Hi, we are planning to add support to H.264/MPEG4 encoder inside the i.MX27 to v4l2. It is mainly a hardware module that has the following features: - It needs two input buffers (current frame and previous frame). - It produces a third buffer as output, containing the encoded frame, and generates an IRQ when that happens. - Previous three buffers need contiguous physical memory addresses and probably some alignment requirements. - It needs an external firmware to be loaded in another contiguous memory buffer. I would like to know what is your opinion on this, what v4l2 framework should we use to deal with it, etc... I guess Multi Format Codec 5.1 driver for s5pv210 and exynos4 SoC is the most similar piece of HW I've found so far but it has not yet entered mainline [1] Note that mx2_camera driver is still using soc-camera framework and soc-camera doesn't seem to be ready for integration with pad level API [2]. For that reason we think we could develop this VPU driver separately. [1] http://www.spinics.net/lists/linux-media/msg35040.html [2] http://www.open-technology.de/index.php?/categories/2-SoC-camera -- Javier Martin Vista Silicon S.L. CDTUC - FASE C - Oficina S-345 Avda de los Castros s/n 39005- Santander. Cantabria. Spain +34 942 25 32 60 www.vista-silicon.com -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
