[MEncoder-users] Problem with "Too many video packets in the buffer"

[Sire CP]

Upon further research, it turned out that not only does the video get
dumped at half it's framerate, the video, which has played half-way,
simply cuts off after the audio track has finished!

Greetings,
Jimmy

On 5/16/10, Sire CP <sire.cp at gmail.com> wrote:
> Dear Mencoder-users,
>
> I have recently started to dump all my dvd's to my hard drive as .vobs
> with vobsub subtitles in order to be able to have a backup of my movie
> / series collection, without wasting my precious disk space on storing
> those unnecessary advertizements and extra audio tracks (who wants to
> watch a movie in badly dubbed Spanish, Italian or German when it is
> English originally?
>
> I wrote up a nice script that does all the hard work for me - and so
> far, I have backed up a reasonable amount of dvds.
>
> But today I ran into a problem, I have searched, read, searched some
> more, and could not come to a solution myself. Hence I subscribed to
> your list, perhaps somebody here knows 'the answer'?
>
>
> Anyways. The problem:
>
> - I am trying to dump an European PAL DVD, Star Trek TNG Season 1 Disc
> 2 to be precise.
> - This DVD contains interlaced video at a resolution of 720x576, at 25fps
> - It dumps the first track all nicely, but when it dumps the second
> track, things start to go bad.
> - I have dumped more interlaced material, but this problem never
> occurded to me before. I have already dumped Disc 1 of that series,
> which went without any problems at all.
>
> I get a lot of these "Too many video packets in the buffer: (4096 in
> 8260213 bytes)." errors.
>
> The dumped video also seems to play back at half its speed. I have
> tried adjusting the framerate, to no avail. I also noticed that,
> instead of the regular ~1.5GB per file, this file is ~820MB.
>
>
> I use the following command to dump the video/audio:
>
> mencoder dvd://"$TITLES_COUNT" -dvd-device "$MOUNT_DIR" -ovc copy -oac
> copy -alang en -of mpeg -mpegopts format=dvd:tsaf -vf
> pp=softskip:harddup -mc 0 -noskip -o "$DUMP_DIR""$DUMP_FILE".vob;
>
> I think the variable names speak for themselves, those are not
> important for this case anyway.
>
> This is my full mencoder output, well, without the millions of "Too
> many packets..." errors:
>
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> MEncoder SVN-r29796-4.3.4 (C) 2000-2009 MPlayer Team
> There are 4 titles on this DVD.
> There are 1 angles in this DVD title.
> audio stream: 0 format: ac3 (stereo) language: de aid: 128.
> audio stream: 1 format: ac3 (5.1) language: en aid: 129.
> audio stream: 2 format: ac3 (stereo) language: es aid: 130.
> audio stream: 3 format: ac3 (stereo) language: fr aid: 131.
> audio stream: 4 format: ac3 (stereo) language: it aid: 132.
> number of audio channels on disk: 5.
> subtitle ( sid ): 0 language: da
> subtitle ( sid ): 1 language: de
> subtitle ( sid ): 2 language: en
> subtitle ( sid ): 3 language: es
> subtitle ( sid ): 4 language: fr
> subtitle ( sid ): 5 language: it
> subtitle ( sid ): 6 language: nl
> subtitle ( sid ): 7 language: no
> subtitle ( sid ): 8 language: sv
> subtitle ( sid ): 9 language: en
> number of subtitles on disk: 10
> success: format: 2  data: 0x0 - 0x6e9ec800
> Selected DVD audio channel: 129 language: en
> MPEG-PS file format detected.
> VIDEO:  MPEG2  720x576  (aspect 2)  25.000 fps  8000.0 kbps (1000.0
> kbyte/s)
> [V] filefmt:2  fourcc:0x10000002  size:720x576  fps:25.000  ftime:=0.0400
> ==========================================================================
> Opening audio decoder: [liba52] AC3 decoding with liba52
> AUDIO: 48000 Hz, 2 ch, s16le, 448.0 kbit/29.17% (ratio: 56000->192000)
> Selected audio codec: [a52] afm: liba52 (AC3-liba52)
> ==========================================================================
> PACKET SIZE: 2048 bytes, deltascr: 43885
> videocodec: framecopy (720x576 24bpp fourcc=10000002)
> audiocodec: framecopy (format=2000 chans=2 rate=48000 bits=16
> B/s=56000 sample-1)
> Writing header...
> INITV: 0.200, 0.160, fps: 25.000
> Pos:   0.0s      1f ( 0%)  0.00fps Trem:   0min   0mb  A-V:0.000 [0:0]
> [....]
> Pos:  31.9s    797f ( 1%)  0.00fps Trem:   1min 747mb  A-V:0.000 [1774:448]
> Too many video packets in the buffer: (4096 in 8260412 bytes).
> Maybe you are playing a non-interleaved stream/file or the codec failed?
> For AVI files, try to force non-interleaved mode with the -ni option.
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
>
> I hope anyone around here can help me with this strange nasty issue,
> your help would be very much appreciated.
>
> Greetings,
> - Jimmy
>