diff options
Diffstat (limited to 'lib/igt_alsa.c')
| -rw-r--r-- | lib/igt_alsa.c | 42 |
1 files changed, 38 insertions, 4 deletions
diff --git a/lib/igt_alsa.c b/lib/igt_alsa.c index bb6682cc..22089881 100644 --- a/lib/igt_alsa.c +++ b/lib/igt_alsa.c @@ -26,9 +26,11 @@ #include "config.h" +#include <limits.h> #include <alsa/asoundlib.h> #include "igt_alsa.h" +#include "igt_aux.h" #include "igt_core.h" #define HANDLES_MAX 8 @@ -61,6 +63,26 @@ struct alsa { int input_samples_trigger; }; +/** + * alsa_has_exclusive_access: + * Check whether ALSA has exclusive access to audio devices. Fails if + * PulseAudio is running. + */ +bool alsa_has_exclusive_access(void) +{ + if (igt_is_process_running("pulseaudio")) { + igt_warn("alsa doesn't have exclusive access to audio devices\n"); + igt_warn("It seems that PulseAudio is running. Audio tests " + "need direct access to audio devices, so PulseAudio " + "needs to be stopped. You can do so by running " + "`pulseaudio --kill`. Also make sure to add " + "autospawn=no to /etc/pulse/client.conf\n"); + return false; + } + + return true; +} + static void alsa_error_handler(const char *file, int line, const char *function, int err, const char *fmt, ...) { @@ -78,6 +100,10 @@ struct alsa *alsa_init(void) { struct alsa *alsa; + if (!alsa_has_exclusive_access()) { + return NULL; + } + alsa = malloc(sizeof(struct alsa)); memset(alsa, 0, sizeof(struct alsa)); @@ -553,16 +579,20 @@ int alsa_run(struct alsa *alsa, int duration_ms) if (ret < 0) { ret = snd_pcm_recover(handle, ret, 0); - if (ret < 0) + if (ret < 0) { + igt_debug("snd_pcm_recover after snd_pcm_writei failed"); goto complete; + } } output_counts[i] += ret; } else if (output_counts[i] < output_trigger && ret < 0) { ret = snd_pcm_recover(handle, ret, 0); - if (ret < 0) + if (ret < 0) { + igt_debug("snd_pcm_recover failed"); goto complete; + } } } @@ -609,16 +639,20 @@ int alsa_run(struct alsa *alsa, int duration_ms) ret = 0; } else if (ret < 0) { ret = snd_pcm_recover(handle, ret, 0); - if (ret < 0) + if (ret < 0) { + igt_debug("snd_pcm_recover after snd_pcm_readi failed"); goto complete; + } } input_count += ret; input_total += ret; } else if (input_count < input_trigger && ret < 0) { ret = snd_pcm_recover(handle, ret, 0); - if (ret < 0) + if (ret < 0) { + igt_debug("snd_pcm_recover failed"); goto complete; + } } } } while (!reached); |