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ext/dv/: Fractional framerates for DV.

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Original commit message from CVS:
* ext/dv/gstdvdec.c: (gst_dvdec_init), (gst_dvdec_sink_setcaps):
* ext/dv/gstdvdec.h:
* ext/dv/gstdvdemux.c: (gst_dvdemux_init),
(gst_dvdemux_src_convert), (gst_dvdemux_sink_convert),
(gst_dvdemux_demux_video), (gst_dvdemux_demux_frame),
(gst_dvdemux_flush):
* ext/dv/gstdvdemux.h:
Fractional framerates for DV.
This commit is contained in:
Michael Smith 2005-11-22 17:09:36 +00:00
parent e8464db22f
commit efe4bc244d
5 changed files with 64 additions and 25 deletions
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11
ChangeLog
View file

@ -1,3 +1,14 @@
2005-11-22 Michael Smith <msmith@fluendo.com>
* ext/dv/gstdvdec.c: (gst_dvdec_init), (gst_dvdec_sink_setcaps):
* ext/dv/gstdvdec.h:
* ext/dv/gstdvdemux.c: (gst_dvdemux_init),
(gst_dvdemux_src_convert), (gst_dvdemux_sink_convert),
(gst_dvdemux_demux_video), (gst_dvdemux_demux_frame),
(gst_dvdemux_flush):
* ext/dv/gstdvdemux.h:
Fractional framerates for DV.
2005-11-22 Tim-Philipp Müller <tim at centricular dot net>
* gst/autodetect/gstautoaudiosink.c:

23
ext/dv/gstdvdec.c
View file

@ -67,7 +67,7 @@ static GstStaticPadTemplate src_temp = GST_STATIC_PAD_TEMPLATE ("src",
GST_STATIC_CAPS ("video/x-raw-yuv, "
"format = (fourcc) YUY2, "
"width = (int) 720, "
"framerate = (double) [ 1.0, 60.0 ];"
"framerate = (fraction) [ 1/1, 60/1 ];"
"video/x-raw-rgb, "
"bpp = (int) 32, "
"depth = (int) 24, "
@ -76,7 +76,7 @@ static GstStaticPadTemplate src_temp = GST_STATIC_PAD_TEMPLATE ("src",
"green_mask = (int) 0x00ff0000, "
"blue_mask = (int) 0xff000000, "
"width = (int) 720, "
"framerate = (double) [ 1.0, 60.0 ];"
"framerate = (fraction) [ 1/1, 60/1 ];"
"video/x-raw-rgb, "
"bpp = (int) 24, "
"depth = (int) 24, "
@ -84,7 +84,7 @@ static GstStaticPadTemplate src_temp = GST_STATIC_PAD_TEMPLATE ("src",
"red_mask = (int) 0x00ff0000, "
"green_mask = (int) 0x0000ff00, "
"blue_mask = (int) 0x000000ff, "
"width = (int) 720, " "framerate = (double) [ 1.0, 60.0 ]")
"width = (int) 720, " "framerate = (fraction) [ 1/1, 60/1 ]")
);
#define GST_TYPE_DVDEC_QUALITY (gst_dvdec_quality_get_type())
@ -186,7 +186,8 @@ gst_dvdec_init (GstDVDec * dvdec, GstDVDecClass * g_class)
gst_element_add_pad (GST_ELEMENT (dvdec), dvdec->srcpad);
dvdec->framerate = 0;
dvdec->framerate_numerator = 0;
dvdec->framerate_denominator = 0;
dvdec->height = 0;
dvdec->wide = FALSE;
dvdec->drop_factor = 1;
@ -203,7 +204,7 @@ gst_dvdec_sink_setcaps (GstPad * pad, GstCaps * caps)
GstDVDec *dvdec;
GstStructure *s;
GstCaps *othercaps;
const GValue *v;
const GValue *par, *rate;
dvdec = GST_DVDEC (gst_pad_get_parent (pad));
@ -212,11 +213,14 @@ gst_dvdec_sink_setcaps (GstPad * pad, GstCaps * caps)
if (!gst_structure_get_int (s, "height", &dvdec->height))
goto error;
if (!(v = gst_structure_get_value (s, "pixel-aspect-ratio")))
if (!(par = gst_structure_get_value (s, "pixel-aspect-ratio")))
goto error;
if (!gst_structure_get_double (s, "framerate", &dvdec->framerate))
if (!(rate = gst_structure_get_value (s, "framerate")))
goto error;
dvdec->framerate_numerator = gst_value_get_fraction_numerator (rate);
dvdec->framerate_denominator = gst_value_get_fraction_denominator (rate);
/* ignoring rgb, bgr0 for now */
dvdec->bpp = 2;
@ -225,9 +229,10 @@ gst_dvdec_sink_setcaps (GstPad * pad, GstCaps * caps)
"format", GST_TYPE_FOURCC, GST_STR_FOURCC ("YUY2"),
"width", G_TYPE_INT, 720,
"height", G_TYPE_INT, dvdec->height,
"framerate", G_TYPE_DOUBLE, dvdec->framerate, NULL);
"framerate", GST_TYPE_FRACTION, dvdec->framerate_numerator,
dvdec->framerate_denominator, NULL);
gst_structure_set_value (gst_caps_get_structure (othercaps, 0),
"pixel-aspect-ratio", v);
"pixel-aspect-ratio", par);
gst_pad_set_caps (dvdec->srcpad, othercaps);

3
ext/dv/gstdvdec.h
View file

@ -58,7 +58,8 @@ struct _GstDVDec {
gint frame_len;
gboolean PAL;
gdouble framerate;
gint framerate_numerator;
gint framerate_denominator;
gint height;
gboolean wide;

48
ext/dv/gstdvdemux.c
View file

@ -66,11 +66,13 @@
#define NTSC_HEIGHT 480
#define NTSC_BUFFER 120000
#define NTSC_FRAMERATE 30000/1001.
#define NTSC_FRAMERATE_NUMERATOR 30000
#define NTSC_FRAMERATE_DENOMINATOR 1001
#define PAL_HEIGHT 576
#define PAL_BUFFER 144000
#define PAL_FRAMERATE 25.0
#define PAL_FRAMERATE_NUMERATOR 25
#define PAL_FRAMERATE_DENOMINATOR 1
#define PAL_NORMAL_PAR_X 59
#define PAL_NORMAL_PAR_Y 54
@ -187,7 +189,9 @@ gst_dvdemux_init (GstDVDemux * dvdemux, GstDVDemuxClass * g_class)
dvdemux->stop_timestamp = -1LL;
dvdemux->need_discont = FALSE;
dvdemux->new_media = FALSE;
dvdemux->framerate = 0;
dvdemux->framerate_numerator = 0;
dvdemux->framerate_denominator = 0;
dvdemux->total_frames = 0;
dvdemux->height = 0;
dvdemux->frequency = 0;
dvdemux->channels = 0;
@ -263,8 +267,9 @@ gst_dvdemux_src_convert (GstPad * pad, GstFormat src_format, gint64 src_value,
case GST_FORMAT_TIME:
*dest_format = GST_FORMAT_TIME;
if (pad == dvdemux->videosrcpad)
*dest_value = src_value * GST_SECOND /
(dvdemux->frame_len * dvdemux->framerate);
*dest_value = src_value * GST_SECOND *
dvdemux->framerate_denominator /
(dvdemux->frame_len * dvdemux->framerate_numerator);
else if (pad == dvdemux->audiosrcpad)
*dest_value = src_value * GST_SECOND /
(2 * dvdemux->frequency * dvdemux->channels);
@ -277,8 +282,9 @@ gst_dvdemux_src_convert (GstPad * pad, GstFormat src_format, gint64 src_value,
switch (*dest_format) {
case GST_FORMAT_BYTES:
if (pad == dvdemux->videosrcpad)
*dest_value = src_value * dvdemux->frame_len * dvdemux->framerate
/ GST_SECOND;
*dest_value = src_value * dvdemux->frame_len *
dvdemux->framerate_numerator /
(dvdemux->framerate_denominator * GST_SECOND);
else if (pad == dvdemux->audiosrcpad)
*dest_value = 2 * src_value * dvdemux->frequency *
dvdemux->channels / GST_SECOND;
@ -286,7 +292,8 @@ gst_dvdemux_src_convert (GstPad * pad, GstFormat src_format, gint64 src_value,
case GST_FORMAT_DEFAULT:
if (pad == dvdemux->videosrcpad) {
if (src_value)
*dest_value = src_value * dvdemux->framerate / GST_SECOND;
*dest_value = src_value * dvdemux->framerate_numerator /
(dvdemux->framerate_denominator * GST_SECOND);
else
*dest_value = 0;
} else if (pad == dvdemux->audiosrcpad) {
@ -303,7 +310,8 @@ gst_dvdemux_src_convert (GstPad * pad, GstFormat src_format, gint64 src_value,
switch (*dest_format) {
case GST_FORMAT_TIME:
if (pad == dvdemux->videosrcpad) {
*dest_value = src_value * GST_SECOND / dvdemux->framerate;
*dest_value = src_value * GST_SECOND *
dvdemux->framerate_denominator / dvdemux->framerate_numerator;
} else if (pad == dvdemux->audiosrcpad) {
if (src_value)
*dest_value =
@ -376,7 +384,8 @@ gst_dvdemux_sink_convert (GstPad * pad, GstFormat src_format, gint64 src_value,
/* get frame number */
frame = src_value / dvdemux->frame_len;
*dest_value = (frame * GST_SECOND) / dvdemux->framerate;
*dest_value = (frame * GST_SECOND * dvdemux->framerate_denominator) /
dvdemux->framerate_numerator;
break;
}
default:
@ -390,7 +399,8 @@ gst_dvdemux_sink_convert (GstPad * pad, GstFormat src_format, gint64 src_value,
guint64 frame;
/* calculate the frame */
frame = src_value * dvdemux->framerate / GST_SECOND;
frame = src_value * dvdemux->framerate_numerator /
(dvdemux->framerate_denominator * GST_SECOND);
/* calculate the offset */
*dest_value = frame * dvdemux->frame_len;
break;
@ -825,7 +835,8 @@ gst_dvdemux_demux_video (GstDVDemux * dvdemux, const guint8 * data)
"systemstream", G_TYPE_BOOLEAN, FALSE,
"width", G_TYPE_INT, 720,
"height", G_TYPE_INT, height,
"framerate", G_TYPE_DOUBLE, dvdemux->framerate,
"framerate", GST_TYPE_FRACTION, dvdemux->framerate_numerator,
dvdemux->framerate_denominator,
"pixel-aspect-ratio", GST_TYPE_FRACTION, par_x, par_y, NULL);
gst_pad_set_caps (dvdemux->videosrcpad, caps);
gst_caps_unref (caps);
@ -893,7 +904,10 @@ gst_dvdemux_demux_frame (GstDVDemux * dvdemux, const guint8 * data)
dvdemux->need_discont = FALSE;
}
next_ts = dvdemux->timestamp + GST_SECOND / dvdemux->framerate;
dvdemux->total_frames++;
next_ts = dvdemux->total_frames * GST_SECOND *
dvdemux->framerate_denominator / dvdemux->framerate_numerator;
dvdemux->duration = next_ts - dvdemux->timestamp;
dv_parse_packs (dvdemux->decoder, data);
@ -948,7 +962,13 @@ gst_dvdemux_flush (GstDVDemux * dvdemux)
/* after parsing the header we know the length of the data */
dvdemux->PAL = dv_system_50_fields (dvdemux->decoder);
length = dvdemux->frame_len = (dvdemux->PAL ? PAL_BUFFER : NTSC_BUFFER);
dvdemux->framerate = dvdemux->PAL ? PAL_FRAMERATE : NTSC_FRAMERATE;
if (dvdemux->PAL) {
dvdemux->framerate_numerator = PAL_FRAMERATE_NUMERATOR;
dvdemux->framerate_denominator = PAL_FRAMERATE_DENOMINATOR;
} else {
dvdemux->framerate_numerator = NTSC_FRAMERATE_NUMERATOR;
dvdemux->framerate_denominator = NTSC_FRAMERATE_DENOMINATOR;
}
/* let demux_video set the height, it needs to detect when things change so
* it can reset caps */

4
ext/dv/gstdvdemux.h
View file

@ -61,7 +61,8 @@ struct _GstDVDemux {
/* PAL or NTSC flag */
gboolean PAL;
/* video params */
gdouble framerate;
gint framerate_numerator;
gint framerate_denominator;
gint height;
gboolean wide;
/* audio params */
@ -72,6 +73,7 @@ struct _GstDVDemux {
guint64 timestamp;
guint64 duration;
guint total_frames;
guint64 audio_offset;
guint64 video_offset;