diff options
Diffstat (limited to 'indra/media_plugins/gstreamer10/media_plugin_gstreamer10.cpp')
| -rw-r--r-- | indra/media_plugins/gstreamer10/media_plugin_gstreamer10.cpp | 958 |
1 files changed, 958 insertions, 0 deletions
diff --git a/indra/media_plugins/gstreamer10/media_plugin_gstreamer10.cpp b/indra/media_plugins/gstreamer10/media_plugin_gstreamer10.cpp new file mode 100644 index 0000000000..0f45c151a2 --- /dev/null +++ b/indra/media_plugins/gstreamer10/media_plugin_gstreamer10.cpp @@ -0,0 +1,958 @@ +/** + * @file media_plugin_gstreamer10.cpp + * @brief GStreamer-1.0 plugin for LLMedia API plugin system + * + * @cond + * $LicenseInfo:firstyear=2016&license=viewerlgpl$ + * Second Life Viewer Source Code + * Copyright (C) 2016, Linden Research, Inc. / Nicky Dasmijn + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. + * + * 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA + * $/LicenseInfo$ + * @endcond + */ + +#define FLIP_Y + +#include "linden_common.h" + +#include "llgl.h" + +#include "llplugininstance.h" +#include "llpluginmessage.h" +#include "llpluginmessageclasses.h" +#include "media_plugin_base.h" + +#define G_DISABLE_CAST_CHECKS +extern "C" { +#include <gst/gst.h> +#include <gst/app/gstappsink.h> +} + +SymbolGrabber gstSymbolGrabber; + +#include "llmediaimplgstreamer_syms_raw.inc" + +static inline void llgst_caps_unref( GstCaps * caps ) +{ + llgst_mini_object_unref( GST_MINI_OBJECT_CAST( caps ) ); +} + +static inline void llgst_sample_unref( GstSample *aSample ) +{ + llgst_mini_object_unref( GST_MINI_OBJECT_CAST( aSample ) ); +} + +////////////////////////////////////////////////////////////////////////////// +// +class MediaPluginGStreamer10 : public MediaPluginBase +{ +public: + MediaPluginGStreamer10(LLPluginInstance::sendMessageFunction host_send_func, void *host_user_data); + ~MediaPluginGStreamer10(); + + /* virtual */ void receiveMessage(const char *message_string); + + static bool startup(); + static bool closedown(); + + gboolean processGSTEvents(GstBus *bus, GstMessage *message); + +private: + std::string getVersion(); + bool navigateTo( const std::string urlIn ); + bool seek( double time_sec ); + bool setVolume( float volume ); + + // misc + bool pause(); + bool stop(); + bool play(double rate); + bool getTimePos(double &sec_out); + + double MIN_LOOP_SEC = 1.0F; + U32 INTERNAL_TEXTURE_SIZE = 1024; + + bool mIsLooping; + + enum ECommand { + COMMAND_NONE, + COMMAND_STOP, + COMMAND_PLAY, + COMMAND_FAST_FORWARD, + COMMAND_FAST_REWIND, + COMMAND_PAUSE, + COMMAND_SEEK, + }; + ECommand mCommand; + +private: + bool unload(); + bool load(); + + bool update(int milliseconds); + void mouseDown( int x, int y ); + void mouseUp( int x, int y ); + void mouseMove( int x, int y ); + + static bool mDoneInit; + + guint mBusWatchID; + + float mVolume; + + int mDepth; + + // padded texture size we need to write into + int mTextureWidth; + int mTextureHeight; + + bool mSeekWanted; + double mSeekDestination; + + // Very GStreamer-specific + GMainLoop *mPump; // event pump for this media + GstElement *mPlaybin; + GstAppSink *mAppSink; +}; + +//static +bool MediaPluginGStreamer10::mDoneInit = false; + +MediaPluginGStreamer10::MediaPluginGStreamer10( LLPluginInstance::sendMessageFunction host_send_func, + void *host_user_data ) + : MediaPluginBase(host_send_func, host_user_data) + , mBusWatchID ( 0 ) + , mSeekWanted(false) + , mSeekDestination(0.0) + , mPump ( nullptr ) + , mPlaybin ( nullptr ) + , mAppSink ( nullptr ) + , mCommand ( COMMAND_NONE ) +{ +} + +gboolean MediaPluginGStreamer10::processGSTEvents(GstBus *bus, GstMessage *message) +{ + if (!message) + return TRUE; // shield against GStreamer bug + + switch (GST_MESSAGE_TYPE (message)) + { + case GST_MESSAGE_BUFFERING: + { + // NEEDS GST 0.10.11+ + if (llgst_message_parse_buffering) + { + gint percent = 0; + llgst_message_parse_buffering(message, &percent); + } + break; + } + case GST_MESSAGE_STATE_CHANGED: + { + GstState old_state; + GstState new_state; + GstState pending_state; + llgst_message_parse_state_changed(message, + &old_state, + &new_state, + &pending_state); + + switch (new_state) + { + case GST_STATE_VOID_PENDING: + break; + case GST_STATE_NULL: + break; + case GST_STATE_READY: + setStatus(STATUS_LOADED); + break; + case GST_STATE_PAUSED: + setStatus(STATUS_PAUSED); + break; + case GST_STATE_PLAYING: + setStatus(STATUS_PLAYING); + break; + } + break; + } + case GST_MESSAGE_ERROR: + { + GError *err = nullptr; + gchar *debug = nullptr; + + llgst_message_parse_error (message, &err, &debug); + if (err) + llg_error_free (err); + llg_free (debug); + + mCommand = COMMAND_STOP; + + setStatus(STATUS_ERROR); + + break; + } + case GST_MESSAGE_INFO: + { + if (llgst_message_parse_info) + { + GError *err = nullptr; + gchar *debug = nullptr; + + llgst_message_parse_info (message, &err, &debug); + if (err) + llg_error_free (err); + llg_free (debug); + } + break; + } + case GST_MESSAGE_WARNING: + { + GError *err = nullptr; + gchar *debug = nullptr; + + llgst_message_parse_warning (message, &err, &debug); + if (err) + llg_error_free (err); + llg_free (debug); + + break; + } + case GST_MESSAGE_EOS: + /* end-of-stream */ + if (mIsLooping) + { + double eos_pos_sec = 0.0F; + bool got_eos_position = getTimePos(eos_pos_sec); + + if (got_eos_position && eos_pos_sec < MIN_LOOP_SEC) + { + // if we know that the movie is really short, don't + // loop it else it can easily become a time-hog + // because of GStreamer spin-up overhead + // inject a COMMAND_PAUSE + mCommand = COMMAND_PAUSE; + } + else + { + stop(); + play(1.0); + } + } + else // not a looping media + { + // inject a COMMAND_STOP + mCommand = COMMAND_STOP; + } + break; + default: + /* unhandled message */ + break; + } + + /* we want to be notified again the next time there is a message + * on the bus, so return true (false means we want to stop watching + * for messages on the bus and our callback should not be called again) + */ + return TRUE; +} + +extern "C" { + gboolean llmediaimplgstreamer_bus_callback (GstBus *bus, + GstMessage *message, + gpointer data) + { + MediaPluginGStreamer10 *impl = (MediaPluginGStreamer10*)data; + return impl->processGSTEvents(bus, message); + } +} // extern "C" + + + +bool MediaPluginGStreamer10::navigateTo ( const std::string urlIn ) +{ + if (!mDoneInit) + return false; // error + + setStatus(STATUS_LOADING); + + mSeekWanted = false; + + if (nullptr == mPump || nullptr == mPlaybin) + { + setStatus(STATUS_ERROR); + return false; // error + } + + llg_object_set (G_OBJECT (mPlaybin), "uri", urlIn.c_str(), nullptr); + + // navigateTo implicitly plays, too. + play(1.0); + + return true; +} + + +class GstSampleUnref +{ + GstSample *mT; +public: + GstSampleUnref( GstSample *aT ) + : mT( aT ) + { llassert_always( mT ); } + + ~GstSampleUnref( ) + { llgst_sample_unref( mT ); } +}; + +bool MediaPluginGStreamer10::update(int milliseconds) +{ + if (!mDoneInit) + return false; // error + + // DEBUGMSG("updating media..."); + + // sanity check + if (nullptr == mPump || nullptr == mPlaybin) + { + return false; + } + + // see if there's an outstanding seek wanted + if (mSeekWanted && + // bleh, GST has to be happy that the movie is really truly playing + // or it may quietly ignore the seek (with rtsp:// at least). + (GST_STATE(mPlaybin) == GST_STATE_PLAYING)) + { + seek(mSeekDestination); + mSeekWanted = false; + } + + // *TODO: time-limit - but there isn't a lot we can do here, most + // time is spent in gstreamer's own opaque worker-threads. maybe + // we can do something sneaky like only unlock the video object + // for 'milliseconds' and otherwise hold the lock. + while (llg_main_context_pending(llg_main_loop_get_context(mPump))) + { + llg_main_context_iteration(llg_main_loop_get_context(mPump), FALSE); + } + + // check for availability of a new frame + + if( !mAppSink ) + return true; + + if( GST_STATE(mPlaybin) != GST_STATE_PLAYING) // Do not try to pull a sample if not in playing state + return true; + + GstSample *pSample = llgst_app_sink_pull_sample( mAppSink ); + if(!pSample) + return false; // Done playing + + GstSampleUnref oSampleUnref( pSample ); + GstCaps *pCaps = llgst_sample_get_caps ( pSample ); + if (!pCaps) + return false; + + gint width = 0, height = 0; + GstStructure *pStruct = llgst_caps_get_structure ( pCaps, 0); + + if(!llgst_structure_get_int ( pStruct, "width", &width) ) + width = 0; + if(!llgst_structure_get_int ( pStruct, "height", &height) ) + height = 0; + + if( !mPixels || width == 0 || height == 0) + return true; + + GstBuffer *pBuffer = llgst_sample_get_buffer ( pSample ); + GstMapInfo map; + llgst_buffer_map ( pBuffer, &map, GST_MAP_READ); + + // Our render buffer is always 1kx1k + + U32 rowSkip = INTERNAL_TEXTURE_SIZE / mTextureHeight; + U32 colSkip = INTERNAL_TEXTURE_SIZE / mTextureWidth; + + for (int row = 0; row < mTextureHeight; ++row) + { + U8 const *pTexelIn = map.data + (row*rowSkip * width *3); +#ifndef FLIP_Y + U8 *pTexelOut = mPixels + (row * mTextureWidth * mDepth ); +#else + U8 *pTexelOut = mPixels + ((mTextureHeight-row-1) * mTextureWidth * mDepth ); +#endif + for( int col = 0; col < mTextureWidth; ++col ) + { + pTexelOut[ 0 ] = pTexelIn[0]; + pTexelOut[ 1 ] = pTexelIn[1]; + pTexelOut[ 2 ] = pTexelIn[2]; + pTexelOut += mDepth; + pTexelIn += colSkip*3; + } + } + + llgst_buffer_unmap( pBuffer, &map ); + setDirty(0,0,mTextureWidth,mTextureHeight); + + return true; +} + +void MediaPluginGStreamer10::mouseDown( int x, int y ) +{ + // do nothing +} + +void MediaPluginGStreamer10::mouseUp( int x, int y ) +{ + // do nothing +} + +void MediaPluginGStreamer10::mouseMove( int x, int y ) +{ + // do nothing +} + + +bool MediaPluginGStreamer10::pause() +{ + // todo: error-check this? + if (mDoneInit && mPlaybin) + { + llgst_element_set_state(mPlaybin, GST_STATE_PAUSED); + return true; + } + return false; +} + +bool MediaPluginGStreamer10::stop() +{ + // todo: error-check this? + if (mDoneInit && mPlaybin) + { + llgst_element_set_state(mPlaybin, GST_STATE_READY); + return true; + } + return false; +} + +bool MediaPluginGStreamer10::play(double rate) +{ + // NOTE: we don't actually support non-natural rate. + + // todo: error-check this? + if (mDoneInit && mPlaybin) + { + llgst_element_set_state(mPlaybin, GST_STATE_PLAYING); + return true; + } + return false; +} + +bool MediaPluginGStreamer10::setVolume( float volume ) +{ + // we try to only update volume as conservatively as + // possible, as many gst-plugins-base versions up to at least + // November 2008 have critical race-conditions in setting volume - sigh + if (mVolume == volume) + return true; // nothing to do, everything's fine + + mVolume = volume; + if (mDoneInit && mPlaybin) + { + llg_object_set(mPlaybin, "volume", mVolume, nullptr); + return true; + } + + return false; +} + +bool MediaPluginGStreamer10::seek(double time_sec) +{ + bool success = false; + if (mDoneInit && mPlaybin) + { + success = llgst_element_seek(mPlaybin, 1.0F, GST_FORMAT_TIME, + GstSeekFlags(GST_SEEK_FLAG_FLUSH | + GST_SEEK_FLAG_KEY_UNIT), + GST_SEEK_TYPE_SET, gint64(time_sec*GST_SECOND), + GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE); + } + return success; +} + +bool MediaPluginGStreamer10::getTimePos(double &sec_out) +{ + bool got_position = false; + if (mDoneInit && mPlaybin) + { + gint64 pos(0); + GstFormat timefmt = GST_FORMAT_TIME; + got_position = + llgst_element_query_position && + llgst_element_query_position(mPlaybin, + &timefmt, + &pos); + got_position = got_position + && (timefmt == GST_FORMAT_TIME); + // GStreamer may have other ideas, but we consider the current position + // undefined if not PLAYING or PAUSED + got_position = got_position && + (GST_STATE(mPlaybin) == GST_STATE_PLAYING || + GST_STATE(mPlaybin) == GST_STATE_PAUSED); + if (got_position && !GST_CLOCK_TIME_IS_VALID(pos)) + { + if (GST_STATE(mPlaybin) == GST_STATE_PLAYING) + { + // if we're playing then we treat an invalid clock time + // as 0, for complicated reasons (insert reason here) + pos = 0; + } + else + { + got_position = false; + } + + } + // If all the preconditions succeeded... we can trust the result. + if (got_position) + { + sec_out = double(pos) / double(GST_SECOND); // gst to sec + } + } + return got_position; +} + +bool MediaPluginGStreamer10::load() +{ + if (!mDoneInit) + return false; // error + + setStatus(STATUS_LOADING); + + mIsLooping = false; + mVolume = 0.1234567f; // minor hack to force an initial volume update + + // Create a pumpable main-loop for this media + mPump = llg_main_loop_new (nullptr, FALSE); + if (!mPump) + { + setStatus(STATUS_ERROR); + return false; // error + } + + // instantiate a playbin element to do the hard work + mPlaybin = llgst_element_factory_make ("playbin", ""); + if (!mPlaybin) + { + setStatus(STATUS_ERROR); + return false; // error + } + + // get playbin's bus + GstBus *bus = llgst_pipeline_get_bus (GST_PIPELINE (mPlaybin)); + if (!bus) + { + setStatus(STATUS_ERROR); + return false; // error + } + mBusWatchID = llgst_bus_add_watch (bus, + llmediaimplgstreamer_bus_callback, + this); + llgst_object_unref (bus); + + mAppSink = (GstAppSink*)(llgst_element_factory_make ("appsink", "")); + + GstCaps* pCaps = llgst_caps_new_simple( "video/x-raw", + "format", G_TYPE_STRING, "RGB", + "width", G_TYPE_INT, INTERNAL_TEXTURE_SIZE, + "height", G_TYPE_INT, INTERNAL_TEXTURE_SIZE, + nullptr ); + + llgst_app_sink_set_caps( mAppSink, pCaps ); + llgst_caps_unref( pCaps ); + + if (!mAppSink) + { + setStatus(STATUS_ERROR); + return false; + } + + llg_object_set(mPlaybin, "video-sink", mAppSink, nullptr); + + return true; +} + +bool MediaPluginGStreamer10::unload () +{ + if (!mDoneInit) + return false; // error + + // stop getting callbacks for this bus + llg_source_remove(mBusWatchID); + mBusWatchID = 0; + + if (mPlaybin) + { + llgst_element_set_state (mPlaybin, GST_STATE_NULL); + llgst_object_unref (GST_OBJECT (mPlaybin)); + mPlaybin = nullptr; + } + + if (mPump) + { + llg_main_loop_quit(mPump); + mPump = nullptr; + } + + mAppSink = nullptr; + + setStatus(STATUS_NONE); + + return true; +} + +void LogFunction(GstDebugCategory *category, GstDebugLevel level, const gchar *file, const gchar *function, gint line, GObject *object, GstDebugMessage *message, gpointer user_data ) +{ + std::cerr << file << ":" << line << "(" << function << "): " << llgst_debug_message_get( message ) << std::endl; +} + +//static +bool MediaPluginGStreamer10::startup() +{ + // first - check if GStreamer is explicitly disabled + if (nullptr != getenv("LL_DISABLE_GSTREAMER")) + return false; + + // only do global GStreamer initialization once. + if (!mDoneInit) + { + ll_init_apr(); + + // Get symbols! + std::vector< std::string > vctDSONames; + vctDSONames.push_back( "libgstreamer-1.0.so.0" ); + vctDSONames.push_back( "libgstapp-1.0.so.0" ); + vctDSONames.push_back( "libglib-2.0.so.0" ); + vctDSONames.push_back( "libgobject-2.0.so" ); + if( !gstSymbolGrabber.grabSymbols( vctDSONames ) ) + return false; + + if (llgst_segtrap_set_enabled) + { + llgst_segtrap_set_enabled(FALSE); + } + + // Gstreamer tries a fork during init, waitpid-ing on it, + // which conflicts with any installed SIGCHLD handler... + struct sigaction tmpact, oldact; + if (llgst_registry_fork_set_enabled ) { + // if we can disable SIGCHLD-using forking behaviour, + // do it. + llgst_registry_fork_set_enabled(false); + } + else { + // else temporarily install default SIGCHLD handler + // while GStreamer initialises + tmpact.sa_handler = SIG_DFL; + sigemptyset( &tmpact.sa_mask ); + tmpact.sa_flags = SA_SIGINFO; + sigaction(SIGCHLD, &tmpact, &oldact); + } + // Protect against GStreamer resetting the locale, yuck. + static std::string saved_locale; + saved_locale = setlocale(LC_ALL, nullptr); + + llgst_debug_set_default_threshold( GST_LEVEL_WARNING ); + llgst_debug_add_log_function( LogFunction, nullptr, nullptr ); + llgst_debug_set_active( false ); + + // finally, try to initialize GStreamer! + GError *err = nullptr; + gboolean init_gst_success = llgst_init_check(nullptr, nullptr, &err); + + // restore old locale + setlocale(LC_ALL, saved_locale.c_str() ); + + // restore old SIGCHLD handler + if (!llgst_registry_fork_set_enabled) + sigaction(SIGCHLD, &oldact, nullptr); + + if (!init_gst_success) // fail + { + if (err) + llg_error_free(err); + return false; + } + + mDoneInit = true; + } + + return true; +} + +//static +bool MediaPluginGStreamer10::closedown() +{ + if (!mDoneInit) + return false; // error + + gstSymbolGrabber.ungrabSymbols(); + mDoneInit = false; + + return true; +} + +MediaPluginGStreamer10::~MediaPluginGStreamer10() +{ + closedown(); +} + +std::string MediaPluginGStreamer10::getVersion() +{ + std::string plugin_version = "GStreamer10 media plugin, GStreamer version "; + if (mDoneInit && + llgst_version) + { + guint major, minor, micro, nano; + llgst_version(&major, &minor, µ, &nano); + plugin_version += llformat("%u.%u.%u.%u (runtime), %u.%u.%u.%u (headers)", (unsigned int)major, (unsigned int)minor, + (unsigned int)micro, (unsigned int)nano, (unsigned int)GST_VERSION_MAJOR, (unsigned int)GST_VERSION_MINOR, + (unsigned int)GST_VERSION_MICRO, (unsigned int)GST_VERSION_NANO); + } + else + { + plugin_version += "(unknown)"; + } + return plugin_version; +} + +void MediaPluginGStreamer10::receiveMessage(const char *message_string) +{ + LLPluginMessage message_in; + + if(message_in.parse(message_string) >= 0) + { + std::string message_class = message_in.getClass(); + std::string message_name = message_in.getName(); + + if(message_class == LLPLUGIN_MESSAGE_CLASS_BASE) + { + if(message_name == "init") + { + LLPluginMessage message("base", "init_response"); + LLSD versions = LLSD::emptyMap(); + versions[LLPLUGIN_MESSAGE_CLASS_BASE] = LLPLUGIN_MESSAGE_CLASS_BASE_VERSION; + versions[LLPLUGIN_MESSAGE_CLASS_MEDIA] = LLPLUGIN_MESSAGE_CLASS_MEDIA_VERSION; + versions[LLPLUGIN_MESSAGE_CLASS_MEDIA_TIME] = LLPLUGIN_MESSAGE_CLASS_MEDIA_TIME_VERSION; + message.setValueLLSD("versions", versions); + + load(); + + message.setValue("plugin_version", getVersion()); + sendMessage(message); + } + else if(message_name == "idle") + { + // no response is necessary here. + double time = message_in.getValueReal("time"); + + // Convert time to milliseconds for update() + update((int)(time * 1000.0f)); + } + else if(message_name == "cleanup") + { + unload(); + closedown(); + } + else if(message_name == "shm_added") + { + SharedSegmentInfo info; + info.mAddress = message_in.getValuePointer("address"); + info.mSize = (size_t)message_in.getValueS32("size"); + std::string name = message_in.getValue("name"); + + mSharedSegments.insert(SharedSegmentMap::value_type(name, info)); + } + else if(message_name == "shm_remove") + { + std::string name = message_in.getValue("name"); + + SharedSegmentMap::iterator iter = mSharedSegments.find(name); + if(iter != mSharedSegments.end()) + { + if(mPixels == iter->second.mAddress) + { + // This is the currently active pixel buffer. Make sure we stop drawing to it. + mPixels = nullptr; + mTextureSegmentName.clear(); + } + mSharedSegments.erase(iter); + } + + // Send the response so it can be cleaned up. + LLPluginMessage message("base", "shm_remove_response"); + message.setValue("name", name); + sendMessage(message); + } + } + else if(message_class == LLPLUGIN_MESSAGE_CLASS_MEDIA) + { + if(message_name == "init") + { + // Plugin gets to decide the texture parameters to use. + LLPluginMessage message(LLPLUGIN_MESSAGE_CLASS_MEDIA, "texture_params"); + // lame to have to decide this now, it depends on the movie. Oh well. + mDepth = 4; + + mTextureWidth = 1; + mTextureHeight = 1; + + message.setValueU32("format", GL_RGBA); + message.setValueU32("type", GL_UNSIGNED_INT_8_8_8_8_REV); + + message.setValueS32("depth", mDepth); + message.setValueS32("default_width", INTERNAL_TEXTURE_SIZE ); + message.setValueS32("default_height", INTERNAL_TEXTURE_SIZE ); + message.setValueU32("internalformat", GL_RGBA8); + message.setValueBoolean("coords_opengl", true); // true == use OpenGL-style coordinates, false == (0,0) is upper left. + message.setValueBoolean("allow_downsample", true); // we respond with grace and performance if asked to downscale + sendMessage(message); + } + else if(message_name == "size_change") + { + std::string name = message_in.getValue("name"); + S32 width = message_in.getValueS32("width"); + S32 height = message_in.getValueS32("height"); + S32 texture_width = message_in.getValueS32("texture_width"); + S32 texture_height = message_in.getValueS32("texture_height"); + + LLPluginMessage message(LLPLUGIN_MESSAGE_CLASS_MEDIA, "size_change_response"); + message.setValue("name", name); + message.setValueS32("width", width); + message.setValueS32("height", height); + message.setValueS32("texture_width", texture_width); + message.setValueS32("texture_height", texture_height); + sendMessage(message); + + if(!name.empty()) + { + // Find the shared memory region with this name + SharedSegmentMap::iterator iter = mSharedSegments.find(name); + if(iter != mSharedSegments.end()) + { + mPixels = (unsigned char*)iter->second.mAddress; + mTextureSegmentName = name; + + mTextureWidth = texture_width; + mTextureHeight = texture_height; + memset( mPixels, 0, mTextureWidth*mTextureHeight*mDepth ); + } + + LLPluginMessage message(LLPLUGIN_MESSAGE_CLASS_MEDIA, "size_change_request"); + message.setValue("name", mTextureSegmentName); + message.setValueS32("width", INTERNAL_TEXTURE_SIZE ); + message.setValueS32("height", INTERNAL_TEXTURE_SIZE ); + sendMessage(message); + + } + } + else if(message_name == "load_uri") + { + std::string uri = message_in.getValue("uri"); + navigateTo( uri ); + sendStatus(); + } + else if(message_name == "mouse_event") + { + std::string event = message_in.getValue("event"); + S32 x = message_in.getValueS32("x"); + S32 y = message_in.getValueS32("y"); + + if(event == "down") + { + mouseDown(x, y); + } + else if(event == "up") + { + mouseUp(x, y); + } + else if(event == "move") + { + mouseMove(x, y); + }; + }; + } + else if(message_class == LLPLUGIN_MESSAGE_CLASS_MEDIA_TIME) + { + if(message_name == "stop") + { + stop(); + } + else if(message_name == "start") + { + double rate = 0.0; + if(message_in.hasValue("rate")) + { + rate = message_in.getValueReal("rate"); + } + // NOTE: we don't actually support rate. + play(rate); + } + else if(message_name == "pause") + { + pause(); + } + else if(message_name == "seek") + { + double time = message_in.getValueReal("time"); + // defer the actual seek in case we haven't + // really truly started yet in which case there + // is nothing to seek upon + mSeekWanted = true; + mSeekDestination = time; + } + else if(message_name == "set_loop") + { + bool loop = message_in.getValueBoolean("loop"); + mIsLooping = loop; + } + else if(message_name == "set_volume") + { + double volume = message_in.getValueReal("volume"); + setVolume(volume); + } + } + } +} + +int init_media_plugin(LLPluginInstance::sendMessageFunction host_send_func, void *host_user_data, LLPluginInstance::sendMessageFunction *plugin_send_func, void **plugin_user_data) +{ + if( MediaPluginGStreamer10::startup() ) + { + MediaPluginGStreamer10 *self = new MediaPluginGStreamer10(host_send_func, host_user_data); + *plugin_send_func = MediaPluginGStreamer10::staticReceiveMessage; + *plugin_user_data = (void*)self; + + return 0; // okay + } + else + { + return -1; // failed to init + } +} |