protected void updateSourceMedia(SourceMedia sourceMedia, Android.Net.Uri uri)
{
sourceMedia.uri = uri;
sourceMedia.size = TranscoderUtils.GetSize(this, uri);
sourceMedia.duration = getMediaDuration(uri) / 1000f;
try
{
MediaExtractor mediaExtractor = new MediaExtractor();
mediaExtractor.SetDataSource(this, uri, null);
sourceMedia.tracks = new List<MediaTrackFormat>(mediaExtractor.TrackCount);
for (int track = 0; track < mediaExtractor.TrackCount; track++)
{
MediaFormat mediaFormat = mediaExtractor.GetTrackFormat(track);
var mimeType = mediaFormat.GetString(MediaFormat.KeyMime);
if (mimeType == null)
{
continue;
}
if (mimeType.StartsWith("video"))
{
VideoTrackFormat videoTrack = new VideoTrackFormat(track, mimeType);
videoTrack.width = getInt(mediaFormat, MediaFormat.KeyWidth);
videoTrack.height = getInt(mediaFormat, MediaFormat.KeyHeight);
videoTrack.duration = getLong(mediaFormat, MediaFormat.KeyDuration);
videoTrack.frameRate = MediaFormatUtils.GetFrameRate(mediaFormat, new Java.Lang.Integer(-1)).IntValue();
videoTrack.keyFrameInterval = MediaFormatUtils.GetIFrameInterval(mediaFormat, new Java.Lang.Integer(-1)).IntValue();
videoTrack.rotation = getInt(mediaFormat, TrackMetadataUtil.KEY_ROTATION, 0);
videoTrack.bitrate = getInt(mediaFormat, MediaFormat.KeyBitRate);
sourceMedia.tracks.Add(videoTrack);
}
else if (mimeType.StartsWith("audio"))
{
AudioTrackFormat audioTrack = new AudioTrackFormat(track, mimeType);
audioTrack.channelCount = getInt(mediaFormat, MediaFormat.KeyChannelCount);
audioTrack.samplingRate = getInt(mediaFormat, MediaFormat.KeySampleRate);
audioTrack.duration = getLong(mediaFormat, MediaFormat.KeyDuration);
audioTrack.bitrate = getInt(mediaFormat, MediaFormat.KeyBitRate);
sourceMedia.tracks.Add(audioTrack);
}
else
{
sourceMedia.tracks.Add(new GenericTrackFormat(track, mimeType));
}
}
}
catch (IOException ex)
{
System.Diagnostics.Debug.WriteLine($"Failed to extract sourceMedia: {ex.Message}");
}
sourceMedia.NotifyChange();
}
private static String printVideoMetadata(Context context, MediaFormat mediaFormat)
{
if (mediaFormat == null)
{
return("\n");
}
StringBuilder stringBuilder = new StringBuilder();
if (mediaFormat.ContainsKey(MediaFormat.KeyMime))
{
stringBuilder.AppendLine(context.GetString(Resource.String.stats_mime_type, mediaFormat.GetString(MediaFormat.KeyMime)));
}
if (mediaFormat.ContainsKey(MediaFormat.KeyWidth))
{
stringBuilder.AppendLine(context.GetString(Resource.String.stats_width, mediaFormat.GetInteger(MediaFormat.KeyWidth)));
}
if (mediaFormat.ContainsKey(MediaFormat.KeyHeight))
{
stringBuilder.AppendLine(context.GetString(Resource.String.stats_height, mediaFormat.GetInteger(MediaFormat.KeyHeight)));
}
if (mediaFormat.ContainsKey(MediaFormat.KeyBitRate))
{
stringBuilder.AppendLine(context.GetString(Resource.String.stats_bitrate, mediaFormat.GetInteger(MediaFormat.KeyBitRate)));
}
if (mediaFormat.ContainsKey(MediaFormat.KeyDuration))
{
stringBuilder.AppendLine(context.GetString(Resource.String.stats_duration, mediaFormat.GetLong(MediaFormat.KeyDuration)));
}
if (mediaFormat.ContainsKey(MediaFormat.KeyFrameRate))
{
stringBuilder.AppendLine(context.GetString(Resource.String.stats_frame_rate, MediaFormatUtils.GetFrameRate(mediaFormat, new Java.Lang.Integer(0)).IntValue()));
}
if (mediaFormat.ContainsKey(MediaFormat.KeyIFrameInterval))
{
stringBuilder.AppendLine(context.GetString(Resource.String.stats_key_frame_interval, MediaFormatUtils.GetIFrameInterval(mediaFormat, new Java.Lang.Integer(0)).IntValue()));
}
if (mediaFormat.ContainsKey(KEY_ROTATION))
{
stringBuilder.AppendLine(context.GetString(Resource.String.stats_rotation, mediaFormat.GetInteger(KEY_ROTATION)));
}
return(stringBuilder.ToString());
}
