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v4l2: recycle buffers when no io area

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When there is no io area to place our buffers, recycle them immediately.
Otherwise we would run out of buffers and stall.
This commit is contained in:
Wim Taymans 2022-10-24 13:16:08 +02:00
parent a57602cc4d
commit df094b3649
1 changed files with 7 additions and 2 deletions
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9
spa/plugins/v4l2/v4l2-utils.c
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@ -41,7 +41,6 @@ static int xioctl(int fd, int request, void *arg)
return err;
}
int spa_v4l2_open(struct spa_v4l2_device *dev, const char *path)
{
struct stat st;
@ -1305,7 +1304,13 @@ static void v4l2_on_fd_events(struct spa_source *source)
return;
io = port->io;
if (io != NULL && io->status != SPA_STATUS_HAVE_DATA) {
if (io == NULL) {
b = spa_list_first(&port->queue, struct buffer, link);
spa_list_remove(&b->link);
SPA_FLAG_SET(b->flags, BUFFER_FLAG_OUTSTANDING);
spa_v4l2_buffer_recycle(this, b->id);
}
else if (io->status != SPA_STATUS_HAVE_DATA) {
if (io->buffer_id < port->n_buffers)
spa_v4l2_buffer_recycle(this, io->buffer_id);