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node: Add id to set_io

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Make it possible to configure multiple io areas on a port by giving
an id to set_io.
Add some types to enumerate the supported ids
Make an area to exchange buffers and one to specify pull ranges.
The idea is to make more area types for controlable properties.
Implement enumeration of IO areas in volume.
This commit is contained in:
Wim Taymans 2017-11-21 19:34:37 +01:00
parent 4288a634f4
commit 8efea3e1ea
40 changed files with 583 additions and 208 deletions
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2
spa/plugins/v4l2/v4l2-utils.c
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@ -902,7 +902,7 @@ static int mmap_read(struct impl *this)
struct buffer *b;
struct spa_data *d;
int64_t pts;
struct spa_port_io *io = port->io;
struct spa_io_buffers *io = port->io;
spa_zero(buf);
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;