Beispiel #1
0
        public void Write(MetaData meta)
        {
            MetaCue[] metaCue = meta.MetaCue;
            FlvReader reader  = new FlvReader(this._file, false);
            FlvWriter writer  = new FlvWriter(this._output, false);
            ITag      tag     = null;

            if (reader.HasMoreTags())
            {
                tag = reader.ReadTag();
                if ((tag.DataType == IOConstants.TYPE_METADATA) && !reader.HasMoreTags())
                {
                    throw new IOException("File we're writing is metadata only?");
                }
            }
            meta.Duration     = ((double)reader.Duration) / 1000.0;
            meta.VideoCodecId = reader.VideoCodecId;
            meta.AudioCodecId = reader.AudioCodecId;
            ITag tag2 = this.InjectMetaData(meta, tag);

            tag2.PreviousTagSize = 0;
            tag.PreviousTagSize  = tag2.BodySize;
            writer.WriteHeader();
            writer.WriteTag(tag2);
            writer.WriteTag(tag);
            int timeInMilliseconds = 0;
            int index = 0;

            if (metaCue != null)
            {
                Array.Sort <MetaCue>(metaCue);
                timeInMilliseconds = this.GetTimeInMilliseconds(metaCue[0]);
            }
            while (reader.HasMoreTags())
            {
                tag = reader.ReadTag();
                if (index < metaCue.Length)
                {
                    while (tag.Timestamp > timeInMilliseconds)
                    {
                        tag2 = this.InjectMetaCue(metaCue[index], tag);
                        writer.WriteTag(tag2);
                        tag.PreviousTagSize = tag2.BodySize;
                        index++;
                        if (index > (metaCue.Length - 1))
                        {
                            break;
                        }
                        timeInMilliseconds = this.GetTimeInMilliseconds(metaCue[index]);
                    }
                }
                if (tag.DataType != IOConstants.TYPE_METADATA)
                {
                    writer.WriteTag(tag);
                }
            }
            writer.Close();
        }
Beispiel #2
0
        /// <summary>
        /// Initiates writing of the Metadata.
        /// </summary>
        /// <param name="meta">Metadata to write.</param>
        public void Write(MetaData meta)
        {
            // Get cue points, FLV reader and writer
            MetaCue[] metaArr = meta.MetaCue;
            FlvReader reader  = new FlvReader(_file, false);
            FlvWriter writer  = new FlvWriter(_output, false);
            ITag      tag     = null;

            // Read first tag
            if (reader.HasMoreTags())
            {
                tag = reader.ReadTag();
                if (tag.DataType == IOConstants.TYPE_METADATA)
                {
                    if (!reader.HasMoreTags())
                    {
                        throw new IOException("File we're writing is metadata only?");
                    }
                }
            }

            meta.Duration     = (double)reader.Duration / 1000;
            meta.VideoCodecId = reader.VideoCodecId;
            meta.AudioCodecId = reader.AudioCodecId;

            ITag injectedTag = InjectMetaData(meta, tag);

            injectedTag.PreviousTagSize = 0;
            tag.PreviousTagSize         = injectedTag.BodySize;

            writer.WriteHeader();
            writer.WriteTag(injectedTag);
            writer.WriteTag(tag);

            int cuePointTimeStamp = 0;
            int counter           = 0;

            if (metaArr != null)
            {
                Array.Sort(metaArr);
                cuePointTimeStamp = GetTimeInMilliseconds(metaArr[0]);
            }

            while (reader.HasMoreTags())
            {
                tag = reader.ReadTag();

                // if there are cuePoints in the array
                if (counter < metaArr.Length)
                {
                    // If the tag has a greater timestamp than the
                    // cuePointTimeStamp, then inject the tag
                    while (tag.Timestamp > cuePointTimeStamp)
                    {
                        injectedTag = InjectMetaCue(metaArr[counter], tag);
                        writer.WriteTag(injectedTag);

                        tag.PreviousTagSize = injectedTag.BodySize;

                        // Advance to the next CuePoint
                        counter++;

                        if (counter > (metaArr.Length - 1))
                        {
                            break;
                        }

                        cuePointTimeStamp = GetTimeInMilliseconds(metaArr[counter]);
                    }
                }

                if (tag.DataType != IOConstants.TYPE_METADATA)
                {
                    writer.WriteTag(tag);
                }
            }
            writer.Close();
        }
Beispiel #3
0
        /// <summary>
        /// Initiates writing of the Metadata.
        /// </summary>
        /// <param name="meta">Metadata to write.</param>
        public void Write(MetaData meta)
        {
            // Get cue points, FLV reader and writer
            MetaCue[] metaArr = meta.MetaCue;
            FlvReader reader = new FlvReader(_file, false);
            FlvWriter writer = new FlvWriter(_output, false);
            ITag tag = null;

            // Read first tag
            if (reader.HasMoreTags())
            {
                tag = reader.ReadTag();
                if (tag.DataType == IOConstants.TYPE_METADATA)
                {
                    if (!reader.HasMoreTags())
                        throw new IOException("File we're writing is metadata only?");
                }
            }

            meta.Duration = (double)reader.Duration / 1000;
            meta.VideoCodecId = reader.VideoCodecId;
            meta.AudioCodecId = reader.AudioCodecId;

            ITag injectedTag = InjectMetaData(meta, tag);
            injectedTag.PreviousTagSize = 0;
            tag.PreviousTagSize = injectedTag.BodySize;

            writer.WriteHeader();
            writer.WriteTag(injectedTag);
            writer.WriteTag(tag);

            int cuePointTimeStamp = 0;
            int counter = 0;

            if (metaArr != null)
            {
                Array.Sort(metaArr);
                cuePointTimeStamp = GetTimeInMilliseconds(metaArr[0]);
            }

            while (reader.HasMoreTags())
            {
                tag = reader.ReadTag();

                // if there are cuePoints in the array 
                if (counter < metaArr.Length)
                {

                    // If the tag has a greater timestamp than the
                    // cuePointTimeStamp, then inject the tag
                    while (tag.Timestamp > cuePointTimeStamp)
                    {

                        injectedTag = InjectMetaCue(metaArr[counter], tag);
                        writer.WriteTag(injectedTag);

                        tag.PreviousTagSize = injectedTag.BodySize;

                        // Advance to the next CuePoint
                        counter++;

                        if (counter > (metaArr.Length - 1))
                        {
                            break;
                        }

                        cuePointTimeStamp = GetTimeInMilliseconds(metaArr[counter]);

                    }
                }

                if (tag.DataType != IOConstants.TYPE_METADATA)
                {
                    writer.WriteTag(tag);
                }

            }
            writer.Close();
        }