search for: remux

Hi there Thanks Thomas. I was hoping to avoid remuxing as my objective is to run an extremely lightweight server. Just tested and the CPU runs between 9% and 23% for a lecture of 90 minutes - took 18sec. Yes it's a lightweight server, but like I said, that's the objective, and quite a nice challenge :-) CPU = cost and if you have to remux fo...

> Is there any way to understand exactly how it is invalid? I can replicate > this corruption simply by adding large album art to any ogg file with the > latest release of MediaMonkey. The second page is corrupt. The basic structure looks correct, first guess would be bad checksum. I'll look more closely in just a bit. This might explain why some players might accept it--- if

...d--- the checksum on the second page (the comment page where > the album art was added) is incorrect. Vorbis players are not allowed > to decode any stream in which one of the setup headers is corrupt, and > a bad checksum counts as corrupt. > > Unfortunately, this means none of the remuxing ogg tools in our > toolchains will touch those pages either; they will remux and fix most > problems with valid pages, but a bad checksum usually means the page > is toast, so they won't try. > > Monty >

Dear all I am streaming live with webm with ffmpeg to icecast 2.4.2. After the stream ends, I am unable to determine the duration of the file using ffprobe or mediainfo. Not sure but it seems that this has to do with headers? Should icecast be writing the duration into the header or should this somehow be passed from ffmpeg? The requirement is really to determine the duration of the streamed

Dear all I am streaming live with webm with ffmpeg to icecast 2.4.2. After the stream ends, I am unable to determine the duration of the file using ffprobe or mediainfo. Not sure but it seems that this has to do with headers? Should icecast be writing the duration into the header or should this somehow be passed from ffmpeg? The requirement is really to determine the duration of the streamed

> not CMML, but the algorithm for remuxing from time offsets, which is > specified in the annodex Internet-Draft. This basically describes how Ah, yes, and CMML supplies a way to specify addresses which are then interpreted by this algorithm. Have I got that right ?

...mine the duration of the streamed > event (i.e. not radio). I'm not sure how to interpret this, there seem to be some unstated assumptions, as e.g. radio broadcast has the same fundamental issues. Nevertheless there is a trivial solution to address a file that is missing such information: remux it. This does not change the payload in any way, the Video and Audio (and any other) bit-streams will not be changed. Only the WebM container information gets rewritten. If there are malformed portions of the stream (caused by e.g. CPU starved encoder or network stall), then those might get removed...

...es me trouble since then the pages are not properly placed with the other vorbis audio pages, leading to warnings in oggz-validate, telling me that the theora packets are not well-ordered. The streams look good otherwise, in particular, the warning disappears if I extract them with oggzdump and remux then with oggzmerge. I can also see in the resulting stream that the theora pages are well-muxed with the vorbis pages in this case.. Am I missing something ? I can provide more details if needed. Thanks for your help ! Romain

...the second page (the comment page where >> the album art was added) is incorrect. ?Vorbis players are not allowed >> to decode any stream in which one of the setup headers is corrupt, and >> a bad checksum counts as corrupt. >> >> Unfortunately, this means none of the remuxing ogg tools in our >> toolchains will touch those pages either; they will remux and fix most >> problems with valid pages, but a bad checksum usually means the page >> is toast, so they won't try. >> >> Monty >> > _________________________________________...

Hi, All!!! I am at last added some GStreamer support to the Souffleur, and I am already read this manuals: - http://pygstdocs.berlios.de/ - http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/index.html But it's steel hard for me to understand (or maybe I something missed) how it work. :( For example: I don't know where to search info on how to load additional info on

On Thu, Feb 21, 2008 at 9:00 PM, ogg.k.ogg.k@googlemail.com < ogg.k.ogg.k@googlemail.com> wrote: > > If you have an application-specific need for exact font data, then I > think > > the mechanism for retrieving this data should lie in your application, > and > > not in the media format that you're using for media data. I would have > said > > the same

> Some of the things you talk about were not solved at the CMML level, but > rather through using different Ogg > logical bitstreams. While this is possible to do it this way (and probably a good idea for the examples like a clock in a corner), it implies that all the placements and logically different "items" are known at the start of the stream (since the Ogg spec says a

...oogle evaluations are due at the end of June. You can rework it to use gstreamer properly later. That just leaves getting playback and scrubbing working. You might look at Andy Wingo's theora clip trimmer for an example of that: http://webcvs.freedesktop.org//gstreamer/gst-python/examples/remuxer.py There's also thoggen, but I don't think that's been ported to gstreamer 0.10, which is definitely what you should be using. http://thoggen.net/svn/ Hope that helps, and looking forward to seeing souffleur play video! -r

...so we define a way to mark relationships with other > streams. > The value of each of these is an Ogg stream serial number. perhaps an ID (labelled by Content-ID or similar) is more robust. By the ogg spec, serialnos need to be changed when chaining etc., which would further complicate the remuxing of content with skeleton. > Substitutes: <serialno> > Parallels: <serialno> my proposal for these stems from Debian package relationships, where Provides, Depends, Recommends, Suggests, Conflicts are defined locally to each package. In aggregate (considering the whole unive...

On Thu, Feb 28, 2008 at 1:53 AM, Ralph Giles <giles@xiph.org> wrote: > On 27-Feb-08, at 10:44 PM, Conrad Parker wrote: > > > Sure: I'm thinking about Ogg demuxers and seeking implementations. > > These need to know the framerate in order to be able to interpret the > > granulepos in terms of time. If they did not have to extract that from > > the

...granule_rate applies to when a granule_shift is present[2]. Is it the whole number or the higher word. If we assume it is the higher word, i believe the granulerate would need to be 2*(1<<9)*fps_n/fps_d; in order to allow dumb tools to get things vaguely right. Ie, if you were to perform a remux by: foreach logical_stream s: foreach page with GP64 != 0xffff_ffff_ffff_ffff: page.muxing_time <- granule_rate * page.GP64 output_order <- sort_and_interleave (all logical_streams) using x.muxing_time That would work for say dirac and vorbis i think and end up with a reasonable orde...

hello theora-list, i'd like to edit (especially crop) theora files I downloaded here and there. But as far as I know, there is no theora editor. Is there a cli theora files editing ? How could I export .ogg files into whatever format that i can then edit with software such as avidemux ? thanks very much thomas

Hi All Is it a possible case that an ogg file contains VP8 frames. I know ogg file generally contains vorbis, theora frames. Recently I came across an ogg file that contains OPUS frames. Is there any tool, that can take a webm file as input, and output an ogg file with preferably only video (no audio) frames. Please let me know. Thanks Austin -------------- next part -------------- An HTML

.../libannodex-0.6.2.tar.gz New in this release: * added new anx_get_duration() and anx_get_bitrate() API calls * added new anx_get_clip_time_by_id() API call * added new anx_get_mode() API call (ticket:92) * added duration and bitrate display to anxinfo tool * added --id argument to anxed, for remuxing from named offset * fix some floating point rounding errors which caused clips to be served about 0.1s late * valgrind-induced cleanups in anxgrep * Closed tickets: #78: broken importing of anxv2 files #88: offset links are screwy when importing some old files #94: some time offse...

Hello all, I have been trying to play the Guadec Theora files ( http://stream.fluendo.com/archive/6uadec/ ) on Windows with no success. At first I thought it was just the machine which I was trying it on, but I now have seen another machine play other Theora files (Systm, Ubuntu Below Zero) without problems, but treat Guadec as just being audio files. I do also have another machine here which