/* * Copyright (c) 2014, 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 HOLDER 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 "gstopenh264enc.h" #include #include #include #include #include #include #include #include #include #define GST_OPENH264ENC_GET_PRIVATE(obj) \ (G_TYPE_INSTANCE_GET_PRIVATE((obj), GST_TYPE_OPENH264ENC, GstOpenh264EncPrivate)) GST_DEBUG_CATEGORY_STATIC (gst_openh264enc_debug_category); #define GST_CAT_DEFAULT gst_openh264enc_debug_category #define GST_TYPE_USAGE_TYPE (gst_openh264enc_usage_type_get_type ()) static GType gst_openh264enc_usage_type_get_type (void) { static GType usage_type = 0; if (!usage_type) { static const GEnumValue usage_types[] = { {CAMERA_VIDEO_REAL_TIME, "video from camera", "camera"}, {SCREEN_CONTENT_REAL_TIME, "screen content", "screen"}, {0, NULL, NULL}, }; usage_type = g_enum_register_static ("EUsageType", usage_types); } return usage_type; } #define GST_TYPE_RC_MODES (gst_openh264enc_rc_modes_get_type ()) static GType gst_openh264enc_rc_modes_get_type (void) { static GType rc_modes_type = 0; if (!rc_modes_type) { static const GEnumValue rc_modes_types[] = { {RC_QUALITY_MODE, "Quality mode", "quality"}, {RC_BITRATE_MODE, "Bitrate mode", "bitrate"}, {RC_BUFFERBASED_MODE, "No bitrate control, just using buffer status", "buffer"}, {RC_OFF_MODE, "Rate control off mode", "off"}, {0, NULL, NULL}, }; rc_modes_type = g_enum_register_static ("RC_MODES", rc_modes_types); } return rc_modes_type; } typedef enum _GstOpenh264encDeblockingMode { GST_OPENH264_DEBLOCKING_ON = 0, GST_OPENH264_DEBLOCKING_OFF = 1, GST_OPENH264_DEBLOCKING_NOT_SLICE_BOUNDARIES = 2 } GstOpenh264encDeblockingMode; #define GST_TYPE_OPENH264ENC_DEBLOCKING_MODE (gst_openh264enc_deblocking_mode_get_type ()) static GType gst_openh264enc_deblocking_mode_get_type (void) { static const GEnumValue types[] = { {GST_OPENH264_DEBLOCKING_ON, "Deblocking on", "on"}, {GST_OPENH264_DEBLOCKING_OFF, "Deblocking off", "off"}, {GST_OPENH264_DEBLOCKING_NOT_SLICE_BOUNDARIES, "Deblocking on, except for slice boundaries", "not-slice-boundaries"}, {0, NULL, NULL}, }; static gsize id = 0; if (g_once_init_enter (& id)) { GType _id = g_enum_register_static ("GstOpenh264encDeblockingModes", types); g_once_init_leave (& id, _id); } return (GType) id; } #define GST_TYPE_OPENH264ENC_SLICE_MODE (gst_openh264enc_slice_mode_get_type ()) static GType gst_openh264enc_slice_mode_get_type (void) { static const GEnumValue types[] = { {SM_FIXEDSLCNUM_SLICE, "num-slices slices", "n-slices"}, {SM_AUTO_SLICE, "Number of slices equal to number of threads", "auto"}, {0, NULL, NULL}, }; static gsize id = 0; if (g_once_init_enter (& id)) { GType _id = g_enum_register_static ("GstOpenh264encSliceModes", types); g_once_init_leave (& id, _id); } return (GType) id; } #define GST_TYPE_OPENH264ENC_COMPLEXITY (gst_openh264enc_complexity_get_type ()) static GType gst_openh264enc_complexity_get_type (void) { static const GEnumValue types[] = { {LOW_COMPLEXITY, "Low complexity / high speed encoding", "low"}, {MEDIUM_COMPLEXITY, "Medium complexity / medium speed encoding", "medium"}, {HIGH_COMPLEXITY, "High complexity / low speed encoding", "high"}, {0, NULL, NULL}, }; static gsize id = 0; if (g_once_init_enter (& id)) { GType _id = g_enum_register_static ("GstOpenh264encComplexity", types); g_once_init_leave (& id, _id); } return (GType) id; } /* prototypes */ static void gst_openh264enc_set_property (GObject * object, guint property_id, const GValue * value, GParamSpec * pspec); static void gst_openh264enc_get_property (GObject * object, guint property_id, GValue * value, GParamSpec * pspec); static void gst_openh264enc_finalize (GObject * object); static gboolean gst_openh264enc_start (GstVideoEncoder * encoder); static gboolean gst_openh264enc_stop (GstVideoEncoder * encoder); static gboolean gst_openh264enc_set_format (GstVideoEncoder * encoder, GstVideoCodecState * state); static GstFlowReturn gst_openh264enc_handle_frame (GstVideoEncoder * encoder, GstVideoCodecFrame * frame); static GstFlowReturn gst_openh264enc_finish (GstVideoEncoder * encoder); static gboolean gst_openh264enc_propose_allocation (GstVideoEncoder * encoder, GstQuery * query); static void gst_openh264enc_set_usage_type (GstOpenh264Enc * openh264enc, gint usage_type); static void gst_openh264enc_set_rate_control (GstOpenh264Enc * openh264enc, gint rc_mode); #define DEFAULT_BITRATE (128000) #define DEFAULT_GOP_SIZE (90) #define DEFAULT_MAX_SLICE_SIZE (1500000) #define DROP_BITRATE 20000 #define START_FRAMERATE 30 #define DEFAULT_USAGE_TYPE CAMERA_VIDEO_REAL_TIME #define DEFAULT_RATE_CONTROL RC_QUALITY_MODE #define DEFAULT_MULTI_THREAD 0 #define DEFAULT_ENABLE_DENOISE FALSE #define DEFAULT_ENABLE_FRAME_SKIP FALSE #define DEFAULT_DEBLOCKING_MODE GST_OPENH264_DEBLOCKING_ON #define DEFAULT_BACKGROUND_DETECTION TRUE #define DEFAULT_ADAPTIVE_QUANTIZATION TRUE #define DEFAULT_SCENE_CHANGE_DETECTION TRUE #define DEFAULT_SLICE_MODE SM_FIXEDSLCNUM_SLICE #define DEFAULT_NUM_SLICES 1 #define DEFAULT_COMPLEXITY MEDIUM_COMPLEXITY enum { PROP_0, PROP_USAGE_TYPE, PROP_BITRATE, PROP_GOP_SIZE, PROP_MAX_SLICE_SIZE, PROP_RATE_CONTROL, PROP_MULTI_THREAD, PROP_ENABLE_DENOISE, PROP_ENABLE_FRAME_SKIP, PROP_DEBLOCKING_MODE, PROP_BACKGROUND_DETECTION, PROP_ADAPTIVE_QUANTIZATION, PROP_SCENE_CHANGE_DETECTION, PROP_SLICE_MODE, PROP_NUM_SLICES, PROP_COMPLEXITY, N_PROPERTIES }; struct _GstOpenh264EncPrivate { ISVCEncoder *encoder; EUsageType usage_type; guint gop_size; RC_MODES rate_control; guint max_slice_size; guint bitrate; guint framerate; guint multi_thread; gboolean enable_denoise; gboolean enable_frame_skip; GstVideoCodecState *input_state; guint32 drop_bitrate; guint64 time_per_frame; guint64 frame_count; guint64 previous_timestamp; GstOpenh264encDeblockingMode deblocking_mode; gboolean background_detection; gboolean adaptive_quantization; gboolean scene_change_detection; SliceModeEnum slice_mode; guint num_slices; ECOMPLEXITY_MODE complexity; }; /* pad templates */ static GstStaticPadTemplate gst_openh264enc_sink_template = GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("I420")) ); static GstStaticPadTemplate gst_openh264enc_src_template = GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS ("video/x-h264, stream-format=(string)\"avc\", alignment=(string)\"au\", profile=(string)\"baseline\"") ); /* class initialization */ G_DEFINE_TYPE_WITH_CODE (GstOpenh264Enc, gst_openh264enc, GST_TYPE_VIDEO_ENCODER, G_IMPLEMENT_INTERFACE (GST_TYPE_PRESET, NULL); GST_DEBUG_CATEGORY_INIT (gst_openh264enc_debug_category, "openh264enc", 0, "debug category for openh264enc element")); static void gst_openh264enc_class_init (GstOpenh264EncClass * klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); GstVideoEncoderClass *video_encoder_class = GST_VIDEO_ENCODER_CLASS (klass); g_type_class_add_private (klass, sizeof (GstOpenh264EncPrivate)); /* Setting up pads and setting metadata should be moved to base_class_init if you intend to subclass this class. */ gst_element_class_add_static_pad_template (GST_ELEMENT_CLASS (klass), &gst_openh264enc_src_template); gst_element_class_add_static_pad_template (GST_ELEMENT_CLASS (klass), &gst_openh264enc_sink_template); gst_element_class_set_static_metadata (GST_ELEMENT_CLASS (klass), "OpenH264 video encoder", "Encoder/Video", "OpenH264 video encoder", "Ericsson AB, http://www.ericsson.com"); gobject_class->set_property = gst_openh264enc_set_property; gobject_class->get_property = gst_openh264enc_get_property; gobject_class->finalize = gst_openh264enc_finalize; video_encoder_class->start = GST_DEBUG_FUNCPTR (gst_openh264enc_start); video_encoder_class->stop = GST_DEBUG_FUNCPTR (gst_openh264enc_stop); video_encoder_class->set_format = GST_DEBUG_FUNCPTR (gst_openh264enc_set_format); video_encoder_class->handle_frame = GST_DEBUG_FUNCPTR (gst_openh264enc_handle_frame); video_encoder_class->propose_allocation = GST_DEBUG_FUNCPTR (gst_openh264enc_propose_allocation); video_encoder_class->finish = GST_DEBUG_FUNCPTR (gst_openh264enc_finish); /* define properties */ g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_USAGE_TYPE, g_param_spec_enum ("usage-type", "Usage type", "Type of video content", GST_TYPE_USAGE_TYPE, CAMERA_VIDEO_REAL_TIME, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_RATE_CONTROL, g_param_spec_enum ("rate-control", "Rate control", "Rate control mode", GST_TYPE_RC_MODES, RC_QUALITY_MODE, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MULTI_THREAD, g_param_spec_uint ("multi-thread", "Number of threads", "The number of threads.", 0, G_MAXUINT, DEFAULT_MULTI_THREAD, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_ENABLE_DENOISE, g_param_spec_boolean ("enable-denoise", "Denoise Control", "Denoise control", FALSE, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_ENABLE_FRAME_SKIP, g_param_spec_boolean ("enable-frame-skip", "Skip Frames", "Skip frames to reach target bitrate", FALSE, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_BITRATE, g_param_spec_uint ("bitrate", "Bitrate", "Bitrate (in bits per second)", 0, G_MAXUINT, DEFAULT_BITRATE, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_GOP_SIZE, g_param_spec_uint ("gop-size", "GOP size", "Number of frames between intra frames", 0, G_MAXUINT, DEFAULT_GOP_SIZE, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_MAX_SLICE_SIZE, g_param_spec_uint ("max-slice-size", "Max slice size", "The maximum size of one slice (in bytes).", 0, G_MAXUINT, DEFAULT_MAX_SLICE_SIZE, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_DEBLOCKING_MODE, g_param_spec_enum ("deblocking", "Deblocking mode", "Deblocking mode", GST_TYPE_OPENH264ENC_DEBLOCKING_MODE, DEFAULT_DEBLOCKING_MODE, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_BACKGROUND_DETECTION, g_param_spec_boolean ("background-detection", "Background detection", "Background detection", DEFAULT_BACKGROUND_DETECTION, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_ADAPTIVE_QUANTIZATION, g_param_spec_boolean ("adaptive-quantization", "Adaptive quantization", "Adaptive quantization", DEFAULT_ADAPTIVE_QUANTIZATION, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_SCENE_CHANGE_DETECTION, g_param_spec_boolean ("scene-change-detection", "Scene change detection", "Scene change detection", DEFAULT_SCENE_CHANGE_DETECTION, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SLICE_MODE, g_param_spec_enum ("slice-mode", "Slice mode", "Slice mode", GST_TYPE_OPENH264ENC_SLICE_MODE, DEFAULT_SLICE_MODE, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_NUM_SLICES, g_param_spec_uint ("num-slices", "Number of slices", "The number of slices (needs slice-mode=n-slices)", 0, G_MAXUINT, DEFAULT_NUM_SLICES, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_COMPLEXITY, g_param_spec_enum ("complexity", "Complexity / quality / speed tradeoff", "Complexity", GST_TYPE_OPENH264ENC_COMPLEXITY, DEFAULT_COMPLEXITY, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); } static void gst_openh264enc_init (GstOpenh264Enc * openh264enc) { openh264enc->priv = GST_OPENH264ENC_GET_PRIVATE (openh264enc); openh264enc->priv->gop_size = DEFAULT_GOP_SIZE; openh264enc->priv->usage_type = DEFAULT_USAGE_TYPE; openh264enc->priv->rate_control = DEFAULT_RATE_CONTROL; openh264enc->priv->multi_thread = DEFAULT_MULTI_THREAD; openh264enc->priv->max_slice_size = DEFAULT_MAX_SLICE_SIZE; openh264enc->priv->bitrate = DEFAULT_BITRATE; openh264enc->priv->framerate = START_FRAMERATE; openh264enc->priv->input_state = NULL; openh264enc->priv->time_per_frame = GST_SECOND / openh264enc->priv->framerate; openh264enc->priv->frame_count = 0; openh264enc->priv->previous_timestamp = 0; openh264enc->priv->drop_bitrate = DROP_BITRATE; openh264enc->priv->enable_denoise = DEFAULT_ENABLE_DENOISE; openh264enc->priv->enable_frame_skip = DEFAULT_ENABLE_FRAME_SKIP; openh264enc->priv->deblocking_mode = DEFAULT_DEBLOCKING_MODE; openh264enc->priv->background_detection = DEFAULT_BACKGROUND_DETECTION; openh264enc->priv->adaptive_quantization = DEFAULT_ADAPTIVE_QUANTIZATION; openh264enc->priv->scene_change_detection = DEFAULT_SCENE_CHANGE_DETECTION; openh264enc->priv->slice_mode = DEFAULT_SLICE_MODE; openh264enc->priv->num_slices = DEFAULT_NUM_SLICES; openh264enc->priv->encoder = NULL; openh264enc->priv->complexity = DEFAULT_COMPLEXITY; gst_openh264enc_set_usage_type (openh264enc, CAMERA_VIDEO_REAL_TIME); gst_openh264enc_set_rate_control (openh264enc, RC_QUALITY_MODE); } static void gst_openh264enc_set_usage_type (GstOpenh264Enc * openh264enc, gint usage_type) { switch (usage_type) { case CAMERA_VIDEO_REAL_TIME: openh264enc->priv->usage_type = CAMERA_VIDEO_REAL_TIME; break; case SCREEN_CONTENT_REAL_TIME: openh264enc->priv->usage_type = SCREEN_CONTENT_REAL_TIME; break; default: g_assert_not_reached (); } } static void gst_openh264enc_set_rate_control (GstOpenh264Enc * openh264enc, gint rc_mode) { switch (rc_mode) { case RC_QUALITY_MODE: openh264enc->priv->rate_control = RC_QUALITY_MODE; break; case RC_BITRATE_MODE: openh264enc->priv->rate_control = RC_BITRATE_MODE; break; case RC_BUFFERBASED_MODE: openh264enc->priv->rate_control = RC_BUFFERBASED_MODE; break; case RC_OFF_MODE: openh264enc->priv->rate_control = RC_OFF_MODE; break; default: g_assert_not_reached (); } } void gst_openh264enc_set_property (GObject * object, guint property_id, const GValue * value, GParamSpec * pspec) { GstOpenh264Enc *openh264enc = GST_OPENH264ENC (object); GST_DEBUG_OBJECT (openh264enc, "set_property"); switch (property_id) { case PROP_BITRATE: openh264enc->priv->bitrate = g_value_get_uint (value); break; case PROP_MULTI_THREAD: openh264enc->priv->multi_thread = g_value_get_uint (value); break; case PROP_USAGE_TYPE: gst_openh264enc_set_usage_type (openh264enc, g_value_get_enum (value)); break; case PROP_ENABLE_DENOISE: openh264enc->priv->enable_denoise = g_value_get_boolean (value); break; case PROP_ENABLE_FRAME_SKIP: openh264enc->priv->enable_frame_skip = g_value_get_boolean (value); break; case PROP_RATE_CONTROL: gst_openh264enc_set_rate_control (openh264enc, g_value_get_enum (value)); break; case PROP_GOP_SIZE: openh264enc->priv->gop_size = g_value_get_uint (value); break; case PROP_MAX_SLICE_SIZE: openh264enc->priv->max_slice_size = g_value_get_uint (value); break; case PROP_DEBLOCKING_MODE: openh264enc->priv->deblocking_mode = (GstOpenh264encDeblockingMode) g_value_get_enum (value); break; case PROP_BACKGROUND_DETECTION: openh264enc->priv->background_detection = g_value_get_boolean (value); break; case PROP_ADAPTIVE_QUANTIZATION: openh264enc->priv->adaptive_quantization = g_value_get_boolean (value); break; case PROP_SCENE_CHANGE_DETECTION: openh264enc->priv->scene_change_detection = g_value_get_boolean (value); break; case PROP_SLICE_MODE: openh264enc->priv->slice_mode = (SliceModeEnum) g_value_get_enum (value); break; case PROP_NUM_SLICES: openh264enc->priv->num_slices = g_value_get_uint (value); break; case PROP_COMPLEXITY: openh264enc->priv->complexity = (ECOMPLEXITY_MODE) g_value_get_enum (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); break; } } void gst_openh264enc_get_property (GObject * object, guint property_id, GValue * value, GParamSpec * pspec) { GstOpenh264Enc *openh264enc = GST_OPENH264ENC (object); GST_DEBUG_OBJECT (openh264enc, "get_property"); switch (property_id) { case PROP_USAGE_TYPE: g_value_set_enum (value, openh264enc->priv->usage_type); break; case PROP_RATE_CONTROL: g_value_set_enum (value, openh264enc->priv->rate_control); break; case PROP_BITRATE: g_value_set_uint (value, openh264enc->priv->bitrate); break; case PROP_ENABLE_DENOISE: g_value_set_boolean (value, openh264enc->priv->enable_denoise); break; case PROP_ENABLE_FRAME_SKIP: g_value_set_boolean (value, openh264enc->priv->enable_frame_skip); break; case PROP_MULTI_THREAD: g_value_set_uint (value, openh264enc->priv->multi_thread); break; case PROP_GOP_SIZE: g_value_set_uint (value, openh264enc->priv->gop_size); break; case PROP_MAX_SLICE_SIZE: g_value_set_uint (value, openh264enc->priv->max_slice_size); break; case PROP_DEBLOCKING_MODE: g_value_set_enum (value, openh264enc->priv->deblocking_mode); break; case PROP_BACKGROUND_DETECTION: g_value_set_boolean (value, openh264enc->priv->background_detection); break; case PROP_ADAPTIVE_QUANTIZATION: g_value_set_boolean (value, openh264enc->priv->adaptive_quantization); break; case PROP_SCENE_CHANGE_DETECTION: g_value_set_boolean (value, openh264enc->priv->scene_change_detection); break; case PROP_SLICE_MODE: g_value_set_enum (value, openh264enc->priv->slice_mode); break; case PROP_NUM_SLICES: g_value_set_uint (value, openh264enc->priv->num_slices); break; case PROP_COMPLEXITY: g_value_set_enum (value, openh264enc->priv->complexity); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); break; } } void gst_openh264enc_finalize (GObject * object) { GstOpenh264Enc *openh264enc = GST_OPENH264ENC (object); GST_DEBUG_OBJECT (openh264enc, "finalize"); /* clean up object here */ if (openh264enc->priv->input_state) { gst_video_codec_state_unref (openh264enc->priv->input_state); } openh264enc->priv->input_state = NULL; G_OBJECT_CLASS (gst_openh264enc_parent_class)->finalize (object); } static gboolean gst_openh264enc_start (GstVideoEncoder * encoder) { GstOpenh264Enc *openh264enc = GST_OPENH264ENC (encoder); GST_DEBUG_OBJECT (openh264enc, "start"); return TRUE; } static gboolean gst_openh264enc_stop (GstVideoEncoder * encoder) { GstOpenh264Enc *openh264enc; openh264enc = GST_OPENH264ENC (encoder); if (openh264enc->priv->encoder != NULL) { openh264enc->priv->encoder->Uninitialize (); WelsDestroySVCEncoder (openh264enc->priv->encoder); openh264enc->priv->encoder = NULL; } openh264enc->priv->encoder = NULL; if (openh264enc->priv->input_state) { gst_video_codec_state_unref (openh264enc->priv->input_state); } openh264enc->priv->input_state = NULL; GST_DEBUG_OBJECT (openh264enc, "openh264_enc_stop called"); return TRUE; } static gboolean gst_openh264enc_set_format (GstVideoEncoder * encoder, GstVideoCodecState * state) { GstOpenh264Enc *openh264enc = GST_OPENH264ENC (encoder); GstOpenh264EncPrivate *priv = openh264enc->priv; gchar *debug_caps; SFrameBSInfo bsInfo; guint width, height, fps_n, fps_d; SEncParamExt enc_params; gint ret; guchar *nal_sps_data = NULL; gint nal_sps_length = 0; guchar *nal_pps_data = NULL; gint nal_pps_length = 0; guchar *sps_tmp_buf; guchar *codec_data_tmp_buf; GstBuffer *codec_data; GstCaps *outcaps; GstVideoCodecState *output_state; openh264enc->priv->frame_count = 0; int video_format = videoFormatI420; debug_caps = gst_caps_to_string (state->caps); GST_DEBUG_OBJECT (openh264enc, "gst_e26d4_enc_set_format called, caps: %s", debug_caps); g_free (debug_caps); gst_openh264enc_stop (encoder); if (priv->input_state) { gst_video_codec_state_unref (priv->input_state); } priv->input_state = gst_video_codec_state_ref (state); width = GST_VIDEO_INFO_WIDTH (&state->info); height = GST_VIDEO_INFO_HEIGHT (&state->info); fps_n = GST_VIDEO_INFO_FPS_N (&state->info); fps_d = GST_VIDEO_INFO_FPS_D (&state->info); if (priv->encoder != NULL) { priv->encoder->Uninitialize (); WelsDestroySVCEncoder (priv->encoder); priv->encoder = NULL; } WelsCreateSVCEncoder (&(priv->encoder)); unsigned int uiTraceLevel = WELS_LOG_ERROR; priv->encoder->SetOption(ENCODER_OPTION_TRACE_LEVEL, &uiTraceLevel); priv->encoder->GetDefaultParams (&enc_params); enc_params.iUsageType = openh264enc->priv->usage_type; enc_params.iPicWidth = width; enc_params.iPicHeight = height; enc_params.iTargetBitrate = openh264enc->priv->bitrate; enc_params.iRCMode = RC_QUALITY_MODE; enc_params.iTemporalLayerNum = 1; enc_params.iSpatialLayerNum = 1; enc_params.iLtrMarkPeriod = 30; enc_params.iMultipleThreadIdc = openh264enc->priv->multi_thread; enc_params.bEnableDenoise = openh264enc->priv->enable_denoise; enc_params.iComplexityMode = priv->complexity; enc_params.uiIntraPeriod = priv->gop_size; enc_params.bEnableBackgroundDetection = openh264enc->priv->background_detection; enc_params.bEnableAdaptiveQuant = openh264enc->priv->adaptive_quantization; enc_params.bEnableSceneChangeDetect = openh264enc->priv->scene_change_detection; enc_params.bEnableFrameSkip = openh264enc->priv->enable_frame_skip; enc_params.bEnableLongTermReference = 0; #if OPENH264_MINOR >= 4 enc_params.eSpsPpsIdStrategy = CONSTANT_ID; #else enc_params.bEnableSpsPpsIdAddition = 1; #endif enc_params.bPrefixNalAddingCtrl = 0; enc_params.fMaxFrameRate = fps_n * 1.0 / fps_d; enc_params.iLoopFilterDisableIdc = openh264enc->priv->deblocking_mode; enc_params.sSpatialLayers[0].uiProfileIdc = PRO_BASELINE; enc_params.sSpatialLayers[0].iVideoWidth = width; enc_params.sSpatialLayers[0].iVideoHeight = height; enc_params.sSpatialLayers[0].fFrameRate = fps_n * 1.0 / fps_d; enc_params.sSpatialLayers[0].iSpatialBitrate = openh264enc->priv->bitrate; enc_params.sSpatialLayers[0].sSliceCfg.uiSliceMode = openh264enc->priv->slice_mode; enc_params.sSpatialLayers[0].sSliceCfg.sSliceArgument.uiSliceNum = openh264enc->priv->num_slices; priv->framerate = (1 + fps_n / fps_d); ret = priv->encoder->InitializeExt (&enc_params); if (ret != cmResultSuccess) { GST_ERROR_OBJECT (openh264enc, "failed to initialize encoder"); return FALSE; } priv->encoder->SetOption(ENCODER_OPTION_DATAFORMAT, &video_format); memset (&bsInfo, 0, sizeof (SFrameBSInfo)); ret = priv->encoder->EncodeParameterSets (&bsInfo); nal_sps_data = bsInfo.sLayerInfo[0].pBsBuf + 4; nal_sps_length = bsInfo.sLayerInfo[0].pNalLengthInByte[0] - 4; nal_pps_data = bsInfo.sLayerInfo[0].pBsBuf + nal_sps_length + 8; nal_pps_length = bsInfo.sLayerInfo[0].pNalLengthInByte[1] - 4; if (ret != cmResultSuccess) { GST_ELEMENT_ERROR (openh264enc, STREAM, ENCODE, ("Could not create headers"), ("Could not create SPS")); return FALSE; } sps_tmp_buf = (guchar *) (g_memdup (nal_sps_data, nal_sps_length)); codec_data_tmp_buf = (guchar *) g_malloc (5 + 3 + nal_sps_length + 3 + nal_pps_length); codec_data_tmp_buf[0] = 1; /* version 1 */ ; codec_data_tmp_buf[1] = sps_tmp_buf[1]; /* profile */ codec_data_tmp_buf[2] = sps_tmp_buf[2]; /* profile constraints */ codec_data_tmp_buf[3] = sps_tmp_buf[3]; /* level */ codec_data_tmp_buf[4] = 1; /* NAL length marker length minus one */ codec_data_tmp_buf[5] = 1; /* Number of SPS */ GST_WRITE_UINT16_BE (codec_data_tmp_buf + 6, nal_sps_length); memcpy (codec_data_tmp_buf + 8, sps_tmp_buf, nal_sps_length); g_free (sps_tmp_buf); codec_data_tmp_buf[8 + nal_sps_length] = 1; /* Number of PPS */ GST_WRITE_UINT16_BE (codec_data_tmp_buf + 8 + nal_sps_length + 1, nal_pps_length); memcpy (codec_data_tmp_buf + 8 + nal_sps_length + 3, nal_pps_data, nal_pps_length); GST_DEBUG_OBJECT (openh264enc, "Got SPS of size %d and PPS of size %d", nal_sps_length, nal_pps_length); codec_data = gst_buffer_new_wrapped (codec_data_tmp_buf, 5 + 3 + nal_sps_length + 3 + nal_pps_length); outcaps = gst_caps_copy (gst_static_pad_template_get_caps (&gst_openh264enc_src_template)); gst_caps_set_simple (outcaps, "codec_data", GST_TYPE_BUFFER, codec_data, NULL); gst_buffer_unref (codec_data); output_state = gst_video_encoder_set_output_state (encoder, outcaps, state); gst_video_codec_state_unref (output_state); return gst_video_encoder_negotiate (encoder); } static gboolean gst_openh264enc_propose_allocation (GstVideoEncoder * encoder, GstQuery * query) { gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL); return GST_VIDEO_ENCODER_CLASS (gst_openh264enc_parent_class)->propose_allocation (encoder, query); } static GstFlowReturn gst_openh264enc_handle_frame (GstVideoEncoder * encoder, GstVideoCodecFrame * frame) { GstOpenh264Enc *openh264enc = GST_OPENH264ENC (encoder); SSourcePicture *src_pic = NULL; GstVideoFrame video_frame; gboolean force_keyframe; gint ret; SFrameBSInfo frame_info; gfloat fps; GstVideoEncoder *base_encoder = GST_VIDEO_ENCODER (openh264enc); if (frame) { src_pic = new SSourcePicture; if (src_pic == NULL) { if (frame) gst_video_codec_frame_unref (frame); return GST_FLOW_ERROR; } //fill default src_pic src_pic->iColorFormat = videoFormatI420; src_pic->uiTimeStamp = 0; } openh264enc->priv->frame_count++; if (frame) { if (G_UNLIKELY (openh264enc->priv->frame_count == 1)) { openh264enc->priv->time_per_frame = (GST_NSECOND / openh264enc->priv->framerate); openh264enc->priv->previous_timestamp = frame->pts; } else { openh264enc->priv->time_per_frame = openh264enc->priv->time_per_frame * 0.8 + (frame->pts - openh264enc->priv->previous_timestamp) * 0.2; openh264enc->priv->previous_timestamp = frame->pts; if (openh264enc->priv->frame_count % 10 == 0) { fps = GST_SECOND / (gdouble) openh264enc->priv->time_per_frame; openh264enc->priv->encoder->SetOption (ENCODER_OPTION_FRAME_RATE, &fps); } } } if (openh264enc->priv->bitrate <= openh264enc->priv->drop_bitrate) { GST_LOG_OBJECT (openh264enc, "Dropped frame due to too low bitrate"); if (frame) { gst_video_encoder_finish_frame (encoder, frame); delete src_pic; } return GST_FLOW_OK; } if (frame) { gst_video_frame_map (&video_frame, &openh264enc->priv->input_state->info, frame->input_buffer, GST_MAP_READ); src_pic->iPicWidth = GST_VIDEO_FRAME_WIDTH (&video_frame); src_pic->iPicHeight = GST_VIDEO_FRAME_HEIGHT (&video_frame); src_pic->iStride[0] = GST_VIDEO_FRAME_COMP_STRIDE (&video_frame, 0); src_pic->iStride[1] = GST_VIDEO_FRAME_COMP_STRIDE (&video_frame, 1); src_pic->iStride[2] = GST_VIDEO_FRAME_COMP_STRIDE (&video_frame, 2); src_pic->pData[0] = GST_VIDEO_FRAME_COMP_DATA (&video_frame, 0); src_pic->pData[1] = GST_VIDEO_FRAME_COMP_DATA (&video_frame, 1); src_pic->pData[2] = GST_VIDEO_FRAME_COMP_DATA (&video_frame, 2); force_keyframe = GST_VIDEO_CODEC_FRAME_IS_FORCE_KEYFRAME (frame); if (force_keyframe) { openh264enc->priv->encoder->ForceIntraFrame (true); GST_DEBUG_OBJECT (openh264enc, "Got force key unit event, next frame coded as intra picture"); } } memset (&frame_info, 0, sizeof (SFrameBSInfo)); ret = openh264enc->priv->encoder->EncodeFrame (src_pic, &frame_info); if (ret != cmResultSuccess) { if (frame) { gst_video_frame_unmap (&video_frame); gst_video_codec_frame_unref (frame); delete src_pic; GST_ELEMENT_ERROR (openh264enc, STREAM, ENCODE, ("Could not encode frame"), ("Openh264 returned %d", ret)); return GST_FLOW_ERROR; } else { return GST_FLOW_EOS; } } if (videoFrameTypeSkip == frame_info.eFrameType) { if (frame) { gst_video_frame_unmap (&video_frame); gst_video_encoder_finish_frame (base_encoder, frame); delete src_pic; } return GST_FLOW_OK; } if (frame) { gst_video_frame_unmap (&video_frame); gst_video_codec_frame_unref (frame); delete src_pic; src_pic = NULL; frame = NULL; } /* FIXME: openh264 has no way for us to get a connection * between the input and output frames, we just have to * guess based on the input */ frame = gst_video_encoder_get_oldest_frame (base_encoder); if (!frame) { GST_ELEMENT_ERROR (openh264enc, STREAM, ENCODE, ("Could not encode frame"), ("openh264enc returned %d", ret)); gst_video_codec_frame_unref (frame); return GST_FLOW_ERROR; } SLayerBSInfo *bs_info = &frame_info.sLayerInfo[0]; gint nal_size = bs_info->pNalLengthInByte[0] - 4; guchar *nal_sps_data, *nal_pps_data; gint nal_sps_length, nal_pps_length, idr_length, tmp_buf_length; if (videoFrameTypeIDR == frame_info.eFrameType) { GstMapInfo map; /* sps */ nal_sps_data = frame_info.sLayerInfo[0].pBsBuf + 4; nal_sps_length = frame_info.sLayerInfo[0].pNalLengthInByte[0] - 4; /* pps */ nal_pps_data = nal_sps_data + frame_info.sLayerInfo[0].pNalLengthInByte[0]; nal_pps_length = frame_info.sLayerInfo[0].pNalLengthInByte[1] - 4; /* idr */ bs_info = &frame_info.sLayerInfo[1]; idr_length = bs_info->pNalLengthInByte[0] - 4; tmp_buf_length = nal_sps_length + 2 + nal_pps_length + 2 + idr_length + 2; frame->output_buffer = gst_video_encoder_allocate_output_buffer (encoder, tmp_buf_length); gst_buffer_map (frame->output_buffer, &map, GST_MAP_WRITE); GST_WRITE_UINT16_BE (map.data, nal_sps_length); memcpy (map.data + 2, nal_sps_data, nal_sps_length); GST_WRITE_UINT16_BE (map.data + nal_sps_length + 2, nal_pps_length); memcpy (map.data + nal_sps_length + 2 + 2, nal_pps_data, nal_pps_length); GST_WRITE_UINT16_BE (map.data + nal_sps_length + 2 + nal_pps_length + 2, idr_length); memcpy (map.data + nal_sps_length + 2 + nal_pps_length + 2 + 2, bs_info->pBsBuf + 4, idr_length); gst_buffer_unmap (frame->output_buffer, &map); GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (frame); } else { GstMapInfo map; tmp_buf_length = nal_size + 2; frame->output_buffer = gst_video_encoder_allocate_output_buffer (encoder, tmp_buf_length); gst_buffer_map (frame->output_buffer, &map, GST_MAP_WRITE); GST_WRITE_UINT16_BE (map.data, nal_size); memcpy (map.data + 2, bs_info->pBsBuf + 4, nal_size); gst_buffer_unmap (frame->output_buffer, &map); GST_VIDEO_CODEC_FRAME_UNSET_SYNC_POINT (frame); } GST_LOG_OBJECT (openh264enc, "openh264 picture %scoded OK!", (ret != cmResultSuccess) ? "NOT " : ""); return gst_video_encoder_finish_frame (encoder, frame); } static GstFlowReturn gst_openh264enc_finish (GstVideoEncoder * encoder) { GstOpenh264Enc *openh264enc = GST_OPENH264ENC (encoder); if (openh264enc->priv->frame_count == 0) return GST_FLOW_OK; /* Drain encoder */ while ((gst_openh264enc_handle_frame (encoder, NULL)) == GST_FLOW_OK); return GST_FLOW_OK; }