fisix
5th July 2002, 10:00
hope the subject catches it all
i have an avi captured from an ntsc broadcast of a boxing match. i'm almost positive that it was NTSC from beginning to end. what i'd like to end up with is a decent quality (video, sound is unimportant) SVCD or VCD that can run on my pioneer dvd player without stuttering.
my current path is to take the avi, copy the sound to a wav file, use besweet to get it to an mpeg2 audio with a 128kbps bit rate, and then do the following to the video:
create a .avs file to use avisynth to frameserve to CCE2.50. in avisynth i resize (480x480), noise filter, and then try to decimate the fps down to film, though i've also just tried to deinterlace (but keep the 30FPS) all using decomb. there are issues with this last i will discuss later.
in CCE2.5 i encode, using the default selections (except for the progressive frames check) OR using some of the settings in doom9's getting the best out of CCE guide. both generate a reasonably nice video stream. sadly, if i go over 2500kbps, even just 3000kbps, my dvd player stutters during playback. i set it up to not output an audio file.
i optionally use pulldown.exe depending on if i've tried to decimate the ntsc source.
i use the latest bbmpeg dowloadable from doom9 to mux the video from cce and audio from besweet. i know that when i get a memory underrun while muxing in the 'svcd' option, this indicates a probable stuttering in my dvd player.
finally i use vcdeasy to burn.
QUESTIONS:
1)should i use a smaller bitrate than 192kbps for audio? should i be using besweet to encode it?
2)should i try to decimate a live (not animation) ntsc bradcast into film? so far i seem to end up with jumpy video (like it's skipping a frame). if i'm concerned with quality AND space, should i try to generate progressive frames? are my size settings correct? should i try to generate a vcd instead?
3) should i expect any bitrate over 2500kbps to stutter on my dvd player? doom9's guide seems to allow for the vbr to exceed 2500. is it usual for a dvd player to say 'VCD' when its reading a VCD AND an SVCD? maybe my player only plays vcds and somehow recognises an svcd as a vcd and so is limited in overall bitrate.
4) the special settings in the doom9 guide, where he wants a linear quantizer checked, the inter dc precision set to auto etc seems to mess the synch up pretty badly. for me. with ntsc source. why? are there better instructions if one is starting from a captured avi? am i using too early a version of cce?
5) should i be using any special settings in pulldown.exe? i noticed that another poster opted for this line:
pulldown source.m2v target.m2v -prog_frames p -prog_seq i
and i've just been using pulldown source.m2v. i ask because i used the same method of decimation in avisynth for a divx version of the fight and it turned out just fine, but i can't seem to get the same after using cce/pulldown/bbmpeg.
6) in bbmpeg, should i have vbr checked if i'm feeding it a cbr mpeg? i can't seem to see a difference.
i think i've found all my audio synch problems, in setting the Timecode to 0 in cce, but i'm still worried about it. it still seems loose but i'm trying to get all the video problems out of the way with a short 2 minute clip first. not enough time to really see a slowly increasing desynch. any obvious misses on my part?
i've tried progressive frames, i've tried straight ntsc all the way through without even serving with avisynth, but the result still seems jumpy and low quality. with 480x480 and 2500, the quality looks pretty yucky when the motion is fast (most of the fight). my goal is to end up with about 30 minutes of vcr quality or better on one cd. for now i am testing at higher than allowed bitrates and just checking the video with playback in zoomplayer (p3-1GHz, most likely bitrate not platform limited).
after all the questions above, i'd like general pointers on how to make the mpeg output look the best i can. i am beginning to think that the getting the best out of cce guide is for dvd gen. anyway, hope someone read through all this and can help. hey, at least i'm happy about the quality of the video that cce can put out when compared to tmpg. if i can just get it to work right, i'll be in heaven
-fisix
i have an avi captured from an ntsc broadcast of a boxing match. i'm almost positive that it was NTSC from beginning to end. what i'd like to end up with is a decent quality (video, sound is unimportant) SVCD or VCD that can run on my pioneer dvd player without stuttering.
my current path is to take the avi, copy the sound to a wav file, use besweet to get it to an mpeg2 audio with a 128kbps bit rate, and then do the following to the video:
create a .avs file to use avisynth to frameserve to CCE2.50. in avisynth i resize (480x480), noise filter, and then try to decimate the fps down to film, though i've also just tried to deinterlace (but keep the 30FPS) all using decomb. there are issues with this last i will discuss later.
in CCE2.5 i encode, using the default selections (except for the progressive frames check) OR using some of the settings in doom9's getting the best out of CCE guide. both generate a reasonably nice video stream. sadly, if i go over 2500kbps, even just 3000kbps, my dvd player stutters during playback. i set it up to not output an audio file.
i optionally use pulldown.exe depending on if i've tried to decimate the ntsc source.
i use the latest bbmpeg dowloadable from doom9 to mux the video from cce and audio from besweet. i know that when i get a memory underrun while muxing in the 'svcd' option, this indicates a probable stuttering in my dvd player.
finally i use vcdeasy to burn.
QUESTIONS:
1)should i use a smaller bitrate than 192kbps for audio? should i be using besweet to encode it?
2)should i try to decimate a live (not animation) ntsc bradcast into film? so far i seem to end up with jumpy video (like it's skipping a frame). if i'm concerned with quality AND space, should i try to generate progressive frames? are my size settings correct? should i try to generate a vcd instead?
3) should i expect any bitrate over 2500kbps to stutter on my dvd player? doom9's guide seems to allow for the vbr to exceed 2500. is it usual for a dvd player to say 'VCD' when its reading a VCD AND an SVCD? maybe my player only plays vcds and somehow recognises an svcd as a vcd and so is limited in overall bitrate.
4) the special settings in the doom9 guide, where he wants a linear quantizer checked, the inter dc precision set to auto etc seems to mess the synch up pretty badly. for me. with ntsc source. why? are there better instructions if one is starting from a captured avi? am i using too early a version of cce?
5) should i be using any special settings in pulldown.exe? i noticed that another poster opted for this line:
pulldown source.m2v target.m2v -prog_frames p -prog_seq i
and i've just been using pulldown source.m2v. i ask because i used the same method of decimation in avisynth for a divx version of the fight and it turned out just fine, but i can't seem to get the same after using cce/pulldown/bbmpeg.
6) in bbmpeg, should i have vbr checked if i'm feeding it a cbr mpeg? i can't seem to see a difference.
i think i've found all my audio synch problems, in setting the Timecode to 0 in cce, but i'm still worried about it. it still seems loose but i'm trying to get all the video problems out of the way with a short 2 minute clip first. not enough time to really see a slowly increasing desynch. any obvious misses on my part?
i've tried progressive frames, i've tried straight ntsc all the way through without even serving with avisynth, but the result still seems jumpy and low quality. with 480x480 and 2500, the quality looks pretty yucky when the motion is fast (most of the fight). my goal is to end up with about 30 minutes of vcr quality or better on one cd. for now i am testing at higher than allowed bitrates and just checking the video with playback in zoomplayer (p3-1GHz, most likely bitrate not platform limited).
after all the questions above, i'd like general pointers on how to make the mpeg output look the best i can. i am beginning to think that the getting the best out of cce guide is for dvd gen. anyway, hope someone read through all this and can help. hey, at least i'm happy about the quality of the video that cce can put out when compared to tmpg. if i can just get it to work right, i'll be in heaven
-fisix