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implemented set_active, enable and disable routines for v4l2 capture

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implemented pause v4l2 capture
This commit is contained in:
niels
2011-04-11 00:19:36 +02:00
parent 817373cc57
commit fa73aa5d67
2 changed files with 51 additions and 4 deletions
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35
veejay-current/veejay-server/libstream/v4l2utils.c
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@@ -43,7 +43,6 @@
*/
//@ FIXME: fix greyscale
//@ FIXME: not all drivers implement TRY_FMT
//@ FIXME: find maximum width/height: start with large and TRY_FMT
//@ TODO: add support for tuner (set frequency)
@@ -114,6 +113,7 @@ typedef struct
VJFrame *buffer_filled;
uint8_t *tmpbuf;
int is_streaming;
int pause_read;
AVCodec *codec;
AVCodecContext *c;
@@ -413,7 +413,7 @@ static int v4l2_try_pix_format( v4l2info *v, int pixelformat, int wid, int hei,
if( greycap ) {
int gc = atoi(greycap);
if( gc == 1 ) {
v4l2_pixel_format = V4L2_PIX_FMT_GREY; //@ FIXME
v4l2_pixel_format = V4L2_PIX_FMT_GREY;
veejay_msg(VEEJAY_MSG_DEBUG, "v4l2: setting grey scale (env)");
v->grey=1;
}
@@ -913,6 +913,7 @@ v4l2_rw_fallback:
v->buffers[0].length = v->sizeimage;
v->buffers[0].start = malloc( v->sizeimage * 2 );
}
@@ -1022,6 +1023,10 @@ int v4l2_pull_frame(void *vv,VJFrame *dst)
int n = 0;
v4l2info *v = (v4l2info*) vv;
if( (v->rw == 1 && v->pause_read ) || (v->rw == 0 && !v->is_streaming) )
return 0;
if( v->scaler == NULL ) {
int tmp = dst->format;
sws_template templ;
@@ -1703,6 +1708,11 @@ static void *v4l2_grabber_thread( void *v )
while( 1 ) {
int err = (v4l2->rw);
if( ( !v4l2->is_streaming && v4l2->rw == 0 ) || ( v4l2->rw == 1 && v4l2->pause_read ) ) {
usleep(1000);
continue;
}
while( ( err = v4l2_poll( v4l2, 1, 200 ) ) < 0 ) {
if( !(err == -1) ) {
break;
@@ -1750,6 +1760,27 @@ int v4l2_thread_start( v4l2_thread_info *i )
return 0;
}
void v4l2_thread_set_status( v4l2_thread_info *i, int status )
{
v4l2info *v = (v4l2info* )i->v4l2;
lock_(i);
if( v->rw == 0 ) {
if( status == 0 ) {
v4l2_stop_video_capture(i->v4l2);
v4l2_vidioc_qbuf( i->v4l2 );
} else {
v4l2_start_video_capture(i->v4l2);
}
} else {
if( status == 0 ) {
v->pause_read = 1;
} else {
v->pause_read = 0;
}
}
unlock_(i);
}
void v4l2_thread_stop( v4l2_thread_info *i )
{
lock_(i);