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omxvideoenc: Add support for setting bitrate/quantization related parameters

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This commit is contained in:
Sebastian Dröge 2011-07-28 11:54:16 +02:00
parent f2b456e2e6
commit e7b421c131
2 changed files with 199 additions and 1 deletions
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193
omx/gstomxvideoenc.c
View file

@ -30,6 +30,29 @@
GST_DEBUG_CATEGORY_STATIC (gst_omx_video_enc_debug_category);
#define GST_CAT_DEFAULT gst_omx_video_enc_debug_category
#define GST_TYPE_OMX_VIDEO_ENC_CONTROL_RATE (gst_omx_video_enc_control_rate_get_type ())
static GType
gst_omx_video_enc_control_rate_get_type (void)
{
static GType qtype = 0;
if (qtype == 0) {
static const GEnumValue values[] = {
{OMX_Video_ControlRateDisable, "Disable", "disable"},
{OMX_Video_ControlRateVariable, "Variable", "variable"},
{OMX_Video_ControlRateConstant, "Constant", "constant"},
{OMX_Video_ControlRateVariableSkipFrames, "Variable Skip Frames",
"variable-skip-frames"},
{OMX_Video_ControlRateConstantSkipFrames, "Constant Skip Frames",
"constant-skip-frames"},
{0, NULL, NULL}
};
qtype = g_enum_register_static ("GstOMXVideoEncControlRate", values);
}
return qtype;
}
typedef struct _BufferIdentification BufferIdentification;
struct _BufferIdentification
{
@ -44,6 +67,11 @@ buffer_identification_free (BufferIdentification * id)
/* prototypes */
static void gst_omx_video_enc_finalize (GObject * object);
static void gst_omx_video_enc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_omx_video_enc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstStateChangeReturn
gst_omx_video_enc_change_state (GstElement * element,
@ -60,9 +88,21 @@ static gboolean gst_omx_video_enc_finish (GstBaseVideoEncoder * encoder);
enum
{
PROP_0
PROP_0,
PROP_CONTROL_RATE,
PROP_TARGET_BITRATE,
PROP_QUANT_I_FRAMES,
PROP_QUANT_P_FRAMES,
PROP_QUANT_B_FRAMES
};
/* FIXME: Better defaults */
#define GST_OMX_VIDEO_ENC_CONTROL_RATE_DEFAULT (OMX_Video_ControlRateConstant)
#define GST_OMX_VIDEO_ENC_TARGET_BITRATE_DEFAULT (64000)
#define GST_OMX_VIDEO_ENC_QUANT_I_FRAMES_DEFAULT (9)
#define GST_OMX_VIDEO_ENC_QUANT_P_FRAMES_DEFAULT (6)
#define GST_OMX_VIDEO_ENC_QUANT_B_FRAMES_DEFAULT (2)
/* class initialization */
#define DEBUG_INIT(bla) \
@ -216,6 +256,44 @@ gst_omx_video_enc_class_init (GstOMXVideoEncClass * klass)
GST_BASE_VIDEO_ENCODER_CLASS (klass);
gobject_class->finalize = gst_omx_video_enc_finalize;
gobject_class->set_property = gst_omx_video_enc_set_property;
gobject_class->get_property = gst_omx_video_enc_get_property;
g_object_class_install_property (gobject_class, PROP_CONTROL_RATE,
g_param_spec_enum ("control-rate", "Control Rate",
"Bitrate control method",
GST_TYPE_OMX_VIDEO_ENC_CONTROL_RATE,
GST_OMX_VIDEO_ENC_CONTROL_RATE_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
GST_PARAM_MUTABLE_READY));
g_object_class_install_property (gobject_class, PROP_TARGET_BITRATE,
g_param_spec_uint ("target-bitrate", "Target Bitrate",
"Target bitrate",
0, G_MAXUINT, GST_OMX_VIDEO_ENC_TARGET_BITRATE_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
GST_PARAM_MUTABLE_PLAYING));
g_object_class_install_property (gobject_class, PROP_QUANT_I_FRAMES,
g_param_spec_uint ("quant-i-frames", "I-Frame Quantization",
"Quantization parameter for I-frames",
0, G_MAXUINT, GST_OMX_VIDEO_ENC_QUANT_I_FRAMES_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
GST_PARAM_MUTABLE_READY));
g_object_class_install_property (gobject_class, PROP_QUANT_P_FRAMES,
g_param_spec_uint ("quant-p-frames", "P-Frame Quantization",
"Quantization parameter for P-frames",
0, G_MAXUINT, GST_OMX_VIDEO_ENC_QUANT_P_FRAMES_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
GST_PARAM_MUTABLE_READY));
g_object_class_install_property (gobject_class, PROP_QUANT_B_FRAMES,
g_param_spec_uint ("quant-b-frames", "B-Frame Quantization",
"Quantization parameter for B-frames",
0, G_MAXUINT, GST_OMX_VIDEO_ENC_QUANT_B_FRAMES_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
GST_PARAM_MUTABLE_READY));
element_class->change_state =
GST_DEBUG_FUNCPTR (gst_omx_video_enc_change_state);
@ -234,6 +312,11 @@ gst_omx_video_enc_class_init (GstOMXVideoEncClass * klass)
static void
gst_omx_video_enc_init (GstOMXVideoEnc * self, GstOMXVideoEncClass * klass)
{
self->control_rate = GST_OMX_VIDEO_ENC_CONTROL_RATE_DEFAULT;
self->target_bitrate = GST_OMX_VIDEO_ENC_TARGET_BITRATE_DEFAULT;
self->quant_i_frames = GST_OMX_VIDEO_ENC_QUANT_I_FRAMES_DEFAULT;
self->quant_p_frames = GST_OMX_VIDEO_ENC_QUANT_P_FRAMES_DEFAULT;
self->quant_b_frames = GST_OMX_VIDEO_ENC_QUANT_B_FRAMES_DEFAULT;
}
static gboolean
@ -261,6 +344,43 @@ gst_omx_video_enc_open (GstOMXVideoEnc * self)
if (!self->in_port || !self->out_port)
return FALSE;
/* Set properties */
{
OMX_VIDEO_PARAM_BITRATETYPE bitrate_param;
OMX_VIDEO_PARAM_QUANTIZATIONTYPE quant_param;
OMX_ERRORTYPE err;
GST_OMX_INIT_STRUCT (&bitrate_param);
bitrate_param.nPortIndex = self->out_port->index;
bitrate_param.eControlRate = self->control_rate;
bitrate_param.nTargetBitrate = self->target_bitrate;
err =
gst_omx_component_set_parameter (self->component,
OMX_IndexParamVideoBitrate, &bitrate_param);
if (err != OMX_ErrorNone) {
GST_ERROR_OBJECT (self, "Failed to set bitrate parameters: %s (0x%08x)",
gst_omx_error_to_string (err), err);
return FALSE;
}
GST_OMX_INIT_STRUCT (&quant_param);
quant_param.nPortIndex = self->out_port->index;
quant_param.nQpI = self->quant_i_frames;
quant_param.nQpP = self->quant_p_frames;
quant_param.nQpB = self->quant_b_frames;
err =
gst_omx_component_set_parameter (self->component,
OMX_IndexParamVideoQuantization, &quant_param);
if (err != OMX_ErrorNone) {
GST_ERROR_OBJECT (self,
"Failed to set quantization parameters: %s (0x%08x)",
gst_omx_error_to_string (err), err);
return FALSE;
}
}
return TRUE;
}
@ -296,6 +416,77 @@ gst_omx_video_enc_finalize (GObject * object)
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_omx_video_enc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstOMXVideoEnc *self = GST_OMX_VIDEO_ENC (object);
switch (prop_id) {
case PROP_CONTROL_RATE:
self->control_rate = g_value_get_enum (value);
break;
case PROP_TARGET_BITRATE:
self->target_bitrate = g_value_get_uint (value);
if (self->component) {
OMX_VIDEO_CONFIG_BITRATETYPE config;
OMX_ERRORTYPE err;
GST_OMX_INIT_STRUCT (&config);
config.nPortIndex = self->out_port->index;
config.nEncodeBitrate = self->target_bitrate;
err =
gst_omx_component_set_config (self->component,
OMX_IndexConfigVideoBitrate, &config);
if (err != OMX_ErrorNone)
GST_ERROR_OBJECT (self,
"Failed to set bitrate parameter: %s (0x%08x)",
gst_omx_error_to_string (err), err);
}
break;
case PROP_QUANT_I_FRAMES:
self->quant_i_frames = g_value_get_uint (value);
break;
case PROP_QUANT_P_FRAMES:
self->quant_p_frames = g_value_get_uint (value);
break;
case PROP_QUANT_B_FRAMES:
self->quant_b_frames = g_value_get_uint (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_omx_video_enc_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstOMXVideoEnc *self = GST_OMX_VIDEO_ENC (object);
switch (prop_id) {
case PROP_CONTROL_RATE:
g_value_set_enum (value, self->control_rate);
break;
case PROP_TARGET_BITRATE:
g_value_set_uint (value, self->target_bitrate);
break;
case PROP_QUANT_I_FRAMES:
g_value_set_uint (value, self->quant_i_frames);
break;
case PROP_QUANT_P_FRAMES:
g_value_set_uint (value, self->quant_p_frames);
break;
case PROP_QUANT_B_FRAMES:
g_value_set_uint (value, self->quant_b_frames);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstStateChangeReturn
gst_omx_video_enc_change_state (GstElement * element, GstStateChange transition)
{

7
omx/gstomxvideoenc.h
View file

@ -57,6 +57,13 @@ struct _GstOMXVideoEnc
/* TRUE if the component is configured and saw
* the first buffer */
gboolean started;
/* properties */
OMX_VIDEO_CONTROLRATETYPE control_rate;
guint32 target_bitrate;
guint32 quant_i_frames;
guint32 quant_p_frames;
guint32 quant_b_frames;
};
struct _GstOMXVideoEncClass