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Implement time-based resume and playback start.

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This complements offset-based resume and playback start funcionality.
The implementation is global on both HWCODEC and SWCODEC.

Basically, if either the specified elapsed or offset are non-zero,
it indicates a mid-track resume.

To resume by time only, set elapsed to nonzero and offset to zero.
To resume by offset only, set offset to nonzero and elapsed to zero.

Which one the codec uses and which has priority is up to the codec;
however, using an elapsed time covers more cases:

* Codecs not able to use an offset such as VGM or other atomic
formats

* Starting playback at a nonzero elapsed time from a source that
contains no offset, such as a cuesheet

The change re-versions pretty much everything from tagcache to nvram.

Change-Id: Ic7aebb24e99a03ae99585c5e236eba960d163f38
Reviewed-on: http://gerrit.rockbox.org/516
Reviewed-by: Michael Sevakis <jethead71@rockbox.org>
Tested: Michael Sevakis <jethead71@rockbox.org>
This commit is contained in:
Michael Sevakis 2013-07-14 07:59:39 -04:00
parent dda54b85da
commit 31b7122867
65 changed files with 724 additions and 297 deletions
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6
apps/playlist.h
View file

@ -133,8 +133,10 @@ int playlist_add(const char *filename);
int playlist_shuffle(int random_seed, int start_index);
unsigned int playlist_get_filename_crc32(struct playlist_info *playlist,
int index);
void playlist_resume_track(int start_index, unsigned int crc, int offset);
void playlist_start(int start_index, int offset);
void playlist_resume_track(int start_index, unsigned int crc,
unsigned long elapsed, unsigned long offset);
void playlist_start(int start_index, unsigned long elapsed,
unsigned long offset);
bool playlist_check(int steps);
const char *playlist_peek(int steps, char* buf, size_t buf_size);
int playlist_next(int steps);