static void
gst_y4m_encode_reset (GstY4mEncode * filter)
{
- filter->width = filter->height = -1;
- filter->fps_num = filter->fps_den = 1;
- filter->par_num = filter->par_den = 1;
- filter->colorspace = "unknown";
+ filter->negotiated = FALSE;
}
static gboolean
gst_y4m_encode_setcaps (GstPad * pad, GstCaps * vscaps)
{
+ gboolean ret;
GstY4mEncode *filter;
- GstStructure *structure;
- gboolean res;
- gint w, h;
- guint32 fourcc;
- const GValue *fps, *par, *interlaced;
+ GstVideoInfo info;
filter = GST_Y4M_ENCODE (GST_PAD_PARENT (pad));
- structure = gst_caps_get_structure (vscaps, 0);
+ if (!gst_video_info_from_caps (&info, vscaps))
+ goto invalid_format;
- res = gst_structure_get_int (structure, "width", &w);
- res &= gst_structure_get_int (structure, "height", &h);
- res &= ((fps = gst_structure_get_value (structure, "framerate")) != NULL);
- res &= gst_structure_get_fourcc (structure, "format", &fourcc);
+ filter->info = info;
- switch (fourcc) { /* Translate fourcc to Y4M colorspace code */
- case GST_MAKE_FOURCC ('I', '4', '2', '0'):
- case GST_MAKE_FOURCC ('I', 'Y', 'U', 'V'):
+ switch (GST_VIDEO_INFO_FORMAT (&filter->info)) {
+ case GST_VIDEO_FORMAT_I420:
filter->colorspace = "420";
break;
- case GST_MAKE_FOURCC ('Y', '4', '2', 'B'):
+ case GST_VIDEO_FORMAT_Y42B:
filter->colorspace = "422";
break;
- case GST_MAKE_FOURCC ('Y', '4', '1', 'B'):
+ case GST_VIDEO_FORMAT_Y41B:
filter->colorspace = "411";
break;
- case GST_MAKE_FOURCC ('Y', '4', '4', '4'):
+ case GST_VIDEO_FORMAT_Y444:
filter->colorspace = "444";
break;
default:
- res = FALSE;
- break;
+ goto invalid_format;
}
- if (!res || w <= 0 || h <= 0 || !GST_VALUE_HOLDS_FRACTION (fps))
- return FALSE;
-
- /* optional interlaced info */
- interlaced = gst_structure_get_value (structure, "interlaced");
-
- /* optional par info */
- par = gst_structure_get_value (structure, "pixel-aspect-ratio");
-
- filter->width = w;
- filter->height = h;
- filter->fps_num = gst_value_get_fraction_numerator (fps);
- filter->fps_den = gst_value_get_fraction_denominator (fps);
- if ((par != NULL) && GST_VALUE_HOLDS_FRACTION (par)) {
- filter->par_num = gst_value_get_fraction_numerator (par);
- filter->par_den = gst_value_get_fraction_denominator (par);
- } else { /* indicates unknown */
- filter->par_num = 0;
- filter->par_den = 0;
- }
- if ((interlaced != NULL) && G_VALUE_HOLDS (interlaced, G_TYPE_BOOLEAN)) {
- filter->interlaced = g_value_get_boolean (interlaced);
- } else {
- /* assume progressive if no interlaced property in caps */
- filter->interlaced = FALSE;
- }
/* the template caps will do for the src pad, should always accept */
- return gst_pad_set_caps (filter->srcpad,
+ ret = gst_pad_set_caps (filter->srcpad,
gst_static_pad_template_get_caps (&y4mencode_src_factory));
+
+ filter->negotiated = ret;
+
+ return ret;
+
+ /* ERRORS */
+invalid_format:
+ {
+ GST_ERROR_OBJECT (filter, "got invalid caps");
+ return FALSE;
+ }
}
static gboolean
}
static inline GstBuffer *
-gst_y4m_encode_get_stream_header (GstY4mEncode * filter)
+gst_y4m_encode_get_stream_header (GstY4mEncode * filter, gboolean tff)
{
gpointer header;
GstBuffer *buf;
gchar interlaced;
gsize len;
- interlaced = 'p';
-
- if (filter->interlaced && filter->top_field_first)
- interlaced = 't';
- else if (filter->interlaced)
- interlaced = 'b';
+ if (filter->info.flags & GST_VIDEO_FLAG_INTERLACED) {
+ if (tff)
+ interlaced = 't';
+ else
+ interlaced = 'b';
+ } else {
+ interlaced = 'p';
+ }
header = g_strdup_printf ("YUV4MPEG2 C%s W%d H%d I%c F%d:%d A%d:%d\n",
- filter->colorspace, filter->width, filter->height, interlaced,
- filter->fps_num, filter->fps_den, filter->par_num, filter->par_den);
+ filter->colorspace, GST_VIDEO_INFO_WIDTH (&filter->info),
+ GST_VIDEO_INFO_HEIGHT (&filter->info), interlaced,
+ GST_VIDEO_INFO_FPS_N (&filter->info),
+ GST_VIDEO_INFO_FPS_D (&filter->info),
+ GST_VIDEO_INFO_PAR_N (&filter->info),
+ GST_VIDEO_INFO_PAR_D (&filter->info));
len = strlen (header);
buf = gst_buffer_new ();
GstClockTime timestamp;
/* check we got some decent info from caps */
- if (filter->width < 0) {
- GST_ELEMENT_ERROR ("filter", CORE, NEGOTIATION, (NULL),
- ("format wasn't negotiated before chain function"));
- gst_buffer_unref (buf);
- return GST_FLOW_NOT_NEGOTIATED;
- }
+ if (GST_VIDEO_INFO_FORMAT (&filter->info) != GST_VIDEO_FORMAT_UNKNOWN)
+ goto not_negotiated;
timestamp = GST_BUFFER_TIMESTAMP (buf);
if (G_UNLIKELY (!filter->header)) {
- if (filter->interlaced == TRUE) {
- if (GST_BUFFER_FLAG_IS_SET (buf, GST_VIDEO_BUFFER_TFF)) {
- filter->top_field_first = TRUE;
- } else {
- filter->top_field_first = FALSE;
- }
+ gboolean tff;
+
+ if (filter->info.flags & GST_VIDEO_FLAG_INTERLACED) {
+ tff = GST_BUFFER_FLAG_IS_SET (buf, GST_VIDEO_BUFFER_TFF);
}
- outbuf = gst_y4m_encode_get_stream_header (filter);
+ outbuf = gst_y4m_encode_get_stream_header (filter, tff);
filter->header = TRUE;
outbuf = gst_buffer_join (outbuf, gst_y4m_encode_get_frame_header (filter));
} else {
outbuf = gst_y4m_encode_get_frame_header (filter);
}
- /* join with data */
+ /* join with data, FIXME, strides are all wrong etc */
outbuf = gst_buffer_join (outbuf, buf);
/* decorate */
outbuf = gst_buffer_make_writable (outbuf);
GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
return gst_pad_push (filter->srcpad, outbuf);
+
+ /* ERRORS */
+not_negotiated:
+ {
+ GST_ELEMENT_ERROR ("filter", CORE, NEGOTIATION, (NULL),
+ ("format wasn't negotiated before chain function"));
+ gst_buffer_unref (buf);
+ return GST_FLOW_NOT_NEGOTIATED;
+ }
}
static void