This is a set of GStreamer 1.0 plugins for Freescale's i.MX platform, which make use of the i.MX multimedia capabilities.

Currently, this software has been tested only with the i.MX6 SoC family.

The software as a whole is currently in beta stage.

These plugins are licensed under the LGPL v2.

• imxvpudec : video decoder plugin
• imxvpuenc_h263 : h.263 encoder
• imxvpuenc_h264 : h.264 baseline profile Annex.B encoder
• imxvpuenc_mpeg4 : MPEG-4 encoder
• imxvpuenc_mjpeg : Motion JPEG encoder
• imxipuvideosink : video sink using the IPU to output to Framebuffer (may not work well if X11 or Wayland are running)
• imxipuvideotransform : video transform element using the IPU, capable of scaling, deinterlacing, rotating (in 90 degree steps), flipping frames, and converting between color spaces
• imxg2dvideosink : video sink using the GPU's 2D core (through the G2D API) to output to Framebuffer (may not work well if X11 or Wayland are running)
• imxg2dvideotransform : video transform element using the GPU's 2D core (through the G2D API), capable of scaling, rotating (in 90 degree steps), flipping frames, and converting between color spaces
• imxpxpvideosink : video sink using the PxP engine to output to Framebuffer (may not work well if X11 or Wayland are running)
• imxpxpvideotransform : video transform element using the PxP engine, capable of scaling, rotating (in 90 degree steps), flipping frames, and converting between color spaces
• imxeglvivsink : custom OpenGL ES 2.x based video sink; using the Vivante direct textures, which allow for smooth playback
• imxv4l2src : customized Video4Linux source with i.MX specific tweaks
• imxuniaudiodec : audio decoder plugin based on Freescale's unified audio (UniAudio) architecture
• imxmp3audioenc : MP3 audio encoder plugin based on Freescale's MP3 encoder

You'll need a GStreamer 1.2 installation, and Freescale's VPU wrapper library (at least version 1.0.45).

This project uses the waf meta build system. To configure , first set the following environment variables to whatever is necessary for cross compilation for your platform:

• CC
• CFLAGS
• LDFLAGS
• PKG_CONFIG_PATH
• PKG_CONFIG_SYSROOT_DIR

Then, run:

./waf configure --prefix=PREFIX --kernel-headers=KERNEL-HEADER-PATH

(The aforementioned environment variables are only necessary for this configure call.) PREFIX defines the installation prefix, that is, where the built binaries will be installed. KERNEL-HEADER-PATH defines the path to the Linux kernel headers (where linux/ipu.h can be found). It is currently unfortunately necessary to set this path if linux/ipu.h is not in the root filesystem's include directory already. (Not to be confused with the ipu.h from the imx-lib.) Without this path, the header is not found, and elements using the IPU will not be built.

If gstreamer-imx is to be built for Android, add the --build-for-android switch:

./waf configure --prefix=PREFIX --kernel-headers=KERNEL-HEADER-RPATH --build-for-android

Note that for Android, plugins are built as static libraries.

Once configuration is complete, run:

./waf

This builds the plugins. Finally, to install, run:

./waf install