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mpegtsmux: add PAT/PMT in streamheader

Browse source 
The check for PAT/PMT buffers was suggested by
Zaheer Abbas Merali.

https://bugzilla.gnome.org/show_bug.cgi?id=608896
This commit is contained in:
Marc-André Lureau 2010-02-02 11:43:22 -05:00 committed by Zaheer Abbas Merali
parent 1537023905
commit 4d3a965476
2 changed files with 74 additions and 7 deletions
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78
gst/mpegtsmux/mpegtsmux.c
View file

@ -148,6 +148,7 @@ static GstPad *mpegtsmux_request_new_pad (GstElement * element,
static void mpegtsmux_release_pad (GstElement * element, GstPad * pad);
static GstStateChangeReturn mpegtsmux_change_state (GstElement * element,
GstStateChange transition);
static void mpegtsdemux_set_header_on_caps (MpegTsMux * mux);
GST_BOILERPLATE (MpegTsMux, mpegtsmux, GstElement, GST_TYPE_ELEMENT);
@ -233,6 +234,8 @@ mpegtsmux_init (MpegTsMux * mux, MpegTsMuxClass * g_class)
mux->is_delta = TRUE;
mux->prog_map = NULL;
mux->streamheader = NULL;
mux->streamheader_sent = FALSE;
}
static void
@ -261,7 +264,19 @@ mpegtsmux_dispose (GObject * object)
g_free (mux->programs);
mux->programs = NULL;
}
if (mux->streamheader) {
GstBuffer *buf;
GList *sh;
sh = mux->streamheader;
while (sh) {
buf = sh->data;
gst_buffer_unref (buf);
sh = g_list_next (sh);
}
g_list_free (mux->streamheader);
mux->streamheader = NULL;
}
GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object));
}
@ -903,13 +918,6 @@ new_packet_cb (guint8 * data, guint len, void *user_data, gint64 new_pcr)
/* In case of Normal Ts packets */
GST_LOG_OBJECT (mux, "Outputting a packet of length %d", len);
buf = gst_buffer_new_and_alloc (len);
if (mux->is_delta) {
GST_LOG_OBJECT (mux, "marking as delta unit");
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
} else {
GST_DEBUG_OBJECT (mux, "marking as non-delta unit");
mux->is_delta = TRUE;
}
if (G_UNLIKELY (buf == NULL)) {
mux->last_flow_ret = GST_FLOW_ERROR;
return FALSE;
@ -918,6 +926,28 @@ new_packet_cb (guint8 * data, guint len, void *user_data, gint64 new_pcr)
memcpy (GST_BUFFER_DATA (buf), data, len);
GST_BUFFER_TIMESTAMP (buf) = mux->last_ts;
if (!mux->streamheader_sent) {
guint pid = ((data[1] & 0x1f) << 8) | data[2];
if (pid == 0x00 || pid == 0x02) { /* if it's a PAT or a PMT */
mux->streamheader =
g_list_append (mux->streamheader, gst_buffer_copy (buf));
} else if (mux->streamheader) {
mpegtsdemux_set_header_on_caps (mux);
mux->streamheader_sent = TRUE;
/* don't unset the streamheaders by pushing old caps */
gst_buffer_set_caps (buf, GST_PAD_CAPS (mux->srcpad));
}
}
if (mux->is_delta) {
GST_LOG_OBJECT (mux, "marking as delta unit");
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
} else {
GST_DEBUG_OBJECT (mux, "marking as non-delta unit");
mux->is_delta = TRUE;
}
ret = gst_pad_push (mux->srcpad, buf);
if (G_UNLIKELY (ret != GST_FLOW_OK)) {
mux->last_flow_ret = ret;
@ -928,6 +958,40 @@ new_packet_cb (guint8 * data, guint len, void *user_data, gint64 new_pcr)
return TRUE;
}
static void
mpegtsdemux_set_header_on_caps (MpegTsMux * mux)
{
GstBuffer *buf;
GstStructure *structure;
GValue array = { 0 };
GValue value = { 0 };
GstCaps *caps = GST_PAD_CAPS (mux->srcpad);
GList *sh;
caps = gst_caps_make_writable (caps);
structure = gst_caps_get_structure (caps, 0);
g_value_init (&array, GST_TYPE_ARRAY);
sh = mux->streamheader;
while (sh) {
buf = sh->data;
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_IN_CAPS);
g_value_init (&value, GST_TYPE_BUFFER);
gst_value_take_buffer (&value, buf);
gst_value_array_append_value (&array, &value);
g_value_unset (&value);
sh = g_list_next (sh);
}
g_list_free (mux->streamheader);
mux->streamheader = NULL;
gst_structure_set_value (structure, "streamheader", &array);
gst_pad_set_caps (mux->srcpad, caps);
g_value_unset (&array);
}
static gboolean
mpegtsdemux_prepare_srcpad (MpegTsMux * mux)
{

3
gst/mpegtsmux/mpegtsmux.h
View file

@ -125,6 +125,9 @@ struct MpegTsMux {
GstClockTime last_ts;
gboolean is_delta;
GList *streamheader;
gboolean streamheader_sent;
};
struct MpegTsMuxClass {