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30 commits

Author SHA1 Message Date
Michael Sevakis
7ad2cad173 Commit work started in FS#12153 to put timing/position information in PCM 
buffer chunks.

* Samples and position indication is closely associated with audio data
  instead of compensating by a latency constant. Alleviates problems with
  using the elapsed as a track indicator where it could be off by several
  steps.

* Timing is accurate throughout track even if resampling for pitch shift,
  whereas before it updated during transition latency at the normal 1:1 rate.

* Simpler PCM buffer with a constant chunk size, no linked lists.

In converting crossfade, a minor change was made to not change the WPS until
the fade-in of the incoming track, whereas before it would change upon the
start of the fade-out of the outgoing track possibly having the WPS change
with far too much lead time.

Codec changes are to set elapsed times *before* writing next PCM frame because
 time and position data last set are saved in the next committed PCM chunk. 


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30366 a1c6a512-1295-4272-9138-f99709370657
 2011-08-28 07:45:35 +00:00
Michael Sevakis
c537d5958e Commit FS#12069 - Playback rework - first stages. Gives as thorough as possible a treatment of codec management, track change and metadata logic as possible while maintaining fairly narrow focus and not rewriting everything all at once. Please see the rockbox-dev mail archive on 2011-04-25 (Playback engine rework) for a more thorough manifest of what was addressed. Plugins and codecs become incompatible. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29785 a1c6a512-1295-4272-9138-f99709370657
 2011-04-27 03:08:23 +00:00
Michael Sevakis
85e40257dc Enforce that codecs wait for their metadata in a proper-ish and consistent manner. Sort of a halfway patch; best would be to give them an internal copy of the current track information which lasts unaltered by playback until a track switch or unload. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29348 a1c6a512-1295-4272-9138-f99709370657
 2011-02-20 15:27:10 +00:00
Nils Wallménius
6325ef978b codecs: mark some local variables with 'static' 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27566 a1c6a512-1295-4272-9138-f99709370657
 2010-07-25 22:24:53 +00:00
Jeffrey Goode
6083f3dff5 Fix logf lines in codecs (type mismatches) 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26038 a1c6a512-1295-4272-9138-f99709370657
 2010-05-15 01:57:32 +00:00
Björn Stenberg
6427d127aa Calculate watermark from bitrate and harddisk spinup time. 
Use a smaller PCM buffer on targets with 2MB or less ram.
(FS#9703)


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19743 a1c6a512-1295-4272-9138-f99709370657
 2009-01-10 21:10:56 +00:00
Daniel Stenberg
2acc0ac542 Updated our source code header to explicitly mention that we are GPL v2 or 
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
 2008-06-28 18:10:04 +00:00
Brandon Low
b46175c202 Don't if this, it's a good idea for codecs to explicit seek 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15482 a1c6a512-1295-4272-9138-f99709370657
 2007-11-05 18:16:13 +00:00
Brandon Low
3379440a4b Remove conf_filechunk, it should never have been a setting and its implementation doesn't do what it claims any way 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15478 a1c6a512-1295-4272-9138-f99709370657
 2007-11-05 17:48:21 +00:00
Brandon Low
d02b5c744e Don't keep useless id3v2 or other leading tag data on the buffer, it could be large 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15465 a1c6a512-1295-4272-9138-f99709370657
 2007-11-05 01:56:12 +00:00
Magnus Holmgren
01a010fd19 Fix several printf-style warnings in logf builds. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12830 a1c6a512-1295-4272-9138-f99709370657
 2007-03-18 09:50:53 +00:00
Michael Sevakis
9b9e22731c SWCODEC: Fix the problem of replaygain not being applied unless the menu is entered. Make all codecs set the replay gain or else formats that do not have replaygain will not set the gain back to default if a file with gain applied proceeded them. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12498 a1c6a512-1295-4272-9138-f99709370657
 2007-02-26 17:15:04 +00:00
Michael Sevakis
97f369a587 SWCODEC: Annoying neatness update. Use intptr_t for codec_configure_callback and dsp_configure and stop all the silly type casting of intergral types to pointers to set dsp configuration and watermarks. Shouldn't have any effect on already compiled codecs at all. Will fix any important patches in the tracker so they compile. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12259 a1c6a512-1295-4272-9138-f99709370657
 2007-02-10 16:34:16 +00:00
Michael Sevakis
aba6ca0881 Fix resampling clicking as much as possible at the moment. 1) Upsampling clicked because of size inaccuracies returned by DSP. Fix by simplifying audio system to use per-channel sample count from codec to pcm buffer. 2) Downsampling affected by 1) and was often starting passed the end of the data when not enough was available to generate an output sample. Fix by clamping input range to last sample in buffer and using the last sample value in the buffer. A perfect fix will require a double buffering scheme on the resampler to sufficient data during small data transients on both ends at all times of the down ratio on input and the up ratio on output. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12218 a1c6a512-1295-4272-9138-f99709370657
 2007-02-07 00:51:50 +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
bbef13eddf SWCODEC: Stop clicks between tracks when resampler is active by only switching the DSP frequency and not resetting the resampler at track boundaries. Will make sure DSP is correctly flushed at dicontinuities but don't hear any problems currently. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11600 a1c6a512-1295-4272-9138-f99709370657
 2006-11-26 12:02:47 +00:00
Tomasz Malesinski
5c54ba49d5 Added macros controlling what goes to IRAM on different targets. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11483 a1c6a512-1295-4272-9138-f99709370657
 2006-11-09 21:59:27 +00:00
Thom Johansen
354770088e Re-enable the currently unused and broken dithering and noise shaping code already in Rockbox, and make it a user option instead of a codec-controlled option. The majority of people probably will not even hear any difference with this enabled, but feedback is welcome. Save your settings! 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11368 a1c6a512-1295-4272-9138-f99709370657
 2006-10-27 20:41:33 +00:00
Brandon Low
f3bc1efc49 First commit of reworking voice to be mroe stable on swcodec 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9758 a1c6a512-1295-4272-9138-f99709370657
 2006-04-22 14:40:13 +00:00
Brandon Low
ebadcc633a Put new_track on the codec_api, and use it instead of the reload_codec variable in most places. Should help with problems people have had with GUI vs. playback sync. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9670 a1c6a512-1295-4272-9138-f99709370657
 2006-04-15 02:03:11 +00:00
Brandon Low
c76904be53 Fix warnings 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9230 a1c6a512-1295-4272-9138-f99709370657
 2006-03-24 14:02:27 +00:00
Jens Arnold
ec70f29f1e Fix remaining warnings in 64bit simulator builds 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9196 a1c6a512-1295-4272-9138-f99709370657
 2006-03-22 19:51:40 +00:00
Dave Chapman
8e46ab85a9 Patch #1426489 - Shorten codec optimisations from Mark Arigo 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8615 a1c6a512-1295-4272-9138-f99709370657
 2006-02-07 22:16:35 +00:00
Brandon Low
1060e447f8 Part of the profiling patch to use a consistent return path in all codecs to facilitate 'on exit' functionality 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8374 a1c6a512-1295-4272-9138-f99709370657
 2006-01-18 20:22:03 +00:00
Jens Arnold
b8749fdf21 New codec loader, using the same mechanism as the new plugin loader. API version numbering restarted for the new system. Uses the target ID from configure, so don't change that too often. * Fixed sim_plugin_load_ram() to truncate the tempfile. * Reduced plugin buffer size to 512KB for iriver and iPod. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8362 a1c6a512-1295-4272-9138-f99709370657
 2006-01-18 00:05:14 +00:00
Jens Arnold
07c4254135 Don't include the .bss and .ibss sections in the binary image for codecs and plugins. Saves quite some disk space (and buffer space in case of codec changes during playback). 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8308 a1c6a512-1295-4272-9138-f99709370657
 2006-01-08 22:50:14 +00:00
Daniel Stenberg
76667e2a5b fix gcc4 (un)signed warnings 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8124 a1c6a512-1295-4272-9138-f99709370657
 2005-12-02 08:42:48 +00:00
Miika Pekkarinen
9c0f1a9e39 More stable playback with reduced stuttering when skipping tracks. 
Removed CODEC_SET_FILEBUF_LIMIT setting; now playback.c determines how
to buffer the files.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7970 a1c6a512-1295-4272-9138-f99709370657
 2005-11-18 20:21:13 +00:00
Dave Chapman
c01775ff41 Shorten updates from Mark Arigo: calculate average bitrate, skip id3v2 tags and remove debugf definition from codec 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7840 a1c6a512-1295-4272-9138-f99709370657
 2005-11-13 11:04:02 +00:00
Dave Chapman
2bf9be1c02 Patch #1352575 - Shorten codec from the ffmpeg project. Rockbox implementation by Mark Arigo. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7814 a1c6a512-1295-4272-9138-f99709370657
 2005-11-11 19:45:36 +00:00