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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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videomixer2: Add videomixer2 element
This is based on collectpads2 and is synchronizing all streams based on the running time. New features compared to old videomixer: * Synchronizing frames on the running time * Improved and simplified negotiation * Full QoS support * Variable framerate support Fixes bug #626048, #624905.
This commit is contained in:
Sebastian Dröge
parent
6940559c46
commit
bcfd60a8d2
6 changed files with 4362 additions and 5 deletions
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@ -3,14 +3,27 @@ plugin_LTLIBRARIES = libgstvideomixer.la
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ORC_SOURCE=blendorc
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include $(top_srcdir)/common/orc.mak
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libgstvideomixer_la_SOURCES = videomixer.c blend.c
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libgstvideomixer_la_SOURCES = \
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videomixer.c \
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blend.c \
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videomixer2.c \
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gstcollectpads2.c
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nodist_libgstvideomixer_la_SOURCES = $(ORC_NODIST_SOURCES)
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libgstvideomixer_la_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) \
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$(GST_BASE_CFLAGS) $(GST_CONTROLLER_CFLAGS) $(GST_CFLAGS) $(ORC_CFLAGS)
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libgstvideomixer_la_LIBADD = $(GST_PLUGINS_BASE_LIBS) -lgstvideo-@GST_MAJORMINOR@ \
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$(GST_BASE_CFLAGS) $(GST_CONTROLLER_CFLAGS) $(GST_CFLAGS) $(ORC_CFLAGS) \
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-DGstCollectPads2=GstVideoMixer2Pads \
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-DGstCollectPads2Class=GstVideoMixer2PadsClass
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libgstvideomixer_la_LIBADD = $(GST_PLUGINS_BASE_LIBS) \
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-lgstvideo-@GST_MAJORMINOR@ \
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$(GST_BASE_LIBS) $(GST_CONTROLLER_LIBS) $(GST_LIBS) $(ORC_LIBS)
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libgstvideomixer_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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libgstvideomixer_la_LIBTOOLFLAGS = --tag=disable-static
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# headers we need but don't want installed
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noinst_HEADERS = videomixer.h videomixerpad.h blend.h
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noinst_HEADERS = \
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videomixer.h \
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videomixerpad.h \
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blend.h \
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videomixer2.h \
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gstcollectpads2.h
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1935
gst/videomixer/gstcollectpads2.c
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1935
gst/videomixer/gstcollectpads2.c
Normal file
File diff suppressed because it is too large
Load diff
336
gst/videomixer/gstcollectpads2.h
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336
gst/videomixer/gstcollectpads2.h
Normal file
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@ -0,0 +1,336 @@
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/* GStreamer
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* Copyright (C) 2005 Wim Taymans <wim@fluendo.com>
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* Copyright (C) 2008 Mark Nauwelaerts <mnauw@users.sourceforge.net>
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*
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* gstcollectpads2.h:
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_COLLECT_PADS2_H__
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#define __GST_COLLECT_PADS2_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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#define GST_TYPE_COLLECT_PADS2 (gst_collect_pads2_get_type())
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#define GST_COLLECT_PADS2(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_COLLECT_PADS2,GstCollectPads2))
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#define GST_COLLECT_PADS2_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_COLLECT_PADS2,GstCollectPads2Class))
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#define GST_COLLECT_PADS2_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_COLLECT_PADS2,GstCollectPads2Class))
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#define GST_IS_COLLECT_PADS2(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_COLLECT_PADS2))
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#define GST_IS_COLLECT_PADS2_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_COLLECT_PADS2))
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typedef struct _GstCollectData2 GstCollectData2;
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typedef struct _GstCollectPads2 GstCollectPads2;
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typedef struct _GstCollectPads2Class GstCollectPads2Class;
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/**
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* GstCollectData2DestroyNotify:
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* @data: the #GstCollectData2 that will be freed
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*
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* A function that will be called when the #GstCollectData2 will be freed.
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* It is passed the pointer to the structure and should free any custom
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* memory and resources allocated for it.
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*
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* Since: 0.10.12
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*/
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typedef void (*GstCollectData2DestroyNotify) (GstCollectData2 *data);
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/**
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* GstCollectPads2StateFlags:
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* @GST_COLLECT_PADS2_STATE_EOS: Set if collectdata's pad is EOS.
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* @GST_COLLECT_PADS2_STATE_FLUSHING: Set if collectdata's pad is flushing.
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* @GST_COLLECT_PADS2_STATE_NEW_SEGMENT: Set if collectdata's pad received a
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* new_segment event.
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* @GST_COLLECT_PADS2_STATE_WAITING: Set if collectdata's pad must be waited
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* for when collecting.
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* @GST_COLLECT_PADS2_STATE_LOCKED: Set collectdata's pad WAITING state must
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* not be changed.
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* #GstCollectPads2StateFlags indicate private state of a collectdata('s pad).
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*/
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typedef enum {
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GST_COLLECT_PADS2_STATE_EOS = 1 << 0,
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GST_COLLECT_PADS2_STATE_FLUSHING = 1 << 1,
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GST_COLLECT_PADS2_STATE_NEW_SEGMENT = 1 << 2,
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GST_COLLECT_PADS2_STATE_WAITING = 1 << 3,
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GST_COLLECT_PADS2_STATE_LOCKED = 1 << 4
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} GstCollectPads2StateFlags;
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/**
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* GST_COLLECT_PADS2_STATE:
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* @data: a #GstCollectData2.
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*
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* A flags word containing #GstCollectPads2StateFlags flags set
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* on this collected pad.
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*/
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#define GST_COLLECT_PADS2_STATE(data) (((GstCollectData2 *) data)->state)
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/**
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* GST_COLLECT_PADS2_STATE_IS_SET:
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* @data: a #GstCollectData2.
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* @flag: the #GstCollectPads2StateFlags to check.
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*
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* Gives the status of a specific flag on a collected pad.
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*/
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#define GST_COLLECT_PADS2_STATE_IS_SET(data,flag) !!(GST_COLLECT_PADS2_STATE (data) & flag)
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/**
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* GST_COLLECT_PADS2_STATE_SET:
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* @data: a #GstCollectData2.
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* @flag: the #GstCollectPads2StateFlags to set.
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*
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* Sets a state flag on a collected pad.
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*/
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#define GST_COLLECT_PADS2_STATE_SET(data,flag) (GST_COLLECT_PADS2_STATE (data) |= flag)
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/**
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* GST_COLLECT_PADS2_STATE_UNSET:
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* @data: a #GstCollectData2.
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* @flag: the #GstCollectPads2StateFlags to clear.
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*
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* Clears a state flag on a collected pad.
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*/
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#define GST_COLLECT_PADS2_STATE_UNSET(data,flag) (GST_COLLECT_PADS2_STATE (data) &= ~(flag))
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#define GST_COLLECT_PADS2_FLOW_DROP GST_FLOW_CUSTOM_SUCCESS
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/**
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* GstCollectData2:
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* @collect: owner #GstCollectPads2
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* @pad: #GstPad managed by this data
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* @buffer: currently queued buffer.
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* @pos: position in the buffer
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* @segment: last segment received.
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*
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* Structure used by the collect_pads2.
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*/
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struct _GstCollectData2
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{
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/* with STREAM_LOCK of @collect */
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GstCollectPads2 *collect;
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GstPad *pad;
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GstBuffer *buffer;
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guint pos;
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GstSegment segment;
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/*< private >*/
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/* state: bitfield for easier extension;
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* eos, flushing, new_segment, waiting */
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guint state;
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/* refcounting for struct, and destroy callback */
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GstCollectData2DestroyNotify destroy_notify;
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gint refcount;
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gpointer _gst_reserved[GST_PADDING];
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};
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/**
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* GstCollectPads2Function:
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* @pads: the #GstCollectPads2 that trigered the callback
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* @user_data: user data passed to gst_collect_pads2_set_function()
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*
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* A function that will be called when all pads have received data.
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*
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* Returns: #GST_FLOW_OK for success
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*/
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typedef GstFlowReturn (*GstCollectPads2Function) (GstCollectPads2 *pads, gpointer user_data);
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/**
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* GstCollectPads2BufferFunction:
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* @pads: the #GstCollectPads2 that trigered the callback
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* @data: the #GstCollectData2 of pad that has received the buffer
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* @buffer: the #GstBuffer
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* @user_data: user data passed to gst_collect_pads2_set_buffer_function()
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*
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* A function that will be called when a (considered oldest) buffer can be muxed.
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* If all pads have reached EOS, this function is called with NULL @buffer
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* and NULL @data.
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*
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* Returns: #GST_FLOW_OK for success
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*/
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typedef GstFlowReturn (*GstCollectPads2BufferFunction) (GstCollectPads2 *pads, GstCollectData2 *data,
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GstBuffer *buffer, gpointer user_data);
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/**
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* GstCollectPads2CompareFunction:
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* @pads: the #GstCollectPads that is comparing the timestamps
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* @data1: the first #GstCollectData2
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* @timestamp1: the first timestamp
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* @data2: the second #GstCollectData2
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* @timestamp2: the second timestamp
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* @user_data: user data passed to gst_collect_pads2_set_compare_function()
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*
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* A function for comparing two timestamps of buffers or newsegments collected on one pad.
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*
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* Returns: Integer less than zero when first timestamp is deemed older than the second one.
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* Zero if the timestamps are deemed equally old.
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* Integer greate than zero when second timestamp is deemed older than the first one.
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*/
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typedef gint (*GstCollectPads2CompareFunction) (GstCollectPads2 *pads,
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GstCollectData2 * data1, GstClockTime timestamp1,
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GstCollectData2 * data2, GstClockTime timestamp2,
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gpointer user_data);
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/**
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* GstCollectPads2EventFunction:
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* @pads: the #GstCollectPads2 that trigered the callback
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* @pad: the #GstPad that received an event
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* @event: the #GstEvent received
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* @user_data: user data passed to gst_collect_pads2_set_event_function()
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*
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* A function that will be called after collectpads has processed the event.
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*
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* Returns: %TRUE if the pad could handle the event
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*/
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typedef gboolean (*GstCollectPads2EventFunction) (GstCollectPads2 *pads, GstCollectData2 * pad,
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GstEvent * event, gpointer user_data);
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/**
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* GST_COLLECT_PADS2_GET_STREAM_LOCK:
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* @pads: a #GstCollectPads2
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*
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* Get the stream lock of @pads. The stream lock is used to coordinate and
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* serialize execution among the various streams being collected, and in
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* protecting the resources used to accomplish this.
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*/
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#define GST_COLLECT_PADS2_GET_STREAM_LOCK(pads) (&((GstCollectPads2 *)pads)->stream_lock)
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/**
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* GST_COLLECT_PADS2_STREAM_LOCK:
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* @pads: a #GstCollectPads2
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*
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* Lock the stream lock of @pads.
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*/
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#define GST_COLLECT_PADS2_STREAM_LOCK(pads) (g_static_rec_mutex_lock(GST_COLLECT_PADS2_GET_STREAM_LOCK (pads)))
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/**
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* GST_COLLECT_PADS2_STREAM_UNLOCK:
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* @pads: a #GstCollectPads2
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*
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* Unlock the stream lock of @pads.
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*/
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#define GST_COLLECT_PADS2_STREAM_UNLOCK(pads) (g_static_rec_mutex_unlock(GST_COLLECT_PADS2_GET_STREAM_LOCK (pads)))
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/**
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* GstCollectPads2:
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* @data: #GList of #GstCollectData2 managed by this #GstCollectPads2.
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*
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* Collectpads object.
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*/
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struct _GstCollectPads2 {
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GstObject object;
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/*< public >*/ /* with LOCK and/or STREAM_LOCK */
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GSList *data; /* list of CollectData items */
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/*< private >*/
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GStaticRecMutex stream_lock; /* used to serialize collection among several streams */
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/* with LOCK and/or STREAM_LOCK*/
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gboolean started;
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/* with STREAM_LOCK */
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guint32 cookie; /* @data list cookie */
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guint numpads; /* number of pads in @data */
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guint queuedpads; /* number of pads with a buffer */
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guint eospads; /* number of pads that are EOS */
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GstClockTime earliest_time; /* Current earliest time */
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GstCollectData2 *earliest_data; /* Pad data for current earliest time */
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/* with LOCK */
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GSList *pad_list; /* updated pad list */
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guint32 pad_cookie; /* updated cookie */
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GstCollectPads2Function func; /* function and user_data for callback */
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gpointer user_data;
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GstCollectPads2BufferFunction prepare_buffer_func; /* function and user_data for prepare buffer callback */
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gpointer prepare_buffer_user_data;
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GstCollectPads2BufferFunction buffer_func; /* function and user_data for buffer callback */
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gpointer buffer_user_data;
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GstCollectPads2CompareFunction compare_func;
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gpointer compare_user_data;
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GstCollectPads2EventFunction event_func; /* function and data for event callback */
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gpointer event_user_data;
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/* no other lock needed */
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GMutex *evt_lock; /* these make up sort of poor man's event signaling */
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GCond *evt_cond;
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guint32 evt_cookie;
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gpointer _gst_reserved[GST_PADDING + 0];
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};
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struct _GstCollectPads2Class {
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GstObjectClass parent_class;
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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GType gst_collect_pads2_get_type(void);
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/* creating the object */
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GstCollectPads2* gst_collect_pads2_new (void);
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/* set the callbacks */
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void gst_collect_pads2_set_function (GstCollectPads2 *pads, GstCollectPads2Function func,
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gpointer user_data);
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void gst_collect_pads2_set_prepare_buffer_function (GstCollectPads2 *pads,
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GstCollectPads2BufferFunction func, gpointer user_data);
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void gst_collect_pads2_set_buffer_function (GstCollectPads2 *pads,
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GstCollectPads2BufferFunction func, gpointer user_data);
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void gst_collect_pads2_set_event_function (GstCollectPads2 *pads,
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GstCollectPads2EventFunction func, gpointer user_data);
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void gst_collect_pads2_set_compare_function (GstCollectPads2 *pads,
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GstCollectPads2CompareFunction func, gpointer user_data);
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/* pad management */
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GstCollectData2* gst_collect_pads2_add_pad (GstCollectPads2 *pads, GstPad *pad, guint size);
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GstCollectData2* gst_collect_pads2_add_pad_full (GstCollectPads2 *pads, GstPad *pad, guint size, GstCollectData2DestroyNotify destroy_notify,
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gboolean lock);
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gboolean gst_collect_pads2_remove_pad (GstCollectPads2 *pads, GstPad *pad);
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gboolean gst_collect_pads2_is_active (GstCollectPads2 *pads, GstPad *pad);
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void gst_mux_pads_set_locked (GstCollectPads2 *pads, GstCollectData2 *data,
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gboolean locked);
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/* start/stop collection */
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GstFlowReturn gst_collect_pads2_collect (GstCollectPads2 *pads);
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GstFlowReturn gst_collect_pads2_collect_range (GstCollectPads2 *pads, guint64 offset, guint length);
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void gst_collect_pads2_start (GstCollectPads2 *pads);
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void gst_collect_pads2_stop (GstCollectPads2 *pads);
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void gst_collect_pads2_set_flushing (GstCollectPads2 *pads, gboolean flushing);
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/* get collected buffers */
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GstBuffer* gst_collect_pads2_peek (GstCollectPads2 *pads, GstCollectData2 *data);
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GstBuffer* gst_collect_pads2_pop (GstCollectPads2 *pads, GstCollectData2 *data);
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/* get collected bytes */
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guint gst_collect_pads2_available (GstCollectPads2 *pads);
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guint gst_collect_pads2_read (GstCollectPads2 *pads, GstCollectData2 *data,
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guint8 **bytes, guint size);
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guint gst_collect_pads2_flush (GstCollectPads2 *pads, GstCollectData2 *data,
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guint size);
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GstBuffer* gst_collect_pads2_read_buffer (GstCollectPads2 * pads, GstCollectData2 * data,
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guint size);
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GstBuffer* gst_collect_pads2_take_buffer (GstCollectPads2 * pads, GstCollectData2 * data,
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guint size);
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/* setting and unsetting waiting mode */
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void gst_collect_pads2_set_waiting (GstCollectPads2 *pads, GstCollectData2 *data,
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gboolean waiting);
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G_END_DECLS
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#endif /* __GST_COLLECT_PADS22_H__ */
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@ -85,6 +85,7 @@
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#endif
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#include "videomixer.h"
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#include "videomixer2.h"
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GST_DEBUG_CATEGORY_STATIC (gst_videomixer_debug);
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#define GST_CAT_DEFAULT gst_videomixer_debug
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@ -1855,7 +1856,7 @@ plugin_init (GstPlugin * plugin)
|
|||
gst_video_mixer_init_blend ();
|
||||
|
||||
return gst_element_register (plugin, "videomixer", GST_RANK_PRIMARY,
|
||||
GST_TYPE_VIDEO_MIXER);
|
||||
GST_TYPE_VIDEO_MIXER) && gst_videomixer2_register (plugin);
|
||||
}
|
||||
|
||||
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
||||
|
|
|
|||
1951
gst/videomixer/videomixer2.c
Normal file
1951
gst/videomixer/videomixer2.c
Normal file
File diff suppressed because it is too large
Load diff
121
gst/videomixer/videomixer2.h
Normal file
121
gst/videomixer/videomixer2.h
Normal file
|
|
@ -0,0 +1,121 @@
|
|||
/* Generic video mixer plugin
|
||||
* Copyright (C) 2008 Wim Taymans <wim@fluendo.com>
|
||||
* Copyright (C) 2010 Sebastian Dröge <sebastian.droege@collabora.co.uk>
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Library General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Library General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Library General Public
|
||||
* License along with this library; if not, write to the
|
||||
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
* Boston, MA 02111-1307, USA.
|
||||
*/
|
||||
|
||||
#ifndef __GST_VIDEO_MIXER2_H__
|
||||
#define __GST_VIDEO_MIXER2_H__
|
||||
|
||||
#include <gst/gst.h>
|
||||
#include <gst/video/video.h>
|
||||
|
||||
#include "blend.h"
|
||||
#include "gstcollectpads2.h"
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define GST_TYPE_VIDEO_MIXER2 (gst_videomixer2_get_type())
|
||||
#define GST_VIDEO_MIXER2(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_MIXER2, GstVideoMixer2))
|
||||
#define GST_VIDEO_MIXER2_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEO_MIXER2, GstVideoMixer2Class))
|
||||
#define GST_IS_VIDEO_MIXER2(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_MIXER2))
|
||||
#define GST_IS_VIDEO_MIXER2_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_MIXER2))
|
||||
|
||||
typedef struct _GstVideoMixer2 GstVideoMixer2;
|
||||
typedef struct _GstVideoMixer2Class GstVideoMixer2Class;
|
||||
|
||||
/**
|
||||
* GstVideoMixer2Background:
|
||||
* @VIDEO_MIXER2_BACKGROUND_CHECKER: checker pattern background
|
||||
* @VIDEO_MIXER2_BACKGROUND_BLACK: solid color black background
|
||||
* @VIDEO_MIXER2_BACKGROUND_WHITE: solid color white background
|
||||
*
|
||||
* The different backgrounds videomixer can blend over.
|
||||
*/
|
||||
typedef enum
|
||||
{
|
||||
VIDEO_MIXER2_BACKGROUND_CHECKER,
|
||||
VIDEO_MIXER2_BACKGROUND_BLACK,
|
||||
VIDEO_MIXER2_BACKGROUND_WHITE
|
||||
}
|
||||
GstVideoMixer2Background;
|
||||
|
||||
/**
|
||||
* GstVideoMixer2:
|
||||
*
|
||||
* The opaque #GstVideoMixer2 structure.
|
||||
*/
|
||||
struct _GstVideoMixer2
|
||||
{
|
||||
GstElement element;
|
||||
|
||||
/* pad */
|
||||
GstPad *srcpad;
|
||||
|
||||
/* Lock to prevent the state to change while blending */
|
||||
GMutex *lock;
|
||||
/* Sink pads using Collect Pads 2*/
|
||||
GstCollectPads2 *collect;
|
||||
|
||||
/* sinkpads, a GSList of GstVideoMixer2Pads */
|
||||
GSList *sinkpads;
|
||||
gint numpads;
|
||||
/* Next available sinkpad index */
|
||||
gint next_sinkpad;
|
||||
|
||||
/* Output caps */
|
||||
GstVideoFormat format;
|
||||
gint width, height;
|
||||
gint fps_n;
|
||||
gint fps_d;
|
||||
gint par_n;
|
||||
gint par_d;
|
||||
|
||||
gboolean newseg_pending;
|
||||
gboolean flush_stop_pending;
|
||||
|
||||
GstVideoMixer2Background background;
|
||||
|
||||
/* Current downstream segment */
|
||||
GstSegment segment;
|
||||
GstClockTime ts_offset;
|
||||
guint64 nframes;
|
||||
|
||||
/* QoS stuff */
|
||||
gdouble proportion;
|
||||
GstClockTime earliest_time;
|
||||
guint64 qos_processed, qos_dropped;
|
||||
|
||||
BlendFunction blend;
|
||||
FillCheckerFunction fill_checker;
|
||||
FillColorFunction fill_color;
|
||||
};
|
||||
|
||||
struct _GstVideoMixer2Class
|
||||
{
|
||||
GstElementClass parent_class;
|
||||
};
|
||||
|
||||
GType gst_videomixer2_get_type (void);
|
||||
gboolean gst_videomixer2_register (GstPlugin * plugin);
|
||||
|
||||
G_END_DECLS
|
||||
#endif /* __GST_VIDEO_MIXER2_H__ */
|
||||
Loading…
Reference in a new issue