extern const UWord8 block_size[];
+#define AMRWB_HEADER_SIZE 9
+#define AMRWB_HEADER_STR "#!AMR-WB\n"
+
static void gst_amrwbparse_base_init (gpointer klass);
static void gst_amrwbparse_class_init (GstAmrwbParseClass * klass);
static void gst_amrwbparse_init (GstAmrwbParse * amrwbparse,
static const GstQueryType *gst_amrwbparse_querytypes (GstPad * pad);
static gboolean gst_amrwbparse_query (GstPad * pad, GstQuery * query);
+static gboolean gst_amrwbparse_sink_event (GstPad * pad, GstEvent * event);
+static gboolean gst_amrwbparse_src_event (GstPad * pad, GstEvent * event);
static GstFlowReturn gst_amrwbparse_chain (GstPad * pad, GstBuffer * buffer);
static void gst_amrwbparse_loop (GstPad * pad);
static gboolean gst_amrwbparse_sink_activate (GstPad * sinkpad);
static gboolean gst_amrwbparse_sink_activate_pull (GstPad * sinkpad,
gboolean active);
+static gboolean gst_amrwbparse_sink_activate_push (GstPad * sinkpad,
+ gboolean active);
static GstStateChangeReturn gst_amrwbparse_state_change (GstElement * element,
GstStateChange transition);
gst_pad_new_from_static_template (&sink_template, "sink");
gst_pad_set_chain_function (amrwbparse->sinkpad,
GST_DEBUG_FUNCPTR (gst_amrwbparse_chain));
-
+ gst_pad_set_event_function (amrwbparse->sinkpad,
+ GST_DEBUG_FUNCPTR (gst_amrwbparse_sink_event));
gst_pad_set_activate_function (amrwbparse->sinkpad,
gst_amrwbparse_sink_activate);
gst_pad_set_activatepull_function (amrwbparse->sinkpad,
gst_amrwbparse_sink_activate_pull);
-
+ gst_pad_set_activatepush_function (amrwbparse->sinkpad,
+ gst_amrwbparse_sink_activate_push);
gst_element_add_pad (GST_ELEMENT (amrwbparse), amrwbparse->sinkpad);
/* create the src pad */
amrwbparse->srcpad = gst_pad_new_from_static_template (&src_template, "src");
+ gst_pad_set_event_function (amrwbparse->srcpad,
+ GST_DEBUG_FUNCPTR (gst_amrwbparse_src_event));
gst_pad_set_query_function (amrwbparse->srcpad,
GST_DEBUG_FUNCPTR (gst_amrwbparse_query));
gst_pad_set_query_type_function (amrwbparse->srcpad,
{
static const GstQueryType list[] = {
GST_QUERY_POSITION,
+ GST_QUERY_DURATION,
0
};
}
+static gboolean
+gst_amrwbparse_handle_pull_seek (GstAmrwbParse * amrwbparse, GstPad * pad,
+ GstEvent * event)
+{
+ GstFormat format;
+ gdouble rate;
+ GstSeekFlags flags;
+ GstSeekType cur_type, stop_type;
+ gint64 cur, stop;
+ gint64 byte_cur = -1, byte_stop = -1;
+ gboolean flush;
+
+ gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
+ &stop_type, &stop);
+
+ GST_DEBUG_OBJECT (amrwbparse, "Performing seek to %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (cur));
+
+ /* For any format other than TIME, see if upstream handles
+ * it directly or fail. For TIME, try upstream, but do it ourselves if
+ * it fails upstream */
+ if (format != GST_FORMAT_TIME) {
+ return gst_pad_push_event (amrwbparse->sinkpad, event);
+ } else {
+ if (gst_pad_push_event (amrwbparse->sinkpad, event))
+ return TRUE;
+ }
+
+ flush = flags & GST_SEEK_FLAG_FLUSH;
+
+ /* send flush start */
+ if (flush)
+ gst_pad_push_event (amrwbparse->sinkpad, gst_event_new_flush_start ());
+ /* we only handle FLUSH seeks at the moment */
+ else
+ return FALSE;
+
+ /* grab streaming lock, this should eventually be possible, either
+ * because the task is paused or our streaming thread stopped
+ * because our peer is flushing. */
+ GST_PAD_STREAM_LOCK (amrwbparse->sinkpad);
+
+ /* Convert the TIME to the appropriate BYTE position at which to resume
+ * decoding. */
+ cur = cur / (20 * GST_MSECOND) * (20 * GST_MSECOND);
+ if (cur != -1)
+ byte_cur = amrwbparse->block * (cur / 20 / GST_MSECOND) + AMRWB_HEADER_SIZE;
+ if (stop != -1)
+ byte_stop =
+ amrwbparse->block * (stop / 20 / GST_MSECOND) + AMRWB_HEADER_SIZE;
+ amrwbparse->offset = byte_cur;
+ amrwbparse->ts = cur;
+
+ GST_DEBUG_OBJECT (amrwbparse, "Seeking to byte range %" G_GINT64_FORMAT
+ " to %" G_GINT64_FORMAT, byte_cur, cur);
+
+ /* and prepare to continue streaming */
+ /* send flush stop, peer will accept data and events again. We
+ * are not yet providing data as we still have the STREAM_LOCK. */
+ gst_pad_push_event (amrwbparse->sinkpad, gst_event_new_flush_stop ());
+ gst_pad_push_event (amrwbparse->srcpad, gst_event_new_new_segment (FALSE,
+ rate, format, cur, -1, cur));
+
+ /* and restart the task in case it got paused explicitely or by
+ * the FLUSH_START event we pushed out. */
+ gst_pad_start_task (amrwbparse->sinkpad,
+ (GstTaskFunction) gst_amrwbparse_loop, amrwbparse->sinkpad);
+
+ /* and release the lock again so we can continue streaming */
+ GST_PAD_STREAM_UNLOCK (amrwbparse->sinkpad);
+
+ return TRUE;
+}
+
+static gboolean
+gst_amrwbparse_handle_push_seek (GstAmrwbParse * amrwbparse, GstPad * pad,
+ GstEvent * event)
+{
+ GstFormat format;
+ gdouble rate;
+ GstSeekFlags flags;
+ GstSeekType cur_type, stop_type;
+ gint64 cur, stop;
+ gint64 byte_cur = -1, byte_stop = -1;
+
+ gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
+ &stop_type, &stop);
+
+ GST_DEBUG_OBJECT (amrwbparse, "Performing seek to %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (cur));
+
+ /* For any format other than TIME, see if upstream handles
+ * it directly or fail. For TIME, try upstream, but do it ourselves if
+ * it fails upstream */
+ if (format != GST_FORMAT_TIME) {
+ return gst_pad_push_event (amrwbparse->sinkpad, event);
+ } else {
+ if (gst_pad_push_event (amrwbparse->sinkpad, event))
+ return TRUE;
+ }
+
+ /* Convert the TIME to the appropriate BYTE position at which to resume
+ * decoding. */
+ cur = cur / (20 * GST_MSECOND) * (20 * GST_MSECOND);
+ if (cur != -1)
+ byte_cur = amrwbparse->block * (cur / 20 / GST_MSECOND) + AMRWB_HEADER_SIZE;
+ if (stop != -1)
+ byte_stop =
+ amrwbparse->block * (stop / 20 / GST_MSECOND) + AMRWB_HEADER_SIZE;
+ amrwbparse->ts = cur;
+
+ GST_DEBUG_OBJECT (amrwbparse, "Seeking to byte range %" G_GINT64_FORMAT
+ " to %" G_GINT64_FORMAT, byte_cur, byte_stop);
+
+ /* Send BYTE based seek upstream */
+ event = gst_event_new_seek (rate, GST_FORMAT_BYTES, flags, cur_type,
+ byte_cur, stop_type, byte_stop);
+
+ return gst_pad_push_event (amrwbparse->sinkpad, event);
+}
+
+static gboolean
+gst_amrwbparse_src_event (GstPad * pad, GstEvent * event)
+{
+ GstAmrwbParse *amrwbparse = GST_AMRWBPARSE (gst_pad_get_parent (pad));
+ gboolean res;
+
+ GST_DEBUG_OBJECT (amrwbparse, "handling event %d", GST_EVENT_TYPE (event));
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_SEEK:
+ if (amrwbparse->seek_handler)
+ res = amrwbparse->seek_handler (amrwbparse, pad, event);
+ else
+ res = FALSE;
+ break;
+ default:
+ res = gst_pad_push_event (amrwbparse->sinkpad, event);
+ break;
+ }
+ gst_object_unref (amrwbparse);
+
+ return res;
+}
+
+
/*
* Data reading.
*/
+static gboolean
+gst_amrwbparse_sink_event (GstPad * pad, GstEvent * event)
+{
+ GstAmrwbParse *amrwbparse;
+ gboolean res;
+
+ amrwbparse = GST_AMRWBPARSE (gst_pad_get_parent (pad));
+
+ GST_LOG ("handling event %d", GST_EVENT_TYPE (event));
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_FLUSH_START:
+ res = gst_pad_push_event (amrwbparse->srcpad, event);
+ break;
+ case GST_EVENT_FLUSH_STOP:
+ gst_adapter_clear (amrwbparse->adapter);
+ gst_segment_init (&amrwbparse->segment, GST_FORMAT_TIME);
+ res = gst_pad_push_event (amrwbparse->srcpad, event);
+ break;
+ case GST_EVENT_EOS:
+ res = gst_pad_push_event (amrwbparse->srcpad, event);
+ break;
+ case GST_EVENT_NEWSEGMENT:
+ {
+ /* eat for now, we send a newsegment at start with infinite
+ * duration. */
+ gst_event_unref (event);
+ res = TRUE;
+ break;
+ }
+ default:
+ res = gst_pad_push_event (amrwbparse->srcpad, event);
+ break;
+ }
+ gst_object_unref (amrwbparse);
+
+ return res;
+}
/* streaming mode */
static GstFlowReturn
gint mode;
const guint8 *data;
GstBuffer *out;
+ GstClockTime timestamp;
amrwbparse = GST_AMRWBPARSE (gst_pad_get_parent (pad));
+ timestamp = GST_BUFFER_TIMESTAMP (buffer);
+ if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
+ GST_DEBUG_OBJECT (amrwbparse, "Lock on timestamp %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (timestamp));
+ amrwbparse->ts = timestamp;
+ }
+
gst_adapter_push (amrwbparse->adapter, buffer);
/* init */
GstEvent *segev;
GstCaps *caps;
- if (gst_adapter_available (amrwbparse->adapter) < 9)
+ if (gst_adapter_available (amrwbparse->adapter) < AMRWB_HEADER_SIZE)
goto done;
- data = gst_adapter_peek (amrwbparse->adapter, 9);
- if (memcmp (data, "#!AMR-WB\n", 9) != 0)
+ data = gst_adapter_peek (amrwbparse->adapter, AMRWB_HEADER_SIZE);
+ if (memcmp (data, AMRWB_HEADER_STR, AMRWB_HEADER_SIZE) != 0)
goto done;
- gst_adapter_flush (amrwbparse->adapter, 9);
+ gst_adapter_flush (amrwbparse->adapter, AMRWB_HEADER_SIZE);
amrwbparse->need_header = FALSE;
gst_amrwbparse_pull_header (GstAmrwbParse * amrwbparse)
{
GstBuffer *buffer;
- gboolean ret = TRUE;
+ GstFlowReturn ret;
guint8 *data;
gint size;
- const guint8 magic_number_size = 9; /* sizeof("#!AMR-WB\n")-1 */
- if (GST_FLOW_OK != gst_pad_pull_range (amrwbparse->sinkpad,
- amrwbparse->offset, magic_number_size, &buffer)) {
- ret = FALSE;
- goto done;
- }
+ ret = gst_pad_pull_range (amrwbparse->sinkpad, G_GUINT64_CONSTANT (0),
+ AMRWB_HEADER_SIZE, &buffer);
+ if (ret != GST_FLOW_OK)
+ return FALSE;
data = GST_BUFFER_DATA (buffer);
size = GST_BUFFER_SIZE (buffer);
- if (size < magic_number_size) {
- /* not enough */
- ret = FALSE;
- goto done;
- }
-
- if (memcmp (data, "#!AMR-WB\n", magic_number_size)) {
- /* no header */
- ret = FALSE;
- goto done;
- }
+ if (size < AMRWB_HEADER_SIZE)
+ goto not_enough;
- amrwbparse->offset += magic_number_size;
-
-done:
+ if (memcmp (data, AMRWB_HEADER_STR, AMRWB_HEADER_SIZE))
+ goto no_header;
gst_buffer_unref (buffer);
- return ret;
+ amrwbparse->offset = AMRWB_HEADER_SIZE;
+ return TRUE;
+
+not_enough:
+ {
+ gst_buffer_unref (buffer);
+ return FALSE;
+ }
+no_header:
+ {
+ gst_buffer_unref (buffer);
+ return FALSE;
+ }
}
/* random access mode, could just read a fixed size buffer and push it to
/* init */
if (G_UNLIKELY (amrwbparse->need_header)) {
+ GstCaps *caps;
if (!gst_amrwbparse_pull_header (amrwbparse)) {
GST_ELEMENT_ERROR (amrwbparse, STREAM, WRONG_TYPE, (NULL), (NULL));
goto need_pause;
}
+ caps = gst_caps_new_simple ("audio/AMR-WB",
+ "rate", G_TYPE_INT, 16000, "channels", G_TYPE_INT, 1, NULL);
+ gst_pad_set_caps (amrwbparse->srcpad, caps);
+ gst_caps_unref (caps);
+
GST_DEBUG_OBJECT (amrwbparse, "Sending newsegment event");
gst_pad_push_event (amrwbparse->srcpad,
gst_event_new_new_segment_full (FALSE, 1.0, 1.0,
amrwbparse->need_header = FALSE;
}
- ret = gst_pad_pull_range (amrwbparse->sinkpad,
- amrwbparse->offset, 1, &buffer);
+ ret =
+ gst_pad_pull_range (amrwbparse->sinkpad, amrwbparse->offset, 1, &buffer);
if (ret == GST_FLOW_UNEXPECTED)
goto eos;
static gboolean
gst_amrwbparse_sink_activate (GstPad * sinkpad)
{
+ gboolean result = FALSE;
GstAmrwbParse *amrwbparse;
- amrwbparse = GST_AMRWBPARSE (GST_PAD_PARENT (sinkpad));
+ amrwbparse = GST_AMRWBPARSE (gst_pad_get_parent (sinkpad));
+
if (gst_pad_check_pull_range (sinkpad)) {
- return gst_pad_activate_pull (sinkpad, TRUE);
+ GST_DEBUG ("Trying to activate in pull mode");
+ amrwbparse->seekable = TRUE;
+ amrwbparse->ts = 0;
+ result = gst_pad_activate_pull (sinkpad, TRUE);
} else {
+ GST_DEBUG ("Try to activate in push mode");
amrwbparse->seekable = FALSE;
- return gst_pad_activate_push (sinkpad, TRUE);
+ result = gst_pad_activate_push (sinkpad, TRUE);
}
+
+ gst_object_unref (amrwbparse);
+ return result;
}
+
+static gboolean
+gst_amrwbparse_sink_activate_push (GstPad * sinkpad, gboolean active)
+{
+ GstAmrwbParse *amrwbparse = GST_AMRWBPARSE (gst_pad_get_parent (sinkpad));
+
+ if (active) {
+ amrwbparse->seek_handler = gst_amrwbparse_handle_push_seek;
+ } else {
+ amrwbparse->seek_handler = NULL;
+ }
+
+ gst_object_unref (amrwbparse);
+ return TRUE;
+}
+
static gboolean
gst_amrwbparse_sink_activate_pull (GstPad * sinkpad, gboolean active)
{
gboolean result;
GstAmrwbParse *amrwbparse;
- amrwbparse = GST_AMRWBPARSE (GST_PAD_PARENT (sinkpad));
+ amrwbparse = GST_AMRWBPARSE (gst_pad_get_parent (sinkpad));
if (active) {
- amrwbparse->need_header = TRUE;
- amrwbparse->seekable = TRUE;
- amrwbparse->ts = 0;
- /* if we have a scheduler we can start the task */
+ amrwbparse->seek_handler = gst_amrwbparse_handle_pull_seek;
result = gst_pad_start_task (sinkpad,
(GstTaskFunction) gst_amrwbparse_loop, sinkpad);
} else {
+ amrwbparse->seek_handler = NULL;
result = gst_pad_stop_task (sinkpad);
}
+ gst_object_unref (amrwbparse);
return result;
}
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
+ amrwbparse->need_header = TRUE;
+ amrwbparse->ts = -1;
+ amrwbparse->block = 0;
+ gst_segment_init (&amrwbparse->segment, GST_FORMAT_TIME);
break;
default:
break;
projects / platform / upstream / gstreamer.git / commitdiff