mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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71c3141672
Improvements to uridecodebin3 and urisourcebin so that they are reusable across a PAUSED->READY->PAUSED transition. Disconnect and release decodebin3 request pads when urisourcebin removes src pads. In urisourcebin, make sure to remove src pads that are exposed directly (raw pads and static typefind srcpads) when cleaning up. Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/768 Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1100>
2967 lines
89 KiB
C
2967 lines
89 KiB
C
/* GStreamer
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* Copyright (C) <2015> Jan Schmidt <jan@centricular.com>
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* Copyright (C) <2007> Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:element-urisourcebin
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* @title: urisourcebin
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*
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* urisourcebin is an element for accessing URIs in a uniform manner.
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*
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* It handles selecting a URI source element and potentially download
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* buffering for network sources. It produces one or more source pads,
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* depending on the input source, for feeding to decoding chains or decodebin.
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*
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* The main configuration is via the #GstURISourceBin:uri property.
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*
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* > urisourcebin is still experimental API and a technology preview.
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* > Its behaviour and exposed API is subject to change.
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*/
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/* FIXME 0.11: suppress warnings for deprecated API such as GValueArray
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* with newer GLib versions (>= 2.31.0) */
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#define GLIB_DISABLE_DEPRECATION_WARNINGS
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <string.h>
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#include <gst/gst.h>
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#include <gst/gst-i18n-plugin.h>
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#include <gst/pbutils/missing-plugins.h>
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#include "gstplay-enum.h"
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#include "gstrawcaps.h"
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#include "gstplaybackelements.h"
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#include "gstplaybackutils.h"
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#define GST_TYPE_URI_SOURCE_BIN \
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(gst_uri_source_bin_get_type())
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#define GST_URI_SOURCE_BIN(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_URI_SOURCE_BIN,GstURISourceBin))
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#define GST_URI_SOURCE_BIN_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_URI_SOURCE_BIN,GstURISourceBinClass))
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#define GST_IS_URI_SOURCE_BIN(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_URI_SOURCE_BIN))
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#define GST_IS_URI_SOURCE_BIN_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_URI_SOURCE_BIN))
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#define GST_URI_SOURCE_BIN_CAST(obj) ((GstURISourceBin *) (obj))
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typedef struct _GstURISourceBin GstURISourceBin;
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typedef struct _GstURISourceBinClass GstURISourceBinClass;
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typedef struct _ChildSrcPadInfo ChildSrcPadInfo;
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typedef struct _OutputSlotInfo OutputSlotInfo;
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#define GST_URI_SOURCE_BIN_LOCK(urisrc) (g_mutex_lock(&((GstURISourceBin*)(urisrc))->lock))
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#define GST_URI_SOURCE_BIN_UNLOCK(urisrc) (g_mutex_unlock(&((GstURISourceBin*)(urisrc))->lock))
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#define BUFFERING_LOCK(ubin) G_STMT_START { \
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GST_LOG_OBJECT (ubin, \
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"buffering locking from thread %p", \
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g_thread_self ()); \
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g_mutex_lock (&GST_URI_SOURCE_BIN_CAST(ubin)->buffering_lock); \
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GST_LOG_OBJECT (ubin, \
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"buffering lock from thread %p", \
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g_thread_self ()); \
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} G_STMT_END
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#define BUFFERING_UNLOCK(ubin) G_STMT_START { \
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GST_LOG_OBJECT (ubin, \
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"buffering unlocking from thread %p", \
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g_thread_self ()); \
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g_mutex_unlock (&GST_URI_SOURCE_BIN_CAST(ubin)->buffering_lock); \
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} G_STMT_END
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/* Track a source pad from a child that
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* is linked or needs linking to an output
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* slot, or source pads that are directly
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* exposed as ghost pads */
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struct _ChildSrcPadInfo
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{
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guint blocking_probe_id;
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guint event_probe_id;
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/* Source pad this info is attached to (not reffed, since
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* the pad owns the ChildSrcPadInfo as qdata */
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GstPad *src_pad;
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GstCaps *cur_caps; /* holds ref */
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/* Configured output slot, if any */
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OutputSlotInfo *output_slot;
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/* If this info is for a directly exposed pad,
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* rather than linked through a slot it's here: */
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GstPad *output_pad;
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};
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struct _OutputSlotInfo
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{
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ChildSrcPadInfo *linked_info; /* demux source pad info feeding this slot, if any */
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GstElement *queue; /* queue2 or downloadbuffer */
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GstPad *sinkpad; /* Sink pad of the queue eleemnt */
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GstPad *srcpad; /* Output ghost pad */
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gboolean is_eos; /* Did EOS get fed into the buffering element */
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gulong bitrate_changed_id; /* queue bitrate changed notification */
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};
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/**
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* GstURISourceBin
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*
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* urisourcebin element struct
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*/
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struct _GstURISourceBin
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{
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GstBin parent_instance;
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GMutex lock; /* lock for constructing */
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GMutex factories_lock;
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guint32 factories_cookie;
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GList *factories; /* factories we can use for selecting elements */
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gchar *uri;
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guint64 connection_speed;
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gboolean is_stream;
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gboolean is_adaptive;
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gboolean need_queue;
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guint64 buffer_duration; /* When buffering, buffer duration (ns) */
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guint buffer_size; /* When buffering, buffer size (bytes) */
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gboolean download;
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gboolean use_buffering;
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gdouble low_watermark;
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gdouble high_watermark;
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GstElement *source;
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GList *typefinds; /* list of typefind element */
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GstElement *demuxer; /* Adaptive demuxer if any */
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GSList *out_slots;
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guint numpads;
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/* for dynamic sources */
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guint src_np_sig_id; /* new-pad signal id */
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guint64 ring_buffer_max_size; /* 0 means disabled */
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GList *pending_pads; /* Pads we have blocked pending assignment
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to an output source pad */
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GList *buffering_status; /* element currently buffering messages */
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gint last_buffering_pct; /* Avoid sending buffering over and over */
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GMutex buffering_lock;
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GMutex buffering_post_lock;
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};
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struct _GstURISourceBinClass
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{
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GstBinClass parent_class;
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/* emitted when all data has been drained out
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* FIXME : What do we need this for ?? */
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void (*drained) (GstElement * element);
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/* emitted when all data has been fed into buffering slots (i.e the
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* actual sources are done) */
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void (*about_to_finish) (GstElement * element);
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};
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static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src_%u",
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GST_PAD_SRC,
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GST_PAD_SOMETIMES,
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GST_STATIC_CAPS_ANY);
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static GstStaticCaps default_raw_caps = GST_STATIC_CAPS (DEFAULT_RAW_CAPS);
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GST_DEBUG_CATEGORY_STATIC (gst_uri_source_bin_debug);
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#define GST_CAT_DEFAULT gst_uri_source_bin_debug
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/* signals */
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enum
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{
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SIGNAL_DRAINED,
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SIGNAL_ABOUT_TO_FINISH,
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SIGNAL_SOURCE_SETUP,
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LAST_SIGNAL
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};
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/* properties */
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#define DEFAULT_PROP_URI NULL
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#define DEFAULT_PROP_SOURCE NULL
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#define DEFAULT_CONNECTION_SPEED 0
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#define DEFAULT_BUFFER_DURATION -1
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#define DEFAULT_BUFFER_SIZE -1
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#define DEFAULT_DOWNLOAD FALSE
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#define DEFAULT_USE_BUFFERING TRUE
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#define DEFAULT_RING_BUFFER_MAX_SIZE 0
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#define DEFAULT_LOW_WATERMARK 0.01
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#define DEFAULT_HIGH_WATERMARK 0.99
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#define ACTUAL_DEFAULT_BUFFER_SIZE 10 * 1024 * 1024 /* The value used for byte limits when buffer-size == -1 */
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#define ACTUAL_DEFAULT_BUFFER_DURATION 5 * GST_SECOND /* The value used for time limits when buffer-duration == -1 */
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#define GET_BUFFER_SIZE(u) ((u)->buffer_size == -1 ? ACTUAL_DEFAULT_BUFFER_SIZE : (u)->buffer_size)
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#define GET_BUFFER_DURATION(u) ((u)->buffer_duration == -1 ? ACTUAL_DEFAULT_BUFFER_DURATION : (u)->buffer_duration)
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#define DEFAULT_CAPS (gst_static_caps_get (&default_raw_caps))
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enum
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{
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PROP_0,
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PROP_URI,
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PROP_SOURCE,
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PROP_CONNECTION_SPEED,
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PROP_BUFFER_SIZE,
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PROP_BUFFER_DURATION,
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PROP_DOWNLOAD,
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PROP_USE_BUFFERING,
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PROP_RING_BUFFER_MAX_SIZE,
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PROP_LOW_WATERMARK,
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PROP_HIGH_WATERMARK,
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PROP_STATISTICS,
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};
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#define CUSTOM_EOS_QUARK _custom_eos_quark_get ()
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#define CUSTOM_EOS_QUARK_DATA "custom-eos"
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static GQuark
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_custom_eos_quark_get (void)
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{
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static gsize g_quark;
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if (g_once_init_enter (&g_quark)) {
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gsize quark =
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(gsize) g_quark_from_static_string ("urisourcebin-custom-eos");
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g_once_init_leave (&g_quark, quark);
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}
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return g_quark;
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}
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static void post_missing_plugin_error (GstElement * urisrc,
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const gchar * element_name);
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static guint gst_uri_source_bin_signals[LAST_SIGNAL] = { 0 };
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GType gst_uri_source_bin_get_type (void);
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#define gst_uri_source_bin_parent_class parent_class
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G_DEFINE_TYPE (GstURISourceBin, gst_uri_source_bin, GST_TYPE_BIN);
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#define _do_init \
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GST_DEBUG_CATEGORY_INIT (gst_uri_source_bin_debug, "urisourcebin", 0, "URI source element"); \
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playback_element_init (plugin);
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GST_ELEMENT_REGISTER_DEFINE_WITH_CODE (urisourcebin, "urisourcebin",
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GST_RANK_NONE, GST_TYPE_URI_SOURCE_BIN, _do_init);
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static void gst_uri_source_bin_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_uri_source_bin_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_uri_source_bin_finalize (GObject * obj);
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static void handle_message (GstBin * bin, GstMessage * msg);
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static gboolean gst_uri_source_bin_query (GstElement * element,
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GstQuery * query);
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static GstStateChangeReturn gst_uri_source_bin_change_state (GstElement *
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element, GstStateChange transition);
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static void remove_demuxer (GstURISourceBin * bin);
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static void expose_output_pad (GstURISourceBin * urisrc, GstPad * pad);
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static OutputSlotInfo *get_output_slot (GstURISourceBin * urisrc,
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gboolean do_download, gboolean is_adaptive, GstCaps * caps);
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static void free_output_slot (OutputSlotInfo * slot, GstURISourceBin * urisrc);
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static void free_output_slot_async (GstURISourceBin * urisrc,
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OutputSlotInfo * slot);
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static GstPad *create_output_pad (GstURISourceBin * urisrc, GstPad * pad);
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static void remove_buffering_msgs (GstURISourceBin * bin, GstObject * src);
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static void update_queue_values (GstURISourceBin * urisrc);
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static GstStructure *get_queue_statistics (GstURISourceBin * urisrc);
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static void
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gst_uri_source_bin_class_init (GstURISourceBinClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstBinClass *gstbin_class;
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gobject_class = G_OBJECT_CLASS (klass);
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gstelement_class = GST_ELEMENT_CLASS (klass);
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gstbin_class = GST_BIN_CLASS (klass);
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gobject_class->set_property = gst_uri_source_bin_set_property;
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gobject_class->get_property = gst_uri_source_bin_get_property;
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gobject_class->finalize = gst_uri_source_bin_finalize;
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g_object_class_install_property (gobject_class, PROP_URI,
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g_param_spec_string ("uri", "URI", "URI to decode",
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DEFAULT_PROP_URI, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_SOURCE,
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g_param_spec_object ("source", "Source", "Source object used",
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GST_TYPE_ELEMENT, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_CONNECTION_SPEED,
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g_param_spec_uint64 ("connection-speed", "Connection Speed",
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"Network connection speed in kbps (0 = unknown)",
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0, G_MAXUINT64 / 1000, DEFAULT_CONNECTION_SPEED,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_BUFFER_SIZE,
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g_param_spec_int ("buffer-size", "Buffer size (bytes)",
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"Buffer size when buffering streams (-1 default value)",
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-1, G_MAXINT, DEFAULT_BUFFER_SIZE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_BUFFER_DURATION,
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g_param_spec_int64 ("buffer-duration", "Buffer duration (ns)",
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"Buffer duration when buffering streams (-1 default value)",
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-1, G_MAXINT64, DEFAULT_BUFFER_DURATION,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstURISourceBin::download:
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*
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* For certain media type, enable download buffering.
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*/
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g_object_class_install_property (gobject_class, PROP_DOWNLOAD,
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g_param_spec_boolean ("download", "Download",
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"Attempt download buffering when buffering network streams",
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DEFAULT_DOWNLOAD, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstURISourceBin::use-buffering:
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*
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* Perform buffering using a queue2 element, and emit BUFFERING
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* messages based on low-/high-percent thresholds of streaming data,
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* such as adaptive-demuxer streams.
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*
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* When download buffering is activated and used for the current media
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* type, this property does nothing.
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*
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*/
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g_object_class_install_property (gobject_class, PROP_USE_BUFFERING,
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g_param_spec_boolean ("use-buffering", "Use Buffering",
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"Perform buffering on demuxed/parsed media",
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DEFAULT_USE_BUFFERING, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstURISourceBin::ring-buffer-max-size
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*
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* The maximum size of the ring buffer in kilobytes. If set to 0, the ring
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* buffer is disabled. Default is 0.
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*
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*/
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g_object_class_install_property (gobject_class, PROP_RING_BUFFER_MAX_SIZE,
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g_param_spec_uint64 ("ring-buffer-max-size",
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"Max. ring buffer size (bytes)",
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"Max. amount of data in the ring buffer (bytes, 0 = ring buffer disabled)",
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0, G_MAXUINT, DEFAULT_RING_BUFFER_MAX_SIZE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstURISourceBin::low-watermark
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*
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* Proportion of the queue size (either in bytes or time) for buffering
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* to restart when crossed from above. Only used if use-buffering is TRUE.
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*/
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g_object_class_install_property (gobject_class, PROP_LOW_WATERMARK,
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g_param_spec_double ("low-watermark", "Low watermark",
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"Low threshold for buffering to start. Only used if use-buffering is True",
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0.0, 1.0, DEFAULT_LOW_WATERMARK,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstURISourceBin::high-watermark
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*
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* Proportion of the queue size (either in bytes or time) to complete
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* buffering. Only used if use-buffering is TRUE.
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*/
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g_object_class_install_property (gobject_class, PROP_HIGH_WATERMARK,
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g_param_spec_double ("high-watermark", "High watermark",
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"High threshold for buffering to finish. Only used if use-buffering is True",
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0.0, 1.0, DEFAULT_HIGH_WATERMARK,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstURISourceBin::statistics
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*
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* A GStructure containing the following values based on the values from
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* all the queue's contained in this urisourcebin.
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*
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* "minimum-byte-level" G_TYPE_UINT Minimum of the current byte levels
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* "maximum-byte-level" G_TYPE_UINT Maximum of the current byte levels
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* "average-byte-level" G_TYPE_UINT Average of the current byte levels
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* "minimum-time-level" G_TYPE_UINT64 Minimum of the current time levels
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* "maximum-time-level" G_TYPE_UINT64 Maximum of the current time levels
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* "average-time-level" G_TYPE_UINT64 Average of the current time levels
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*/
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g_object_class_install_property (gobject_class, PROP_STATISTICS,
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g_param_spec_boxed ("statistics", "Queue Statistics",
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"A set of statistics over all the queue-like elements contained in "
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"this element", GST_TYPE_STRUCTURE,
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G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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/**
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* GstURISourceBin::drained:
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*
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* This signal is emitted when the data for the current uri is played.
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*/
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gst_uri_source_bin_signals[SIGNAL_DRAINED] =
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g_signal_new ("drained", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GstURISourceBinClass, drained), NULL, NULL, NULL,
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G_TYPE_NONE, 0, G_TYPE_NONE);
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/**
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* GstURISourceBin::about-to-finish:
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*
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* This signal is emitted when the data for the current uri is played.
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*/
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gst_uri_source_bin_signals[SIGNAL_ABOUT_TO_FINISH] =
|
|
g_signal_new ("about-to-finish", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST,
|
|
G_STRUCT_OFFSET (GstURISourceBinClass, about_to_finish), NULL, NULL, NULL,
|
|
G_TYPE_NONE, 0, G_TYPE_NONE);
|
|
|
|
/**
|
|
* GstURISourceBin::source-setup:
|
|
* @bin: the urisourcebin.
|
|
* @source: source element
|
|
*
|
|
* This signal is emitted after the source element has been created, so
|
|
* it can be configured by setting additional properties (e.g. set a
|
|
* proxy server for an http source, or set the device and read speed for
|
|
* an audio cd source). This is functionally equivalent to connecting to
|
|
* the notify::source signal, but more convenient.
|
|
*
|
|
* Since: 1.6.1
|
|
*/
|
|
gst_uri_source_bin_signals[SIGNAL_SOURCE_SETUP] =
|
|
g_signal_new ("source-setup", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL, G_TYPE_NONE, 1, GST_TYPE_ELEMENT);
|
|
|
|
gst_element_class_add_pad_template (gstelement_class,
|
|
gst_static_pad_template_get (&srctemplate));
|
|
gst_element_class_set_static_metadata (gstelement_class,
|
|
"URI reader", "Generic/Bin/Source",
|
|
"Download and buffer a URI as needed",
|
|
"Jan Schmidt <jan@centricular.com>");
|
|
|
|
gstelement_class->query = GST_DEBUG_FUNCPTR (gst_uri_source_bin_query);
|
|
gstelement_class->change_state =
|
|
GST_DEBUG_FUNCPTR (gst_uri_source_bin_change_state);
|
|
|
|
gstbin_class->handle_message = GST_DEBUG_FUNCPTR (handle_message);
|
|
}
|
|
|
|
static void
|
|
gst_uri_source_bin_init (GstURISourceBin * urisrc)
|
|
{
|
|
/* first filter out the interesting element factories */
|
|
g_mutex_init (&urisrc->factories_lock);
|
|
|
|
g_mutex_init (&urisrc->lock);
|
|
|
|
g_mutex_init (&urisrc->buffering_lock);
|
|
g_mutex_init (&urisrc->buffering_post_lock);
|
|
|
|
urisrc->uri = g_strdup (DEFAULT_PROP_URI);
|
|
urisrc->connection_speed = DEFAULT_CONNECTION_SPEED;
|
|
|
|
urisrc->buffer_duration = DEFAULT_BUFFER_DURATION;
|
|
urisrc->buffer_size = DEFAULT_BUFFER_SIZE;
|
|
urisrc->download = DEFAULT_DOWNLOAD;
|
|
urisrc->use_buffering = DEFAULT_USE_BUFFERING;
|
|
urisrc->ring_buffer_max_size = DEFAULT_RING_BUFFER_MAX_SIZE;
|
|
urisrc->last_buffering_pct = -1;
|
|
urisrc->low_watermark = DEFAULT_LOW_WATERMARK;
|
|
urisrc->high_watermark = DEFAULT_HIGH_WATERMARK;
|
|
|
|
GST_OBJECT_FLAG_SET (urisrc,
|
|
GST_ELEMENT_FLAG_SOURCE | GST_BIN_FLAG_STREAMS_AWARE);
|
|
gst_bin_set_suppressed_flags (GST_BIN (urisrc),
|
|
GST_ELEMENT_FLAG_SOURCE | GST_ELEMENT_FLAG_SINK);
|
|
}
|
|
|
|
static void
|
|
gst_uri_source_bin_finalize (GObject * obj)
|
|
{
|
|
GstURISourceBin *urisrc = GST_URI_SOURCE_BIN (obj);
|
|
|
|
remove_demuxer (urisrc);
|
|
g_mutex_clear (&urisrc->lock);
|
|
g_mutex_clear (&urisrc->factories_lock);
|
|
g_mutex_clear (&urisrc->buffering_lock);
|
|
g_mutex_clear (&urisrc->buffering_post_lock);
|
|
g_free (urisrc->uri);
|
|
if (urisrc->factories)
|
|
gst_plugin_feature_list_free (urisrc->factories);
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize (obj);
|
|
}
|
|
|
|
static void
|
|
gst_uri_source_bin_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstURISourceBin *urisrc = GST_URI_SOURCE_BIN (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_URI:
|
|
GST_OBJECT_LOCK (urisrc);
|
|
g_free (urisrc->uri);
|
|
urisrc->uri = g_value_dup_string (value);
|
|
GST_OBJECT_UNLOCK (urisrc);
|
|
break;
|
|
case PROP_CONNECTION_SPEED:
|
|
GST_OBJECT_LOCK (urisrc);
|
|
urisrc->connection_speed = g_value_get_uint64 (value) * 1000;
|
|
GST_OBJECT_UNLOCK (urisrc);
|
|
break;
|
|
case PROP_BUFFER_SIZE:
|
|
urisrc->buffer_size = g_value_get_int (value);
|
|
update_queue_values (urisrc);
|
|
break;
|
|
case PROP_BUFFER_DURATION:
|
|
urisrc->buffer_duration = g_value_get_int64 (value);
|
|
update_queue_values (urisrc);
|
|
break;
|
|
case PROP_DOWNLOAD:
|
|
urisrc->download = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_USE_BUFFERING:
|
|
urisrc->use_buffering = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_RING_BUFFER_MAX_SIZE:
|
|
urisrc->ring_buffer_max_size = g_value_get_uint64 (value);
|
|
break;
|
|
case PROP_LOW_WATERMARK:
|
|
urisrc->low_watermark = g_value_get_double (value);
|
|
update_queue_values (urisrc);
|
|
break;
|
|
case PROP_HIGH_WATERMARK:
|
|
urisrc->high_watermark = g_value_get_double (value);
|
|
update_queue_values (urisrc);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_uri_source_bin_get_property (GObject * object, guint prop_id,
|
|
GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstURISourceBin *urisrc = GST_URI_SOURCE_BIN (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_URI:
|
|
GST_OBJECT_LOCK (urisrc);
|
|
g_value_set_string (value, urisrc->uri);
|
|
GST_OBJECT_UNLOCK (urisrc);
|
|
break;
|
|
case PROP_SOURCE:
|
|
GST_OBJECT_LOCK (urisrc);
|
|
g_value_set_object (value, urisrc->source);
|
|
GST_OBJECT_UNLOCK (urisrc);
|
|
break;
|
|
case PROP_CONNECTION_SPEED:
|
|
GST_OBJECT_LOCK (urisrc);
|
|
g_value_set_uint64 (value, urisrc->connection_speed / 1000);
|
|
GST_OBJECT_UNLOCK (urisrc);
|
|
break;
|
|
case PROP_BUFFER_SIZE:
|
|
GST_OBJECT_LOCK (urisrc);
|
|
g_value_set_int (value, urisrc->buffer_size);
|
|
GST_OBJECT_UNLOCK (urisrc);
|
|
break;
|
|
case PROP_BUFFER_DURATION:
|
|
GST_OBJECT_LOCK (urisrc);
|
|
g_value_set_int64 (value, urisrc->buffer_duration);
|
|
GST_OBJECT_UNLOCK (urisrc);
|
|
break;
|
|
case PROP_DOWNLOAD:
|
|
g_value_set_boolean (value, urisrc->download);
|
|
break;
|
|
case PROP_USE_BUFFERING:
|
|
g_value_set_boolean (value, urisrc->use_buffering);
|
|
break;
|
|
case PROP_RING_BUFFER_MAX_SIZE:
|
|
g_value_set_uint64 (value, urisrc->ring_buffer_max_size);
|
|
break;
|
|
case PROP_LOW_WATERMARK:
|
|
g_value_set_double (value, urisrc->low_watermark);
|
|
break;
|
|
case PROP_HIGH_WATERMARK:
|
|
g_value_set_double (value, urisrc->high_watermark);
|
|
break;
|
|
case PROP_STATISTICS:
|
|
g_value_take_boxed (value, get_queue_statistics (urisrc));
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
copy_sticky_events (GstPad * pad, GstEvent ** event, gpointer user_data)
|
|
{
|
|
GstPad *gpad = GST_PAD_CAST (user_data);
|
|
|
|
GST_DEBUG_OBJECT (gpad, "store sticky event %" GST_PTR_FORMAT, *event);
|
|
gst_pad_store_sticky_event (gpad, *event);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static GstPadProbeReturn
|
|
pending_pad_blocked (GstPad * pad, GstPadProbeInfo * info, gpointer user_data);
|
|
|
|
static GstPadProbeReturn
|
|
demux_pad_events (GstPad * pad, GstPadProbeInfo * info, gpointer user_data);
|
|
|
|
static void
|
|
free_child_src_pad_info (ChildSrcPadInfo * info)
|
|
{
|
|
if (info->cur_caps)
|
|
gst_caps_unref (info->cur_caps);
|
|
if (info->output_pad)
|
|
gst_object_unref (info->output_pad);
|
|
g_free (info);
|
|
}
|
|
|
|
/* Called by the signal handlers when a demuxer has produced a new stream */
|
|
static void
|
|
new_demuxer_pad_added_cb (GstElement * element, GstPad * pad,
|
|
GstURISourceBin * urisrc)
|
|
{
|
|
ChildSrcPadInfo *info;
|
|
|
|
info = g_new0 (ChildSrcPadInfo, 1);
|
|
info->src_pad = pad;
|
|
info->cur_caps = gst_pad_get_current_caps (pad);
|
|
if (info->cur_caps == NULL)
|
|
info->cur_caps = gst_pad_query_caps (pad, NULL);
|
|
|
|
g_object_set_data_full (G_OBJECT (pad), "urisourcebin.srcpadinfo",
|
|
info, (GDestroyNotify) free_child_src_pad_info);
|
|
|
|
GST_DEBUG_OBJECT (element, "new demuxer pad, name: <%s>. "
|
|
"Added as pending pad with caps %" GST_PTR_FORMAT,
|
|
GST_PAD_NAME (pad), info->cur_caps);
|
|
|
|
GST_URI_SOURCE_BIN_LOCK (urisrc);
|
|
urisrc->pending_pads = g_list_prepend (urisrc->pending_pads, pad);
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
|
|
/* Block the pad. On the first data on that pad if it hasn't
|
|
* been linked to an output slot, we'll create one */
|
|
info->blocking_probe_id =
|
|
gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM,
|
|
pending_pad_blocked, urisrc, NULL);
|
|
info->event_probe_id =
|
|
gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM |
|
|
GST_PAD_PROBE_TYPE_EVENT_FLUSH, demux_pad_events, urisrc, NULL);
|
|
}
|
|
|
|
static GstPadProbeReturn
|
|
pending_pad_blocked (GstPad * pad, GstPadProbeInfo * info, gpointer user_data)
|
|
{
|
|
ChildSrcPadInfo *child_info;
|
|
OutputSlotInfo *slot;
|
|
GstURISourceBin *urisrc = GST_URI_SOURCE_BIN (user_data);
|
|
GstCaps *caps;
|
|
GstPad *output_pad;
|
|
|
|
if (!(child_info =
|
|
g_object_get_data (G_OBJECT (pad), "urisourcebin.srcpadinfo")))
|
|
goto done;
|
|
|
|
GST_LOG_OBJECT (urisrc, "Removing pad %" GST_PTR_FORMAT " from pending list",
|
|
pad);
|
|
|
|
GST_URI_SOURCE_BIN_LOCK (urisrc);
|
|
|
|
/* Once blocked, this pad is no longer pending, one way or another */
|
|
urisrc->pending_pads = g_list_remove (urisrc->pending_pads, pad);
|
|
|
|
/* If already linked to a slot, nothing more to do */
|
|
if (child_info->output_slot) {
|
|
GST_LOG_OBJECT (urisrc, "Pad %" GST_PTR_FORMAT " is linked to queue %"
|
|
GST_PTR_FORMAT " on slot %p", pad, child_info->output_slot->queue,
|
|
child_info->output_slot);
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
goto done;
|
|
}
|
|
|
|
caps = gst_pad_get_current_caps (pad);
|
|
if (caps == NULL)
|
|
caps = gst_pad_query_caps (pad, NULL);
|
|
|
|
slot = get_output_slot (urisrc, FALSE, TRUE, caps);
|
|
|
|
gst_caps_unref (caps);
|
|
|
|
if (slot == NULL) {
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
goto done;
|
|
}
|
|
|
|
GST_LOG_OBJECT (urisrc, "Pad %" GST_PTR_FORMAT " linked to slot %p", pad,
|
|
slot);
|
|
|
|
child_info->output_slot = slot;
|
|
slot->linked_info = child_info;
|
|
gst_pad_link (pad, slot->sinkpad);
|
|
|
|
output_pad = gst_object_ref (slot->srcpad);
|
|
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
|
|
expose_output_pad (urisrc, output_pad);
|
|
gst_object_unref (output_pad);
|
|
|
|
done:
|
|
return GST_PAD_PROBE_REMOVE;
|
|
}
|
|
|
|
/* Called with LOCK held */
|
|
/* Looks for a suitable pending pad to connect onto this
|
|
* finishing output slot that's about to EOS */
|
|
static gboolean
|
|
link_pending_pad_to_output (GstURISourceBin * urisrc, OutputSlotInfo * slot)
|
|
{
|
|
GList *cur;
|
|
ChildSrcPadInfo *in_info = slot->linked_info;
|
|
ChildSrcPadInfo *out_info = NULL;
|
|
gboolean res = FALSE;
|
|
GstCaps *cur_caps;
|
|
|
|
/* Look for a suitable pending pad */
|
|
cur_caps = gst_pad_get_current_caps (slot->sinkpad);
|
|
|
|
GST_DEBUG_OBJECT (urisrc,
|
|
"Looking for a pending pad with caps %" GST_PTR_FORMAT, cur_caps);
|
|
|
|
for (cur = urisrc->pending_pads; cur != NULL; cur = g_list_next (cur)) {
|
|
GstPad *pending = (GstPad *) (cur->data);
|
|
ChildSrcPadInfo *cur_info = NULL;
|
|
if ((cur_info =
|
|
g_object_get_data (G_OBJECT (pending),
|
|
"urisourcebin.srcpadinfo"))) {
|
|
/* Don't re-link to the same pad in case of EOS while still pending */
|
|
if (in_info == cur_info)
|
|
continue;
|
|
if (cur_caps == NULL || gst_caps_is_equal (cur_caps, cur_info->cur_caps)) {
|
|
GST_DEBUG_OBJECT (urisrc, "Found suitable pending pad %" GST_PTR_FORMAT
|
|
" with caps %" GST_PTR_FORMAT " to link to this output slot",
|
|
cur_info->src_pad, cur_info->cur_caps);
|
|
out_info = cur_info;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (cur_caps)
|
|
gst_caps_unref (cur_caps);
|
|
|
|
if (out_info) {
|
|
/* Block any upstream stuff while we switch out the pad */
|
|
guint block_id =
|
|
gst_pad_add_probe (slot->sinkpad, GST_PAD_PROBE_TYPE_BLOCK_UPSTREAM,
|
|
NULL, NULL, NULL);
|
|
GST_DEBUG_OBJECT (urisrc, "Linking pending pad %" GST_PTR_FORMAT
|
|
" to existing output slot %p", out_info->src_pad, slot);
|
|
|
|
if (in_info) {
|
|
gst_pad_unlink (in_info->src_pad, slot->sinkpad);
|
|
in_info->output_slot = NULL;
|
|
slot->linked_info = NULL;
|
|
}
|
|
|
|
if (gst_pad_link (out_info->src_pad, slot->sinkpad) == GST_PAD_LINK_OK) {
|
|
out_info->output_slot = slot;
|
|
slot->linked_info = out_info;
|
|
|
|
BUFFERING_LOCK (urisrc);
|
|
/* A re-linked slot is no longer EOS */
|
|
slot->is_eos = FALSE;
|
|
BUFFERING_UNLOCK (urisrc);
|
|
res = TRUE;
|
|
slot->is_eos = FALSE;
|
|
urisrc->pending_pads =
|
|
g_list_remove (urisrc->pending_pads, out_info->src_pad);
|
|
} else {
|
|
GST_ERROR_OBJECT (urisrc,
|
|
"Failed to link new demuxer pad to the output slot we tried");
|
|
}
|
|
gst_pad_remove_probe (slot->sinkpad, block_id);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
/* Called with lock held */
|
|
static gboolean
|
|
all_slots_are_eos (GstURISourceBin * urisrc)
|
|
{
|
|
GSList *tmp;
|
|
|
|
for (tmp = urisrc->out_slots; tmp; tmp = tmp->next) {
|
|
OutputSlotInfo *slot = (OutputSlotInfo *) tmp->data;
|
|
if (slot->is_eos == FALSE)
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static GstPadProbeReturn
|
|
demux_pad_events (GstPad * pad, GstPadProbeInfo * info, gpointer user_data)
|
|
{
|
|
GstURISourceBin *urisrc = GST_URI_SOURCE_BIN (user_data);
|
|
ChildSrcPadInfo *child_info;
|
|
GstPadProbeReturn ret = GST_PAD_PROBE_OK;
|
|
GstEvent *ev = GST_PAD_PROBE_INFO_EVENT (info);
|
|
|
|
if (!(child_info =
|
|
g_object_get_data (G_OBJECT (pad), "urisourcebin.srcpadinfo")))
|
|
goto done;
|
|
|
|
GST_URI_SOURCE_BIN_LOCK (urisrc);
|
|
/* If not linked to a slot, nothing more to do */
|
|
if (child_info->output_slot == NULL) {
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
goto done;
|
|
}
|
|
|
|
switch (GST_EVENT_TYPE (ev)) {
|
|
case GST_EVENT_EOS:
|
|
{
|
|
gboolean all_streams_eos;
|
|
|
|
GST_LOG_OBJECT (urisrc, "EOS on pad %" GST_PTR_FORMAT, pad);
|
|
|
|
if ((urisrc->pending_pads &&
|
|
link_pending_pad_to_output (urisrc, child_info->output_slot))) {
|
|
/* Found a new source pad to give this slot data - no need to send EOS */
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
ret = GST_PAD_PROBE_DROP;
|
|
goto done;
|
|
}
|
|
|
|
BUFFERING_LOCK (urisrc);
|
|
/* Mark that we fed an EOS to this slot */
|
|
child_info->output_slot->is_eos = TRUE;
|
|
all_streams_eos = all_slots_are_eos (urisrc);
|
|
BUFFERING_UNLOCK (urisrc);
|
|
|
|
/* EOS means this element is no longer buffering */
|
|
remove_buffering_msgs (urisrc,
|
|
GST_OBJECT_CAST (child_info->output_slot->queue));
|
|
|
|
/* Mark this custom EOS */
|
|
gst_mini_object_set_qdata (GST_MINI_OBJECT_CAST (ev), CUSTOM_EOS_QUARK,
|
|
(gchar *) CUSTOM_EOS_QUARK_DATA, NULL);
|
|
if (all_streams_eos) {
|
|
GST_DEBUG_OBJECT (urisrc, "POSTING ABOUT TO FINISH");
|
|
g_signal_emit (urisrc,
|
|
gst_uri_source_bin_signals[SIGNAL_ABOUT_TO_FINISH], 0, NULL);
|
|
}
|
|
}
|
|
break;
|
|
case GST_EVENT_CAPS:
|
|
{
|
|
GstCaps *caps;
|
|
gst_event_parse_caps (ev, &caps);
|
|
gst_caps_replace (&child_info->cur_caps, caps);
|
|
}
|
|
break;
|
|
case GST_EVENT_STREAM_START:
|
|
case GST_EVENT_FLUSH_STOP:
|
|
BUFFERING_LOCK (urisrc);
|
|
child_info->output_slot->is_eos = FALSE;
|
|
BUFFERING_UNLOCK (urisrc);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
|
|
done:
|
|
return ret;
|
|
}
|
|
|
|
static GstPadProbeReturn
|
|
pre_queue_event_probe (GstPad * pad, GstPadProbeInfo * info, gpointer user_data)
|
|
{
|
|
GstURISourceBin *urisrc = GST_URI_SOURCE_BIN (user_data);
|
|
GstPadProbeReturn ret = GST_PAD_PROBE_OK;
|
|
GstEvent *ev = GST_PAD_PROBE_INFO_EVENT (info);
|
|
|
|
switch (GST_EVENT_TYPE (ev)) {
|
|
case GST_EVENT_EOS:
|
|
{
|
|
GST_LOG_OBJECT (urisrc, "EOS on pad %" GST_PTR_FORMAT, pad);
|
|
GST_DEBUG_OBJECT (urisrc, "POSTING ABOUT TO FINISH");
|
|
g_signal_emit (urisrc,
|
|
gst_uri_source_bin_signals[SIGNAL_ABOUT_TO_FINISH], 0, NULL);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static GstStructure *
|
|
get_queue_statistics (GstURISourceBin * urisrc)
|
|
{
|
|
GstStructure *ret = NULL;
|
|
guint min_byte_level = 0, max_byte_level = 0;
|
|
guint64 min_time_level = 0, max_time_level = 0;
|
|
gdouble avg_byte_level = 0., avg_time_level = 0.;
|
|
guint i = 0;
|
|
GSList *cur;
|
|
|
|
GST_URI_SOURCE_BIN_LOCK (urisrc);
|
|
|
|
for (cur = urisrc->out_slots; cur != NULL; cur = g_slist_next (cur)) {
|
|
OutputSlotInfo *slot = (OutputSlotInfo *) (cur->data);
|
|
guint byte_limit = 0;
|
|
guint64 time_limit = 0;
|
|
|
|
g_object_get (slot->queue, "current-level-bytes", &byte_limit,
|
|
"current-level-time", &time_limit, NULL);
|
|
|
|
if (byte_limit < min_byte_level)
|
|
min_byte_level = byte_limit;
|
|
if (byte_limit > max_byte_level)
|
|
max_byte_level = byte_limit;
|
|
avg_byte_level = (avg_byte_level * i + byte_limit) / (gdouble) (i + 1);
|
|
|
|
if (time_limit < min_time_level)
|
|
min_time_level = time_limit;
|
|
if (time_limit > max_time_level)
|
|
max_time_level = time_limit;
|
|
avg_time_level = (avg_time_level * i + time_limit) / (gdouble) (i + 1);
|
|
|
|
i++;
|
|
}
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
|
|
ret = gst_structure_new ("application/x-urisourcebin-stats",
|
|
"minimum-byte-level", G_TYPE_UINT, (guint) min_byte_level,
|
|
"maximum-byte-level", G_TYPE_UINT, (guint) max_byte_level,
|
|
"average-byte-level", G_TYPE_UINT, (guint) avg_byte_level,
|
|
"minimum-time-level", G_TYPE_UINT64, (guint64) min_time_level,
|
|
"maximum-time-level", G_TYPE_UINT64, (guint64) max_time_level,
|
|
"average-time-level", G_TYPE_UINT64, (guint64) avg_time_level, NULL);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
update_queue_values (GstURISourceBin * urisrc)
|
|
{
|
|
gint64 duration;
|
|
guint buffer_size;
|
|
gdouble low_watermark, high_watermark;
|
|
guint64 cumulative_bitrate = 0;
|
|
GSList *cur;
|
|
|
|
GST_URI_SOURCE_BIN_LOCK (urisrc);
|
|
duration = GET_BUFFER_DURATION (urisrc);
|
|
buffer_size = GET_BUFFER_SIZE (urisrc);
|
|
low_watermark = urisrc->low_watermark;
|
|
high_watermark = urisrc->high_watermark;
|
|
|
|
for (cur = urisrc->out_slots; cur != NULL; cur = g_slist_next (cur)) {
|
|
OutputSlotInfo *slot = (OutputSlotInfo *) (cur->data);
|
|
guint64 bitrate = 0;
|
|
|
|
if (g_object_class_find_property (G_OBJECT_GET_CLASS (slot->queue),
|
|
"bitrate")) {
|
|
g_object_get (G_OBJECT (slot->queue), "bitrate", &bitrate, NULL);
|
|
}
|
|
|
|
if (bitrate > 0)
|
|
cumulative_bitrate += bitrate;
|
|
else {
|
|
GST_TRACE_OBJECT (urisrc, "Unknown bitrate detected from %" GST_PTR_FORMAT
|
|
", resetting all bitrates", slot->queue);
|
|
cumulative_bitrate = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (urisrc, "recalculating queue limits with cumulative "
|
|
"bitrate %" G_GUINT64_FORMAT ", buffer size %u, buffer duration %"
|
|
G_GINT64_FORMAT, cumulative_bitrate, buffer_size, duration);
|
|
|
|
for (cur = urisrc->out_slots; cur != NULL; cur = g_slist_next (cur)) {
|
|
OutputSlotInfo *slot = (OutputSlotInfo *) (cur->data);
|
|
guint byte_limit;
|
|
|
|
if (cumulative_bitrate > 0
|
|
&& g_object_class_find_property (G_OBJECT_GET_CLASS (slot->queue),
|
|
"bitrate")) {
|
|
guint64 bitrate;
|
|
g_object_get (G_OBJECT (slot->queue), "bitrate", &bitrate, NULL);
|
|
byte_limit =
|
|
gst_util_uint64_scale (buffer_size, bitrate, cumulative_bitrate);
|
|
} else {
|
|
/* if not all queue's have valid bitrates, use the buffer-size as the
|
|
* limit */
|
|
byte_limit = buffer_size;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (urisrc,
|
|
"calculated new limits for queue-like element %" GST_PTR_FORMAT
|
|
", bytes:%u, time:%" G_GUINT64_FORMAT
|
|
", low-watermark:%f, high-watermark:%f",
|
|
slot->queue, byte_limit, (guint64) duration, low_watermark,
|
|
high_watermark);
|
|
g_object_set (G_OBJECT (slot->queue), "max-size-bytes", byte_limit,
|
|
"max-size-time", (guint64) duration, "low-watermark", low_watermark,
|
|
"high-watermark", high_watermark, NULL);
|
|
}
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
}
|
|
|
|
static void
|
|
on_queue_bitrate_changed (GstElement * queue, GParamSpec * pspec,
|
|
gpointer user_data)
|
|
{
|
|
GstURISourceBin *urisrc = GST_URI_SOURCE_BIN (user_data);
|
|
|
|
gst_element_call_async (GST_ELEMENT (urisrc),
|
|
(GstElementCallAsyncFunc) update_queue_values, NULL, NULL);
|
|
}
|
|
|
|
/* Called with lock held */
|
|
static OutputSlotInfo *
|
|
get_output_slot (GstURISourceBin * urisrc, gboolean do_download,
|
|
gboolean is_adaptive, GstCaps * caps)
|
|
{
|
|
OutputSlotInfo *slot;
|
|
GstPad *srcpad;
|
|
GstElement *queue;
|
|
const gchar *elem_name;
|
|
|
|
/* If we have caps, iterate the existing slots and look for an
|
|
* unlinked one that can be used */
|
|
if (caps && gst_caps_is_fixed (caps)) {
|
|
GSList *cur;
|
|
GstCaps *cur_caps;
|
|
|
|
for (cur = urisrc->out_slots; cur != NULL; cur = g_slist_next (cur)) {
|
|
slot = (OutputSlotInfo *) (cur->data);
|
|
if (slot->linked_info == NULL) {
|
|
cur_caps = gst_pad_get_current_caps (slot->sinkpad);
|
|
if (cur_caps == NULL || gst_caps_is_equal (caps, cur_caps)) {
|
|
GST_LOG_OBJECT (urisrc, "Found existing slot %p to link to", slot);
|
|
gst_caps_unref (cur_caps);
|
|
slot->is_eos = FALSE;
|
|
return slot;
|
|
}
|
|
gst_caps_unref (cur_caps);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Otherwise create the new slot */
|
|
if (do_download)
|
|
elem_name = "downloadbuffer";
|
|
else
|
|
elem_name = "queue2";
|
|
|
|
queue = gst_element_factory_make (elem_name, NULL);
|
|
if (!queue)
|
|
goto no_buffer_element;
|
|
|
|
slot = g_new0 (OutputSlotInfo, 1);
|
|
slot->queue = queue;
|
|
|
|
/* Set the slot onto the queue (needed in buffering msg handling) */
|
|
g_object_set_data (G_OBJECT (queue), "urisourcebin.slotinfo", slot);
|
|
|
|
slot->bitrate_changed_id =
|
|
g_signal_connect (G_OBJECT (queue), "notify::bitrate",
|
|
(GCallback) on_queue_bitrate_changed, urisrc);
|
|
|
|
if (do_download) {
|
|
gchar *temp_template, *filename;
|
|
const gchar *tmp_dir, *prgname;
|
|
|
|
tmp_dir = g_get_user_cache_dir ();
|
|
prgname = g_get_prgname ();
|
|
if (prgname == NULL)
|
|
prgname = "GStreamer";
|
|
|
|
filename = g_strdup_printf ("%s-XXXXXX", prgname);
|
|
|
|
/* build our filename */
|
|
temp_template = g_build_filename (tmp_dir, filename, NULL);
|
|
|
|
GST_DEBUG_OBJECT (urisrc, "enable download buffering in %s (%s, %s, %s)",
|
|
temp_template, tmp_dir, prgname, filename);
|
|
|
|
/* configure progressive download for selected media types */
|
|
g_object_set (queue, "temp-template", temp_template, NULL);
|
|
|
|
g_free (filename);
|
|
g_free (temp_template);
|
|
} else {
|
|
if (is_adaptive) {
|
|
GST_LOG_OBJECT (urisrc, "Adding queue for adaptive streaming stream");
|
|
g_object_set (queue, "use-buffering", urisrc->use_buffering,
|
|
"use-tags-bitrate", TRUE, "use-rate-estimate", FALSE, NULL);
|
|
} else {
|
|
GST_LOG_OBJECT (urisrc, "Adding queue for buffering");
|
|
g_object_set (queue, "use-buffering", urisrc->use_buffering, NULL);
|
|
}
|
|
|
|
g_object_set (queue, "ring-buffer-max-size",
|
|
urisrc->ring_buffer_max_size, NULL);
|
|
/* Disable max-size-buffers - queue based on data rate to the default time limit */
|
|
g_object_set (queue, "max-size-buffers", 0, NULL);
|
|
|
|
/* Don't start buffering until the queue is empty (< 1%).
|
|
* Start playback when the queue is 60% full, leaving a bit more room
|
|
* for upstream to push more without getting bursty */
|
|
g_object_set (queue, "low-percent", 1, "high-percent", 60, NULL);
|
|
|
|
g_object_set (queue, "low-watermark", urisrc->low_watermark,
|
|
"high-watermark", urisrc->high_watermark, NULL);
|
|
}
|
|
|
|
/* set the necessary limits on the queue-like elements */
|
|
g_object_set (queue, "max-size-bytes", GET_BUFFER_SIZE (urisrc),
|
|
"max-size-time", (guint64) GET_BUFFER_DURATION (urisrc), NULL);
|
|
#if 0
|
|
/* Disabled because this makes initial startup slower for radio streams */
|
|
else {
|
|
/* Buffer 4 seconds by default - some extra headroom over the
|
|
* core default, because we trigger playback sooner */
|
|
//g_object_set (queue, "max-size-time", 4 * GST_SECOND, NULL);
|
|
}
|
|
#endif
|
|
|
|
/* save queue pointer so we can remove it later */
|
|
urisrc->out_slots = g_slist_prepend (urisrc->out_slots, slot);
|
|
|
|
gst_bin_add (GST_BIN_CAST (urisrc), queue);
|
|
gst_element_sync_state_with_parent (queue);
|
|
|
|
slot->sinkpad = gst_element_get_static_pad (queue, "sink");
|
|
|
|
/* get the new raw srcpad */
|
|
srcpad = gst_element_get_static_pad (queue, "src");
|
|
g_object_set_data (G_OBJECT (srcpad), "urisourcebin.slotinfo", slot);
|
|
|
|
slot->srcpad = create_output_pad (urisrc, srcpad);
|
|
|
|
gst_object_unref (srcpad);
|
|
|
|
return slot;
|
|
|
|
no_buffer_element:
|
|
{
|
|
post_missing_plugin_error (GST_ELEMENT_CAST (urisrc), elem_name);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static GstPadProbeReturn
|
|
source_pad_event_probe (GstPad * pad, GstPadProbeInfo * info,
|
|
gpointer user_data)
|
|
{
|
|
GstEvent *event = GST_PAD_PROBE_INFO_EVENT (info);
|
|
GstURISourceBin *urisrc = user_data;
|
|
|
|
GST_LOG_OBJECT (pad, "%s, urisrc %p", GST_EVENT_TYPE_NAME (event), event);
|
|
|
|
if (GST_EVENT_TYPE (event) == GST_EVENT_EOS &&
|
|
gst_mini_object_get_qdata (GST_MINI_OBJECT_CAST (event),
|
|
CUSTOM_EOS_QUARK)) {
|
|
OutputSlotInfo *slot;
|
|
GST_DEBUG_OBJECT (pad, "we received EOS");
|
|
|
|
/* remove custom-eos */
|
|
gst_mini_object_set_qdata (GST_MINI_OBJECT_CAST (event), CUSTOM_EOS_QUARK,
|
|
NULL, NULL);
|
|
|
|
GST_URI_SOURCE_BIN_LOCK (urisrc);
|
|
|
|
slot = g_object_get_data (G_OBJECT (pad), "urisourcebin.slotinfo");
|
|
|
|
if (slot) {
|
|
GstEvent *eos;
|
|
guint32 seqnum;
|
|
|
|
if (slot->linked_info) {
|
|
if (slot->is_eos) {
|
|
/* linked_info is old input which is still linked without removal */
|
|
GST_DEBUG_OBJECT (pad, "push actual EOS");
|
|
seqnum = gst_event_get_seqnum (event);
|
|
eos = gst_event_new_eos ();
|
|
gst_event_set_seqnum (eos, seqnum);
|
|
gst_pad_push_event (slot->srcpad, eos);
|
|
} else {
|
|
/* Do not clear output slot yet. A new input was
|
|
* connected. We should just drop this EOS */
|
|
}
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
return GST_PAD_PROBE_DROP;
|
|
}
|
|
|
|
seqnum = gst_event_get_seqnum (event);
|
|
eos = gst_event_new_eos ();
|
|
gst_event_set_seqnum (eos, seqnum);
|
|
gst_pad_push_event (slot->srcpad, eos);
|
|
free_output_slot_async (urisrc, slot);
|
|
}
|
|
|
|
/* FIXME: Only emit drained if all output pads are done and there's no
|
|
* pending pads */
|
|
g_signal_emit (urisrc, gst_uri_source_bin_signals[SIGNAL_DRAINED], 0, NULL);
|
|
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
return GST_PAD_PROBE_DROP;
|
|
}
|
|
/* never drop events */
|
|
return GST_PAD_PROBE_OK;
|
|
}
|
|
|
|
/* called when we found a raw pad to expose. We set up a
|
|
* padprobe to detect EOS before exposing the pad.
|
|
* Called with LOCK held. */
|
|
static GstPad *
|
|
create_output_pad (GstURISourceBin * urisrc, GstPad * pad)
|
|
{
|
|
GstPad *newpad;
|
|
GstPadTemplate *pad_tmpl;
|
|
gchar *padname;
|
|
|
|
gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM,
|
|
source_pad_event_probe, urisrc, NULL);
|
|
|
|
pad_tmpl = gst_static_pad_template_get (&srctemplate);
|
|
|
|
padname = g_strdup_printf ("src_%u", urisrc->numpads);
|
|
urisrc->numpads++;
|
|
|
|
newpad = gst_ghost_pad_new_from_template (padname, pad, pad_tmpl);
|
|
gst_object_unref (pad_tmpl);
|
|
g_free (padname);
|
|
|
|
GST_DEBUG_OBJECT (urisrc, "Created output pad %s:%s for pad %s:%s",
|
|
GST_DEBUG_PAD_NAME (newpad), GST_DEBUG_PAD_NAME (pad));
|
|
|
|
return newpad;
|
|
}
|
|
|
|
static void
|
|
expose_output_pad (GstURISourceBin * urisrc, GstPad * pad)
|
|
{
|
|
GstPad *target;
|
|
|
|
if (gst_object_has_as_parent (GST_OBJECT (pad), GST_OBJECT (urisrc)))
|
|
return; /* Pad is already exposed */
|
|
|
|
target = gst_ghost_pad_get_target (GST_GHOST_PAD (pad));
|
|
|
|
gst_pad_sticky_events_foreach (target, copy_sticky_events, pad);
|
|
gst_object_unref (target);
|
|
|
|
GST_DEBUG_OBJECT (urisrc, "Exposing pad %s:%s", GST_DEBUG_PAD_NAME (pad));
|
|
|
|
gst_pad_set_active (pad, TRUE);
|
|
gst_element_add_pad (GST_ELEMENT_CAST (urisrc), pad);
|
|
}
|
|
|
|
static void
|
|
expose_raw_output_pad (GstURISourceBin * urisrc, GstPad * srcpad,
|
|
GstPad * output_pad)
|
|
{
|
|
ChildSrcPadInfo *info = g_new0 (ChildSrcPadInfo, 1);
|
|
info->src_pad = srcpad;
|
|
info->output_pad = gst_object_ref (output_pad);
|
|
|
|
g_assert (g_object_get_data (G_OBJECT (srcpad),
|
|
"urisourcebin.srcpadinfo") == NULL);
|
|
|
|
g_object_set_data_full (G_OBJECT (srcpad), "urisourcebin.srcpadinfo",
|
|
info, (GDestroyNotify) free_child_src_pad_info);
|
|
|
|
expose_output_pad (urisrc, output_pad);
|
|
}
|
|
|
|
static void
|
|
remove_output_pad (GstURISourceBin * urisrc, GstPad * pad)
|
|
{
|
|
if (!gst_object_has_as_parent (GST_OBJECT (pad), GST_OBJECT (urisrc)))
|
|
return; /* Pad is not exposed */
|
|
|
|
GST_DEBUG_OBJECT (urisrc, "Removing pad %s:%s", GST_DEBUG_PAD_NAME (pad));
|
|
|
|
gst_pad_set_active (pad, FALSE);
|
|
gst_element_remove_pad (GST_ELEMENT_CAST (urisrc), pad);
|
|
}
|
|
|
|
static void
|
|
pad_removed_cb (GstElement * element, GstPad * pad, GstURISourceBin * urisrc)
|
|
{
|
|
ChildSrcPadInfo *info;
|
|
|
|
GST_DEBUG_OBJECT (element, "pad removed name: <%s:%s>",
|
|
GST_DEBUG_PAD_NAME (pad));
|
|
|
|
/* we only care about srcpads */
|
|
if (!GST_PAD_IS_SRC (pad))
|
|
return;
|
|
|
|
if (!(info = g_object_get_data (G_OBJECT (pad), "urisourcebin.srcpadinfo")))
|
|
goto no_info;
|
|
|
|
GST_URI_SOURCE_BIN_LOCK (urisrc);
|
|
/* Make sure this isn't in the pending pads list */
|
|
urisrc->pending_pads = g_list_remove (urisrc->pending_pads, pad);
|
|
|
|
/* Send EOS to the output slot if the demuxer didn't already */
|
|
if (info->output_slot) {
|
|
GstStructure *s;
|
|
GstEvent *event;
|
|
OutputSlotInfo *slot;
|
|
|
|
slot = info->output_slot;
|
|
|
|
if (!slot->is_eos && urisrc->pending_pads &&
|
|
link_pending_pad_to_output (urisrc, slot)) {
|
|
/* Found a new source pad to give this slot data - no need to send EOS */
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
return;
|
|
}
|
|
|
|
BUFFERING_LOCK (urisrc);
|
|
/* Unlink this pad from its output slot and send a fake EOS event
|
|
* to drain the queue */
|
|
slot->is_eos = TRUE;
|
|
BUFFERING_UNLOCK (urisrc);
|
|
|
|
remove_buffering_msgs (urisrc, GST_OBJECT_CAST (slot->queue));
|
|
|
|
slot->linked_info = NULL;
|
|
|
|
info->output_slot = NULL;
|
|
|
|
GST_LOG_OBJECT (element,
|
|
"Pad %" GST_PTR_FORMAT " was removed without EOS. Sending.", pad);
|
|
|
|
event = gst_event_new_eos ();
|
|
s = gst_event_writable_structure (event);
|
|
gst_structure_set (s, "urisourcebin-custom-eos", G_TYPE_BOOLEAN, TRUE,
|
|
NULL);
|
|
gst_pad_send_event (slot->sinkpad, event);
|
|
} else if (info->output_pad != NULL) {
|
|
GST_LOG_OBJECT (element,
|
|
"Pad %" GST_PTR_FORMAT " was removed. Unexposing %" GST_PTR_FORMAT,
|
|
pad, info->output_pad);
|
|
remove_output_pad (urisrc, info->output_pad);
|
|
} else {
|
|
GST_LOG_OBJECT (urisrc, "Removed pad has no output slot or pad");
|
|
}
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
|
|
return;
|
|
|
|
/* ERRORS */
|
|
no_info:
|
|
{
|
|
GST_WARNING_OBJECT (element, "no info found for pad");
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* helper function to lookup stuff in lists */
|
|
static gboolean
|
|
array_has_value (const gchar * values[], const gchar * value)
|
|
{
|
|
gint i;
|
|
|
|
for (i = 0; values[i]; i++) {
|
|
if (g_str_has_prefix (value, values[i]))
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
array_has_uri_value (const gchar * values[], const gchar * value)
|
|
{
|
|
gint i;
|
|
|
|
for (i = 0; values[i]; i++) {
|
|
if (!g_ascii_strncasecmp (value, values[i], strlen (values[i])))
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
/* list of URIs that we consider to be streams and that need buffering.
|
|
* We have no mechanism yet to figure this out with a query. */
|
|
static const gchar *stream_uris[] = { "http://", "https://", "mms://",
|
|
"mmsh://", "mmsu://", "mmst://", "fd://", "myth://", "ssh://",
|
|
"ftp://", "sftp://",
|
|
NULL
|
|
};
|
|
|
|
/* list of URIs that need a queue because they are pretty bursty */
|
|
static const gchar *queue_uris[] = { "cdda://", NULL };
|
|
|
|
/* blacklisted URIs, we know they will always fail. */
|
|
static const gchar *blacklisted_uris[] = { NULL };
|
|
|
|
/* media types that use adaptive streaming */
|
|
static const gchar *adaptive_media[] = {
|
|
"application/x-hls", "application/vnd.ms-sstr+xml",
|
|
"application/dash+xml", NULL
|
|
};
|
|
|
|
#define IS_STREAM_URI(uri) (array_has_uri_value (stream_uris, uri))
|
|
#define IS_QUEUE_URI(uri) (array_has_uri_value (queue_uris, uri))
|
|
#define IS_BLACKLISTED_URI(uri) (array_has_uri_value (blacklisted_uris, uri))
|
|
#define IS_ADAPTIVE_MEDIA(media) (array_has_value (adaptive_media, media))
|
|
|
|
/*
|
|
* Generate and configure a source element.
|
|
*/
|
|
static GstElement *
|
|
gen_source_element (GstURISourceBin * urisrc)
|
|
{
|
|
GObjectClass *source_class;
|
|
GstElement *source;
|
|
GParamSpec *pspec;
|
|
GstQuery *query;
|
|
GstSchedulingFlags flags;
|
|
GError *err = NULL;
|
|
|
|
if (!urisrc->uri)
|
|
goto no_uri;
|
|
|
|
GST_LOG_OBJECT (urisrc, "finding source for %s", urisrc->uri);
|
|
|
|
if (!gst_uri_is_valid (urisrc->uri))
|
|
goto invalid_uri;
|
|
|
|
if (IS_BLACKLISTED_URI (urisrc->uri))
|
|
goto uri_blacklisted;
|
|
|
|
source = gst_element_make_from_uri (GST_URI_SRC, urisrc->uri, NULL, &err);
|
|
if (!source)
|
|
goto no_source;
|
|
|
|
GST_LOG_OBJECT (urisrc, "found source type %s", G_OBJECT_TYPE_NAME (source));
|
|
|
|
urisrc->is_stream = IS_STREAM_URI (urisrc->uri);
|
|
|
|
query = gst_query_new_scheduling ();
|
|
if (gst_element_query (source, query)) {
|
|
gst_query_parse_scheduling (query, &flags, NULL, NULL, NULL);
|
|
if ((flags & GST_SCHEDULING_FLAG_BANDWIDTH_LIMITED))
|
|
urisrc->is_stream = TRUE;
|
|
}
|
|
gst_query_unref (query);
|
|
|
|
GST_LOG_OBJECT (urisrc, "source is stream: %d", urisrc->is_stream);
|
|
|
|
urisrc->need_queue = IS_QUEUE_URI (urisrc->uri);
|
|
GST_LOG_OBJECT (urisrc, "source needs queue: %d", urisrc->need_queue);
|
|
|
|
source_class = G_OBJECT_GET_CLASS (source);
|
|
|
|
pspec = g_object_class_find_property (source_class, "connection-speed");
|
|
if (pspec != NULL) {
|
|
guint64 speed = urisrc->connection_speed / 1000;
|
|
gboolean wrong_type = FALSE;
|
|
|
|
if (G_PARAM_SPEC_TYPE (pspec) == G_TYPE_PARAM_UINT) {
|
|
GParamSpecUInt *pspecuint = G_PARAM_SPEC_UINT (pspec);
|
|
|
|
speed = CLAMP (speed, pspecuint->minimum, pspecuint->maximum);
|
|
} else if (G_PARAM_SPEC_TYPE (pspec) == G_TYPE_PARAM_INT) {
|
|
GParamSpecInt *pspecint = G_PARAM_SPEC_INT (pspec);
|
|
|
|
speed = CLAMP (speed, pspecint->minimum, pspecint->maximum);
|
|
} else if (G_PARAM_SPEC_TYPE (pspec) == G_TYPE_PARAM_UINT64) {
|
|
GParamSpecUInt64 *pspecuint = G_PARAM_SPEC_UINT64 (pspec);
|
|
|
|
speed = CLAMP (speed, pspecuint->minimum, pspecuint->maximum);
|
|
} else if (G_PARAM_SPEC_TYPE (pspec) == G_TYPE_PARAM_INT64) {
|
|
GParamSpecInt64 *pspecint = G_PARAM_SPEC_INT64 (pspec);
|
|
|
|
speed = CLAMP (speed, pspecint->minimum, pspecint->maximum);
|
|
} else {
|
|
GST_WARNING_OBJECT (urisrc,
|
|
"The connection speed property %" G_GUINT64_FORMAT
|
|
" of type %s is not useful. Not setting it", speed,
|
|
g_type_name (G_PARAM_SPEC_TYPE (pspec)));
|
|
wrong_type = TRUE;
|
|
}
|
|
|
|
if (!wrong_type) {
|
|
g_object_set (source, "connection-speed", speed, NULL);
|
|
|
|
GST_DEBUG_OBJECT (urisrc,
|
|
"setting connection-speed=%" G_GUINT64_FORMAT " to source element",
|
|
speed);
|
|
}
|
|
}
|
|
|
|
return source;
|
|
|
|
/* ERRORS */
|
|
no_uri:
|
|
{
|
|
GST_ELEMENT_ERROR (urisrc, RESOURCE, NOT_FOUND,
|
|
(_("No URI specified to play from.")), (NULL));
|
|
return NULL;
|
|
}
|
|
invalid_uri:
|
|
{
|
|
GST_ELEMENT_ERROR (urisrc, RESOURCE, NOT_FOUND,
|
|
(_("Invalid URI \"%s\"."), urisrc->uri), (NULL));
|
|
g_clear_error (&err);
|
|
return NULL;
|
|
}
|
|
uri_blacklisted:
|
|
{
|
|
GST_ELEMENT_ERROR (urisrc, RESOURCE, FAILED,
|
|
(_("This stream type cannot be played yet.")), (NULL));
|
|
return NULL;
|
|
}
|
|
no_source:
|
|
{
|
|
/* whoops, could not create the source element, dig a little deeper to
|
|
* figure out what might be wrong. */
|
|
if (err != NULL && err->code == GST_URI_ERROR_UNSUPPORTED_PROTOCOL) {
|
|
gchar *prot;
|
|
|
|
prot = gst_uri_get_protocol (urisrc->uri);
|
|
if (prot == NULL)
|
|
goto invalid_uri;
|
|
|
|
gst_element_post_message (GST_ELEMENT_CAST (urisrc),
|
|
gst_missing_uri_source_message_new (GST_ELEMENT (urisrc), prot));
|
|
|
|
GST_ELEMENT_ERROR (urisrc, CORE, MISSING_PLUGIN,
|
|
(_("No URI handler implemented for \"%s\"."), prot), (NULL));
|
|
|
|
g_free (prot);
|
|
} else {
|
|
GST_ELEMENT_ERROR (urisrc, RESOURCE, NOT_FOUND,
|
|
("%s", (err) ? err->message : "URI was not accepted by any element"),
|
|
("No element accepted URI '%s'", urisrc->uri));
|
|
}
|
|
|
|
g_clear_error (&err);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
is_all_raw_caps (GstCaps * caps, GstCaps * rawcaps, gboolean * all_raw)
|
|
{
|
|
GstCaps *intersection;
|
|
gint capssize;
|
|
gboolean res = FALSE;
|
|
|
|
if (caps == NULL)
|
|
return FALSE;
|
|
|
|
capssize = gst_caps_get_size (caps);
|
|
/* no caps, skip and move to the next pad */
|
|
if (capssize == 0 || gst_caps_is_empty (caps) || gst_caps_is_any (caps))
|
|
goto done;
|
|
|
|
intersection = gst_caps_intersect (caps, rawcaps);
|
|
*all_raw = !gst_caps_is_empty (intersection)
|
|
&& (gst_caps_get_size (intersection) == capssize);
|
|
gst_caps_unref (intersection);
|
|
|
|
res = TRUE;
|
|
|
|
done:
|
|
return res;
|
|
}
|
|
|
|
/**
|
|
* has_all_raw_caps:
|
|
* @pad: a #GstPad
|
|
* @all_raw: pointer to hold the result
|
|
*
|
|
* check if the caps of the pad are all raw. The caps are all raw if
|
|
* all of its structures contain audio/x-raw or video/x-raw.
|
|
*
|
|
* Returns: %FALSE @pad has no caps. Else TRUE and @all_raw set t the result.
|
|
*/
|
|
static gboolean
|
|
has_all_raw_caps (GstPad * pad, GstCaps * rawcaps, gboolean * all_raw)
|
|
{
|
|
GstCaps *caps;
|
|
gboolean res = FALSE;
|
|
|
|
caps = gst_pad_query_caps (pad, NULL);
|
|
|
|
GST_DEBUG_OBJECT (pad, "have caps %" GST_PTR_FORMAT, caps);
|
|
|
|
res = is_all_raw_caps (caps, rawcaps, all_raw);
|
|
|
|
gst_caps_unref (caps);
|
|
return res;
|
|
}
|
|
|
|
static void
|
|
post_missing_plugin_error (GstElement * urisrc, const gchar * element_name)
|
|
{
|
|
GstMessage *msg;
|
|
|
|
msg = gst_missing_element_message_new (urisrc, element_name);
|
|
gst_element_post_message (urisrc, msg);
|
|
|
|
GST_ELEMENT_ERROR (urisrc, CORE, MISSING_PLUGIN,
|
|
(_("Missing element '%s' - check your GStreamer installation."),
|
|
element_name), (NULL));
|
|
}
|
|
|
|
/**
|
|
* analyse_source:
|
|
* @urisrc: a #GstURISourceBin
|
|
* @is_raw: are all pads raw data
|
|
* @have_out: does the source have output
|
|
* @is_dynamic: is this a dynamic source
|
|
* @use_queue: put a queue before raw output pads
|
|
*
|
|
* Check the source of @urisrc and collect information about it.
|
|
*
|
|
* @is_raw will be set to TRUE if the source only produces raw pads. When this
|
|
* function returns, all of the raw pad of the source will be added
|
|
* to @urisrc
|
|
*
|
|
* @have_out: will be set to TRUE if the source has output pads.
|
|
*
|
|
* @is_dynamic: TRUE if the element will create (more) pads dynamically later
|
|
* on.
|
|
*
|
|
* Returns: FALSE if a fatal error occurred while scanning.
|
|
*/
|
|
static gboolean
|
|
analyse_source (GstURISourceBin * urisrc, gboolean * is_raw,
|
|
gboolean * have_out, gboolean * is_dynamic, gboolean use_queue)
|
|
{
|
|
GstElementClass *elemclass;
|
|
GList *walk;
|
|
GstIterator *pads_iter;
|
|
gboolean done = FALSE;
|
|
gboolean res = TRUE;
|
|
GstPad *pad;
|
|
GValue item = { 0, };
|
|
GstCaps *rawcaps = DEFAULT_CAPS;
|
|
|
|
*have_out = FALSE;
|
|
*is_raw = FALSE;
|
|
*is_dynamic = FALSE;
|
|
|
|
pads_iter = gst_element_iterate_src_pads (urisrc->source);
|
|
while (!done) {
|
|
switch (gst_iterator_next (pads_iter, &item)) {
|
|
case GST_ITERATOR_ERROR:
|
|
res = FALSE;
|
|
/* FALLTHROUGH */
|
|
case GST_ITERATOR_DONE:
|
|
done = TRUE;
|
|
break;
|
|
case GST_ITERATOR_RESYNC:
|
|
/* reset results and resync */
|
|
*have_out = FALSE;
|
|
*is_raw = FALSE;
|
|
*is_dynamic = FALSE;
|
|
gst_iterator_resync (pads_iter);
|
|
break;
|
|
case GST_ITERATOR_OK:
|
|
pad = g_value_dup_object (&item);
|
|
/* we now officially have an output pad */
|
|
*have_out = TRUE;
|
|
|
|
/* if FALSE, this pad has no caps and we continue with the next pad. */
|
|
if (!has_all_raw_caps (pad, rawcaps, is_raw)) {
|
|
gst_object_unref (pad);
|
|
g_value_reset (&item);
|
|
break;
|
|
}
|
|
|
|
/* caps on source pad are all raw, we can add the pad */
|
|
if (*is_raw) {
|
|
GstPad *output_pad;
|
|
|
|
GST_URI_SOURCE_BIN_LOCK (urisrc);
|
|
if (use_queue) {
|
|
OutputSlotInfo *slot = get_output_slot (urisrc, FALSE, FALSE, NULL);
|
|
if (!slot)
|
|
goto no_slot;
|
|
|
|
gst_pad_link (pad, slot->sinkpad);
|
|
|
|
/* get the new raw srcpad */
|
|
output_pad = gst_object_ref (slot->srcpad);
|
|
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
|
|
expose_output_pad (urisrc, output_pad);
|
|
gst_object_unref (output_pad);
|
|
} else {
|
|
output_pad = create_output_pad (urisrc, pad);
|
|
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
|
|
expose_raw_output_pad (urisrc, pad, output_pad);
|
|
}
|
|
gst_object_unref (pad);
|
|
} else {
|
|
gst_object_unref (pad);
|
|
}
|
|
g_value_reset (&item);
|
|
break;
|
|
}
|
|
}
|
|
g_value_unset (&item);
|
|
gst_iterator_free (pads_iter);
|
|
gst_caps_unref (rawcaps);
|
|
|
|
/* check for padtemplates that list SOMETIMES pads to
|
|
* determine if the element is dynamic. */
|
|
elemclass = GST_ELEMENT_GET_CLASS (urisrc->source);
|
|
walk = gst_element_class_get_pad_template_list (elemclass);
|
|
while (walk != NULL) {
|
|
GstPadTemplate *templ;
|
|
|
|
templ = (GstPadTemplate *) walk->data;
|
|
if (GST_PAD_TEMPLATE_DIRECTION (templ) == GST_PAD_SRC) {
|
|
if (GST_PAD_TEMPLATE_PRESENCE (templ) == GST_PAD_SOMETIMES)
|
|
*is_dynamic = TRUE;
|
|
break;
|
|
}
|
|
walk = g_list_next (walk);
|
|
}
|
|
|
|
return res;
|
|
no_slot:
|
|
{
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
gst_object_unref (pad);
|
|
g_value_unset (&item);
|
|
gst_iterator_free (pads_iter);
|
|
gst_caps_unref (rawcaps);
|
|
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/* Remove any adaptive demuxer element */
|
|
static void
|
|
remove_demuxer (GstURISourceBin * bin)
|
|
{
|
|
if (bin->demuxer) {
|
|
GST_DEBUG_OBJECT (bin, "removing old demuxer element");
|
|
gst_element_set_state (bin->demuxer, GST_STATE_NULL);
|
|
gst_bin_remove (GST_BIN_CAST (bin), bin->demuxer);
|
|
bin->demuxer = NULL;
|
|
}
|
|
}
|
|
|
|
/* make a demuxer and connect to all the signals */
|
|
static GstElement *
|
|
make_demuxer (GstURISourceBin * urisrc, GstCaps * caps)
|
|
{
|
|
GList *factories, *eligible, *cur;
|
|
GstElement *demuxer = NULL;
|
|
GParamSpec *pspec;
|
|
|
|
GST_LOG_OBJECT (urisrc, "making new adaptive demuxer");
|
|
|
|
/* now create the demuxer element */
|
|
|
|
/* FIXME: Fire a signal to get the demuxer? */
|
|
factories = gst_element_factory_list_get_elements
|
|
(GST_ELEMENT_FACTORY_TYPE_DEMUXER, GST_RANK_MARGINAL);
|
|
eligible =
|
|
gst_element_factory_list_filter (factories, caps, GST_PAD_SINK,
|
|
gst_caps_is_fixed (caps));
|
|
gst_plugin_feature_list_free (factories);
|
|
|
|
if (eligible == NULL)
|
|
goto no_demuxer;
|
|
|
|
eligible = g_list_sort (eligible, gst_plugin_feature_rank_compare_func);
|
|
|
|
for (cur = eligible; cur != NULL; cur = g_list_next (cur)) {
|
|
GstElementFactory *factory = (GstElementFactory *) (cur->data);
|
|
const gchar *klass =
|
|
gst_element_factory_get_metadata (factory, GST_ELEMENT_METADATA_KLASS);
|
|
|
|
/* Can't be a demuxer unless it has Demux in the klass name */
|
|
if (!strstr (klass, "Demux") || !strstr (klass, "Adaptive"))
|
|
continue;
|
|
|
|
demuxer = gst_element_factory_create (factory, NULL);
|
|
break;
|
|
}
|
|
gst_plugin_feature_list_free (eligible);
|
|
|
|
if (!demuxer)
|
|
goto no_demuxer;
|
|
|
|
GST_DEBUG_OBJECT (urisrc, "Created adaptive demuxer %" GST_PTR_FORMAT,
|
|
demuxer);
|
|
|
|
/* set up callbacks to create the links between
|
|
* demuxer streams and output */
|
|
g_signal_connect (demuxer,
|
|
"pad-added", G_CALLBACK (new_demuxer_pad_added_cb), urisrc);
|
|
g_signal_connect (demuxer,
|
|
"pad-removed", G_CALLBACK (pad_removed_cb), urisrc);
|
|
|
|
/* Propagate connection-speed property */
|
|
pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (demuxer),
|
|
"connection-speed");
|
|
if (pspec != NULL)
|
|
g_object_set (demuxer,
|
|
"connection-speed", urisrc->connection_speed / 1000, NULL);
|
|
|
|
return demuxer;
|
|
|
|
/* ERRORS */
|
|
no_demuxer:
|
|
{
|
|
/* FIXME: Fire the right error */
|
|
GST_ELEMENT_ERROR (urisrc, CORE, MISSING_PLUGIN, (NULL),
|
|
("No demuxer element, check your installation"));
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
handle_new_pad (GstURISourceBin * urisrc, GstPad * srcpad, GstCaps * caps)
|
|
{
|
|
gboolean is_raw;
|
|
GstStructure *s;
|
|
const gchar *media_type;
|
|
gboolean do_download = FALSE;
|
|
|
|
GST_URI_SOURCE_BIN_LOCK (urisrc);
|
|
|
|
/* if this is a pad with all raw caps, we can expose it */
|
|
if (is_all_raw_caps (caps, DEFAULT_CAPS, &is_raw) && is_raw) {
|
|
GstPad *output_pad;
|
|
|
|
GST_DEBUG_OBJECT (urisrc, "Found pad with raw caps %" GST_PTR_FORMAT
|
|
", exposing", caps);
|
|
output_pad = create_output_pad (urisrc, srcpad);
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
|
|
expose_raw_output_pad (urisrc, srcpad, output_pad);
|
|
return;
|
|
}
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
|
|
s = gst_caps_get_structure (caps, 0);
|
|
media_type = gst_structure_get_name (s);
|
|
|
|
urisrc->is_adaptive = IS_ADAPTIVE_MEDIA (media_type);
|
|
|
|
if (urisrc->is_adaptive) {
|
|
GstPad *sinkpad;
|
|
GstPadLinkReturn link_res;
|
|
|
|
urisrc->demuxer = make_demuxer (urisrc, caps);
|
|
if (!urisrc->demuxer)
|
|
goto no_demuxer;
|
|
gst_bin_add (GST_BIN_CAST (urisrc), urisrc->demuxer);
|
|
|
|
sinkpad = gst_element_get_static_pad (urisrc->demuxer, "sink");
|
|
if (sinkpad == NULL)
|
|
goto no_demuxer_sink;
|
|
|
|
link_res = gst_pad_link (srcpad, sinkpad);
|
|
|
|
gst_object_unref (sinkpad);
|
|
if (link_res != GST_PAD_LINK_OK)
|
|
goto could_not_link;
|
|
|
|
gst_element_sync_state_with_parent (urisrc->demuxer);
|
|
} else if (!urisrc->is_stream) {
|
|
GstPad *output_pad;
|
|
/* We don't need slot here, expose immediately */
|
|
GST_URI_SOURCE_BIN_LOCK (urisrc);
|
|
output_pad = create_output_pad (urisrc, srcpad);
|
|
expose_raw_output_pad (urisrc, srcpad, output_pad);
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
} else {
|
|
OutputSlotInfo *slot;
|
|
GstPad *output_pad;
|
|
|
|
/* only enable download buffering if the upstream duration is known */
|
|
if (urisrc->download) {
|
|
GstQuery *query = gst_query_new_duration (GST_FORMAT_BYTES);
|
|
if (gst_pad_query (srcpad, query)) {
|
|
gint64 dur;
|
|
gst_query_parse_duration (query, NULL, &dur);
|
|
do_download = (dur != -1);
|
|
}
|
|
gst_query_unref (query);
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (urisrc, "check media-type %s, do_download:%d", media_type,
|
|
do_download);
|
|
|
|
GST_URI_SOURCE_BIN_LOCK (urisrc);
|
|
slot = get_output_slot (urisrc, do_download, FALSE, NULL);
|
|
|
|
if (slot == NULL || gst_pad_link (srcpad, slot->sinkpad) != GST_PAD_LINK_OK)
|
|
goto could_not_link;
|
|
|
|
gst_pad_add_probe (srcpad, GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM,
|
|
pre_queue_event_probe, urisrc, NULL);
|
|
|
|
output_pad = gst_object_ref (slot->srcpad);
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
|
|
expose_output_pad (urisrc, output_pad);
|
|
gst_object_unref (output_pad);
|
|
}
|
|
|
|
return;
|
|
|
|
/* ERRORS */
|
|
no_demuxer:
|
|
{
|
|
/* error was posted */
|
|
return;
|
|
}
|
|
no_demuxer_sink:
|
|
{
|
|
GST_ELEMENT_ERROR (urisrc, CORE, NEGOTIATION,
|
|
(NULL), ("Adaptive demuxer element has no 'sink' pad"));
|
|
return;
|
|
}
|
|
could_not_link:
|
|
{
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
GST_ELEMENT_ERROR (urisrc, CORE, NEGOTIATION,
|
|
(NULL), ("Can't link typefind to adaptive demuxer element"));
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* signaled when we have a stream and we need to configure the download
|
|
* buffering or regular buffering */
|
|
static void
|
|
type_found (GstElement * typefind, guint probability,
|
|
GstCaps * caps, GstURISourceBin * urisrc)
|
|
{
|
|
GstPad *srcpad = gst_element_get_static_pad (typefind, "src");
|
|
|
|
GST_DEBUG_OBJECT (urisrc, "typefind found caps %" GST_PTR_FORMAT
|
|
" on pad %" GST_PTR_FORMAT, caps, srcpad);
|
|
handle_new_pad (urisrc, srcpad, caps);
|
|
|
|
gst_object_unref (GST_OBJECT (srcpad));
|
|
}
|
|
|
|
/* setup typefind for any source. This will first plug a typefind element to the
|
|
* source. After we find the type, we decide to whether to plug an adaptive
|
|
* demuxer, or just link through queue2 (if needed) and expose the data */
|
|
static gboolean
|
|
setup_typefind (GstURISourceBin * urisrc, GstPad * srcpad)
|
|
{
|
|
GstElement *typefind;
|
|
|
|
/* now create the typefind element */
|
|
typefind = gst_element_factory_make ("typefind", NULL);
|
|
if (!typefind)
|
|
goto no_typefind;
|
|
|
|
/* Make sure the bin doesn't set the typefind running yet */
|
|
gst_element_set_locked_state (typefind, TRUE);
|
|
|
|
gst_bin_add (GST_BIN_CAST (urisrc), typefind);
|
|
|
|
if (!srcpad) {
|
|
if (!gst_element_link_pads (urisrc->source, NULL, typefind, "sink"))
|
|
goto could_not_link;
|
|
} else {
|
|
GstPad *sinkpad = gst_element_get_static_pad (typefind, "sink");
|
|
GstPadLinkReturn ret;
|
|
|
|
ret = gst_pad_link (srcpad, sinkpad);
|
|
gst_object_unref (sinkpad);
|
|
if (ret != GST_PAD_LINK_OK)
|
|
goto could_not_link;
|
|
}
|
|
|
|
urisrc->typefinds = g_list_append (urisrc->typefinds, typefind);
|
|
|
|
/* connect a signal to find out when the typefind element found
|
|
* a type */
|
|
g_signal_connect (typefind, "have-type", G_CALLBACK (type_found), urisrc);
|
|
|
|
/* Now it can start */
|
|
gst_element_set_locked_state (typefind, FALSE);
|
|
gst_element_sync_state_with_parent (typefind);
|
|
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
no_typefind:
|
|
{
|
|
post_missing_plugin_error (GST_ELEMENT_CAST (urisrc), "typefind");
|
|
GST_ELEMENT_ERROR (urisrc, CORE, MISSING_PLUGIN, (NULL),
|
|
("No typefind element, check your installation"));
|
|
return FALSE;
|
|
}
|
|
could_not_link:
|
|
{
|
|
GST_ELEMENT_ERROR (urisrc, CORE, NEGOTIATION,
|
|
(NULL), ("Can't link source to typefind element"));
|
|
gst_bin_remove (GST_BIN_CAST (urisrc), typefind);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static void
|
|
free_output_slot (OutputSlotInfo * slot, GstURISourceBin * urisrc)
|
|
{
|
|
GST_DEBUG_OBJECT (urisrc, "removing old queue element and freeing slot %p",
|
|
slot);
|
|
if (slot->bitrate_changed_id > 0)
|
|
g_signal_handler_disconnect (slot->queue, slot->bitrate_changed_id);
|
|
slot->bitrate_changed_id = 0;
|
|
|
|
gst_element_set_locked_state (slot->queue, TRUE);
|
|
gst_element_set_state (slot->queue, GST_STATE_NULL);
|
|
remove_buffering_msgs (urisrc, GST_OBJECT_CAST (slot->queue));
|
|
gst_bin_remove (GST_BIN_CAST (urisrc), slot->queue);
|
|
|
|
gst_object_unref (slot->sinkpad);
|
|
|
|
/* deactivate and remove the srcpad */
|
|
gst_pad_set_active (slot->srcpad, FALSE);
|
|
gst_element_remove_pad (GST_ELEMENT_CAST (urisrc), slot->srcpad);
|
|
|
|
g_free (slot);
|
|
}
|
|
|
|
static void
|
|
call_free_output_slot (GstURISourceBin * urisrc, OutputSlotInfo * slot)
|
|
{
|
|
GST_LOG_OBJECT (urisrc, "free output slot in thread pool");
|
|
free_output_slot (slot, urisrc);
|
|
}
|
|
|
|
/* must be called with GST_URI_SOURCE_BIN_LOCK */
|
|
static void
|
|
free_output_slot_async (GstURISourceBin * urisrc, OutputSlotInfo * slot)
|
|
{
|
|
GST_LOG_OBJECT (urisrc, "pushing output slot on thread pool to free");
|
|
urisrc->out_slots = g_slist_remove (urisrc->out_slots, slot);
|
|
gst_element_call_async (GST_ELEMENT_CAST (urisrc),
|
|
(GstElementCallAsyncFunc) call_free_output_slot, slot, NULL);
|
|
}
|
|
|
|
static void
|
|
unexpose_src_pads (GstURISourceBin * urisrc, GstElement * element)
|
|
{
|
|
GstIterator *pads_iter;
|
|
GValue item = { 0, };
|
|
gboolean done = FALSE;
|
|
|
|
pads_iter = gst_element_iterate_src_pads (element);
|
|
while (!done) {
|
|
switch (gst_iterator_next (pads_iter, &item)) {
|
|
case GST_ITERATOR_ERROR:
|
|
/* FALLTHROUGH */
|
|
case GST_ITERATOR_DONE:
|
|
done = TRUE;
|
|
break;
|
|
case GST_ITERATOR_RESYNC:
|
|
gst_iterator_resync (pads_iter);
|
|
break;
|
|
case GST_ITERATOR_OK:
|
|
{
|
|
ChildSrcPadInfo *info;
|
|
GstPad *pad = g_value_get_object (&item);
|
|
|
|
if (!(info =
|
|
g_object_get_data (G_OBJECT (pad), "urisourcebin.srcpadinfo")))
|
|
break;
|
|
|
|
if (info->output_pad != NULL)
|
|
remove_output_pad (urisrc, info->output_pad);
|
|
|
|
g_value_reset (&item);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
g_value_unset (&item);
|
|
gst_iterator_free (pads_iter);
|
|
}
|
|
|
|
/* remove source and all related elements */
|
|
static void
|
|
remove_source (GstURISourceBin * urisrc)
|
|
{
|
|
|
|
if (urisrc->source) {
|
|
GstElement *source = urisrc->source;
|
|
|
|
GST_DEBUG_OBJECT (urisrc, "removing old src element");
|
|
unexpose_src_pads (urisrc, source);
|
|
gst_element_set_state (source, GST_STATE_NULL);
|
|
|
|
if (urisrc->src_np_sig_id) {
|
|
g_signal_handler_disconnect (source, urisrc->src_np_sig_id);
|
|
urisrc->src_np_sig_id = 0;
|
|
}
|
|
gst_bin_remove (GST_BIN_CAST (urisrc), source);
|
|
urisrc->source = NULL;
|
|
}
|
|
|
|
if (urisrc->typefinds) {
|
|
GList *iter, *next;
|
|
GST_DEBUG_OBJECT (urisrc, "removing old typefind element");
|
|
for (iter = urisrc->typefinds; iter; iter = next) {
|
|
GstElement *typefind = iter->data;
|
|
|
|
next = g_list_next (iter);
|
|
|
|
unexpose_src_pads (urisrc, typefind);
|
|
gst_element_set_state (typefind, GST_STATE_NULL);
|
|
gst_bin_remove (GST_BIN_CAST (urisrc), typefind);
|
|
}
|
|
g_list_free (urisrc->typefinds);
|
|
urisrc->typefinds = NULL;
|
|
}
|
|
|
|
GST_URI_SOURCE_BIN_LOCK (urisrc);
|
|
g_slist_foreach (urisrc->out_slots, (GFunc) free_output_slot, urisrc);
|
|
g_slist_free (urisrc->out_slots);
|
|
urisrc->out_slots = NULL;
|
|
GST_URI_SOURCE_BIN_UNLOCK (urisrc);
|
|
|
|
if (urisrc->demuxer) {
|
|
GST_DEBUG_OBJECT (urisrc, "removing old adaptive demux element");
|
|
gst_element_set_state (urisrc->demuxer, GST_STATE_NULL);
|
|
gst_bin_remove (GST_BIN_CAST (urisrc), urisrc->demuxer);
|
|
urisrc->demuxer = NULL;
|
|
}
|
|
}
|
|
|
|
/* is called when a dynamic source element created a new pad. */
|
|
static void
|
|
source_new_pad (GstElement * element, GstPad * pad, GstURISourceBin * urisrc)
|
|
{
|
|
GstCaps *caps;
|
|
|
|
GST_DEBUG_OBJECT (urisrc, "Found new pad %s.%s in source element %s",
|
|
GST_DEBUG_PAD_NAME (pad), GST_ELEMENT_NAME (element));
|
|
caps = gst_pad_get_current_caps (pad);
|
|
if (caps == NULL)
|
|
setup_typefind (urisrc, pad);
|
|
else {
|
|
handle_new_pad (urisrc, pad, caps);
|
|
gst_caps_unref (caps);
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
is_live_source (GstElement * source)
|
|
{
|
|
GObjectClass *source_class = NULL;
|
|
gboolean is_live = FALSE;
|
|
GParamSpec *pspec;
|
|
|
|
source_class = G_OBJECT_GET_CLASS (source);
|
|
pspec = g_object_class_find_property (source_class, "is-live");
|
|
if (!pspec || G_PARAM_SPEC_VALUE_TYPE (pspec) != G_TYPE_BOOLEAN)
|
|
return FALSE;
|
|
|
|
g_object_get (G_OBJECT (source), "is-live", &is_live, NULL);
|
|
|
|
return is_live;
|
|
}
|
|
|
|
/* construct and run the source and demuxer elements until we found
|
|
* all the streams or until a preroll queue has been filled.
|
|
*/
|
|
static gboolean
|
|
setup_source (GstURISourceBin * urisrc)
|
|
{
|
|
gboolean is_raw, have_out, is_dynamic;
|
|
|
|
GST_DEBUG_OBJECT (urisrc, "setup source");
|
|
|
|
/* delete old src */
|
|
remove_source (urisrc);
|
|
|
|
/* create and configure an element that can handle the uri */
|
|
if (!(urisrc->source = gen_source_element (urisrc)))
|
|
goto no_source;
|
|
|
|
/* state will be merged later - if file is not found, error will be
|
|
* handled by the application right after. */
|
|
gst_bin_add (GST_BIN_CAST (urisrc), urisrc->source);
|
|
|
|
/* notify of the new source used */
|
|
g_object_notify (G_OBJECT (urisrc), "source");
|
|
|
|
g_signal_emit (urisrc, gst_uri_source_bin_signals[SIGNAL_SOURCE_SETUP],
|
|
0, urisrc->source);
|
|
|
|
if (is_live_source (urisrc->source))
|
|
urisrc->is_stream = FALSE;
|
|
|
|
/* remove the old demuxer now, if any */
|
|
remove_demuxer (urisrc);
|
|
|
|
/* see if the source element emits raw audio/video all by itself,
|
|
* if so, we can create streams for the pads and be done with it.
|
|
* Also check that is has source pads, if not, we assume it will
|
|
* do everything itself. */
|
|
if (!analyse_source (urisrc, &is_raw, &have_out, &is_dynamic,
|
|
urisrc->need_queue && urisrc->use_buffering))
|
|
goto invalid_source;
|
|
|
|
if (!is_dynamic) {
|
|
if (is_raw) {
|
|
GST_DEBUG_OBJECT (urisrc, "Source provides all raw data");
|
|
/* source provides raw data, we added the pads and we can now signal a
|
|
* no_more pads because we are done. */
|
|
gst_element_no_more_pads (GST_ELEMENT_CAST (urisrc));
|
|
return TRUE;
|
|
} else if (!have_out) {
|
|
GST_DEBUG_OBJECT (urisrc, "Source has no output pads");
|
|
|
|
return TRUE;
|
|
}
|
|
} else {
|
|
GST_DEBUG_OBJECT (urisrc, "Source has dynamic output pads");
|
|
/* connect a handler for the new-pad signal */
|
|
urisrc->src_np_sig_id =
|
|
g_signal_connect (urisrc->source, "pad-added",
|
|
G_CALLBACK (source_new_pad), urisrc);
|
|
}
|
|
|
|
if (is_raw) {
|
|
GST_DEBUG_OBJECT (urisrc,
|
|
"Got raw srcpads on a dynamic source, using them as is.");
|
|
|
|
return TRUE;
|
|
} else if (urisrc->is_stream) {
|
|
GST_DEBUG_OBJECT (urisrc, "Setting up streaming");
|
|
/* do the stream things here */
|
|
if (!setup_typefind (urisrc, NULL))
|
|
goto streaming_failed;
|
|
} else {
|
|
GstIterator *pads_iter;
|
|
gboolean done = FALSE;
|
|
|
|
/* Expose all non-raw srcpads */
|
|
pads_iter = gst_element_iterate_src_pads (urisrc->source);
|
|
while (!done) {
|
|
GValue item = { 0, };
|
|
GstPad *pad;
|
|
|
|
switch (gst_iterator_next (pads_iter, &item)) {
|
|
case GST_ITERATOR_ERROR:
|
|
GST_WARNING_OBJECT (urisrc, "Error iterating pads on source element");
|
|
/* FALLTHROUGH */
|
|
case GST_ITERATOR_DONE:
|
|
done = TRUE;
|
|
break;
|
|
case GST_ITERATOR_RESYNC:
|
|
/* reset results and resync */
|
|
gst_iterator_resync (pads_iter);
|
|
break;
|
|
case GST_ITERATOR_OK:
|
|
pad = g_value_get_object (&item);
|
|
if (!setup_typefind (urisrc, pad)) {
|
|
gst_iterator_free (pads_iter);
|
|
goto streaming_failed;
|
|
}
|
|
g_value_reset (&item);
|
|
break;
|
|
}
|
|
}
|
|
gst_iterator_free (pads_iter);
|
|
}
|
|
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
no_source:
|
|
{
|
|
/* error message was already posted */
|
|
return FALSE;
|
|
}
|
|
invalid_source:
|
|
{
|
|
GST_ELEMENT_ERROR (urisrc, CORE, FAILED,
|
|
(_("Source element is invalid.")), (NULL));
|
|
return FALSE;
|
|
}
|
|
streaming_failed:
|
|
{
|
|
/* message was posted */
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static void
|
|
value_list_append_structure_list (GValue * list_val, GstStructure ** first,
|
|
GList * structure_list)
|
|
{
|
|
GList *l;
|
|
|
|
for (l = structure_list; l != NULL; l = l->next) {
|
|
GValue val = { 0, };
|
|
|
|
if (*first == NULL)
|
|
*first = gst_structure_copy ((GstStructure *) l->data);
|
|
|
|
g_value_init (&val, GST_TYPE_STRUCTURE);
|
|
g_value_take_boxed (&val, gst_structure_copy ((GstStructure *) l->data));
|
|
gst_value_list_append_value (list_val, &val);
|
|
g_value_unset (&val);
|
|
}
|
|
}
|
|
|
|
/* if it's a redirect message with multiple redirect locations we might
|
|
* want to pick a different 'best' location depending on the required
|
|
* bitrates and the connection speed */
|
|
static GstMessage *
|
|
handle_redirect_message (GstURISourceBin * urisrc, GstMessage * msg)
|
|
{
|
|
const GValue *locations_list, *location_val;
|
|
GstMessage *new_msg;
|
|
GstStructure *new_structure = NULL;
|
|
GList *l_good = NULL, *l_neutral = NULL, *l_bad = NULL;
|
|
GValue new_list = { 0, };
|
|
guint size, i;
|
|
const GstStructure *structure;
|
|
|
|
GST_DEBUG_OBJECT (urisrc, "redirect message: %" GST_PTR_FORMAT, msg);
|
|
GST_DEBUG_OBJECT (urisrc, "connection speed: %" G_GUINT64_FORMAT,
|
|
urisrc->connection_speed);
|
|
|
|
structure = gst_message_get_structure (msg);
|
|
if (urisrc->connection_speed == 0 || structure == NULL)
|
|
return msg;
|
|
|
|
locations_list = gst_structure_get_value (structure, "locations");
|
|
if (locations_list == NULL)
|
|
return msg;
|
|
|
|
size = gst_value_list_get_size (locations_list);
|
|
if (size < 2)
|
|
return msg;
|
|
|
|
/* maintain existing order as much as possible, just sort references
|
|
* with too high a bitrate to the end (the assumption being that if
|
|
* bitrates are given they are given for all interesting streams and
|
|
* that the you-need-at-least-version-xyz redirect has the same bitrate
|
|
* as the lowest referenced redirect alternative) */
|
|
for (i = 0; i < size; ++i) {
|
|
const GstStructure *s;
|
|
gint bitrate = 0;
|
|
|
|
location_val = gst_value_list_get_value (locations_list, i);
|
|
s = (const GstStructure *) g_value_get_boxed (location_val);
|
|
if (!gst_structure_get_int (s, "minimum-bitrate", &bitrate) || bitrate <= 0) {
|
|
GST_DEBUG_OBJECT (urisrc, "no bitrate: %" GST_PTR_FORMAT, s);
|
|
l_neutral = g_list_append (l_neutral, (gpointer) s);
|
|
} else if (bitrate > urisrc->connection_speed) {
|
|
GST_DEBUG_OBJECT (urisrc, "bitrate too high: %" GST_PTR_FORMAT, s);
|
|
l_bad = g_list_append (l_bad, (gpointer) s);
|
|
} else if (bitrate <= urisrc->connection_speed) {
|
|
GST_DEBUG_OBJECT (urisrc, "bitrate OK: %" GST_PTR_FORMAT, s);
|
|
l_good = g_list_append (l_good, (gpointer) s);
|
|
}
|
|
}
|
|
|
|
g_value_init (&new_list, GST_TYPE_LIST);
|
|
value_list_append_structure_list (&new_list, &new_structure, l_good);
|
|
value_list_append_structure_list (&new_list, &new_structure, l_neutral);
|
|
value_list_append_structure_list (&new_list, &new_structure, l_bad);
|
|
gst_structure_take_value (new_structure, "locations", &new_list);
|
|
|
|
g_list_free (l_good);
|
|
g_list_free (l_neutral);
|
|
g_list_free (l_bad);
|
|
|
|
new_msg = gst_message_new_element (msg->src, new_structure);
|
|
gst_message_unref (msg);
|
|
|
|
GST_DEBUG_OBJECT (urisrc, "new redirect message: %" GST_PTR_FORMAT, new_msg);
|
|
return new_msg;
|
|
}
|
|
|
|
static void
|
|
handle_buffering_message (GstURISourceBin * urisrc, GstMessage * msg)
|
|
{
|
|
gint perc, msg_perc;
|
|
gint smaller_perc = 100;
|
|
GstMessage *smaller = NULL;
|
|
GList *found = NULL;
|
|
GList *iter;
|
|
OutputSlotInfo *slot;
|
|
|
|
/* buffering messages must be aggregated as there might be multiple
|
|
* multiqueue in the pipeline and their independent buffering messages
|
|
* will confuse the application
|
|
*
|
|
* urisourcebin keeps a list of messages received from elements that are
|
|
* buffering.
|
|
* Rules are:
|
|
* 0) Ignore buffering from elements that are draining (is_eos == TRUE)
|
|
* 1) Always post the smaller buffering %
|
|
* 2) If an element posts a 100% buffering message, remove it from the list
|
|
* 3) When there are no more messages on the list, post 100% message
|
|
* 4) When an element posts a new buffering message, update the one
|
|
* on the list to this new value
|
|
*/
|
|
gst_message_parse_buffering (msg, &msg_perc);
|
|
GST_LOG_OBJECT (urisrc, "Got buffering msg from %" GST_PTR_FORMAT
|
|
" with %d%%", GST_MESSAGE_SRC (msg), msg_perc);
|
|
|
|
slot = g_object_get_data (G_OBJECT (GST_MESSAGE_SRC (msg)),
|
|
"urisourcebin.slotinfo");
|
|
|
|
BUFFERING_LOCK (urisrc);
|
|
if (slot && slot->is_eos) {
|
|
/* Ignore buffering messages from queues we marked as EOS,
|
|
* we already removed those from the list of buffering
|
|
* objects */
|
|
BUFFERING_UNLOCK (urisrc);
|
|
gst_message_replace (&msg, NULL);
|
|
return;
|
|
}
|
|
|
|
|
|
g_mutex_lock (&urisrc->buffering_post_lock);
|
|
|
|
/*
|
|
* Single loop for 2 things:
|
|
* 1) Look for a message with the same source
|
|
* 1.1) If the received message is 100%, remove it from the list
|
|
* 2) Find the minimum buffering from the list from elements that aren't EOS
|
|
*/
|
|
for (iter = urisrc->buffering_status; iter;) {
|
|
GstMessage *bufstats = iter->data;
|
|
gboolean is_eos = FALSE;
|
|
|
|
slot = g_object_get_data (G_OBJECT (GST_MESSAGE_SRC (bufstats)),
|
|
"urisourcebin.slotinfo");
|
|
if (slot)
|
|
is_eos = slot->is_eos;
|
|
|
|
if (GST_MESSAGE_SRC (bufstats) == GST_MESSAGE_SRC (msg)) {
|
|
found = iter;
|
|
if (msg_perc < 100) {
|
|
gst_message_unref (iter->data);
|
|
bufstats = iter->data = gst_message_ref (msg);
|
|
} else {
|
|
GList *current = iter;
|
|
|
|
/* remove the element here and avoid confusing the loop */
|
|
iter = g_list_next (iter);
|
|
|
|
gst_message_unref (current->data);
|
|
urisrc->buffering_status =
|
|
g_list_delete_link (urisrc->buffering_status, current);
|
|
|
|
continue;
|
|
}
|
|
}
|
|
|
|
/* only update minimum stat for non-EOS slots */
|
|
if (!is_eos) {
|
|
gst_message_parse_buffering (bufstats, &perc);
|
|
if (perc < smaller_perc) {
|
|
smaller_perc = perc;
|
|
smaller = bufstats;
|
|
}
|
|
} else {
|
|
GST_LOG_OBJECT (urisrc, "Ignoring buffering from EOS element");
|
|
}
|
|
iter = g_list_next (iter);
|
|
}
|
|
|
|
if (found == NULL && msg_perc < 100) {
|
|
if (msg_perc < smaller_perc) {
|
|
smaller_perc = msg_perc;
|
|
smaller = msg;
|
|
}
|
|
urisrc->buffering_status =
|
|
g_list_prepend (urisrc->buffering_status, gst_message_ref (msg));
|
|
}
|
|
|
|
if (smaller_perc == urisrc->last_buffering_pct) {
|
|
/* Don't repeat our last buffering status */
|
|
gst_message_replace (&msg, NULL);
|
|
} else {
|
|
urisrc->last_buffering_pct = smaller_perc;
|
|
|
|
/* now compute the buffering message that should be posted */
|
|
if (smaller_perc == 100) {
|
|
g_assert (urisrc->buffering_status == NULL);
|
|
/* we are posting the original received msg */
|
|
} else {
|
|
gst_message_replace (&msg, smaller);
|
|
}
|
|
}
|
|
BUFFERING_UNLOCK (urisrc);
|
|
|
|
if (msg) {
|
|
GST_LOG_OBJECT (urisrc, "Sending buffering msg from %" GST_PTR_FORMAT
|
|
" with %d%%", GST_MESSAGE_SRC (msg), smaller_perc);
|
|
GST_BIN_CLASS (parent_class)->handle_message (GST_BIN (urisrc), msg);
|
|
} else {
|
|
GST_LOG_OBJECT (urisrc, "Dropped buffering msg as a repeat of %d%%",
|
|
smaller_perc);
|
|
}
|
|
g_mutex_unlock (&urisrc->buffering_post_lock);
|
|
}
|
|
|
|
/* Remove any buffering message from the given source */
|
|
static void
|
|
remove_buffering_msgs (GstURISourceBin * urisrc, GstObject * src)
|
|
{
|
|
GList *iter;
|
|
gboolean removed = FALSE, post;
|
|
|
|
BUFFERING_LOCK (urisrc);
|
|
g_mutex_lock (&urisrc->buffering_post_lock);
|
|
|
|
GST_DEBUG_OBJECT (urisrc, "Removing %" GST_PTR_FORMAT
|
|
" buffering messages", src);
|
|
|
|
for (iter = urisrc->buffering_status; iter;) {
|
|
GstMessage *bufstats = iter->data;
|
|
if (GST_MESSAGE_SRC (bufstats) == src) {
|
|
gst_message_unref (bufstats);
|
|
urisrc->buffering_status =
|
|
g_list_delete_link (urisrc->buffering_status, iter);
|
|
removed = TRUE;
|
|
break;
|
|
}
|
|
iter = g_list_next (iter);
|
|
}
|
|
|
|
post = (removed && urisrc->buffering_status == NULL);
|
|
BUFFERING_UNLOCK (urisrc);
|
|
|
|
if (post) {
|
|
GST_DEBUG_OBJECT (urisrc, "Last buffering element done - posting 100%%");
|
|
|
|
/* removed the last buffering element, post 100% */
|
|
gst_element_post_message (GST_ELEMENT_CAST (urisrc),
|
|
gst_message_new_buffering (GST_OBJECT_CAST (urisrc), 100));
|
|
}
|
|
|
|
g_mutex_unlock (&urisrc->buffering_post_lock);
|
|
}
|
|
|
|
static void
|
|
handle_message (GstBin * bin, GstMessage * msg)
|
|
{
|
|
GstURISourceBin *urisrc = GST_URI_SOURCE_BIN (bin);
|
|
|
|
switch (GST_MESSAGE_TYPE (msg)) {
|
|
case GST_MESSAGE_ELEMENT:{
|
|
if (gst_message_has_name (msg, "redirect")) {
|
|
/* sort redirect messages based on the connection speed. This simplifies
|
|
* the user of this element as it can in most cases just pick the first item
|
|
* of the sorted list as a good redirection candidate. It can of course
|
|
* choose something else from the list if it has a better way. */
|
|
msg = handle_redirect_message (urisrc, msg);
|
|
}
|
|
break;
|
|
}
|
|
case GST_MESSAGE_BUFFERING:
|
|
handle_buffering_message (urisrc, msg);
|
|
msg = NULL;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (msg)
|
|
GST_BIN_CLASS (parent_class)->handle_message (bin, msg);
|
|
}
|
|
|
|
/* generic struct passed to all query fold methods
|
|
* FIXME, move to core.
|
|
*/
|
|
typedef struct
|
|
{
|
|
GstQuery *query;
|
|
gint64 min;
|
|
gint64 max;
|
|
gboolean seekable;
|
|
gboolean live;
|
|
} QueryFold;
|
|
|
|
typedef void (*QueryInitFunction) (GstURISourceBin * urisrc, QueryFold * fold);
|
|
typedef void (*QueryDoneFunction) (GstURISourceBin * urisrc, QueryFold * fold);
|
|
|
|
/* for duration/position we collect all durations/positions and take
|
|
* the MAX of all valid results */
|
|
static void
|
|
uri_source_query_init (GstURISourceBin * urisrc, QueryFold * fold)
|
|
{
|
|
fold->min = 0;
|
|
fold->max = -1;
|
|
fold->seekable = TRUE;
|
|
fold->live = 0;
|
|
}
|
|
|
|
static gboolean
|
|
uri_source_query_duration_fold (const GValue * item, GValue * ret,
|
|
QueryFold * fold)
|
|
{
|
|
GstPad *pad = g_value_get_object (item);
|
|
|
|
if (gst_pad_query (pad, fold->query)) {
|
|
gint64 duration;
|
|
|
|
g_value_set_boolean (ret, TRUE);
|
|
|
|
gst_query_parse_duration (fold->query, NULL, &duration);
|
|
|
|
GST_DEBUG_OBJECT (item, "got duration %" G_GINT64_FORMAT, duration);
|
|
|
|
if (duration > fold->max)
|
|
fold->max = duration;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
uri_source_query_duration_done (GstURISourceBin * urisrc, QueryFold * fold)
|
|
{
|
|
GstFormat format;
|
|
|
|
gst_query_parse_duration (fold->query, &format, NULL);
|
|
/* store max in query result */
|
|
gst_query_set_duration (fold->query, format, fold->max);
|
|
|
|
GST_DEBUG ("max duration %" G_GINT64_FORMAT, fold->max);
|
|
}
|
|
|
|
static gboolean
|
|
uri_source_query_position_fold (const GValue * item, GValue * ret,
|
|
QueryFold * fold)
|
|
{
|
|
GstPad *pad = g_value_get_object (item);
|
|
|
|
if (gst_pad_query (pad, fold->query)) {
|
|
gint64 position;
|
|
|
|
g_value_set_boolean (ret, TRUE);
|
|
|
|
gst_query_parse_position (fold->query, NULL, &position);
|
|
|
|
GST_DEBUG_OBJECT (item, "got position %" G_GINT64_FORMAT, position);
|
|
|
|
if (position > fold->max)
|
|
fold->max = position;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
uri_source_query_position_done (GstURISourceBin * urisrc, QueryFold * fold)
|
|
{
|
|
GstFormat format;
|
|
|
|
gst_query_parse_position (fold->query, &format, NULL);
|
|
/* store max in query result */
|
|
gst_query_set_position (fold->query, format, fold->max);
|
|
|
|
GST_DEBUG_OBJECT (urisrc, "max position %" G_GINT64_FORMAT, fold->max);
|
|
}
|
|
|
|
static gboolean
|
|
uri_source_query_latency_fold (const GValue * item, GValue * ret,
|
|
QueryFold * fold)
|
|
{
|
|
GstPad *pad = g_value_get_object (item);
|
|
|
|
if (gst_pad_query (pad, fold->query)) {
|
|
GstClockTime min, max;
|
|
gboolean live;
|
|
|
|
gst_query_parse_latency (fold->query, &live, &min, &max);
|
|
|
|
GST_DEBUG_OBJECT (pad,
|
|
"got latency min %" GST_TIME_FORMAT ", max %" GST_TIME_FORMAT
|
|
", live %d", GST_TIME_ARGS (min), GST_TIME_ARGS (max), live);
|
|
|
|
if (live) {
|
|
/* for the combined latency we collect the MAX of all min latencies and
|
|
* the MIN of all max latencies */
|
|
if (min > fold->min)
|
|
fold->min = min;
|
|
if (fold->max == -1)
|
|
fold->max = max;
|
|
else if (max < fold->max)
|
|
fold->max = max;
|
|
|
|
fold->live = TRUE;
|
|
}
|
|
} else {
|
|
GST_LOG_OBJECT (pad, "latency query failed");
|
|
g_value_set_boolean (ret, FALSE);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
uri_source_query_latency_done (GstURISourceBin * urisrc, QueryFold * fold)
|
|
{
|
|
/* store max in query result */
|
|
gst_query_set_latency (fold->query, fold->live, fold->min, fold->max);
|
|
|
|
GST_DEBUG_OBJECT (urisrc,
|
|
"latency min %" GST_TIME_FORMAT ", max %" GST_TIME_FORMAT
|
|
", live %d", GST_TIME_ARGS (fold->min), GST_TIME_ARGS (fold->max),
|
|
fold->live);
|
|
}
|
|
|
|
/* we are seekable if all srcpads are seekable */
|
|
static gboolean
|
|
uri_source_query_seeking_fold (const GValue * item, GValue * ret,
|
|
QueryFold * fold)
|
|
{
|
|
GstPad *pad = g_value_get_object (item);
|
|
|
|
if (gst_pad_query (pad, fold->query)) {
|
|
gboolean seekable;
|
|
|
|
g_value_set_boolean (ret, TRUE);
|
|
gst_query_parse_seeking (fold->query, NULL, &seekable, NULL, NULL);
|
|
|
|
GST_DEBUG_OBJECT (item, "got seekable %d", seekable);
|
|
|
|
if (fold->seekable)
|
|
fold->seekable = seekable;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
uri_source_query_seeking_done (GstURISourceBin * urisrc, QueryFold * fold)
|
|
{
|
|
GstFormat format;
|
|
|
|
gst_query_parse_seeking (fold->query, &format, NULL, NULL, NULL);
|
|
gst_query_set_seeking (fold->query, format, fold->seekable, 0, -1);
|
|
|
|
GST_DEBUG_OBJECT (urisrc, "seekable %d", fold->seekable);
|
|
}
|
|
|
|
/* generic fold, return first valid result */
|
|
static gboolean
|
|
uri_source_query_generic_fold (const GValue * item, GValue * ret,
|
|
QueryFold * fold)
|
|
{
|
|
GstPad *pad = g_value_get_object (item);
|
|
gboolean res;
|
|
|
|
if ((res = gst_pad_query (pad, fold->query))) {
|
|
g_value_set_boolean (ret, TRUE);
|
|
GST_DEBUG_OBJECT (item, "answered query %p", fold->query);
|
|
}
|
|
|
|
/* and stop as soon as we have a valid result */
|
|
return !res;
|
|
}
|
|
|
|
/* we're a bin, the default query handler iterates sink elements, which we don't
|
|
* have normally. We should just query all source pads.
|
|
*/
|
|
static gboolean
|
|
gst_uri_source_bin_query (GstElement * element, GstQuery * query)
|
|
{
|
|
GstURISourceBin *urisrc;
|
|
gboolean res = FALSE;
|
|
GstIterator *iter;
|
|
GstIteratorFoldFunction fold_func;
|
|
QueryInitFunction fold_init = NULL;
|
|
QueryDoneFunction fold_done = NULL;
|
|
QueryFold fold_data;
|
|
GValue ret = { 0 };
|
|
gboolean default_ret = FALSE;
|
|
|
|
urisrc = GST_URI_SOURCE_BIN (element);
|
|
|
|
switch (GST_QUERY_TYPE (query)) {
|
|
case GST_QUERY_DURATION:
|
|
/* iterate and collect durations */
|
|
fold_func = (GstIteratorFoldFunction) uri_source_query_duration_fold;
|
|
fold_init = uri_source_query_init;
|
|
fold_done = uri_source_query_duration_done;
|
|
break;
|
|
case GST_QUERY_POSITION:
|
|
/* iterate and collect durations */
|
|
fold_func = (GstIteratorFoldFunction) uri_source_query_position_fold;
|
|
fold_init = uri_source_query_init;
|
|
fold_done = uri_source_query_position_done;
|
|
break;
|
|
case GST_QUERY_LATENCY:
|
|
/* iterate and collect durations */
|
|
fold_func = (GstIteratorFoldFunction) uri_source_query_latency_fold;
|
|
fold_init = uri_source_query_init;
|
|
fold_done = uri_source_query_latency_done;
|
|
default_ret = TRUE;
|
|
break;
|
|
case GST_QUERY_SEEKING:
|
|
/* iterate and collect durations */
|
|
fold_func = (GstIteratorFoldFunction) uri_source_query_seeking_fold;
|
|
fold_init = uri_source_query_init;
|
|
fold_done = uri_source_query_seeking_done;
|
|
break;
|
|
default:
|
|
fold_func = (GstIteratorFoldFunction) uri_source_query_generic_fold;
|
|
break;
|
|
}
|
|
|
|
fold_data.query = query;
|
|
|
|
g_value_init (&ret, G_TYPE_BOOLEAN);
|
|
g_value_set_boolean (&ret, default_ret);
|
|
|
|
iter = gst_element_iterate_src_pads (element);
|
|
GST_DEBUG_OBJECT (element, "Sending query %p (type %d) to src pads",
|
|
query, GST_QUERY_TYPE (query));
|
|
|
|
if (fold_init)
|
|
fold_init (urisrc, &fold_data);
|
|
|
|
while (TRUE) {
|
|
GstIteratorResult ires;
|
|
|
|
ires = gst_iterator_fold (iter, fold_func, &ret, &fold_data);
|
|
|
|
switch (ires) {
|
|
case GST_ITERATOR_RESYNC:
|
|
gst_iterator_resync (iter);
|
|
if (fold_init)
|
|
fold_init (urisrc, &fold_data);
|
|
g_value_set_boolean (&ret, default_ret);
|
|
break;
|
|
case GST_ITERATOR_OK:
|
|
case GST_ITERATOR_DONE:
|
|
res = g_value_get_boolean (&ret);
|
|
if (fold_done != NULL && res)
|
|
fold_done (urisrc, &fold_data);
|
|
goto done;
|
|
default:
|
|
res = FALSE;
|
|
goto done;
|
|
}
|
|
}
|
|
done:
|
|
gst_iterator_free (iter);
|
|
|
|
return res;
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_uri_source_bin_change_state (GstElement * element,
|
|
GstStateChange transition)
|
|
{
|
|
GstStateChangeReturn ret;
|
|
GstURISourceBin *urisrc = GST_URI_SOURCE_BIN (element);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
GST_DEBUG ("ready to paused");
|
|
if (!setup_source (urisrc))
|
|
goto source_failed;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
if (ret == GST_STATE_CHANGE_FAILURE)
|
|
goto setup_failed;
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
GST_DEBUG ("paused to ready");
|
|
remove_demuxer (urisrc);
|
|
remove_source (urisrc);
|
|
g_list_free_full (urisrc->buffering_status,
|
|
(GDestroyNotify) gst_message_unref);
|
|
urisrc->buffering_status = NULL;
|
|
urisrc->last_buffering_pct = -1;
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_NULL:
|
|
GST_DEBUG ("ready to null");
|
|
remove_demuxer (urisrc);
|
|
remove_source (urisrc);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return ret;
|
|
|
|
/* ERRORS */
|
|
source_failed:
|
|
{
|
|
return GST_STATE_CHANGE_FAILURE;
|
|
}
|
|
setup_failed:
|
|
{
|
|
/* clean up leftover groups */
|
|
return GST_STATE_CHANGE_FAILURE;
|
|
}
|
|
}
|