Hi,
gst-dsp is a GStreamer plug-in to utilize Texas Intruments' DSP
algorithms for OMAP3 platforms using the tidspbridge driver.
This is a major release, many features have been implemented:
* Refactoring of DMA API
* Fixes for newer DSP API versions
* Add JPEG decoder implementation
* Fix WMV support
* Reorganize the way EOS is handled
* Improve H.264 keyframe handling
* Improve deinitialization on fatal errors (like MMU faults)
* Fixes for ARMv7 speculative pre-fetching
* Several improvements for encoding bitrate calculation
* Add support for I420 color format
* Correctly propagate aspect-ratio
And the usual bunch of cleanups and reorganization.
Also it's worth noting that this code has been tested on Nokia N900,
beagleboard, and future Nokia hw; with different DSP binaries;
L23.i3.8, L23.i3.3, and 0.3.5; and different DSP bridge driver
versions. For very old binaries, build with DSP_API=0, it's not
necessary to set SN_API yet, as the structures are binary compatible
with all the versions.
Moreover, this time I decided to package, this, and some related
packages in tarballs in order to help some distributions:
http://code.google.com/p/gst-dsp/downloads
This time we have slightly more contributors, including even some
patches from TI. Thanks everyone!
Unfortunately this is still not ready for 1.0, the parsers need to be
cleaned up, fixed, and merged. And once tidspbridge 0.4 is tagged,
move to the new DMA API ioctls.
Finally, most likely the core of gst-dsp will move to a separate
library (not related to GStreamer): libtidsp, in order to be useful in
other projects. A sample of that has been submitted to FFmpeg for
review:
http://article.gmane.org/gmane.comp.video.ffmpeg.devel/116798
Enjoy 
Arvind Gupta (3):
vdec: MPEG4 sn to use double buffer
hack: venc: strip SPS and PPS headers on keyframes
vdec: return last frame EOS from MPEG4, H.263 and WMV decoders
Felipe Contreras (111):
venc: fix default mode
base: reorganize status check in output_loop()
base: reorganize error checks in output_loop()
log: fix log level 3 when DEBUG is on
base: continue deinit on errors
base: make sure stop message was sent
base: detect algorithm errors
base: don't print messages as errors
base: reorganize error handling a bit
base: exit dsp_thread more cleanly
Allow more granularity in dspbridge API
build: add DSP_API option
Plug a few memleaks when node_create() fails
bridge: trivial cleanups
bridge: fix a small exceptional leak
vdec: always clear params
build: add option for socket-node API version
Trivial cleanups
dmm-buffer: we are using a proc handle, not node
base: avoid yoda conditions
base: improve send_buffer()
venc: remove unnecessary buffer_clean()s
dummy: invalidate before sending
vdec: remove h264dec_in_stream_params
Trivial cleanups
base: check for errors in dsp_wait_for_events()
base: avoid buffer duplication on corner-case
Refactor some code into dmm_buffer_calloc()
Refactor code into gstdsp_port_setup_params()
Add new gstdsp_send_alg_ctrl()
base: free alg_ctrl on exceptions
Rework cache maintainance functions
base: always invalidate out buffers afterwards
Add DMA direction information
Start using new DMA API
dmm-buffer: remove _unmap()
dmm-buffer: we know the page size
dmm-buffer: let's not be too smart about unreserve
dmm-buffer: put map and reserve together
Manually call dmm_buffer_map()
Add manual calls to dmm_buffer_unmap()
dmm-buffer: remove clean/invalidate/flush
build: general improvements
venc: fix for MPEG-4 SN_API=1
venc: add keyframe-interval property
Move ARRAY_SIZE to util.h
vdec: log actual SN used
Trivial improvements
venc: improve bitrate calculation
vdec: propagate aspect-ratio
Support multiple SN_API's
venc: register conversions library for jpegenc
venc: fix jpegenc params
Remove unnecessary assigns
build: add dist target
bridge: fix bad ioctls
bridge: update copyright
log: generic improvements
vdec: fix trivial warning
build: check for deprecated gst stuff
Fix depreated stuff from gst
vdec: trivial cleanup
Create ports in base class
log: trivial whitespace cleanups
Update copyright notices
Update licence notices
Add LICENSE file
build: only link to needed libraries
get-version: trivial improvements
build: a bit more warnings
parse: fix compilation warning
base: don't loose buffers on EOS
base: fix a non-atomic check for self->status
base: use atomic 'deferred_eos' instead of 'eos'
base: reorganize EOS handling
base: remove redundant checks for use_eos_align
base: clear deferred_eos when appropriate
base: refactor code into pause_task()
Remove 'use_eos_align'
base: a few more compiler hints
venc: extract codec-data for MPEG-4
venc: simplify avr mode workaround
venc: trivial cleanups
hack: h264enc: manually force keyframes
venc: add property for intra-refresh
venc: fix check_supported_levels()
venc: pick max bitrate at same level of mbps
venc: limit max_bitrate to the true maximum
venc: add check for invalid level
venc: cap bitrate to max_bitrate
venc: remove redundant max_bitrate check for H.264
vdec: calculate real coded framesize
vdec: add crop framesize
vdec: update buffer len based on crop size
base: update gst buffersize based on dmm_buffer len
Rename dsp_{start,stop}
dmm_buffer: whitespace cleanups
bridge: whitespace cleanups
bridge: trivial cleanups
bridge: reorganize return code handling
bridge: cleanup return codes
bridge: remove typedefs
Remove usage of typedefs
bridge: truly remove typedefs
dummy: use correct socket-node
dummy: fix mapping sequence
dummy: improve mapping
Trivial cleanups
dummy: add proper DSP event handling
dummy: improve error handling
Update README
Juha Alanen (7):
vdec: update WMV create phase parameters
base: use hexadecimal format when printing the error code
vdec: register conversions library
vdec: add send_cb for MPEG4 decoder
vdec: add recv_cb for MPEG4 decoder
vdec: enable {send,recv}_cb for H.263 decoder
venc: fix supported levels for H.264
Karunesha Uh (2):
vdec: add support for I420
base: add virtual method flush_frames
Laxman Raju (1):
venc: set right profile for JPEG enc
Marco Ballesio (1):
hack: venc: avoid intra frame interval
Mark Nauwelaerts (16):
base: appropriately flush queued events
base: keyframe marking must be thread-safe
base: additional checks for NULL buffers
base: ensure codec data is sent to node and not silently dropped
base: enhance eos aligned EOS sending
venc: add support for I420 YUV format
base: disable queues when pausing src task
base: free comm buffers in dsp_stop
base: do not consume buffer timestamp for a 0-length output buffer
venc: adjust h264 encoder frametype check
base: more state variable cleanup when stopping
base: add reset() vmethod
venc: implement reset() vmethod for state variable cleanup
vdec: fix codec-data transformation
venc: update jpegenc params to release L23.i3.4
venc: no automagic changes to property values
Martin Storsjo (1):
bridge: fix for DSP_API=0
Miguel Verdu (2):
venc: add supported levels
venc: H.264 CBR mode uses CIR
Olivier Crête (1):
venc: add max-bitrate property
Raju Laxman (1):
venc: update jpeg encoder API
Tommi Myöhänen (1):
base: check EOS before reallocating out buffer
Víctor Manuel Jáquez Leal (23):
bridge: add dsp_node_connect()
bridge: add dsp_stream_open()
bridge: add dsp_stream_close()
bridge: add dsp_stream_allocate_buffers()
bridge: add dsp_stream_idle()
bridge: add dsp_stream_get_info()
bridge: add dsp_stream_reclaim()
bridge: add dsp_stream_free_buffers()
bridge: add dsp_stream_issue()
dsp-bridge: check for attr before deferring
base: add du_port_alloc_buffers()
base: delay the comm port allocation
Delay allocation of port buffers
jpegdec: initial implementation
bridge: dsp_uuid_t normally is const
vdec: add and use configure_caps()
vdec: i420 support for jpgdec
vdec: check for structures in caps
vdec: allowed_caps makes more sense
vdec: trivial cleanup
bridge: add dsp_stop()
bridge: add dsp_load()
bridge: add dsp_start()