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buffer: don't use ringbuffer in chunk

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We can't use a ringbuffer on the chunk because it implies the
consumer would write to it to update the read position, which we
can't do because the chunk is read-only and might even be shared.
Go back to offset/size pairs, which can sortof do the same thing
if we want later when we keep a non-shared read pointer in the
consumer.
Keep alsa timestamp around and filled state for future.
mmap the input port meta/data/chunk as read-only.
Only do clock update requests when asked.
This commit is contained in:
Wim Taymans 2017-11-21 12:30:15 +01:00
parent 2ad722b579
commit 4288a634f4
25 changed files with 165 additions and 126 deletions
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3
spa/plugins/test/fakesink.c
View file

@ -267,7 +267,8 @@ static int consume_buffer(struct impl *this)
render_buffer(this, b);
spa_ringbuffer_set_avail(&b->outbuf->datas[0].chunk->area, n_bytes);
b->outbuf->datas[0].chunk->offset = 0;
b->outbuf->datas[0].chunk->size = n_bytes;
b->outbuf->datas[0].chunk->stride = n_bytes;
if (b->h) {

3
spa/plugins/test/fakesrc.c
View file

@ -279,7 +279,8 @@ static int make_buffer(struct impl *this)
fill_buffer(this, b);
spa_ringbuffer_set_avail(&b->outbuf->datas[0].chunk->area, n_bytes);
b->outbuf->datas[0].chunk->offset = 0;
b->outbuf->datas[0].chunk->size = n_bytes;
b->outbuf->datas[0].chunk->stride = n_bytes;
if (b->h) {