Problems with VOB file from DVD Recoder

[Kapil Agrawal]

Wally,

You have to debug whats wrong and/or file a bug with the debug logs and your
input file.

Kapil


On Thu, Mar 10, 2011 at 9:45 PM, wally bkg <wb666greene at gmail.com> wrote:

> To: Discussion of the development of and with GStreamer <
>> gstreamer-devel at lists.freedesktop.org>
>> Date: Thu, 10 Mar 2011 11:45:13 +0530
>> Subject: Re: Problems with VOB file from DVD Recoder
>>
>> Hello,
>>
>> You could try using gst-launch filesrc location=./VTS_01_5.VOB !
>> decodebin2 !
>> xvimagesink -v
>>
>> and see what elements are used , that will give you a clue what totem does
>> internally.
>> About the timeline being shown as 1 sec maybe either the timestamping isnt
>> done properly or bug in demuxer.
>>
>> Regards
>> Kapil
>>
>
> Thanks, I did this and it plays nicely, but the verbiage doesn't really
> help me understand anything:
>
> gst-launch filesrc location=./VTS_01_1.VOB ! decodebin2 ! xvimagesink -v
> Setting pipeline to PAUSED ...
> /pipeline0/decodebin20/typefind.src: caps = video/mpeg,
> systemstream=(boolean)true, mpegversion=(int)2
> Pipeline is PREROLLING ...
> /pipeline0/decodebin20/flupsdemux0.sink: caps = video/mpeg,
> systemstream=(boolean)true, mpegversion=(int)2
> /pipeline0/decodebin20/multiqueue0.sink0: caps = video/mpeg,
> mpegversion=(int)2, systemstream=(boolean)false
> /pipeline0/decodebin20/multiqueue0.sink1: caps = audio/x-private1-ac3
> /pipeline0/decodebin20/multiqueue0: max-size-buffers = 5
> /pipeline0/decodebin20/multiqueue0: max-size-time = 2000000000
> /pipeline0/decodebin20/multiqueue0: max-size-bytes = 2097152
> /pipeline0/decodebin20/multiqueue0.src0: caps = video/mpeg,
> mpegversion=(int)2, systemstream=(boolean)false
> /pipeline0/decodebin20/multiqueue0.src1: caps = audio/x-private1-ac3
> /pipeline0/decodebin20/a52dec0.sink: caps = audio/x-private1-ac3
> /pipeline0/decodebin20/a52dec0.src: caps = audio/x-raw-float,
> endianness=(int)1234, width=(int)32, channels=(int)2, rate=(int)48000,
> channel-positions=(GstAudioChannelPosition)<
> GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
> GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT >
> /pipeline0/decodebin20/mpeg2dec0.sink: caps = video/mpeg,
> mpegversion=(int)2, systemstream=(boolean)false
> /pipeline0/decodebin20/mpeg2dec0.src: caps = video/x-raw-yuv,
> format=(fourcc)I420, width=(int)720, height=(int)480,
> pixel-aspect-ratio=(fraction)8/9, framerate=(fraction)30000/1001
> /pipeline0/xvimagesink0.sink: caps = video/x-raw-yuv, format=(fourcc)I420,
> width=(int)720, height=(int)480, pixel-aspect-ratio=(fraction)8/9,
> framerate=(fraction)30000/1001
> /pipeline0/decodebin20.src0: caps = video/x-raw-yuv, format=(fourcc)I420,
> width=(int)720, height=(int)480, pixel-aspect-ratio=(fraction)8/9,
> framerate=(fraction)30000/1001
> /pipeline0/decodebin20.src0.proxypad1: caps = video/x-raw-yuv,
> format=(fourcc)I420, width=(int)720, height=(int)480,
> pixel-aspect-ratio=(fraction)8/9, framerate=(fraction)30000/1001
>
> Pipeline is PREROLLED ...
> Setting pipeline to PLAYING ...
> New clock: GstSystemClock
>
>
>
> Since DVD Recorders work to a "standard" it would seem by definition to be
> a bug in the demuxer.
>
> Seeking in VLC does work but its full of video mosaic artifacts while
> "scrubbing" to find a region of interest.  None of the gstreamer based
> applications seem to be able to seek in this file, although they can seek
> smoothly in the VOB file from an "authored" DVD disk.
>
>
> However I should be able to simply use decodebin2 to feed the data to my
> appsink so this could be a usable solution for me.
> Ultimately I'd like to have seeking and perhaps even frame by frame
> forward/backward interaction, but I'm a long way from there right now.
>
>
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>
>


-- 
www.mediamagictechnologies.com (Gstreamer, ffmpeg, Red5, Streaming)
twitter handle: @gst_kaps
http://www.linkedin.com/in/kapilagrawal
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