* <listitem>
* <itemizedlist><title>Set-up phase</title>
* <listitem><para>
- * GstBaseParse calls @start to inform subclass that data processing is
+ * #GstBaseParse calls @start to inform subclass that data processing is
* about to start now.
* </para></listitem>
* <listitem><para>
- * GstBaseParse class calls @set_sink_caps to inform the subclass about
+ * #GstBaseParse class calls @set_sink_caps to inform the subclass about
* incoming sinkpad caps. Subclass could already set the srcpad caps
* accordingly, but this might be delayed until calling
* gst_base_parse_finish_frame() with a non-queued frame.
* </para></listitem>
* <listitem><para>
- * At least at this point subclass needs to tell the GstBaseParse class
+ * At least at this point subclass needs to tell the #GstBaseParse class
* how big data chunks it wants to receive (min_frame_size). It can do
* this with gst_base_parse_set_min_frame_size().
* </para></listitem>
* <listitem><para>
- * GstBaseParse class sets up appropriate data passing mode (pull/push)
+ * #GstBaseParse class sets up appropriate data passing mode (pull/push)
* and starts to process the data.
* </para></listitem>
* </itemizedlist>
* <itemizedlist>
* <title>Parsing phase</title>
* <listitem><para>
- * GstBaseParse gathers at least min_frame_size bytes of data either
+ * #GstBaseParse gathers at least min_frame_size bytes of data either
* by pulling it from upstream or collecting buffers in an internal
* #GstAdapter.
* </para></listitem>
* </para><para>
* Subclass is also responsible for setting the buffer metadata
* (e.g. buffer timestamp and duration, or keyframe if applicable).
- * (although the latter can also be done by GstBaseParse if it is
+ * (although the latter can also be done by #GstBaseParse if it is
* appropriately configured, see below). Frame is provided with
* timestamp derived from upstream (as much as generally possible),
* duration obtained from configuration (see below), and offset
* events, or to perform custom (segment) filtering.
* </para></listitem>
* <listitem><para>
- * During the parsing process GstBaseParseClass will handle both srcpad
+ * During the parsing process #GstBaseParseClass will handle both srcpad
* and sinkpad events. They will be passed to subclass if @event or
* @src_event callbacks have been provided.
* </para></listitem>
* <listitem>
* <itemizedlist><title>Shutdown phase</title>
* <listitem><para>
- * GstBaseParse class calls @stop to inform the subclass that data
+ * #GstBaseParse class calls @stop to inform the subclass that data
* parsing will be stopped.
* </para></listitem>
* </itemizedlist>
* needs to set the fixed caps on srcpad, when the format is ensured (e.g.
* when base class calls subclass' @set_sink_caps function).
*
- * This base class uses #GST_FORMAT_DEFAULT as a meaning of frames. So,
+ * This base class uses %GST_FORMAT_DEFAULT as a meaning of frames. So,
* subclass conversion routine needs to know that conversion from
- * #GST_FORMAT_TIME to #GST_FORMAT_DEFAULT must return the
+ * %GST_FORMAT_TIME to %GST_FORMAT_DEFAULT must return the
* frame number that can be found from the given byte position.
*
- * GstBaseParse uses subclasses conversion methods also for seeking (or
+ * #GstBaseParse uses subclasses conversion methods also for seeking (or
* otherwise uses its own default one, see also below).
*
* Subclass @start and @stop functions will be called to inform the beginning
* <listitem><para>
* In particular, if subclass is unable to determine a duration, but
* parsing (or specs) yields a frames per seconds rate, then this can be
- * provided to GstBaseParse to enable it to cater for
+ * provided to #GstBaseParse to enable it to cater for
* buffer time metadata (which will be taken from upstream as much as
* possible). Internally keeping track of frame durations and respective
- * sizes that have been pushed provides GstBaseParse with an estimated
- * bitrate. A default @convert (used if not overriden) will then use these
+ * sizes that have been pushed provides #GstBaseParse with an estimated
+ * bitrate. A default @convert (used if not overridden) will then use these
* rates to perform obvious conversions. These rates are also used to
* update (estimated) duration at regular frame intervals.
* </para></listitem>
gint64 estimated_drift;
guint min_frame_size;
+ gboolean disable_passthrough;
gboolean passthrough;
gboolean pts_interpolate;
+ gboolean infer_ts;
gboolean syncable;
gboolean has_timing_info;
guint fps_num, fps_den;
gboolean discont;
gboolean flushing;
gboolean drain;
+ gboolean saw_gaps;
gint64 offset;
gint64 sync_offset;
gboolean upstream_seekable;
gboolean upstream_has_duration;
gint64 upstream_size;
+ GstFormat upstream_format;
/* minimum distance between two index entries */
GstClockTimeDiff idx_interval;
guint64 idx_byte_interval;
/* Pending serialized events */
GList *pending_events;
- /* Newsegment event to be sent after SEEK */
- gboolean pending_segment;
+
+ /* If baseparse has checked the caps to identify if it is
+ * handling video or audio */
+ gboolean checked_media;
/* offset of last parsed frame/data */
gint64 prev_offset;
GList *detect_buffers;
guint detect_buffers_size;
+ /* True when no buffers have been received yet */
+ gboolean first_buffer;
+
/* if TRUE, a STREAM_START event needs to be pushed */
gboolean push_stream_start;
+
+ /* When we need to skip more data than we have currently */
+ guint skip;
};
typedef struct _GstBaseParseSeek
GstClockTime start_ts;
} GstBaseParseSeek;
+#define DEFAULT_DISABLE_PASSTHROUGH FALSE
+
+enum
+{
+ PROP_0,
+ PROP_DISABLE_PASSTHROUGH,
+ PROP_LAST
+};
+
#define GST_BASE_PARSE_INDEX_LOCK(parse) \
g_mutex_lock (&parse->priv->index_lock);
#define GST_BASE_PARSE_INDEX_UNLOCK(parse) \
GstEvent * event);
static void gst_base_parse_handle_tag (GstBaseParse * parse, GstEvent * event);
+static void gst_base_parse_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_base_parse_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
+
static gboolean gst_base_parse_src_event (GstPad * pad, GstObject * parent,
GstEvent * event);
static gboolean gst_base_parse_src_query (GstPad * pad, GstObject * parent,
static GstFlowReturn gst_base_parse_start_fragment (GstBaseParse * parse);
static GstFlowReturn gst_base_parse_finish_fragment (GstBaseParse * parse,
gboolean prev_head);
+static GstFlowReturn gst_base_parse_send_buffers (GstBaseParse * parse);
static inline GstFlowReturn gst_base_parse_check_sync (GstBaseParse * parse);
static gboolean gst_base_parse_is_seekable (GstBaseParse * parse);
+static void gst_base_parse_push_pending_events (GstBaseParse * parse);
+
static void
gst_base_parse_clear_queues (GstBaseParse * parse)
{
g_list_foreach (parse->priv->pending_events, (GFunc) gst_event_unref, NULL);
g_list_free (parse->priv->pending_events);
parse->priv->pending_events = NULL;
- parse->priv->pending_segment = FALSE;
+
+ parse->priv->checked_media = FALSE;
}
static void
g_object_unref (parse->priv->adapter);
- if (parse->priv->cache) {
- gst_buffer_unref (parse->priv->cache);
- parse->priv->cache = NULL;
- }
-
- g_list_foreach (parse->priv->pending_events, (GFunc) gst_mini_object_unref,
- NULL);
- g_list_free (parse->priv->pending_events);
- parse->priv->pending_events = NULL;
- parse->priv->pending_segment = FALSE;
-
if (parse->priv->index) {
gst_object_unref (parse->priv->index);
parse->priv->index = NULL;
gobject_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (GstBaseParsePrivate));
parent_class = g_type_class_peek_parent (klass);
+
gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_base_parse_finalize);
+ gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_base_parse_set_property);
+ gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_base_parse_get_property);
+
+ /**
+ * GstBaseParse:disable-passthrough:
+ *
+ * If set to %TRUE, baseparse will unconditionally force parsing of the
+ * incoming data. This can be required in the rare cases where the incoming
+ * side-data (caps, pts, dts, ...) is not trusted by the user and wants to
+ * force validation and parsing of the incoming data.
+ * If set to %FALSE, decision of whether to parse the data or not is up to
+ * the implementation (standard behaviour).
+ */
+ g_object_class_install_property (gobject_class, PROP_DISABLE_PASSTHROUGH,
+ g_param_spec_boolean ("disable-passthrough", "Disable passthrough",
+ "Force processing (disables passthrough)",
+ DEFAULT_DISABLE_PASSTHROUGH,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gstelement_class = (GstElementClass *) klass;
gstelement_class->change_state =
GST_OBJECT_FLAG_SET (parse, GST_ELEMENT_FLAG_INDEXABLE);
}
+static void
+gst_base_parse_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstBaseParse *parse = GST_BASE_PARSE (object);
+
+ switch (prop_id) {
+ case PROP_DISABLE_PASSTHROUGH:
+ parse->priv->disable_passthrough = g_value_get_boolean (value);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_base_parse_get_property (GObject * object, guint prop_id, GValue * value,
+ GParamSpec * pspec)
+{
+ GstBaseParse *parse = GST_BASE_PARSE (object);
+
+ switch (prop_id) {
+ case PROP_DISABLE_PASSTHROUGH:
+ g_value_set_boolean (value, parse->priv->disable_passthrough);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
static GstBaseParseFrame *
gst_base_parse_frame_copy (GstBaseParseFrame * frame)
{
}
static inline void
-gst_base_parse_frame_update (GstBaseParse * parse, GstBaseParseFrame * frame,
- GstBuffer * buf)
+gst_base_parse_update_flags (GstBaseParse * parse)
{
- gst_buffer_replace (&frame->buffer, buf);
-
parse->flags = 0;
/* set flags one by one for clarity */
parse->flags |= GST_BASE_PARSE_FLAG_LOST_SYNC;
}
+static inline void
+gst_base_parse_update_frame (GstBaseParse * parse, GstBaseParseFrame * frame)
+{
+ if (G_UNLIKELY (parse->priv->discont)) {
+ GST_DEBUG_OBJECT (parse, "marking DISCONT");
+ GST_BUFFER_FLAG_SET (frame->buffer, GST_BUFFER_FLAG_DISCONT);
+ }
+
+ if (parse->priv->prev_offset != parse->priv->offset || parse->priv->new_frame) {
+ GST_LOG_OBJECT (parse, "marking as new frame");
+ frame->flags |= GST_BASE_PARSE_FRAME_FLAG_NEW_FRAME;
+ }
+
+ frame->offset = parse->priv->prev_offset = parse->priv->offset;
+}
+
static void
gst_base_parse_reset (GstBaseParse * parse)
{
parse->priv->min_frame_size = 1;
parse->priv->discont = TRUE;
parse->priv->flushing = FALSE;
+ parse->priv->saw_gaps = FALSE;
parse->priv->offset = 0;
parse->priv->sync_offset = 0;
parse->priv->update_interval = -1;
parse->priv->next_pts = GST_CLOCK_TIME_NONE;
parse->priv->next_dts = 0;
parse->priv->syncable = TRUE;
+ parse->priv->disable_passthrough = DEFAULT_DISABLE_PASSTHROUGH;
parse->priv->passthrough = FALSE;
parse->priv->pts_interpolate = TRUE;
+ parse->priv->infer_ts = TRUE;
parse->priv->has_timing_info = FALSE;
parse->priv->post_min_bitrate = TRUE;
parse->priv->post_avg_bitrate = TRUE;
parse->priv->upstream_seekable = FALSE;
parse->priv->upstream_size = 0;
parse->priv->upstream_has_duration = FALSE;
+ parse->priv->upstream_format = GST_FORMAT_UNDEFINED;
parse->priv->idx_interval = 0;
parse->priv->idx_byte_interval = 0;
parse->priv->exact_position = TRUE;
parse->priv->seen_keyframe = FALSE;
+ parse->priv->checked_media = FALSE;
parse->priv->last_dts = GST_CLOCK_TIME_NONE;
parse->priv->last_pts = GST_CLOCK_TIME_NONE;
parse->priv->last_offset = 0;
+ parse->priv->skip = 0;
+
g_list_foreach (parse->priv->pending_events, (GFunc) gst_mini_object_unref,
NULL);
g_list_free (parse->priv->pending_events);
parse->priv->pending_events = NULL;
- parse->priv->pending_segment = FALSE;
if (parse->priv->cache) {
gst_buffer_unref (parse->priv->cache);
parse->priv->new_frame = TRUE;
+ parse->priv->first_buffer = TRUE;
+
g_list_foreach (parse->priv->detect_buffers, (GFunc) gst_buffer_unref, NULL);
g_list_free (parse->priv->detect_buffers);
parse->priv->detect_buffers = NULL;
*
* Converts using configured "convert" vmethod in #GstBaseParse class.
*
- * Returns: TRUE if conversion was successful.
+ * Returns: %TRUE if conversion was successful.
*/
static gboolean
gst_base_parse_convert (GstBaseParse * parse,
*
* Handler for sink pad events.
*
- * Returns: TRUE if the event was handled.
+ * Returns: %TRUE if the event was handled.
*/
static gboolean
gst_base_parse_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
const GstSegment *in_segment;
GstSegment out_segment;
gint64 offset = 0, next_dts;
+ guint32 seqnum = gst_event_get_seqnum (event);
gst_event_parse_segment (event, &in_segment);
gst_segment_init (&out_segment, GST_FORMAT_TIME);
+ out_segment.rate = in_segment->rate;
+ out_segment.applied_rate = in_segment->applied_rate;
GST_DEBUG_OBJECT (parse, "segment %" GST_SEGMENT_FORMAT, in_segment);
+ parse->priv->upstream_format = in_segment->format;
if (in_segment->format == GST_FORMAT_BYTES) {
GstBaseParseSeek *seek = NULL;
GSList *node;
gst_event_unref (event);
event = gst_event_new_segment (&out_segment);
+ gst_event_set_seqnum (event, seqnum);
GST_DEBUG_OBJECT (parse, "Converted incoming segment to TIME. %"
GST_SEGMENT_FORMAT, in_segment);
out_segment.time = 0;
event = gst_event_new_segment (&out_segment);
+ gst_event_set_seqnum (event, seqnum);
next_dts = 0;
} else {
* whatever else it might claim */
parse->priv->upstream_seekable = FALSE;
next_dts = in_segment->start;
+ gst_event_copy_segment (event, &out_segment);
}
memcpy (&parse->segment, &out_segment, sizeof (GstSegment));
applied_rate, format, start, stop, start);
*/
- /* save the segment for later, right before we push a new buffer so that
- * the caps are fixed and the next linked element can receive
- * the segment. */
- parse->priv->pending_segment = TRUE;
ret = TRUE;
- /* but finish the current segment */
+ /* save the segment for later, right before we push a new buffer so that
+ * the caps are fixed and the next linked element can receive
+ * the segment but finish the current segment */
GST_DEBUG_OBJECT (parse, "draining current segment");
if (in_segment->rate > 0.0)
gst_base_parse_drain (parse);
parse->priv->offset = offset;
parse->priv->sync_offset = offset;
parse->priv->next_dts = next_dts;
+ parse->priv->next_pts = GST_CLOCK_TIME_NONE;
parse->priv->last_pts = GST_CLOCK_TIME_NONE;
parse->priv->last_dts = GST_CLOCK_TIME_NONE;
+ parse->priv->prev_pts = GST_CLOCK_TIME_NONE;
+ parse->priv->prev_dts = GST_CLOCK_TIME_NONE;
parse->priv->discont = TRUE;
parse->priv->seen_keyframe = FALSE;
+ parse->priv->skip = 0;
break;
}
+ case GST_EVENT_SEGMENT_DONE:
+ /* need to drain now, rather than upon a new segment,
+ * since that would have SEGMENT_DONE come before potential
+ * delayed last part of the current segment */
+ GST_DEBUG_OBJECT (parse, "draining current segment");
+ if (parse->segment.rate > 0.0)
+ gst_base_parse_drain (parse);
+ else
+ gst_base_parse_finish_fragment (parse, FALSE);
+ /* Also forward event immediately, there might be no new data
+ * coming afterwards that would allow us to forward it later */
+ forward_immediate = TRUE;
+ break;
+
case GST_EVENT_FLUSH_START:
GST_OBJECT_LOCK (parse);
parse->priv->flushing = TRUE;
parse->priv->last_pts = GST_CLOCK_TIME_NONE;
parse->priv->last_dts = GST_CLOCK_TIME_NONE;
parse->priv->new_frame = TRUE;
+ parse->priv->skip = 0;
forward_immediate = TRUE;
break;
gst_base_parse_finish_fragment (parse, TRUE);
/* If we STILL have zero frames processed, fire an error */
- if (parse->priv->framecount == 0) {
+ if (parse->priv->framecount == 0 && !parse->priv->saw_gaps &&
+ !parse->priv->first_buffer) {
GST_ELEMENT_ERROR (parse, STREAM, WRONG_TYPE,
("No valid frames found before end of stream"), (NULL));
}
/* newsegment and other serialized events before eos */
- if (G_UNLIKELY (parse->priv->pending_events)) {
- GList *l;
+ gst_base_parse_push_pending_events (parse);
- for (l = parse->priv->pending_events; l != NULL; l = l->next) {
- gst_pad_push_event (parse->srcpad, GST_EVENT (l->data));
- }
- g_list_free (parse->priv->pending_events);
- parse->priv->pending_events = NULL;
- parse->priv->pending_segment = FALSE;
- }
- if (parse->priv->framecount < MIN_FRAMES_TO_POST_BITRATE) {
+ if (!parse->priv->saw_gaps
+ && parse->priv->framecount < MIN_FRAMES_TO_POST_BITRATE) {
/* We've not posted bitrate tags yet - do so now */
gst_base_parse_post_bitrates (parse, TRUE, TRUE, TRUE);
}
case GST_EVENT_GAP:
{
GST_DEBUG_OBJECT (parse, "draining current data due to gap event");
+
+ gst_base_parse_push_pending_events (parse);
+
if (parse->segment.rate > 0.0)
gst_base_parse_drain (parse);
else
gst_base_parse_finish_fragment (parse, TRUE);
forward_immediate = TRUE;
+ parse->priv->saw_gaps = TRUE;
break;
}
case GST_EVENT_TAG:
if (!GST_EVENT_IS_SERIALIZED (event) || forward_immediate) {
ret = gst_pad_push_event (parse->srcpad, event);
} else {
- // GST_VIDEO_DECODER_STREAM_LOCK (decoder);
parse->priv->pending_events =
g_list_prepend (parse->priv->pending_events, event);
- // GST_VIDEO_DECODER_STREAM_UNLOCK (decoder);
ret = TRUE;
}
}
*
* Handler for source pad events.
*
- * Returns: TRUE if the event was handled.
+ * Returns: %TRUE if the event was handled.
*/
static gboolean
gst_base_parse_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
*
* Default srcpad event handler.
*
- * Returns: TRUE if the event was handled and can be dropped.
+ * Returns: %TRUE if the event was handled and can be dropped.
*/
static gboolean
gst_base_parse_src_event_default (GstBaseParse * parse, GstEvent * event)
*
* Default implementation of "convert" vmethod in #GstBaseParse class.
*
- * Returns: TRUE if conversion was successful.
+ * Returns: %TRUE if conversion was successful.
*/
gboolean
gst_base_parse_convert_default (GstBaseParse * parse,
/* inform if duration changed, but try to avoid spamming */
parse->priv->estimated_drift +=
dest_value - parse->priv->estimated_duration;
+
+ parse->priv->estimated_duration = dest_value;
+ GST_LOG_OBJECT (parse,
+ "updated estimated duration to %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (dest_value));
+
if (parse->priv->estimated_drift > GST_SECOND ||
parse->priv->estimated_drift < -GST_SECOND) {
gst_element_post_message (GST_ELEMENT (parse),
gst_message_new_duration_changed (GST_OBJECT (parse)));
parse->priv->estimated_drift = 0;
}
- parse->priv->estimated_duration = dest_value;
- GST_LOG_OBJECT (parse,
- "updated estimated duration to %" GST_TIME_FORMAT,
- GST_TIME_ARGS (dest_value));
}
}
}
if (caps)
gst_caps_unref (caps);
+ parse->priv->checked_media = TRUE;
GST_DEBUG_OBJECT (parse, "media is video: %d", parse->priv->is_video);
}
GST_BUFFER_OFFSET (buffer), GST_BUFFER_OFFSET (buffer),
gst_buffer_get_size (buffer));
- if (parse->priv->discont) {
- GST_DEBUG_OBJECT (parse, "marking DISCONT");
- GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
- parse->priv->discont = FALSE;
- }
-
GST_BUFFER_OFFSET (buffer) = parse->priv->offset;
- frame = gst_base_parse_frame_new (buffer, 0, 0);
+ gst_base_parse_update_flags (parse);
- /* also ensure to update state flags */
- gst_base_parse_frame_update (parse, frame, buffer);
+ frame = gst_base_parse_frame_new (buffer, 0, 0);
gst_buffer_unref (buffer);
+ gst_base_parse_update_frame (parse, frame);
- if (parse->priv->prev_offset != parse->priv->offset || parse->priv->new_frame) {
- GST_LOG_OBJECT (parse, "marking as new frame");
- parse->priv->new_frame = FALSE;
- frame->flags |= GST_BASE_PARSE_FRAME_FLAG_NEW_FRAME;
- }
-
- frame->offset = parse->priv->prev_offset = parse->priv->offset;
+ /* clear flags for next frame */
+ parse->priv->discont = FALSE;
+ parse->priv->new_frame = FALSE;
/* use default handler to provide initial (upstream) metadata */
gst_base_parse_parse_frame (parse, frame);
g_slist_prepend (parse->priv->buffers_head, outbuf);
outbuf = NULL;
} else {
- gst_adapter_flush (parse->priv->adapter, *skip);
+ /* If we're asked to skip more than is available in the adapter,
+ we need to remember what we need to skip for next iteration */
+ gsize av = gst_adapter_available (parse->priv->adapter);
+ GST_DEBUG ("Asked to skip %u (%" G_GSIZE_FORMAT " available)", *skip, av);
+ if (av >= *skip) {
+ gst_adapter_flush (parse->priv->adapter, *skip);
+ } else {
+ GST_DEBUG
+ ("This is more than available, flushing %" G_GSIZE_FORMAT
+ ", storing %u to skip", av, (guint) (*skip - av));
+ parse->priv->skip = *skip - av;
+ gst_adapter_flush (parse->priv->adapter, av);
+ *skip = av;
+ }
}
if (!parse->priv->discont)
parse->priv->sync_offset = parse->priv->offset;
return ret;
}
-/* gst_base_parse_handle_and_push_buffer:
+/* gst_base_parse_push_pending_events:
+ * @parse: #GstBaseParse
+ *
+ * Pushes the pending events
+ */
+static void
+gst_base_parse_push_pending_events (GstBaseParse * parse)
+{
+ if (G_UNLIKELY (parse->priv->pending_events)) {
+ GList *r = g_list_reverse (parse->priv->pending_events);
+ GList *l;
+
+ parse->priv->pending_events = NULL;
+ for (l = r; l != NULL; l = l->next) {
+ gst_pad_push_event (parse->srcpad, GST_EVENT_CAST (l->data));
+ }
+ g_list_free (r);
+ }
+}
+
+/* gst_base_parse_handle_and_push_frame:
* @parse: #GstBaseParse.
* @klass: #GstBaseParseClass.
* @frame: (transfer full): a #GstBaseParseFrame
}
}
+ /* track upstream time if provided, not subclass' internal notion of it */
+ if (parse->priv->upstream_format == GST_FORMAT_TIME) {
+ GST_BUFFER_PTS (frame->buffer) = GST_CLOCK_TIME_NONE;
+ GST_BUFFER_DTS (frame->buffer) = GST_CLOCK_TIME_NONE;
+ }
+
/* interpolating and no valid pts yet,
* start with dts and carry on from there */
- if (parse->priv->pts_interpolate &&
- !GST_CLOCK_TIME_IS_VALID (parse->priv->next_pts))
+ if (parse->priv->infer_ts && parse->priv->pts_interpolate
+ && !GST_CLOCK_TIME_IS_VALID (parse->priv->next_pts))
parse->priv->next_pts = parse->priv->next_dts;
/* again use default handler to add missing metadata;
while ((queued_frame = g_queue_pop_head (&parse->priv->queued_frames))) {
gst_base_parse_push_frame (parse, queued_frame);
+ gst_base_parse_frame_free (queued_frame);
}
}
if (!gst_pad_has_current_caps (parse->srcpad))
goto no_caps;
- if (G_UNLIKELY (parse->priv->pending_segment)) {
+ if (G_UNLIKELY (!parse->priv->checked_media)) {
/* have caps; check identity */
gst_base_parse_check_media (parse);
}
/* Push pending events, including SEGMENT events */
- if (G_UNLIKELY (parse->priv->pending_events)) {
- GList *r = g_list_reverse (parse->priv->pending_events);
- GList *l;
-
- parse->priv->pending_events = NULL;
- for (l = r; l != NULL; l = l->next) {
- gst_pad_push_event (parse->srcpad, GST_EVENT (l->data));
- }
- g_list_free (r);
- parse->priv->pending_segment = FALSE;
- }
+ gst_base_parse_push_pending_events (parse);
/* segment adjustment magic; only if we are running the whole show */
if (!parse->priv->passthrough && parse->segment.rate > 0.0 &&
size);
ret = gst_pad_push (parse->srcpad, buffer);
GST_LOG_OBJECT (parse, "frame pushed, flow %s", gst_flow_get_name (ret));
+ } else if (!parse->priv->disable_passthrough && parse->priv->passthrough) {
+
+ /* in backwards playback mode, if on passthrough we need to push buffers
+ * directly without accumulating them into the buffers_queued as baseparse
+ * will never check for a DISCONT while on passthrough and those buffers
+ * will never be pushed.
+ *
+ * also, as we are on reverse playback, it might be possible that
+ * passthrough might have just been enabled, so make sure to drain the
+ * buffers_queued list */
+ if (G_UNLIKELY (parse->priv->buffers_queued != NULL)) {
+ gst_base_parse_finish_fragment (parse, TRUE);
+ ret = gst_base_parse_send_buffers (parse);
+ }
+
+ if (ret == GST_FLOW_OK) {
+ GST_LOG_OBJECT (parse,
+ "pushing frame (%" G_GSIZE_FORMAT " bytes) now..", size);
+ ret = gst_pad_push (parse->srcpad, buffer);
+ GST_LOG_OBJECT (parse, "frame pushed, flow %s",
+ gst_flow_get_name (ret));
+ } else {
+ GST_LOG_OBJECT (parse,
+ "frame (%" G_GSIZE_FORMAT " bytes) not pushed: %s", size,
+ gst_flow_get_name (ret));
+ gst_buffer_unref (buffer);
+ }
+
} else {
GST_LOG_OBJECT (parse, "frame (%" G_GSIZE_FORMAT " bytes) queued for now",
size);
size, gst_flow_get_name (ret));
gst_buffer_unref (buffer);
/* if we are not sufficiently in control, let upstream decide on EOS */
- if (ret == GST_FLOW_EOS &&
+ if (ret == GST_FLOW_EOS && !parse->priv->disable_passthrough &&
(parse->priv->passthrough ||
(parse->priv->pad_mode == GST_PAD_MODE_PUSH &&
!parse->priv->upstream_seekable)))
/* ERRORS */
no_caps:
{
+ if (GST_PAD_IS_FLUSHING (parse->srcpad))
+ return GST_FLOW_FLUSHING;
+
GST_ELEMENT_ERROR (parse, STREAM, DECODE, ("No caps set"), (NULL));
return GST_FLOW_ERROR;
}
GSList *send = NULL;
GstBuffer *buf;
GstFlowReturn ret = GST_FLOW_OK;
+ gboolean first = TRUE;
send = parse->priv->buffers_send;
GST_TIME_ARGS (GST_BUFFER_PTS (buf)),
GST_TIME_ARGS (GST_BUFFER_DURATION (buf)), GST_BUFFER_OFFSET (buf));
+ /* Make sure the first buffer is always DISCONT. If we split
+ * GOPs inside the parser this is otherwise not guaranteed */
+ if (first) {
+ GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
+ first = FALSE;
+ }
+
/* iterate output queue an push downstream */
ret = gst_pad_push (parse->srcpad, buf);
send = g_slist_delete_link (send, send);
parse->priv->buffers_queued);
}
- /* audio may have all marked as keyframe, so arrange to send here */
- if (!seen_delta)
+ /* audio may have all marked as keyframe, so arrange to send here. Also
+ * we might have ended the loop above on a keyframe, in which case we
+ * should */
+ if (!seen_delta || seen_key)
ret = gst_base_parse_send_buffers (parse);
/* any trailing unused no longer usable (ideally none) */
}
static GstFlowReturn
+gst_base_parse_process_streamheader (GstBaseParse * parse)
+{
+ GstCaps *caps;
+ GstStructure *str;
+ const GValue *value;
+ GstFlowReturn ret = GST_FLOW_OK;
+
+ caps = gst_pad_get_current_caps (GST_BASE_PARSE_SINK_PAD (parse));
+ if (caps == NULL)
+ goto notfound;
+
+ str = gst_caps_get_structure (caps, 0);
+ value = gst_structure_get_value (str, "streamheader");
+ if (value == NULL)
+ goto notfound;
+
+ GST_DEBUG_OBJECT (parse, "Found streamheader field on input caps");
+
+ if (GST_VALUE_HOLDS_ARRAY (value)) {
+ gint i;
+ gsize len = gst_value_array_get_size (value);
+
+ for (i = 0; i < len; i++) {
+ GstBuffer *buffer =
+ gst_value_get_buffer (gst_value_array_get_value (value, i));
+ ret =
+ gst_base_parse_chain (GST_BASE_PARSE_SINK_PAD (parse),
+ GST_OBJECT_CAST (parse), gst_buffer_ref (buffer));
+ }
+
+ } else if (GST_VALUE_HOLDS_BUFFER (value)) {
+ GstBuffer *buffer = gst_value_get_buffer (value);
+ ret =
+ gst_base_parse_chain (GST_BASE_PARSE_SINK_PAD (parse),
+ GST_OBJECT_CAST (parse), gst_buffer_ref (buffer));
+ }
+
+ gst_caps_unref (caps);
+
+ return ret;
+
+notfound:
+ {
+ if (caps) {
+ gst_caps_unref (caps);
+ }
+
+ GST_DEBUG_OBJECT (parse, "No streamheader on caps");
+ return GST_FLOW_OK;
+ }
+}
+
+static GstFlowReturn
gst_base_parse_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
{
GstBaseParseClass *bclass;
GstBaseParse *parse;
GstFlowReturn ret = GST_FLOW_OK;
+ GstFlowReturn old_ret = GST_FLOW_OK;
GstBuffer *tmpbuf = NULL;
guint fsize = 1;
gint skip = -1;
- const guint8 *data;
guint min_size, av;
GstClockTime pts, dts;
parse = GST_BASE_PARSE (parent);
bclass = GST_BASE_PARSE_GET_CLASS (parse);
+ GST_DEBUG_OBJECT (parent, "chain");
+
+ /* early out for speed, if we need to skip */
+ if (buffer && GST_BUFFER_IS_DISCONT (buffer))
+ parse->priv->skip = 0;
+ if (parse->priv->skip > 0) {
+ gsize bsize = gst_buffer_get_size (buffer);
+ GST_DEBUG ("Got %" G_GSIZE_FORMAT " buffer, need to skip %u", bsize,
+ parse->priv->skip);
+ if (parse->priv->skip >= bsize) {
+ parse->priv->skip -= bsize;
+ GST_DEBUG ("All the buffer is skipped");
+ parse->priv->offset += bsize;
+ parse->priv->sync_offset = parse->priv->offset;
+ return GST_FLOW_OK;
+ }
+ buffer = gst_buffer_make_writable (buffer);
+ gst_buffer_resize (buffer, parse->priv->skip, bsize - parse->priv->skip);
+ parse->priv->offset += parse->priv->skip;
+ GST_DEBUG ("Done skipping, we have %u left on this buffer",
+ (unsigned) (bsize - parse->priv->skip));
+ parse->priv->skip = 0;
+ parse->priv->discont = TRUE;
+ }
+
+ if (G_UNLIKELY (parse->priv->first_buffer)) {
+ parse->priv->first_buffer = FALSE;
+ if (!GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_HEADER)) {
+ /* this stream has no header buffers, check if we just prepend the
+ * streamheader from caps to the stream */
+ GST_DEBUG_OBJECT (parse, "Looking for streamheader field on caps to "
+ "prepend to the stream");
+ gst_base_parse_process_streamheader (parse);
+ } else {
+ GST_DEBUG_OBJECT (parse, "Stream has header buffers, not prepending "
+ "streamheader from caps");
+ }
+ }
if (parse->priv->detecting) {
GstBuffer *detect_buf;
GST_TIME_ARGS (GST_BUFFER_DTS (buffer)),
GST_TIME_ARGS (GST_BUFFER_PTS (buffer)));
- if (G_UNLIKELY (parse->priv->passthrough)) {
+ if (G_UNLIKELY (!parse->priv->disable_passthrough
+ && parse->priv->passthrough)) {
GstBaseParseFrame frame;
gst_base_parse_frame_init (&frame);
gst_base_parse_frame_free (&frame);
return ret;
}
- /* upstream feeding us in reverse playback;
- * finish previous fragment and start new upon DISCONT */
- if (parse->segment.rate < 0.0) {
- if (G_UNLIKELY (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT))) {
+ if (G_UNLIKELY (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT))) {
+ /* upstream feeding us in reverse playback;
+ * finish previous fragment and start new upon DISCONT */
+ if (parse->segment.rate < 0.0) {
GST_DEBUG_OBJECT (parse, "buffer starts new reverse playback fragment");
ret = gst_base_parse_finish_fragment (parse, TRUE);
gst_base_parse_start_fragment (parse);
+ } else {
+ /* discont in the stream, drain and mark discont for next output */
+ gst_base_parse_drain (parse);
+ parse->priv->discont = TRUE;
}
}
gst_adapter_push (parse->priv->adapter, buffer);
if (GST_CLOCK_TIME_IS_VALID (dts) && (parse->priv->prev_dts != dts))
parse->priv->prev_dts = parse->priv->next_dts = dts;
+ /* we can mess with, erm interpolate, timestamps,
+ * and incoming stuff has PTS but no DTS seen so far,
+ * then pick up DTS from PTS and hope for the best ... */
+ if (parse->priv->infer_ts &&
+ parse->priv->pts_interpolate &&
+ !GST_CLOCK_TIME_IS_VALID (dts) &&
+ !GST_CLOCK_TIME_IS_VALID (parse->priv->prev_dts) &&
+ GST_CLOCK_TIME_IS_VALID (pts))
+ parse->priv->next_dts = pts;
+
/* always pass all available data */
- data = gst_adapter_map (parse->priv->adapter, av);
- /* arrange for actual data to be copied if subclass tries to,
- * since what is passed is tied to the adapter */
- tmpbuf = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY |
- GST_MEMORY_FLAG_NO_SHARE, (gpointer) data, av, 0, av, NULL, NULL);
+ tmpbuf = gst_adapter_get_buffer (parse->priv->adapter, av);
+
+ /* already inform subclass what timestamps we have planned,
+ * at least if provided by time-based upstream */
+ if (parse->priv->upstream_format == GST_FORMAT_TIME) {
+ tmpbuf = gst_buffer_make_writable (tmpbuf);
+ GST_BUFFER_PTS (tmpbuf) = parse->priv->next_pts;
+ GST_BUFFER_DTS (tmpbuf) = parse->priv->next_dts;
+ GST_BUFFER_DURATION (tmpbuf) = GST_CLOCK_TIME_NONE;
+ }
/* keep the adapter mapped, so keep track of what has to be flushed */
ret = gst_base_parse_handle_buffer (parse, tmpbuf, &skip, &flush);
tmpbuf = NULL;
- /* probably already implicitly unmapped due to adapter operation,
- * but for good measure ... */
- gst_adapter_unmap (parse->priv->adapter);
if (ret != GST_FLOW_OK && ret != GST_FLOW_NOT_LINKED) {
goto done;
}
if (skip == 0 && flush == 0) {
GST_LOG_OBJECT (parse, "nothing skipped and no frames finished, "
"breaking to get more data");
+ /* ignore this return as it produced no data */
+ ret = old_ret;
goto done;
}
+ old_ret = ret;
}
done:
if (ret != GST_FLOW_OK)
break;
+ /* If a large amount of data was requested to be skipped, _handle_buffer
+ might have set the priv->skip flag to an extra amount on top of skip.
+ In pull mode, we can just pull from the new offset directly. */
+ parse->priv->offset += parse->priv->skip;
+ parse->priv->skip = 0;
+
/* something flushed means something happened,
* and we should bail out of this loop so as not to occupy
* the task thread indefinitely */
if (G_UNLIKELY (parse->priv->push_stream_start)) {
gchar *stream_id;
+ GstEvent *event;
stream_id =
gst_pad_create_stream_id (parse->srcpad, GST_ELEMENT_CAST (parse),
NULL);
+ event = gst_event_new_stream_start (stream_id);
+ gst_event_set_group_id (event, gst_util_group_id_next ());
+
GST_DEBUG_OBJECT (parse, "Pushing STREAM_START");
- gst_pad_push_event (parse->srcpad, gst_event_new_stream_start (stream_id));
+ gst_pad_push_event (parse->srcpad, event);
parse->priv->push_stream_start = FALSE;
g_free (stream_id);
}
}
ret = gst_base_parse_scan_frame (parse, klass);
- if (ret != GST_FLOW_OK)
- goto done;
/* eat expected eos signalling past segment in reverse playback */
if (parse->segment.rate < 0.0 && ret == GST_FLOW_EOS &&
gst_base_parse_finish_fragment (parse, FALSE);
/* force previous fragment */
parse->priv->offset = -1;
- ret = GST_FLOW_OK;
+ goto eos;
}
+ if (ret != GST_FLOW_OK)
+ goto done;
+
done:
if (ret == GST_FLOW_EOS)
goto eos;
push_eos = TRUE;
}
if (push_eos) {
- /* Push pending events, including SEGMENT events */
- if (G_UNLIKELY (parse->priv->pending_events)) {
- GList *r = g_list_reverse (parse->priv->pending_events);
- GList *l;
-
- parse->priv->pending_events = NULL;
- for (l = r; l != NULL; l = l->next) {
- gst_pad_push_event (parse->srcpad, GST_EVENT (l->data));
- }
- g_list_free (r);
- parse->priv->pending_segment = FALSE;
+ if (parse->priv->estimated_duration <= 0) {
+ gst_base_parse_update_duration (parse);
}
+ /* Push pending events, including SEGMENT events */
+ gst_base_parse_push_pending_events (parse);
gst_pad_push_event (parse->srcpad, gst_event_new_eos ());
}
parse->priv->pending_events =
g_list_prepend (parse->priv->pending_events,
gst_event_new_segment (&parse->segment));
- parse->priv->pending_segment = TRUE;
result = TRUE;
} else {
result = gst_pad_stop_task (pad);
}
/**
+ * gst_base_parse_set_infer_ts:
+ * @parse: a #GstBaseParse
+ * @infer_ts: %TRUE if parser should infer DTS/PTS from each other
+ *
+ * By default, the base class might try to infer PTS from DTS and vice
+ * versa. While this is generally correct for audio data, it may not
+ * be otherwise. Sub-classes implementing such formats should disable
+ * timestamp inferring.
+ */
+void
+gst_base_parse_set_infer_ts (GstBaseParse * parse, gboolean infer_ts)
+{
+ parse->priv->infer_ts = infer_ts;
+ GST_INFO_OBJECT (parse, "TS inferring: %s", (infer_ts) ? "yes" : "no");
+}
+
+/**
* gst_base_parse_set_latency:
* @parse: a #GstBaseParse
* @min_latency: minimum parse latency
gst_base_parse_set_latency (GstBaseParse * parse, GstClockTime min_latency,
GstClockTime max_latency)
{
+ g_return_if_fail (min_latency != GST_CLOCK_TIME_NONE);
+ g_return_if_fail (min_latency <= max_latency);
+
GST_OBJECT_LOCK (parse);
parse->priv->min_latency = min_latency;
parse->priv->max_latency = max_latency;
GST_OBJECT_LOCK (parse);
/* add our latency */
- if (min_latency != -1)
- min_latency += parse->priv->min_latency;
- if (max_latency != -1)
+ min_latency += parse->priv->min_latency;
+ if (max_latency == -1 || parse->priv->max_latency == -1)
+ max_latency = -1;
+ else
max_latency += parse->priv->max_latency;
GST_OBJECT_UNLOCK (parse);
}
break;
}
+ case GST_QUERY_SEGMENT:
+ {
+ GstFormat format;
+ gint64 start, stop;
+
+ format = parse->segment.format;
+
+ start =
+ gst_segment_to_stream_time (&parse->segment, format,
+ parse->segment.start);
+ if ((stop = parse->segment.stop) == -1)
+ stop = parse->segment.duration;
+ else
+ stop = gst_segment_to_stream_time (&parse->segment, format, stop);
+
+ gst_query_set_segment (query, parse->segment.rate, format, start, stop);
+ res = TRUE;
+ break;
+ }
default:
res = gst_pad_query_default (pad, GST_OBJECT_CAST (parse), query);
break;
/* need initial positions; start and end */
lpos = parse->priv->first_frame_offset;
ltime = parse->priv->first_frame_pts;
+ /* try other one if no luck */
+ if (!GST_CLOCK_TIME_IS_VALID (ltime))
+ ltime = parse->priv->first_frame_dts;
if (!gst_base_parse_get_duration (parse, GST_FORMAT_TIME, &htime)) {
GST_DEBUG_OBJECT (parse, "Unknown time duration, cannot bisect");
return GST_FLOW_ERROR;
GST_DEBUG_OBJECT (parse,
"Bisection initial bounds: bytes %" G_GINT64_FORMAT " %" G_GINT64_FORMAT
- ", times %" GST_TIME_FORMAT " %" GST_TIME_FORMAT, lpos, htime,
+ ", times %" GST_TIME_FORMAT " %" GST_TIME_FORMAT, lpos, hpos,
GST_TIME_ARGS (ltime), GST_TIME_ARGS (htime));
/* check preconditions are satisfied;
gint64 start, stop, seekpos, seekstop;
GstSegment seeksegment = { 0, };
GstClockTime start_ts;
+ guint32 seqnum;
+ GstEvent *segment_event;
/* try upstream first, unless we're driving the streaming thread ourselves */
if (parse->priv->pad_mode != GST_PAD_MODE_PULL) {
gst_event_parse_seek (event, &rate, &format, &flags,
&start_type, &start, &stop_type, &stop);
+ seqnum = gst_event_get_seqnum (event);
GST_DEBUG_OBJECT (parse, "seek to format %s, rate %f, "
"start type %d at %" GST_TIME_FORMAT ", end type %d at %"
if (rate < 0.0 && parse->priv->pad_mode == GST_PAD_MODE_PUSH)
goto negative_rate;
- if (rate < 0.0 && parse->priv->pad_mode == GST_PAD_MODE_PULL)
- goto negative_rate_pull_mode;
-
if (start_type != GST_SEEK_TYPE_SET ||
(stop_type != GST_SEEK_TYPE_SET && stop_type != GST_SEEK_TYPE_NONE))
goto wrong_type;
GST_DEBUG_OBJECT (parse, "accurate seek possible");
accurate = TRUE;
}
+
if (accurate) {
- GstClockTime startpos = seeksegment.position;
+ GstClockTime startpos;
+ if (rate >= 0)
+ startpos = seeksegment.position;
+ else
+ startpos = start;
/* accurate requested, so ... seek a bit before target */
if (startpos < parse->priv->lead_in_ts)
startpos = 0;
else
startpos -= parse->priv->lead_in_ts;
+
+ if (seeksegment.stop == -1 && seeksegment.duration != -1)
+ seeksegment.stop = seeksegment.start + seeksegment.duration;
+
seekpos = gst_base_parse_find_offset (parse, startpos, TRUE, &start_ts);
seekstop = gst_base_parse_find_offset (parse, seeksegment.stop, FALSE,
NULL);
} else {
- start_ts = seeksegment.position;
- if (!gst_base_parse_convert (parse, format, seeksegment.position,
+ if (rate >= 0)
+ start_ts = seeksegment.position;
+ else
+ start_ts = start;
+
+ if (seeksegment.stop == -1 && seeksegment.duration != -1)
+ seeksegment.stop = seeksegment.start + seeksegment.duration;
+
+ if (!gst_base_parse_convert (parse, format, start_ts,
GST_FORMAT_BYTES, &seekpos))
goto convert_failed;
if (!gst_base_parse_convert (parse, format, seeksegment.stop,
if (flush) {
if (parse->srcpad) {
+ GstEvent *fevent = gst_event_new_flush_start ();
GST_DEBUG_OBJECT (parse, "sending flush start");
- gst_pad_push_event (parse->srcpad, gst_event_new_flush_start ());
+
+ gst_event_set_seqnum (fevent, seqnum);
+
+ gst_pad_push_event (parse->srcpad, gst_event_ref (fevent));
/* unlock upstream pull_range */
- gst_pad_push_event (parse->sinkpad, gst_event_new_flush_start ());
+ gst_pad_push_event (parse->sinkpad, fevent);
}
} else {
gst_pad_pause_task (parse->sinkpad);
/* prepare for streaming again */
if (flush) {
+ GstEvent *fevent = gst_event_new_flush_stop (TRUE);
GST_DEBUG_OBJECT (parse, "sending flush stop");
- gst_pad_push_event (parse->srcpad, gst_event_new_flush_stop (TRUE));
- gst_pad_push_event (parse->sinkpad, gst_event_new_flush_stop (TRUE));
+ gst_event_set_seqnum (fevent, seqnum);
+ gst_pad_push_event (parse->srcpad, gst_event_ref (fevent));
+ gst_pad_push_event (parse->sinkpad, fevent);
gst_base_parse_clear_queues (parse);
} else {
/* keep track of our position */
/* store the newsegment event so it can be sent from the streaming thread. */
/* This will be sent later in _loop() */
- parse->priv->pending_segment = TRUE;
+ segment_event = gst_event_new_segment (&parse->segment);
+ gst_event_set_seqnum (segment_event, seqnum);
parse->priv->pending_events =
- g_list_prepend (parse->priv->pending_events,
- gst_event_new_segment (&parse->segment));
+ g_list_prepend (parse->priv->pending_events, segment_event);
GST_DEBUG_OBJECT (parse, "Created newseg format %d, "
"start = %" GST_TIME_FORMAT ", stop = %" GST_TIME_FORMAT
parse->priv->seen_keyframe = FALSE;
parse->priv->discont = TRUE;
parse->priv->next_dts = start_ts;
+ parse->priv->next_pts = GST_CLOCK_TIME_NONE;
parse->priv->last_dts = GST_CLOCK_TIME_NONE;
parse->priv->last_pts = GST_CLOCK_TIME_NONE;
parse->priv->sync_offset = seekpos;
seekstop = seekpos;
new_event = gst_event_new_seek (rate, GST_FORMAT_BYTES, flags,
GST_SEEK_TYPE_SET, seekpos, stop_type, seekstop);
+ gst_event_set_seqnum (new_event, seqnum);
/* store segment info so its precise details can be reconstructed when
* receiving newsegment;
return res;
/* ERRORS */
-negative_rate_pull_mode:
- {
- GST_FIXME_OBJECT (parse, "negative playback in pull mode needs fixing");
- res = FALSE;
- goto done;
- }
negative_rate:
{
GST_DEBUG_OBJECT (parse, "negative playback rates delegated upstream.");
*
* This function should only be called from a @handle_frame implementation.
*
- * GstBaseParse creates initial timestamps for frames by using the last
+ * #GstBaseParse creates initial timestamps for frames by using the last
* timestamp seen in the stream before the frame starts. In certain
* cases, the correct timestamps will occur in the stream after the
* start of the frame, but before the start of the actual picture data.
GstClockTime pts, dts;
g_return_if_fail (GST_IS_BASE_PARSE (parse));
- g_return_if_fail (offset >= 0);
pts = gst_adapter_prev_pts_at_offset (parse->priv->adapter, offset, NULL);
dts = gst_adapter_prev_dts_at_offset (parse->priv->adapter, offset, NULL);
projects / platform / upstream / gstreamer.git / blobdiff