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vtenc: add quality property

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This commit is contained in:
Alessandro Decina 2014-11-27 13:40:56 +01:00
parent 6a4270d5cc
commit d25813c9bc
2 changed files with 49 additions and 7 deletions
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55
sys/applemedia/vtenc.c
View file

@ -32,6 +32,7 @@
#define VTENC_DEFAULT_BITRATE 0
#define VTENC_DEFAULT_FRAME_REORDERING TRUE
#define VTENC_DEFAULT_REALTIME FALSE
#define VTENC_DEFAULT_QUALITY 0.5
GST_DEBUG_CATEGORY (gst_vtenc_debug);
#define GST_CAT_DEFAULT (gst_vtenc_debug)
@ -50,13 +51,18 @@ const CFStringRef kVTProfileLevel_H264_Baseline_AutoLevel =
CFSTR ("H264_Baseline_AutoLevel");
#endif
#if defined(MAC_OS_X_VERSION_MAX_ALLOWED) && MAC_OS_X_VERSION_MAX_ALLOWED < 1080
const CFStringRef kVTCompressionPropertyKey_Quality = CFSTR ("Quality");
#endif
enum
{
PROP_0,
PROP_USAGE,
PROP_BITRATE,
PROP_ALLOW_FRAME_REORDERING,
PROP_REALTIME
PROP_REALTIME,
PROP_QUALITY
};
typedef struct _GstVTEncFrame GstVTEncFrame;
@ -207,6 +213,12 @@ gst_vtenc_class_init (GstVTEncClass * klass)
"Configure the encoder for realtime output",
VTENC_DEFAULT_REALTIME,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_QUALITY,
g_param_spec_double ("quality", "Quality",
"The desired compression quality",
0.0, 1.0, VTENC_DEFAULT_QUALITY,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
}
static void
@ -295,6 +307,30 @@ gst_vtenc_set_realtime (GstVTEnc * self, gboolean realtime)
GST_OBJECT_UNLOCK (self);
}
static gdouble
gst_vtenc_get_quality (GstVTEnc * self)
{
gdouble result;
GST_OBJECT_LOCK (self);
result = self->quality;
GST_OBJECT_UNLOCK (self);
return result;
}
static void
gst_vtenc_set_quality (GstVTEnc * self, gdouble quality)
{
GST_OBJECT_LOCK (self);
self->quality = quality;
if (self->session != NULL) {
gst_vtenc_session_configure_property_double (self, self->session,
kVTCompressionPropertyKey_Quality, quality);
}
GST_OBJECT_UNLOCK (self);
}
static void
gst_vtenc_get_property (GObject * obj, guint prop_id, GValue * value,
GParamSpec * pspec)
@ -311,6 +347,9 @@ gst_vtenc_get_property (GObject * obj, guint prop_id, GValue * value,
case PROP_REALTIME:
g_value_set_boolean (value, gst_vtenc_get_realtime (self));
break;
case PROP_QUALITY:
g_value_set_double (value, gst_vtenc_get_quality (self));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (obj, prop_id, pspec);
break;
@ -333,6 +372,9 @@ gst_vtenc_set_property (GObject * obj, guint prop_id, const GValue * value,
case PROP_REALTIME:
gst_vtenc_set_realtime (self, g_value_get_boolean (value));
break;
case PROP_QUALITY:
gst_vtenc_set_quality (self, g_value_get_double (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (obj, prop_id, pspec);
break;
@ -568,12 +610,6 @@ gst_vtenc_create_session (GstVTEnc * self)
goto beach;
}
if (self->dump_properties) {
gst_vtenc_session_dump_properties (self, session);
self->dump_properties = FALSE;
}
gst_vtenc_session_configure_expected_framerate (self, session,
(gdouble) self->negotiated_fps_n / (gdouble) self->negotiated_fps_d);
@ -597,7 +633,12 @@ gst_vtenc_create_session (GstVTEnc * self)
gst_vtenc_get_realtime (self));
gst_vtenc_session_configure_allow_frame_reordering (self, session,
gst_vtenc_get_allow_frame_reordering (self));
gst_vtenc_set_quality (self, self->quality);
if (self->dump_properties) {
gst_vtenc_session_dump_properties (self, session);
self->dump_properties = FALSE;
}
#ifdef HAVE_VIDEOTOOLBOX_10_9_6
if (VTCompressionSessionPrepareToEncodeFrames) {
status = VTCompressionSessionPrepareToEncodeFrames (session);

1
sys/applemedia/vtenc.h
View file

@ -60,6 +60,7 @@ struct _GstVTEnc
guint bitrate;
gboolean allow_frame_reordering;
gboolean realtime;
gdouble quality;
gboolean dump_properties;
gboolean dump_attributes;