#include <string.h>
#include <gst/gst_private.h>
+#include <gst/glib-compat-private.h>
#include "gstbasesrc.h"
#include "gsttypefindhelper.h"
-#include <gst/gstmarshal.h>
#include <gst/gst-i18n-lib.h>
GST_DEBUG_CATEGORY_STATIC (gst_base_src_debug);
#define GST_CAT_DEFAULT gst_base_src_debug
-#define GST_LIVE_GET_LOCK(elem) (GST_BASE_SRC_CAST(elem)->live_lock)
+#define GST_LIVE_GET_LOCK(elem) (&GST_BASE_SRC_CAST(elem)->live_lock)
#define GST_LIVE_LOCK(elem) g_mutex_lock(GST_LIVE_GET_LOCK(elem))
#define GST_LIVE_TRYLOCK(elem) g_mutex_trylock(GST_LIVE_GET_LOCK(elem))
#define GST_LIVE_UNLOCK(elem) g_mutex_unlock(GST_LIVE_GET_LOCK(elem))
-#define GST_LIVE_GET_COND(elem) (GST_BASE_SRC_CAST(elem)->live_cond)
+#define GST_LIVE_GET_COND(elem) (&GST_BASE_SRC_CAST(elem)->live_cond)
#define GST_LIVE_WAIT(elem) g_cond_wait (GST_LIVE_GET_COND (elem), GST_LIVE_GET_LOCK (elem))
-#define GST_LIVE_TIMED_WAIT(elem, timeval) g_cond_timed_wait (GST_LIVE_GET_COND (elem), GST_LIVE_GET_LOCK (elem),\
- timeval)
+#define GST_LIVE_WAIT_UNTIL(elem, end_time) g_cond_timed_wait (GST_LIVE_GET_COND (elem), GST_LIVE_GET_LOCK (elem), end_time)
#define GST_LIVE_SIGNAL(elem) g_cond_signal (GST_LIVE_GET_COND (elem));
#define GST_LIVE_BROADCAST(elem) g_cond_broadcast (GST_LIVE_GET_COND (elem));
gboolean discont;
gboolean flushing;
+ GstFlowReturn start_result;
+ gboolean async;
+
+ /* if a stream-start event should be sent */
+ gboolean stream_start_pending;
+
/* if segment should be sent */
gboolean segment_pending;
GstClockTime earliest_time;
GstBufferPool *pool;
- const GstAllocator *allocator;
+ GstAllocator *allocator;
guint prefix;
guint alignment;
};
static GstCaps *gst_base_src_default_get_caps (GstBaseSrc * bsrc,
GstCaps * filter);
-static void gst_base_src_default_fixate (GstBaseSrc * src, GstCaps * caps);
-static void gst_base_src_fixate (GstBaseSrc * src, GstCaps * caps);
+static GstCaps *gst_base_src_default_fixate (GstBaseSrc * src, GstCaps * caps);
+static GstCaps *gst_base_src_fixate (GstBaseSrc * src, GstCaps * caps);
static gboolean gst_base_src_is_random_access (GstBaseSrc * src);
-static gboolean gst_base_src_activate_push (GstPad * pad, GstObject * parent,
- gboolean active);
-static gboolean gst_base_src_activate_pull (GstPad * pad, GstObject * parent,
- gboolean active);
+static gboolean gst_base_src_activate_mode (GstPad * pad, GstObject * parent,
+ GstPadMode mode, gboolean active);
static void gst_base_src_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_base_src_get_property (GObject * object, guint prop_id,
static gboolean gst_base_src_set_flushing (GstBaseSrc * basesrc,
gboolean flushing, gboolean live_play, gboolean unlock, gboolean * playing);
+
static gboolean gst_base_src_start (GstBaseSrc * basesrc);
static gboolean gst_base_src_stop (GstBaseSrc * basesrc);
klass->alloc = GST_DEBUG_FUNCPTR (gst_base_src_default_alloc);
/* Registering debug symbols for function pointers */
- GST_DEBUG_REGISTER_FUNCPTR (gst_base_src_activate_push);
- GST_DEBUG_REGISTER_FUNCPTR (gst_base_src_activate_pull);
+ GST_DEBUG_REGISTER_FUNCPTR (gst_base_src_activate_mode);
GST_DEBUG_REGISTER_FUNCPTR (gst_base_src_event);
GST_DEBUG_REGISTER_FUNCPTR (gst_base_src_query);
GST_DEBUG_REGISTER_FUNCPTR (gst_base_src_getrange);
basesrc->priv = GST_BASE_SRC_GET_PRIVATE (basesrc);
basesrc->is_live = FALSE;
- basesrc->live_lock = g_mutex_new ();
- basesrc->live_cond = g_cond_new ();
+ g_mutex_init (&basesrc->live_lock);
+ g_cond_init (&basesrc->live_cond);
basesrc->num_buffers = DEFAULT_NUM_BUFFERS;
basesrc->num_buffers_left = -1;
pad = gst_pad_new_from_template (pad_template, "src");
GST_DEBUG_OBJECT (basesrc, "setting functions on src pad");
- gst_pad_set_activatepush_function (pad, gst_base_src_activate_push);
- gst_pad_set_activatepull_function (pad, gst_base_src_activate_pull);
+ gst_pad_set_activatemode_function (pad, gst_base_src_activate_mode);
gst_pad_set_event_function (pad, gst_base_src_event);
gst_pad_set_query_function (pad, gst_base_src_query);
gst_pad_set_getrange_function (pad, gst_base_src_getrange);
basesrc->priv->do_timestamp = DEFAULT_DO_TIMESTAMP;
g_atomic_int_set (&basesrc->priv->have_events, FALSE);
- GST_OBJECT_FLAG_UNSET (basesrc, GST_BASE_SRC_STARTED);
- GST_OBJECT_FLAG_SET (basesrc, GST_ELEMENT_IS_SOURCE);
+ basesrc->priv->start_result = GST_FLOW_FLUSHING;
+ GST_OBJECT_FLAG_UNSET (basesrc, GST_BASE_SRC_FLAG_STARTED);
+ GST_OBJECT_FLAG_UNSET (basesrc, GST_BASE_SRC_FLAG_STARTING);
+ GST_OBJECT_FLAG_SET (basesrc, GST_ELEMENT_FLAG_SOURCE);
GST_DEBUG_OBJECT (basesrc, "init done");
}
basesrc = GST_BASE_SRC (object);
- g_mutex_free (basesrc->live_lock);
- g_cond_free (basesrc->live_cond);
+ g_mutex_clear (&basesrc->live_lock);
+ g_cond_clear (&basesrc->live_cond);
event_p = &basesrc->pending_seek;
gst_event_replace (event_p, NULL);
* 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
* to a state change to READY or a FLUSH event (in which case this function
- * returns #GST_FLOW_WRONG_STATE).
+ * returns #GST_FLOW_FLUSHING).
*
* Since: 0.10.12
*
flushing:
{
GST_DEBUG_OBJECT (src, "we are flushing");
- return GST_FLOW_WRONG_STATE;
+ return GST_FLOW_FLUSHING;
}
}
}
/**
+ * gst_base_src_set_async:
+ * @src: base source instance
+ * @async: new async mode
+ *
+ * Configure async behaviour in @src, no state change will block. The open,
+ * close, start, stop, play and pause virtual methods will be executed in a
+ * different thread and are thus allowed to perform blocking operations. Any
+ * blocking operation should be unblocked with the unlock vmethod.
+ */
+void
+gst_base_src_set_async (GstBaseSrc * src, gboolean async)
+{
+ g_return_if_fail (GST_IS_BASE_SRC (src));
+
+ GST_OBJECT_LOCK (src);
+ src->priv->async = async;
+ GST_OBJECT_UNLOCK (src);
+}
+
+/**
+ * gst_base_src_is_async:
+ * @src: base source instance
+ *
+ * Get the current async behaviour of @src. See also gst_base_src_set_async().
+ *
+ * Returns: %TRUE if @src is operating in async mode.
+ */
+gboolean
+gst_base_src_is_async (GstBaseSrc * src)
+{
+ gboolean res;
+
+ g_return_val_if_fail (GST_IS_BASE_SRC (src), FALSE);
+
+ GST_OBJECT_LOCK (src);
+ res = src->priv->async;
+ GST_OBJECT_UNLOCK (src);
+
+ return res;
+}
+
+
+/**
* gst_base_src_query_latency:
* @src: the source
* @live: (out) (allow-none): if the source is live
return res;
}
+static gboolean
+gst_base_src_send_stream_start (GstBaseSrc * src)
+{
+ gboolean ret = TRUE;
+
+ if (src->priv->stream_start_pending) {
+ ret = gst_pad_push_event (src->srcpad, gst_event_new_stream_start ());
+ src->priv->stream_start_pending = FALSE;
+ }
+
+ return ret;
+}
+
/**
* gst_base_src_set_caps:
* @src: a #GstBaseSrc
bclass = GST_BASE_SRC_GET_CLASS (src);
+ gst_base_src_send_stream_start (src);
gst_pad_push_event (src->srcpad, gst_event_new_caps (caps));
if (bclass->set_caps)
return caps;
}
-static void
+static GstCaps *
gst_base_src_default_fixate (GstBaseSrc * bsrc, GstCaps * caps)
{
GST_DEBUG_OBJECT (bsrc, "using default caps fixate function");
- gst_caps_fixate (caps);
+ return gst_caps_fixate (caps);
}
-static void
+static GstCaps *
gst_base_src_fixate (GstBaseSrc * bsrc, GstCaps * caps)
{
GstBaseSrcClass *bclass;
bclass = GST_BASE_SRC_GET_CLASS (bsrc);
if (bclass->fixate)
- bclass->fixate (bsrc, caps);
+ caps = bclass->fixate (bsrc, caps);
+
+ return caps;
}
static gboolean
bclass = GST_BASE_SRC_GET_CLASS (src);
if (bclass->get_caps) {
gst_query_parse_caps (query, &filter);
- caps = bclass->get_caps (src, filter);
- gst_query_set_caps_result (query, caps);
- gst_caps_unref (caps);
- res = TRUE;
+ if ((caps = bclass->get_caps (src, filter))) {
+ gst_query_set_caps_result (query, caps);
+ gst_caps_unref (caps);
+ res = TRUE;
+ } else {
+ res = FALSE;
+ }
} else
res = FALSE;
break;
result = TRUE;
break;
}
+ case GST_EVENT_RECONFIGURE:
+ result = TRUE;
+ break;
+ case GST_EVENT_LATENCY:
+ result = TRUE;
+ break;
default:
result = FALSE;
break;
}
}
- if (G_UNLIKELY (!GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_STARTED)))
+ if (G_UNLIKELY (!GST_BASE_SRC_IS_STARTED (src)
+ && !GST_BASE_SRC_IS_STARTING (src)))
goto not_started;
if (G_UNLIKELY (!bclass->create))
/* no timestamp set and we are at offset 0, we can timestamp with 0 */
if (offset == 0 && src->segment.time == 0
&& GST_BUFFER_TIMESTAMP (*buf) == -1 && !src->is_live) {
+ GST_DEBUG_OBJECT (src, "setting first timestamp to 0");
*buf = gst_buffer_make_writable (*buf);
GST_BUFFER_TIMESTAMP (*buf) = 0;
}
* get rid of the produced buffer. */
GST_DEBUG_OBJECT (src,
"clock was unscheduled (%d), returning WRONG_STATE", status);
- ret = GST_FLOW_WRONG_STATE;
+ ret = GST_FLOW_FLUSHING;
} else {
/* If we are running when this happens, we quickly switched between
* pause and playing. We try to produce a new buffer */
not_started:
{
GST_DEBUG_OBJECT (src, "getrange but not started");
- return GST_FLOW_WRONG_STATE;
+ return GST_FLOW_FLUSHING;
}
no_function:
{
GST_DEBUG_OBJECT (src, "we are flushing");
gst_buffer_unref (*buf);
*buf = NULL;
- return GST_FLOW_WRONG_STATE;
+ return GST_FLOW_FLUSHING;
}
eos:
{
flushing:
{
GST_DEBUG_OBJECT (src, "we are flushing");
- res = GST_FLOW_WRONG_STATE;
+ res = GST_FLOW_FLUSHING;
goto done;
}
}
gst_base_src_is_random_access (GstBaseSrc * src)
{
/* we need to start the basesrc to check random access */
- if (!GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_STARTED)) {
+ if (!GST_BASE_SRC_IS_STARTED (src)) {
GST_LOG_OBJECT (src, "doing start/stop to check get_range support");
- if (G_LIKELY (gst_base_src_start (src)))
+ if (G_LIKELY (gst_base_src_start (src))) {
+ if (gst_base_src_start_wait (src) != GST_FLOW_OK)
+ goto start_failed;
gst_base_src_stop (src);
+ }
}
return src->random_access;
+
+ /* ERRORS */
+start_failed:
+ {
+ GST_DEBUG_OBJECT (src, "failed to start");
+ return FALSE;
+ }
}
static void
src = GST_BASE_SRC (GST_OBJECT_PARENT (pad));
+ gst_base_src_send_stream_start (src);
+
/* check if we need to renegotiate */
if (gst_pad_check_reconfigure (pad)) {
if (!gst_base_src_negotiate (src))
- GST_DEBUG_OBJECT (src, "Failed to renegotiate");
+ goto not_negotiated;
}
GST_LIVE_LOCK (src);
}
if (G_UNLIKELY (src->priv->discont)) {
+ GST_INFO_OBJECT (src, "marking pending DISCONT");
buf = gst_buffer_make_writable (buf);
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
src->priv->discont = FALSE;
return;
/* special cases */
+not_negotiated:
+ {
+ GST_DEBUG_OBJECT (src, "Failed to renegotiate");
+ ret = GST_FLOW_NOT_NEGOTIATED;
+ goto pause;
+ }
flushing:
{
GST_DEBUG_OBJECT (src, "we are flushing");
GST_LIVE_UNLOCK (src);
- ret = GST_FLOW_WRONG_STATE;
+ ret = GST_FLOW_FLUSHING;
goto pause;
}
pause:
static gboolean
gst_base_src_set_allocation (GstBaseSrc * basesrc, GstBufferPool * pool,
- const GstAllocator * allocator, guint prefix, guint alignment)
+ GstAllocator * allocator, guint prefix, guint alignment)
{
+ GstAllocator *oldalloc;
GstBufferPool *oldpool;
GstBaseSrcPrivate *priv = basesrc->priv;
oldpool = priv->pool;
priv->pool = pool;
+ oldalloc = priv->allocator;
priv->allocator = allocator;
priv->prefix = prefix;
}
gst_object_unref (oldpool);
}
+ if (oldalloc) {
+ gst_allocator_unref (oldalloc);
+ }
return TRUE;
/* ERRORS */
gboolean result = TRUE;
GstQuery *query;
GstBufferPool *pool = NULL;
- const GstAllocator *allocator = NULL;
+ GstAllocator *allocator = NULL;
guint size, min, max, prefix, alignment;
bclass = GST_BASE_SRC_GET_CLASS (basesrc);
&alignment, &pool);
if (size == 0) {
- const gchar *mem = NULL;
-
/* no size, we have variable size buffers */
if (gst_query_get_n_allocation_memories (query) > 0) {
- mem = gst_query_parse_nth_allocation_memory (query, 0);
+ if ((allocator = gst_query_parse_nth_allocation_memory (query, 0)))
+ gst_allocator_ref (allocator);
}
- GST_DEBUG_OBJECT (basesrc, "0 size, getting allocator %s",
- GST_STR_NULL (mem));
- allocator = gst_allocator_find (mem);
+ GST_DEBUG_OBJECT (basesrc, "0 size, using allocator %p", allocator);
} else if (pool == NULL) {
/* fixed size, we can use a bufferpool */
GstStructure *config;
* nego is not needed */
result = TRUE;
} else {
- caps = gst_caps_make_writable (caps);
- gst_base_src_fixate (basesrc, caps);
+ caps = gst_base_src_fixate (basesrc, caps);
GST_DEBUG_OBJECT (basesrc, "fixated to: %" GST_PTR_FORMAT, caps);
if (gst_caps_is_fixed (caps)) {
/* yay, fixed caps, use those then, it's possible that the subclass does
}
gst_caps_unref (caps);
} else {
+ if (caps)
+ gst_caps_unref (caps);
GST_DEBUG_OBJECT (basesrc, "no common caps");
}
return result;
gst_base_src_start (GstBaseSrc * basesrc)
{
GstBaseSrcClass *bclass;
- gboolean result, have_size;
- guint64 size;
- gboolean seekable;
- GstFormat format;
-
- if (GST_OBJECT_FLAG_IS_SET (basesrc, GST_BASE_SRC_STARTED))
- return TRUE;
+ gboolean result;
- GST_DEBUG_OBJECT (basesrc, "starting source");
+ GST_LIVE_LOCK (basesrc);
+ if (GST_BASE_SRC_IS_STARTING (basesrc))
+ goto was_starting;
+ if (GST_BASE_SRC_IS_STARTED (basesrc))
+ goto was_started;
+ basesrc->priv->start_result = GST_FLOW_FLUSHING;
+ GST_OBJECT_FLAG_SET (basesrc, GST_BASE_SRC_FLAG_STARTING);
basesrc->num_buffers_left = basesrc->num_buffers;
-
+ basesrc->running = FALSE;
+ basesrc->priv->segment_pending = FALSE;
GST_OBJECT_LOCK (basesrc);
gst_segment_init (&basesrc->segment, basesrc->segment.format);
GST_OBJECT_UNLOCK (basesrc);
-
- basesrc->running = FALSE;
- basesrc->priv->segment_pending = FALSE;
+ GST_LIVE_UNLOCK (basesrc);
bclass = GST_BASE_SRC_GET_CLASS (basesrc);
if (bclass->start)
if (!result)
goto could_not_start;
- GST_OBJECT_FLAG_SET (basesrc, GST_BASE_SRC_STARTED);
+ if (!gst_base_src_is_async (basesrc))
+ gst_base_src_start_complete (basesrc, GST_FLOW_OK);
+ return result;
+
+ /* ERROR */
+was_starting:
+ {
+ GST_DEBUG_OBJECT (basesrc, "was starting");
+ GST_LIVE_UNLOCK (basesrc);
+ return TRUE;
+ }
+was_started:
+ {
+ GST_DEBUG_OBJECT (basesrc, "was started");
+ GST_LIVE_UNLOCK (basesrc);
+ return TRUE;
+ }
+could_not_start:
+ {
+ GST_DEBUG_OBJECT (basesrc, "could not start");
+ /* subclass is supposed to post a message. We don't have to call _stop. */
+ gst_base_src_start_complete (basesrc, GST_FLOW_ERROR);
+ return FALSE;
+ }
+}
+
+/**
+ * gst_base_src_start_complete:
+ * @src: base source instance
+ * @ret: a #GstFlowReturn
+ *
+ * Complete an asynchronous start operation. When the subclass overrides the
+ * start method, it should call gst_base_src_start_complete() when the start
+ * operation completes either from the same thread or from an asynchronous
+ * helper thread.
+ */
+void
+gst_base_src_start_complete (GstBaseSrc * basesrc, GstFlowReturn ret)
+{
+ gboolean have_size;
+ guint64 size;
+ gboolean seekable;
+ GstFormat format;
+ GstPadMode mode;
+ GstEvent *event;
+
+ if (ret != GST_FLOW_OK)
+ goto error;
+
+ GST_DEBUG_OBJECT (basesrc, "starting source");
format = basesrc->segment.format;
/* figure out the size */
have_size = FALSE;
size = -1;
if (format == GST_FORMAT_BYTES) {
+ GstBaseSrcClass *bclass = GST_BASE_SRC_GET_CLASS (basesrc);
+
if (bclass->get_size) {
if (!(have_size = bclass->get_size (basesrc, &size)))
size = -1;
GST_DEBUG_OBJECT (basesrc, "is random_access: %d", basesrc->random_access);
+ /* stop flushing now but for live sources, still block in the LIVE lock when
+ * we are not yet PLAYING */
+ gst_base_src_set_flushing (basesrc, FALSE, FALSE, FALSE, NULL);
+
gst_pad_mark_reconfigure (GST_BASE_SRC_PAD (basesrc));
- return TRUE;
+ GST_OBJECT_LOCK (basesrc->srcpad);
+ mode = GST_PAD_MODE (basesrc->srcpad);
+ GST_OBJECT_UNLOCK (basesrc->srcpad);
- /* ERROR */
-could_not_start:
+ 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);
+
+ /* no need to unlock anything, the task is certainly
+ * not running here. The perform seek code will start the task when
+ * finished. */
+ 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;
+ }
+
+ GST_LIVE_LOCK (basesrc);
+ GST_OBJECT_FLAG_SET (basesrc, GST_BASE_SRC_FLAG_STARTED);
+ GST_OBJECT_FLAG_UNSET (basesrc, GST_BASE_SRC_FLAG_STARTING);
+ basesrc->priv->start_result = ret;
+ GST_LIVE_SIGNAL (basesrc);
+ GST_LIVE_UNLOCK (basesrc);
+
+ return;
+
+seek_failed:
{
- GST_DEBUG_OBJECT (basesrc, "could not start");
- /* subclass is supposed to post a message. We don't have to call _stop. */
- return FALSE;
+ GST_ERROR_OBJECT (basesrc, "Failed to perform initial seek");
+ gst_base_src_set_flushing (basesrc, TRUE, FALSE, TRUE, NULL);
+ if (event)
+ gst_event_unref (event);
+ ret = GST_FLOW_ERROR;
+ goto error;
+ }
+no_get_range:
+ {
+ gst_base_src_set_flushing (basesrc, TRUE, FALSE, TRUE, NULL);
+ GST_ERROR_OBJECT (basesrc, "Cannot operate in pull mode, stopping");
+ ret = GST_FLOW_ERROR;
+ goto error;
+ }
+error:
+ {
+ GST_LIVE_LOCK (basesrc);
+ basesrc->priv->start_result = ret;
+ GST_OBJECT_FLAG_UNSET (basesrc, GST_BASE_SRC_FLAG_STARTING);
+ GST_LIVE_SIGNAL (basesrc);
+ GST_LIVE_UNLOCK (basesrc);
+ return;
+ }
+}
+
+/**
+ * gst_base_src_start_wait:
+ * @src: base source instance
+ * @ret: a #GstFlowReturn
+ *
+ * Wait until the start operation completes.
+ *
+ * Returns: a #GstFlowReturn.
+ */
+GstFlowReturn
+gst_base_src_start_wait (GstBaseSrc * basesrc)
+{
+ GstFlowReturn result;
+
+ GST_LIVE_LOCK (basesrc);
+ if (G_UNLIKELY (basesrc->priv->flushing))
+ goto flushing;
+
+ while (GST_BASE_SRC_IS_STARTING (basesrc)) {
+ GST_LIVE_WAIT (basesrc);
+ if (G_UNLIKELY (basesrc->priv->flushing))
+ goto flushing;
+ }
+ result = basesrc->priv->start_result;
+ GST_LIVE_UNLOCK (basesrc);
+
+ return result;
+
+ /* ERRORS */
+flushing:
+ {
+ GST_DEBUG_OBJECT (basesrc, "we are flushing");
+ GST_LIVE_UNLOCK (basesrc);
+ return GST_FLOW_FLUSHING;
}
}
GstBaseSrcClass *bclass;
gboolean result = TRUE;
- if (!GST_OBJECT_FLAG_IS_SET (basesrc, GST_BASE_SRC_STARTED))
- return TRUE;
-
GST_DEBUG_OBJECT (basesrc, "stopping source");
+ /* flush all */
+ gst_base_src_set_flushing (basesrc, TRUE, FALSE, TRUE, NULL);
+ /* stop the task */
+ gst_pad_stop_task (basesrc->srcpad);
+
+ GST_LIVE_LOCK (basesrc);
+ if (!GST_BASE_SRC_IS_STARTED (basesrc) && !GST_BASE_SRC_IS_STARTING (basesrc))
+ goto was_stopped;
+
+ GST_OBJECT_FLAG_UNSET (basesrc, GST_BASE_SRC_FLAG_STARTING);
+ GST_OBJECT_FLAG_UNSET (basesrc, GST_BASE_SRC_FLAG_STARTED);
+ basesrc->priv->start_result = GST_FLOW_FLUSHING;
+ GST_LIVE_SIGNAL (basesrc);
+ GST_LIVE_UNLOCK (basesrc);
+
bclass = GST_BASE_SRC_GET_CLASS (basesrc);
if (bclass->stop)
result = bclass->stop (basesrc);
gst_base_src_set_allocation (basesrc, NULL, NULL, 0, 0);
- if (result)
- GST_OBJECT_FLAG_UNSET (basesrc, GST_BASE_SRC_STARTED);
-
return result;
+
+was_stopped:
+ {
+ GST_DEBUG_OBJECT (basesrc, "was started");
+ GST_LIVE_UNLOCK (basesrc);
+ return TRUE;
+ }
}
/* start or stop flushing dataprocessing
gst_base_src_activate_push (GstPad * pad, GstObject * parent, gboolean active)
{
GstBaseSrc *basesrc;
- GstEvent *event;
basesrc = GST_BASE_SRC (parent);
if (G_UNLIKELY (!gst_base_src_start (basesrc)))
goto error_start;
-
- basesrc->priv->discont = TRUE;
- gst_base_src_set_flushing (basesrc, FALSE, FALSE, FALSE, NULL);
-
- /* do initial seek, which will start the task */
- GST_OBJECT_LOCK (basesrc);
- event = basesrc->pending_seek;
- basesrc->pending_seek = NULL;
- GST_OBJECT_UNLOCK (basesrc);
-
- /* no need to unlock anything, the task is certainly
- * not running here. The perform seek code will start the task when
- * finished. */
- if (G_UNLIKELY (!gst_base_src_perform_seek (basesrc, event, FALSE)))
- goto seek_failed;
-
- if (event)
- gst_event_unref (event);
} else {
GST_DEBUG_OBJECT (basesrc, "Deactivating in push mode");
- /* flush all */
- gst_base_src_set_flushing (basesrc, TRUE, FALSE, TRUE, NULL);
- /* stop the task */
- gst_pad_stop_task (pad);
/* now we can stop the source */
if (G_UNLIKELY (!gst_base_src_stop (basesrc)))
goto error_stop;
GST_WARNING_OBJECT (basesrc, "Failed to start in push mode");
return FALSE;
}
-seek_failed:
- {
- GST_ERROR_OBJECT (basesrc, "Failed to perform initial seek");
- /* flush all */
- gst_base_src_set_flushing (basesrc, TRUE, FALSE, TRUE, NULL);
- /* stop the task */
- gst_pad_stop_task (pad);
- /* Stop the basesrc */
- gst_base_src_stop (basesrc);
- if (event)
- gst_event_unref (event);
- return FALSE;
- }
error_stop:
{
GST_DEBUG_OBJECT (basesrc, "Failed to stop in push mode");
GST_DEBUG_OBJECT (basesrc, "Activating in pull mode");
if (G_UNLIKELY (!gst_base_src_start (basesrc)))
goto error_start;
-
- /* if not random_access, we cannot operate in pull mode for now */
- if (G_UNLIKELY (!gst_base_src_is_random_access (basesrc)))
- goto no_get_range;
-
- /* stop flushing now but for live sources, still block in the LIVE lock when
- * we are not yet PLAYING */
- gst_base_src_set_flushing (basesrc, FALSE, FALSE, FALSE, NULL);
} else {
GST_DEBUG_OBJECT (basesrc, "Deactivating in pull mode");
- /* flush all, there is no task to stop */
- gst_base_src_set_flushing (basesrc, TRUE, FALSE, TRUE, NULL);
-
if (G_UNLIKELY (!gst_base_src_stop (basesrc)))
goto error_stop;
}
GST_ERROR_OBJECT (basesrc, "Failed to start in pull mode");
return FALSE;
}
-no_get_range:
- {
- GST_ERROR_OBJECT (basesrc, "Cannot operate in pull mode, stopping");
- gst_base_src_stop (basesrc);
- return FALSE;
- }
error_stop:
{
GST_ERROR_OBJECT (basesrc, "Failed to stop in pull mode");
}
}
+static gboolean
+gst_base_src_activate_mode (GstPad * pad, GstObject * parent,
+ GstPadMode mode, gboolean active)
+{
+ gboolean res;
+
+ switch (mode) {
+ case GST_PAD_MODE_PULL:
+ res = gst_base_src_activate_pull (pad, parent, active);
+ break;
+ case GST_PAD_MODE_PUSH:
+ res = gst_base_src_activate_push (pad, parent, active);
+ break;
+ default:
+ GST_LOG_OBJECT (pad, "unknown activation mode %d", mode);
+ res = FALSE;
+ break;
+ }
+ return res;
+}
+
+
static GstStateChangeReturn
gst_base_src_change_state (GstElement * element, GstStateChange transition)
{
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
+ basesrc->priv->stream_start_pending = TRUE;
no_preroll = gst_base_src_is_live (basesrc);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
{
- GstEvent **event_p;
-
/* we don't need to unblock anything here, the pad deactivation code
* already did this */
g_atomic_int_set (&basesrc->priv->pending_eos, FALSE);
- event_p = &basesrc->pending_seek;
- gst_event_replace (event_p, NULL);
+ gst_event_replace (&basesrc->pending_seek, NULL);
+ basesrc->priv->stream_start_pending = FALSE;
break;
}
case GST_STATE_CHANGE_READY_TO_NULL:
projects / platform / upstream / gstreamer.git / blobdiff