/* * Underrun and suspend recovery */ static gint xrun_recovery (GstAlsaSink * alsa, snd_pcm_t * handle, gint err) { GST_WARNING_OBJECT (alsa, "xrun recovery %d: %s", err, g_strerror (-err)); if (err == -EPIPE) { /* under-run */ err = snd_pcm_prepare (handle); if (err < 0) GST_WARNING_OBJECT (alsa, "Can't recover from underrun, prepare failed: %s", snd_strerror (err)); gst_audio_base_sink_report_device_failure (GST_AUDIO_BASE_SINK (alsa)); return 0; } else if (err == -ESTRPIPE) { while ((err = snd_pcm_resume (handle)) == -EAGAIN) g_usleep (100); /* wait until the suspend flag is released */ if (err < 0) { err = snd_pcm_prepare (handle); if (err < 0) GST_WARNING_OBJECT (alsa, "Can't recover from suspend, prepare failed: %s", snd_strerror (err)); } if (err == 0) gst_audio_base_sink_report_device_failure (GST_AUDIO_BASE_SINK (alsa)); return 0; } return err; }
static void gst_opensles_sink_init (GstOpenSLESSink * sink) { sink->volume = DEFAULT_VOLUME; sink->mute = DEFAULT_MUTE; _opensles_query_capabilities (sink); gst_audio_base_sink_set_provide_clock (GST_AUDIO_BASE_SINK (sink), TRUE); /* Override some default values to fit on the AudioFlinger behaviour of * processing 20ms buffers as minimum buffer size. */ GST_AUDIO_BASE_SINK (sink)->buffer_time = 400000; GST_AUDIO_BASE_SINK (sink)->latency_time = 20000; }
static void gst_opensles_sink_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstOpenSLESSink *sink = GST_OPENSLES_SINK (object); GstAudioRingBuffer *rb = GST_AUDIO_BASE_SINK (sink)->ringbuffer; switch (prop_id) { case PROP_VOLUME: sink->volume = g_value_get_double (value); if (rb && GST_IS_OPENSLES_RING_BUFFER (rb)) { gst_opensles_ringbuffer_set_volume (rb, sink->volume); } break; case PROP_MUTE: sink->mute = g_value_get_boolean (value); if (rb && GST_IS_OPENSLES_RING_BUFFER (rb)) { gst_opensles_ringbuffer_set_mute (rb, sink->mute); } break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } }
static void gst_osx_audio_sink_set_volume (GstOsxAudioSink * sink) { GstOsxAudioRingBuffer *osxbuf; osxbuf = GST_OSX_AUDIO_RING_BUFFER (GST_AUDIO_BASE_SINK (sink)->ringbuffer); if (!osxbuf) return; gst_core_audio_set_volume (osxbuf->core_audio, sink->volume); }
static gboolean gst_alsasink_prepare (GstAudioSink * asink, GstAudioRingBufferSpec * spec) { GstAlsaSink *alsa; gint err; alsa = GST_ALSA_SINK (asink); if (alsa->iec958) { snd_pcm_close (alsa->handle); alsa->handle = gst_alsa_open_iec958_pcm (GST_OBJECT (alsa), alsa->device); if (G_UNLIKELY (!alsa->handle)) { goto no_iec958; } } if (!alsasink_parse_spec (alsa, spec)) goto spec_parse; CHECK (set_hwparams (alsa), hw_params_failed); CHECK (set_swparams (alsa), sw_params_failed); alsa->bpf = GST_AUDIO_INFO_BPF (&spec->info); spec->segsize = alsa->period_size * alsa->bpf; spec->segtotal = alsa->buffer_size / alsa->period_size; { snd_output_t *out_buf = NULL; char *msg = NULL; snd_output_buffer_open (&out_buf); snd_pcm_dump_hw_setup (alsa->handle, out_buf); snd_output_buffer_string (out_buf, &msg); GST_DEBUG_OBJECT (alsa, "Hardware setup: \n%s", msg); snd_output_close (out_buf); snd_output_buffer_open (&out_buf); snd_pcm_dump_sw_setup (alsa->handle, out_buf); snd_output_buffer_string (out_buf, &msg); GST_DEBUG_OBJECT (alsa, "Software setup: \n%s", msg); snd_output_close (out_buf); } #ifdef SND_CHMAP_API_VERSION alsa_detect_channels_mapping (GST_OBJECT (alsa), alsa->handle, spec, alsa->channels, GST_AUDIO_BASE_SINK (alsa)->ringbuffer); #endif /* SND_CHMAP_API_VERSION */ return TRUE; /* ERRORS */ no_iec958: { GST_ELEMENT_ERROR (alsa, RESOURCE, OPEN_WRITE, (NULL), ("Could not open IEC958 (SPDIF) device for playback")); return FALSE; } spec_parse: { GST_ELEMENT_ERROR (alsa, RESOURCE, SETTINGS, (NULL), ("Error parsing spec")); return FALSE; } hw_params_failed: { GST_ELEMENT_ERROR (alsa, RESOURCE, SETTINGS, (NULL), ("Setting of hwparams failed: %s", snd_strerror (err))); return FALSE; } sw_params_failed: { GST_ELEMENT_ERROR (alsa, RESOURCE, SETTINGS, (NULL), ("Setting of swparams failed: %s", snd_strerror (err))); return FALSE; } }
static gboolean alsasink_parse_spec (GstAlsaSink * alsa, GstAudioRingBufferSpec * spec) { /* Initialize our boolean */ alsa->iec958 = FALSE; switch (spec->type) { case GST_AUDIO_RING_BUFFER_FORMAT_TYPE_RAW: switch (GST_AUDIO_INFO_FORMAT (&spec->info)) { case GST_AUDIO_FORMAT_U8: alsa->format = SND_PCM_FORMAT_U8; break; case GST_AUDIO_FORMAT_S8: alsa->format = SND_PCM_FORMAT_S8; break; case GST_AUDIO_FORMAT_S16LE: alsa->format = SND_PCM_FORMAT_S16_LE; break; case GST_AUDIO_FORMAT_S16BE: alsa->format = SND_PCM_FORMAT_S16_BE; break; case GST_AUDIO_FORMAT_U16LE: alsa->format = SND_PCM_FORMAT_U16_LE; break; case GST_AUDIO_FORMAT_U16BE: alsa->format = SND_PCM_FORMAT_U16_BE; break; case GST_AUDIO_FORMAT_S24_32LE: alsa->format = SND_PCM_FORMAT_S24_LE; break; case GST_AUDIO_FORMAT_S24_32BE: alsa->format = SND_PCM_FORMAT_S24_BE; break; case GST_AUDIO_FORMAT_U24_32LE: alsa->format = SND_PCM_FORMAT_U24_LE; break; case GST_AUDIO_FORMAT_U24_32BE: alsa->format = SND_PCM_FORMAT_U24_BE; break; case GST_AUDIO_FORMAT_S32LE: alsa->format = SND_PCM_FORMAT_S32_LE; break; case GST_AUDIO_FORMAT_S32BE: alsa->format = SND_PCM_FORMAT_S32_BE; break; case GST_AUDIO_FORMAT_U32LE: alsa->format = SND_PCM_FORMAT_U32_LE; break; case GST_AUDIO_FORMAT_U32BE: alsa->format = SND_PCM_FORMAT_U32_BE; break; case GST_AUDIO_FORMAT_S24LE: alsa->format = SND_PCM_FORMAT_S24_3LE; break; case GST_AUDIO_FORMAT_S24BE: alsa->format = SND_PCM_FORMAT_S24_3BE; break; case GST_AUDIO_FORMAT_U24LE: alsa->format = SND_PCM_FORMAT_U24_3LE; break; case GST_AUDIO_FORMAT_U24BE: alsa->format = SND_PCM_FORMAT_U24_3BE; break; case GST_AUDIO_FORMAT_S20LE: alsa->format = SND_PCM_FORMAT_S20_3LE; break; case GST_AUDIO_FORMAT_S20BE: alsa->format = SND_PCM_FORMAT_S20_3BE; break; case GST_AUDIO_FORMAT_U20LE: alsa->format = SND_PCM_FORMAT_U20_3LE; break; case GST_AUDIO_FORMAT_U20BE: alsa->format = SND_PCM_FORMAT_U20_3BE; break; case GST_AUDIO_FORMAT_S18LE: alsa->format = SND_PCM_FORMAT_S18_3LE; break; case GST_AUDIO_FORMAT_S18BE: alsa->format = SND_PCM_FORMAT_S18_3BE; break; case GST_AUDIO_FORMAT_U18LE: alsa->format = SND_PCM_FORMAT_U18_3LE; break; case GST_AUDIO_FORMAT_U18BE: alsa->format = SND_PCM_FORMAT_U18_3BE; break; case GST_AUDIO_FORMAT_F32LE: alsa->format = SND_PCM_FORMAT_FLOAT_LE; break; case GST_AUDIO_FORMAT_F32BE: alsa->format = SND_PCM_FORMAT_FLOAT_BE; break; case GST_AUDIO_FORMAT_F64LE: alsa->format = SND_PCM_FORMAT_FLOAT64_LE; break; case GST_AUDIO_FORMAT_F64BE: alsa->format = SND_PCM_FORMAT_FLOAT64_BE; break; default: goto error; } break; case GST_AUDIO_RING_BUFFER_FORMAT_TYPE_A_LAW: alsa->format = SND_PCM_FORMAT_A_LAW; break; case GST_AUDIO_RING_BUFFER_FORMAT_TYPE_MU_LAW: alsa->format = SND_PCM_FORMAT_MU_LAW; break; case GST_AUDIO_RING_BUFFER_FORMAT_TYPE_AC3: case GST_AUDIO_RING_BUFFER_FORMAT_TYPE_EAC3: case GST_AUDIO_RING_BUFFER_FORMAT_TYPE_DTS: case GST_AUDIO_RING_BUFFER_FORMAT_TYPE_MPEG: alsa->format = SND_PCM_FORMAT_S16_BE; alsa->iec958 = TRUE; break; default: goto error; } alsa->rate = GST_AUDIO_INFO_RATE (&spec->info); alsa->channels = GST_AUDIO_INFO_CHANNELS (&spec->info); alsa->buffer_time = spec->buffer_time; alsa->period_time = spec->latency_time; alsa->access = SND_PCM_ACCESS_RW_INTERLEAVED; if (spec->type == GST_AUDIO_RING_BUFFER_FORMAT_TYPE_RAW && alsa->channels < 9) gst_audio_ring_buffer_set_channel_positions (GST_AUDIO_BASE_SINK (alsa)->ringbuffer, alsa_position[alsa->channels - 1]); return TRUE; /* ERRORS */ error: { return FALSE; } }