Displaying 20 results from an estimated 2000 matches similar to: "Xiph QT Theora Codec"
2016 May 09
2
VDPAU DEINTERLACE
On 09.05.2016 19:37, Ilia Mirkin wrote:
> Mesa only supports the non-spatial temporal deinterlace (deint=3). I'm
> guessing that due to some unfortunate issues, you're no longer getting
> hw accelerated video decoding. Check in vdpauinfo to make sure that
> it's indeed showing the relevant codec as supported. If not, you can
> turn that back on by updating to mesa
2016 May 05
2
VDPAU DEINTERLACE
NVIDIA G98
mesa-dri-drivers-11.2.1-2.20160501.fc22.x86_64
(incl. mesa commit 38fcf7c)
vdpauinfo | grep -i deint
DEINTERLACE_TEMPORAL y
DEINTERLACE_TEMPORAL_SPATIAL -
https://cgit.freedesktop.org/vdpau/libvdpau/tree/include/vdpau/vdpau.h#n3420
#define VDP_VIDEO_MIXER_FEATURE_DEINTERLACE_TEMPORAL ((VdpVideoMixerFeature)0)
/**
* \hideinitializer
* \brief A
2009 Oct 01
1
mixed interlaced content and ffmpeg2theora
dv file from minidv camera - interlaced.
small dv created by imported jpeg images - not interlaced.
seems that when I use ffmpeg2theora with deinterlace switch and reduce
size, it works. But when the only reduction I am doing is to width
(720x480 -> 640x480) the encoder ignores the naturally interlaced bit
and uses the last de-interlaced frame.
Since the small bit made from jpegs is a dv
2006 Jan 03
3
[ANNOUNCE] libshout 2.2 released
libshout 2.2 has just been released. It's a fairly minor update:
* Speex support (this is why it's 2.2 instead of 2.1.1)
* Theora timing fix
* Double-free bug, response parser bug on failed login fixed.
It's at http://www.icecast.org/download.php
2010 Jun 24
2
theora's encoding speed
Is there any way to get better encoding speed out of ffmpeg2theora?
eg: <snip> Duration: 00:57:04.92, <snip> ET: 02:06:24
here is the command:
ffmpeg2theora --soft-target -V303 -v4 -F25 -K25 --croptop 8 --cropleft 2 --cropright 2 -x360 -y288 --deinterlace --aspect 4:3 -H24000 -A56 --optimize "<filename.mpg>"
also the bitrate, 300kbits == 297kb (3 kbit less)
2016 May 09
0
VDPAU DEINTERLACE
Mesa only supports the non-spatial temporal deinterlace (deint=3). I'm
guessing that due to some unfortunate issues, you're no longer getting
hw accelerated video decoding. Check in vdpauinfo to make sure that
it's indeed showing the relevant codec as supported. If not, you can
turn that back on by updating to mesa 11.2.2, or downgrading your
kernel to 4.2 or earlier. (The issue only
2016 May 09
0
VDPAU DEINTERLACE
You can try playing with pstate in /sys/kernel/debug/dri/0/pstate
On Mon, May 9, 2016 at 2:42 PM, poma <pomidorabelisima at gmail.com> wrote:
> On 09.05.2016 19:37, Ilia Mirkin wrote:
>> Mesa only supports the non-spatial temporal deinterlace (deint=3). I'm
>> guessing that due to some unfortunate issues, you're no longer getting
>> hw accelerated video
2010 Nov 15
1
optimization of theora contract job
Theora-devs:
I am in seek of a theora (but possibly vorbis/ogg/ffmpeg) dev to optimize the encoding in a realtime software product.
We do live encoding and transcode into ogg/theora/vorbis at various resolutions and frame rates. The higher resolutions cannot process in realtime and we are pushing the boundaries of hardware (cpu) encoding with the existing theora/ffmpeg.
Right now we have to
2004 Nov 20
0
ffmpeg2theora start and end time support
For last few days I was trying to learn ffmpeg and libtheora API. In the
process, I have modified ffmpeg2theora code to include support for start
time and end time.
ffmpeg2theora -s 60 -e 130 file.avi
will produce file.ogg which will be from 60th to 130th second of input
file (something like -ss and -endpos in mencoder). This is a useful
feature for someone who wants to cut a part of video
2003 Jun 12
3
A/V sync in Theora
Hi,
I've been thinking about how a Theora encoder could be integrated into
mencoder or transcode and I'm not sure whether I understand the A/V sync
strategy of Theora/Vorbis correctly.
When transcoding from some video format (ie MPEG2 or DivX), at least
some images of the video stream will have time stamps, as well as the
fragments of the audio stream. Or at least time stamps can be
2005 Nov 13
3
OggPCM format description, rev 3
> Unfortunately the ALSA API defines a number of formats which are
> in practice extremely rare. In particular, any unsigned int format
> larger than 8 bits. For instance, the only unsigned int type that
> libsndfile supports is unsigned 8 bit.
I expected this, it just seemed like a good starting point to get more
than 7 formats on the table. Specifically I wanted to the logarithmic
2016 May 05
24
[Bug 95282] New: system hang on video playback via vdpau
https://bugs.freedesktop.org/show_bug.cgi?id=95282
Bug ID: 95282
Summary: system hang on video playback via vdpau
Product: xorg
Version: git
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: critical
Priority: medium
Component: Driver/nouveau
Assignee: nouveau at
2009 Jun 14
3
Syncing to vblank for interlaced video modes
Hello,
I'll start by applauding your efforts to make an open source driver for nv hardware. I imagine it is a very difficult task trying to reverse engineer hardware and produce something useful and featureful.
I wish to make a change to the nouveau source. You might say I am considering becoming a nouveau developer. I am one of those crazy nutters who connects my nvidia card directly to
2004 Dec 19
0
[patch] more ffmpeg2theora improvements
Hi,
the attached patch (against current SVN) adds three new options to
ffmpeg2theora: --keyint (set keyframe interval) --smoothness (set the
theora_info::sharpness encoding parameter) and --noautosync (disable the
new frame dropping/duplicating code).
It also fixes a bug with the processing of --cropright that sometimes
segfaulted. The sync adjustment code is now tuned to be more reliable.
BTW
2009 Jun 29
3
oggz-merge.exe
Hi folks,I'm joining this list because I've encountered difficulties with
the ogg tools.
I'm running Windows, and can't find binaries for liboggz tools, such as
oggz-merge.exe
Can someone provide oggz-merge.exe?
So I use ffmpeg (v19289) for muxing
ffmpeg -y -i sync2.ogg -i sync.ogv -vcodec copy -acodec copy sync2.ogv
but the framerate fluctuates wildly on playback, and ogginfo
2005 Nov 08
0
OggYUV
On Wed, Nov 09, 2005 at 10:52:53AM +0800, illiminable wrote:
>
> "fourcc" 's of rgb types
> http://www.fourcc.org/rgb.php
I'm prowd to say that http://wiki.xiph.org/OggRGB supports all of these
losslessly as well as PNG for non-indexed bitmaps. These are video formats,
correct? Not just single frames?
> raw yuv formats only
> http://www.fourcc.org/yuv.php
2009 Jan 09
1
Encoding QT to Theora
Hi,
We're currently editing a video advertizing Firefox and plan to release it
exclusively encoded with Theora during a couple of days (before it hits
YouTube, DailyMotion...).
Editing is done with Final Cut Pro so sources are QT files. What is your
experience of encoding QT to Theora?
For the time being we are not down to testing xiphQT so we're looking for
general advice.
Thank you
2004 Nov 20
0
ffmpeg2theora start and end time support - patch
After posting my previous mail, I realized that i should instead post a
patch against HEAD. This is because v0.12 was released while I was also
changing ffmpeg2theora.c from v0.11. So please use this patch instead and
apply it to version at http://svn.xiph.org/trunk/ffmpeg2theora
Nilesh Bansal
http://www.cse.iitb.ac.in/nilesh/
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Index: ffmpeg2theora.c
2005 Nov 08
1
[Theora-dev] Re: OggYUV
> For a lossless codec, the luxury of a "small number of useful formats"
> may not be advisable. I can't tell you how many times I've had some raw
> data and been completely unable to play it with e.g., mplayer, because
> mplayer did not have an apporpriate fourcc. And mplayer has made up many
> of their own non-standard fourcc's (which not even all of mplayer
2010 Aug 19
2
gstreamer oggmux and variable framerate
Hallo all,
I currently hacking on cheese an got problem with variable framerate
produced by webcams (2-30fps). There is no problem to encode it with
theora, but problem to mux it in ogg. Or at least to play produced file.
There is no problem tu mux it in to matroska.
My question is: should actually ogg support timestamps, also variable
framerate? If yes: it seems to be some where broken.
Here