mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-27 04:01:08 +00:00
Code Issues 1 Projects Releases Wiki Activity

irtspparse: port to 0.11

Browse source
This commit is contained in:
Mark Nauwelaerts 2012-01-16 22:51:59 +01:00
parent 90c075b1f6
commit 0d088c7eb1
1 changed files with 37 additions and 32 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

69
gst/pcapparse/gstirtspparse.c
View file

@ -80,29 +80,14 @@ static void gst_irtsp_parse_set_property (GObject * object,
static void gst_irtsp_parse_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
GST_BOILERPLATE (GstIRTSPParse, gst_irtsp_parse, GstBaseParse,
GST_TYPE_BASE_PARSE);
static void
gst_irtsp_parse_base_init (gpointer klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_template));
gst_element_class_set_details_simple (element_class, "IRTSPParse",
"Raw/Parser",
"Parses a raw interleaved RTSP stream",
"Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk>");
}
#define parent_class gst_irtsp_parse_parent_class
G_DEFINE_TYPE (GstIRTSPParse, gst_irtsp_parse, GST_TYPE_BASE_PARSE);
static void
gst_irtsp_parse_class_init (GstIRTSPParseClass * klass)
{
GstBaseParseClass *parse_class = GST_BASE_PARSE_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GST_DEBUG_CATEGORY_INIT (irtsp_parse_debug, "irtspparse", 0,
@ -123,6 +108,16 @@ gst_irtsp_parse_class_init (GstIRTSPParseClass * klass)
parse_class->check_valid_frame =
GST_DEBUG_FUNCPTR (gst_irtsp_parse_check_valid_frame);
parse_class->parse_frame = GST_DEBUG_FUNCPTR (gst_irtsp_parse_parse_frame);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_template));
gst_element_class_set_details_simple (element_class, "IRTSPParse",
"Raw/Parser",
"Parses a raw interleaved RTSP stream",
"Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk>");
}
static void
@ -131,7 +126,7 @@ gst_irtsp_parse_reset (GstIRTSPParse * IRTSPParse)
}
static void
gst_irtsp_parse_init (GstIRTSPParse * IRTSPParse, GstIRTSPParseClass * klass)
gst_irtsp_parse_init (GstIRTSPParse * IRTSPParse)
{
gst_base_parse_set_min_frame_size (GST_BASE_PARSE (IRTSPParse), 4);
gst_irtsp_parse_reset (IRTSPParse);
@ -169,33 +164,43 @@ gst_irtsp_parse_check_valid_frame (GstBaseParse * parse,
{
GstIRTSPParse *IRTSPParse = GST_IRTSP_PARSE (parse);
GstBuffer *buf = frame->buffer;
GstByteReader reader = GST_BYTE_READER_INIT_FROM_BUFFER (buf);
GstByteReader reader;
gint off;
gsize size;
guint8 *data;
gboolean ret = FALSE;
if (G_UNLIKELY (GST_BUFFER_SIZE (buf) < 4))
return FALSE;
data = gst_buffer_map (buf, &size, NULL, GST_MAP_READ);
if (G_UNLIKELY (size < 4))
goto exit;
gst_byte_reader_init (&reader, data, size);
off = gst_byte_reader_masked_scan_uint32 (&reader, 0xffff0000,
0x24000000 + (IRTSPParse->channel_id << 16), 0, GST_BUFFER_SIZE (buf));
0x24000000 + (IRTSPParse->channel_id << 16), 0, size);
GST_LOG_OBJECT (parse, "possible sync at buffer offset %d", off);
/* didn't find anything that looks like a sync word, skip */
if (off < 0) {
*skipsize = GST_BUFFER_SIZE (buf) - 3;
return FALSE;
*skipsize = size - 3;
goto exit;
}
/* possible frame header, but not at offset 0? skip bytes before sync */
if (off > 0) {
*skipsize = off;
return FALSE;
goto exit;
}
*framesize = GST_READ_UINT16_BE (GST_BUFFER_DATA (frame->buffer) + 2) + 4;
*framesize = GST_READ_UINT16_BE (data + 2) + 4;
GST_LOG_OBJECT (parse, "got frame size %d", *framesize);
ret = TRUE;
return TRUE;
exit:
gst_buffer_unmap (buf, data, -1);
return ret;
}
static GstFlowReturn
@ -205,13 +210,13 @@ gst_irtsp_parse_parse_frame (GstBaseParse * parse, GstBaseParseFrame * frame)
* could also ask baseparse to skip this,
* but that would give us a discontinuity for free
* which is a bit too much to have on all our packets */
GST_BUFFER_DATA (frame->buffer) += 4;
GST_BUFFER_SIZE (frame->buffer) -= 4;
frame->buffer = gst_buffer_make_writable (frame->buffer);
gst_buffer_resize (frame->buffer, 4, -1);
if (!GST_PAD_CAPS (GST_BASE_PARSE_SRC_PAD (parse))) {
if (!gst_pad_has_current_caps (GST_BASE_PARSE_SRC_PAD (parse))) {
GstCaps *caps;
caps = gst_caps_new_simple ("application/x-rtp", NULL);
caps = gst_caps_new_empty_simple ("application/x-rtp");
gst_pad_set_caps (GST_BASE_PARSE_SRC_PAD (parse), caps);
gst_caps_unref (caps);
}