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Questions tagged [mpeg]

MPEG - Class of Compression standards and related algorithms, tools and systems

MPEG is a name for (set) of standards defined for Audio, Video and it's transmission and is majorly used in Television Broadcast, Internet streaming and VCD/DVD based distribution.

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RTP Stream... MPEG-2 or MPEG-4?

I'm using RTP TS (Payload 33) to stream some video files in MPEG-2 and MPEG-4, and then perform some tasks over them. How could I know what type of video (MPEG-2 o MPEG-4) is inside the RTP stream I receive? Is there any header or field which…
Javi
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Video codec: determine type of macroblock

In my video codec I have two types of frames: a frame can either be a ref frame (something like JPEG) or a delta frame. Delta frame is also like JPEG but done on difference of current and previous frames. Now I want to define ref/delta info not per…
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Video codec: dealing with delta values

Assume I have a ref (key) frame I encoded. Now I want to inter-predict the next frame called delta frame P. To do that I calculate motion vectors and find diff between compensated P and I. However, this diff can be quite huge in some cases. Given…
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MPEG2(MPEG 2) TS Hardware Interface

Hi I have an mpeg connection that I am trying to read. It has 4 signals. clock, data, valid and sync. Now for some reason I don't see the sync byte when the sync signal is active. I am thinking since there is a sync signal they have eliminated the…
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Convert Flash animation to video

I have a Flash-file with some ActionScript code that loads an RSS-feed and animates the content. Now I need to convert that to a video file to use on an external display. Since the RSS-feed updates quite often, this needs to be automated and…
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MPEG DASH - getting the average throughput/bitrate of VOD stream

I am intending to show the real-time throughput (kbps) of my VOD stream (DASH-MPEG based, see the code below), but the main issue is that I happen to fail at getting MediaPlayer()-based, relevant functions to fetch it in my javascript function…
M. cro
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Extract MPEG7 Visual Descriptors with PHP

I'm a student. I need some descriptors of MPEG7 in PHP which will be used for my research. The descriptors are dominant color, color layout, color structure, scalable color, edge histogram and homogeneous texture. Do you know where can I find PHP…
Yudha Teguh Hartanto
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Add aac single audio to MPEG DASH mpd files

I am trying to add manually to the .mpd file the following code.
Got To Figure
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How to efficiently create H264 mpeg from two clips with known different motion intensity?

Given an audio and an image we create a static image "video" and then append a short clip that has a rather intense motion. Audio and image varies from run to run. Appended animation is always the same. Rendering is done with ffmpeg on a remote…
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Error in clipvalue () in matlab

This work is on the MPEG codec which is supposed to take a YUV file as raw video inout. Following is the code I'm using to convert the YUV file to RGB fileName = 'bus.y4m'; width = 250; height = 250; nrFrame = 10; fileId = fopen(fileName,…
Rohit S
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Error in repmat function while reading mat file in matlab

I'm trying mpeg codec in matlab where a .y4m file is encoded and decoded according to mpeg standards. Here the y4m file is loaded in to the project through the mat file 'fore'. I have created the mat file using the following code mov =…
Rohit S
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Frame rate control of a ts file

I have a ts file, which is created by encoding raw yuv data using x264enc and muxing it with mpegtsmux. And this file contains more than one stream. For example it may contain two video streams, or it may contain two video and one text stream like…
Prasanth Kumar Arisetti
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How to play MPEG-TS videos by DirectShow on Windows 7?

Our application uses IGraphBuilder::RenderFile to build filter graph. On Windows 7, this application can play MPEG-PS videos smoothly, but it cannot open/play MPEG-TS(transport stream) videos. IGraphBuilder::RenderFile returns an error code…
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Unable to play ts file, when pipeline bin has more number of sinks

I would like to play a ts file, which has one or two videos. I created a pipeline, and dynamically linked the elements with demux, whenever a pad arises in callback of demux function. As shown below. if(g_str_has_prefix(pad_name, "video")) { …
Prasanth Kumar Arisetti
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Multiplex a HEVC-Video into a MPEG-Transportstream with FFMPEG

I would like to multiplex a HEVC coded video into a MPEG-Transportstream. I have a Video coded with the x265 Encoder. x265 raw.y4m --output coded.hevc I want to multiplex this Video into an MPEG Transportstream. I tried it among other things this…
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