Commit graph

11 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
Yoshihisa Uchida
7a3822c8b0 fix bug: WAV file playback does not resume (FS#11077)
Not only WAV but also Sun audio, SMAF, vox and WAV64 can resume.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25289 a1c6a512-1295-4272-9138-f99709370657
2010-03-22 10:02:05 +00:00
Yoshihisa Uchida
0996bbd278 corrects the smaf parser the following.
- It is normally retrieved even if the position of wave data is not in given position from the head.
- The problem that artist/title/composer cannot be given normally when the character code != iso8859-1, utf-8.
- The problem that the position of chunk does not given correctly some mmf files.
- artist/title/composer stored in not id3v1buf but id3v2buf.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25141 a1c6a512-1295-4272-9138-f99709370657
2010-03-13 05:53:54 +00:00
Yoshihisa Uchida
2a9c42d1ed libpcm: output depth corrects for the sign 1bit. linear pcm corrects bits shift.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25131 a1c6a512-1295-4272-9138-f99709370657
2010-03-12 11:34:09 +00:00
Yoshihisa Uchida
f640b89a12 wave codec
- does not get dwAvgBytesPerSec

wave/aiff/smaf/wave64 codec
- corrects the problem that codec_main() returns invalid value.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25051 a1c6a512-1295-4272-9138-f99709370657
2010-03-07 07:15:21 +00:00
Yoshihisa Uchida
8050d47a4e When seek action failed, play time is invalid.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25041 a1c6a512-1295-4272-9138-f99709370657
2010-03-06 08:13:56 +00:00
Yoshihisa Uchida
ff733b5f89 libpcm: decoded pcm depth corrects.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25040 a1c6a512-1295-4272-9138-f99709370657
2010-03-06 05:51:24 +00:00
Yoshihisa Uchida
78aced2831 fix yellow
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24881 a1c6a512-1295-4272-9138-f99709370657
2010-02-24 13:08:31 +00:00
Yoshihisa Uchida
45e009a364 add SMAF codec (.mmf extension)(FS#10432)
This codec supports only wave data (ADPCM and PCM).
It does not support MIDI, picture, and movie.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24878 a1c6a512-1295-4272-9138-f99709370657
2010-02-24 11:46:29 +00:00