search for: demuxer

Hi, I want to convert a function pointer call in the IR of MPlayer to a function call. For example, I have the following line: ... %10 = tail call i32 %7(%struct.demuxer* nonnull %0, i32 %1, i8* %2) #7, !dbg !863222 ... I want to set the target which is stored in %7 to a real function called "demux_lavf_control()" with the following definition: ... define internal i32 @demux_lavf_control(%struct.demuxer.2657* nocapture readonly, i32, i8* nocapture) #0 !db...

I am putting together an ogg mux/demux application which uses two logical streams. One is a vorbis stream, the other is some application specific data. This came together really quickly, following the ogg/vorbis documentation it took only a few hours to get it up and running. Just a small question... My application stream is currently running as a continuous stream but really I want it to be

...wnstream allocators it frees up a spot for an upstream filter, it's thread unblocks and fills the space etc. Directshow requires start and end times for all samples. Demuxing ======= Ok, so given that the graph has to be built before data is passed downstream, there is a problem. How can the demuxer know what filters to connect to (ie what the streams are) ? The demux needs to read ahead enough to find the BOS pages. Now we know how many streams there are. How does it know what kind of streams they are ? It has to be able to recognise the capture patterns of every possible codec. So a "co...

Hallo oggs, i googled it but still can't find any answer: how can i set default audio track? I transcode my dvds to ogg, i use gst-launch for it: gst-launch filesrc location=stream.dump ! mpegpsdemux name=demux \ oggmux name=mux ! filesink location=out.ogg \ demux.audio_80 ! a52dec mode=2 ! audioconvert ! audioresample ! audio/x-raw-float,rate=44100,channels=2 ! audiorate ! \ taginject

Hello, I need to demux video files created with ffmpeg2theora 0.28+svn18147 I have ogminfo v1.5 and getting this error (ogminfo.c) OGG stream 1 is of an unknown type (bad header?) (ogminfo.c) OGG stream 2 is of an unknown type (bad header?) (ogminfo.c) (a1/serial 1092562206) Vorbis audio (channels 2 rate 48000) Is possible, that ogminfo is older then ffmpeg2theora ? Or what can be the reason?

By browsing on the mailing list I learned that its possible to generate .h263 asterisk friendly files with gstreamer. The script below it's supposed to do just that, however I get error when trying it out locally. gst-launch filesrc location=AstriDevCon_Europe_2006.mov ! qtdemux name=demux ! ffdec_h263 ! videoscale ! video/x-raw-yuv,width=352,height=288 ! ffenc_h263 rtp-payload-size=512 !

...ex connection with the other filter. Just though some people might find them useful even in their early state. There are some limitations to this release. 1) No more than 2 channel audio is supported. 2) Chained multiplexing is not supported. 3) Only a single logical stream can be contained. (The demuxer has a few hard-coded things in it for now) 4) No seeking... i have the code, i just haven't put it in yet... i thought getting it working without first for vorbis and speex is easier. 5) No position information... ie no progress bar... again... the code is here just waiting to be integrated. 6)...

At 09:49 +0100 on 08 May (1336470591), Tim Deegan wrote: > Ccing xen-devel. Actually this time. > At 11:29 -0700 on 07 May (1336390171), Christian Limpach wrote: > > > The current version of Xen allocates the shared page directly > > > in vm memory with other pages (like XenStore page) called > > > special pages. I just begin to hack Xen, so I used the same >

Hello, I would like to "piggy-back" other data in an Ogg/Vorbis I physical stream (i.e. file) in a manner that does not conflict with specifications and existing decoders/players/editors etc. As far as I can see, I have some possible choices: 1 - Chaining a logical bistream at the end. If this is the way to go, two questions arise to begin with: q1a - How to identify this stream in a

Friends, My name is Igor, I am new to this forum. I have a peculiar problem with my OGG/Speex implementation: I encode a short PCM stream in OGG/Speex, but the result can not be read by VLC and MediaInfo <http://mediaarea.net/nn/MediaInfo> reports that the file is too short (240ms). In reality the file contains about 2.7 sec worth of audio. Another interesting thing I noticed is that the

...ent play position which gets increased on every loop and sends the data to the next sink pad (at OggDemux). QueueSeek Buffer: +--# data added at the end +0-1-2-3-4-v------- |#|#|#|#|#| | | | -> unlimited capacity +----|------------- v current play position data will be send to demuxer but not removed from the FIFO Now i managed that the fill level of the buffer is the difference between the size of the data in the FIFO and the current play position. So the play begins if the data is enough and stops if the "watermark" gets below the lowest level. + current pl...

Typically video players will play back the last audio track in a Ogg Theora file, because it is the last one that they see. There is no way to specify which is the "default" audio track and it would not make sense anyway. If you are a German speaker, your "default" would be the German audio track - if you are a native English speaker, it would be the English audio track. So,

Dear members, since two weeks I am stuck, trying to demux a physical ogg stream (theora and vorbis) and play the audio part using vorbisfile. I hope that one of you can give me a hint or point me to additional documentation. I used ogg.h and vorbisfile.h. The way so far: - initializing an ogg_sync_state - inserting data to sync_state using ogg_sync_buffer - when whole page found

Hi, Is it expected that an Ogg logical bitstream might logically serve as the physical bitstream from which other logical bitstreams might be demuxed? I am not sure that I really see the point of doing this, but it would certainly be possible within the current spec. The trouble is that there are any number of ways to do the low-level muxing of several streams into one logical stream, with

Hello, Could you kindly point me to some instruction, how to encode demuxed files (.m2v and .mp2) to .ogg (Theora + Vorbis)? I was trying to use ffmpeg2theora, but I don't know, how to put two files to ffmpeg2theora (one audio an one video) and did not found, how to mux them into one file? Exist a way, how to do two pass encoding? I'm using Ubuntu Fiesty Linux. Thank you, Jiri Navratil

...menting that. Around a year and a > half ago, it began adding the KW-DIRAC stream identifier manually, > since the encoder wasn't producing it any more, followed by the > framerate stored as a rational pair of 32 bit big endian integers, > and using *that* as the bos packet. The demuxer would then strip and > discard this before passing the remaining data to the decoder. > > David and I talked about this today and we agreed gstreamer should be > changed to just use the Dirac sequence header as the Ogg bos packet. > He said we would write some stand alone routine...

Helo. I intend to use OGG audio in DivX movies because its excellent size/quality ratio. I was searching round many forums concering DivX conversion but didn't find satisfatory answer. So I send my question to you directly: 1,I am able to play movie with OGG audio on my PC but not on another one though I have installed last OGG Direct show filters.

Hi, On Thu, Mar 5, 2015 at 2:18 PM, SellBuy Sammamish <sellbuysam at gmail.com> wrote: > Friends, > > My name is Igor, I am new to this forum. > > I have a peculiar problem with my OGG/Speex implementation: I encode a short > PCM stream in OGG/Speex, but the result can not be read by VLC and MediaInfo > reports that the file is too short (240ms). In reality the file

Hi, I've seen several implementations of Ogg demuxing that use a zero granulepos to detect headers. However, I do not recall seeing this in the Ogg docs - is this an abuse that happens to work because Vorbis is timed by end granule, or is it a proper way to check ? Thanks

...the way with other codecs, such as XviD. My main issue with other codecs is that they don't expose a COM interface on their encoding end, which allows me to change encoder settings programmatically (hence my interest in Theora). Along those same lines, does anyone know why the Ogg muxer and demuxer only have input pins and output pins respectively? Those filters are used to read/write Ogg streams from/to a file. It would be awesome if the the muxer filter would offer an output node, where it sends out the Ogg stream samples, which I then could intercept using the sample grabber. Similarl...