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theoradec: add properties to enable debugging telemetry overlay

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The theora decoder can overlay debugging information on the output
video. This functionality is only available if libtheora has been
compiled with --enable-telemetry. For more details see:

http://people.xiph.org/~xiphmont/demo/theora/demo2.html

Based on original patch by Michael Smith <msmith at xiph org>

https://bugzilla.gnome.org/show_bug.cgi?id=628488
This commit is contained in:
Alexey Fisher 2010-10-09 23:49:35 +01:00 committed by Tim-Philipp Müller
parent 96006aded8
commit ab52e15e3d
2 changed files with 89 additions and 1 deletions
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84
ext/theora/gsttheoradec.c
View file

@ -49,10 +49,19 @@
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
#define THEORA_DEF_CROP TRUE
#define THEORA_DEF_TELEMETRY_MV 0
#define THEORA_DEF_TELEMETRY_MBMODE 0
#define THEORA_DEF_TELEMETRY_QI 0
#define THEORA_DEF_TELEMETRY_BITS 0
enum
{
PROP_0,
PROP_CROP
PROP_CROP,
PROP_TELEMETRY_MV,
PROP_TELEMETRY_MBMODE,
PROP_TELEMETRY_QI,
PROP_TELEMETRY_BITS
};
static GstStaticPadTemplate theora_dec_src_factory =
@ -128,6 +137,35 @@ gst_theora_dec_class_init (GstTheoraDecClass * klass)
"Crop the image to the visible region", THEORA_DEF_CROP,
(GParamFlags) G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_TELEMETRY_MV,
g_param_spec_int ("vis-mv", "Visualise motion vectors",
"Show motion vector selection overlaid on image. "
"Value gives a mask for MV modes to show.",
0, 0xffff, THEORA_DEF_TELEMETRY_MV, (GParamFlags) G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, PROP_TELEMETRY_MBMODE,
g_param_spec_int ("vis-mbmode",
"Visualise macroblock modes",
"Show macroblock mode selection overlaid on image. "
"Value gives a mask for MB modes to show.",
0, 0xffff, THEORA_DEF_TELEMETRY_MBMODE,
(GParamFlags) G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, PROP_TELEMETRY_QI,
g_param_spec_int ("vis-qi",
"Visualise adaptive quantization modes",
"Show adaptive quantization mode selection overlaid on image. "
"Value gives a mask for QI modes to show.",
0, 0xffff, THEORA_DEF_TELEMETRY_QI, (GParamFlags) G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, PROP_TELEMETRY_BITS,
g_param_spec_int ("vis-bits",
"Visualise bitstream breakdown modes",
"Show bitstream breakdown mode selection overlaid on image. "
"Value gives a mask for BITS modes to show.",
0, 0xffff, THEORA_DEF_TELEMETRY_BITS,
(GParamFlags) G_PARAM_READWRITE));
gstelement_class->change_state = theora_dec_change_state;
GST_DEBUG_CATEGORY_INIT (theoradec_debug, "theoradec", 0, "Theora decoder");
@ -153,6 +191,10 @@ gst_theora_dec_init (GstTheoraDec * dec, GstTheoraDecClass * g_class)
gst_element_add_pad (GST_ELEMENT (dec), dec->srcpad);
dec->crop = THEORA_DEF_CROP;
dec->telemetry_mv = THEORA_DEF_TELEMETRY_MV;
dec->telemetry_mbmode = THEORA_DEF_TELEMETRY_MBMODE;
dec->telemetry_qi = THEORA_DEF_TELEMETRY_QI;
dec->telemetry_bits = THEORA_DEF_TELEMETRY_BITS;
dec->gather = NULL;
dec->decode = NULL;
dec->queued = NULL;
@ -826,6 +868,22 @@ theora_handle_type_packet (GstTheoraDec * dec, ogg_packet * packet)
/* done */
dec->decoder = th_decode_alloc (&dec->info, dec->setup);
if (th_decode_ctl (dec->decoder, TH_DECCTL_SET_TELEMETRY_MV,
&dec->telemetry_mv, sizeof (dec->telemetry_mv)))
GST_WARNING_OBJECT (dec, "Could not enable MV visualisation");
if (th_decode_ctl (dec->decoder, TH_DECCTL_SET_TELEMETRY_MBMODE,
&dec->telemetry_mbmode, sizeof (dec->telemetry_mbmode)))
GST_WARNING_OBJECT (dec, "Could not enable MB mode visualisation");
if (th_decode_ctl (dec->decoder, TH_DECCTL_SET_TELEMETRY_QI,
&dec->telemetry_qi, sizeof (dec->telemetry_qi)))
GST_WARNING_OBJECT (dec, "Could not enable QI mode visualisation");
if (th_decode_ctl (dec->decoder, TH_DECCTL_SET_TELEMETRY_BITS,
&dec->telemetry_bits, sizeof (dec->telemetry_bits)))
GST_WARNING_OBJECT (dec, "Could not enable BITS mode visualisation");
caps = gst_caps_new_simple ("video/x-raw-yuv",
"format", GST_TYPE_FOURCC, fourcc,
"framerate", GST_TYPE_FRACTION,
@ -1473,6 +1531,18 @@ theora_dec_set_property (GObject * object, guint prop_id,
case PROP_CROP:
dec->crop = g_value_get_boolean (value);
break;
case PROP_TELEMETRY_MV:
dec->telemetry_mv = g_value_get_int (value);
break;
case PROP_TELEMETRY_MBMODE:
dec->telemetry_mbmode = g_value_get_int (value);
break;
case PROP_TELEMETRY_QI:
dec->telemetry_qi = g_value_get_int (value);
break;
case PROP_TELEMETRY_BITS:
dec->telemetry_bits = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -1489,6 +1559,18 @@ theora_dec_get_property (GObject * object, guint prop_id,
case PROP_CROP:
g_value_set_boolean (value, dec->crop);
break;
case PROP_TELEMETRY_MV:
g_value_set_int (value, dec->telemetry_mv);
break;
case PROP_TELEMETRY_MBMODE:
g_value_set_int (value, dec->telemetry_mbmode);
break;
case PROP_TELEMETRY_QI:
g_value_set_int (value, dec->telemetry_qi);
break;
case PROP_TELEMETRY_BITS:
g_value_set_int (value, dec->telemetry_bits);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;

6
ext/theora/gsttheoradec.h
View file

@ -73,6 +73,12 @@ struct _GstTheoraDec
gint offset_x, offset_y;
gint output_bpp;
/* telemetry debuging options */
gint telemetry_mv;
gint telemetry_mbmode;
gint telemetry_qi;
gint telemetry_bits;
gboolean crop;
/* list of buffers that need timestamps */