Exemplo n.º 1
0
        public void Init(VirtualFileStream stream, VideoDriver videoDriver, AudioDriver audioDriver,
                         bool sound3D)
        {
            this.stream      = stream;
            this.audioDriver = audioDriver;
            this.videoDriver = videoDriver;
            this.sound3D     = sound3D;

            if (videoDriver != null)
            {
                videoDriver.oggFile = this;
            }
            if (audioDriver != null)
            {
                audioDriver.oggFile = this;
            }

            oggSyncState = new ogg.SyncState();
            oggPage      = new ogg.Page();

            ParsePrimaryHeaders();
            ParseSecondaryHeaders();

            if (this.audioDriver != null)
            {
                this.audioDriver.InitDSP();
            }
            if (this.videoDriver != null)
            {
                this.videoDriver.InitTheora();
            }

            //Update first frame
            Update(0);
        }
Exemplo n.º 2
0
        public void Dispose()
        {
            try
            {
                if (criticalSection != null)
                {
                    criticalSection.Enter();
                }

                Pause = true;

                if (videoDriver != null)
                {
                    videoDriver.Dispose();
                    videoDriver = null;
                }

                if (audioDriver != null)
                {
                    audioDriver.Dispose();
                    audioDriver = null;
                }

                if (oggSyncState != null)
                {
                    oggSyncState.Dispose();
                    oggSyncState = null;
                }

                if (oggPage != null)
                {
                    oggPage.Dispose();
                    oggPage = null;
                }

                if (stream != null)
                {
                    stream.Dispose();
                    stream = null;
                }
            }
            catch (Exception ex)
            {
                Log.Error("OggFile: Exception: " + ex.ToString());
            }
            finally
            {
                if (criticalSection != null)
                {
                    criticalSection.Leave();
                }
            }

            if (criticalSection != null)
            {
                criticalSection.Dispose();
                criticalSection = null;
            }

            GC.SuppressFinalize(this);
        }
Exemplo n.º 3
0
        /// <summary>
        /// internal method for parsing the main stream headers
        /// </summary>
        void ParsePrimaryHeaders()
        {
            ogg.Packet tempOggPacket  = new ogg.Packet();
            bool       notDone        = true;
            int        vorbis_streams = 0;
            int        theora_streams = 0;

            while (notDone)
            {
                if (BufferData() == 0)
                {
                    tempOggPacket.Dispose();
                    throw new Exception("Invalid ogg file");
                }

                //Check for page data
                while (oggSyncState.pageout(oggPage) > 0)
                {
                    //is this an initial header? If not, stop
                    if (oggPage.bos() == 0)
                    {
                        //This is done blindly, because stream only accept them selfs
                        if (videoDriver != null && theora_streams > 0)
                        {
                            videoDriver.PageIn(oggPage);
                        }
                        if (audioDriver != null && vorbis_streams > 0)
                        {
                            audioDriver.PageIn(oggPage);
                        }
                        notDone = false;
                        break;
                    }

                    ogg.StreamState oggStateTest = new ogg.StreamState(oggPage.serialno());
                    //oggStateTest.init( oggPage.serialno() );
                    oggStateTest.pagein(oggPage);
                    oggStateTest.packetout(tempOggPacket);

                    //identify the codec
                    if (videoDriver != null && videoDriver.DecodePrimaryHeader(tempOggPacket, oggStateTest))
                    {
                        theora_streams = 1;
                    }
                    else if (audioDriver != null && audioDriver.DecodePrimaryHeader(tempOggPacket, oggStateTest))
                    {
                        vorbis_streams = 1;
                    }
                    else
                    {
                        oggStateTest.Dispose();
                    }
                }         //end while ogg_sync_pageout
            }             //end while notdone

            //if pri headers not found, then remove driver
            if (theora_streams == 0 && videoDriver != null)
            {
                videoDriver.Dispose();
                videoDriver = null;
            }
            if (vorbis_streams == 0 && audioDriver != null)
            {
                audioDriver.Dispose();
                audioDriver = null;
            }

            tempOggPacket.Dispose();
        }