diff options
Diffstat (limited to 'indra/media_plugins/gstreamer010/media_plugin_gstreamer010.cpp')
| -rw-r--r-- | indra/media_plugins/gstreamer010/media_plugin_gstreamer010.cpp | 1204 |
1 files changed, 1204 insertions, 0 deletions
diff --git a/indra/media_plugins/gstreamer010/media_plugin_gstreamer010.cpp b/indra/media_plugins/gstreamer010/media_plugin_gstreamer010.cpp new file mode 100644 index 0000000000..647db7a5bf --- /dev/null +++ b/indra/media_plugins/gstreamer010/media_plugin_gstreamer010.cpp @@ -0,0 +1,1204 @@ +/** + * @file media_plugin_gstreamer010.cpp + * @brief GStreamer-0.10 plugin for LLMedia API plugin system + * + * $LicenseInfo:firstyear=2007&license=viewergpl$ + * + * Copyright (c) 2007, Linden Research, Inc. + * + * Second Life Viewer Source Code + * The source code in this file ("Source Code") is provided by Linden Lab + * to you under the terms of the GNU General Public License, version 2.0 + * ("GPL"), unless you have obtained a separate licensing agreement + * ("Other License"), formally executed by you and Linden Lab. Terms of + * the GPL can be found in doc/GPL-license.txt in this distribution, or + * online at http://secondlife.com/developers/opensource/gplv2 + * + * There are special exceptions to the terms and conditions of the GPL as + * it is applied to this Source Code. View the full text of the exception + * in the file doc/FLOSS-exception.txt in this software distribution, or + * online at http://secondlife.com/developers/opensource/flossexception + * + * By copying, modifying or distributing this software, you acknowledge + * that you have read and understood your obligations described above, + * and agree to abide by those obligations. + * + * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO + * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, + * COMPLETENESS OR PERFORMANCE. + * $/LicenseInfo$ + */ + +#include "linden_common.h" + +#include "llgl.h" + +#include "llplugininstance.h" +#include "llpluginmessage.h" +#include "llpluginmessageclasses.h" +#include "media_plugin_base.h" + +#if LL_GSTREAMER010_ENABLED + +extern "C" { +#include <gst/gst.h> +} + +#include "llmediaimplgstreamer.h" +#include "llmediaimplgstreamertriviallogging.h" + +#include "llmediaimplgstreamervidplug.h" + +#include "llmediaimplgstreamer_syms.h" + +////////////////////////////////////////////////////////////////////////////// +// +class MediaPluginGStreamer010 : public MediaPluginBase +{ +public: + MediaPluginGStreamer010(LLPluginInstance::sendMessageFunction host_send_func, void *host_user_data); + ~MediaPluginGStreamer010(); + + /* 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); + + static const double MIN_LOOP_SEC = 1.0F; + + 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 ); + + bool sizeChanged(); + + static bool mDoneInit; + + guint mBusWatchID; + + float mVolume; + + int mDepth; + + // media natural size + int mNaturalWidth; + int mNaturalHeight; + int mNaturalRowbytes; + // previous media natural size so we can detect changes + int mPreviousNaturalWidth; + int mPreviousNaturalHeight; + // desired render size from host + int mWidth; + int mHeight; + // padded texture size we need to write into + int mTextureWidth; + int mTextureHeight; + + int mTextureFormatPrimary; + int mTextureFormatType; + + bool mSeekWanted; + double mSeekDestination; + + // Very GStreamer-specific + GMainLoop *mPump; // event pump for this media + GstElement *mPlaybin; + GstSLVideo *mVideoSink; +}; + +//static +bool MediaPluginGStreamer010::mDoneInit = false; + +MediaPluginGStreamer010::MediaPluginGStreamer010( + LLPluginInstance::sendMessageFunction host_send_func, + void *host_user_data ) : + MediaPluginBase(host_send_func, host_user_data), + mBusWatchID ( 0 ), + mNaturalRowbytes ( 4 ), + mTextureFormatPrimary ( GL_RGBA ), + mTextureFormatType ( GL_UNSIGNED_INT_8_8_8_8_REV ), + mSeekWanted(false), + mSeekDestination(0.0), + mPump ( NULL ), + mPlaybin ( NULL ), + mVideoSink ( NULL ), + mCommand ( COMMAND_NONE ) +{ + std::ostringstream str; + INFOMSG("MediaPluginGStreamer010 constructor - my PID=%u", U32(getpid())); +} + +/////////////////////////////////////////////////////////////////////////////// +// +//#define LL_GST_REPORT_STATE_CHANGES +#ifdef LL_GST_REPORT_STATE_CHANGES +static char* get_gst_state_name(GstState state) +{ + switch (state) { + case GST_STATE_VOID_PENDING: return "VOID_PENDING"; + case GST_STATE_NULL: return "NULL"; + case GST_STATE_READY: return "READY"; + case GST_STATE_PAUSED: return "PAUSED"; + case GST_STATE_PLAYING: return "PLAYING"; + } + return "(unknown)"; +} +#endif // LL_GST_REPORT_STATE_CHANGES + +gboolean +MediaPluginGStreamer010::processGSTEvents(GstBus *bus, + GstMessage *message) +{ + if (!message) + return TRUE; // shield against GStreamer bug + + if (GST_MESSAGE_TYPE(message) != GST_MESSAGE_STATE_CHANGED && + GST_MESSAGE_TYPE(message) != GST_MESSAGE_BUFFERING) + { + DEBUGMSG("Got GST message type: %s", + LLGST_MESSAGE_TYPE_NAME (message)); + } + else + { + DEBUGMSG("Got GST message type: %s", + LLGST_MESSAGE_TYPE_NAME (message)); + } + + 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); + DEBUGMSG("GST buffering: %d%%", 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); +#ifdef LL_GST_REPORT_STATE_CHANGES + // not generally very useful, and rather spammy. + DEBUGMSG("state change (old,<new>,pending): %s,<%s>,%s", + get_gst_state_name(old_state), + get_gst_state_name(new_state), + get_gst_state_name(pending_state)); +#endif // LL_GST_REPORT_STATE_CHANGES + + 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 = NULL; + gchar *debug = NULL; + + llgst_message_parse_error (message, &err, &debug); + WARNMSG("GST error: %s", err?err->message:"(unknown)"); + if (err) + g_error_free (err); + g_free (debug); + + mCommand = COMMAND_STOP; + + setStatus(STATUS_ERROR); + + break; + } + case GST_MESSAGE_INFO: { + if (llgst_message_parse_info) + { + GError *err = NULL; + gchar *debug = NULL; + + llgst_message_parse_info (message, &err, &debug); + INFOMSG("GST info: %s", err?err->message:"(unknown)"); + if (err) + g_error_free (err); + g_free (debug); + } + break; + } + case GST_MESSAGE_WARNING: { + GError *err = NULL; + gchar *debug = NULL; + + llgst_message_parse_warning (message, &err, &debug); + WARNMSG("GST warning: %s", err?err->message:"(unknown)"); + if (err) + g_error_free (err); + g_free (debug); + + break; + } + case GST_MESSAGE_EOS: + /* end-of-stream */ + DEBUGMSG("GST end-of-stream."); + if (mIsLooping) + { + DEBUGMSG("looping media..."); + 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 + DEBUGMSG("really short movie (%0.3fsec) - not gonna loop this, pausing instead.", eos_pos_sec); + // inject a COMMAND_PAUSE + mCommand = COMMAND_PAUSE; + } + else + { +#undef LLGST_LOOP_BY_SEEKING +// loop with a stop-start instead of a seek, because it actually seems rather +// faster than seeking on remote streams. +#ifdef LLGST_LOOP_BY_SEEKING + // first, try looping by an explicit rewind + bool seeksuccess = seek(0.0); + if (seeksuccess) + { + play(1.0); + } + else +#endif // LLGST_LOOP_BY_SEEKING + { // use clumsy stop-start to loop + DEBUGMSG("didn't loop by rewinding - stopping and starting instead..."); + 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) +{ + MediaPluginGStreamer010 *impl = (MediaPluginGStreamer010*)data; + return impl->processGSTEvents(bus, message); +} +} // extern "C" + + + +bool +MediaPluginGStreamer010::navigateTo ( const std::string urlIn ) +{ + if (!mDoneInit) + return false; // error + + setStatus(STATUS_LOADING); + + DEBUGMSG("Setting media URI: %s", urlIn.c_str()); + + mSeekWanted = false; + + if (NULL == mPump || + NULL == mPlaybin) + { + setStatus(STATUS_ERROR); + return false; // error + } + + // set URI + g_object_set (G_OBJECT (mPlaybin), "uri", urlIn.c_str(), NULL); + //g_object_set (G_OBJECT (mPlaybin), "uri", "file:///tmp/movie", NULL); + + // navigateTo implicitly plays, too. + play(1.0); + + return true; +} + + +bool +MediaPluginGStreamer010::update(int milliseconds) +{ + if (!mDoneInit) + return false; // error + + DEBUGMSG("updating media..."); + + // sanity check + if (NULL == mPump || + NULL == mPlaybin) + { + DEBUGMSG("dead media..."); + 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 (g_main_context_pending(g_main_loop_get_context(mPump))) + { + g_main_context_iteration(g_main_loop_get_context(mPump), FALSE); + } + + // check for availability of a new frame + + if (mVideoSink) + { + GST_OBJECT_LOCK(mVideoSink); + if (mVideoSink->retained_frame_ready) + { + DEBUGMSG("NEW FRAME READY"); + + if (mVideoSink->retained_frame_width != mNaturalWidth || + mVideoSink->retained_frame_height != mNaturalHeight) + // *TODO: also check for change in format + { + // just resize container, don't consume frame + int neww = mVideoSink->retained_frame_width; + int newh = mVideoSink->retained_frame_height; + + int newd = 4; + mTextureFormatPrimary = GL_RGBA; + mTextureFormatType = GL_UNSIGNED_INT_8_8_8_8_REV; + + /* + int newd = SLVPixelFormatBytes[mVideoSink->retained_frame_format]; + if (SLV_PF_BGRX == mVideoSink->retained_frame_format) + { + mTextureFormatPrimary = GL_BGRA; + mTextureFormatType = GL_UNSIGNED_INT_8_8_8_8_REV; + } + else + { + mTextureFormatPrimary = GL_RGBA; + mTextureFormatType = GL_UNSIGNED_INT_8_8_8_8_REV; + } + */ + + GST_OBJECT_UNLOCK(mVideoSink); + + mNaturalRowbytes = neww * newd; + DEBUGMSG("video container resized to %dx%d", + neww, newh); + + mDepth = newd; + mNaturalWidth = neww; + mNaturalHeight = newh; + sizeChanged(); + return true; + } + + if (mPixels && + mNaturalHeight <= mHeight && + mNaturalWidth <= mWidth && + !mTextureSegmentName.empty()) + { + + // we're gonna totally consume this frame - reset 'ready' flag + mVideoSink->retained_frame_ready = FALSE; + int destination_rowbytes = mWidth * mDepth; + for (int row=0; row<mNaturalHeight; ++row) + { + memcpy(&mPixels + [destination_rowbytes * row], + &mVideoSink->retained_frame_data + [mNaturalRowbytes * row], + mNaturalRowbytes); + } + + GST_OBJECT_UNLOCK(mVideoSink); + DEBUGMSG("NEW FRAME REALLY TRULY CONSUMED, TELLING HOST"); + + setDirty(0,0,mNaturalWidth,mNaturalHeight); + } + else + { + // new frame ready, but we're not ready to + // consume it. + + GST_OBJECT_UNLOCK(mVideoSink); + + DEBUGMSG("NEW FRAME not consumed, still waiting for a shm segment and/or shm resize"); + } + + return true; + } + else + { + // nothing to do yet. + GST_OBJECT_UNLOCK(mVideoSink); + return true; + } + } + + return true; +} + + +void +MediaPluginGStreamer010::mouseDown( int x, int y ) +{ + // do nothing +} + +void +MediaPluginGStreamer010::mouseUp( int x, int y ) +{ + // do nothing +} + +void +MediaPluginGStreamer010::mouseMove( int x, int y ) +{ + // do nothing +} + + +bool +MediaPluginGStreamer010::pause() +{ + DEBUGMSG("pausing media..."); + // todo: error-check this? + llgst_element_set_state(mPlaybin, GST_STATE_PAUSED); + return true; +} + +bool +MediaPluginGStreamer010::stop() +{ + DEBUGMSG("stopping media..."); + // todo: error-check this? + llgst_element_set_state(mPlaybin, GST_STATE_READY); + return true; +} + +bool +MediaPluginGStreamer010::play(double rate) +{ + // NOTE: we don't actually support non-natural rate. + + DEBUGMSG("playing media... rate=%f", rate); + // todo: error-check this? + llgst_element_set_state(mPlaybin, GST_STATE_PLAYING); + return true; +} + +bool +MediaPluginGStreamer010::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) + { + g_object_set(mPlaybin, "volume", mVolume, NULL); + return true; + } + + return false; +} + +bool +MediaPluginGStreamer010::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); + } + DEBUGMSG("MEDIA SEEK REQUEST to %fsec result was %d", + float(time_sec), int(success)); + return success; +} + +bool +MediaPluginGStreamer010::getTimePos(double &sec_out) +{ + bool got_position = false; + if (mPlaybin) + { + gint64 pos; + 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 +MediaPluginGStreamer010::load() +{ + if (!mDoneInit) + return false; // error + + setStatus(STATUS_LOADING); + + DEBUGMSG("setting up media..."); + + mIsLooping = false; + mVolume = 0.1234567; // minor hack to force an initial volume update + + // Create a pumpable main-loop for this media + mPump = g_main_loop_new (NULL, FALSE); + if (!mPump) + { + setStatus(STATUS_ERROR); + return false; // error + } + + // instantiate a playbin element to do the hard work + mPlaybin = llgst_element_factory_make ("playbin", "play"); + 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); + + if (NULL == getenv("LL_GSTREAMER_EXTERNAL")) { + // instantiate a custom video sink + mVideoSink = + GST_SLVIDEO(llgst_element_factory_make ("private-slvideo", "slvideo")); + if (!mVideoSink) + { + WARNMSG("Could not instantiate private-slvideo element."); + // todo: cleanup. + setStatus(STATUS_ERROR); + return false; // error + } + + // connect the pieces + g_object_set(mPlaybin, "video-sink", mVideoSink, NULL); + } + + return true; +} + +bool +MediaPluginGStreamer010::unload () +{ + if (!mDoneInit) + return false; // error + + DEBUGMSG("unloading media..."); + + // stop getting callbacks for this bus + g_source_remove(mBusWatchID); + mBusWatchID = 0; + + if (mPlaybin) + { + llgst_element_set_state (mPlaybin, GST_STATE_NULL); + llgst_object_unref (GST_OBJECT (mPlaybin)); + mPlaybin = NULL; + } + + if (mPump) + { + g_main_loop_quit(mPump); + mPump = NULL; + } + + mVideoSink = NULL; + + setStatus(STATUS_NONE); + + return true; +} + + +//static +bool +MediaPluginGStreamer010::startup() +{ + // first - check if GStreamer is explicitly disabled + if (NULL != getenv("LL_DISABLE_GSTREAMER")) + return false; + + // only do global GStreamer initialization once. + if (!mDoneInit) + { + g_thread_init(NULL); + + // Init the glib type system - we need it. + g_type_init(); + + // Get symbols! +#if LL_DARWIN + if (! grab_gst_syms("libgstreamer-0.10.dylib", + "libgstvideo-0.10.dylib") ) +#elseif LL_WINDOWS + if (! grab_gst_syms("libgstreamer-0.10.dll", + "libgstvideo-0.10.dll") ) +#else // linux or other ELFy unixoid + if (! grab_gst_syms("libgstreamer-0.10.so.0", + "libgstvideo-0.10.so.0") ) +#endif + { + WARNMSG("Couldn't find suitable GStreamer 0.10 support on this system - video playback disabled."); + return false; + } + + if (llgst_segtrap_set_enabled) + { + llgst_segtrap_set_enabled(FALSE); + } + else + { + WARNMSG("gst_segtrap_set_enabled() is not available; plugin crashes won't be caught."); + } + +#if LL_LINUX + // 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); + } +#endif // LL_LINUX + + // Protect against GStreamer resetting the locale, yuck. + static std::string saved_locale; + saved_locale = setlocale(LC_ALL, NULL); + + // finally, try to initialize GStreamer! + GError *err = NULL; + gboolean init_gst_success = llgst_init_check(NULL, NULL, &err); + + // restore old locale + setlocale(LC_ALL, saved_locale.c_str() ); + +#if LL_LINUX + // restore old SIGCHLD handler + if (!llgst_registry_fork_set_enabled) + sigaction(SIGCHLD, &oldact, NULL); +#endif // LL_LINUX + + if (!init_gst_success) // fail + { + if (err) + { + WARNMSG("GST init failed: %s", err->message); + g_error_free(err); + } + else + { + WARNMSG("GST init failed for unspecified reason."); + } + return false; + } + + // Init our custom plugins - only really need do this once. + gst_slvideo_init_class(); + + mDoneInit = true; + } + + return true; +} + + +bool +MediaPluginGStreamer010::sizeChanged() +{ + // the shared writing space has possibly changed size/location/whatever + + // Check to see whether the movie's natural size has updated + if (mNaturalWidth != mPreviousNaturalWidth || + mNaturalHeight != mPreviousNaturalHeight) + { + mPreviousNaturalWidth = mNaturalWidth; + mPreviousNaturalHeight = mNaturalHeight; + + LLPluginMessage message(LLPLUGIN_MESSAGE_CLASS_MEDIA, "size_change_request"); + message.setValue("name", mTextureSegmentName); + message.setValueS32("width", mNaturalWidth); + message.setValueS32("height", mNaturalHeight); + DEBUGMSG("<--- Sending size change request to application with name: '%s' - size is %d x %d", mTextureSegmentName.c_str(), mNaturalWidth, mNaturalHeight); + sendMessage(message); + } + + return true; +} + + + +//static +bool +MediaPluginGStreamer010::closedown() +{ + if (!mDoneInit) + return false; // error + + ungrab_gst_syms(); + + mDoneInit = false; + + return true; +} + +MediaPluginGStreamer010::~MediaPluginGStreamer010() +{ + DEBUGMSG("MediaPluginGStreamer010 destructor"); + + closedown(); + + DEBUGMSG("GStreamer010 closing down"); +} + + +std::string +MediaPluginGStreamer010::getVersion() +{ + std::string plugin_version = "GStreamer010 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 MediaPluginGStreamer010::receiveMessage(const char *message_string) +{ + //std::cerr << "MediaPluginGStreamer010::receiveMessage: received message: \"" << message_string << "\"" << std::endl; + + 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); + + if ( load() ) + { + DEBUGMSG("GStreamer010 media instance set up"); + } + else + { + WARNMSG("GStreamer010 media instance failed to set up"); + } + + message.setValue("plugin_version", getVersion()); + sendMessage(message); + + // Plugin gets to decide the texture parameters to use. + message.setMessage(LLPLUGIN_MESSAGE_CLASS_MEDIA, "texture_params"); + // lame to have to decide this now, it depends on the movie. Oh well. + mDepth = 4; + + mNaturalWidth = 1; + mNaturalHeight = 1; + mPreviousNaturalWidth = 1; + mPreviousNaturalHeight = 1; + mWidth = 1; + mHeight = 1; + 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", mWidth); + message.setValueS32("default_height", mHeight); + 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 == "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; + U64 address_lo = message_in.getValueU32("address"); + U64 address_hi = message_in.hasValue("address_1") ? message_in.getValueU32("address_1") : 0; + info.mAddress = (void*)((address_lo) | + (address_hi * (U64(1)<<31))); + info.mSize = (size_t)message_in.getValueS32("size"); + std::string name = message_in.getValue("name"); + + std::ostringstream str; + INFOMSG("MediaPluginGStreamer010::receiveMessage: shared memory added, name: %s, size: %d, address: %p", name.c_str(), int(info.mSize), info.mAddress); + + mSharedSegments.insert(SharedSegmentMap::value_type(name, info)); + + } + else if(message_name == "shm_remove") + { + std::string name = message_in.getValue("name"); + + DEBUGMSG("MediaPluginGStreamer010::receiveMessage: shared memory remove, name = %s", name.c_str()); + + 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 = NULL; + mTextureSegmentName.clear(); + + // Make sure the movie decoder is no longer pointed at the shared segment. + sizeChanged(); + } + mSharedSegments.erase(iter); + } + else + { + WARNMSG("MediaPluginGStreamer010::receiveMessage: unknown shared memory region!"); + } + + // Send the response so it can be cleaned up. + LLPluginMessage message("base", "shm_remove_response"); + message.setValue("name", name); + sendMessage(message); + } + else + { + std::ostringstream str; + INFOMSG("MediaPluginGStreamer010::receiveMessage: unknown base message: %s", message_name.c_str()); + } + } + else if(message_class == LLPLUGIN_MESSAGE_CLASS_MEDIA) + { + 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"); + + std::ostringstream str; + INFOMSG("---->Got size change instruction from application with shm name: %s - size is %d x %d", name.c_str(), width, 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()) + { + INFOMSG("*** Got size change with matching shm, new size is %d x %d", width, height); + INFOMSG("*** Got size change with matching shm, texture size size is %d x %d", texture_width, texture_height); + + mPixels = (unsigned char*)iter->second.mAddress; + mTextureSegmentName = name; + mWidth = width; + mHeight = height; + + if (texture_width > 1 || + texture_height > 1) // not a dummy size from the app, a real explicit forced size + { + INFOMSG("**** = REAL RESIZE REQUEST FROM APP"); + + GST_OBJECT_LOCK(mVideoSink); + mVideoSink->resize_forced = true; + mVideoSink->resize_try_width = texture_width; + mVideoSink->resize_try_height = texture_height; + GST_OBJECT_UNLOCK(mVideoSink); + } + + mTextureWidth = texture_width; + mTextureHeight = texture_height; + } + } + } + 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); + } + } + else + { + INFOMSG("MediaPluginGStreamer010::receiveMessage: unknown message class: %s", message_class.c_str()); + } + } +} + +int init_media_plugin(LLPluginInstance::sendMessageFunction host_send_func, void *host_user_data, LLPluginInstance::sendMessageFunction *plugin_send_func, void **plugin_user_data) +{ + if (MediaPluginGStreamer010::startup()) + { + MediaPluginGStreamer010 *self = new MediaPluginGStreamer010(host_send_func, host_user_data); + *plugin_send_func = MediaPluginGStreamer010::staticReceiveMessage; + *plugin_user_data = (void*)self; + + return 0; // okay + } + else + { + return -1; // failed to init + } +} + +#else // LL_GSTREAMER010_ENABLED + +// Stubbed-out class with constructor/destructor (necessary or windows linker +// will just think its dead code and optimize it all out) +class MediaPluginGStreamer010 : public MediaPluginBase +{ +public: + MediaPluginGStreamer010(LLPluginInstance::sendMessageFunction host_send_func, void *host_user_data); + ~MediaPluginGStreamer010(); + /* virtual */ void receiveMessage(const char *message_string); +}; + +MediaPluginGStreamer010::MediaPluginGStreamer010( + LLPluginInstance::sendMessageFunction host_send_func, + void *host_user_data ) : + MediaPluginBase(host_send_func, host_user_data) +{ + // no-op +} + +MediaPluginGStreamer010::~MediaPluginGStreamer010() +{ + // no-op +} + +void MediaPluginGStreamer010::receiveMessage(const char *message_string) +{ + // no-op +} + +// We're building without GStreamer enabled. Just refuse to initialize. +int init_media_plugin(LLPluginInstance::sendMessageFunction host_send_func, void *host_user_data, LLPluginInstance::sendMessageFunction *plugin_send_func, void **plugin_user_data) +{ + return -1; +} + +#endif // LL_GSTREAMER010_ENABLED |