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vlc-1.1
Commit fcf29754 authored by Benjamin Pracht's avatar Benjamin Pracht
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Dirty hack to make devices using snd_intel8x0 drivers happy with 96k streams

parent 4d9b753a
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Showing with 88 additions and 68 deletions
modules/audio_output/alsa.c
View file @ fcf29754
......@@ -304,6 +304,7 @@ static int Open( vlc_object_t *p_this )
int i_snd_rc = -1;
unsigned int i_old_rate;
vlc_bool_t b_retry = VLC_TRUE;
/* Allocate structures */
p_aout->output.p_sys = p_sys = malloc( sizeof( aout_sys_t ) );
......@@ -493,113 +494,132 @@ static int Open( vlc_object_t *p_this )
snd_pcm_hw_params_alloca(&p_hw);
snd_pcm_sw_params_alloca(&p_sw);
/* Get Initial hardware parameters */
if ( ( i_snd_rc = snd_pcm_hw_params_any( p_sys->p_snd_pcm, p_hw ) ) < 0 )
/* Due to some bugs in alsa with some drivers, we need to retry in s16l
if snd_pcm_hw_params fails in fl32 */
while ( b_retry )
{
msg_Err( p_aout, "unable to retrieve initial hardware parameters (%s)",
b_retry = VLC_FALSE;
/* Get Initial hardware parameters */
if ( ( i_snd_rc = snd_pcm_hw_params_any( p_sys->p_snd_pcm, p_hw ) ) < 0 )
{
msg_Err( p_aout, "unable to retrieve initial hardware parameters (%s)",
snd_strerror( i_snd_rc ) );
goto error;
}
goto error;
}
/* Set format. */
if ( ( i_snd_rc = snd_pcm_hw_params_set_format( p_sys->p_snd_pcm, p_hw,
/* Set format. */
if ( ( i_snd_rc = snd_pcm_hw_params_set_format( p_sys->p_snd_pcm, p_hw,
i_snd_pcm_format ) ) < 0 )
{
if( i_snd_pcm_format != SND_PCM_FORMAT_S16 )
{
i_snd_pcm_format = SND_PCM_FORMAT_S16;
i_snd_rc = snd_pcm_hw_params_set_format( p_sys->p_snd_pcm,
if( i_snd_pcm_format != SND_PCM_FORMAT_S16 )
{
i_snd_pcm_format = SND_PCM_FORMAT_S16;
i_snd_rc = snd_pcm_hw_params_set_format( p_sys->p_snd_pcm,
p_hw, i_snd_pcm_format );
}
if ( i_snd_rc < 0 )
{
msg_Err( p_aout, "unable to set stream sample size and "
"word order (%s)", snd_strerror( i_snd_rc ) );
goto error;
}
}
if ( i_snd_rc < 0 )
if( i_vlc_pcm_format != VLC_FOURCC('s','p','d','i') )
switch( i_snd_pcm_format )
{
msg_Err( p_aout, "unable to set stream sample size and "
"word order (%s)", snd_strerror( i_snd_rc ) );
goto error;
case SND_PCM_FORMAT_FLOAT:
i_vlc_pcm_format = VLC_FOURCC('f','l','3','2');
break;
case SND_PCM_FORMAT_S16:
i_vlc_pcm_format = AOUT_FMT_S16_NE;
break;
}
}
if( i_vlc_pcm_format != VLC_FOURCC('s','p','d','i') )
switch( i_snd_pcm_format )
{
case SND_PCM_FORMAT_FLOAT:
i_vlc_pcm_format = VLC_FOURCC('f','l','3','2');
break;
case SND_PCM_FORMAT_S16:
i_vlc_pcm_format = AOUT_FMT_S16_NE;
break;
}
p_aout->output.output.i_format = i_vlc_pcm_format;
p_aout->output.output.i_format = i_vlc_pcm_format;
if ( ( i_snd_rc = snd_pcm_hw_params_set_access( p_sys->p_snd_pcm, p_hw,
if ( ( i_snd_rc = snd_pcm_hw_params_set_access( p_sys->p_snd_pcm, p_hw,
SND_PCM_ACCESS_RW_INTERLEAVED ) ) < 0 )
{
msg_Err( p_aout, "unable to set interleaved stream format (%s)",
snd_strerror( i_snd_rc ) );
goto error;
}
{
msg_Err( p_aout, "unable to set interleaved stream format (%s)",
snd_strerror( i_snd_rc ) );
goto error;
}
/* Set channels. */
if ( ( i_snd_rc = snd_pcm_hw_params_set_channels( p_sys->p_snd_pcm, p_hw,
/* Set channels. */
if ( ( i_snd_rc = snd_pcm_hw_params_set_channels( p_sys->p_snd_pcm, p_hw,
i_channels ) ) < 0 )
{
msg_Err( p_aout, "unable to set number of output channels (%s)",
snd_strerror( i_snd_rc ) );
goto error;
}
{
msg_Err( p_aout, "unable to set number of output channels (%s)",
snd_strerror( i_snd_rc ) );
goto error;
}
/* Set rate. */
i_old_rate = p_aout->output.output.i_rate;
/* Set rate. */
i_old_rate = p_aout->output.output.i_rate;
#ifdef HAVE_ALSA_NEW_API
i_snd_rc = snd_pcm_hw_params_set_rate_near( p_sys->p_snd_pcm, p_hw,
i_snd_rc = snd_pcm_hw_params_set_rate_near( p_sys->p_snd_pcm, p_hw,
&p_aout->output.output.i_rate,
NULL );
#else
i_snd_rc = snd_pcm_hw_params_set_rate_near( p_sys->p_snd_pcm, p_hw,
i_snd_rc = snd_pcm_hw_params_set_rate_near( p_sys->p_snd_pcm, p_hw,
p_aout->output.output.i_rate,
NULL );
#endif
if( i_snd_rc < 0 || p_aout->output.output.i_rate != i_old_rate )
{
msg_Warn( p_aout, "The rate %d Hz is not supported by your hardware. "
if( i_snd_rc < 0 || p_aout->output.output.i_rate != i_old_rate )
{
msg_Warn( p_aout, "The rate %d Hz is not supported by your hardware. "
"Using %d Hz instead.\n", i_old_rate,
p_aout->output.output.i_rate );
}
}
/* Set buffer size. */
/* Set buffer size. */
#ifdef HAVE_ALSA_NEW_API
if ( ( i_snd_rc = snd_pcm_hw_params_set_buffer_size_near( p_sys->p_snd_pcm,
if ( ( i_snd_rc = snd_pcm_hw_params_set_buffer_size_near( p_sys->p_snd_pcm,
p_hw, &i_buffer_size ) ) < 0 )
#else
if ( ( i_snd_rc = snd_pcm_hw_params_set_buffer_size_near( p_sys->p_snd_pcm,
if ( ( i_snd_rc = snd_pcm_hw_params_set_buffer_size_near( p_sys->p_snd_pcm,
p_hw, i_buffer_size ) ) < 0 )
#endif
{
msg_Err( p_aout, "unable to set buffer size (%s)",
{
msg_Err( p_aout, "unable to set buffer size (%s)",
snd_strerror( i_snd_rc ) );
goto error;
}
goto error;
}
/* Set period size. */
/* Set period size. */
#ifdef HAVE_ALSA_NEW_API
if ( ( i_snd_rc = snd_pcm_hw_params_set_period_size_near( p_sys->p_snd_pcm,
if ( ( i_snd_rc = snd_pcm_hw_params_set_period_size_near( p_sys->p_snd_pcm,
p_hw, &i_period_size, NULL ) ) < 0 )
#else
if ( ( i_snd_rc = snd_pcm_hw_params_set_period_size_near( p_sys->p_snd_pcm,
if ( ( i_snd_rc = snd_pcm_hw_params_set_period_size_near( p_sys->p_snd_pcm,
p_hw, i_period_size, NULL ) ) < 0 )
#endif
{
msg_Err( p_aout, "unable to set period size (%s)",
{
msg_Err( p_aout, "unable to set period size (%s)",
snd_strerror( i_snd_rc ) );
goto error;
}
p_aout->output.i_nb_samples = i_period_size;
goto error;
}
p_aout->output.i_nb_samples = i_period_size;
/* Commit hardware parameters. */
if ( ( i_snd_rc = snd_pcm_hw_params( p_sys->p_snd_pcm, p_hw ) ) < 0 )
{
msg_Err( p_aout, "unable to commit hardware configuration (%s)",
/* Commit hardware parameters. */
if ( ( i_snd_rc = snd_pcm_hw_params( p_sys->p_snd_pcm, p_hw ) ) < 0 )
{
if ( b_retry == VLC_FALSE &&
i_snd_pcm_format == SND_PCM_FORMAT_FLOAT)
{
b_retry = VLC_TRUE;
i_snd_pcm_format = SND_PCM_FORMAT_S16;
p_aout->output.output.i_format = AOUT_FMT_S16_NE;
msg_Warn( p_aout, "unable to commit hardware configuration "
"with fl32 samples. Retrying with s16l (%s)", snd_strerror( i_snd_rc ) );
}
else
{
msg_Err( p_aout, "unable to commit hardware configuration (%s)",
snd_strerror( i_snd_rc ) );
goto error;
goto error;
}
}
}
#ifdef HAVE_ALSA_NEW_API
......
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