From 8412207d21af9b94c5bc6d36bbf850a80f7856a4 Mon Sep 17 00:00:00 2001 From: Jari Vetoniemi Date: Sat, 3 Nov 2018 17:50:26 +0200 Subject: check that device has been started --- src/pcm.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/src/pcm.c b/src/pcm.c index 7b33a1b..56e1cca 100644 --- a/src/pcm.c +++ b/src/pcm.c @@ -458,6 +458,11 @@ snd_pcm_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size) return 0; } + if (!pcm->started) { + WARNX1("playback hasn't been started"); + return 0; + } + const struct io io = { .read = cb_buffer_read, .write = cb_sio_write }; struct io_state state = { .pcm = pcm, .ptr = buffer, .end = (unsigned char*)buffer + snd_pcm_frames_to_bytes(pcm, size) }; @@ -499,6 +504,11 @@ snd_pcm_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size) return 0; } + if (!pcm->started) { + WARNX1("recording hasn't been started"); + return 0; + } + const struct io io = { .read = cb_sio_read, .write = cb_buffer_write }; struct io_state state = { .pcm = pcm, .ptr = buffer, .end = (unsigned char*)buffer + snd_pcm_frames_to_bytes(pcm, size) }; -- cgit v1.2.3