+++ /dev/null
-/* GStreamer
- * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
- *
- * 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.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <gstvideodrop.h>
-#include <gst/video/video.h>
-
-/* GstVideodrop signals and args */
-enum
-{
- /* FILL ME */
- LAST_SIGNAL
-};
-
-enum
-{
- ARG_0,
- ARG_SPEED
- /* FILL ME */
-};
-
-static GstStaticPadTemplate gst_videodrop_src_template =
-GST_STATIC_PAD_TEMPLATE ("src",
- GST_PAD_SRC,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{ YUY2, I420, YV12, YUYV, UYVY }")
- )
- );
-
-static GstStaticPadTemplate gst_videodrop_sink_template =
-GST_STATIC_PAD_TEMPLATE ("sink",
- GST_PAD_SINK,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{ YUY2, I420, YV12, YUYV, UYVY }")
- )
- );
-
-static void gst_videodrop_base_init (gpointer g_class);
-static void gst_videodrop_class_init (GstVideodropClass * klass);
-static void gst_videodrop_init (GstVideodrop * videodrop);
-static void gst_videodrop_chain (GstPad * pad, GstData * _data);
-
-static void gst_videodrop_set_property (GObject * object,
- guint prop_id, const GValue * value, GParamSpec * pspec);
-static void gst_videodrop_get_property (GObject * object,
- guint prop_id, GValue * value, GParamSpec * pspec);
-
-static GstStateChangeReturn gst_videodrop_change_state (GstElement * element,
- GstStateChange transition);
-
-static GstElementClass *parent_class = NULL;
-
-/*static guint gst_videodrop_signals[LAST_SIGNAL] = { 0 }; */
-
-GType
-gst_videodrop_get_type (void)
-{
- static GType videodrop_type = 0;
-
- if (!videodrop_type) {
- static const GTypeInfo videodrop_info = {
- sizeof (GstVideodropClass),
- gst_videodrop_base_init,
- NULL,
- (GClassInitFunc) gst_videodrop_class_init,
- NULL,
- NULL,
- sizeof (GstVideodrop),
- 0,
- (GInstanceInitFunc) gst_videodrop_init,
- };
-
- videodrop_type = g_type_register_static (GST_TYPE_ELEMENT,
- "GstVideodrop", &videodrop_info, 0);
- }
-
- return videodrop_type;
-}
-
-static void
-gst_videodrop_base_init (gpointer g_class)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-
- gst_element_class_set_details_simple (element_class, "Frame dropper",
- "Filter/Effect/Video",
- "Re-FPS'es video by dropping frames",
- "Ronald Bultje <rbultje@ronald.bitfreak.net>");
-
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_videodrop_sink_template));
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_videodrop_src_template));
-}
-
-static void
-gst_videodrop_class_init (GstVideodropClass * klass)
-{
- GObjectClass *object_class = G_OBJECT_CLASS (klass);
- GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
-
- parent_class = g_type_class_peek_parent (klass);
-
- g_object_class_install_property (object_class, ARG_SPEED,
- g_param_spec_float ("speed", "Speed",
- "Output speed (relative to input)", 0.01, 100, 1,
- G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
- object_class->set_property = gst_videodrop_set_property;
- object_class->get_property = gst_videodrop_get_property;
-
- element_class->change_state = gst_videodrop_change_state;
-}
-
-static GstCaps *
-gst_videodrop_getcaps (GstPad * pad)
-{
- GstVideodrop *videodrop;
- GstPad *otherpad;
- GstCaps *caps, *copy, *copy2 = NULL;
- int i;
- gdouble otherfps;
- GstStructure *structure;
- gboolean negotiated;
-
- videodrop = GST_VIDEODROP (gst_pad_get_parent (pad));
-
- otherpad = (pad == videodrop->srcpad) ? videodrop->sinkpad :
- videodrop->srcpad;
- negotiated = gst_pad_is_negotiated (otherpad);
- otherfps = (pad == videodrop->srcpad) ? videodrop->from_fps :
- videodrop->to_fps;
-
- caps = gst_pad_get_allowed_caps (otherpad);
- copy = gst_caps_copy (caps);
- if (negotiated) {
- copy2 = gst_caps_copy (caps);
- }
- for (i = 0; i < gst_caps_get_size (caps); i++) {
- structure = gst_caps_get_structure (caps, i);
-
- gst_structure_set (structure,
- "framerate", GST_TYPE_DOUBLE_RANGE, 0.0, G_MAXDOUBLE, NULL);
- }
- if ((negotiated) && (videodrop->speed != 1.0)) {
- for (i = 0; i < gst_caps_get_size (copy2); i++) {
- structure = gst_caps_get_structure (copy2, i);
-
- gst_structure_set (structure,
- "framerate", G_TYPE_DOUBLE, otherfps * videodrop->speed, NULL);
- }
- gst_caps_append (copy2, copy);
- copy = copy2;
- }
- gst_caps_append (copy, caps);
-
- return copy;
-}
-
-static GstPadLinkReturn
-gst_videodrop_link (GstPad * pad, const GstCaps * caps)
-{
- GstVideodrop *videodrop;
- GstStructure *structure;
- gboolean ret;
- double fps;
- GstPad *otherpad;
-
- videodrop = GST_VIDEODROP (gst_pad_get_parent (pad));
-
- otherpad = (pad == videodrop->srcpad) ? videodrop->sinkpad :
- videodrop->srcpad;
-
- structure = gst_caps_get_structure (caps, 0);
- ret = gst_structure_get_double (structure, "framerate", &fps);
- if (!ret)
- return GST_PAD_LINK_REFUSED;
-
- if (pad == videodrop->srcpad) {
- videodrop->to_fps = fps;
- } else {
- videodrop->from_fps = fps;
- }
-
- if (gst_pad_is_negotiated (otherpad)) {
- /*
- * Ensure that the other side talks the format we're trying to set
- */
- GstCaps *newcaps = gst_caps_copy (caps);
-
- if (pad == videodrop->srcpad) {
- gst_caps_set_simple (newcaps,
- "framerate", G_TYPE_DOUBLE, videodrop->from_fps, NULL);
- } else {
- gst_caps_set_simple (newcaps,
- "framerate", G_TYPE_DOUBLE, videodrop->to_fps, NULL);
- }
- ret = gst_pad_try_set_caps (otherpad, newcaps);
- if (GST_PAD_LINK_FAILED (ret)) {
- return GST_PAD_LINK_REFUSED;
- }
- }
-
- return GST_PAD_LINK_OK;
-}
-
-static void
-gst_videodrop_init (GstVideodrop * videodrop)
-{
- GST_OBJECT_FLAG_SET (videodrop, GST_ELEMENT_EVENT_AWARE);
-
- GST_DEBUG ("gst_videodrop_init");
- videodrop->sinkpad =
- gst_pad_new_from_static_template (&gst_videodrop_sink_template, "sink");
- gst_element_add_pad (GST_ELEMENT (videodrop), videodrop->sinkpad);
- gst_pad_set_chain_function (videodrop->sinkpad, gst_videodrop_chain);
- gst_pad_set_getcaps_function (videodrop->sinkpad, gst_videodrop_getcaps);
- gst_pad_set_link_function (videodrop->sinkpad, gst_videodrop_link);
-
- videodrop->srcpad =
- gst_pad_new_from_static_template (&gst_videodrop_src_template, "src");
- gst_element_add_pad (GST_ELEMENT (videodrop), videodrop->srcpad);
- gst_pad_set_getcaps_function (videodrop->srcpad, gst_videodrop_getcaps);
- gst_pad_set_link_function (videodrop->srcpad, gst_videodrop_link);
-
- videodrop->inited = FALSE;
- videodrop->total = videodrop->pass = 0;
- videodrop->speed = 1.;
- videodrop->time_adjust = 0;
-}
-
-static void
-gst_videodrop_chain (GstPad * pad, GstData * data)
-{
- GstVideodrop *videodrop = GST_VIDEODROP (gst_pad_get_parent (pad));
- GstBuffer *buf;
-
- if (GST_IS_EVENT (data)) {
- GstEvent *event = GST_EVENT (data);
-
- if (GST_EVENT_TYPE (event) == GST_EVENT_DISCONTINUOUS) {
- /* since we rely on timestamps of the source, we need to handle
- * changes in time carefully. */
- gint64 time;
-
- if (gst_event_discont_get_value (event, GST_FORMAT_TIME, &time)) {
- videodrop->total = videodrop->pass = 0;
- videodrop->time_adjust = time;
- } else {
- GST_ELEMENT_ERROR (videodrop, STREAM, TOO_LAZY, (NULL),
- ("Received discont, but no time information"));
- gst_event_unref (event);
- return;
- }
- /* FIXME: increase timestamp / speed */
- }
-
- gst_pad_event_default (pad, event);
- return;
- }
-
- buf = GST_BUFFER (data);
- videodrop->total++;
- GST_DEBUG ("Received buffer at %u:%02u:%02u:%09u, fps=%lf, pass=%"
- G_GUINT64_FORMAT " of " G_GUINT64_FORMAT ", speed=%lf",
- (guint) (GST_BUFFER_TIMESTAMP (buf) / (GST_SECOND * 60 * 60)),
- (guint) ((GST_BUFFER_TIMESTAMP (buf) / (GST_SECOND * 60)) % 60),
- (guint) ((GST_BUFFER_TIMESTAMP (buf) / GST_SECOND) % 60),
- (guint) (GST_BUFFER_TIMESTAMP (buf) % GST_SECOND),
- videodrop->to_fps, videodrop->total, videodrop->pass, videodrop->speed);
- while (((GST_BUFFER_TIMESTAMP (buf) - videodrop->time_adjust) /
- videodrop->speed * videodrop->to_fps / GST_SECOND) >=
- videodrop->pass) {
- /* since we write to the struct (time/duration), we need a new struct,
- * but we don't want to copy around data - a subbuffer is the easiest
- * way to accomplish that... */
- GstBuffer *copy = gst_buffer_create_sub (buf, 0, GST_BUFFER_SIZE (buf));
-
- /* adjust timestamp/duration and push forward */
- GST_BUFFER_TIMESTAMP (copy) = (videodrop->time_adjust / videodrop->speed) +
- GST_SECOND * videodrop->pass / videodrop->to_fps;
- GST_BUFFER_DURATION (copy) = GST_SECOND / videodrop->to_fps;
- GST_DEBUG ("Sending out buffer from out %u:%02u:%02u:%09u",
- (guint) (GST_BUFFER_TIMESTAMP (copy) / (GST_SECOND * 60 * 60)),
- (guint) ((GST_BUFFER_TIMESTAMP (copy) / (GST_SECOND * 60)) % 60),
- (guint) ((GST_BUFFER_TIMESTAMP (copy) / GST_SECOND) % 60),
- (guint) (GST_BUFFER_TIMESTAMP (copy) % GST_SECOND));
- gst_pad_push (videodrop->srcpad, GST_DATA (copy));
-
- videodrop->pass++;
- }
-
- gst_buffer_unref (buf);
-}
-
-static void
-gst_videodrop_set_property (GObject * object,
- guint prop_id, const GValue * value, GParamSpec * pspec)
-{
- GstVideodrop *videodrop = GST_VIDEODROP (object);
-
- switch (prop_id) {
- case ARG_SPEED:
- videodrop->speed = g_value_get_float (value);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gst_videodrop_get_property (GObject * object,
- guint prop_id, GValue * value, GParamSpec * pspec)
-{
- GstVideodrop *videodrop = GST_VIDEODROP (object);
-
- switch (prop_id) {
- case ARG_SPEED:
- g_value_set_float (value, videodrop->speed);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static GstStateChangeReturn
-gst_videodrop_change_state (GstElement * element, GstStateChange transition)
-{
- GstVideodrop *videodrop = GST_VIDEODROP (element);
-
- switch (transition) {
- case GST_STATE_CHANGE_PAUSED_TO_READY:
- videodrop->inited = FALSE;
- videodrop->time_adjust = 0;
- videodrop->total = videodrop->pass = 0;
- break;
- default:
- break;
- }
-
- if (parent_class->change_state)
- return parent_class->change_state (element, transition);
-
- return GST_STATE_CHANGE_SUCCESS;
-}
-
-static gboolean
-plugin_init (GstPlugin * plugin)
-{
- return gst_element_register (plugin, "videodrop", GST_RANK_NONE,
- GST_TYPE_VIDEODROP);
-}
-
-GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
- GST_VERSION_MINOR,
- videodrop,
- "Re-FPS'es video",
- plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
+++ /dev/null
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
- ProjectType="Visual C++"
- Version="7.10"
- Name="videodrop"
- ProjectGUID="{979C216F-0ACF-4956-AE00-055A42D678D6}"
- Keyword="Win32Proj">
- <Platforms>
- <Platform
- Name="Win32"/>
- </Platforms>
- <Configurations>
- <Configuration
- Name="Debug|Win32"
- OutputDirectory="../../win32/Debug"
- IntermediateDirectory="../../win32/Debug"
- ConfigurationType="2"
- CharacterSet="2">
- <Tool
- Name="VCCLCompilerTool"
- Optimization="0"
- AdditionalIncludeDirectories="../../../gstreamer/win32;../../../gstreamer;../../../gstreamer/libs;../../../glib;../../../glib/glib;../../../glib/gmodule;"../../gst-libs";../../../popt/include;../../../libxml2/include/libxml2"
- PreprocessorDefinitions="WIN32;_DEBUG;_WINDOWS;_USRDLL;videodrop_EXPORTS;HAVE_CONFIG_H;_USE_MATH_DEFINES"
- MinimalRebuild="TRUE"
- BasicRuntimeChecks="3"
- RuntimeLibrary="3"
- UsePrecompiledHeader="0"
- WarningLevel="3"
- Detect64BitPortabilityProblems="TRUE"
- DebugInformationFormat="4"/>
- <Tool
- Name="VCCustomBuildTool"/>
- <Tool
- Name="VCLinkerTool"
- AdditionalDependencies="glib-2.0.lib gmodule-2.0.lib gthread-2.0.lib gobject-2.0.lib libgstreamer.lib gstbytestream.lib iconv.lib intl.lib"
- OutputFile="$(OutDir)/gstvideodrop.dll"
- LinkIncremental="2"
- AdditionalLibraryDirectories="../../../gstreamer/win32/Debug;../../../glib/glib;../../../glib/gmodule;../../../glib/gthread;../../../glib/gobject;../../../gettext/lib;../../../libiconv/lib"
- ModuleDefinitionFile=""
- GenerateDebugInformation="TRUE"
- ProgramDatabaseFile="$(OutDir)/videodrop.pdb"
- SubSystem="2"
- OptimizeReferences="2"
- ImportLibrary="$(OutDir)/gstvideodrop.lib"
- TargetMachine="1"/>
- <Tool
- Name="VCMIDLTool"/>
- <Tool
- Name="VCPostBuildEventTool"
- CommandLine="copy /Y $(TargetPath) c:\gstreamer\plugins"/>
- <Tool
- Name="VCPreBuildEventTool"/>
- <Tool
- Name="VCPreLinkEventTool"/>
- <Tool
- Name="VCResourceCompilerTool"/>
- <Tool
- Name="VCWebServiceProxyGeneratorTool"/>
- <Tool
- Name="VCXMLDataGeneratorTool"/>
- <Tool
- Name="VCWebDeploymentTool"/>
- <Tool
- Name="VCManagedWrapperGeneratorTool"/>
- <Tool
- Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
- </Configuration>
- <Configuration
- Name="Release|Win32"
- OutputDirectory="../../win32/Release"
- IntermediateDirectory="../../win32/Release"
- ConfigurationType="2"
- CharacterSet="2">
- <Tool
- Name="VCCLCompilerTool"
- AdditionalIncludeDirectories="../../../gstreamer/win32;../../../gstreamer;../../../gstreamer/libs;../../../glib;../../../glib/glib;../../../glib/gmodule;"../../gst-libs";../../../popt/include;../../../libxml2/include/libxml2"
- PreprocessorDefinitions="WIN32;NDEBUG;GST_DISABLE_GST_DEBUG;_WINDOWS;_USRDLL;videodrop_EXPORTS;HAVE_CONFIG_H;_USE_MATH_DEFINES"
- RuntimeLibrary="2"
- UsePrecompiledHeader="0"
- WarningLevel="3"
- Detect64BitPortabilityProblems="TRUE"
- DebugInformationFormat="3"/>
- <Tool
- Name="VCCustomBuildTool"/>
- <Tool
- Name="VCLinkerTool"
- AdditionalDependencies="glib-2.0.lib gmodule-2.0.lib gthread-2.0.lib gobject-2.0.lib libgstreamer.lib gstbytestream.lib iconv.lib intl.lib"
- OutputFile="$(OutDir)/gstvideodrop.dll"
- LinkIncremental="1"
- AdditionalLibraryDirectories="../../../gstreamer/win32/Release;../../../glib/glib;../../../glib/gmodule;../../../glib/gthread;../../../glib/gobject;../../../gettext/lib;../../../libiconv/lib"
- ModuleDefinitionFile=""
- GenerateDebugInformation="TRUE"
- SubSystem="2"
- OptimizeReferences="2"
- EnableCOMDATFolding="2"
- ImportLibrary="$(OutDir)/gstvideodrop.lib"
- TargetMachine="1"/>
- <Tool
- Name="VCMIDLTool"/>
- <Tool
- Name="VCPostBuildEventTool"
- CommandLine="copy /Y $(TargetPath) c:\gstreamer\plugins"/>
- <Tool
- Name="VCPreBuildEventTool"/>
- <Tool
- Name="VCPreLinkEventTool"/>
- <Tool
- Name="VCResourceCompilerTool"/>
- <Tool
- Name="VCWebServiceProxyGeneratorTool"/>
- <Tool
- Name="VCXMLDataGeneratorTool"/>
- <Tool
- Name="VCWebDeploymentTool"/>
- <Tool
- Name="VCManagedWrapperGeneratorTool"/>
- <Tool
- Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
- </Configuration>
- </Configurations>
- <References>
- </References>
- <Files>
- <Filter
- Name="Source Files"
- Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm;asmx"
- UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}">
- <File
- RelativePath=".\gstvideodrop.c">
- </File>
- </Filter>
- <Filter
- Name="Header Files"
- Filter="h;hpp;hxx;hm;inl;inc;xsd"
- UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}">
- <File
- RelativePath=".\gstvideodrop.h">
- </File>
- </Filter>
- <Filter
- Name="Resource Files"
- Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx"
- UniqueIdentifier="{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}">
- </Filter>
- </Files>
- <Globals>
- </Globals>
-</VisualStudioProject>