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13 commits

Author SHA1 Message Date
Michael Sevakis
5323fe996b Move encoder CPU boost control to the core. Allow CPU to sleep a bit when PCM buffer is empty and save some power. Codec API becomes incompatible so full updates! :) 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15854 a1c6a512-1295-4272-9138-f99709370657
 2007-11-30 05:16:56 +00:00
Michael Sevakis
205ec3279d Make recording complain about every little file I/O problem (error on close() failure and fsync() failure). Why? I guess we will find out the disk is full about 1/2 sector sooner on average when the file APIs actually detect this correctly. :/ 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13262 a1c6a512-1295-4272-9138-f99709370657
 2007-04-25 19:53:34 +00:00
Michael Sevakis
62e0a516a0 Accept FS#6918 - Remove Nested Functions by Tim Ross. Adjust some names. Hunt down and remove the remaining ones in the recording system as well. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12955 a1c6a512-1295-4272-9138-f99709370657
 2007-03-29 01:55:47 +00:00
Michael Sevakis
598629c3bf SWCODEC Recording Codecs: Fix problems with hanging recording screen (chiefly on x5) when no voice file present and source is not FMRadio. Caused by extra audio stops causing encoder to unload prematurely. Fix is to have separate stop flags for each codec type to prevent collisions. Also now safe to plug into USB when recording and encoder will stay loaded and not be stopped by the call to audio_stop_playback. Additional discovery: playback will not be able to restart after a USB plug during recording. Probably an old bug. I recommend in the future that recording have higher priority on system resources than playback and playback be denied access explicitly if recording requires them. Codec API becomes incompatible so do full updates. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12579 a1c6a512-1295-4272-9138-f99709370657
 2007-03-04 04:16:53 +00:00
Jens Arnold
471d881979 ARM targets: Making a few functions non-static allows us to get rid of -ffunction-sections, significantly decreasing binary size and making things run a bit faster because static functions are no longer long_call. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12349 a1c6a512-1295-4272-9138-f99709370657
 2007-02-17 11:19:14 +00:00
Michael Sevakis
d52f2e4bca Encoders: Add a little dithering with the fractional bit for mono mixdowns so faster shifts can be used again instead of division without introducing their own DC offset into the mixed channels. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12246 a1c6a512-1295-4272-9138-f99709370657
 2007-02-09 18:11:11 +00:00
Barry Wardell
df0dc2262e FS#6096. Recording on PortalPlayer targets (H10, iPod Video, iPod 4g, iPod Color, iPod Nano). 
* Fix failed compile of enc_config.c when HAVE_MPEG2_SAMPR is not defined.
* Fix bug in AIFF encoder header creation on little endian targets.
* Add recording screen keymaps for H10 and iPod.
* Move pcm_playback PP specific code to target tree.
* Add recording code to wmcodec drivers.
* Add pcm_record code.

Some problems still remain:
* Playback doesn't work after recording until Rockbox is restarted.
* Gain control not implemented.
* Only 16-bit/44KHz for now. The hardware should be capable of up to 24-bit/96KHz.
* Line-in recording not tested on H10.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11794 a1c6a512-1295-4272-9138-f99709370657
 2006-12-18 01:52:21 +00:00
Michael Sevakis
3b7d703329 Encoders: Mixdown to mono should round towards zero not -infinity. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11634 a1c6a512-1295-4272-9138-f99709370657
 2006-12-01 00:39:37 +00:00
Michael Sevakis
6ae46065b4 Add support for compiling encoders without adjustable CPU frequency and/or IRAM. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11625 a1c6a512-1295-4272-9138-f99709370657
 2006-11-29 17:52:30 +00:00
Tomasz Malesinski
0daef7565c Fixed the build error in FS#6357, patch 1. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11608 a1c6a512-1295-4272-9138-f99709370657
 2006-11-26 19:10:26 +00:00
Tomasz Malesinski
80da8b141c FS#6357, patch 1: let iramcopy and bss share the same space in codecs and 
plugins. Currently, in case of plugins using IRAM bss is cleared twice,
once in the loader, once in PLUGIN_IRAM_INIT. For codecs, bss is cleared only
during codec initialization. Also, removed double variables in codecs
storing a pointer to codec_api.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11606 a1c6a512-1295-4272-9138-f99709370657
 2006-11-26 18:31:41 +00:00
Michael Sevakis
aa9ddbd8ba Fixed header calculation goofs that would've affected mono files and little-endian targets. A bit of general cleanup. Time for bed. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11586 a1c6a512-1295-4272-9138-f99709370657
 2006-11-24 21:34:15 +00:00
Michael Sevakis
0729b928ce Recording: Add AIFF recording to SWCODEC. Note: AIFF playback chokes on sample rates other than 44.1kHz whether recorded or created and saved with an external program. Recorded files will still open in an external editor however. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11583 a1c6a512-1295-4272-9138-f99709370657
 2006-11-24 19:49:04 +00:00