mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2025-02-01 03:52:25 +00:00
Added basic tutorial 7
This commit is contained in:
Xavi Artigas
unknown
parent
5e2462c9ae
commit
2c2daae387
4 changed files with 185 additions and 0 deletions
87
gst-sdk/tutorials/basic-tutorial-7.c
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87
gst-sdk/tutorials/basic-tutorial-7.c
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@ -0,0 +1,87 @@
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#include <gst/gst.h>
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int main(int argc, char *argv[]) {
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GstElement *pipeline, *audio_source, *tee, *audio_queue, *audio_convert, *audio_sink;
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GstElement *video_queue, *visual, *video_convert, *video_sink;
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GstBus *bus;
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GstMessage *msg;
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GstPadTemplate *tee_src_pad_template;
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GstPad *tee_audio_pad, *tee_video_pad;
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GstPad *queue_audio_pad, *queue_video_pad;
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/* Initialize GStreamer */
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gst_init (&argc, &argv);
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/* Create the elements */
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audio_source = gst_element_factory_make ("audiotestsrc", "audio_source");
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tee = gst_element_factory_make ("tee", "tee");
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audio_queue = gst_element_factory_make ("queue", "audio_queue");
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audio_convert = gst_element_factory_make ("audioconvert", "audio_convert");
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audio_sink = gst_element_factory_make ("autoaudiosink", "audio_sink");
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video_queue = gst_element_factory_make ("queue", "video_queue");
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visual = gst_element_factory_make ("wavescope", "visual");
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video_convert = gst_element_factory_make ("ffmpegcolorspace", "csp");
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video_sink = gst_element_factory_make ("autovideosink", "video_sink");
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/* Create the empty pipeline */
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pipeline = gst_pipeline_new ("test-pipeline");
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if (!pipeline || !audio_source || !tee || !audio_queue || !audio_convert || !audio_sink ||
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!video_queue || !visual || !video_convert || !video_sink) {
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g_printerr ("Not all elements could be created.\n");
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return -1;
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}
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/* Configure elements */
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g_object_set (visual, "shader", 0, NULL);
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/* Link all elements that can be automatically linked because they have "Always" pads */
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gst_bin_add_many (GST_BIN (pipeline), audio_source, tee, audio_queue, audio_convert, audio_sink,
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video_queue, visual, video_convert, video_sink, NULL);
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if (gst_element_link_many (audio_source, tee, NULL) != TRUE ||
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gst_element_link_many (audio_queue, audio_convert, audio_sink, NULL) != TRUE ||
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gst_element_link_many (video_queue, visual, video_convert, video_sink, NULL) != TRUE) {
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g_printerr ("Elements could not be linked.\n");
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gst_object_unref (pipeline);
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return -1;
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}
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/* Manually link the Tee, which has "Request" pads */
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tee_src_pad_template = gst_element_class_get_pad_template (GST_ELEMENT_GET_CLASS (tee), "src%d");
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tee_audio_pad = gst_element_request_pad (tee, tee_src_pad_template, NULL, NULL);
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g_print ("Obtained request pad %s for audio branch.\n", gst_pad_get_name (tee_audio_pad));
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queue_audio_pad = gst_element_get_static_pad (audio_queue, "sink");
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tee_video_pad = gst_element_request_pad (tee, tee_src_pad_template, NULL, NULL);
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g_print ("Obtained request pad %s for video branch.\n", gst_pad_get_name (tee_video_pad));
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queue_video_pad = gst_element_get_static_pad (video_queue, "sink");
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if (gst_pad_link (tee_audio_pad, queue_audio_pad) != GST_PAD_LINK_OK ||
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gst_pad_link (tee_video_pad, queue_video_pad) != GST_PAD_LINK_OK) {
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g_printerr ("Tee could not be linked.\n");
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gst_object_unref (pipeline);
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return -1;
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}
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gst_object_unref (queue_audio_pad);
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gst_object_unref (queue_video_pad);
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/* Start playing the pipeline */
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gst_element_set_state (pipeline, GST_STATE_PLAYING);
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/* Wait until error or EOS */
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bus = gst_element_get_bus (pipeline);
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msg = gst_bus_timed_pop_filtered (bus, GST_CLOCK_TIME_NONE, GST_MESSAGE_ERROR | GST_MESSAGE_EOS);
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/* Release the request pads from the Tee, and unref them */
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gst_element_release_request_pad (tee, tee_audio_pad);
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gst_element_release_request_pad (tee, tee_video_pad);
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gst_object_unref (tee_audio_pad);
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gst_object_unref (tee_video_pad);
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/* Free resources */
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if (msg != NULL)
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gst_message_unref (msg);
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gst_object_unref (bus);
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gst_element_set_state (pipeline, GST_STATE_NULL);
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gst_object_unref (pipeline);
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return 0;
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}
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86
vs/2010/tutorials/basic-tutorial-7/basic-tutorial-7.vcxproj
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86
vs/2010/tutorials/basic-tutorial-7/basic-tutorial-7.vcxproj
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@ -0,0 +1,86 @@
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<?xml version="1.0" encoding="utf-8"?>
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<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ItemGroup Label="ProjectConfigurations">
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<ProjectConfiguration Include="Debug|Win32">
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<Configuration>Debug</Configuration>
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<Platform>Win32</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Release|Win32">
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<Configuration>Release</Configuration>
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<Platform>Win32</Platform>
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</ProjectConfiguration>
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</ItemGroup>
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<PropertyGroup Label="Globals">
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<ProjectGuid>{B1666543-AE05-46BF-9528-95916A02A9D4}</ProjectGuid>
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<Keyword>Win32Proj</Keyword>
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<RootNamespace>basictutorial7</RootNamespace>
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</PropertyGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>true</UseDebugLibraries>
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<CharacterSet>Unicode</CharacterSet>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>false</UseDebugLibraries>
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<WholeProgramOptimization>true</WholeProgramOptimization>
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<CharacterSet>Unicode</CharacterSet>
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</PropertyGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
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<ImportGroup Label="ExtensionSettings">
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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<Import Project="$(GSTREAMER_SDK_ROOT_X86)\share\vs\2010\libs\gstreamer-0.10.props" />
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<Import Project="$(GSTREAMER_SDK_ROOT_X86)\share\vs\2010\msvc\x86.props" />
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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<Import Project="$(GSTREAMER_SDK_ROOT_X86)\share\vs\2010\libs\gstreamer-0.10.props" />
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<Import Project="$(GSTREAMER_SDK_ROOT_X86)\share\vs\2010\msvc\x86.props" />
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</ImportGroup>
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<PropertyGroup Label="UserMacros" />
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<LinkIncremental>true</LinkIncremental>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<LinkIncremental>false</LinkIncremental>
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</PropertyGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<ClCompile>
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<PrecompiledHeader>
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</PrecompiledHeader>
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<WarningLevel>Level3</WarningLevel>
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<Optimization>Disabled</Optimization>
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<PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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</ClCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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</Link>
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<PrecompiledHeader>
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</PrecompiledHeader>
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<Optimization>MaxSpeed</Optimization>
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<FunctionLevelLinking>true</FunctionLevelLinking>
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<IntrinsicFunctions>true</IntrinsicFunctions>
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<PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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</ClCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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<EnableCOMDATFolding>true</EnableCOMDATFolding>
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<OptimizeReferences>true</OptimizeReferences>
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</Link>
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</ItemDefinitionGroup>
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<ItemGroup>
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<ClCompile Include="..\..\..\..\gst-sdk\tutorials\basic-tutorial-7.c" />
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</ItemGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
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<ImportGroup Label="ExtensionTargets">
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</ImportGroup>
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</Project>
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@ -0,0 +1,6 @@
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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ItemGroup>
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<ClCompile Include="..\..\..\..\gst-sdk\tutorials\basic-tutorial-7.c" />
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</ItemGroup>
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</Project>
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@ -17,6 +17,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "playback-tutorial-2", "play
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EndProject
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "basic-tutorial-6", "basic-tutorial-6\basic-tutorial-6.vcxproj", "{A2A55F96-F759-4AF6-84EB-96ABD9D82410}"
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EndProject
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "basic-tutorial-7", "basic-tutorial-7\basic-tutorial-7.vcxproj", "{B1666543-AE05-46BF-9528-95916A02A9D4}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Win32 = Debug|Win32
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@ -55,6 +57,10 @@ Global
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{A2A55F96-F759-4AF6-84EB-96ABD9D82410}.Debug|Win32.Build.0 = Debug|Win32
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{A2A55F96-F759-4AF6-84EB-96ABD9D82410}.Release|Win32.ActiveCfg = Release|Win32
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{A2A55F96-F759-4AF6-84EB-96ABD9D82410}.Release|Win32.Build.0 = Release|Win32
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{B1666543-AE05-46BF-9528-95916A02A9D4}.Debug|Win32.ActiveCfg = Debug|Win32
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{B1666543-AE05-46BF-9528-95916A02A9D4}.Debug|Win32.Build.0 = Debug|Win32
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{B1666543-AE05-46BF-9528-95916A02A9D4}.Release|Win32.ActiveCfg = Release|Win32
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{B1666543-AE05-46BF-9528-95916A02A9D4}.Release|Win32.Build.0 = Release|Win32
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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