DVDs that lose Sync while Playing.....

[TugBoat]

OK, my last 'issue'. I hope.
I'm sure you've heard of this before. I have, but, I'd never experienced it first hand. I have a Sylvania 6719dc all-in-one that I purchased specifically to set next to my Mac and test videos. Up until now I've never had a problem with it losing audio sync while playing a DVD. But, up until now, I'd always used the Apple MPEG-2 encoder to create DVDs.

So it's the classic case. DVDs work fine on my Macs and my Samsung V2000 but lose sync after a few minutes when playing on the Sylvania. All you have to do is pause/play or rewind/play and it's back in sync....for a little while. Otherwise the DVDs play fine.

It's not the disc, same thing happens with another brand. The Sylvania never loses sync when playing a straight commercial, DVD2one rip, or Apple MPEG-2 encoded DVD. It only happens when playing a DVD whose video track was encoded with ffmpegX. All the DVDs were created the same way, the only variable is the encoding of the video track. It would appear to be the DVD Player, except for the above.....

I'm open to suggestions

[major]

Try re-muxing and re-authoring with different software, like DVD SP and Sizzle, and check if it does change anything. Post results as well as info about the stream (is it PAL or NTSC, or NTSC FILM with 3:2 pulldown)?

[TugBoat]

I guess I could use the ffmpegX Authoring and see what happens, but, the whole reason I'm using ffmpegX is to create low bitrate multi-track DVDs. I really need DVDSP.

I'm using;
DVDSP 2.05
Toast 6.07
ffmpeg (I've tried I-Frames at 12 or 15 and assorted options)
m2vs between 1200/1800 kbps, half DVD, 4:3 and 16:9, NTSC 29.97, 2-passes
AC3s between 112/128 kbps, 2ch, DDS created by A.Pack 1.5.3
Pioneer 107

Does seem strange that the Samsung can loop a 6.5 hour DVD overnight and not lose sync

Edit for source: Mostly AVIs/MOVs, some DVDs and a few FCP DV captures from Sony handycam. Mostly AVIs.

[major]

Source being cam or film?

[TugBoat]

Mmmmm.
So, I used Sizzle 0.1 on a track from my last DVD+R. I still have the elementary streams since I just completed the three track DVD. The DVDSP disc plays like the rest, video/audio appears smooth but loses sync by about a couple of tenths of a second over a 5 minute period on the Sylvania.

The Sizzle disc is entirely different. Within the first 30 seconds the video freezes for a half second, the audio doesn't. It then suffers the freezing around once a minute for the next couple of minutes. Everytime the video freezes the sync is lost. It does seem to stabilize after the first 10 minutes, but still loses sync every few minutes. It's basically unwatchable...on the Sylvania. It plays fine on my Macs and the Samsung.

So, I ran the first m2v (the original is a 2 file AVI) through ffmpegX with the same settings I used originally. I didn't receive any error messages when I converted the AVIs, I usually don't. This is the first quarter of a 760MB file;
Encoding started on Wed Oct 6 18:14:31 EDT 2004
Input #0, mpegvideo, from '/Volumes/Video/Vampires/VH1.m2v':
Duration: N/A, bitrate: N/A
Stream #0.0: Video: mpeg2video, 352x480, 29.97 fps
Output #0, vob, to '/Volumes/Video/Vampires/VH1.m2v.ff.mpg':
Stream #0.0: Video: mpeg2video (hq), 352x480, 29.97 fps, q=1-8, pass 1, 2300 kb/s
Stream mapping:
Stream #0.0 -> #0.0
[mpeg2video @ 0x331210]rc buffer underflow
[mpeg2video @ 0x331210]ac-tex damaged at 21 29
[mpeg2video @ 0x331210]concealing 2147483647 errors
[mpeg2video @ 0x331210]Warning MVs not available
[mpeg2video @ 0x331210]ac-tex damaged at 18 29
[mpeg2video @ 0x331210]concealing 2147483647 errors
[mpeg2video @ 0x331210]Warning MVs not available
[mpeg2video @ 0x331210]ac-tex damaged at 20 29
[mpeg2video @ 0x331210]concealing 2147483647 errors
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]invalid mb type in P Frame at 15 29
[mpeg2video @ 0x331210]concealing 2147483647 errors
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]invalid mb type in P Frame at 21 29
[mpeg2video @ 0x331210]concealing 2147483647 errors
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]end mismatch left=-1
[mpeg2video @ 0x331210]concealing 2147483647 errors
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
[mpeg2video @ 0x331210]MPEG motion vector out of boundary
bench: utime=615.760s
video:351796kB audio:0kB global headers:0kB muxing overhead 1.321843%
Received signal 2: terminating.

The errors appeared close to where the video was freezing. I think I can see what's going on here. Question is, how to fix it. That m2v is 70 minutes long and was done with 2-pass encoding. It went through DVDSP/Sizzle without a hiccup. I'm sure the Sylvania is not the only picky player around.


************
Just for comparison, I pulled the first VOB off of a recent Apple MPEG2 encoded DVD. This was back before I gave in and conceded that using a high bitrate on a low quaility source was nothing but a waste of space. The file size encoded was about five times as large as the above encode, and only produced a short group of errors right at the very end of the VOB;
Input #0, mpeg, from '/Volumes/Programs/VTS_01_1.VOB':
Wed Oct 6 19:53:06 EDT 2004
Duration: 00:25:26.5, bitrate: 5626 kb/s
Stream #0.0: Video: mpeg2video, 720x480, 29.97 fps
Stream #0.1: Audio: ac3, 48000 Hz, stereo, 160 kb/s
Output #0, vob, to '/Volumes/Programs/VTS_01_1.VOB.ff.mpg':
Stream #0.0: Video: mpeg2video (hq), 352x480, 29.97 fps, q=1-8, pass 1, 3000 kb/s
Stream #0.1: Audio: ac3, 48000 Hz, stereo, 160 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
[mpeg2video @ 0x331210]rc buffer underflow
[mpeg2video @ 0x331210]ac-tex damaged at 29 23
[mpeg2video @ 0x331210]concealing 2147483647 errors
[mpeg2video @ 0x331210]Warning MVs not available
video:355981kB audio:29812kB global headers:0kB muxing overhead 1.354349%
bench: utime=1197.590s

[major]

Thank you. To complete the report, it would be useful to obtain a similar m2v by using mpeg2enc engine instead of ffmpeg engine, and checking it too on your combo player.

[TugBoat]

It just keeps getting better and better....

First, back to that DVD that I Authored with Sizzle 0.1. I used a Memorex DVD-RW (2x), the same disc I've been using without any trouble for months now. That thing turned out to be a real dud. Close to the half way point the video began getting really bad and was even noticeable on the PM using the 107. You could see the frame rate slow at certain points and the audio would stutter, but amazingly, it kept it's sync using Apple's DVD Player. The Castle Dracula scenes were a total wash with the Video/Audio actually freezing/spitting/spuddering and still amazingly holding sync. Glad I don't use Sizzle.

New disc.

I finally ran outta the HP Invert DVD+Rs and finally, late yesterday, got the next shipment oF DVD-Rs. Unfortunately, I didn't get the Ritek G3s I ordered but something that appears to be these;
https://www.videohelp.com/dvdmedia.php?selectmedia=2317#comments
Great. I'm not happy. Now I have to fire off another letter. Since the reviews were good, and I was outta discs, I went ahead and tried them. They appear to work fine.

I was expecting these discs and wanted the last 5 DVDs I built on DVD-Rs so I had kept the final Video_TS folders. I burnt them all to the new discs and they play almost identical to the HP and Memorex discs.

mpeg2enc WTF?

Now the strange part. I used mpeg2enc set at half DVD on the original first AVI. What I got was something similar to the abortion I got the last time I used it on that demuxed OGM movie. This wasn't an OGM, but a perfectly good AVI.

The resulting files were totally outta sync with the video track only lasting 59 minutes instead of almost 71 minutes as it should. I'm pretty sure that mpeg2enc is making a 23.98fps track instead of the 29.97fps track I requested. Even though QT claims it's playing at 30fps it can't be. The audio file is the correct 1:10:42 duration, hence the sync problem.

I'm going to post the entire progress reports to help in identifying the problem. The first report is the AVI->MPEG2 conversion. The second report is the outta sync mpeg conversion using ffmpeg to look for errors. There wasn't any errors...at least not the kind I was looking for. Just a badly outta sync mpg that seems to have the wrong frame rate.

Encoding started on Thu Oct 7 00:19:28 EDT 2004
-f 5 -b 1800 -q 4 -B 260 -V 230 -a 3
-F 4
INFO: [yuvscaler] yuvscaler (version 1.7.0) is a general scaling utility for yuv frames
INFO: [yuvscaler] (C) 2001-2002 Xavier Biquard <xbiquard@free.fr>
INFO: [yuvscaler] yuvscaler -h for help, or man yuvscaler
MPlayer dev-CVS-040904-19:44-3.3 (C) 2000-2004 MPlayer Team
AltiVec found
CPU: PowerPC
Reading config file /usr/local/etc/mplayer/mplayer.confReading config file /Users/tom/.mplayer/config
: No such file or directory
Can't open '/Users/tom/.mplayer/codecs.conf': No such file or directory
Can't open '/usr/local/etc/mplayer/codecs.conf': No such file or directory
Reading /usr/local/etc/mplayer/codecs.conf: Using built-in default codecs.conf.
CommandLine: '-noframedrop' '-vo' 'yuv4mpeg' '-ao' 'pcm' '-waveheader' '-v' '-osdlevel' '0' '/Volumes/Video/Vampires/VH/VH1.avi' '-aid' '1'
init_freetype
get_path('font/font.desc') -> '/Users/tom/.mplayer/font/font.desc'
font: can't open file: /Users/tom/.mplayer/font/font.desc
Font /usr/local/share/mplayer/font/font.desc loaded successfully! (206 chars)
Using Unoptimized OnScreenDisplay
Using Darwin accurate timing
Can't open input config file /Users/tom/.mplayer/input.conf: No such file or directory
Terminal type `unknown' is not defined.
get_path('input.conf') -> '/Users/tom/.mplayer/input.conf'
Can't open input config file /usr/local/etc/mplayer/input.conf: No such file or directory
Falling back on default (hardcoded) input config
get_path('VH1.avi.conf') -> '/Users/tom/.mplayer/VH1.avi.conf'
Playing /Volumes/Video/Vampires/VH/VH1.avi.
[file] File size is 734044160 bytes
STREAM: [file] /Volumes/Video/Vampires/VH/VH1.avi
STREAM: Description: File
STREAM: Author: Albeu
STREAM: Comment: based on the code from ??? (probably Arpi)
AVI file format detected.
list_end=0x22D6
======= AVI Header =======
us/frame: 40000 (fps=25.000)
max bytes/sec: 0
padding: 0
MainAVIHeader.dwFlags: (272) HAS_INDEX IS_INTERLEAVED
frames total: 106052 initial: 0
streams: 2
Suggested BufferSize: 0
Size: 544 x 304
==========================
list_end=0x1138
==> Found video stream: 0
====== STREAM Header =====
Type: sdiv FCC: divx (64697678)
Flags: 0
Priority: 0 Language: 0
InitialFrames: 0
Rate: 25000/1000 = 25.000
Start: 0 Len: 106052
Suggested BufferSize: 61077
Quality 10000
Sample size: 0
==========================
found 'bih', 108 bytes of 40
======= VIDEO Format ======
biSize 40
biWidth 544
biHeight 304
biPlanes 1
biBitCount 12
biCompression 1145656920='DIVX'
biSizeImage 992256
===========================
list_end=0x21CA
==> Found audio stream: 1
====== STREAM Header =====
Type: sdua FCC: (0)
Flags: 0
Priority: 0 Language: 0
InitialFrames: 1
Rate: 48000/1152 = 41.667
Start: 0 Len: 176753
Suggested BufferSize: 960
Quality -1
Sample size: 0
==========================
found 'wf', 30 bytes of 18
======= WAVE Format =======
Format Tag: 85 (0x55)
Channels: 2
Samplerate: 48000
avg byte/sec: 20067
Block align: 1152
bits/sample: 0
cbSize: 12
mp3.wID=256
mp3.fdwFlags=0x2000000
mp3.nBlockSize=57601
mp3.nFramesPerBlock=256
mp3.nCodecDelay=0
===========================
list_end=0x22D6
AVI: dmlh found (size=248) (total_frames=106052)
list_end=0x2300
hdr=Software size=21
Software : VirtualDubMod 1.4.13
list_end=0x2B7B8D12
Found movie at 0x280C - 0x2B7B8D12
Reading INDEX block, 282805 chunks for 106052 frames (fpos=0x0)
AVI index offset: 0x2808 (movi=0x280C idx0=0x4 idx1=0x18C)
Auto-selected AVI audio ID = 1
Auto-selected AVI video ID = 0
AVI: Searching for audio stream (id:1)
AVI video size=641696974 (106052) audio size=85494912 (176753)
VIDEO: [DIVX] 544x304 12bpp 25.000 fps 1210.2 kbps (147.7 kbyte/s)
[V] filefmt:3 fourcc:0x44495658 size:544x304 fps:25.00 ftime:=0.0400
Clip info:
Software: VirtualDubMod 1.4.13
get_path('sub/') -> '/Users/tom/.mplayer/sub/'
get_path('default.sub') -> '/Users/tom/.mplayer/default.sub'
================================================== ========================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
dec_audio: Allocating 4608 + 65536 = 70144 bytes for output buffer.
mp3lib: using generic C decore!
MP3lib: init layer2&3 finished, tables done
MPEG 1.0, Layer III, 48000 Hz 32 kbit Joint-Stereo, BPF: 96
Channels: 2, copyright: No, original: Yes, CRC: No, emphasis: 0
AUDIO: 48000 Hz, 2 ch, 16 bit (0x20), ratio: 4000->192000 (32.0 kbit)
Selected audio codec: [mp3] afm:mp3lib (mp3lib MPEG layer-2, layer-3)
================================================== ========================
vo_yuv4mpeg: Using (default) progressive frame mode
================================================== ========================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
INFO: libavcodec init OK!
Selected video codec: [ffodivx] vfm:ffmpeg (FFmpeg MPEG-4)
================================================== ========================
Checking audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/16bit...
[libaf] Adding filter dummy
[dummy] Was reinitialized, rate=48000Hz, nch = 2, format = 0x00000000 and bps = 2
AF_pre: af format: 2 bps, 2 ch, 48000 hz, big endian signed int
AF_pre: 48000Hz 2ch Signed 16-bit (Big-Endian)
PCM: File: audiodump.wav (WAVE)
PCM: Samplerate: 48000Hz Channels: Stereo Format Signed 16-bit (Little-Endian)
PCM: Info: fastest dumping is achieved with -vc dummy -vo null
PCM: Info: to write WAVE files use -waveheader (default); for RAW PCM -nowaveheader.
AO: [pcm] 48000Hz 2ch Signed 16-bit (Little-Endian) (2 bps)
AO: Description: RAW PCM/WAVE file writer audio output
AO: Author: Atmosfear
Building audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/16bit...
[dummy] Was reinitialized, rate=48000Hz, nch = 2, format = 0x00000000 and bps = 2
[libaf] Adding filter format
[format] Changing sample format from 16bit big endian signed int to 16bit little endian signed int
[dummy] Was reinitialized, rate=48000Hz, nch = 2, format = 0x00000000 and bps = 2
[format] Changing sample format from 16bit big endian signed int to 16bit little endian signed int
Starting playback...
[libaf] Reallocating memory in module format, old len = 0, new len = 65540
[ffmpeg] aspect_ratio: 1.789474
VDec: vo config request - 544 x 304 (preferred csp: Planar YV12)
Trying filter chain: vo
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.79:1 - prescaling to correct movie aspect.
VO Config (544x304->544x304,flags=0,'MPlayer',0x32315659)
VO: [yuv4mpeg] 544x304 => 544x304 Planar YV12
VO: Description: yuv4mpeg output for mjpegtools (to "stream.yuv")
VO: Author: Robert Kesterson <robertk@robertk.com>
*** [vo] Allocating (slices) mp_image_t, 544x304x12bpp YUV planar, 248064 bytes
INFO: [yuvscaler] SVCD output format requested in PAL/SECAM norm
INFO: [yuvscaler] input: frame size: 544x304 pixels (248064 bytes)
INFO: [yuvscaler] input: frame rate: 25/1 fps (~25.000000)
INFO: [yuvscaler] input: interlace: none/progressive
INFO: [yuvscaler] input: sample aspect ratio: ?
INFO: [yuvscaler] from 544x304, take 544x304+0+0, NOT_INTERLACED/PROGRESSIVE
INFO: [yuvscaler] scale to 352x480, 352x480 being displayed, NOT_INTERLACED/PROGRESSIVE
INFO: [yuvscaler] Scaling uses the BICUBIC algorithm,
INFO: [yuvscaler] without line switching
INFO: [yuvscaler] without time forwarding
INFO: [yuvscaler] Without luminance correction
INFO: [yuvscaler] Without chrominance correction
INFO: [yuvscaler] frame rate: 25.000 fps
INFO: [yuvscaler] Scaling ratio for width is 17 to 11
INFO: [yuvscaler] and is 19 to 30 for height
INFO: [yuvscaler] output: frame size: 352x480 pixels (253440 bytes)
INFO: [yuvscaler] output: frame rate: 25/1 fps (~25.000000)
INFO: [yuvscaler] output: sample aspect ratio: ?
INFO: [mpeg2enc] Selecting SVCD output profile
INFO: [mpeg2enc] Assuming norm PAL
++ WARN: [mpeg2enc] Specified display frame-rate 29.97 will over-ride
++ WARN: [mpeg2enc] (different!) frame-rate 25.00 of the input stream
++ WARN: [mpeg2enc] Generating dummy SVCD scan-data offsets to be filled in by "vcdimager"
XXX initial v_pts=0.000 a_pos=9216 (0.459)
*** [vo] Allocating (slices) mp_image_t, 544x304x12bpp YUV planar, 248064 bytes
/Volumes/Video/Vampires/VH/VH1.avi.ff.mpv
INFO: [mpeg2enc] Horizontal size: 352 pel
INFO: [mpeg2enc] Vertical size: 480 pel
INFO: [mpeg2enc] Aspect ratio code: 3 = 16:9 display
INFO: [mpeg2enc] Frame rate code: 4 = 30000.0/1001.0 (NTSC VIDEO)
INFO: [mpeg2enc] Bitrate: 1800 KBit/s
INFO: [mpeg2enc] Quality factor: 4 (Quantisation = 4) (1=best, 31=worst)
INFO: [mpeg2enc] Field order for input: none/progressive
INFO: [mpeg2enc] New Sequence every 9999 Mbytes
INFO: [mpeg2enc] Assuming non-video stream of 260 Kbps
INFO: [mpeg2enc] Search radius: 16
INFO: [mpeg2enc] GOP SIZE RANGE 9 TO 15
INFO: [mpeg2enc] Setting colour/gamma parameters to "PAL B/G"
INFO: [mpeg2enc] Progressive format frames = 0
INFO: [mpeg2enc] Using default unmodified quantization matrices
INFO: [mpeg2enc] Buffering 39 frames
INFO: [mpeg2enc] SETTING AltiVec for QUANTIZER!
INFO: [mpeg2enc] SETTING AltiVec for MOTION!
INFO: [mpeg2enc] SETTING AltiVec for TRANSFORM!
INFO: [mpeg2enc] SETTING AltiVec for PREDICTION!
number 2881
.75 total act=378110.1
number 3021
ber 44612
e number 44622
822 0 0%
umber 48162
e number 58929
es)
324 0 0%
ds_fill_buffer: EOF reached (stream: audio)
ds_fill_buffer: EOF reached (stream: video)
EOF code: 1
Uninit audio filters...
[libaf] Removing filter dummy
[libaf] Removing filter format
uninit audio: mp3lib
uninit video: ffmpeg
DEMUXER: freeing demuxer at 0x1833000
Exiting... (End of file)
INFO: [yuvscaler] End of stream!
INFO: [yuvscaler] Normal exit: end of stream with frame number 106053!
INFO: [mpeg2enc] Guesstimated final muxed size = 855094870
wait, encoding to mp2 audio with mp2enc...
INFO: Opened WAV file, freq = 48000 Hz, channels = 2, bits = 16
INFO: format = 0x1, audio length = 814473216 bytes
INFO: slots/frame = 480
INFO: frac SpF=0.000, tot bitrate=160 kbps, s freq=48.0 kHz
INFO: System is big endian
INFO: Avg slots/frame = inf; b/smp = inf; br = inf kbps
INFO: Encoding with psychoacoustic model 2 is finished
INFO: The MPEG encoded output file name is "/Volumes/Video/Vampires/VH/VH1.avi.ff.mpa"
INFO: [mplex] mplex version 2.2.2 ($Date: 2003/05/13 20:27:15 $)
INFO: [mplex] File /Volumes/Video/Vampires/VH/VH1.avi.ff.mpv looks like an MPEG Video stream.
INFO: [mplex] File /Volumes/Video/Vampires/VH/VH1.avi.ff.mpa looks like an MPEG Audio 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: Video stream e0 (/Volumes/Video/Vampires/VH/VH1.avi.ff.mpv)
INFO: [mplex] VIDEO STREAM: e0
INFO: [mplex] Frame width : 352
INFO: [mplex] Frame height : 480
INFO: [mplex] Aspect ratio : 16:9 display
INFO: [mplex] Picture rate : 29.970 frames/sec
INFO: [mplex] Bit rate : 1800000 bits/sec
INFO: [mplex] Vbv buffer size : 229376 bytes
INFO: [mplex] CSPF : 0
INFO: [mplex] Scanning for header info: Audio stream c0 (/Volumes/Video/Vampires/VH/VH1.avi.ff.mpa)
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 : 20480 bytes/sec (160 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] SYSTEMS/PROGRAM stream:
INFO: [mplex] rough-guess multiplexed stream data rate : 1994496
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] Video e0: buf= 237568 frame=000000 sector=00000000
INFO: [mplex] Audio c0: buf= 4096 frame=000000 sector=00000000
INFO: [mplex] Scanned to end AU 106052
INFO: [mplex] STREAM e0 completed @ frame 106052.
INFO: [mplex] STREAM c0 completed @ frame 176750.
INFO: [mplex] Multiplex completion at SCR=381785380.
INFO: [mplex] Video e0: buf= 237568 frame=106052 sector=00369215
INFO: [mplex] Audio c0: buf= 1696 frame=176750 sector=00042001
INFO: [mplex] VIDEO_STATISTICS: e0
INFO: [mplex] Video Stream length: 740089230 bytes
INFO: [mplex] Sequence headers: 7342
INFO: [mplex] Sequence ends : 1
INFO: [mplex] No. Pictures : 106052
INFO: [mplex] No. Groups : 7342
INFO: [mplex] No. I Frames : 7342 avg. size 12058 bytes
INFO: [mplex] No. P Frames : 28340 avg. size 8042 bytes
INFO: [mplex] No. B Frames : 70371 avg. size 6020 bytes
INFO: [mplex] Average bit-rate : 1673200 bits/sec
INFO: [mplex] Peak bit-rate : 2413200 bits/sec
INFO: [mplex] BUFFERING min 17 Buf max 137669
INFO: [mplex] AUDIO_STATISTICS: c0
INFO: [mplex] Audio stream length 84840480 bytes.
INFO: [mplex] Syncwords : 176751
INFO: [mplex] Frames : 176751 padded
INFO: [mplex] Frames : 0 unpadded
INFO: [mplex] BUFFERING min 19 Buf max 479
INFO: [mplex] MUX STATUS: no under-runs detected.
INFO: dvdauthor creating VTS
STAT: Picking VTS 01
STAT: Processing /Volumes/Video/Vampires/VH/VH1.avi.ff.mpg...
WARN: attempt to update tv format from ntsc to pal; skipping
STAT: VOBU 16 at 1MB, 1 PGCS, 0:00:07
STAT: VOBU 32 at 3MB, 1 PGCS, 0:00:15...snip...
...STAT: VOBU 7328 at 802MB, 1 PGCS, 0:58:51
STAT: VOBU 7342 at 817MB, 1 PGCS, 0:58:58
INFO: Generating VTS with the following video attributes:
INFO: TV standard: ntsc
INFO: Aspect ratio: 16:9
INFO: Resolution: 352x480
INFO: Audio ch 0 format: mp2/2ch, 20bps
STAT: fixing VOBU at 1MB (17/7342, 0%)
STAT: fixing VOBU at 3MB (33/7342, 0%)...snip...
...STAT: fixing VOBU at 800MB (7313/7342, 99%)
STAT: fixing VOBU at 802MB (7329/7342, 99%)
STAT: fixed 7342 VOBUS
INFO: dvdauthor creating table of contents
scanning /Volumes/Video/Vampires/VH/VH1.avi.ff.mpg.DVD/VIDEO_TS/VTS_01_0.IFO
1.20% done, estimate finish Thu Oct 7 04:17:00 2004
2.39% done, estimate finish Thu Oct 7 04:16:18 2004...snip...
... 97.87% done, estimate finish Thu Oct 7 04:16:16 2004
99.07% done, estimate finish Thu Oct 7 04:16:17 2004
Total translation table size: 0
Total rockridge attributes bytes: 0
Total directory bytes: 4096
Path table size(bytes): 42
Max brk space used 0
418912 extents written (818 Mb)
Encoding completed on Thu Oct 7 04:16:17 EDT 2004
Note the
INFO: [mpeg2enc] Frame rate code: 4 = 30000.0/1001.0 (NTSC VIDEO)
&
INFO: [mplex] Picture rate : 29.970 frames/sec
that I highlighed. A bug?


Input #0, mpeg, from '/Volumes/Video/Vampires/VH/VH1.avi.ff.mpg':
Thu Oct 7 04:36:51 EDT 2004
Duration: 01:10:42.0, bitrate: 1616 kb/s
Stream #0.0: Video: mpeg2video, 352x480, 29.97 fps
Stream #0.1: Audio: mp2, 48000 Hz, stereo, 160 kb/s
Output #0, vob, to '/Volumes/Video/Vampires/VH1.avi.ff.mpg.ff.mpg':
Stream #0.0: Video: mpeg2video (hq), 352x480, 29.97 fps, q=1-8, 1800 kb/s
Stream #0.1: Audio: mp2, 48000 Hz, stereo, 160 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
[mpeg2video @ 0x331210]rc buffer underflow
bench: utime=1982.790s
video:777633kB audio:82852kB global headers:0kB muxing overhead 1.354415%
Encoding completed on Thu Oct 7 05:02:28 EDT 2004

I need more coffee....

[major]

Apparently, you used mpeg2enc with "Decode with mplayer". You should use "Decode with Quicktime" to minimize sync problems with NTSC material.

Is your source camera, or film?

[TugBoat]

Yep, I used the decode with mPlayer. I'm still trying to understand the mpeg2enc results. Apparently it gave me a video track that was encoded at 23.98 and flagged to play at 29.97? The file was an AVI that plays perfectly in everything.
____________________________
OK. I had a brainstorm and opened the mpeg2enc encoded mpv in Hexeditor. It was set for 29.97. However, the only framerate that results in the correct length in QT is 25. It was originally 25. I told it to encode at 29.97, just like last time. It also says 29.97 in the progress info. Why did it encode at 25??????
From above:
NFO: [yuvscaler] frame rate: 25.000 fps
INFO: [yuvscaler] Scaling ratio for width is 17 to 11
INFO: [yuvscaler] and is 19 to 30 for height
INFO: [yuvscaler] output: frame size: 352x480 pixels (253440 bytes)
INFO: [yuvscaler] output: frame rate: 25/1 fps (~25.000000)
INFO: [yuvscaler] output: sample aspect ratio: ?
INFO: [mpeg2enc] Selecting SVCD output profile
INFO: [mpeg2enc] Assuming norm PAL
++ WARN: [mpeg2enc] Specified display frame-rate 29.97 will over-ride
++ WARN: [mpeg2enc] (different!) frame-rate 25.00 of the input stream
++ WARN: [mpeg2enc] Generating dummy SVCD scan-data offsets to be filled in by "vcdimager"
---------------------------------------------
I have given up with using the audio from the encodes. Many of them come out 1/2 to one second short at the end. I've found it's easier just to open the original in QT and export as AIFF. Then, doctor that in Peak and toss it to A.Pack. I haven't had a sync problem yet. But there's absolutely nothing I can do with a video track like the one I just received. If I try the 3:2 thing, I get a warning in DVDSP and then the chapter markers do weird things like flashback to a previous frame when the playhead passes the marker. Weird.

So how do I get mpeg2enc to give me a 29.97fps track at Half D-1? I really don't want to use it. It took almost 4 hours to do that 70 minute track. ffmpeg would have done it in about 70 minutes and given better quaility. I'll probably wait until tonight, around bedtime, if I'm going to run it again 8)