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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-23 10:11:08 +00:00
nvenc: add some rate control modes/properties
Supported modes are constant quantizer, cbr, vbr and vbr with a minimum quantizer.
This commit is contained in:
Matthew Waters
parent
065f4dceb1
commit
dc1a326090
2 changed files with 148 additions and 1 deletions
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@ -99,6 +99,46 @@ _nv_preset_to_guid (GstNvPreset preset)
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}
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}
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#define GST_TYPE_NV_RC_MODE (gst_nv_rc_mode_get_type())
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static GType
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gst_nv_rc_mode_get_type (void)
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{
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static GType nv_rc_mode_type = 0;
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static const GEnumValue modes[] = {
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{GST_NV_RC_MODE_DEFAULT, "Default (from NVENC preset)", "default"},
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{GST_NV_RC_MODE_CONSTQP, "Constant Quantization", "constqp"},
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{GST_NV_RC_MODE_CBR, "Constant Bit Rate", "cbr"},
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{GST_NV_RC_MODE_VBR, "Variable Bit Rate", "vbr"},
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{GST_NV_RC_MODE_VBR_MINQP,
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"Variable Bit Rate (with minimum quantization parameter)",
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"vbr-minqp"},
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{0, NULL, NULL},
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};
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if (!nv_rc_mode_type) {
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nv_rc_mode_type = g_enum_register_static ("GstNvRCMode", modes);
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}
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return nv_rc_mode_type;
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}
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static NV_ENC_PARAMS_RC_MODE
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_rc_mode_to_nv (GstNvRCMode mode)
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{
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switch (mode) {
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case GST_NV_RC_MODE_DEFAULT:
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return -1;
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#define CASE(gst,nv) case G_PASTE(GST_NV_RC_MODE_,gst): return G_PASTE(NV_ENC_PARAMS_RC_,nv)
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CASE (CONSTQP, CONSTQP);
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CASE (CBR, CBR);
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CASE (VBR, VBR);
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CASE (VBR_MINQP, VBR_MINQP);
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#undef CASE
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default:
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return -1;
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}
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}
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static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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@ -121,9 +161,19 @@ enum
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PROP_0,
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PROP_DEVICE_ID,
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PROP_PRESET,
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PROP_BITRATE,
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PROP_RC_MODE,
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PROP_QP_MIN,
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PROP_QP_MAX,
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PROP_QP_CONST,
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};
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#define DEFAULT_PRESET GST_NV_PRESET_DEFAULT
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#define DEFAULT_BITRATE 0
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#define DEFAULT_RC_MODE GST_NV_RC_MODE_DEFAULT
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#define DEFAULT_QP_MIN -1
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#define DEFAULT_QP_MAX -1
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#define DEFAULT_QP_CONST -1
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/* This lock is needed to prevent the situation where multiple encoders are
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* initialised at the same time which appears to cause excessive CPU usage over
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@ -211,6 +261,28 @@ gst_nv_base_enc_class_init (GstNvBaseEncClass * klass)
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"Encoding Preset",
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GST_TYPE_NV_PRESET,
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DEFAULT_PRESET, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_RC_MODE,
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g_param_spec_enum ("rc-mode", "RC Mode",
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"Rate Control Mode",
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GST_TYPE_NV_RC_MODE,
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DEFAULT_RC_MODE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_QP_MIN,
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g_param_spec_int ("qp-min", "Minimum Quantizer",
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"Minimum quantizer (-1 = from NVENC preset)", -1, 51, DEFAULT_QP_MIN,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_QP_MAX,
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g_param_spec_int ("qp-max", "Maximum Quantizer",
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"Maximum quantizer (-1 = from NVENC preset)", -1, 51, DEFAULT_QP_MAX,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_QP_CONST,
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g_param_spec_int ("qp-const", "Constant Quantizer",
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"Constant quantizer (-1 = from NVENC preset)",
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-1, 51, DEFAULT_QP_CONST,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_BITRATE,
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g_param_spec_uint ("bitrate", "Bitrate",
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"Bitrate in kbit/sec (0 = from NVENC preset)", 0, 2000 * 1024,
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DEFAULT_BITRATE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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}
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static gboolean
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@ -576,6 +648,11 @@ gst_nv_base_enc_init (GstNvBaseEnc * nvenc)
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nvenc->preset_enum = DEFAULT_PRESET;
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nvenc->selected_preset = _nv_preset_to_guid (nvenc->preset_enum);
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nvenc->rate_control_mode = DEFAULT_RC_MODE;
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nvenc->qp_min = DEFAULT_QP_MIN;
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nvenc->qp_max = DEFAULT_QP_MAX;
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nvenc->qp_const = DEFAULT_QP_CONST;
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nvenc->bitrate = DEFAULT_BITRATE;
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GST_VIDEO_ENCODER_STREAM_LOCK (encoder);
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GST_VIDEO_ENCODER_STREAM_UNLOCK (encoder);
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@ -1060,6 +1137,8 @@ gst_nv_base_enc_set_format (GstVideoEncoder * enc, GstVideoCodecState * state)
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return FALSE;
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}
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params->encodeConfig = &preset_config.presetCfg;
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if (GST_VIDEO_INFO_IS_INTERLACED (info)) {
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if (GST_VIDEO_INFO_INTERLACE_MODE (info) ==
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GST_VIDEO_INTERLACE_MODE_INTERLEAVED
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@ -1077,7 +1156,32 @@ gst_nv_base_enc_set_format (GstVideoEncoder * enc, GstVideoCodecState * state)
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GST_FIXME_OBJECT (nvenc, "variable framerate");
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}
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params->encodeConfig = &preset_config.presetCfg;
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if (nvenc->rate_control_mode != GST_NV_RC_MODE_DEFAULT) {
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params->encodeConfig->rcParams.rateControlMode =
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_rc_mode_to_nv (nvenc->rate_control_mode);
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if (nvenc->bitrate > 0) {
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/* FIXME: this produces larger bitrates?! */
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params->encodeConfig->rcParams.averageBitRate = nvenc->bitrate * 1024;
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params->encodeConfig->rcParams.maxBitRate = nvenc->bitrate * 1024;
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}
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if (nvenc->qp_const > 0) {
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params->encodeConfig->rcParams.constQP.qpInterB = nvenc->qp_const;
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params->encodeConfig->rcParams.constQP.qpInterP = nvenc->qp_const;
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params->encodeConfig->rcParams.constQP.qpIntra = nvenc->qp_const;
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}
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if (nvenc->qp_min >= 0) {
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params->encodeConfig->rcParams.enableMinQP = 1;
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params->encodeConfig->rcParams.minQP.qpInterB = nvenc->qp_min;
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params->encodeConfig->rcParams.minQP.qpInterP = nvenc->qp_min;
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params->encodeConfig->rcParams.minQP.qpIntra = nvenc->qp_min;
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}
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if (nvenc->qp_max >= 0) {
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params->encodeConfig->rcParams.enableMaxQP = 1;
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params->encodeConfig->rcParams.maxQP.qpInterB = nvenc->qp_max;
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params->encodeConfig->rcParams.maxQP.qpInterP = nvenc->qp_max;
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params->encodeConfig->rcParams.maxQP.qpIntra = nvenc->qp_max;
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}
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}
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g_assert (nvenc_class->set_encoder_config);
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if (!nvenc_class->set_encoder_config (nvenc, state, params->encodeConfig)) {
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@ -1767,6 +1871,21 @@ gst_nv_base_enc_set_property (GObject * object, guint prop_id,
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nvenc->preset_enum = g_value_get_enum (value);
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nvenc->selected_preset = _nv_preset_to_guid (nvenc->preset_enum);
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break;
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case PROP_RC_MODE:
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nvenc->rate_control_mode = g_value_get_enum (value);
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break;
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case PROP_QP_MIN:
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nvenc->qp_min = g_value_get_int (value);
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break;
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case PROP_QP_MAX:
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nvenc->qp_max = g_value_get_int (value);
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break;
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case PROP_QP_CONST:
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nvenc->qp_const = g_value_get_int (value);
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break;
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case PROP_BITRATE:
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nvenc->bitrate = g_value_get_uint (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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@ -1786,6 +1905,21 @@ gst_nv_base_enc_get_property (GObject * object, guint prop_id, GValue * value,
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case PROP_PRESET:
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g_value_set_enum (value, nvenc->preset_enum);
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break;
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case PROP_RC_MODE:
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g_value_set_enum (value, nvenc->rate_control_mode);
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break;
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case PROP_QP_MIN:
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g_value_set_int (value, nvenc->qp_min);
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break;
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case PROP_QP_MAX:
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g_value_set_int (value, nvenc->qp_max);
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break;
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case PROP_QP_CONST:
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g_value_set_int (value, nvenc->qp_const);
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break;
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case PROP_BITRATE:
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g_value_set_uint (value, nvenc->bitrate);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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@ -49,6 +49,14 @@ typedef enum {
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GST_NV_PRESET_LOSSLESS_HP,
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} GstNvPreset;
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typedef enum {
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GST_NV_RC_MODE_DEFAULT,
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GST_NV_RC_MODE_CONSTQP,
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GST_NV_RC_MODE_CBR,
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GST_NV_RC_MODE_VBR,
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GST_NV_RC_MODE_VBR_MINQP,
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} GstNvRCMode;
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typedef struct {
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GstVideoEncoder video_encoder;
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@ -56,6 +64,11 @@ typedef struct {
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guint cuda_device_id;
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GstNvPreset preset_enum;
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GUID selected_preset;
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GstNvRCMode rate_control_mode;
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gint qp_min;
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gint qp_max;
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gint qp_const;
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guint bitrate;
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CUcontext cuda_ctx;
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void * encoder;
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