public static void ParseOutputStream(Stream outputStream, out FFmpegEncodingInfo saveData, bool logMessages, bool logProgress)
{
StreamReader reader = new StreamReader(outputStream);
saveData = new FFmpegEncodingInfo();
bool aborted = false;
string line;
while ((line = reader.ReadLine()) != null) {
try {
if (line.StartsWith("frame=")) {
// format of an output line (yes, we're doomed as soon as ffmpeg changes it output):
// frame= 923 fps=256 q=31.0 size= 2712kB time=00:05:22.56 bitrate= 601.8kbits/s
Match match = Regex.Match(line, @"frame=([ 0-9]*) fps=([ 0-9]*) q=[^ ]* L?size=([ 0-9]*)kB time=([0-9]{2}):([0-9]{2}):([0-9]{2})\.[0-9]{2} bitrate=([ .0-9]*)kbits/s", RegexOptions.IgnoreCase);
if (match.Success) {
lock (saveData) {
saveData.CurrentBitrate = Decimal.Parse(match.Groups[7].Value, System.Globalization.CultureInfo.InvariantCulture);
saveData.CurrentTime = Int32.Parse(match.Groups[4].Value) * 3600 + Int32.Parse(match.Groups[5].Value) * 60 + Int32.Parse(match.Groups[6].Value);
saveData.EncodedFrames = Int32.Parse(match.Groups[1].Value);
saveData.EncodingFPS = Int32.Parse(match.Groups[2].Value);
saveData.EncodedKb = Int32.Parse(match.Groups[3].Value);
}
if (!logProgress) {
//we don't want to log progress reports
continue;
}
}
} else if (line.StartsWith("video:")) {
//process the result line (e.g. video:5608kB audio:781kB global headers:0kB muxing overhead 13.235302%)
//line to see if it completed successfully
Match resultMatch = Regex.Match(line, @"video:([0-9]*)kB audio:([0-9]*)kB global headers:([0-9]*)kB muxing overhead[^%]*%", RegexOptions.IgnoreCase);
bool success = false;
if (resultMatch.Success) {
success = true;
}
lock (saveData) {
saveData.FinishedSuccessfully = success;
}
} else if (line.Contains("Application provided invalid, non monotonically increasing dts to muxer")) {
lock (saveData) {
saveData.EncodingErrors = saveData.EncodingErrors | FFMpegEncodingErrors.NonMonotonicallyIncreasingDts;
}
} else if (line.Contains("start time is not set in av_estimate_timings_from_pts")) {
lock (saveData) {
saveData.EncodingErrors = saveData.EncodingErrors | FFMpegEncodingErrors.StartTimeNotSetInEstimateTimingsFromPts;
}
} else if (line.Contains("use -vbsf h264_mp4toannexb")) {
lock (saveData) {
saveData.EncodingErrors = saveData.EncodingErrors | FFMpegEncodingErrors.UseVbsfH264Mp4ToAnnexb;
}
}
if (logMessages) {
Log.Trace(line);
}
} catch (ThreadAbortException) {
// allow it to be used in a thread
aborted = true; ;
reader.Close();
break;
} catch (Exception e) {
aborted = true;
Log.Error("Failure during parsing of ffmpeg output", e);
}
}
if (aborted) {
}
reader.Close();
return;
}
public static void ParseOutputStream(Stream outputStream, out FFmpegEncodingInfo saveData)
{
ParseOutputStream(outputStream, out saveData, true, false);
}