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42 commits

Author SHA1 Message Date
Wim Taymans
f09b51198f whitespace fixes 2009-08-20 11:31:04 +02:00
Wim Taymans
2d73f13567 samples-util: add padding to volume array 
Pad the volume array with a copy of the start. We'll need this later to be able
to write optimized functions.
 2009-08-20 11:30:55 +02:00
Wim Taymans
3d008961c0 sample-util: move volume code to separate file 
Move the volume code into a separate file with the reference C implementations.
Add a function to retrieve the volume function and one to install a new one.
 2009-08-20 11:29:48 +02:00
Wim Taymans
e71e644eb6 sample-util: move some functions around 
Move some stuff around before splitting it into a separate file.
 2009-08-20 11:29:47 +02:00
Wim Taymans
5b8b6544e2 sample-utils: coding style cleanup 
Make the coding style match the rest of pulseaudio more.
Remove some liboil functions, they seem unoptimized and likely slower than our
handrolled versions here.
 2009-08-20 11:29:47 +02:00
Wim Taymans
26839c4b9e sample-utils: split out functions from case 
Move the volume functions out of the switch case and use a table indexed by the
sample format to find the volume function.
 2009-08-20 11:29:47 +02:00
Lennart Poettering
89e3adf8cd sample: fix build on BE archs 2009-06-08 18:22:19 +02:00
Lennart Poettering
d2b5ae5525 sample-util: fix iteration loop when adjusting volume of s24 samples 2009-05-01 04:14:40 +02:00
Lennart Poettering
3a7b287c7e sample-util: properly allocate silence block for s24-32 formats 2009-05-01 04:14:02 +02:00
Colin Guthrie
86dee05aec Use LGPL 2.1 on all files previously using LGPL 2 2009-03-03 20:23:02 +00:00
Lennart Poettering
2a238b2d7f don't overflow when we do digital amplification of 16 bit samples 2009-01-23 19:40:01 +01:00
Lennart Poettering
4a13763797 Add support for 24bit samples encoded in the LSB of 32 bit words 2009-01-16 18:39:36 +01:00
Lennart Poettering
6dc76d1158 add support for 24bit packed samples 2009-01-16 03:15:39 +01:00
Lennart Poettering
b8e6aae08e add new API function pa_memchunk_sine() 
Ease generation of sine signals. Try to make the repeatable sine
memblock fit into a single mempool slot.
 2009-01-12 19:48:44 +01:00
Lennart Poettering
98049fbf81 make things compile again 2009-01-08 23:31:05 +01:00
Lennart Poettering
aff7768fb1 Add new debuuging API pa_memchunk_dump_to_file() 2009-01-08 21:12:03 +01:00
Lennart Poettering
519bb556cd fix return value of pa_frame_aligned() 2008-10-21 18:26:24 +02:00
Lennart Poettering
2367212ec3 make a few casts explicit to remove compiler warnings 2008-10-03 17:14:58 +02:00
Lennart Poettering
33b186e74d user lrint() and friends in inner loops instead of normal C casts to speed up a few things 2008-10-03 02:34:59 +02:00
Lennart Poettering
7d442e3276 optimize mixing routines a bit by pulling the multiplication with the global volume out of the inner loop by applying it first to the per-stream volumes 2008-10-03 01:53:34 +02:00
Lennart Poettering
ea82dec294 when we mix into a 16bit accumulator make sure we clamp before we scale with a volume to avoid range faults when multiplying 2008-10-02 02:29:56 +02:00
Lennart Poettering
bb8263be6f add byte-to-usec and usec-to-byte converters that round up, not down 2008-08-28 17:53:01 +02:00
Lennart Poettering
b7026bf248 add a few more gcc warning flags and fix quite a few problems found by doing so 2008-08-19 22:39:54 +02:00
Lennart Poettering
c4dff4d416 otpimize mixing code a bit by moving a few checks out of the inner loops 2008-08-11 18:34:38 +02:00
Lennart Poettering
5b2a83733d optimize volume changing a bit by only using a single counter for the inner loops instead of two 2008-08-11 15:19:52 +02:00
Lennart Poettering
b604290803 adhere to struct gcc aliasing rules 2008-08-11 15:17:30 +02:00
Lennart Poettering
8ae83d618e get rid of svn $ keywords 2008-06-18 23:23:21 +03:00
Lennart Poettering
045c1d602d merge glitch-free branch back into trunk 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@2445 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2008-05-15 23:34:41 +00:00
Lennart Poettering
b0a68fd09f optimize mixing code a bit. Add mixers for S32LE, S32BE, ULAW, ALAW and FLOAT32BE. Add volume adjusters for FLOAT32BE, ALAW, ULAW. 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@2041 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2007-11-09 17:11:45 +00:00
Lennart Poettering
c1985c2acc replace a few CLAMPs by PA_CLAMP_UNLIKELY 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@2040 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2007-11-09 14:20:12 +00:00
Lennart Poettering
7e0f547f2f add support for 32bit integer samples 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@2037 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2007-11-09 02:45:07 +00:00
Lennart Poettering
a67c21f093 merge 'lennart' branch back into trunk. 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1971 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2007-10-28 19:13:50 +00:00
Lennart Poettering
1e12e0ee8d Kill spaces on EOL 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1465 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2007-05-29 17:24:48 +00:00
Lennart Poettering
33304ba118 Fix a DoS with allocating overly large silence buffers. (Identified by Luigi Auriemma (re #67) 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1450 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2007-05-23 16:59:03 +00:00
Pierre Ossman
06211b7c8f Add copyright notices to all relevant files. (based on svn log) 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1426 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2007-02-13 15:35:19 +00:00
Pierre Ossman
521daf6f0a Huge trailing whitespace cleanup. Let's keep the tree pure from here on, 
mmmkay?


git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1418 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2007-01-04 13:43:45 +00:00
Pierre Ossman
0ef2d7eb77 Support reversed endian floats. (closes #28) (closes #35) 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1412 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-11-08 13:03:35 +00:00
Pierre Ossman
8dc6214276 Revert r1404 and keep it on a development branch until it is fully tested. 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1409 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-11-06 13:06:01 +00:00
Lennart Poettering
d210ebbb09 rework memory block management to be thread-safe and mostly lock-free. 
pa_memblock is now an opaque structure. Access to its fields is now done
through various accessor functions in a thread-safe manner.

pa_memblock_acquire() and pa_memblock_release() are now used to access the
attached audio data. Why? To allow safe manipulation of the memory pointer
maintained by the memory block. Internally _acquire() and _release() maintain a
reference counter. Please do not confuse this reference counter whith the one
maintained by pa_memblock_ref()/_unref()!

As a side effect this patch removes all direct usages of AO_t and replaces it
with pa_atomic_xxx based code.

This stuff needs some serious testing love. Especially if threads are actively
used.



git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1404 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-26 23:50:56 +00:00
Lennart Poettering
e385d93e5a remove all occurences of 
pa_logXXX(__FILE__":  
   
and replace them by 
  
   pa_logXXX("



git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1272 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-18 21:38:40 +00:00
Lennart Poettering
0e436a6926 Rework memory management to allow shared memory data transfer. The central idea 
is to allocate all audio memory blocks from a per-process memory pool which is
available as read-only SHM segment to other local processes. Then, instead of
writing the actual audio data to the socket just write references to this
shared memory pool.

To work optimally all memory blocks should now be of type PA_MEMBLOCK_POOL or
PA_MEMBLOCK_POOL_EXTERNAL. The function pa_memblock_new() now generates memory
blocks of this type by default.



git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1266 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-18 19:55:18 +00:00
Lennart Poettering
f44ba09265 big s/polyp/pulse/g 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1033 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-06-19 21:53:48 +00:00
Renamed from src/polypcore/sample-util.c (Browse further)