mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2025-03-30 12:49:40 +00:00
ext/dv/gstdvdec.*: Implement drop_factor property to lower the framerate with a factor.
Original commit message from CVS: * ext/dv/gstdvdec.c: (gst_dvdec_class_init), (gst_dvdec_init), (gst_dvdec_video_getcaps), (gst_dvdec_video_link), (gst_dvdec_push), (gst_dvdec_loop), (gst_dvdec_change_state), (gst_dvdec_set_property), (gst_dvdec_get_property): * ext/dv/gstdvdec.h: Implement drop_factor property to lower the framerate with a factor.
This commit is contained in:
Wim Taymans
parent
85a72aa832
commit
e5bb1f1376
3 changed files with 57 additions and 21 deletions
10
ChangeLog
10
ChangeLog
|
|
@ -1,3 +1,13 @@
|
|||
2004-06-27 Wim Taymans <wim@fluendo.com>
|
||||
|
||||
* ext/dv/gstdvdec.c: (gst_dvdec_class_init), (gst_dvdec_init),
|
||||
(gst_dvdec_video_getcaps), (gst_dvdec_video_link),
|
||||
(gst_dvdec_push), (gst_dvdec_loop), (gst_dvdec_change_state),
|
||||
(gst_dvdec_set_property), (gst_dvdec_get_property):
|
||||
* ext/dv/gstdvdec.h:
|
||||
Implement drop_factor property to lower the framerate with
|
||||
a factor.
|
||||
|
||||
2004-06-27 Thomas Vander Stichele <thomas at apestaart dot org>
|
||||
|
||||
* gst-libs/gst/colorbalance/Makefile.am:
|
||||
|
|
|
|||
|
|
@ -55,6 +55,9 @@ enum
|
|||
LAST_SIGNAL
|
||||
};
|
||||
|
||||
#define DV_DEFAULT_QUALITY DV_QUALITY_BEST
|
||||
#define DV_DEFAULT_DECODE_NTH 1
|
||||
|
||||
/* Arguments are identified the same way, but cannot be zero, so you
|
||||
* must leave the ARG_0 entry in as a placeholder.
|
||||
*/
|
||||
|
|
@ -63,7 +66,8 @@ enum
|
|||
ARG_0,
|
||||
ARG_CLAMP_LUMA,
|
||||
ARG_CLAMP_CHROMA,
|
||||
ARG_QUALITY
|
||||
ARG_QUALITY,
|
||||
ARG_DECODE_NTH
|
||||
/* FILL ME */
|
||||
};
|
||||
|
||||
|
|
@ -76,8 +80,6 @@ const gint qualities[] = {
|
|||
DV_QUALITY_AC_2 | DV_QUALITY_COLOR
|
||||
};
|
||||
|
||||
#define DV_QUALITY_DEFAULT 5
|
||||
|
||||
/* The PadFactory structures describe what pads the element has or
|
||||
* can have. They can be quite complex, but for this dvdec plugin
|
||||
* they are rather simple.
|
||||
|
|
@ -96,10 +98,10 @@ static GstStaticPadTemplate video_src_temp = GST_STATIC_PAD_TEMPLATE ("video",
|
|||
"width = (int) 720, "
|
||||
"height = (int) { "
|
||||
G_STRINGIFY (NTSC_HEIGHT) ", " G_STRINGIFY (PAL_HEIGHT)
|
||||
" }, "
|
||||
"framerate = (double) { "
|
||||
G_STRINGIFY (PAL_FRAMERATE) ", " G_STRINGIFY (NTSC_FRAMERATE)
|
||||
" }; "
|
||||
" }, " "framerate = (double) [ 1.0, 60.0 ];"
|
||||
//"framerate = (double) { "
|
||||
//G_STRINGIFY (PAL_FRAMERATE) ", " G_STRINGIFY (NTSC_FRAMERATE)
|
||||
//" }; "
|
||||
"video/x-raw-rgb, "
|
||||
"bpp = (int) 32, "
|
||||
"depth = (int) 32, "
|
||||
|
|
@ -110,10 +112,10 @@ static GstStaticPadTemplate video_src_temp = GST_STATIC_PAD_TEMPLATE ("video",
|
|||
"width = (int) 720, "
|
||||
"height = (int) { "
|
||||
G_STRINGIFY (NTSC_HEIGHT) ", " G_STRINGIFY (PAL_HEIGHT)
|
||||
" }, "
|
||||
"framerate = (double) { "
|
||||
G_STRINGIFY (PAL_FRAMERATE) ", " G_STRINGIFY (NTSC_FRAMERATE)
|
||||
" }; "
|
||||
" }, " "framerate = (double) [ 1.0, 60.0 ];"
|
||||
//"framerate = (double) { "
|
||||
//G_STRINGIFY (PAL_FRAMERATE) ", " G_STRINGIFY (NTSC_FRAMERATE)
|
||||
//" }; "
|
||||
"video/x-raw-rgb, "
|
||||
"bpp = (int) 24, "
|
||||
"depth = (int) 24, "
|
||||
|
|
@ -124,10 +126,11 @@ static GstStaticPadTemplate video_src_temp = GST_STATIC_PAD_TEMPLATE ("video",
|
|||
"width = (int) 720, "
|
||||
"height = (int) { "
|
||||
G_STRINGIFY (NTSC_HEIGHT) ", " G_STRINGIFY (PAL_HEIGHT)
|
||||
" }, "
|
||||
"framerate = (double) { "
|
||||
G_STRINGIFY (PAL_FRAMERATE) ", " G_STRINGIFY (NTSC_FRAMERATE)
|
||||
" }")
|
||||
" }, " "framerate = (double) [ 1.0, 60.0 ]"
|
||||
//"framerate = (double) { "
|
||||
//G_STRINGIFY (PAL_FRAMERATE) ", " G_STRINGIFY (NTSC_FRAMERATE)
|
||||
//" }"
|
||||
)
|
||||
);
|
||||
|
||||
static GstStaticPadTemplate audio_src_temp = GST_STATIC_PAD_TEMPLATE ("audio",
|
||||
|
|
@ -284,7 +287,10 @@ gst_dvdec_class_init (GstDVDecClass * klass)
|
|||
FALSE, G_PARAM_READWRITE));
|
||||
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_QUALITY,
|
||||
g_param_spec_enum ("quality", "Quality", "Decoding quality",
|
||||
GST_TYPE_DVDEC_QUALITY, DV_QUALITY_DEFAULT, G_PARAM_READWRITE));
|
||||
GST_TYPE_DVDEC_QUALITY, DV_DEFAULT_QUALITY, G_PARAM_READWRITE));
|
||||
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DECODE_NTH,
|
||||
g_param_spec_int ("drop-factor", "Drop Factor", "Only decode Nth frame",
|
||||
1, G_MAXINT, DV_DEFAULT_DECODE_NTH, G_PARAM_READWRITE));
|
||||
|
||||
gobject_class->set_property = gst_dvdec_set_property;
|
||||
gobject_class->get_property = gst_dvdec_get_property;
|
||||
|
|
@ -366,10 +372,11 @@ gst_dvdec_init (GstDVDec * dvdec)
|
|||
dvdec->height = 0;
|
||||
dvdec->frequency = 0;
|
||||
dvdec->channels = 0;
|
||||
dvdec->drop_factor = 1;
|
||||
|
||||
dvdec->clamp_luma = FALSE;
|
||||
dvdec->clamp_chroma = FALSE;
|
||||
dvdec->quality = DV_QUALITY_BEST;
|
||||
dvdec->quality = DV_DEFAULT_QUALITY;
|
||||
dvdec->loop = FALSE;
|
||||
|
||||
for (i = 0; i < 4; i++) {
|
||||
|
|
@ -740,7 +747,8 @@ gst_dvdec_video_getcaps (GstPad * pad)
|
|||
|
||||
gst_structure_set (structure,
|
||||
"height", G_TYPE_INT, dvdec->height,
|
||||
"framerate", G_TYPE_DOUBLE, dvdec->framerate, NULL);
|
||||
"framerate", G_TYPE_DOUBLE, dvdec->framerate / dvdec->drop_factor,
|
||||
NULL);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -769,7 +777,8 @@ gst_dvdec_video_link (GstPad * pad, const GstCaps * caps)
|
|||
!gst_structure_get_double (structure, "framerate", &framerate))
|
||||
return GST_PAD_LINK_REFUSED;
|
||||
|
||||
if ((height != dvdec->height) || (framerate != dvdec->framerate))
|
||||
if ((height != dvdec->height)
|
||||
|| (framerate != dvdec->framerate / dvdec->drop_factor))
|
||||
return GST_PAD_LINK_REFUSED;
|
||||
|
||||
if (strcmp (gst_structure_get_name (structure), "video/x-raw-rgb") == 0) {
|
||||
|
|
@ -871,7 +880,7 @@ gst_dvdec_loop (GstElement * element)
|
|||
}
|
||||
|
||||
ts = dvdec->next_ts;
|
||||
dvdec->next_ts += GST_SECOND / dvdec->framerate;
|
||||
dvdec->next_ts += GST_SECOND / fps;
|
||||
duration = dvdec->next_ts - ts;
|
||||
|
||||
dv_parse_packs (dvdec->decoder, GST_BUFFER_DATA (buf));
|
||||
|
|
@ -940,6 +949,13 @@ gst_dvdec_loop (GstElement * element)
|
|||
guint8 *outframe_ptrs[3];
|
||||
gint outframe_pitches[3];
|
||||
|
||||
dvdec->framecount++;
|
||||
if (dvdec->framecount < dvdec->drop_factor) {
|
||||
/* don't decode */
|
||||
goto end;
|
||||
}
|
||||
dvdec->framecount = 0;
|
||||
|
||||
if ((dvdec->framerate != fps) || (dvdec->height != height)) {
|
||||
dvdec->height = height;
|
||||
dvdec->framerate = fps;
|
||||
|
|
@ -970,7 +986,7 @@ gst_dvdec_loop (GstElement * element)
|
|||
dvdec->space, outframe_ptrs, outframe_pitches);
|
||||
|
||||
GST_BUFFER_TIMESTAMP (outbuf) = ts;
|
||||
GST_BUFFER_DURATION (outbuf) = duration;
|
||||
GST_BUFFER_DURATION (outbuf) = duration * dvdec->drop_factor;
|
||||
|
||||
gst_dvdec_push (dvdec, outbuf, dvdec->videosrcpad, ts);
|
||||
} else {
|
||||
|
|
@ -978,6 +994,7 @@ gst_dvdec_loop (GstElement * element)
|
|||
dvdec->framerate = fps;
|
||||
}
|
||||
|
||||
end:
|
||||
if ((dvdec->end_position != -1) &&
|
||||
(dvdec->next_ts >= dvdec->end_position) && !dvdec->loop) {
|
||||
gst_element_set_eos (GST_ELEMENT (dvdec));
|
||||
|
|
@ -1003,6 +1020,7 @@ gst_dvdec_change_state (GstElement * element)
|
|||
dv_decoder_new (0, dvdec->clamp_luma, dvdec->clamp_chroma);
|
||||
dvdec->decoder->quality = qualities[dvdec->quality];
|
||||
dvdec->audio_offset = 0;
|
||||
dvdec->framecount = 0;
|
||||
/*
|
||||
* Enable this function call when libdv2 0.100 or higher is more
|
||||
* common
|
||||
|
|
@ -1057,6 +1075,9 @@ gst_dvdec_set_property (GObject * object, guint prop_id, const GValue * value,
|
|||
if ((dvdec->quality < 0) || (dvdec->quality > 5))
|
||||
dvdec->quality = 0;
|
||||
break;
|
||||
case ARG_DECODE_NTH:
|
||||
dvdec->drop_factor = g_value_get_int (value);
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
|
|
@ -1084,6 +1105,9 @@ gst_dvdec_get_property (GObject * object, guint prop_id, GValue * value,
|
|||
case ARG_QUALITY:
|
||||
g_value_set_enum (value, dvdec->quality);
|
||||
break;
|
||||
case ARG_DECODE_NTH:
|
||||
g_value_set_int (value, dvdec->drop_factor);
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
|
|
|
|||
|
|
@ -63,6 +63,8 @@ struct _GstDVDec {
|
|||
gint channels;
|
||||
|
||||
gint length;
|
||||
gint framecount;
|
||||
gint drop_factor;
|
||||
guint64 next_ts;
|
||||
guint64 audio_offset;
|
||||
guint64 end_position;
|
||||
|
|
|
|||
Loading…
Reference in a new issue