mdog
18th February 2005, 05:47
I've been encoding some NTSC video with AutoGK and have noticed what appears to be dropped frames or jittery motion in the final video, which is not present in the source DVD. I have tried both xvid and divx codecs with the same result. I've also tried using the hidden menu's FrameRate setting but this doesn't seem to affect it as the final video always correctly winds up being 29.970fps.
Any ideas what I may be doing wrong?
I've put a 5MB clip demonstrating this at http://slacktopia.org/oobi_clip.avi. From 00:00:14 to 00:00:16, when the characters are walking into the room, you can notice this clearly in the background panning. Apologies for the cheezy clip :)
[2/17/2005 7:39:14 PM] AutoGK 1.91b
[2/17/2005 7:39:14 PM] OS: WinXP (5.1.2600).2
[2/17/2005 7:39:14 PM] Job started.
[2/17/2005 7:39:14 PM] Input file: VTS_01_1.VOB
[2/17/2005 7:39:14 PM] Output file: G:\oobi_v1\chap5\zzzf9.avi
[2/17/2005 7:39:14 PM] Audio: Audio Stream 0
[2/17/2005 7:39:14 PM] Subtitles: none
[2/17/2005 7:39:14 PM] Codec: DivX
[2/17/2005 7:39:14 PM] Target quality: 50%
[2/17/2005 7:39:14 PM] Custom resolution settings: fixed width of 640 pixels
[2/17/2005 7:39:14 PM] Custom audio settings: CBR MP3 with bitrate: 128Kbps
[2/17/2005 7:39:14 PM] Started encoding.
[2/17/2005 7:39:14 PM] Demuxing and indexing.
[2/17/2005 7:39:44 PM] Processing file: G:\oobi_v1\chap5\VTS_01_1.VOB
[2/17/2005 7:39:44 PM] Source aspect ratio: 4:3
[2/17/2005 7:39:44 PM] Source resolution: 720x480
[2/17/2005 7:39:44 PM] Found NTSC source.
[2/17/2005 7:39:44 PM] Analyzing source.
[2/17/2005 7:40:37 PM] Source is considered to be hybrid (mostly NTSC).
[2/17/2005 7:40:37 PM] Looking for optimal hybrid thresholds.
[2/17/2005 7:40:39 PM] Found threshold of: 0.01
[2/17/2005 7:40:39 PM] Output will contain 19003 frames
[2/17/2005 7:40:39 PM] Decoding audio.
[2/17/2005 7:40:55 PM] Normalizing audio.
[2/17/2005 7:41:01 PM] Encoding audio.
[2/17/2005 7:41:52 PM] Running single pass encoding.
[2/17/2005 7:54:40 PM] Duration was: 12 minutes 48 seconds
[2/17/2005 7:54:40 PM] Speed was: 24.74 fps.
[2/17/2005 7:54:40 PM] Job finished. Total time: 15 minutes 25 seconds
====================================================
Any ideas what I may be doing wrong?
I've put a 5MB clip demonstrating this at http://slacktopia.org/oobi_clip.avi. From 00:00:14 to 00:00:16, when the characters are walking into the room, you can notice this clearly in the background panning. Apologies for the cheezy clip :)
[2/17/2005 7:39:14 PM] AutoGK 1.91b
[2/17/2005 7:39:14 PM] OS: WinXP (5.1.2600).2
[2/17/2005 7:39:14 PM] Job started.
[2/17/2005 7:39:14 PM] Input file: VTS_01_1.VOB
[2/17/2005 7:39:14 PM] Output file: G:\oobi_v1\chap5\zzzf9.avi
[2/17/2005 7:39:14 PM] Audio: Audio Stream 0
[2/17/2005 7:39:14 PM] Subtitles: none
[2/17/2005 7:39:14 PM] Codec: DivX
[2/17/2005 7:39:14 PM] Target quality: 50%
[2/17/2005 7:39:14 PM] Custom resolution settings: fixed width of 640 pixels
[2/17/2005 7:39:14 PM] Custom audio settings: CBR MP3 with bitrate: 128Kbps
[2/17/2005 7:39:14 PM] Started encoding.
[2/17/2005 7:39:14 PM] Demuxing and indexing.
[2/17/2005 7:39:44 PM] Processing file: G:\oobi_v1\chap5\VTS_01_1.VOB
[2/17/2005 7:39:44 PM] Source aspect ratio: 4:3
[2/17/2005 7:39:44 PM] Source resolution: 720x480
[2/17/2005 7:39:44 PM] Found NTSC source.
[2/17/2005 7:39:44 PM] Analyzing source.
[2/17/2005 7:40:37 PM] Source is considered to be hybrid (mostly NTSC).
[2/17/2005 7:40:37 PM] Looking for optimal hybrid thresholds.
[2/17/2005 7:40:39 PM] Found threshold of: 0.01
[2/17/2005 7:40:39 PM] Output will contain 19003 frames
[2/17/2005 7:40:39 PM] Decoding audio.
[2/17/2005 7:40:55 PM] Normalizing audio.
[2/17/2005 7:41:01 PM] Encoding audio.
[2/17/2005 7:41:52 PM] Running single pass encoding.
[2/17/2005 7:54:40 PM] Duration was: 12 minutes 48 seconds
[2/17/2005 7:54:40 PM] Speed was: 24.74 fps.
[2/17/2005 7:54:40 PM] Job finished. Total time: 15 minutes 25 seconds
====================================================