Ingex Studio - Multi-camera Tapeless Recording

Ingex Studio is a commodity PC based multi-camera capture, transcode and MXF wrapping system. Studio SDI sources are first captured using SDI I/O cards in a commodity PC. The uncompressed video is transcoded in real-time using software codecs and then wrapped in MXF and made available immediately for editing by MXF-based editors such as Avid Media Composer.

Hardware requirements

The Ingex developers have used the DVS Centaurus II SDI I/O boards to develop and test the Ingex software. The SDI hardware capture software is isolated to the dvs_sdi.cpp source file so adding support for other capture hardware would require replacing this source file with one supporting the new hardware. A simulated hardware capture program can be used to test Ingex Studio without requiring any special SDI capture hardware, by running the dvs_dummy process instead of dvs_sdi.

The PC hardware required depends greatly upon how many channels will be captured and how many software transcodes will be run together in real-time. The following table can be used as a rough guide, but extensive testing will be necessary to prove real-time capability and overall reliability.

Real-time transcodesCPUsMemory
4 x DVCPRO50, 4 x 20:1 JPEG4 cores, e.g. Intel Core2 QX67004GB DDR2 667MHz

System configuration

We have found xfs to be the most efficient filesystem when writing multiple streams of video to disk. A benchmarking tool disk_rw_benchmark.c is available to help compare filesystems and disk configurations.

Installing Ingex Studio

The authors of Ingex develop and test using openSUSE 11.1. Although we plan to provide RPMs for the various modules that make up the software, currently it needs to be built from the source code. This is available from cvs or as release packages for download.

Instructions on how to build and install the Ingex Studio software are in the file below.

Instructions on how to configure the Ingex Studio software are in the file below.

Instructions for using the Ingex Studio software are in the file below.

The following dependencies (not part of opensuse) are needed for the build.

The additional packages required for the installation are available as RPMs and can be found below.

Get Ingex - video capture and transcoding at SourceForge.net. Fast, secure and Free Open Source software downloads