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ext/mpeg2dec/gstmpeg2dec.*: removed the static pad template so that we can add the more accurate framerate value to t...

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Original commit message from CVS:
* ext/mpeg2dec/gstmpeg2dec.c: (src_templ),
(gst_mpeg2dec_base_init), (gst_mpeg2dec_init),
(gst_mpeg2dec_negotiate_format):
* ext/mpeg2dec/gstmpeg2dec.h:
removed the static pad template so that we can add the
more accurate framerate value to the caps.
This commit is contained in:
Wim Taymans 2004-05-05 09:13:42 +00:00
parent 5981cc0475
commit 1fa45fe714
3 changed files with 90 additions and 22 deletions
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10
ChangeLog
View file

@ -1,3 +1,13 @@
2004-05-05 Wim Taymans <wim@fluendo.com>
* ext/mpeg2dec/gstmpeg2dec.c: (src_templ),
(gst_mpeg2dec_base_init), (gst_mpeg2dec_init),
(gst_mpeg2dec_negotiate_format):
* ext/mpeg2dec/gstmpeg2dec.h:
removed the static pad template so that we can add the
more accurate framerate value to the caps.
2004-05-04 Benjamin Otte <otte@gnome.org>
* configure.ac:

101
ext/mpeg2dec/gstmpeg2dec.c
View file

@ -43,6 +43,17 @@ GST_DEBUG_CATEGORY_EXTERN (GST_CAT_SEEK);
GST_DEBUG_CATEGORY_STATIC (mpeg2dec_debug);
#define GST_CAT_DEFAULT (mpeg2dec_debug)
/* table with framerates expressed as fractions */
static gdouble fpss[] = { 24.0 / 1.001, 24.0, 25.0,
30.0 / 1.001, 30.0, 50.0,
60.0 / 1.001, 60.0, 0
};
/* frame periods */
static guint frame_periods[] = {
1126125, 1125000, 1080000, 900900, 900000, 540000, 450450, 450000, 0
};
/* elementfactory information */
static GstElementDetails gst_mpeg2dec_details = {
"mpeg1 and mpeg2 video decoder",
@ -64,19 +75,59 @@ enum
/* FILL ME */
};
static GstStaticPadTemplate src_template_factory =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw-yuv, "
"format = (fourcc) { YV12, I420, Y42B }, "
"width = (int) [ 16, 4096 ], "
"height = (int) [ 16, 4096 ], "
"pixel_width = (int) [ 1, 255 ], "
"pixel_height = (int) [ 1, 255 ], "
"framerate = (double) { 23.976024, 24.0, "
"25.0, 29.970030, 30.0, 50.0, 59.940060, 60.0 }")
);
/*
* We can't use fractions in static pad templates, so
* we do something manual...
*/
static GstPadTemplate *
src_templ (void)
{
static GstPadTemplate *templ = NULL;
if (!templ) {
GstCaps *caps;
GstStructure *structure;
GValue list = { 0 }
, fps =
{
0}
, fmt = {
0};
char *fmts[] = { "YV12", "I420", "Y42B", NULL };
guint n;
caps = gst_caps_new_simple ("video/x-raw-yuv",
"format", GST_TYPE_FOURCC,
GST_MAKE_FOURCC ('I', '4', '2', '0'),
"width", GST_TYPE_INT_RANGE, 16, 4096,
"height", GST_TYPE_INT_RANGE, 16, 4096, NULL);
structure = gst_caps_get_structure (caps, 0);
g_value_init (&list, GST_TYPE_LIST);
g_value_init (&fps, G_TYPE_DOUBLE);
for (n = 0; fpss[n] != 0; n++) {
g_value_set_double (&fps, fpss[n]);
gst_value_list_append_value (&list, &fps);
}
gst_structure_set_value (structure, "framerate", &list);
g_value_unset (&list);
g_value_unset (&fps);
g_value_init (&list, GST_TYPE_LIST);
g_value_init (&fmt, GST_TYPE_FOURCC);
for (n = 0; fmts[n] != NULL; n++) {
gst_value_set_fourcc (&fmt, GST_STR_FOURCC (fmts[n]));
gst_value_list_append_value (&list, &fmt);
}
gst_structure_set_value (structure, "format", &list);
g_value_unset (&list);
g_value_unset (&fmt);
templ = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, caps);
}
return templ;
}
#ifdef enable_user_data
static GstStaticPadTemplate user_data_template_factory =
@ -162,8 +213,7 @@ gst_mpeg2dec_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_template_factory));
gst_element_class_add_pad_template (element_class, src_templ ());
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template_factory));
#ifdef enable_user_data
@ -208,9 +258,7 @@ gst_mpeg2dec_init (GstMpeg2dec * mpeg2dec)
gst_pad_set_convert_function (mpeg2dec->sinkpad,
GST_DEBUG_FUNCPTR (gst_mpeg2dec_convert_sink));
mpeg2dec->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&src_template_factory), "src");
mpeg2dec->srcpad = gst_pad_new_from_template (src_templ (), "src");
gst_element_add_pad (GST_ELEMENT (mpeg2dec), mpeg2dec->srcpad);
gst_pad_use_explicit_caps (mpeg2dec->srcpad);
gst_pad_set_formats_function (mpeg2dec->srcpad,
@ -377,8 +425,7 @@ gst_mpeg2dec_negotiate_format (GstMpeg2dec * mpeg2dec)
"height", G_TYPE_INT, mpeg2dec->height,
"pixel_width", G_TYPE_INT, mpeg2dec->pixel_width,
"pixel_height", G_TYPE_INT, mpeg2dec->pixel_height,
"framerate", G_TYPE_DOUBLE, 1. * GST_SECOND / mpeg2dec->frame_period,
NULL);
"framerate", G_TYPE_DOUBLE, mpeg2dec->frame_rate, NULL);
ret = gst_pad_set_explicit_caps (mpeg2dec->srcpad, caps);
if (!ret)
@ -521,16 +568,26 @@ gst_mpeg2dec_chain (GstPad * pad, GstData * _data)
switch (state) {
case STATE_SEQUENCE:
{
gint i;
mpeg2dec->width = info->sequence->width;
mpeg2dec->height = info->sequence->height;
mpeg2dec->pixel_width = info->sequence->pixel_width;
mpeg2dec->pixel_height = info->sequence->pixel_height;
mpeg2dec->total_frames = 0;
/* find framerate */
for (i = 0; i < 9; i++) {
if (info->sequence->frame_period == frame_periods[i]) {
mpeg2dec->frame_rate = fpss[i];
}
}
mpeg2dec->frame_period =
info->sequence->frame_period * GST_USECOND / 27;
GST_DEBUG ("sequence flags: %d, frame period: %d",
info->sequence->flags, info->sequence->frame_period);
GST_DEBUG ("sequence flags: %d, frame period: %d, frame rate: %d",
info->sequence->flags, info->sequence->frame_period,
mpeg2dec->frame_rate);
GST_DEBUG ("profile: %02x, colour_primaries: %d",
info->sequence->profile_level_id, info->sequence->colour_primaries);
GST_DEBUG ("transfer chars: %d, matrix coef: %d",

1
ext/mpeg2dec/gstmpeg2dec.h
View file

@ -86,6 +86,7 @@ struct _GstMpeg2dec {
gint frame_rate_code;
gint64 total_frames;
gint64 frame_period;
gdouble frame_rate;
gboolean need_sequence;
GstEvent *pending_event;