ac3parse: remove unported 0.8 plugin
New ac3parse lives in gst-plugin-bad. Remove this to avoid confusion.
This commit is contained in:
Stefan Kost
parent
1f7589fa4e
commit
c22772a5bb
7
gst/ac3parse/.gitignore
vendored
7
gst/ac3parse/.gitignore
vendored
@ -1,7 +0,0 @@
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Makefile
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Makefile.in
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*.o
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*.lo
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*.la
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.deps
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.libs
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@ -1,13 +0,0 @@
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plugin_LTLIBRARIES = libgstac3parse.la
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libgstac3parse_la_SOURCES = gstac3parse.c
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noinst_HEADERS = gstac3parse.h
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libgstac3parse_la_CFLAGS = $(GST_CFLAGS)
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libgstac3parse_la_LIBADD =
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libgstac3parse_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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libgstac3parse_la_LIBTOOLFLAGS = --tag=disable-static
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EXTRA_DIST = README
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@ -1,10 +0,0 @@
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AC3 Audio Parser
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================
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This element parses out ac3 audio data. It's based heavily on the
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mp3parse element, with some minor changes to calculate frame sizes for ac3
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instead of mp3.
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It will take an mpeg audio stream in any form on its 'src' input, with any
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buffer size, and split it into buffers containing a single frame each.
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NOTE: ancillary data is not dealt with right now.
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@ -1,148 +0,0 @@
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<?xml version="1.0" encoding="Windows-1252"?>
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<VisualStudioProject
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ProjectType="Visual C++"
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Version="7.10"
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Name="ac3parse"
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ProjectGUID="{979C216F-0ACF-4956-AE00-055A42D678A0}"
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Keyword="Win32Proj">
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<Platforms>
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<Platform
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Name="Win32"/>
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</Platforms>
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<Configurations>
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<Configuration
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Name="Debug|Win32"
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OutputDirectory="../../win32/Debug"
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IntermediateDirectory="../../win32/Debug"
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ConfigurationType="2"
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CharacterSet="2">
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<Tool
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Name="VCCLCompilerTool"
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Optimization="0"
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AdditionalIncludeDirectories="../../../gstreamer/win32;../../../gstreamer;../../../gstreamer/libs;../../../glib;../../../glib/glib;../../../glib/gmodule;"../../gst-libs";../../../popt/include;../../../libxml2/include/libxml2"
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PreprocessorDefinitions="WIN32;_DEBUG;_WINDOWS;_USRDLL;ac3parse_EXPORTS;HAVE_CONFIG_H;_USE_MATH_DEFINES"
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MinimalRebuild="TRUE"
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BasicRuntimeChecks="3"
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RuntimeLibrary="3"
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UsePrecompiledHeader="0"
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WarningLevel="3"
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Detect64BitPortabilityProblems="TRUE"
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DebugInformationFormat="4"/>
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<Tool
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Name="VCCustomBuildTool"/>
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<Tool
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Name="VCLinkerTool"
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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"
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OutputFile="$(OutDir)/gstac3parse.dll"
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LinkIncremental="2"
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AdditionalLibraryDirectories="../../../gstreamer/win32/Debug;../../../glib/glib;../../../glib/gmodule;../../../glib/gthread;../../../glib/gobject;../../../gettext/lib;../../../libiconv/lib"
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ModuleDefinitionFile=""
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GenerateDebugInformation="TRUE"
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ProgramDatabaseFile="$(OutDir)/ac3parse.pdb"
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SubSystem="2"
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OptimizeReferences="2"
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ImportLibrary="$(OutDir)/gstac3parse.lib"
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TargetMachine="1"/>
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<Tool
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Name="VCMIDLTool"/>
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<Tool
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Name="VCPostBuildEventTool"
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CommandLine="copy /Y $(TargetPath) c:\gstreamer\plugins"/>
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<Tool
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Name="VCPreBuildEventTool"/>
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<Tool
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Name="VCPreLinkEventTool"/>
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<Tool
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Name="VCResourceCompilerTool"/>
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<Tool
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Name="VCWebServiceProxyGeneratorTool"/>
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<Tool
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Name="VCXMLDataGeneratorTool"/>
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<Tool
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Name="VCWebDeploymentTool"/>
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<Tool
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Name="VCManagedWrapperGeneratorTool"/>
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<Tool
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Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
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</Configuration>
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<Configuration
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Name="Release|Win32"
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OutputDirectory="../../win32/Release"
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IntermediateDirectory="../../win32/Release"
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ConfigurationType="2"
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CharacterSet="2">
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<Tool
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Name="VCCLCompilerTool"
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AdditionalIncludeDirectories="../../../gstreamer/win32;../../../gstreamer;../../../gstreamer/libs;../../../glib;../../../glib/glib;../../../glib/gmodule;"../../gst-libs";../../../popt/include;../../../libxml2/include/libxml2"
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PreprocessorDefinitions="WIN32;NDEBUG;GST_DISABLE_GST_DEBUG;_WINDOWS;_USRDLL;ac3parse_EXPORTS;HAVE_CONFIG_H;_USE_MATH_DEFINES"
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RuntimeLibrary="2"
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UsePrecompiledHeader="0"
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WarningLevel="3"
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Detect64BitPortabilityProblems="TRUE"
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DebugInformationFormat="3"/>
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<Tool
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Name="VCCustomBuildTool"/>
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<Tool
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Name="VCLinkerTool"
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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"
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OutputFile="$(OutDir)/gstac3parse.dll"
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LinkIncremental="1"
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AdditionalLibraryDirectories="../../../gstreamer/win32/Release;../../../glib/glib;../../../glib/gmodule;../../../glib/gthread;../../../glib/gobject;../../../gettext/lib;../../../libiconv/lib"
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ModuleDefinitionFile=""
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GenerateDebugInformation="TRUE"
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SubSystem="2"
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OptimizeReferences="2"
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EnableCOMDATFolding="2"
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ImportLibrary="$(OutDir)/gstac3parse.lib"
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TargetMachine="1"/>
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<Tool
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Name="VCMIDLTool"/>
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<Tool
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Name="VCPostBuildEventTool"
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CommandLine="copy /Y $(TargetPath) c:\gstreamer\plugins"/>
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<Tool
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Name="VCPreBuildEventTool"/>
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<Tool
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Name="VCPreLinkEventTool"/>
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<Tool
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Name="VCResourceCompilerTool"/>
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<Tool
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Name="VCWebServiceProxyGeneratorTool"/>
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<Tool
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Name="VCXMLDataGeneratorTool"/>
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<Tool
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Name="VCWebDeploymentTool"/>
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<Tool
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Name="VCManagedWrapperGeneratorTool"/>
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<Tool
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Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
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</Configuration>
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</Configurations>
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<References>
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</References>
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<Files>
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<Filter
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Name="Source Files"
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Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm;asmx"
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UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}">
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<File
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RelativePath=".\gstac3parse.c">
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</File>
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</Filter>
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<Filter
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Name="Header Files"
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Filter="h;hpp;hxx;hm;inl;inc;xsd"
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UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}">
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<File
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RelativePath=".\gstac3parse.h">
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</File>
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</Filter>
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<Filter
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Name="Resource Files"
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Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx"
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UniqueIdentifier="{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}">
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</Filter>
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</Files>
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<Globals>
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</Globals>
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</VisualStudioProject>
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@ -1,444 +0,0 @@
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/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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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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/* Element-Checklist-Version: 5 */
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#define PCM_BUFFER_SIZE (1152*4)
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/*#define DEBUG_ENABLED*/
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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 "gstac3parse.h"
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/* struct and table stolen from ac3dec by Aaron Holtzman */
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struct frmsize_s
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{
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guint16 bit_rate;
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guint16 frm_size[3];
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};
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static struct frmsize_s frmsizecod_tbl[] = {
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{32, {64, 69, 96}},
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{32, {64, 70, 96}},
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{40, {80, 87, 120}},
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{40, {80, 88, 120}},
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{48, {96, 104, 144}},
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{48, {96, 105, 144}},
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{56, {112, 121, 168}},
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{56, {112, 122, 168}},
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{64, {128, 139, 192}},
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{64, {128, 140, 192}},
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{80, {160, 174, 240}},
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{80, {160, 175, 240}},
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{96, {192, 208, 288}},
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{96, {192, 209, 288}},
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{112, {224, 243, 336}},
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{112, {224, 244, 336}},
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{128, {256, 278, 384}},
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{128, {256, 279, 384}},
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{160, {320, 348, 480}},
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{160, {320, 349, 480}},
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{192, {384, 417, 576}},
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{192, {384, 418, 576}},
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{224, {448, 487, 672}},
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{224, {448, 488, 672}},
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{256, {512, 557, 768}},
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{256, {512, 558, 768}},
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{320, {640, 696, 960}},
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{320, {640, 697, 960}},
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{384, {768, 835, 1152}},
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{384, {768, 836, 1152}},
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{448, {896, 975, 1344}},
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{448, {896, 976, 1344}},
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{512, {1024, 1114, 1536}},
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{512, {1024, 1115, 1536}},
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{576, {1152, 1253, 1728}},
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{576, {1152, 1254, 1728}},
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{640, {1280, 1393, 1920}},
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{640, {1280, 1394, 1920}}
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};
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/* GstAc3Parse signals and args */
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enum
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{
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/* FILL ME */
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LAST_SIGNAL
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};
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enum
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{
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ARG_0,
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ARG_SKIP
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/* FILL ME */
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};
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static GstStaticPadTemplate gst_ac3parse_src_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/x-ac3, "
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"channels = (int) [ 1, 6 ], " "rate = (int) [ 32000, 48000 ]")
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);
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static GstStaticPadTemplate gst_ac3parse_sink_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/x-ac3")
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);
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static void gst_ac3parse_class_init (gpointer g_class);
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static void gst_ac3parse_init (GstAc3Parse * ac3parse);
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static void gst_ac3parse_chain (GstPad * pad, GstData * data);
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static void gst_ac3parse_set_property (GObject * object,
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guint prop_id, const GValue * value, GParamSpec * pspec);
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static void gst_ac3parse_get_property (GObject * object,
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guint prop_id, GValue * value, GParamSpec * pspec);
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static GstStateChangeReturn gst_ac3parse_change_state (GstElement * element,
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GstStateChange transition);
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static GstElementClass *parent_class = NULL;
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/*static guint gst_ac3parse_signals[LAST_SIGNAL] = { 0 };*/
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GType
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ac3parse_get_type (void)
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{
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static GType ac3parse_type = 0;
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if (!ac3parse_type) {
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static const GTypeInfo ac3parse_info = {
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sizeof (GstAc3ParseClass), NULL,
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NULL,
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(GClassInitFunc) gst_ac3parse_class_init,
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NULL,
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NULL,
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sizeof (GstAc3Parse),
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0,
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(GInstanceInitFunc) gst_ac3parse_init,
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};
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ac3parse_type =
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g_type_register_static (GST_TYPE_ELEMENT, "GstAc3Parse", &ac3parse_info,
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0);
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}
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return ac3parse_type;
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}
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static void
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gst_ac3parse_class_init (gpointer g_class)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstAc3ParseClass *klass;
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klass = (GstAc3ParseClass *) g_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&gst_ac3parse_src_template));
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&gst_ac3parse_sink_template));
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gst_element_class_set_details_simple (gstelement_class, "AC3 Parser",
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"Codec/Parser/Audio",
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"Parses and frames AC3 audio streams, provides seek",
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"Erik Walthinsen <omega@cse.ogi.edu>");
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SKIP, g_param_spec_int ("skip", "skip", "skip", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); /* CHECKME */
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parent_class = g_type_class_peek_parent (klass);
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gobject_class->set_property = gst_ac3parse_set_property;
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gobject_class->get_property = gst_ac3parse_get_property;
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gstelement_class->change_state = gst_ac3parse_change_state;
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}
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static void
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gst_ac3parse_init (GstAc3Parse * ac3parse)
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{
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ac3parse->sinkpad =
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||||||
gst_pad_new_from_static_template (&gst_ac3parse_sink_template, "sink");
|
|
||||||
gst_element_add_pad (GST_ELEMENT (ac3parse), ac3parse->sinkpad);
|
|
||||||
gst_pad_set_chain_function (ac3parse->sinkpad, gst_ac3parse_chain);
|
|
||||||
|
|
||||||
ac3parse->srcpad =
|
|
||||||
gst_pad_new_from_static_template (&gst_ac3parse_src_template, "src");
|
|
||||||
gst_pad_use_explicit_caps (ac3parse->srcpad);
|
|
||||||
gst_element_add_pad (GST_ELEMENT (ac3parse), ac3parse->srcpad);
|
|
||||||
|
|
||||||
ac3parse->partialbuf = NULL;
|
|
||||||
ac3parse->skip = 0;
|
|
||||||
|
|
||||||
ac3parse->sample_rate = ac3parse->channels = -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
static void
|
|
||||||
gst_ac3parse_chain (GstPad * pad, GstData * _data)
|
|
||||||
{
|
|
||||||
GstBuffer *buf = GST_BUFFER (_data);
|
|
||||||
GstAc3Parse *ac3parse;
|
|
||||||
guchar *data;
|
|
||||||
glong size, offset = 0;
|
|
||||||
guint16 header;
|
|
||||||
guint8 channeldata, acmod, mask;
|
|
||||||
GstBuffer *outbuf = NULL;
|
|
||||||
gint bpf;
|
|
||||||
guint sample_rate = -1, channels = -1;
|
|
||||||
|
|
||||||
g_return_if_fail (pad != NULL);
|
|
||||||
g_return_if_fail (GST_IS_PAD (pad));
|
|
||||||
g_return_if_fail (buf != NULL);
|
|
||||||
/* g_return_if_fail(GST_IS_BUFFER(buf)); */
|
|
||||||
|
|
||||||
ac3parse = GST_AC3PARSE (GST_OBJECT_PARENT (pad));
|
|
||||||
GST_DEBUG ("ac3parse: received buffer of %d bytes", GST_BUFFER_SIZE (buf));
|
|
||||||
|
|
||||||
/* deal with partial frame from previous buffer */
|
|
||||||
if (ac3parse->partialbuf) {
|
|
||||||
GstBuffer *merge;
|
|
||||||
|
|
||||||
merge = gst_buffer_merge (ac3parse->partialbuf, buf);
|
|
||||||
gst_buffer_unref (buf);
|
|
||||||
gst_buffer_unref (ac3parse->partialbuf);
|
|
||||||
ac3parse->partialbuf = merge;
|
|
||||||
} else {
|
|
||||||
ac3parse->partialbuf = buf;
|
|
||||||
}
|
|
||||||
|
|
||||||
data = GST_BUFFER_DATA (ac3parse->partialbuf);
|
|
||||||
size = GST_BUFFER_SIZE (ac3parse->partialbuf);
|
|
||||||
|
|
||||||
/* we're searching for at least 7 bytes. first the
|
|
||||||
* syncinfo, where 2 bytes are for the syncword
|
|
||||||
* (header ID, 0x0b77), 2 bytes crc1 (checksum) and 1 byte
|
|
||||||
* fscod+fmrsizecod (framerate/bitrate) and then the
|
|
||||||
* bitstreaminfo bsid (version), bsmod (data type) and
|
|
||||||
* acmod (channel info, 3 bits). Then some "maybe"
|
|
||||||
* bits, and then the LFE indicator (subwoofer bit) */
|
|
||||||
while (offset < size - 6) {
|
|
||||||
int skipped = 0;
|
|
||||||
|
|
||||||
GST_DEBUG ("ac3parse: offset %ld, size %ld ", offset, size);
|
|
||||||
|
|
||||||
/* search for a possible start byte */
|
|
||||||
for (; ((data[offset] != 0x0b) && (offset < size - 6)); offset++)
|
|
||||||
skipped++;
|
|
||||||
if (skipped) {
|
|
||||||
fprintf (stderr, "ac3parse: **** now at %ld skipped %d bytes (FIXME?)\n",
|
|
||||||
offset, skipped);
|
|
||||||
}
|
|
||||||
/* construct the header word */
|
|
||||||
header = GST_READ_UINT16_BE (data + offset);
|
|
||||||
/* g_print("AC3PARSE: sync word is 0x%02X\n",header); */
|
|
||||||
/* if it's a valid header, go ahead and send off the frame */
|
|
||||||
if (header == 0x0b77) {
|
|
||||||
gint rate, fsize;
|
|
||||||
|
|
||||||
/* g_print("AC3PARSE: found sync at %d\n",offset); */
|
|
||||||
/* get the bits we're interested in */
|
|
||||||
rate = (data[offset + 4] >> 6) & 0x3;
|
|
||||||
switch (rate) {
|
|
||||||
case 0x0: /* 00b */
|
|
||||||
sample_rate = 48000;
|
|
||||||
break;
|
|
||||||
case 0x1: /* 01b */
|
|
||||||
sample_rate = 44100;
|
|
||||||
break;
|
|
||||||
case 0x2: /* 10b */
|
|
||||||
sample_rate = 32000;
|
|
||||||
break;
|
|
||||||
case 0x3: /* 11b */
|
|
||||||
default:
|
|
||||||
/* reserved. if this happens, we're screwed */
|
|
||||||
g_assert (0);
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
fsize = data[offset + 4] & 0x3f;
|
|
||||||
/* calculate the bpf of the frame */
|
|
||||||
bpf = frmsizecod_tbl[fsize].frm_size[rate] * 2;
|
|
||||||
/* calculate number of channels */
|
|
||||||
channeldata = data[offset + 6]; /* skip bsid/bsmod */
|
|
||||||
acmod = (channeldata >> 5) & 0x7;
|
|
||||||
switch (acmod) {
|
|
||||||
case 0x1: /* 001b = 1 channel */
|
|
||||||
channels = 1;
|
|
||||||
break;
|
|
||||||
case 0x0: /* 000b = 2 independent channels */
|
|
||||||
case 0x2: /* 010b = 2x front (stereo) */
|
|
||||||
channels = 2;
|
|
||||||
break;
|
|
||||||
case 0x3: /* 011b = 3 front */
|
|
||||||
case 0x4: /* 100b = 2 front, 1 rear */
|
|
||||||
channels = 3;
|
|
||||||
break;
|
|
||||||
case 0x5: /* 101b = 3 front, 1 rear */
|
|
||||||
case 0x6: /* 110b = 2 front, 2 rear */
|
|
||||||
channels = 4;
|
|
||||||
break;
|
|
||||||
case 0x7: /* 111b = 3 front, 2 rear */
|
|
||||||
channels = 5;
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
/* whaaaaaaaaaaaaaa!!!!!!!!!!! */
|
|
||||||
g_assert (0);
|
|
||||||
}
|
|
||||||
/* fetch LFE bit (subwoofer) */
|
|
||||||
mask = 0x10;
|
|
||||||
if (acmod & 0x1 && acmod != 0x1) /* 3 front speakers? */
|
|
||||||
mask >>= 2;
|
|
||||||
if (acmod & 0x4) /* surround channel? */
|
|
||||||
mask >>= 2;
|
|
||||||
if (acmod == 0x2) /* 2/0 mode? */
|
|
||||||
mask >>= 2;
|
|
||||||
if (channeldata & mask) /* LFE: do we have a subwoofer channel? */
|
|
||||||
channels++;
|
|
||||||
/* if we don't have the whole frame... */
|
|
||||||
if ((size - offset) < bpf) {
|
|
||||||
GST_DEBUG ("ac3parse: partial buffer needed %ld < %d ", size - offset,
|
|
||||||
bpf);
|
|
||||||
break;
|
|
||||||
} else {
|
|
||||||
gboolean need_capsnego = FALSE;
|
|
||||||
|
|
||||||
outbuf = gst_buffer_create_sub (ac3parse->partialbuf, offset, bpf);
|
|
||||||
|
|
||||||
/* make sure our properties still match */
|
|
||||||
if (channels > 0 && ac3parse->channels != channels) {
|
|
||||||
ac3parse->channels = channels;
|
|
||||||
need_capsnego = TRUE;
|
|
||||||
}
|
|
||||||
if (sample_rate > 0 && ac3parse->sample_rate != sample_rate) {
|
|
||||||
ac3parse->sample_rate = sample_rate;
|
|
||||||
need_capsnego = TRUE;
|
|
||||||
}
|
|
||||||
if (need_capsnego) {
|
|
||||||
GstCaps *newcaps;
|
|
||||||
|
|
||||||
newcaps = gst_caps_new_simple ("audio/x-ac3",
|
|
||||||
"channels", G_TYPE_INT, channels,
|
|
||||||
"rate", G_TYPE_INT, sample_rate, NULL);
|
|
||||||
gst_pad_set_explicit_caps (ac3parse->srcpad, newcaps);
|
|
||||||
}
|
|
||||||
|
|
||||||
offset += bpf;
|
|
||||||
if (ac3parse->skip == 0 && GST_PAD_IS_LINKED (ac3parse->srcpad)) {
|
|
||||||
GST_DEBUG ("ac3parse: pushing buffer of %d bytes",
|
|
||||||
GST_BUFFER_SIZE (outbuf));
|
|
||||||
gst_pad_push (ac3parse->srcpad, GST_DATA (outbuf));
|
|
||||||
} else {
|
|
||||||
GST_DEBUG ("ac3parse: skipping buffer of %d bytes",
|
|
||||||
GST_BUFFER_SIZE (outbuf));
|
|
||||||
gst_buffer_unref (outbuf);
|
|
||||||
ac3parse->skip--;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
offset++;
|
|
||||||
fprintf (stderr, "ac3parse: *** wrong header, skipping byte (FIXME?)\n");
|
|
||||||
}
|
|
||||||
}
|
|
||||||
/* if we have processed this block and there are still */
|
|
||||||
/* bytes left not in a partial block, copy them over. */
|
|
||||||
if (size - offset > 0) {
|
|
||||||
gint remainder = (size - offset);
|
|
||||||
|
|
||||||
GST_DEBUG ("ac3parse: partial buffer needed %d for trailing bytes",
|
|
||||||
remainder);
|
|
||||||
|
|
||||||
outbuf = gst_buffer_create_sub (ac3parse->partialbuf, offset, remainder);
|
|
||||||
gst_buffer_unref (ac3parse->partialbuf);
|
|
||||||
ac3parse->partialbuf = outbuf;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
static void
|
|
||||||
gst_ac3parse_set_property (GObject * object, guint prop_id,
|
|
||||||
const GValue * value, GParamSpec * pspec)
|
|
||||||
{
|
|
||||||
GstAc3Parse *src;
|
|
||||||
|
|
||||||
g_return_if_fail (GST_IS_AC3PARSE (object));
|
|
||||||
src = GST_AC3PARSE (object);
|
|
||||||
|
|
||||||
switch (prop_id) {
|
|
||||||
case ARG_SKIP:
|
|
||||||
src->skip = g_value_get_int (value);
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
static void
|
|
||||||
gst_ac3parse_get_property (GObject * object, guint prop_id, GValue * value,
|
|
||||||
GParamSpec * pspec)
|
|
||||||
{
|
|
||||||
GstAc3Parse *src;
|
|
||||||
|
|
||||||
g_return_if_fail (GST_IS_AC3PARSE (object));
|
|
||||||
src = GST_AC3PARSE (object);
|
|
||||||
|
|
||||||
switch (prop_id) {
|
|
||||||
case ARG_SKIP:
|
|
||||||
g_value_set_int (value, src->skip);
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
static GstStateChangeReturn
|
|
||||||
gst_ac3parse_change_state (GstElement * element, GstStateChange transition)
|
|
||||||
{
|
|
||||||
GstAc3Parse *ac3parse = GST_AC3PARSE (element);
|
|
||||||
|
|
||||||
switch (transition) {
|
|
||||||
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
||||||
/* reset stream info */
|
|
||||||
ac3parse->channels = ac3parse->sample_rate = -1;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (GST_ELEMENT_CLASS (parent_class)->change_state)
|
|
||||||
return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
||||||
|
|
||||||
return GST_STATE_CHANGE_SUCCESS;
|
|
||||||
}
|
|
||||||
|
|
||||||
static gboolean
|
|
||||||
plugin_init (GstPlugin * plugin)
|
|
||||||
{
|
|
||||||
if (!gst_element_register (plugin, "ac3parse", GST_RANK_NONE,
|
|
||||||
GST_TYPE_AC3PARSE)) {
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
|
|
||||||
return TRUE;
|
|
||||||
}
|
|
||||||
|
|
||||||
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
|
||||||
GST_VERSION_MINOR,
|
|
||||||
"ac3parse",
|
|
||||||
"ac3 parsing", plugin_init, VERSION, "LGPL", GST_PACKAGE, GST_ORIGIN)
|
|
||||||
@ -1,74 +0,0 @@
|
|||||||
/* 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.
|
|
||||||
*/
|
|
||||||
|
|
||||||
|
|
||||||
#ifndef __AC3PARSE_H__
|
|
||||||
#define __AC3PARSE_H__
|
|
||||||
|
|
||||||
|
|
||||||
#include <gst/gst.h>
|
|
||||||
|
|
||||||
|
|
||||||
#ifdef __cplusplus
|
|
||||||
extern "C" {
|
|
||||||
#endif /* __cplusplus */
|
|
||||||
|
|
||||||
|
|
||||||
#define GST_TYPE_AC3PARSE \
|
|
||||||
(ac3parse_get_type())
|
|
||||||
#define GST_AC3PARSE(obj) \
|
|
||||||
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AC3PARSE,GstAc3Parse))
|
|
||||||
#define GST_AC3PARSE_CLASS(klass) \
|
|
||||||
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AC3PARSE,GstAc3ParseClass))
|
|
||||||
#define GST_IS_AC3PARSE(obj) \
|
|
||||||
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AC3PARSE))
|
|
||||||
#define GST_IS_AC3PARSE_CLASS(klass) \
|
|
||||||
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AC3PARSE)))
|
|
||||||
|
|
||||||
typedef struct _GstAc3Parse GstAc3Parse;
|
|
||||||
typedef struct _GstAc3ParseClass GstAc3ParseClass;
|
|
||||||
|
|
||||||
struct _GstAc3Parse {
|
|
||||||
GstElement element;
|
|
||||||
|
|
||||||
GstPad *sinkpad,*srcpad;
|
|
||||||
|
|
||||||
GstBuffer *partialbuf; /* previous buffer (if carryover) */
|
|
||||||
guint lastframebytes; /* bytes in previous of last frame so far */
|
|
||||||
guint lastframesize; /* total length of last frame */
|
|
||||||
guint skip; /* number of frames to skip */
|
|
||||||
|
|
||||||
/* some stream parameters */
|
|
||||||
gint sample_rate;
|
|
||||||
gint channels;
|
|
||||||
};
|
|
||||||
|
|
||||||
struct _GstAc3ParseClass {
|
|
||||||
GstElementClass parent_class;
|
|
||||||
};
|
|
||||||
|
|
||||||
GType gst_ac3parse_get_type(void);
|
|
||||||
|
|
||||||
|
|
||||||
#ifdef __cplusplus
|
|
||||||
}
|
|
||||||
#endif /* __cplusplus */
|
|
||||||
|
|
||||||
|
|
||||||
#endif /* __AC3PARSE_H__ */
|
|
||||||
Loading…
x
Reference in New Issue
Block a user