kekePower/rdesktop
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Fondle the device a bit more carefully when recording to guarantee that we

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properly sync up with the data stream. This is crucial to get reliable
behaviour on multi-byte frames.


git-svn-id: svn://svn.code.sf.net/p/rdesktop/code/trunk/rdesktop@1431 423420c4-83ab-492f-b58f-81f9feb106b5
This commit is contained in:
Pierre Ossman 2008-02-08 10:36:28 +00:00
parent adb6acbbee
commit 05836bf86c
1 changed files with 75 additions and 0 deletions
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75
rdpsnd_sun.c
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@ -57,6 +57,41 @@ static uint_t written_samples;
void sun_play(void);
void sun_record(void);
static int
sun_pause(void)
{
audio_info_t info;
AUDIO_INITINFO(&info);
info.record.pause = 1;
if (ioctl(dsp_fd, AUDIO_SETINFO, &info) == -1)
return -1;
#if defined I_FLUSH && defined FLUSHR
if (ioctl(dsp_fd, I_FLUSH, FLUSHR) == -1)
return -1;
#endif
return 0;
}
static int
sun_resume(void)
{
audio_info_t info;
AUDIO_INITINFO(&info);
info.record.pause = 0;
if (ioctl(dsp_fd, AUDIO_SETINFO, &info) == -1)
return -1;
return 0;
}
void
sun_add_fds(int *n, fd_set * rfds, fd_set * wfds, struct timeval *tv)
{
@ -130,6 +165,19 @@ sun_open(int mode)
}
}
/*
* Pause recording until we actually start using it.
*/
if (dsp_mode != O_WRONLY)
{
if (sun_pause() == -1)
{
close(dsp_fd);
dsp_fd = -1;
return False;
}
}
dsp_refs++;
return True;
@ -181,9 +229,26 @@ sun_close_out(void)
RD_BOOL
sun_open_in(void)
{
#if ! (defined I_FLUSH && defined FLUSHR)
/*
* It is not possible to reliably use the recording without
* flush operations.
*/
return False;
#endif
if (!sun_open(O_RDONLY))
return False;
/*
* Unpause the stream now that we have someone using it.
*/
if (sun_resume() == -1)
{
sun_close();
return False;
}
dsp_in = True;
return True;
@ -192,6 +257,11 @@ sun_open_in(void)
void
sun_close_in(void)
{
/*
* Repause the stream when the user goes away.
*/
sun_pause();
sun_close();
dsp_in = False;
@ -234,6 +304,8 @@ sun_set_format(RD_WAVEFORMATEX * pwfx)
return True;
}
sun_pause();
if (pwfx->wBitsPerSample == 8)
{
info.play.encoding = AUDIO_ENCODING_LINEAR8;
@ -279,6 +351,9 @@ sun_set_format(RD_WAVEFORMATEX * pwfx)
dsp_configured = True;
if (dsp_in)
sun_resume();
return True;
}