static void
gst_v4lsrc_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec)
{
GstV4lSrc *v4lsrc = GST_V4LSRC (object);
switch (prop_id) {
case PROP_AUTOPROBE:
g_return_if_fail (!GST_V4L_IS_ACTIVE (GST_V4LELEMENT (v4lsrc)));
v4lsrc->autoprobe = g_value_get_boolean (value);
break;
case PROP_AUTOPROBE_FPS:
g_return_if_fail (!GST_V4L_IS_ACTIVE (GST_V4LELEMENT (v4lsrc)));
v4lsrc->autoprobe_fps = g_value_get_boolean (value);
break;
case PROP_COPY_MODE:
v4lsrc->copy_mode = g_value_get_boolean (value);
break;
case PROP_TIMESTAMP_OFFSET:
v4lsrc->timestamp_offset = g_value_get_int64 (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstBuffer *
gst_v4lmjpegsink_buffer_new (GstBufferPool * pool,
guint64 offset, guint size, gpointer user_data)
{
GstV4lMjpegSink *v4lmjpegsink = GST_V4LMJPEGSINK (user_data);
GstBuffer *buffer = NULL;
guint8 *data;
gint num;
if (!GST_V4L_IS_ACTIVE (GST_V4LELEMENT (v4lmjpegsink)))
return NULL;
if (v4lmjpegsink->breq.size < size) {
GST_DEBUG ("Requested buffer size is too large (%d > %ld)",
size, v4lmjpegsink->breq.size);
return NULL;
}
if (!gst_v4lmjpegsink_wait_frame (v4lmjpegsink, &num))
return NULL;
data = gst_v4lmjpegsink_get_buffer (v4lmjpegsink, num);
if (!data)
return NULL;
buffer = gst_buffer_new ();
GST_BUFFER_DATA (buffer) = data;
GST_BUFFER_MAXSIZE (buffer) = v4lmjpegsink->breq.size;
GST_BUFFER_SIZE (buffer) = size;
GST_BUFFER_POOL (buffer) = pool;
GST_BUFFER_POOL_PRIVATE (buffer) = GINT_TO_POINTER (num);
/* with this flag set, we don't need our own buffer_free() function */
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_DONTFREE);
return buffer;
}
static GstPadLinkReturn
gst_v4lmjpegsink_sinkconnect (GstPad * pad, const GstCaps * vscapslist)
{
GstV4lMjpegSink *v4lmjpegsink;
GstStructure *structure;
v4lmjpegsink = GST_V4LMJPEGSINK (gst_pad_get_parent (pad));
/* in case the buffers are active (which means that we already
* did capsnego before and didn't clean up), clean up anyways */
if (GST_V4L_IS_ACTIVE (GST_V4LELEMENT (v4lmjpegsink)))
if (!gst_v4lmjpegsink_playback_deinit (v4lmjpegsink))
return GST_PAD_LINK_REFUSED;
structure = gst_caps_get_structure (vscapslist, 0);
gst_structure_get_int (structure, "width", &v4lmjpegsink->width);
gst_structure_get_int (structure, "height", &v4lmjpegsink->height);
if (!gst_v4lmjpegsink_set_playback (v4lmjpegsink, v4lmjpegsink->width, v4lmjpegsink->height, v4lmjpegsink->x_offset, v4lmjpegsink->y_offset, GST_V4LELEMENT (v4lmjpegsink)->vchan.norm, 0)) /* TODO: interlacing */
return GST_PAD_LINK_REFUSED;
/* set buffer info */
if (!gst_v4lmjpegsink_set_buffer (v4lmjpegsink,
v4lmjpegsink->numbufs, v4lmjpegsink->bufsize))
return GST_PAD_LINK_REFUSED;
if (!gst_v4lmjpegsink_playback_init (v4lmjpegsink))
return GST_PAD_LINK_REFUSED;
return GST_PAD_LINK_OK;
}
static gboolean
gst_v4lsrc_stop (GstBaseSrc * src)
{
GstV4lSrc *v4lsrc = GST_V4LSRC (src);
if (GST_V4L_IS_ACTIVE (v4lsrc) && !gst_v4lsrc_capture_stop (v4lsrc))
return FALSE;
if (GST_V4LELEMENT (v4lsrc)->buffer != NULL) {
if (!gst_v4lsrc_capture_deinit (v4lsrc))
return FALSE;
}
if (!GST_BASE_SRC_CLASS (parent_class)->stop (src))
return FALSE;
g_list_free (v4lsrc->colorspaces);
v4lsrc->colorspaces = NULL;
if (v4lsrc->fps_list) {
g_value_unset (v4lsrc->fps_list);
g_free (v4lsrc->fps_list);
v4lsrc->fps_list = NULL;
}
return TRUE;
}
static gboolean
gst_v4lsrc_set_caps (GstBaseSrc * src, GstCaps * caps)
{
GstV4lSrc *v4lsrc;
guint32 fourcc;
gint bpp, depth, w, h, palette = -1;
const GValue *new_fps;
gint cur_fps_n, cur_fps_d;
GstStructure *structure;
struct video_window *vwin;
v4lsrc = GST_V4LSRC (src);
vwin = &GST_V4LELEMENT (v4lsrc)->vwin;
/* if we're not open, punt -- we'll get setcaps'd later via negotiate */
if (!GST_V4L_IS_OPEN (v4lsrc))
return FALSE;
/* make sure we stop capturing and dealloc buffers */
if (GST_V4L_IS_ACTIVE (v4lsrc)) {
if (!gst_v4lsrc_capture_stop (v4lsrc))
return FALSE;
if (!gst_v4lsrc_capture_deinit (v4lsrc))
return FALSE;
}
/* it's fixed, one struct */
structure = gst_caps_get_structure (caps, 0);
if (strcmp (gst_structure_get_name (structure), "video/x-raw-yuv") == 0)
gst_structure_get_fourcc (structure, "format", &fourcc);
else
fourcc = GST_MAKE_FOURCC ('R', 'G', 'B', ' ');
gst_structure_get_int (structure, "width", &w);
gst_structure_get_int (structure, "height", &h);
new_fps = gst_structure_get_value (structure, "framerate");
/* set framerate if it's not already correct */
if (!gst_v4lsrc_get_fps (v4lsrc, &cur_fps_n, &cur_fps_d))
return FALSE;
if (new_fps) {
GST_DEBUG_OBJECT (v4lsrc, "linking with %dx%d at %d/%d fps", w, h,
gst_value_get_fraction_numerator (new_fps),
gst_value_get_fraction_denominator (new_fps));
if (gst_value_get_fraction_numerator (new_fps) != cur_fps_n ||
gst_value_get_fraction_denominator (new_fps) != cur_fps_d) {
int fps_index = (gst_value_get_fraction_numerator (new_fps) * 16) /
(gst_value_get_fraction_denominator (new_fps) * 15);
GST_DEBUG_OBJECT (v4lsrc, "Trying to set fps index %d", fps_index);
/* set bits 16 to 21 to 0 */
vwin->flags &= (0x3F00 - 1);
/* set bits 16 to 21 to the index */
vwin->flags |= fps_index << 16;
if (!gst_v4l_set_window_properties (GST_V4LELEMENT (v4lsrc))) {
return FALSE;
}
}
}
switch (fourcc) {
case GST_MAKE_FOURCC ('I', '4', '2', '0'):
palette = VIDEO_PALETTE_YUV420P;
v4lsrc->buffer_size = ((w + 1) & ~1) * ((h + 1) & ~1) * 1.5;
break;
case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
palette = VIDEO_PALETTE_YUV422;
v4lsrc->buffer_size = ((w + 1) & ~1) * h * 2;
break;
case GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'):
palette = VIDEO_PALETTE_UYVY;
v4lsrc->buffer_size = ((w + 1) & ~1) * h * 2;
break;
case GST_MAKE_FOURCC ('Y', '4', '1', 'B'):
palette = VIDEO_PALETTE_YUV411P;
v4lsrc->buffer_size = ((w + 3) & ~3) * h * 1.5;
break;
case GST_MAKE_FOURCC ('Y', '4', '1', 'P'):
palette = VIDEO_PALETTE_YUV411;
v4lsrc->buffer_size = ((w + 3) & ~3) * h * 1.5;
break;
case GST_MAKE_FOURCC ('Y', 'U', 'V', '9'):
palette = VIDEO_PALETTE_YUV410P;
v4lsrc->buffer_size = ((w + 3) & ~3) * ((h + 3) & ~3) * 1.125;
break;
case GST_MAKE_FOURCC ('Y', '4', '2', 'B'):
palette = VIDEO_PALETTE_YUV422P;
v4lsrc->buffer_size = ((w + 1) & ~1) * h * 2;
break;
case GST_MAKE_FOURCC ('R', 'G', 'B', ' '):
gst_structure_get_int (structure, "depth", &depth);
switch (depth) {
case 15:
palette = VIDEO_PALETTE_RGB555;
v4lsrc->buffer_size = w * h * 2;
break;
case 16:
palette = VIDEO_PALETTE_RGB565;
v4lsrc->buffer_size = w * h * 2;
break;
case 24:
gst_structure_get_int (structure, "bpp", &bpp);
switch (bpp) {
case 24:
palette = VIDEO_PALETTE_RGB24;
v4lsrc->buffer_size = w * h * 3;
break;
case 32:
palette = VIDEO_PALETTE_RGB32;
v4lsrc->buffer_size = w * h * 4;
break;
default:
break;
}
break;
default:
break;
}
break;
default:
break;
}
if (palette == -1) {
GST_WARNING_OBJECT (v4lsrc, "palette for fourcc %" GST_FOURCC_FORMAT
" is -1, refusing link", GST_FOURCC_ARGS (fourcc));
return FALSE;
}
GST_DEBUG_OBJECT (v4lsrc, "trying to set_capture %dx%d, palette %d",
w, h, palette);
/* this only fills in v4lsrc->mmap values */
if (!gst_v4lsrc_set_capture (v4lsrc, w, h, palette)) {
GST_WARNING_OBJECT (v4lsrc, "could not set_capture %dx%d, palette %d",
w, h, palette);
return FALSE;
}
/* first try the negotiated settings using try_capture */
if (!gst_v4lsrc_try_capture (v4lsrc, w, h, palette)) {
GST_DEBUG_OBJECT (v4lsrc, "failed trying palette %d for %dx%d", palette,
w, h);
return FALSE;
}
if (!gst_v4lsrc_capture_init (v4lsrc))
return FALSE;
if (!gst_v4lsrc_capture_start (v4lsrc))
return FALSE;
return TRUE;
}
static GstPadLinkReturn
gst_v4ljpegsrc_src_link (GstPad * pad, const GstCaps * vscapslist)
{
GstV4lJpegSrc *v4ljpegsrc;
GstV4lSrc *v4lsrc;
gint w, h, palette = -1;
const GValue *fps;
GstStructure *structure;
gboolean was_capturing;
struct video_window *vwin;
v4ljpegsrc = GST_V4LJPEGSRC (gst_pad_get_parent (pad));
v4lsrc = GST_V4LSRC (v4ljpegsrc);
vwin = &GST_V4LELEMENT (v4lsrc)->vwin;
was_capturing = v4lsrc->is_capturing;
/* in case the buffers are active (which means that we already
* did capsnego before and didn't clean up), clean up anyways */
if (GST_V4L_IS_ACTIVE (GST_V4LELEMENT (v4lsrc))) {
if (was_capturing) {
if (!gst_v4lsrc_capture_stop (v4lsrc))
return GST_PAD_LINK_REFUSED;
}
if (!gst_v4lsrc_capture_deinit (v4lsrc))
return GST_PAD_LINK_REFUSED;
} else if (!GST_V4L_IS_OPEN (GST_V4LELEMENT (v4lsrc))) {
return GST_PAD_LINK_DELAYED;
}
structure = gst_caps_get_structure (vscapslist, 0);
gst_structure_get_int (structure, "width", &w);
gst_structure_get_int (structure, "height", &h);
fps = gst_structure_get_value (structure, "framerate");
GST_DEBUG_OBJECT (v4ljpegsrc, "linking with %dx%d at %d/%d fps", w, h,
gst_value_get_fraction_numerator (fps),
gst_value_get_fraction_denominator (fps));
/* set framerate if it's not already correct */
if (fps != gst_v4lsrc_get_fps (v4lsrc)) {
int fps_index = fps / 15.0 * 16;
GST_DEBUG_OBJECT (v4ljpegsrc, "Trying to set fps index %d", fps_index);
/* set bits 16 to 21 to 0 */
vwin->flags &= (0x3F00 - 1);
/* set bits 16 to 21 to the index */
vwin->flags |= fps_index << 16;
if (!gst_v4l_set_window_properties (GST_V4LELEMENT (v4lsrc))) {
return GST_PAD_LINK_DELAYED;
}
}
/*
* Try to set the camera to capture RGB24
*/
palette = VIDEO_PALETTE_RGB24;
v4lsrc->buffer_size = w * h * 3;
GST_DEBUG_OBJECT (v4ljpegsrc, "trying to set_capture %dx%d, palette %d",
w, h, palette);
/* this only fills in v4lsrc->mmap values */
if (!gst_v4lsrc_set_capture (v4lsrc, w, h, palette)) {
GST_WARNING_OBJECT (v4ljpegsrc, "could not set_capture %dx%d, palette %d",
w, h, palette);
return GST_PAD_LINK_REFUSED;
}
/* first try the negotiated settings using try_capture */
if (!gst_v4lsrc_try_capture (v4lsrc, w, h, palette)) {
GST_DEBUG_OBJECT (v4ljpegsrc, "failed trying palette %d for %dx%d", palette,
w, h);
return GST_PAD_LINK_REFUSED;
}
if (!gst_v4lsrc_capture_init (v4lsrc))
return GST_PAD_LINK_REFUSED;
if (was_capturing || GST_STATE (v4lsrc) == GST_STATE_PLAYING) {
if (!gst_v4lsrc_capture_start (v4lsrc))
return GST_PAD_LINK_REFUSED;
}
return GST_PAD_LINK_OK;
}
