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v4l2: continue work on the capture device

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Remove activate and deactivate commands.
Add STEP property range type for v4l2 frame sizes later
v4l2: implement negotiation and data capture
This commit is contained in:
Wim Taymans 2016-07-06 19:43:37 +02:00
parent beedb65f00
commit a1a27328e2
17 changed files with 976 additions and 308 deletions
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37
spa/plugins/alsa/alsa-utils.c
View file

@ -310,6 +310,9 @@ spa_alsa_open (SpaALSASink *this)
SpaALSAState *state = &this->state;
int err;
if (state->opened)
return 0;
CHECK (snd_output_stdio_attach (&state->output, stdout, 0), "attach failed");
printf ("Playback device is '%s'\n", this->props.device);
@ -321,15 +324,36 @@ spa_alsa_open (SpaALSASink *this)
SND_PCM_NO_AUTO_CHANNELS |
SND_PCM_NO_AUTO_FORMAT), "open failed");
state->opened = true;
return 0;
}
static int
spa_alsa_close (SpaALSASink *this)
{
SpaALSAState *state = &this->state;
int err = 0;
if (!state->opened)
return 0;
CHECK (snd_pcm_close (state->handle), "close failed");
state->opened = false;
return err;
}
static int
spa_alsa_start (SpaALSASink *this)
{
SpaALSAState *state = &this->state;
int err;
if (spa_alsa_open (this) < 0)
return -1;
CHECK (set_hwparams (this), "hwparams");
CHECK (set_swparams (this), "swparams");
@ -352,16 +376,7 @@ spa_alsa_stop (SpaALSASink *this)
state->running = false;
pthread_join (state->thread, NULL);
}
spa_alsa_close (this);
return 0;
}
static int
spa_alsa_close (SpaALSASink *this)
{
SpaALSAState *state = &this->state;
int err = 0;
CHECK (snd_pcm_close (state->handle), "close failed");
return err;
}