Greetings all,
I've been working on a home movie using Cinelerra and the time has
come for me to burn it to DVD. I rendered my film to AVI/DV and
then use luv2yuv to pipe it to mpeg2enc and mp2enc. Following that,
I use mplex to create DVDauthor compatible output and there
I run into my problem. Everything is 29.97 fps throughout, but
after mplex I'm left with 23.976 fps. Here's what I think
will be helpful. Any thoughts on the matter would be greatly
appreciated. I'd prefer 29.97 (30) fps output for my final product.
lav2yuv c0.avi01 | \
mpeg2enc -I 0 -f 8 -q 5 -F 4 -V 230 -b 7500 -r 32 -2 1 -4 1 -H -n n -P -o
c0.avi01.m2v
lav2wav c0.avi01 | \
mp2enc -b 224 -r 48000 -s -o c0.avi01.m2a
[root]# mplex -f 8 -o c0.avi01.mpg c0.avi01.m2a c0.avi01.m2v
INFO: [mplex] mplex version 1.6.2 (2.2.3 $Date: 2004/01/13 20:45:26 $)
INFO: [mplex] File c0.avi01.m2a looks like an MPEG Audio stream.
INFO: [mplex] File c0.avi01.m2v looks like an MPEG Video stream.
INFO: [mplex] Video stream 0: profile 8 selected - ignoring non-standard
options!
INFO: [mplex] Found 1 audio streams and 1 video streams
INFO: [mplex] Selecting dvdauthor DVD output profile
INFO: [mplex] Multiplexing video program stream!
INFO: [mplex] Scanning for header info: Audio stream c0 (c0.avi01.m2a)
INFO: [mplex] MPEG AUDIO STREAM: c0
INFO: [mplex] Audio version : 1.0
INFO: [mplex] Layer : 2
INFO: [mplex] CRC checksums : no
INFO: [mplex] Bit rate : 28672 bytes/sec (224 kbit/sec)
INFO: [mplex] Frequency : 48000 Hz
INFO: [mplex] Mode : 0 stereo
INFO: [mplex] Mode extension : 0
INFO: [mplex] Copyright bit : 0 no copyright
INFO: [mplex] Original/Copy : 0 copy
INFO: [mplex] Emphasis : 0 none
INFO: [mplex] Scanning for header info: Video stream e0 (c0.avi01.m2v)
INFO: [mplex] VIDEO STREAM: e0
INFO: [mplex] Frame width : 720
INFO: [mplex] Frame height : 480
INFO: [mplex] Aspect ratio : 4:3 display
INFO: [mplex] Picture rate : 29.970 frames/sec
INFO: [mplex] Bit rate : 7500000 bits/sec
INFO: [mplex] Vbv buffer size : 229376 bytes
INFO: [mplex] CSPF : 0
INFO: [mplex] SYSTEMS/PROGRAM stream:
INFO: [mplex] rough-guess multiplexed stream data rate : 7889048
INFO: [mplex] target data-rate specified : 10080000
INFO: [mplex] Setting specified specified data rate: 10080000
INFO: [mplex] Run-in Sectors = 89 Video delay = 13019 Audio delay = 16022
INFO: [mplex] New sequence commences...
INFO: [mplex] Audio c0: buf= 4096 frame=000000 sector=00000000
INFO: [mplex] Video e0: buf= 237568 frame=000000 sector=00000000
INFO: [mplex] Scanned to end AU 6319
INFO: [mplex] STREAM e0 completed @ frame 6319.
INFO: [mplex] STREAM c0 completed @ frame 8785.
INFO: [mplex] Multiplex completion at SCR=18981010.
INFO: [mplex] Audio c0: buf= 736 frame=008785 sector=00002923
INFO: [mplex] Video e0: buf= 236700 frame=006319 sector=00034451
INFO: [mplex] AUDIO_STATISTICS: c0
INFO: [mplex] Audio stream length 5904192 bytes.
INFO: [mplex] Syncwords : 8786
INFO: [mplex] Frames : 8786 padded
INFO: [mplex] Frames : 0 unpadded
INFO: [mplex] BUFFERING min 15 Buf max 683
INFO: [mplex] VIDEO_STATISTICS: e0
INFO: [mplex] Video Stream length: 69519475 bytes
INFO: [mplex] Sequence headers: 368
INFO: [mplex] Sequence ends : 1
INFO: [mplex] No. Pictures : 6319
INFO: [mplex] No. Groups : 368
INFO: [mplex] No. I Frames : 368 avg. size 47160 bytes
INFO: [mplex] No. P Frames : 5952 avg. size 8764 bytes
INFO: [mplex] No. B Frames : 0 avg. size 0 bytes
INFO: [mplex] Average bit-rate : 2636800 bits/sec
INFO: [mplex] Peak bit-rate : 7689200 bits/sec
INFO: [mplex] BUFFERING min 16 Buf max 220255
INFO: [mplex] MUX STATUS: no under-runs detected.
[root]# ls -la
total 148996
drwxr-xr-x 3 root root 4096 Jun 16 2004 .
drwxr-xr-x 15 root root 4096 Jun 15 10:34 ..
drwxr-xr-x 2 root root 4096 Jun 15 2004 avi
lrwxrwxrwx 1 root root 12 Jun 15 2004 c0.avi01 ->
avi/c0.avi01
-rw-r--r-- 1 root root 5904193 Jun 15 2004 c0.avi01.m2a
-rw-r--r-- 1 root root 69519475 Jun 15 2004 c0.avi01.m2v
-rw-r--r-- 1 root root 76963840 Jun 15 12:30 c0.avi01.mpg
lrwxrwxrwx 1 root root 12 Jun 15 2004 c1.avi01 ->
avi/c1.avi01
lrwxrwxrwx 1 root root 12 Jun 15 2004 c1.avi02 ->
avi/c1.avi02
lrwxrwxrwx 1 root root 12 Jun 15 2004 c2.avi01 ->
avi/c2.avi01
lrwxrwxrwx 1 root root 12 Jun 15 2004 c3.avi01 ->
avi/c3.avi01
lrwxrwxrwx 1 root root 12 Jun 15 2004 c4.avi01 ->
avi/c4.avi01
lrwxrwxrwx 1 root root 12 Jun 15 2004 c4.avi02 ->
avi/c4.avi02
[root]# tcprobe -i c0.avi01.m2v
[tcprobe] MPEG elementary stream (ES)
[tcprobe] summary for c0.avi01.m2v, (*) = not default, 0 = not detected
import frame size: -g 720x480 [720x576] (*)
aspect ratio: 4:3 (*)
frame rate: -f 29.970 [25.000] frc=4 (*)
no audio track: use "null" import module for audio
[root]# tcprobe -i c0.avi01.mpg
[tcprobe] MPEG program stream (PS)
[tcprobe] summary for c0.avi01.mpg, (*) = not default, 0 = not detected
import frame size: -g 720x480 [720x576] (*)
aspect ratio: 4:3 (*)
frame rate: -f 23.976 [25.000] frc=1 (*)
PTS=0.1780, frame_time=41 ms, bitrate=7500 kbps
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