similar to: Bitrate expectations for encoding or decoding

Hi everybody, me again. I'm trying to write my own VFW-like dll... It doesn't need to do much. 1.) compress a single frame and give it back to the host application 2.) host applications sends the frame 3.) client application receives frame 4.) client application tells the dll to decompress the data So if I try to do this, something is going wrong... Perhaps someone could have a look at my

Hello, I'm not sure if this list is the proper place for this post; please correct me if it is not. I am attempting to use libtheora and I have been looking through the examples in the distribution Excerpt from encoder_example.c -- case 'V': video_r=rint(atof(optarg)*1000); if(video_r<45000 || video_r>2000000) { fprintf(stderr,"Illegal

Hello everyone, I'm currently developing an adaptive videoconferencing application based on Ekiga which uses TFRC as a congestion control mechanism to adapt the video encoding rate according to the quality of the network experienced. My goal was to use the open-source Theora codec for video transmission. Unfortunately, it seemed that Theora 1.0 did not properly implement any correct CBR mode.

Hi all. I would really like to use Theora for the commercial product I work on... It's a Linux based DVR. Actually we use ffmpeg to produce MPeg4 short clips from 4 BNC channels in CIF resolution. I made a small module for our project that uses Theora... but I see that it gets a lot of CPU :( So I'm here to ask for any kind tips to reduce the CPU usage. - Hardware... do you think there

Hi all. In my test application I saw that the encoding process with Theora is too CPU expensive ( compared to FFmpeg - MP4 ) ... Perhaps I'm using wrong parameters: ti.fps_numerator = fps * 11 + 1; // var framerate ti.fps_denominator = 11; ti.aspect_numerator = 1; ti.aspect_denominator = 1; ti.colorspace = OC_CS_ITU_REC_470BG; //

I am trying to write a sample app that uses Theora for encoding/decoding a network video stream. Unfortunately, I keep running into this error: Run-Time Check Failure #3 - The variable 'MVect' is being used without being defined. It always happens on decryption, line 467 in decode.c. The issue is that CodingMethod is equal to 5 (CODE_GOLDENFRAME), which doesn't initialize the

I've got my encoder working now... and i put a proeprty page interface to allow the user to set a few encoding paramters to start off with... but changing the paramters doesn't seem to make barely any difference... These are the defaults i'm using... mTheoraInfo.target_bitrate=400000; mTheoraInfo.quality=30; mTheoraInfo.dropframes_p=0; mTheoraInfo.quick_p=1;

Hi! Some background: I am trying to create an application that would encode video taken by USB camera using Theora and then send it to the client. I have almost succeeded, but I have one problem. When I grab video frames from the camera and encode them they form 4KB OGG pages, then I send them over TCP/IP to the client application. Since I want to achieve as small latency as possible I

Hi There, i want to stream some pictures out of my application using the Theora codec. I can stream to a socket or a file. The current work based on the png2theora example. Something while enconding went wrong: I can see the whole video in VLC, but the complete duration of the file will not be displayed. If i play the video in Firefox, the first 2 seconds will not be played. I think the

Unity3D seems to be working in wine fairly well, despite a few non-critical problems. One such problem is that when a .blend is imported, Unity complains with "Blender could not be found" and instructs me to "Make sure that Blender is installed and the .blend file has Blender as its 'Open with' application!" I installed the windows version of Blender in wine (first

Hello, Today I was benchmarking DV video on a AMD64: skinkie@zwartepiet ~ $ cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 47 model name : AMD Athlon(tm) 64 Processor 3500+ stepping : 0 cpu MHz : 2210.197 cache size : 512 KB fpu : yes fpu_exception : yes cpuid level : 1 wp : yes

Hi, i know this mailing list is basically dead but i try anyways because i've got a problem and i'm nearly desperate. I'm writing a realtime voice chat application, with a centralized server (dedicated) architecture, using C# (dedicated server is a .net core app while for the client i'm using C# to script the game engine Unity3D). For the encoding/decoding part i'm using

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

Michael, > I had a bug report that it was crashing though - I haven't looked into it > yet. Might be only with mis-configured setups. > > Just specify (instead of <quality>3</quality>), any of: > <nominal-bitrate>value in bits per seconds</nominal-bitrate> > <maximum-bitrate>val</maximum-bitrate> >

At 06:34 PM 7/29/02 +1000, you wrote: >I have got ices running with quality -1 (and on my roommates crappy computer >speakers it sounds damn near the real thing - better than FM radio anyway)... > >I'm just wondering if it's posible to configure it with a maximum bitrate, or >a nominal bitrate. i.e. to use managed bitrates instead of quality (I know >it's a no no,

At 06:29 PM 7/29/02 -0400, you wrote: >Michael, > >> I had a bug report that it was crashing though - I haven't looked into it >> yet. Might be only with mis-configured setups. >> >> Just specify (instead of <quality>3</quality>), any of: >> <nominal-bitrate>value in bits per seconds</nominal-bitrate> >>

Hello! I'm new to wine development - it pretty much has worked out of the box with everything I needed. :) I've been looking however to improve my current development workflow when working with Unity 3D (can be downloaded for free at http://www.unity3d.com). I've tried using it with Wine a couple of times - to no avail. My current workflow involves then running a virtual machine (and

Greetings! We are building a project in which we need Wine to allocate its memory in a shared memory that would be accessible to our custom sub-processes. We use Wine to run Unity3D. So far so good. Now, the idea is to run 3 independent sub-processes, each with its own graphical context (one per GPU on a 3 GPU machine), which would need to have access to client-side buffers (indices, normals,

Ok I think we have some common ground - CSE should choose the aliased pointer over the non-aliased one because we don't want the no-aliasing information to creep outwards from the inlined callsite. I'll put together a patch in the coming days and add y'all as reviewers so you get visibility. Cheers, -Neil. On Wed, Jan 22, 2020 at 4:47 PM Jeroen Dobbelaere < Jeroen.Dobbelaere at

Hello, I wrote a theora video encoder based on etheora (and the examples provided with it) for Processing IDE (processing.org). I have some problem with the quality of encoded frames. eg. http://poux.be/tmp/movie.ogg And when I play the movie with mplayer or totem, the video resolution is changed from 640x480 to 854x480 (when i use ETHEORA_ASPECT_NORMAL in etheora_enc_setup). And if I try to