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-rw-r--r--sys/v4l2/v4l2src_calls.c304
1 files changed, 160 insertions, 144 deletions
diff --git a/sys/v4l2/v4l2src_calls.c b/sys/v4l2/v4l2src_calls.c
index 8b3276a6..00d710eb 100644
--- a/sys/v4l2/v4l2src_calls.c
+++ b/sys/v4l2/v4l2src_calls.c
@@ -56,7 +56,7 @@
******************************************************/
gboolean
-gst_v4l2src_fill_format_list (GstV4l2Src *v4l2src)
+gst_v4l2src_fill_format_list (GstV4l2Src * v4l2src)
{
gint n;
struct v4l2_fmtdesc *format;
@@ -64,22 +64,24 @@ gst_v4l2src_fill_format_list (GstV4l2Src *v4l2src)
GST_DEBUG_OBJECT (v4l2src, "getting src format enumerations");
/* format enumeration */
- for (n=0;;n++) {
+ for (n = 0;; n++) {
format = g_new (struct v4l2_fmtdesc, 1);
+
format->index = n;
format->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_ENUM_FMT, format) < 0) {
+ if (ioctl (GST_V4L2ELEMENT (v4l2src)->video_fd, VIDIOC_ENUM_FMT,
+ format) < 0) {
if (errno == EINVAL) {
- break; /* end of enumeration */
+ break; /* end of enumeration */
} else {
GST_ELEMENT_ERROR (v4l2src, RESOURCE, SETTINGS, (NULL),
("failed to get number %d in pixelformat enumeration for %s: %s",
- n, GST_V4L2ELEMENT(v4l2src)->device, g_strerror (errno)));
+ n, GST_V4L2ELEMENT (v4l2src)->device, g_strerror (errno)));
g_free (format);
return FALSE;
}
}
- GST_LOG_OBJECT (v4l2src, "got format"GST_FOURCC_FORMAT,
+ GST_LOG_OBJECT (v4l2src, "got format" GST_FOURCC_FORMAT,
GST_FOURCC_ARGS (format->pixelformat));
v4l2src->formats = g_slist_prepend (v4l2src->formats, format);
}
@@ -95,7 +97,7 @@ gst_v4l2src_fill_format_list (GstV4l2Src *v4l2src)
******************************************************/
gboolean
-gst_v4l2src_clear_format_list (GstV4l2Src *v4l2src)
+gst_v4l2src_clear_format_list (GstV4l2Src * v4l2src)
{
g_slist_foreach (v4l2src->formats, (GFunc) g_free, NULL);
g_slist_free (v4l2src->formats);
@@ -111,15 +113,16 @@ gst_v4l2src_clear_format_list (GstV4l2Src *v4l2src)
******************************************************/
gboolean
-gst_v4l2src_queue_frame (GstV4l2Src *v4l2src,
- guint i)
+gst_v4l2src_queue_frame (GstV4l2Src * v4l2src, guint i)
{
GST_LOG_OBJECT (v4l2src, "queueing frame %u", i);
- if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_QBUF, &v4l2src->pool->buffers[i].buffer) < 0) {
+ if (ioctl (GST_V4L2ELEMENT (v4l2src)->video_fd, VIDIOC_QBUF,
+ &v4l2src->pool->buffers[i].buffer) < 0) {
GST_ELEMENT_ERROR (v4l2src, RESOURCE, WRITE,
- (_("Could not write to device \"%s\"."), GST_V4L2ELEMENT(v4l2src)->device),
- ("Error queueing buffer %u on device %s", i, g_strerror(errno)));
+ (_("Could not write to device \"%s\"."),
+ GST_V4L2ELEMENT (v4l2src)->device),
+ ("Error queueing buffer %u on device %s", i, g_strerror (errno)));
return FALSE;
}
@@ -134,16 +137,17 @@ gst_v4l2src_queue_frame (GstV4l2Src *v4l2src,
******************************************************/
gint
-gst_v4l2src_grab_frame (GstV4l2Src *v4l2src)
+gst_v4l2src_grab_frame (GstV4l2Src * v4l2src)
{
struct v4l2_buffer buffer;
-
+
buffer.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- while (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_DQBUF, &buffer) < 0) {
+ while (ioctl (GST_V4L2ELEMENT (v4l2src)->video_fd, VIDIOC_DQBUF, &buffer) < 0) {
/* if the sync() got interrupted, we can retry */
if (errno != EINTR) {
- GST_ELEMENT_ERROR (v4l2src, RESOURCE, SYNC, (NULL), ("could not sync on a buffer on device %s: %s",
- GST_V4L2ELEMENT(v4l2src)->device, g_strerror (errno)));
+ GST_ELEMENT_ERROR (v4l2src, RESOURCE, SYNC, (NULL),
+ ("could not sync on a buffer on device %s: %s",
+ GST_V4L2ELEMENT (v4l2src)->device, g_strerror (errno)));
return -1;
}
GST_DEBUG_OBJECT (v4l2src, "grab got interrupted");
@@ -162,21 +166,22 @@ gst_v4l2src_grab_frame (GstV4l2Src *v4l2src)
******************************************************/
gboolean
-gst_v4l2src_get_capture (GstV4l2Src *v4l2src)
+gst_v4l2src_get_capture (GstV4l2Src * v4l2src)
{
- DEBUG("Getting capture format");
+ DEBUG ("Getting capture format");
- GST_V4L2_CHECK_OPEN(GST_V4L2ELEMENT(v4l2src));
+ GST_V4L2_CHECK_OPEN (GST_V4L2ELEMENT (v4l2src));
- v4l2src->format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_G_FMT, &v4l2src->format) < 0) {
- GST_ELEMENT_ERROR (v4l2src, RESOURCE, SETTINGS, (NULL),
- ("failed to get pixelformat for device %s: %s",
- GST_V4L2ELEMENT(v4l2src)->device, g_strerror (errno)));
- return FALSE;
- }
+ v4l2src->format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ if (ioctl (GST_V4L2ELEMENT (v4l2src)->video_fd, VIDIOC_G_FMT,
+ &v4l2src->format) < 0) {
+ GST_ELEMENT_ERROR (v4l2src, RESOURCE, SETTINGS, (NULL),
+ ("failed to get pixelformat for device %s: %s",
+ GST_V4L2ELEMENT (v4l2src)->device, g_strerror (errno)));
+ return FALSE;
+ }
- return TRUE;
+ return TRUE;
}
@@ -187,33 +192,33 @@ gst_v4l2src_get_capture (GstV4l2Src *v4l2src)
******************************************************/
gboolean
-gst_v4l2src_set_capture (GstV4l2Src *v4l2src,
- struct v4l2_fmtdesc *fmt,
- gint width,
- gint height)
+gst_v4l2src_set_capture (GstV4l2Src * v4l2src,
+ struct v4l2_fmtdesc * fmt, gint width, gint height)
{
- DEBUG("Setting capture format to %dx%d, format %s",
- width, height, fmt->description);
-
- GST_V4L2_CHECK_OPEN(GST_V4L2ELEMENT(v4l2src));
- GST_V4L2_CHECK_NOT_ACTIVE(GST_V4L2ELEMENT(v4l2src));
-
- memset(&v4l2src->format, 0, sizeof(struct v4l2_format));
- v4l2src->format.fmt.pix.width = width;
- v4l2src->format.fmt.pix.height = height;
- v4l2src->format.fmt.pix.pixelformat = fmt->pixelformat;
- v4l2src->format.fmt.pix.field = V4L2_FIELD_INTERLACED;
- v4l2src->format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-
- if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_S_FMT, &v4l2src->format) < 0) {
- GST_ELEMENT_ERROR (v4l2src, RESOURCE, SETTINGS, (NULL),
- ("failed to set pixelformat to %s @ %dx%d for device %s: %s",
- fmt->description, width, height, GST_V4L2ELEMENT(v4l2src)->device, g_strerror (errno)));
- return FALSE;
- }
-
- /* update internal info */
- return gst_v4l2src_get_capture(v4l2src);
+ DEBUG ("Setting capture format to %dx%d, format %s",
+ width, height, fmt->description);
+
+ GST_V4L2_CHECK_OPEN (GST_V4L2ELEMENT (v4l2src));
+ GST_V4L2_CHECK_NOT_ACTIVE (GST_V4L2ELEMENT (v4l2src));
+
+ memset (&v4l2src->format, 0, sizeof (struct v4l2_format));
+ v4l2src->format.fmt.pix.width = width;
+ v4l2src->format.fmt.pix.height = height;
+ v4l2src->format.fmt.pix.pixelformat = fmt->pixelformat;
+ v4l2src->format.fmt.pix.field = V4L2_FIELD_INTERLACED;
+ v4l2src->format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+
+ if (ioctl (GST_V4L2ELEMENT (v4l2src)->video_fd, VIDIOC_S_FMT,
+ &v4l2src->format) < 0) {
+ GST_ELEMENT_ERROR (v4l2src, RESOURCE, SETTINGS, (NULL),
+ ("failed to set pixelformat to %s @ %dx%d for device %s: %s",
+ fmt->description, width, height, GST_V4L2ELEMENT (v4l2src)->device,
+ g_strerror (errno)));
+ return FALSE;
+ }
+
+ /* update internal info */
+ return gst_v4l2src_get_capture (v4l2src);
}
@@ -224,15 +229,15 @@ gst_v4l2src_set_capture (GstV4l2Src *v4l2src,
******************************************************/
gboolean
-gst_v4l2src_capture_init (GstV4l2Src *v4l2src)
+gst_v4l2src_capture_init (GstV4l2Src * v4l2src)
{
gint n;
guint buffers;
GST_DEBUG_OBJECT (v4l2src, "initting the capture system");
- GST_V4L2_CHECK_OPEN(GST_V4L2ELEMENT(v4l2src));
- GST_V4L2_CHECK_NOT_ACTIVE(GST_V4L2ELEMENT(v4l2src));
+ GST_V4L2_CHECK_OPEN (GST_V4L2ELEMENT (v4l2src));
+ GST_V4L2_CHECK_NOT_ACTIVE (GST_V4L2ELEMENT (v4l2src));
/* request buffer info */
buffers = v4l2src->breq.count;
@@ -244,25 +249,32 @@ gst_v4l2src_capture_init (GstV4l2Src *v4l2src)
}
v4l2src->breq.type = v4l2src->format.type;
v4l2src->breq.memory = V4L2_MEMORY_MMAP;
- if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_REQBUFS, &v4l2src->breq) < 0) {
+ if (ioctl (GST_V4L2ELEMENT (v4l2src)->video_fd, VIDIOC_REQBUFS,
+ &v4l2src->breq) < 0) {
GST_ELEMENT_ERROR (v4l2src, RESOURCE, READ,
- (_("Could not get buffers from device \"%s\"."), GST_V4L2ELEMENT(v4l2src)->device),
- ("error requesting %d buffers: %s", v4l2src->breq.count, g_strerror (errno)));
+ (_("Could not get buffers from device \"%s\"."),
+ GST_V4L2ELEMENT (v4l2src)->device),
+ ("error requesting %d buffers: %s", v4l2src->breq.count,
+ g_strerror (errno)));
return FALSE;
}
if (v4l2src->breq.count < GST_V4L2_MIN_BUFFERS) {
GST_ELEMENT_ERROR (v4l2src, RESOURCE, READ,
- (_("Could not get enough buffers from device \"%s\"."), GST_V4L2ELEMENT(v4l2src)->device),
- ("we received %d, we want at least %d", v4l2src->breq.count, GST_V4L2_MIN_BUFFERS));
+ (_("Could not get enough buffers from device \"%s\"."),
+ GST_V4L2ELEMENT (v4l2src)->device),
+ ("we received %d, we want at least %d", v4l2src->breq.count,
+ GST_V4L2_MIN_BUFFERS));
v4l2src->breq.count = buffers;
return FALSE;
}
if (v4l2src->breq.count != buffers)
g_object_notify (G_OBJECT (v4l2src), "num_buffers");
- GST_INFO_OBJECT (v4l2src, "Got %d buffers ("GST_FOURCC_FORMAT") of size %d KB\n",
- v4l2src->breq.count, GST_FOURCC_ARGS (v4l2src->format.fmt.pix.pixelformat),
+ GST_INFO_OBJECT (v4l2src,
+ "Got %d buffers (" GST_FOURCC_FORMAT ") of size %d KB\n",
+ v4l2src->breq.count,
+ GST_FOURCC_ARGS (v4l2src->format.fmt.pix.pixelformat),
v4l2src->format.fmt.pix.sizeimage / 1024);
/* Map the buffers */
@@ -279,29 +291,32 @@ gst_v4l2src_capture_init (GstV4l2Src *v4l2src)
buffer->pool = v4l2src->pool;
buffer->buffer.index = n;
buffer->buffer.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_QUERYBUF, &buffer->buffer) < 0) {
- GST_ELEMENT_ERROR (v4l2src, RESOURCE, READ, (NULL),
- ("Could not get buffer properties of buffer %d: %s", n, g_strerror (errno)));
- gst_v4l2src_capture_deinit(v4l2src);
+ if (ioctl (GST_V4L2ELEMENT (v4l2src)->video_fd, VIDIOC_QUERYBUF,
+ &buffer->buffer) < 0) {
+ GST_ELEMENT_ERROR (v4l2src, RESOURCE, READ, (NULL),
+ ("Could not get buffer properties of buffer %d: %s", n,
+ g_strerror (errno)));
+ gst_v4l2src_capture_deinit (v4l2src);
return FALSE;
}
- buffer->start = mmap (0, buffer->buffer.length, PROT_READ|PROT_WRITE, MAP_SHARED,
- GST_V4L2ELEMENT(v4l2src)->video_fd, buffer->buffer.m.offset);
+ buffer->start =
+ mmap (0, buffer->buffer.length, PROT_READ | PROT_WRITE, MAP_SHARED,
+ GST_V4L2ELEMENT (v4l2src)->video_fd, buffer->buffer.m.offset);
if (buffer->start == MAP_FAILED) {
- GST_ELEMENT_ERROR (v4l2src, RESOURCE, READ, (NULL),
- ("Could not mmap video buffer %d: %s", n, g_strerror (errno)));
+ GST_ELEMENT_ERROR (v4l2src, RESOURCE, READ, (NULL),
+ ("Could not mmap video buffer %d: %s", n, g_strerror (errno)));
buffer->start = 0;
gst_v4l2src_capture_deinit (v4l2src);
return FALSE;
}
buffer->length = buffer->buffer.length;
- if (!gst_v4l2src_queue_frame(v4l2src, n)) {
+ if (!gst_v4l2src_queue_frame (v4l2src, n)) {
gst_v4l2src_capture_deinit (v4l2src);
return FALSE;
}
}
- GST_V4L2_SET_ACTIVE(GST_V4L2ELEMENT (v4l2src));
+ GST_V4L2_SET_ACTIVE (GST_V4L2ELEMENT (v4l2src));
return TRUE;
}
@@ -313,24 +328,24 @@ gst_v4l2src_capture_init (GstV4l2Src *v4l2src)
******************************************************/
gboolean
-gst_v4l2src_capture_start (GstV4l2Src *v4l2src)
+gst_v4l2src_capture_start (GstV4l2Src * v4l2src)
{
gint type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
GST_DEBUG_OBJECT (v4l2src, "starting the capturing");
-
- GST_V4L2_CHECK_OPEN(GST_V4L2ELEMENT(v4l2src));
- if (!GST_V4L2_IS_ACTIVE (GST_V4L2ELEMENT(v4l2src))) {
+
+ GST_V4L2_CHECK_OPEN (GST_V4L2ELEMENT (v4l2src));
+ if (!GST_V4L2_IS_ACTIVE (GST_V4L2ELEMENT (v4l2src))) {
gst_pad_renegotiate (v4l2src->srcpad);
}
- GST_V4L2_CHECK_ACTIVE(GST_V4L2ELEMENT(v4l2src));
+ GST_V4L2_CHECK_ACTIVE (GST_V4L2ELEMENT (v4l2src));
v4l2src->quit = FALSE;
- if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_STREAMON, &type) < 0) {
+ if (ioctl (GST_V4L2ELEMENT (v4l2src)->video_fd, VIDIOC_STREAMON, &type) < 0) {
GST_ELEMENT_ERROR (v4l2src, RESOURCE, OPEN_READ, (NULL),
- ("Error starting streaming capture from device %s: %s",
- GST_V4L2ELEMENT(v4l2src)->device, g_strerror(errno)));
+ ("Error starting streaming capture from device %s: %s",
+ GST_V4L2ELEMENT (v4l2src)->device, g_strerror (errno)));
return FALSE;
}
@@ -345,31 +360,31 @@ gst_v4l2src_capture_start (GstV4l2Src *v4l2src)
******************************************************/
gboolean
-gst_v4l2src_capture_stop (GstV4l2Src *v4l2src)
+gst_v4l2src_capture_stop (GstV4l2Src * v4l2src)
{
gint type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
GST_DEBUG_OBJECT (v4l2src, "stopping capturing");
- GST_V4L2_CHECK_OPEN(GST_V4L2ELEMENT(v4l2src));
- GST_V4L2_CHECK_ACTIVE(GST_V4L2ELEMENT(v4l2src));
+ GST_V4L2_CHECK_OPEN (GST_V4L2ELEMENT (v4l2src));
+ GST_V4L2_CHECK_ACTIVE (GST_V4L2ELEMENT (v4l2src));
/* we actually need to sync on all queued buffers but not
* on the non-queued ones */
- if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_STREAMOFF, &type) < 0) {
+ if (ioctl (GST_V4L2ELEMENT (v4l2src)->video_fd, VIDIOC_STREAMOFF, &type) < 0) {
GST_ELEMENT_ERROR (v4l2src, RESOURCE, CLOSE, (NULL),
- ("Error stopping streaming capture from device %s: %s",
- GST_V4L2ELEMENT(v4l2src)->device, g_strerror (errno)));
+ ("Error stopping streaming capture from device %s: %s",
+ GST_V4L2ELEMENT (v4l2src)->device, g_strerror (errno)));
return FALSE;
}
/* make an optional pending wait stop */
v4l2src->quit = TRUE;
-
+
return TRUE;
}
static void
-gst_v4l2src_buffer_pool_free (GstV4l2BufferPool *pool, gboolean do_close)
+gst_v4l2src_buffer_pool_free (GstV4l2BufferPool * pool, gboolean do_close)
{
guint i;
@@ -385,16 +400,16 @@ gst_v4l2src_buffer_pool_free (GstV4l2BufferPool *pool, gboolean do_close)
}
void
-gst_v4l2src_free_buffer (GstBuffer *buffer)
+gst_v4l2src_free_buffer (GstBuffer * buffer)
{
GstV4l2Buffer *buf = (GstV4l2Buffer *) GST_BUFFER_PRIVATE (buffer);
-
+
GST_LOG ("freeing buffer %p (nr. %d)", buffer, buf->buffer.index);
-
+
if (!gst_atomic_int_dec_and_test (&buf->refcount)) {
/* we're still in use, add to queue again
note: this might fail because the device is already stopped (race) */
- if (ioctl(buf->pool->video_fd, VIDIOC_QBUF, &buf->buffer) < 0)
+ if (ioctl (buf->pool->video_fd, VIDIOC_QBUF, &buf->buffer) < 0)
GST_INFO ("readding to queue failed, assuming video device is stopped");
}
if (gst_atomic_int_dec_and_test (&buf->pool->refcount)) {
@@ -410,14 +425,14 @@ gst_v4l2src_free_buffer (GstBuffer *buffer)
******************************************************/
gboolean
-gst_v4l2src_capture_deinit (GstV4l2Src *v4l2src)
+gst_v4l2src_capture_deinit (GstV4l2Src * v4l2src)
{
gint i, dequeue = 0;
-
+
GST_DEBUG_OBJECT (v4l2src, "deinitting capture system");
-
- GST_V4L2_CHECK_OPEN(GST_V4L2ELEMENT(v4l2src));
- GST_V4L2_CHECK_ACTIVE(GST_V4L2ELEMENT(v4l2src));
+
+ GST_V4L2_CHECK_OPEN (GST_V4L2ELEMENT (v4l2src));
+ GST_V4L2_CHECK_ACTIVE (GST_V4L2ELEMENT (v4l2src));
/* free the buffers */
for (i = 0; i < v4l2src->breq.count; i++) {
@@ -426,16 +441,18 @@ gst_v4l2src_capture_deinit (GstV4l2Src *v4l2src)
}
for (i = 0; i < dequeue; i++) {
struct v4l2_buffer buffer;
- buffer.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_DQBUF, &buffer) < 0)
- GST_WARNING_OBJECT (v4l2src, "Could not dequeue buffer on uninitialization");
+
+ buffer.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ if (ioctl (GST_V4L2ELEMENT (v4l2src)->video_fd, VIDIOC_DQBUF, &buffer) < 0)
+ GST_WARNING_OBJECT (v4l2src,
+ "Could not dequeue buffer on uninitialization");
}
if (gst_atomic_int_dec_and_test (&v4l2src->pool->refcount)) {
/* we're last thing that used all this */
gst_v4l2src_buffer_pool_free (v4l2src->pool, FALSE);
}
v4l2src->pool = NULL;
-
+
GST_V4L2_SET_INACTIVE (GST_V4L2ELEMENT (v4l2src));
return TRUE;
}
@@ -446,46 +463,45 @@ gst_v4l2src_capture_deinit (GstV4l2Src *v4l2src)
*/
gboolean
-gst_v4l2src_get_size_limits (GstV4l2Src *v4l2src,
- struct v4l2_fmtdesc *format,
- gint *min_w, gint *max_w,
- gint *min_h, gint *max_h)
+gst_v4l2src_get_size_limits (GstV4l2Src * v4l2src,
+ struct v4l2_fmtdesc * format,
+ gint * min_w, gint * max_w, gint * min_h, gint * max_h)
{
- struct v4l2_format fmt;
-
- GST_LOG_OBJECT (v4l2src, "getting size limits with format " GST_FOURCC_FORMAT,
- GST_FOURCC_ARGS (format->pixelformat));
-
- /* get size delimiters */
- memset(&fmt, 0, sizeof(fmt));
- fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- fmt.fmt.pix.width = 0;
- fmt.fmt.pix.height = 0;
- fmt.fmt.pix.pixelformat = format->pixelformat;
- fmt.fmt.pix.field = V4L2_FIELD_INTERLACED;
- if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd,
- VIDIOC_TRY_FMT, &fmt) < 0) {
- return FALSE;
- }
-
- if (min_w)
- *min_w = fmt.fmt.pix.width;
- if (min_h)
- *min_h = fmt.fmt.pix.height;
- GST_LOG_OBJECT (v4l2src, "got min size %dx%d", fmt.fmt.pix.width, fmt.fmt.pix.height);
-
- fmt.fmt.pix.width = G_MAXINT;
- fmt.fmt.pix.height = 576;
- if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd,
- VIDIOC_TRY_FMT, &fmt) < 0) {
- return FALSE;
- }
-
- if (max_w)
- *max_w = fmt.fmt.pix.width;
- if (max_h)
- *max_h = fmt.fmt.pix.height;
- GST_LOG_OBJECT (v4l2src, "got max size %dx%d", fmt.fmt.pix.width, fmt.fmt.pix.height);
-
- return TRUE;
+ struct v4l2_format fmt;
+
+ GST_LOG_OBJECT (v4l2src, "getting size limits with format " GST_FOURCC_FORMAT,
+ GST_FOURCC_ARGS (format->pixelformat));
+
+ /* get size delimiters */
+ memset (&fmt, 0, sizeof (fmt));
+ fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ fmt.fmt.pix.width = 0;
+ fmt.fmt.pix.height = 0;
+ fmt.fmt.pix.pixelformat = format->pixelformat;
+ fmt.fmt.pix.field = V4L2_FIELD_INTERLACED;
+ if (ioctl (GST_V4L2ELEMENT (v4l2src)->video_fd, VIDIOC_TRY_FMT, &fmt) < 0) {
+ return FALSE;
+ }
+
+ if (min_w)
+ *min_w = fmt.fmt.pix.width;
+ if (min_h)
+ *min_h = fmt.fmt.pix.height;
+ GST_LOG_OBJECT (v4l2src, "got min size %dx%d", fmt.fmt.pix.width,
+ fmt.fmt.pix.height);
+
+ fmt.fmt.pix.width = G_MAXINT;
+ fmt.fmt.pix.height = 576;
+ if (ioctl (GST_V4L2ELEMENT (v4l2src)->video_fd, VIDIOC_TRY_FMT, &fmt) < 0) {
+ return FALSE;
+ }
+
+ if (max_w)
+ *max_w = fmt.fmt.pix.width;
+ if (max_h)
+ *max_h = fmt.fmt.pix.height;
+ GST_LOG_OBJECT (v4l2src, "got max size %dx%d", fmt.fmt.pix.width,
+ fmt.fmt.pix.height);
+
+ return TRUE;
}
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-07 16:54:42 +0000