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 Ren? Stadler (3): base: fix thread leak base: advance timestamp pointer for empty output buffers base: don't use DSP flushing Tim-Philipp M?ller (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/ -- Felipe Contreras
