Move the DSPs to the output node, so they don't get closed and reopened
across each file. Also restructure the output handler to buffer a little
on its own, to account for track switch activity.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
Buffers were being treated as empty before they were actually processed,
due to races between the current node's end of stream marker and
actually feeding the output buffer.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
DSPs should not be performing a cascading reset when resetting just
their own buffers, for example, on init or shutdown of just that one
DSP filter.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
Check for paused processing state in various places, so that startup
playback works properly, and resume playback at seek offset works
properly and doesn't hang the player.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
Upstream functions which return empty chunks on error do not return nil,
so the caller should check for an empty duration instead.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
Sample block merging code should not be duplicated across the DSPs that
require it, but instead should be a common function. Also added some
optimizations to the Float32 converter function, to bypass conversion if
the audio format needs no conversion.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
Audio Chunks now have full timestamp accounting, including DSP playback
speed ratio for the one DSP that can change play ratio, Rubber Band.
Inputs which support looping and actually reporting the absolute play
position now do so.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
FreeSurround, like the Equalizer, which attempt to coalesce Audio Chunks
into larger blocks of 4096 samples, must check if the audio format has
changed between blocks, and stop stacking chunks together when a new
format is detected. They will continue processing with less sample data
than expected, as necessary.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
