It definitely seems to be a very nice effort that will be very useful to many projects. I will integrate on the Touch Book. Thanks, Grégoire On Tue, 2009-10-13 at 00:31 +0300, Felipe Contreras wrote: > Hi, > > This is the first public release of gst-dsp; a native GStreamer plug-in to > access Texas Instruments' DSP algorithms for OMAP3 platforms. > > The code came originally from a series of TI projects: tiopenmax[1], and > libbridge[2]. gst-dsp replaces these two layers and talks directly to the DSP > bridge driver. > > The main advantages are code simplification (5k vs 50k), and better performance > (at least 4 times less CPU usage). However, not all of the codecs have been > implemented, only MPEG-4 and H.263 video encoders and decoders, the JPEG > encoder, and H.264 is partially supported. > > Currently it's used in the Nokia N900. > > In order to make it easier for people to try it out, I created a demo image for > the beagleboard with all the required components: GStreamer, gst-dsp, DSP > public binaries, and a kernel with DSS2 and DSP bridge driver. > > The linux kernel (DSS2 + dspbridge) is at the v2.6.32-felipec1 tag in: > http://gitorious.org/~felipec/linux-omap/felipec > > The DSP algorithms are public, and come from tiopenmax: > https://gforge.ti.com/gf/download/frsrelease/170/1399/tiopenmax-0.3.5.tar.gz > > Here's the demo rootfs with the kernel image and instructions: > http://people.freedesktop.org/~felipec/beagle-2.6.32-rc3/ > > And here's the video showing it on action for both playback and recording: > http://www.youtube.com/watch?v=SN-Nw_yDQUs > > The main repository is hosted on github: > http://github.com/felipec/gst-dsp > > And there's also one specific for maemo: > http://maemo.gitorious.org/maemo-multimedia/gst-dsp > > This code wouldn't have been possible without all the contributions and > specially thanks to TI for making their code open source. > > Here's the shortlog for 0.6.0: > > Andriy Shevchenko (1): > base: fix a crash on send codec data > > Felipe Contreras (180): > Initial commit > Register dsp node > Add README > Fix and update copyrights > Add ALLOCATE_HEAP and ALLOCATE_SN to dsp_bridge > Add handy dsp_send_message > dummy: use dsp_send_message > Rename gstdsp.* to plugin.* > Makefile: cleanup > dummy: trivial clanups > Add log utility > Use log utility > dmm_buffer: size_t improvements > dmm_buffer: always unmap when freeing > dmm_buffer: use getpagesize() > dmm_buffer: alignment improvements > dmm_buffer: add user_data field > Add MPEG-4 video decoder > README: update > mp4vdec: trivial cleanup > mp4vdec: send signal to output_loop > mp4vdec: flush output buffers too > mp4vdec: reset output port > mp4vdec: extra check for null buffer > mp4vdec: use atomic operations for status > mp4vdec: use more atomic operations for status > mp4vdec: send stop signal before > mp4vdec: re-use comm buffers > dmm_buffer: reorganize a bit > dmm_buffer: add dmm_buffer_reserve > dmm_buffer: allow to re-reserve memory > dmm_buffer: allow re-mapping > mp4vdec: trivial cleanup > dmm_buffer: unmap before unreserving > mp4vdec: re-use mappings for output buffers > mp4vdec: convert flush condition to semaphore > Remove cond.h > Rename mp4vdec to vdec > vdec: trivial cleanup > vdec: trivial reorganization > vdec: prepare for multiple algos > vdec: move create_node to dsp_start > vdec: start dsp node after getting the caps > vdec: initial support for H.264 > vdec: add Juha to authors list > README: update > vdec: cleanup > vdec: make dsp_thread static > vdec: reorganize a bit > New base class > Add new video encoder > base: handle more commands > base: reorganize got_message a bit > venc: improve jpeg args > venc: send jpeg dynamic params > base: cleanup setup_output_buffers > base: remove unused buffer_count > base: reorganize a bit > base: add use_pad_alloc option > base: free mapped buffers on dsp_stop() > base: be more verbose on get_slot() > README: update > Makefile: check for missing symbols > New utility gstdsp_register() > base: detect dsp errors > base: properly handle dsp errors > base: post error in the bus > base: extra check for status in outout_loop() > base: free events array > base: reinitialize state on NULL->READY > base: use circular buffer for timestamps > base: increase ts_array > base: increase mapping cache > dummy: reorganize map_buffer > dummy: input buffers don't need alignment > dummy: cleanup > dummy: don't map buffers > venc: increase framesize limit for jpeg > base: add gstdsp_post_error() > venc: allocate a buffer when framesize is unaligned > base: decrease wait for events timeout > base: more error messages > base: re-initialize on READY->PAUSED > base: don't panic on wrong status > base: destroy node at the right time > base: catch playback completed message > base: possible memleak fixes > vdec: send codec data for MPEG-4 > base: make map cache optional > plugin: set more proper ranks > vdec: add framerate workaround > vdec: remove gstdsp_send_buffer() > base: add create_node() vmethod > base: add parsing facilities > Add h263 parser > parse: update framesize only when unset > Random cleanups > base: add support for stream params > venc: add H.263 > venc: use h263 by default > Reorganize encoders > base: send codec data for all the codecs > base: keep trying if parse func fails > base: trivial cleanup > Trivial cleanups > log: don't display info level > log: decrease log level for buffer allocs > log: add pr_test > base: rename array to cache > base: rename 'buffer' to 'comm' > base: event cleanup > base: reorganize a bit > base: assume output buffer is always there > base: remove out_buffer, use port buffer > base: store input buffer > base: trivial cleanup > base: flush ports on stop > base: plug some possible leaks > base: make map_buffer() more conservative > base: trigger semaphore after buffer modifications > base: re-use input buffer > base: add port index field > Add async queue > base: allow multiple buffers > base: allow child elements to configure the ports > vdec: increase the number of buffers to 2 > venc: trivial fixes > log: add missing include > base: re-enable queues properly > venc: decrease input buffer size > base: wait for eos > base: possible fix > Initial MPEG-4 video encoder support > gstdspvenc.h: preemptively add H.264 to the list > base: add send_codec_data() helper > vdec: use send_codec_data() > vdec: extra checks > Add skip hack > Revert "venc: forcing mpeg4 I frame each i_frame_interval" > venc: reorganize stream/dynamic params > base: trivial cleanup > base: properly set param virt addr > Add param argument to buffer callbacks > Add buffer argument to buffer callbacks > base: add buffer recv_cb > base: add check for end addr alignment > vdec: fix extra unref for codec-data > base: trivial cleanups > Rename dmm_buffer_flush() to dmm_buffer_clean() > base: fix memory read > dmm_buffer: clean instead of flush > dmm_buffer: add cache 'flush' function back > Use more proper cache functions > base: handle bad node termination > base: make EOS alignment an option > jpegenc: enable eos align > venc: improve integer framerate calculation > venc: fix bitrate calculation > venc: cleanup bitrate calculation > venc: remove jpeg from bitrate calculation > venc: tweak bitrate calculation > venc: trivial cleanups > venc: add 'quality' field > venc: calculate smaller buffer sizes > Fix some static analysis warnings > log: avoid pr_info when gst debugging is off > base: remove use_map_cache > Trivial cleanups > Cleanup type registrations > base: improve some compiler hints > dmm-buffer: check cache flush size > base: properly free node resources > Create custom dsp_node_t > dsp-bridge: store node heap ourselves > dsp-bridge: store node msgbuf ourselves > dsp-bridge: cleanup node_free > base: copy buffers when appropriate > base: remove unnecessary cache flushing > venc: set rate-control to variable > base: post critical error mesages to the bus > > Hoseok Chang (1): > venc: tune mp4v parms for better performance > > Juha Alanen (5): > vdec: set profile based on the frame size > vdec: improve H.263 args > vdec: initial support for WMV9 > venc: set profile correctly for H.263 and MPEG4 > venc: disable single scan output for JPEG encoder > > Marco Ballesio (8): > vdec: fix srcpad setup > venc: rename mp4venc_stream_params > venc: add mp4venc_out_stream_params > base: use proper buffer length > venc: forcing mpeg4 I frame each i_frame_interval > venc: reordered mp4venc_args initialization > venc: added bitrate computation formula > venc: propagate keyframes properly > > Mark Nauwelaerts (2): > base: safer buffer allocation and freeing > base: fix element ref leak > > Miguel Verdu (2): > venc: tune MPEG-4 parameters > venc: tune MPEG-4 parameters for quality > > René Stadler (3): > base: fix thread leak > base: advance timestamp pointer for empty output buffers > base: don't use DSP flushing > > Tim-Philipp Müller (1): > base: unref unused output buffer when skipping output > > Cheers. > > [1] https://gforge.ti.com/gf/project/openmax/ > [2] https://gforge.ti.com/gf/project/omapbridge/ > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
