rockbox/apps/plugins/mpegplayer/pcm_output.c, branch working

Enable setting of global output samplerate on certain targets.

2013-07-06T02:22:04+00:00

Replaces the NATIVE_FREQUENCY constant with a configurable frequency.

The user may select 48000Hz if the hardware supports it. The default is
still 44100Hz and the minimum is 44100Hz. The setting is located in the
playback settings, under "Frequency".

"Frequency" was duplicated in english.lang for now to avoid having to
fix every .lang file for the moment and throwing everything out of sync
because of the new play_frequency feature in features.txt. The next
cleanup should combine it with the one included for recording and
generalize the ID label.

If the hardware doesn't support 48000Hz, no setting will be available.

On particular hardware where very high rates are practical and desireable,
the upper bound can be extended by patching.

The PCM mixer can be configured to play at the full hardware frequency
range. The DSP core can configure to the hardware minimum up to the
maximum playback setting (some buffers must be reserved according to
the maximum rate).

If only 44100Hz is supported or possible on a given target for playback,
using the DSP and mixer at other samperates is possible if the hardware
offers them.

Change-Id: I6023cf0c0baa8bc6292b6919b4dd3618a6a25622
Reviewed-on: http://gerrit.rockbox.org/479
Reviewed-by: Michael Sevakis 
Tested-by: Michael Sevakis

MPEGPlayer: Fixup typecasting for PCM buffer a bit.

2012-04-26T20:04:42+00:00

Change-Id: I96cca97c1effe5fe2cf84271b123928ebe38e2a7

Revise the PCM callback system after adding multichannel audio.

2012-03-03T06:23:38+00:00

Additional status callback is added to pcm_play/rec_data instead of
using a special function to set it. Status includes DMA error
reporting to the status callback. Playback and recording callback
become more alike except playback uses "const void **addr" (because
the data should not be altered) and recording  uses "void **addr".
"const" is put in place throughout where appropriate.

Most changes are fairly trivial. One that should be checked in
particular because it isn't so much is telechips, if anyone cares to
bother. PP5002 is not so trivial either but that tested as working.

Change-Id: I4928d69b3b3be7fb93e259f81635232df9bd1df2
Reviewed-on: http://gerrit.rockbox.org/166
Reviewed-by: Michael Sevakis 
Tested-by: Michael Sevakis

Have mpegplayer use the mixer (the playback channel, since it's mutually exclusive to audio playback) so the clicks and skip beep can be used according to user settings. Introduce some system sound functions to make easier playing event sounds from various places and convert files calling 'beep_play' to use 'system_sound_play' and 'keyclick_click'. Event sound could be become themeable.

2011-07-08T22:31:15+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30130 a1c6a512-1295-4272-9138-f99709370657

MPEGPlayer: Account for drivers that pass pointers to their internal state variables to the audio callback.

2011-01-25T17:18:20+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29135 a1c6a512-1295-4272-9138-f99709370657

MPEGPlyaer: A bit of audio mutation. Remove a useless thread state. Take some control over the buffer away from the audio thread itself. Some atomicity corrections.

2011-01-07T05:17:28+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28984 a1c6a512-1295-4272-9138-f99709370657

Eliminate %zd tag in printf format strings, replace them with %ld. The %z formatter kept generating type mismatch warnings.

2010-05-15T03:34:31+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26040 a1c6a512-1295-4272-9138-f99709370657

Fix various size_t related warnings and errors

2010-05-14T22:19:45+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26035 a1c6a512-1295-4272-9138-f99709370657

another cast ssize_t -> long

2010-05-14T22:16:40+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26034 a1c6a512-1295-4272-9138-f99709370657

Updated our source code header to explicitly mention that we are GPL v2 or

2008-06-28T18:10:04+00:00

later. We still need to hunt down snippets used that are not. 1324 modified
files...
http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657