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gstreamer: Decide rate-control-mode based on the bitrate/cqp/crf settings

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And also keep the default encoder settings but simply override them with
our own values that we care about.

This mirrors the encoder configuration behaviour from ffmpeg.
This commit is contained in:
Sebastian Dröge 2023-02-02 10:34:40 +02:00
parent 70c83bc59c
commit 8aa376d541
2 changed files with 141 additions and 159 deletions
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286
subprojects/gst-plugins-bad/ext/svtav1/gstsvtav1enc.c
View file

@ -42,28 +42,6 @@ static GType gst_svtav1enc_intra_refresh_type_get_type(void) {
return intra_refresh_type;
}
#define GST_SVTAV1ENC_TYPE_RATE_CONTROL_MODE (gst_svtav1enc_rate_control_mode_get_type())
static GType gst_svtav1enc_rate_control_mode_get_type(void) {
static GType rate_control_mode_type = 0;
static const GEnumValue rate_control_mode[] = {
{SVT_AV1_RC_MODE_CQP_OR_CRF,
"Constant quantization parameter/constant rate factor",
"cqp-or-crf"},
{SVT_AV1_RC_MODE_VBR, "Variable bitrate", "vbr"},
{SVT_AV1_RC_MODE_CBR, "Constant bitrate", "cbr"},
{0, NULL, NULL},
};
if (!rate_control_mode_type) {
rate_control_mode_type = g_enum_register_static("GstSvtAv1EncRateControlMode",
rate_control_mode);
}
return rate_control_mode_type;
}
/* default configuration */
static EbSvtAv1EncConfiguration default_configuration;
/* prototypes */
static void gst_svtav1enc_set_property(GObject *object, guint property_id, const GValue *value,
GParamSpec *pspec);
@ -91,19 +69,18 @@ static GstFlowReturn gst_svtav1enc_finish(GstVideoEncoder *encoder);
static gboolean gst_svtav1enc_propose_allocation(GstVideoEncoder *encoder, GstQuery *query);
static gboolean gst_svtav1enc_flush(GstVideoEncoder *encoder);
static void gst_svtav1enc_parse_parameters_string(GstSvtAv1Enc *svtav1enc, const gchar *parameters);
static void gst_svtav1enc_parse_parameters_string(GstSvtAv1Enc *svtav1enc);
enum {
PROP_0,
PROP_PRESET,
PROP_RATE_CONTROL_MODE,
PROP_TARGET_BITRATE,
PROP_MAX_BITRATE,
PROP_MAX_QP_ALLOWED,
PROP_MIN_QP_ALLOWED,
PROP_QP,
PROP_CQP,
PROP_CRF,
PROP_MAXIMUM_BUFFER_SIZE,
PROP_ADAPTIVE_QUANTIZATION,
PROP_INTRA_PERIOD_LENGTH,
PROP_INTRA_REFRESH_TYPE,
PROP_LOGICAL_PROCESSORS,
@ -111,17 +88,16 @@ enum {
PROP_PARAMETERS_STRING,
};
#define PROP_PRESET_DEFAULT 8
#define PROP_RATE_CONTROL_MODE_DEFAULT SVT_AV1_RC_MODE_CQP_OR_CRF
#define PROP_TARGET_BITRATE_DEFAULT 2000
#define PROP_PRESET_DEFAULT 10
#define PROP_TARGET_BITRATE_DEFAULT 0
#define PROP_MAX_BITRATE_DEFAULT 0
#define PROP_QP_MAX_QP_ALLOWED_DEFAULT 63
#define PROP_QP_MIN_QP_ALLOWED_DEFAULT 0
#define PROP_QP_DEFAULT 50
#define PROP_QP_MIN_QP_ALLOWED_DEFAULT 1
#define PROP_CQP_DEFAULT -1
#define PROP_CRF_DEFAULT 35
#define PROP_MAXIMUM_BUFFER_SIZE_DEFAULT 1000
#define PROP_ADAPTIVE_QUANTIZATION_DEFAULT 2
#define PROP_INTRA_PERIOD_LENGTH_DEFAULT -2
#define PROP_INTRA_REFRESH_TYPE_DEFAULT 1
#define PROP_INTRA_REFRESH_TYPE_DEFAULT SVT_AV1_KF_REFRESH
#define PROP_LOGICAL_PROCESSORS_DEFAULT 0
#define PROP_TARGET_SOCKET_DEFAULT -1
#define PROP_PARAMETERS_STRING_DEFAULT NULL
@ -201,21 +177,12 @@ static void gst_svtav1enc_class_init(GstSvtAv1EncClass *klass) {
PROP_PRESET_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property(gobject_class,
PROP_RATE_CONTROL_MODE,
g_param_spec_enum("rate-control-mode",
"Rate-control mode",
"Rate Control Mode",
GST_SVTAV1ENC_TYPE_RATE_CONTROL_MODE,
PROP_RATE_CONTROL_MODE_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property(
gobject_class,
PROP_TARGET_BITRATE,
g_param_spec_uint("target-bitrate",
"Target bitrate",
"Target bitrate in kbits/sec. Only used when in CBR and VBR mode",
"Target bitrate in kbits/sec. Enables CBR or VBR mode",
0,
100000,
PROP_TARGET_BITRATE_DEFAULT,
@ -226,7 +193,8 @@ static void gst_svtav1enc_class_init(GstSvtAv1EncClass *klass) {
PROP_MAX_BITRATE,
g_param_spec_uint("max-bitrate",
"Maximum bitrate",
"Maximum bitrate in kbits/sec. Only used when in CBQ mode",
"Maximum bitrate in kbits/sec. Enables VBR mode if a different "
"target-bitrate is provided",
0,
100000,
PROP_MAX_BITRATE_DEFAULT,
@ -238,7 +206,7 @@ static void gst_svtav1enc_class_init(GstSvtAv1EncClass *klass) {
g_param_spec_uint("max-qp-allowed",
"Max Quantization parameter",
"Maximum QP value allowed for rate control use"
" Only used in VBR mode.",
" Only used in CBR and VBR mode.",
0,
63,
PROP_MAX_QP_ALLOWED,
@ -250,21 +218,33 @@ static void gst_svtav1enc_class_init(GstSvtAv1EncClass *klass) {
g_param_spec_uint("min-qp-allowed",
"Min Quantization parameter",
"Minimum QP value allowed for rate control use"
" Only used in VBR mode.",
" Only used in CBR and VBR mode.",
0,
63,
PROP_MIN_QP_ALLOWED,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property(gobject_class,
PROP_QP,
g_param_spec_uint("qp",
"Quantization parameter",
"Quantization parameter used in CQP mode",
0,
63,
PROP_QP_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property(
gobject_class,
PROP_CQP,
g_param_spec_int("cqp",
"Quantization parameter",
"Quantization parameter used in CQP mode (-1 is disabled)",
-1,
63,
PROP_CQP_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property(
gobject_class,
PROP_CRF,
g_param_spec_int("crf",
"Constant Rate Factor",
"Quantization parameter used in CRF mode (-1 is disabled)",
-1,
63,
PROP_CRF_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property(gobject_class,
PROP_MAXIMUM_BUFFER_SIZE,
@ -277,17 +257,6 @@ static void gst_svtav1enc_class_init(GstSvtAv1EncClass *klass) {
PROP_MAXIMUM_BUFFER_SIZE_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property(
gobject_class,
PROP_ADAPTIVE_QUANTIZATION,
g_param_spec_uint("adaptive-quantization",
"Adaptive Quantization",
"Adaptive quantization within a frame using segmentation.",
0,
2,
PROP_ADAPTIVE_QUANTIZATION_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property(
gobject_class,
PROP_INTRA_PERIOD_LENGTH,
@ -343,8 +312,20 @@ static void gst_svtav1enc_class_init(GstSvtAv1EncClass *klass) {
}
static void gst_svtav1enc_init(GstSvtAv1Enc *svtav1enc) {
svtav1enc->svt_config = g_new0(EbSvtAv1EncConfiguration, 1);
memcpy(svtav1enc->svt_config, &default_configuration, sizeof(default_configuration));
svtav1enc->svt_config = g_new0(EbSvtAv1EncConfiguration, 1);
svtav1enc->preset = PROP_PRESET_DEFAULT;
svtav1enc->target_bitrate = PROP_TARGET_BITRATE_DEFAULT;
svtav1enc->max_bitrate = PROP_MAX_BITRATE_DEFAULT;
svtav1enc->max_qp_allowed = PROP_QP_MAX_QP_ALLOWED_DEFAULT;
svtav1enc->min_qp_allowed = PROP_QP_MIN_QP_ALLOWED_DEFAULT;
svtav1enc->cqp = PROP_CQP_DEFAULT;
svtav1enc->crf = PROP_CRF_DEFAULT;
svtav1enc->maximum_buffer_size = PROP_MAXIMUM_BUFFER_SIZE_DEFAULT;
svtav1enc->intra_period_length = PROP_INTRA_PERIOD_LENGTH_DEFAULT;
svtav1enc->intra_refresh_type = PROP_INTRA_REFRESH_TYPE_DEFAULT;
svtav1enc->logical_processors = PROP_LOGICAL_PROCESSORS_DEFAULT;
svtav1enc->target_socket = PROP_TARGET_SOCKET_DEFAULT;
svtav1enc->parameters_string = PROP_PARAMETERS_STRING_DEFAULT;
}
static void gst_svtav1enc_set_property(GObject *object, guint property_id, const GValue *value,
@ -361,45 +342,23 @@ static void gst_svtav1enc_set_property(GObject *object, guint property_id, const
GST_LOG_OBJECT(svtav1enc, "setting property %u", property_id);
switch (property_id) {
case PROP_PRESET: svtav1enc->svt_config->enc_mode = g_value_get_uint(value); break;
case PROP_RATE_CONTROL_MODE:
svtav1enc->svt_config->rate_control_mode = g_value_get_enum(value);
// Forcing keyframes is only support in CQP/CRF mode
svtav1enc->svt_config->force_key_frames = (svtav1enc->svt_config->rate_control_mode ==
SVT_AV1_RC_MODE_CQP_OR_CRF);
break;
case PROP_TARGET_BITRATE:
svtav1enc->svt_config->target_bit_rate = g_value_get_uint(value) * 1000;
break;
case PROP_MAX_BITRATE:
svtav1enc->svt_config->max_bit_rate = g_value_get_uint(value) * 1000;
break;
case PROP_MAX_QP_ALLOWED:
svtav1enc->svt_config->max_qp_allowed = g_value_get_uint(value);
break;
case PROP_MIN_QP_ALLOWED:
svtav1enc->svt_config->min_qp_allowed = g_value_get_uint(value);
break;
case PROP_QP: svtav1enc->svt_config->qp = g_value_get_uint(value); break;
case PROP_MAXIMUM_BUFFER_SIZE:
svtav1enc->svt_config->maximum_buffer_size_ms = g_value_get_uint(value);
break;
case PROP_ADAPTIVE_QUANTIZATION:
svtav1enc->svt_config->enable_adaptive_quantization = g_value_get_uint(value);
break;
case PROP_INTRA_PERIOD_LENGTH:
svtav1enc->svt_config->intra_period_length = g_value_get_int(value) - 1;
break;
case PROP_INTRA_REFRESH_TYPE:
svtav1enc->svt_config->intra_refresh_type = g_value_get_enum(value);
break;
case PROP_LOGICAL_PROCESSORS:
svtav1enc->svt_config->logical_processors = g_value_get_uint(value);
break;
case PROP_TARGET_SOCKET: svtav1enc->svt_config->target_socket = g_value_get_int(value); break;
case PROP_PARAMETERS_STRING:
gst_svtav1enc_parse_parameters_string(svtav1enc, g_value_get_string(value));
case PROP_PRESET: svtav1enc->preset = g_value_get_uint(value); break;
case PROP_TARGET_BITRATE: svtav1enc->target_bitrate = g_value_get_uint(value) * 1000; break;
case PROP_MAX_BITRATE: svtav1enc->max_bitrate = g_value_get_uint(value) * 1000; break;
case PROP_MAX_QP_ALLOWED: svtav1enc->max_qp_allowed = g_value_get_uint(value); break;
case PROP_MIN_QP_ALLOWED: svtav1enc->min_qp_allowed = g_value_get_uint(value); break;
case PROP_CQP: svtav1enc->cqp = g_value_get_int(value); break;
case PROP_CRF: svtav1enc->crf = g_value_get_int(value); break;
case PROP_MAXIMUM_BUFFER_SIZE: svtav1enc->maximum_buffer_size = g_value_get_uint(value); break;
case PROP_INTRA_PERIOD_LENGTH: svtav1enc->intra_period_length = g_value_get_int(value); break;
case PROP_INTRA_REFRESH_TYPE: svtav1enc->intra_refresh_type = g_value_get_enum(value); break;
case PROP_LOGICAL_PROCESSORS: svtav1enc->logical_processors = g_value_get_uint(value); break;
case PROP_TARGET_SOCKET: svtav1enc->target_socket = g_value_get_int(value); break;
case PROP_PARAMETERS_STRING: {
g_free(svtav1enc->parameters_string);
svtav1enc->parameters_string = g_value_dup_string(value);
break;
}
default: G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec); break;
}
}
@ -411,35 +370,18 @@ static void gst_svtav1enc_get_property(GObject *object, guint property_id, GValu
GST_LOG_OBJECT(svtav1enc, "getting property %u", property_id);
switch (property_id) {
case PROP_PRESET: g_value_set_uint(value, svtav1enc->svt_config->enc_mode); break;
case PROP_RATE_CONTROL_MODE:
g_value_set_enum(value, svtav1enc->svt_config->rate_control_mode);
break;
case PROP_TARGET_BITRATE:
g_value_set_uint(value, svtav1enc->svt_config->target_bit_rate / 1000);
break;
case PROP_MAX_BITRATE:
g_value_set_uint(value, svtav1enc->svt_config->max_bit_rate / 1000);
break;
case PROP_MAX_QP_ALLOWED: g_value_set_uint(value, svtav1enc->svt_config->max_qp_allowed); break;
case PROP_MIN_QP_ALLOWED: g_value_set_uint(value, svtav1enc->svt_config->min_qp_allowed); break;
case PROP_QP: g_value_set_uint(value, svtav1enc->svt_config->qp); break;
case PROP_MAXIMUM_BUFFER_SIZE:
g_value_set_uint(value, svtav1enc->svt_config->maximum_buffer_size_ms);
break;
case PROP_ADAPTIVE_QUANTIZATION:
g_value_set_uint(value, svtav1enc->svt_config->enable_adaptive_quantization);
break;
case PROP_INTRA_PERIOD_LENGTH:
g_value_set_int(value, svtav1enc->svt_config->intra_period_length + 1);
break;
case PROP_INTRA_REFRESH_TYPE:
g_value_set_enum(value, svtav1enc->svt_config->intra_refresh_type);
break;
case PROP_LOGICAL_PROCESSORS:
g_value_set_uint(value, svtav1enc->svt_config->logical_processors);
break;
case PROP_TARGET_SOCKET: g_value_set_int(value, svtav1enc->svt_config->target_socket); break;
case PROP_PRESET: g_value_set_uint(value, svtav1enc->preset); break;
case PROP_TARGET_BITRATE: g_value_set_uint(value, svtav1enc->target_bitrate / 1000); break;
case PROP_MAX_BITRATE: g_value_set_uint(value, svtav1enc->max_bitrate / 1000); break;
case PROP_MAX_QP_ALLOWED: g_value_set_uint(value, svtav1enc->max_qp_allowed); break;
case PROP_MIN_QP_ALLOWED: g_value_set_uint(value, svtav1enc->min_qp_allowed); break;
case PROP_CQP: g_value_set_int(value, svtav1enc->cqp); break;
case PROP_CRF: g_value_set_int(value, svtav1enc->crf); break;
case PROP_MAXIMUM_BUFFER_SIZE: g_value_set_uint(value, svtav1enc->maximum_buffer_size); break;
case PROP_INTRA_PERIOD_LENGTH: g_value_set_int(value, svtav1enc->intra_period_length); break;
case PROP_INTRA_REFRESH_TYPE: g_value_set_enum(value, svtav1enc->intra_refresh_type); break;
case PROP_LOGICAL_PROCESSORS: g_value_set_uint(value, svtav1enc->logical_processors); break;
case PROP_TARGET_SOCKET: g_value_set_int(value, svtav1enc->target_socket); break;
case PROP_PARAMETERS_STRING: g_value_set_string(value, svtav1enc->parameters_string); break;
default: G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec); break;
}
@ -480,6 +422,50 @@ static gboolean gst_svtav1enc_configure_svt(GstSvtAv1Enc *svtav1enc) {
return FALSE;
}
/* set object properties */
svtav1enc->svt_config->enc_mode = svtav1enc->preset;
if (svtav1enc->target_bitrate != 0) {
svtav1enc->svt_config->target_bit_rate = svtav1enc->target_bitrate;
if (svtav1enc->target_bitrate != svtav1enc->max_bitrate) {
GST_DEBUG_OBJECT(svtav1enc,
"Enabling VBR mode (br %u max-br %u max-qp %u min-qp %u)",
svtav1enc->target_bitrate,
svtav1enc->max_bitrate,
svtav1enc->max_qp_allowed,
svtav1enc->min_qp_allowed);
svtav1enc->svt_config->max_bit_rate = svtav1enc->max_bitrate;
svtav1enc->svt_config->rate_control_mode = SVT_AV1_RC_MODE_VBR;
} else {
GST_DEBUG_OBJECT(svtav1enc,
"Enabling CBR mode (br %u max-bs %u)",
svtav1enc->target_bitrate,
svtav1enc->maximum_buffer_size);
svtav1enc->svt_config->rate_control_mode = SVT_AV1_RC_MODE_CBR;
svtav1enc->svt_config->maximum_buffer_size_ms = svtav1enc->maximum_buffer_size;
}
svtav1enc->svt_config->max_qp_allowed = svtav1enc->max_qp_allowed;
svtav1enc->svt_config->min_qp_allowed = svtav1enc->min_qp_allowed;
svtav1enc->svt_config->force_key_frames = FALSE;
} else if (svtav1enc->crf > 0) {
GST_DEBUG_OBJECT(svtav1enc, "Enabling CRF mode (qp %u)", svtav1enc->crf);
svtav1enc->svt_config->qp = svtav1enc->crf;
svtav1enc->svt_config->rate_control_mode = SVT_AV1_RC_MODE_CQP_OR_CRF;
svtav1enc->svt_config->force_key_frames = TRUE;
} else if (svtav1enc->cqp > 0) {
GST_DEBUG_OBJECT(svtav1enc, "Enabling CQP mode (qp %u)", svtav1enc->cqp);
svtav1enc->svt_config->qp = svtav1enc->cqp;
svtav1enc->svt_config->rate_control_mode = SVT_AV1_RC_MODE_CQP_OR_CRF;
svtav1enc->svt_config->enable_adaptive_quantization = FALSE;
svtav1enc->svt_config->force_key_frames = TRUE;
} else {
GST_DEBUG_OBJECT(svtav1enc, "Using default rate control settings");
}
svtav1enc->svt_config->intra_period_length = svtav1enc->intra_period_length;
svtav1enc->svt_config->intra_refresh_type = svtav1enc->intra_refresh_type;
svtav1enc->svt_config->logical_processors = svtav1enc->logical_processors;
svtav1enc->svt_config->target_socket = svtav1enc->target_socket;
gst_svtav1enc_parse_parameters_string(svtav1enc);
/* set properties out of GstVideoInfo */
const GstVideoInfo *info = &svtav1enc->state->info;
svtav1enc->svt_config->encoder_bit_depth = GST_VIDEO_INFO_COMP_DEPTH(info, 0);
@ -492,11 +478,11 @@ static gboolean gst_svtav1enc_configure_svt(GstSvtAv1Enc *svtav1enc) {
? GST_VIDEO_INFO_FPS_D(info)
: 1;
GST_LOG_OBJECT(svtav1enc,
"width %d, height %d, framerate %d",
"width %d, height %d, framerate %d/%d",
svtav1enc->svt_config->source_width,
svtav1enc->svt_config->source_height,
svtav1enc->svt_config->frame_rate_numerator /
svtav1enc->svt_config->frame_rate_denominator);
svtav1enc->svt_config->frame_rate_numerator,
svtav1enc->svt_config->frame_rate_denominator);
switch (GST_VIDEO_INFO_COLORIMETRY(info).primaries) {
case GST_VIDEO_COLOR_PRIMARIES_BT709:
@ -813,12 +799,10 @@ static GstFlowReturn gst_svtav1enc_dequeue_encoded_frames(GstSvtAv1Enc *svtav1en
static gboolean gst_svtav1enc_open(GstVideoEncoder *encoder) {
GstSvtAv1Enc *svtav1enc = GST_SVTAV1ENC(encoder);
/* don't overwrite the application's configuration */
EbSvtAv1EncConfiguration svt_config;
GST_DEBUG_OBJECT(svtav1enc, "open");
EbErrorType res = svt_av1_enc_init_handle(&svtav1enc->svt_encoder, NULL, &svt_config);
EbErrorType res = svt_av1_enc_init_handle(&svtav1enc->svt_encoder, NULL, svtav1enc->svt_config);
if (res != EB_ErrorNone) {
GST_ELEMENT_ERROR(svtav1enc,
LIBRARY,
@ -942,17 +926,13 @@ static gboolean gst_svtav1enc_propose_allocation(GstVideoEncoder *encoder, GstQu
return GST_VIDEO_ENCODER_CLASS(gst_svtav1enc_parent_class)->propose_allocation(encoder, query);
}
static void gst_svtav1enc_parse_parameters_string(GstSvtAv1Enc *svtav1enc,
const gchar *parameters) {
static void gst_svtav1enc_parse_parameters_string(GstSvtAv1Enc *svtav1enc) {
gchar **key_values, **p;
g_free(svtav1enc->parameters_string);
svtav1enc->parameters_string = g_strdup(parameters);
if (!parameters)
if (!svtav1enc->parameters_string)
return;
p = key_values = g_strsplit(parameters, ":", -1);
p = key_values = g_strsplit(svtav1enc->parameters_string, ":", -1);
while (p && *p) {
gchar *equals;
EbErrorType res;
@ -980,16 +960,6 @@ static void gst_svtav1enc_parse_parameters_string(GstSvtAv1Enc *svtav1enc,
}
static gboolean plugin_init(GstPlugin *plugin) {
EbComponentType *handle = NULL;
EbErrorType res;
res = svt_av1_enc_init_handle(&handle, NULL, &default_configuration);
if (res != EB_ErrorNone) {
GST_ERROR("Failed to initialize SVT AV1 handle");
return FALSE;
}
svt_av1_enc_deinit(handle);
return gst_element_register(plugin, "svtav1enc", GST_RANK_SECONDARY, GST_TYPE_SVTAV1ENC);
}

14
subprojects/gst-plugins-bad/ext/svtav1/gstsvtav1enc.h
View file

@ -33,7 +33,19 @@ typedef struct _GstSvtAv1Enc {
/* SVT-AV1 configuration */
EbSvtAv1EncConfiguration *svt_config;
gchar *parameters_string;
/* Property values */
guint preset;
guint target_bitrate;
guint max_bitrate;
guint max_qp_allowed;
guint min_qp_allowed;
gint cqp, crf;
guint maximum_buffer_size;
gint intra_period_length;
gint intra_refresh_type;
gint logical_processors;
gint target_socket;
gchar *parameters_string;
EbBufferHeaderType *input_buf;
} GstSvtAv1Enc;