AVI to MKV Quality Issue
Posted: Sun Oct 14, 2007 8:04 pm
Ok, so here's my problem... I'll try to explain it with all the details, in case someone can help me on the other issue I have which doesn't have anything to do with MediaCoder
For the past few months I've been using Gordian Knot to encode my anime AVI files to MKV. The original AVI files had (and still have) an unusual bug. When I loaded the file into GK it showed, like, only 2-3% of the real frame count, so I used an app called AVIfixed to find and fix frame errors in the file. It worked every time, but as a result, most of the audio stream disappear, as if it was muted (I checked that with Sound Forge). But, when I loaded the "fixed" AVI file and encoded it, the last 30-60 seconds in the video stream were gone (I muxed the audio stream with MKVmergeGUI, previously encoded to .m4a with Winamp). The point is that the quality was just fine, but I still don't understand what's the problem...
OK, now the MediaCoder issue...
Unlike Gordian Knot, MediaCoder encoded both video and audio streams just fine, but the resulting video was blurry. Every color transition and line looks very bad, even though I used the same setting I use with Gordian Knot, which are as follows:
Video
Format: H264
Container: MKV
Bitrate: (depends on the length, ~405 kpbs)
Audio
Encoder: CT AAC+, type: AAC+, MPEG-4 AAC
Bitrate: 48 kpbs
The resulting filesize is supposed to be 75 MB, and the settings worked perfectly, but as I said, the resulting video stream was too blurry. Is there a way to fix this or at least add some effects to the video stream (the stream is NTSC, so there's no need for deinterlacing)?
EDIT - Oh, yeah, I forgot to mention that I used a 3-pass encoding. I'm not an expert in video encoding, but I think that a 3-pass encoding should've resulted in a much higher quality, right?
For the past few months I've been using Gordian Knot to encode my anime AVI files to MKV. The original AVI files had (and still have) an unusual bug. When I loaded the file into GK it showed, like, only 2-3% of the real frame count, so I used an app called AVIfixed to find and fix frame errors in the file. It worked every time, but as a result, most of the audio stream disappear, as if it was muted (I checked that with Sound Forge). But, when I loaded the "fixed" AVI file and encoded it, the last 30-60 seconds in the video stream were gone (I muxed the audio stream with MKVmergeGUI, previously encoded to .m4a with Winamp). The point is that the quality was just fine, but I still don't understand what's the problem...
OK, now the MediaCoder issue...
Unlike Gordian Knot, MediaCoder encoded both video and audio streams just fine, but the resulting video was blurry. Every color transition and line looks very bad, even though I used the same setting I use with Gordian Knot, which are as follows:
Video
Format: H264
Container: MKV
Bitrate: (depends on the length, ~405 kpbs)
Audio
Encoder: CT AAC+, type: AAC+, MPEG-4 AAC
Bitrate: 48 kpbs
The resulting filesize is supposed to be 75 MB, and the settings worked perfectly, but as I said, the resulting video stream was too blurry. Is there a way to fix this or at least add some effects to the video stream (the stream is NTSC, so there's no need for deinterlacing)?
EDIT - Oh, yeah, I forgot to mention that I used a 3-pass encoding. I'm not an expert in video encoding, but I think that a 3-pass encoding should've resulted in a much higher quality, right?