Commit graph

127 commits

Author SHA1 Message Date
Nicolas Dufresne
b8142bde07 spectrum: Fix min and max for bands property
The number of FFTs is calculated with the following formula:

  guint nfft = 2 * bands - 2;

nfft is passed to gst_fft_f32_new() as the len argument and is of type
unsigned integer. This method required that len is at leas 1, then
maximum G_MAXINT, as other values would be negative. If we extrapolate
from the formula above it means we need "bands" to be between 2 and
((guint)G_MAXINT + 2) / 2).

https://bugzilla.gnome.org/show_bug.cgi?id=744213
2015-02-15 21:34:28 -05:00
Tim-Philipp Müller
c9597298f9 docs: remove outdated and pointless 'Last reviewed' lines from docs
They are very confusing for people, and more often than not
also just not very accurate. Seeing 'last reviewed: 2005' in
your docs is not very confidence-inspiring. Let's just remove
those comments.
2014-04-26 23:35:17 +01:00
Stefan Sauer
a4fd0f9351 docs: use docbook markup for xi:include
It turns out that the change in gtk-doc-1.20 which wraps the |[]| content in
CDATA break xi:inlcude examples. As in a whole jhbuild checkout these where
the only 4, we're fixing them instead.
2014-02-18 22:54:45 +01:00
Sebastian Dröge
b0b0557c48 gst: Add better support for static plugins 2013-04-15 15:54:11 +02:00
Stefan Sauer
b062171dda spectrum: remove old since comment 2013-04-03 20:30:08 +02:00
Stefan Sauer
15a81baea5 spectrum: remove the since doc-comment from 0.10 2013-02-28 09:43:12 +01:00
Stefan Sauer
96f8775a0d spectrum: remove outdates readme
Lets remove the readme from pre-0.1.0 that is completely irrelevant now.
2013-02-05 22:02:13 +01:00
Tim-Philipp Müller
230cf41cc9 Fix FSF address
https://bugzilla.gnome.org/show_bug.cgi?id=687520
2012-11-04 00:07:18 +00:00
Wim Taymans
15c2b997e9 spectrum: elements post element messages 2012-10-10 10:09:10 +02:00
Tim-Philipp Müller
e09ae5736d Use new gst_element_class_set_static_metadata() 2012-04-10 00:51:41 +01:00
Sebastian Dröge
aa2cd462da gst: Update for GST_PLUGIN_DEFINE() API changes 2012-04-05 17:36:38 +02:00
Sebastian Dröge
5cdd49bf25 gst: Update versioning 2012-04-04 14:37:47 +02:00
Wim Taymans
7749cd3f7b update for basetransform lock removal 2012-02-23 11:20:02 +01:00
Wim Taymans
b4630dd3e0 more memory API porting 2012-01-25 12:30:29 +01:00
Sebastian Dröge
b35bacb460 spectrum: Update for the new raw audio caps layout field 2012-01-05 10:30:34 +01:00
Matej Knopp
1e5dd9e315 Fix printf format compiler warnings on OS X / 64bit
https://bugzilla.gnome.org/show_bug.cgi?id=662615
2011-11-22 01:28:22 +00:00
Wim Taymans
e204c5934c -good: port to new audio caps 2011-09-06 13:16:27 +02:00
Wim Taymans
445bf71bd1 port to more audio api changes 2011-08-19 16:09:48 +02:00
Wim Taymans
77ad0a1363 port more elements to new audio caps and API 2011-08-19 14:01:45 +02:00
Wim Taymans
48e47ad702 Merge branch 'master' into 0.11 2011-08-17 11:17:38 +02:00
Vincent Penquerc'h
f8a9f5bc1c spectrum: avoid crashing by resetting the correct number of channels
https://bugzilla.gnome.org/show_bug.cgi?id=656606
2011-08-16 22:44:07 +01:00
Mark Nauwelaerts
8d73748509 spectrum: remove deprecated property 2011-06-30 12:35:32 +02:00
Mark Nauwelaerts
2d9bcbdf03 spectrum: port to 0.11
* use G_DEFINE_TYPE
* adjust to new GstBuffer
2011-06-30 12:35:31 +02:00
Thibault Saunier
b541208b77 android: Make it ready for androgenizer
Remove the android/ top dir
Fixe the Makefile.am to be androgenized

To build gstreamer for android we are now using androgenizer which generates the needed Android.mk files.
Androgenizer can be found here: http://git.collabora.co.uk/?p=user/derek/androgenizer.git
2011-04-11 01:20:11 +02:00
Stefan Kost
fb071dd89e spectrum: refactor processing loop for block based operation
Previously the chain function was working sample frame based. In each cycle it
was checking if it is time to run a fft or if it is time to send a message.
Now we changed the data transform functions to work on a block of data and
calculate the max length until either {end-of-data, do-fft, do-msg}. This allows
us also to avoid the duplicated code for the single and multi-channel case (as
the transformers have the same signature now).
2011-03-25 00:15:48 +02:00
Stefan Kost
f00af192c9 spectrum: fix the error accumulation and frames_todo handling
Even though we wrap around the accumulated second, we still need to add the
error in the same cycle. Increase the todo in the same conditional as afterwards
the accumulated error will be below one second.
2011-03-24 14:14:09 +02:00
Stefan Kost
315347a8dc spectrum: fix broken code resulting for a wrong splitup of changes 2011-03-24 13:53:12 +02:00
Stefan Kost
3b552ae6f8 spectrum: simplify the have_interval calculation
Move some of the conditions to the places where the dependent variables change.
2011-03-24 11:27:34 +02:00
Stefan Kost
1979b04f46 spectrum: use local var for input_data function
Avoid dereferencing the input_data from the instance from within an inner loop.
2011-03-24 11:27:34 +02:00
Stefan Kost
32afdea96d spectrum: more comments and tune and logging 2011-03-10 14:29:25 +02:00
Stefan Kost
1a32265b51 spectrum: avoid unneccesary extra fft runs
Before it was possible that we run an extra fft when the time for sending a new
message is due. Only do this if we have not run the fft for the interval at all.
2011-03-10 14:15:42 +02:00
Stefan Kost
f1785b0e4a spectrum: only scale the vectors that we are processing
Phase is not produced by default, so lets not scale it unconditionally to save a
few cycles.
2011-03-10 14:12:01 +02:00
Stefan Kost
5bf267c485 spectrum: put number of channels to instance variable
When freeing data the format might have changed. Thus we need to remember for
which format we allocated memory.
2011-03-10 14:10:25 +02:00
Stefan Kost
dc1fe1d77f spectrum: update doc review stamp 2011-03-10 10:27:41 +02:00
Stefan Kost
b792b100e2 spectrum: use function pointers for data readers
Don't check the format for each sample frame to read. We can make that decission
in _setup already. This is still not ideal as we call the function per frame.
Ideally we determine how many samples we can copy and have a loop in the input
reader. As an alternative we might also consider to use the fft variants for the
various formats and not convert to float for all cases - we would still need to
mix or deinterleave though.
2011-03-10 10:27:41 +02:00
Stefan Kost
c622477a92 spectrum: multi-channel support
Add a boolean multi-channel property with a default of FALSE. When set to TRUE
the element won't mix all input channels to mono, but instead run a FFT on each
channel. In that case the result message would contain a 2 dimensional array
of channel x data for magnitude and phase.

API: GstSpectrum:multi-channel
https://bugzilla.gnome.org/show_bug.cgi?id=593482
2011-03-09 17:01:47 +02:00
Stefan Kost
832aac534a spectrum: more xrefs in the docs 2011-03-09 17:00:58 +02:00
Stefan Kost
65f4c4b3e6 spectrum: factor out the code that accumulated samples into the ring-buffer
Use a separate function to read a sample frame into a ringbuffer slot. In the
future we can use format-specific function pointer to avoid the reoccuring
format checks.
2011-03-09 17:00:58 +02:00
Stefan Kost
5b9028c52c spectrum: pull format to temp var to improve readability of lines using it 2011-03-09 17:00:58 +02:00
Stefan Kost
b60675acaf spectrum: code cleanup for copying data to ring-buffer
Rename fp to is_float and restructure if-else part for handling the different formats.
2011-03-09 17:00:58 +02:00
Stefan Kost
787aca6898 spectrum: add a GstSpecrtumChannel context structure
We now keep the fft data that is related to one channel in a separate structure
to prepare for multichannel support. We also refactor the code to operate more
often on the channel context.
2011-03-09 17:00:57 +02:00
Stefan Kost
2fd09ebd89 spectrum: call the instance var spectrum instead of filter 2011-03-09 17:00:57 +02:00
Stefan Kost
d8d6a3b79e spectrum: don't value we already took from the gvalue 2011-03-09 17:00:57 +02:00
Stefan Kost
77fe8c151a spectrum only aggregate magnitude/phase if user asks for it 2010-09-06 09:53:00 +03:00
Stefan Kost
0dca0becb2 spectrum: improve performance with local vars
Use 'input' instead of 'spectrum->input' which was intende already (variable
exists, but not used everywhere). Also use a local version of
'spectrum->input_pos'.
2010-09-06 09:53:00 +03:00
Stefan Kost
8beead14d0 spectrum: code cleanup
More comments and logging. Extract one complex condition to a variable. Reorder
some code for readability.
2010-09-06 09:53:00 +03:00
Stefan Kost
50a139de85 spectrum: improve property setter
consistently only update if the property actualy changed the value. Do it
without reading the gvalue twice. No need to reset the spectrum analyzer for
threshold changes.
2010-09-06 09:53:00 +03:00
Stefan Kost
61f22f4379 spectrum: add helper to only flush ringbuffer data without resetting the fft
Reduces some duplicated code as well.
2010-09-06 09:53:00 +03:00
Stefan Kost
34bdec3d58 spectrum: more comments 2010-09-06 09:53:00 +03:00
Alexander Kojevnikov
2d13b15376 spectrum: support 24-bit width
Fixes #619045
2010-06-01 11:21:29 +02:00