Idea: autodetecting source filter

[hanfrunz]

Hello everyone,

would it be possible to write a source filter that autodetects the type of source (using mediainfo and a config file) and then chooses an appropriate source filter via invoke()? And of course you should be able to pass parameters like audio=false etc. That would make batch scripting so much easier.

hanfrunz

EDIT: can a moderator please move it to development?

[buzzqw]

ffmpegsource is near universal for accessing files...

i think your request is more like a try&try till a working filters is found...

BHH

[stax76]

Are you sure it's not easier using some GUI? Batch precessing (not to be confused with job processing) is a popular feature in StaxRip so I have some interest in this topic.

[Mug Funky]

nested use of "try{..} catch {...}"

so first up you try avisource, then qtinput, then mpeg2source, then ffmpegsource, then directshowsource.

or order them by whichever is most convenient.

throw in some ifs to search the file extension if you like "findstr(filename,".mov") > 0? qtinput() : avisource()"

this way you can use the ideal for each format

[manolito]

MrC does it like this in his AVStoDVD software. Have a look here:

http://forum.doom9.org/showthread.php?p=1215535#post1215535


Cheers
manolito

[MrC]

Thanks Manolito to mention it. Please do remember that I am a poor avisynth script writer, so feel free to suggest any improvements. This is the latest update:

# A2DSource library: Universal AviSynth Source Functions
# Written by MrC (November 2008)
# Updated by MrC (July 2010)
# Following AviSynth plugins are required in the same A2DSource folder:
# ffms2.dll more info @ http://code.google.com/p/ffmpegsource
# GetSystemEnv.dll more info @ http://avisynth.org/stickboy

LoadPlugin("ffms2.dll")
LoadPlugin("GetSystemEnv.dll")
LoadPlugin("NicAudio.dll")


Function A2DVideoSource(string VideoSource, string "CacheFolder", bool "DebugVideo", bool "DebugTxt", bool "VFR")
{
CacheFolder = default(CacheFolder, GetSystemEnv("temp"))
DebugVideo = default(DebugVideo, false)
DebugTxt = default(DebugTxt, true)
VFR = default(VFR, false)
Try {
SourceStr = "A2DVideoSource: AVISource"
Video = AVISource(VideoSource, audio = false)
}
Catch(Err_Msg) {
Try {
SourceStr = "A2DVideoSource: DirectShowSource"
Video = DirectShowSource(VideoSource, convertfps = VFR, audio = false)
}
Catch(Err_Msg) {
Try {
SourceStr = "A2DVideoSource: FFmpegSource2 (cache off)"
Video = FFVideoSource(VideoSource, track = -1, cache = false, seekmode = 0)
}
Catch(Err_Msg) {
SourceStr = "A2DVideoSource: FFmpegSource2 (cache on)"
Video = FFVideoSource(VideoSource, track = -1, cachefile = CacheFolder + "\A2DFFV_" + String(Rand()) + ".cache", seekmode = 0)
}
}
}
Video = (DebugVideo == true) ? Subtitle(Video.Info(), SourceStr, font = "courier new", size = 16, align = 1) : Video
Video = (DebugTxt == true) ? Video.WriteFileStart(CacheFolder + "\A2DVideoInfo.cache", """ "FileName: " """, "VideoSource", true) : Video
Video = (DebugTxt == true) ? Video.WriteFileStart(CacheFolder + "\A2DVideoInfo.cache", "SourceStr", "Chr(13)", true) : Video

Return Video
}


Function A2DAudioSource(string AudioSource, string "CacheFolder", bool "DebugTxt", bool "AudioOnly")
{
CacheFolder = default(CacheFolder, GetSystemEnv("temp"))
DebugTxt = default(DebugTxt, true)
AudioOnly = default(AudioOnly, false)
AudioOnly == true ? Eval("""
Try {
SourceStr = "A2DAudioSource: DirectShowSource"
Audio = DirectShowSource(AudioSource, video = false)
}
Catch(Err_Msg) {
Try {
SourceStr = "A2DAudioSource: WAVSource"
Audio = WAVSource(AudioSource)
}
Catch(Err_Msg) {
Try {
SourceStr = "A2DAudioSource: NicDTSSource"
Audio = NicDTSSource(AudioSource)
}
Catch(Err_Msg) {
Try {
SourceStr = "A2DAudioSource: NicAC3Source"
Audio = NicAC3Source(AudioSource)
}
Catch(Err_Msg) {
SourceStr = "A2DAudioSource: NicMPG123Source"
Audio = NicMPG123Source(AudioSource)
}
}
}
}
""") : Eval("""
Try {
SourceStr = "A2DAudioSource: DirectShowSource"
Audio = DirectShowSource(AudioSource, video = false)
}
Catch(Err_Msg) {
Try {
SourceStr = "A2DAudioSource: FFmpegSource2 (cache off)"
Audio = FFAudioSource(AudioSource, track = -1, cache = false)
}
Catch(Err_Msg) {
SourceStr = "A2DAudioSource: FFmpegSource2 (cache on)"
Audio = FFAudioSource(AudioSource, track = -1, cachefile = CacheFolder + "\A2DFFA_" + String(Rand()) + ".cache")
}
}
""")
Audio = (DebugTxt == true) ? Audio.WriteFileStart(CacheFolder + "\A2DAudioInfo.cache", """ "FileName: " """, "AudioSource", true) : Audio
Audio = (DebugTxt == true) ? Audio.WriteFileStart(CacheFolder + "\A2DAudioInfo.cache", "SourceStr", "Chr(13)", true) : Audio

Return Audio
}

;)

Bye