* @short_description: Base class for getrange based source elements
* @see_also: #GstPushSrc, #GstBaseTransform, #GstBaseSink
*
- * This is a generice base class for source elements. The following
+ * This is a generic base class for source elements. The following
* types of sources are supported:
* <itemizedlist>
* <listitem><para>random access sources like files</para></listitem>
*
* The source can be configured to operate in any #GstFormat with the
* gst_base_src_set_format() method. The currently set format determines
- * the format of the internal #GstSegment and any #GST_EVENT_NEWSEGMENT
- * events. The default format for #GstBaseSrc is #GST_FORMAT_BYTES.
+ * the format of the internal #GstSegment and any %GST_EVENT_SEGMENT
+ * events. The default format for #GstBaseSrc is %GST_FORMAT_BYTES.
*
* #GstBaseSrc always supports push mode scheduling. If the following
* conditions are met, it also supports pull mode scheduling:
* <itemizedlist>
- * <listitem><para>The format is set to #GST_FORMAT_BYTES (default).</para>
+ * <listitem><para>The format is set to %GST_FORMAT_BYTES (default).</para>
* </listitem>
* <listitem><para>#GstBaseSrcClass.is_seekable() returns %TRUE.</para>
* </listitem>
* If all the conditions are met for operating in pull mode, #GstBaseSrc is
* automatically seekable in push mode as well. The following conditions must
* be met to make the element seekable in push mode when the format is not
- * #GST_FORMAT_BYTES:
+ * %GST_FORMAT_BYTES:
* <itemizedlist>
* <listitem><para>
* #GstBaseSrcClass.is_seekable() returns %TRUE.
* #GstBaseSrcClass.create() method will not be called in PAUSED but only in
* PLAYING. To signal the pipeline that the element will not produce data, the
* return value from the READY to PAUSED state will be
- * #GST_STATE_CHANGE_NO_PREROLL.
+ * %GST_STATE_CHANGE_NO_PREROLL.
*
* A typical live source will timestamp the buffers it creates with the
* current running time of the pipeline. This is one reason why a live source
* There is only support in #GstBaseSrc for exactly one source pad, which
* should be named "src". A source implementation (subclass of #GstBaseSrc)
* should install a pad template in its class_init function, like so:
- * |[
+ * |[<!-- language="C" -->
* static void
* my_element_class_init (GstMyElementClass *klass)
* {
* GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
* // srctemplate should be a #GstStaticPadTemplate with direction
- * // #GST_PAD_SRC and name "src"
- * gst_element_class_add_pad_template (gstelement_class,
- * gst_static_pad_template_get (&srctemplate));
+ * // %GST_PAD_SRC and name "src"
+ * gst_element_class_add_static_pad_template (gstelement_class, &srctemplate);
*
* gst_element_class_set_static_metadata (gstelement_class,
* "Source name",
*
* An application may send an EOS event to a source element to make it
* perform the EOS logic (send EOS event downstream or post a
- * #GST_MESSAGE_SEGMENT_DONE on the bus). This can typically be done
+ * %GST_MESSAGE_SEGMENT_DONE on the bus). This can typically be done
* with the gst_element_send_event() function on the element or its parent bin.
*
* After the EOS has been sent to the element, the application should wait for
* an EOS message to be posted on the pipeline's bus. Once this EOS message is
* received, it may safely shut down the entire pipeline.
- *
- * Last reviewed on 2007-12-19 (0.10.16)
* </para>
* </refsect2>
*/
#define GST_ASYNC_WAIT(elem) g_cond_wait (GST_ASYNC_GET_COND (elem), GST_OBJECT_GET_LOCK (elem))
#define GST_ASYNC_SIGNAL(elem) g_cond_signal (GST_ASYNC_GET_COND (elem));
+#define CLEAR_PENDING_EOS(bsrc) \
+ G_STMT_START { \
+ g_atomic_int_set (&bsrc->priv->has_pending_eos, FALSE); \
+ gst_event_replace (&bsrc->priv->pending_eos, NULL); \
+ } G_STMT_END
+
/* BaseSrc signals and args */
enum
/* if a stream-start event should be sent */
gboolean stream_start_pending;
- /* if segment should be sent */
+ /* if segment should be sent and a
+ * seqnum if it was originated by a seek */
gboolean segment_pending;
+ guint32 segment_seqnum;
/* if EOS is pending (atomic) */
- gint pending_eos;
+ GstEvent *pending_eos;
+ gint has_pending_eos;
+
+ /* if the eos was caused by a forced eos from the application */
+ gboolean forced_eos;
/* startup latency is the time it takes between going to PLAYING and producing
* the first BUFFER with running_time 0. This value is included in the latency
gboolean do_timestamp;
volatile gint dynamic_size;
+ volatile gint automatic_eos;
/* stream sequence number */
guint32 seqnum;
static gboolean gst_base_src_seekable (GstBaseSrc * src);
static gboolean gst_base_src_negotiate (GstBaseSrc * basesrc);
static gboolean gst_base_src_update_length (GstBaseSrc * src, guint64 offset,
- guint * length);
+ guint * length, gboolean force);
static void
gst_base_src_class_init (GstBaseSrcClass * klass)
g_cond_init (&basesrc->live_cond);
basesrc->num_buffers = DEFAULT_NUM_BUFFERS;
basesrc->num_buffers_left = -1;
+ basesrc->priv->automatic_eos = TRUE;
basesrc->can_activate_push = TRUE;
* and call this method before continuing to produce the remaining data.
*
* This function will block until a state change to PLAYING happens (in which
- * case this function returns #GST_FLOW_OK) or the processing must be stopped due
+ * case this function returns %GST_FLOW_OK) or the processing must be stopped due
* to a state change to READY or a FLUSH event (in which case this function
- * returns #GST_FLOW_FLUSHING).
+ * returns %GST_FLOW_FLUSHING).
*
- * Returns: #GST_FLOW_OK if @src is PLAYING and processing can
+ * Returns: %GST_FLOW_OK if @src is PLAYING and processing can
* continue. Any other return value should be returned from the create vmethod.
*/
GstFlowReturn
* @format: the format to use
*
* Sets the default format of the source. This will be the format used
- * for sending NEW_SEGMENT events and for performing seeks.
+ * for sending SEGMENT events and for performing seeks.
*
* If a format of GST_FORMAT_BYTES is set, the element will be able to
- * operate in pull mode if the #GstBaseSrcClass.is_seekable() returns TRUE.
+ * operate in pull mode if the #GstBaseSrcClass.is_seekable() returns %TRUE.
*
* This function must only be called in states < %GST_STATE_PAUSED.
*/
}
/**
+ * gst_base_src_set_automatic_eos:
+ * @src: base source instance
+ * @automatic_eos: automatic eos
+ *
+ * If @automatic_eos is %TRUE, @src will automatically go EOS if a buffer
+ * after the total size is returned. By default this is %TRUE but sources
+ * that can't return an authoritative size and only know that they're EOS
+ * when trying to read more should set this to %FALSE.
+ *
+ * Since: 1.4
+ */
+void
+gst_base_src_set_automatic_eos (GstBaseSrc * src, gboolean automatic_eos)
+{
+ g_return_if_fail (GST_IS_BASE_SRC (src));
+
+ g_atomic_int_set (&src->priv->automatic_eos, automatic_eos);
+}
+
+/**
* gst_base_src_set_async:
* @src: base source instance
* @async: new async mode
* @min_latency: (out) (allow-none): the min latency of the source
* @max_latency: (out) (allow-none): the max latency of the source
*
- * Query the source for the latency parameters. @live will be TRUE when @src is
- * configured as a live source. @min_latency will be set to the difference
- * between the running time and the timestamp of the first buffer.
- * @max_latency is always the undefined value of -1.
+ * Query the source for the latency parameters. @live will be %TRUE when @src is
+ * configured as a live source. @min_latency and @max_latency will be set
+ * to the difference between the running time and the timestamp of the first
+ * buffer.
*
* This function is mostly used by subclasses.
*
- * Returns: TRUE if the query succeeded.
+ * Returns: %TRUE if the query succeeded.
*/
gboolean
gst_base_src_query_latency (GstBaseSrc * src, gboolean * live,
if (min_latency)
*min_latency = min;
if (max_latency)
- *max_latency = -1;
+ *max_latency = min;
GST_LOG_OBJECT (src, "latency: live %d, min %" GST_TIME_FORMAT
", max %" GST_TIME_FORMAT, src->is_live, GST_TIME_ARGS (min),
- GST_TIME_ARGS (-1));
+ GST_TIME_ARGS (min));
GST_OBJECT_UNLOCK (src);
return TRUE;
GST_OBJECT_LOCK (src);
src->priv->do_timestamp = timestamp;
+ if (timestamp && src->segment.format != GST_FORMAT_TIME)
+ gst_segment_init (&src->segment, GST_FORMAT_TIME);
GST_OBJECT_UNLOCK (src);
}
* @src: The source
* @start: The new start value for the segment
* @stop: Stop value for the new segment
- * @time: The new time value for the start of the new segent
+ * @time: The new time value for the start of the new segment
*
* Prepare a new seamless segment for emission downstream. This function must
* only be called by derived sub-classes, and only from the create() function,
/* Mark pending segment. Will be sent before next data */
src->priv->segment_pending = TRUE;
+ src->priv->segment_seqnum = gst_util_seqnum_next ();
GST_DEBUG_OBJECT (src,
"Starting new seamless segment. Start %" GST_TIME_FORMAT " stop %"
if (src->priv->stream_start_pending) {
gchar *stream_id;
+ GstEvent *event;
stream_id =
gst_pad_create_stream_id (src->srcpad, GST_ELEMENT_CAST (src), NULL);
GST_DEBUG_OBJECT (src, "Pushing STREAM_START");
- ret =
- gst_pad_push_event (src->srcpad,
- gst_event_new_stream_start (stream_id));
+ event = gst_event_new_stream_start (stream_id);
+ gst_event_set_group_id (event, gst_util_group_id_next ());
+
+ ret = gst_pad_push_event (src->srcpad, event);
src->priv->stream_start_pending = FALSE;
g_free (stream_id);
}
/**
* gst_base_src_set_caps:
* @src: a #GstBaseSrc
- * @caps: a #GstCaps
+ * @caps: (transfer none): a #GstCaps
*
* Set new caps on the basesrc source pad.
*
{
GstBaseSrcClass *bclass;
gboolean res = TRUE;
+ GstCaps *current_caps;
bclass = GST_BASE_SRC_GET_CLASS (src);
gst_base_src_send_stream_start (src);
- if (bclass->set_caps)
- res = bclass->set_caps (src, caps);
+ current_caps = gst_pad_get_current_caps (GST_BASE_SRC_PAD (src));
+ if (current_caps && gst_caps_is_equal (current_caps, caps)) {
+ GST_DEBUG_OBJECT (src, "New caps equal to old ones: %" GST_PTR_FORMAT,
+ caps);
+ res = TRUE;
+ } else {
+ if (bclass->set_caps)
+ res = bclass->set_caps (src, caps);
+
+ if (res)
+ res = gst_pad_push_event (src->srcpad, gst_event_new_caps (caps));
+ }
- if (res)
- res = gst_pad_set_caps (src->srcpad, caps);
+ if (current_caps)
+ gst_caps_unref (current_caps);
return res;
}
} else
res = TRUE;
- gst_query_set_position (query, format, position);
+ if (res)
+ gst_query_set_position (query, format, position);
+
break;
}
}
guint length = 0;
/* may have to refresh duration */
- if (g_atomic_int_get (&src->priv->dynamic_size))
- gst_base_src_update_length (src, 0, &length);
+ gst_base_src_update_length (src, 0, &length,
+ g_atomic_int_get (&src->priv->dynamic_size));
/* this is the duration as configured by the subclass. */
GST_OBJECT_LOCK (src);
* means that we cannot report the duration at all. */
res = TRUE;
}
- gst_query_set_duration (query, format, duration);
+
+ if (res)
+ gst_query_set_duration (query, format, duration);
+
break;
}
}
gst_base_src_seekable (src), 0, duration);
res = TRUE;
} else {
- /* FIXME 0.11: return TRUE + seekable=FALSE for SEEKING query here */
+ /* FIXME 2.0: return TRUE + seekable=FALSE for SEEKING query here */
/* Don't reply to the query to make up for demuxers which don't
* handle the SEEKING query yet. Players like Totem will fall back
* to the duration when the SEEKING query isn't answered. */
}
case GST_QUERY_SEGMENT:
{
+ GstFormat format;
gint64 start, stop;
GST_OBJECT_LOCK (src);
- /* no end segment configured, current duration then */
+
+ format = src->segment.format;
+
+ start =
+ gst_segment_to_stream_time (&src->segment, format,
+ src->segment.start);
if ((stop = src->segment.stop) == -1)
stop = src->segment.duration;
- start = src->segment.start;
+ else
+ stop = gst_segment_to_stream_time (&src->segment, format, stop);
- /* adjust to stream time */
- if (src->segment.time != -1) {
- start -= src->segment.time;
- if (stop != -1)
- stop -= src->segment.time;
- }
+ gst_query_set_segment (query, src->segment.rate, format, start, stop);
- gst_query_set_segment (query, src->segment.rate, src->segment.format,
- start, stop);
GST_OBJECT_UNLOCK (src);
res = TRUE;
break;
bclass = GST_BASE_SRC_GET_CLASS (src);
+ GST_INFO_OBJECT (src, "seeking: %" GST_SEGMENT_FORMAT, segment);
+
if (bclass->do_seek)
result = bclass->do_seek (src, segment);
gst_element_post_message (GST_ELEMENT (src), message);
}
- /* for deriving a stop position for the playback segment from the seek
- * segment, we must take the duration when the stop is not set */
- if ((stop = seeksegment.stop) == -1)
- stop = seeksegment.duration;
-
src->priv->segment_pending = TRUE;
+ src->priv->segment_seqnum = seqnum;
}
src->priv->discont = TRUE;
{
GstBaseSrc *src;
gboolean result = FALSE;
+ GstBaseSrcClass *bclass;
src = GST_BASE_SRC (element);
+ bclass = GST_BASE_SRC_GET_CLASS (src);
GST_DEBUG_OBJECT (src, "handling event %p %" GST_PTR_FORMAT, event, event);
case GST_EVENT_FLUSH_START:
GST_DEBUG_OBJECT (src, "pushing flush-start event downstream");
result = gst_pad_push_event (src->srcpad, event);
+ /* also unblock the create function */
+ gst_base_src_activate_pool (src, FALSE);
+ /* unlock any subclasses, we need to do this before grabbing the
+ * LIVE_LOCK since we hold this lock before going into ::create. We pass an
+ * unlock to the params because of backwards compat (see seek handler)*/
+ if (bclass->unlock)
+ bclass->unlock (src);
+
+ /* the live lock is released when we are blocked, waiting for playing or
+ * when we sync to the clock. */
+ GST_LIVE_LOCK (src);
+ src->priv->flushing = TRUE;
+ /* clear pending EOS if any */
+ if (g_atomic_int_get (&src->priv->has_pending_eos)) {
+ GST_OBJECT_LOCK (src);
+ CLEAR_PENDING_EOS (src);
+ src->priv->forced_eos = FALSE;
+ GST_OBJECT_UNLOCK (src);
+ }
+ if (bclass->unlock_stop)
+ bclass->unlock_stop (src);
+ if (src->clock_id)
+ gst_clock_id_unschedule (src->clock_id);
+ GST_DEBUG_OBJECT (src, "signal");
+ GST_LIVE_SIGNAL (src);
+ GST_LIVE_UNLOCK (src);
event = NULL;
break;
case GST_EVENT_FLUSH_STOP:
- GST_LIVE_LOCK (src->srcpad);
+ {
+ gboolean start;
+
+ GST_LIVE_LOCK (src);
src->priv->segment_pending = TRUE;
- /* sending random flushes downstream can break stuff,
- * especially sync since all segment info will get flushed */
+ src->priv->flushing = FALSE;
GST_DEBUG_OBJECT (src, "pushing flush-stop event downstream");
result = gst_pad_push_event (src->srcpad, event);
- GST_LIVE_UNLOCK (src->srcpad);
+
+ gst_base_src_activate_pool (src, TRUE);
+
+ GST_OBJECT_LOCK (src->srcpad);
+ start = (GST_PAD_MODE (src->srcpad) == GST_PAD_MODE_PUSH);
+ GST_OBJECT_UNLOCK (src->srcpad);
+
+ if (src->is_live) {
+ if (!src->live_running)
+ start = FALSE;
+ }
+
+ if (start)
+ gst_pad_start_task (src->srcpad, (GstTaskFunction) gst_base_src_loop,
+ src->srcpad, NULL);
+ GST_LIVE_UNLOCK (src);
event = NULL;
break;
+ }
/* downstream serialized events */
case GST_EVENT_EOS:
{
- GstBaseSrcClass *bclass;
-
- bclass = GST_BASE_SRC_GET_CLASS (src);
-
/* queue EOS and make sure the task or pull function performs the EOS
* actions.
*
* We have two possibilities:
*
- * - Before we are to enter the _create function, we check the pending_eos
+ * - Before we are to enter the _create function, we check the has_pending_eos
* first and do EOS instead of entering it.
* - If we are in the _create function or we did not manage to set the
* flag fast enough and we are about to enter the _create function,
* we unlock it so that we exit with FLUSHING immediately. We then
* check the EOS flag and do the EOS logic.
*/
- g_atomic_int_set (&src->priv->pending_eos, TRUE);
- GST_DEBUG_OBJECT (src, "EOS marked, calling unlock");
+ GST_OBJECT_LOCK (src);
+ g_atomic_int_set (&src->priv->has_pending_eos, TRUE);
+ if (src->priv->pending_eos)
+ gst_event_unref (src->priv->pending_eos);
+ src->priv->pending_eos = event;
+ event = NULL;
+ GST_OBJECT_UNLOCK (src);
+ GST_DEBUG_OBJECT (src, "EOS marked, calling unlock");
- /* unlock the _create function so that we can check the pending_eos flag
+ /* unlock the _create function so that we can check the has_pending_eos flag
* and we can do EOS. This will eventually release the LIVE_LOCK again so
* that we can grab it and stop the unlock again. We don't take the stream
* lock so that this operation is guaranteed to never block. */
case GST_EVENT_TAG:
case GST_EVENT_CUSTOM_DOWNSTREAM:
case GST_EVENT_CUSTOM_BOTH:
- /* Insert TAG, CUSTOM_DOWNSTREAM, CUSTOM_BOTH in the dataflow */
+ case GST_EVENT_PROTECTION:
+ /* Insert TAG, CUSTOM_DOWNSTREAM, CUSTOM_BOTH, PROTECTION in the dataflow */
GST_OBJECT_LOCK (src);
src->priv->pending_events =
g_list_append (src->priv->pending_events, event);
if (!GST_CLOCK_TIME_IS_VALID (dts)) {
if (do_timestamp) {
dts = running_time;
- } else {
- dts = 0;
+ } else if (!GST_CLOCK_TIME_IS_VALID (pts)) {
+ if (GST_CLOCK_TIME_IS_VALID (basesrc->segment.start)) {
+ dts = basesrc->segment.start;
+ } else {
+ dts = 0;
+ }
}
GST_BUFFER_DTS (buffer) = dts;
/* Called with STREAM_LOCK and LIVE_LOCK */
static gboolean
-gst_base_src_update_length (GstBaseSrc * src, guint64 offset, guint * length)
+gst_base_src_update_length (GstBaseSrc * src, guint64 offset, guint * length,
+ gboolean force)
{
guint64 size, maxsize;
GstBaseSrcClass *bclass;
- GstFormat format;
gint64 stop;
- gboolean dynamic;
+
+ /* only operate if we are working with bytes */
+ if (src->segment.format != GST_FORMAT_BYTES)
+ return TRUE;
bclass = GST_BASE_SRC_GET_CLASS (src);
- format = src->segment.format;
stop = src->segment.stop;
/* get total file size */
size = src->segment.duration;
- /* only operate if we are working with bytes */
- if (format != GST_FORMAT_BYTES)
- return TRUE;
-
- /* the max amount of bytes to read is the total size or
- * up to the segment.stop if present. */
- if (stop != -1)
- maxsize = MIN (size, stop);
+ /* when not doing automatic EOS, just use the stop position. We don't use
+ * the size to check for EOS */
+ if (!g_atomic_int_get (&src->priv->automatic_eos))
+ maxsize = stop;
+ /* Otherwise, the max amount of bytes to read is the total
+ * size or up to the segment.stop if present. */
+ else if (stop != -1)
+ maxsize = size != -1 ? MIN (size, stop) : stop;
else
maxsize = size;
", segment.stop %" G_GINT64_FORMAT ", maxsize %" G_GINT64_FORMAT, offset,
*length, size, stop, maxsize);
- dynamic = g_atomic_int_get (&src->priv->dynamic_size);
- GST_DEBUG_OBJECT (src, "dynamic size: %d", dynamic);
-
/* check size if we have one */
if (maxsize != -1) {
/* if we run past the end, check if the file became bigger and
- * retry. */
- if (G_UNLIKELY (offset + *length >= maxsize || dynamic)) {
+ * retry. Mind wrap when checking. */
+ if (G_UNLIKELY (offset >= maxsize || offset + *length >= maxsize || force)) {
/* see if length of the file changed */
if (bclass->get_size)
if (!bclass->get_size (src, &size))
size = -1;
- /* make sure we don't exceed the configured segment stop
- * if it was set */
- if (stop != -1)
- maxsize = MIN (size, stop);
+ /* when not doing automatic EOS, just use the stop position. We don't use
+ * the size to check for EOS */
+ if (!g_atomic_int_get (&src->priv->automatic_eos))
+ maxsize = stop;
+ /* Otherwise, the max amount of bytes to read is the total
+ * size or up to the segment.stop if present. */
+ else if (stop != -1)
+ maxsize = size != -1 ? MIN (size, stop) : stop;
else
maxsize = size;
- /* if we are at or past the end, EOS */
- if (G_UNLIKELY (offset >= maxsize))
- goto unexpected_length;
-
- /* else we can clip to the end */
- if (G_UNLIKELY (offset + *length >= maxsize))
- *length = maxsize - offset;
+ if (maxsize != -1) {
+ /* if we are at or past the end, EOS */
+ if (G_UNLIKELY (offset >= maxsize))
+ goto unexpected_length;
+ /* else we can clip to the end */
+ if (G_UNLIKELY (offset + *length >= maxsize))
+ *length = maxsize - offset;
+ }
}
}
- /* keep track of current duration.
- * segment is in bytes, we checked that above. */
+ /* keep track of current duration. segment is in bytes, we checked
+ * that above. */
GST_OBJECT_LOCK (src);
src->segment.duration = size;
GST_OBJECT_UNLOCK (src);
/* ERRORS */
unexpected_length:
{
+ GST_WARNING_OBJECT (src, "processing at or past EOS");
return FALSE;
}
}
if (G_UNLIKELY (!bclass->create))
goto no_function;
- if (G_UNLIKELY (!gst_base_src_update_length (src, offset, &length)))
+ if (G_UNLIKELY (!gst_base_src_update_length (src, offset, &length, FALSE)))
goto unexpected_length;
/* track position */
}
/* don't enter the create function if a pending EOS event was set. For the
- * logic of the pending_eos, check the event function of this class. */
- if (G_UNLIKELY (g_atomic_int_get (&src->priv->pending_eos)))
+ * logic of the has_pending_eos, check the event function of this class. */
+ if (G_UNLIKELY (g_atomic_int_get (&src->priv->has_pending_eos))) {
+ src->priv->forced_eos = TRUE;
goto eos;
+ }
GST_DEBUG_OBJECT (src,
"calling create offset %" G_GUINT64_FORMAT " length %u, time %"
/* The create function could be unlocked because we have a pending EOS. It's
* possible that we have a valid buffer from create that we need to
* discard when the create function returned _OK. */
- if (G_UNLIKELY (g_atomic_int_get (&src->priv->pending_eos))) {
+ if (G_UNLIKELY (g_atomic_int_get (&src->priv->has_pending_eos))) {
if (ret == GST_FLOW_OK) {
if (*buf == NULL)
gst_buffer_unref (res_buf);
}
+ src->priv->forced_eos = TRUE;
goto eos;
}
GST_CAT_DEBUG_OBJECT (GST_CAT_PERFORMANCE, src, "create function didn't "
"fill the provided buffer, copying");
- gst_buffer_map (in_buf, &info, GST_MAP_WRITE);
+ if (!gst_buffer_map (in_buf, &info, GST_MAP_WRITE))
+ goto map_failed;
+
copied_size = gst_buffer_extract (res_buf, 0, info.data, info.size);
gst_buffer_unmap (in_buf, &info);
gst_buffer_set_size (in_buf, copied_size);
gst_flow_get_name (ret));
return ret;
}
+map_failed:
+ {
+ GST_ELEMENT_ERROR (src, RESOURCE, BUSY,
+ (_("Failed to map buffer.")),
+ ("failed to map result buffer in WRITE mode"));
+ if (*buf == NULL)
+ gst_buffer_unref (res_buf);
+ return GST_FLOW_ERROR;
+ }
not_started:
{
GST_DEBUG_OBJECT (src, "getrange but not started");
src = GST_BASE_SRC (GST_OBJECT_PARENT (pad));
+ /* Just leave immediately if we're flushing */
+ GST_LIVE_LOCK (src);
+ if (G_UNLIKELY (src->priv->flushing || GST_PAD_IS_FLUSHING (pad)))
+ goto flushing;
+ GST_LIVE_UNLOCK (src);
+
gst_base_src_send_stream_start (src);
+ /* The stream-start event could've caused something to flush us */
+ GST_LIVE_LOCK (src);
+ if (G_UNLIKELY (src->priv->flushing || GST_PAD_IS_FLUSHING (pad)))
+ goto flushing;
+ GST_LIVE_UNLOCK (src);
+
/* check if we need to renegotiate */
if (gst_pad_check_reconfigure (pad)) {
- if (!gst_base_src_negotiate (src))
- goto not_negotiated;
+ if (!gst_base_src_negotiate (src)) {
+ gst_pad_mark_reconfigure (pad);
+ if (GST_PAD_IS_FLUSHING (pad)) {
+ GST_LIVE_LOCK (src);
+ goto flushing;
+ } else {
+ goto negotiate_failed;
+ }
+ }
}
GST_LIVE_LOCK (src);
- if (G_UNLIKELY (src->priv->flushing))
+ if (G_UNLIKELY (src->priv->flushing || GST_PAD_IS_FLUSHING (pad)))
goto flushing;
blocksize = src->blocksize;
/* push events to close/start our segment before we push the buffer. */
if (G_UNLIKELY (src->priv->segment_pending)) {
- gst_pad_push_event (pad, gst_event_new_segment (&src->segment));
+ GstEvent *seg_event = gst_event_new_segment (&src->segment);
+
+ gst_event_set_seqnum (seg_event, src->priv->segment_seqnum);
+ src->priv->segment_seqnum = gst_util_seqnum_next ();
+ gst_pad_push_event (pad, seg_event);
src->priv->segment_pending = FALSE;
}
goto pause;
}
- if (G_UNLIKELY (eos)) {
+ /* Segment pending means that a new segment was configured
+ * during this loop run */
+ if (G_UNLIKELY (eos && !src->priv->segment_pending)) {
GST_INFO_OBJECT (src, "pausing after end of segment");
ret = GST_FLOW_EOS;
goto pause;
GST_DEBUG_OBJECT (src, "Retrying to renegotiate");
return;
}
- GST_DEBUG_OBJECT (src, "Failed to renegotiate");
+ /* fallthrough when push returns NOT_NEGOTIATED and we don't have
+ * a pending negotiation request on our srcpad */
+ }
+negotiate_failed:
+ {
+ GST_DEBUG_OBJECT (src, "Not negotiated");
ret = GST_FLOW_NOT_NEGOTIATED;
goto pause;
}
GstFormat format;
gint64 position;
- /* perform EOS logic */
flag_segment = (src->segment.flags & GST_SEGMENT_FLAG_SEGMENT) != 0;
format = src->segment.format;
position = src->segment.position;
- if (flag_segment) {
+ /* perform EOS logic */
+ if (src->priv->forced_eos) {
+ g_assert (g_atomic_int_get (&src->priv->has_pending_eos));
+ GST_OBJECT_LOCK (src);
+ event = src->priv->pending_eos;
+ src->priv->pending_eos = NULL;
+ GST_OBJECT_UNLOCK (src);
+
+ } else if (flag_segment) {
GstMessage *message;
message = gst_message_new_segment_done (GST_OBJECT_CAST (src),
gst_element_post_message (GST_ELEMENT_CAST (src), message);
event = gst_event_new_segment_done (format, position);
gst_event_set_seqnum (event, src->priv->seqnum);
- gst_pad_push_event (pad, event);
+
} else {
event = gst_event_new_eos ();
gst_event_set_seqnum (event, src->priv->seqnum);
- gst_pad_push_event (pad, event);
}
+
+ gst_pad_push_event (pad, event);
+ src->priv->forced_eos = FALSE;
+
} else if (ret == GST_FLOW_NOT_LINKED || ret <= GST_FLOW_EOS) {
event = gst_event_new_eos ();
gst_event_set_seqnum (event, src->priv->seqnum);
* due to flushing and posting an error message because of
* that is the wrong thing to do, e.g. when we're doing
* a flushing seek. */
- GST_ELEMENT_ERROR (src, STREAM, FAILED,
- (_("Internal data flow error.")),
- ("streaming task paused, reason %s (%d)", reason, ret));
+ GST_ELEMENT_FLOW_ERROR (src, ret);
gst_pad_push_event (pad, event);
}
goto done;
oldalloc = priv->allocator;
priv->allocator = allocator;
+ if (priv->pool)
+ gst_object_ref (priv->pool);
+ if (priv->allocator)
+ gst_object_ref (priv->allocator);
+
if (params)
priv->params = *params;
else
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, outcaps, size, min, max);
gst_buffer_pool_config_set_allocator (config, allocator, ¶ms);
- gst_buffer_pool_set_config (pool, config);
+
+ /* buffer pool may have to do some changes */
+ if (!gst_buffer_pool_set_config (pool, config)) {
+ config = gst_buffer_pool_get_config (pool);
+
+ /* If change are not acceptable, fallback to generic pool */
+ if (!gst_buffer_pool_config_validate_params (config, outcaps, size, min,
+ max)) {
+ GST_DEBUG_OBJECT (basesrc, "unsupported pool, making new pool");
+
+ gst_object_unref (pool);
+ pool = gst_buffer_pool_new ();
+ gst_buffer_pool_config_set_params (config, outcaps, size, min, max);
+ gst_buffer_pool_config_set_allocator (config, allocator, ¶ms);
+ }
+
+ if (!gst_buffer_pool_set_config (pool, config))
+ goto config_failed;
+ }
}
if (update_allocator)
}
return TRUE;
+
+config_failed:
+ GST_ELEMENT_ERROR (basesrc, RESOURCE, SETTINGS,
+ ("Failed to configure the buffer pool"),
+ ("Configuration is most likely invalid, please report this issue."));
+ gst_object_unref (pool);
+ return FALSE;
}
static gboolean
result = gst_base_src_set_allocation (basesrc, pool, allocator, ¶ms);
+ if (allocator)
+ gst_object_unref (allocator);
+ if (pool)
+ gst_object_unref (pool);
+
gst_query_unref (query);
return result;
basesrc->num_buffers_left = basesrc->num_buffers;
basesrc->running = FALSE;
basesrc->priv->segment_pending = FALSE;
+ basesrc->priv->segment_seqnum = gst_util_seqnum_next ();
+ basesrc->priv->forced_eos = FALSE;
GST_LIVE_UNLOCK (basesrc);
bclass = GST_BASE_SRC_GET_CLASS (basesrc);
could_not_start:
{
GST_DEBUG_OBJECT (basesrc, "could not start");
- /* subclass is supposed to post a message. We don't have to call _stop. */
+ /* subclass is supposed to post a message but we post one as a fallback
+ * just in case. We don't have to call _stop. */
+ GST_ELEMENT_ERROR (basesrc, CORE, STATE_CHANGE, (NULL),
+ ("Failed to start"));
gst_base_src_start_complete (basesrc, GST_FLOW_ERROR);
return FALSE;
}
/* take the stream lock here, we only want to let the task run when we have
* set the STARTED flag */
GST_PAD_STREAM_LOCK (basesrc->srcpad);
- if (mode == GST_PAD_MODE_PUSH) {
- /* do initial seek, which will start the task */
- GST_OBJECT_LOCK (basesrc);
- event = basesrc->pending_seek;
- basesrc->pending_seek = NULL;
- GST_OBJECT_UNLOCK (basesrc);
-
- /* The perform seek code will start the task when finished. We don't have to
- * unlock the streaming thread because it is not running yet */
- if (G_UNLIKELY (!gst_base_src_perform_seek (basesrc, event, FALSE)))
- goto seek_failed;
-
- if (event)
- gst_event_unref (event);
- } else {
- /* if not random_access, we cannot operate in pull mode for now */
- if (G_UNLIKELY (!basesrc->random_access))
- goto no_get_range;
+ switch (mode) {
+ case GST_PAD_MODE_PUSH:
+ /* do initial seek, which will start the task */
+ GST_OBJECT_LOCK (basesrc);
+ event = basesrc->pending_seek;
+ basesrc->pending_seek = NULL;
+ GST_OBJECT_UNLOCK (basesrc);
+
+ /* The perform seek code will start the task when finished. We don't have to
+ * unlock the streaming thread because it is not running yet */
+ if (G_UNLIKELY (!gst_base_src_perform_seek (basesrc, event, FALSE)))
+ goto seek_failed;
+
+ if (event)
+ gst_event_unref (event);
+ break;
+ case GST_PAD_MODE_PULL:
+ /* if not random_access, we cannot operate in pull mode for now */
+ if (G_UNLIKELY (!basesrc->random_access))
+ goto no_get_range;
+ break;
+ default:
+ goto not_activated_yet;
+ break;
}
GST_OBJECT_LOCK (basesrc);
{
GST_PAD_STREAM_UNLOCK (basesrc->srcpad);
GST_ERROR_OBJECT (basesrc, "Failed to perform initial seek");
- gst_base_src_set_flushing (basesrc, TRUE, FALSE, NULL);
+ gst_base_src_stop (basesrc);
if (event)
gst_event_unref (event);
ret = GST_FLOW_ERROR;
no_get_range:
{
GST_PAD_STREAM_UNLOCK (basesrc->srcpad);
- gst_base_src_set_flushing (basesrc, TRUE, FALSE, NULL);
+ gst_base_src_stop (basesrc);
GST_ERROR_OBJECT (basesrc, "Cannot operate in pull mode, stopping");
ret = GST_FLOW_ERROR;
goto error;
}
+not_activated_yet:
+ {
+ GST_PAD_STREAM_UNLOCK (basesrc->srcpad);
+ gst_base_src_stop (basesrc);
+ GST_WARNING_OBJECT (basesrc, "pad not activated yet");
+ ret = GST_FLOW_ERROR;
+ goto error;
+ }
error:
{
GST_OBJECT_LOCK (basesrc);
basesrc->live_running = TRUE;
/* clear pending EOS if any */
- g_atomic_int_set (&basesrc->priv->pending_eos, FALSE);
+ if (g_atomic_int_get (&basesrc->priv->has_pending_eos)) {
+ GST_OBJECT_LOCK (basesrc);
+ CLEAR_PENDING_EOS (basesrc);
+ basesrc->priv->forced_eos = FALSE;
+ GST_OBJECT_UNLOCK (basesrc);
+ }
/* step 1, now that we have the LIVE lock, clear our unlock request */
if (bclass->unlock_stop)
src->priv->stream_start_pending = FALSE;
+ GST_DEBUG_OBJECT (pad, "activating in mode %d", mode);
+
switch (mode) {
case GST_PAD_MODE_PULL:
res = gst_base_src_activate_pull (pad, parent, active);
{
/* we don't need to unblock anything here, the pad deactivation code
* already did this */
- g_atomic_int_set (&basesrc->priv->pending_eos, FALSE);
+ if (g_atomic_int_get (&basesrc->priv->has_pending_eos)) {
+ GST_OBJECT_LOCK (basesrc);
+ CLEAR_PENDING_EOS (basesrc);
+ GST_OBJECT_UNLOCK (basesrc);
+ }
gst_event_replace (&basesrc->pending_seek, NULL);
break;
}
* @src: a #GstBaseSrc
*
* Returns: (transfer full): the instance of the #GstBufferPool used
- * by the src; free it after use it
+ * by the src; unref it after usage.
*/
GstBufferPool *
gst_base_src_get_buffer_pool (GstBaseSrc * src)
* @allocator: (out) (allow-none) (transfer full): the #GstAllocator
* used
* @params: (out) (allow-none) (transfer full): the
- * #GstAllocatorParams of @allocator
+ * #GstAllocationParams of @allocator
*
* Lets #GstBaseSrc sub-classes to know the memory @allocator
* used by the base class and its @params.
*
- * Unref the @allocator after use it.
+ * Unref the @allocator after usage.
*/
void
gst_base_src_get_allocator (GstBaseSrc * src,
projects / platform / upstream / gstreamer.git / blobdiff