_default; subtype = g_type_register_static (type, type_name, &type_info, 0); /* make lower rank than default device */ if (rank > 0 && !is_default) rank--; if (!gst_element_register (plugin, type_name, rank, subtype)) GST_WARNING ("Failed to register plugin '%s'", type_name); g_free (type_name); } void gst_nvdec_plugin_init (GstPlugin * plugin, guint device_index, cudaVideoCodec codec, const gchar * codec_name, GstCaps * sink_template, GstCaps * src_template) { gst_nvdec_subclass_register (plugin, GST_TYPE_NVDEC, codec, codec_name, device_index, GST_RANK_PRIMARY, sink_template, src_template); }