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Diffstat (limited to 'multimedia/gstreamer-plugins/files/patch-sys_v4l_v4lsrc_calls.c')
-rw-r--r--multimedia/gstreamer-plugins/files/patch-sys_v4l_v4lsrc_calls.c261
1 files changed, 261 insertions, 0 deletions
diff --git a/multimedia/gstreamer-plugins/files/patch-sys_v4l_v4lsrc_calls.c b/multimedia/gstreamer-plugins/files/patch-sys_v4l_v4lsrc_calls.c
new file mode 100644
index 000000000000..24088dc9fee4
--- /dev/null
+++ b/multimedia/gstreamer-plugins/files/patch-sys_v4l_v4lsrc_calls.c
@@ -0,0 +1,261 @@
+--- sys/v4l/v4lsrc_calls.c.orig 2008-03-03 17:29:52.000000000 -0500
++++ sys/v4l/v4lsrc_calls.c 2008-03-20 23:50:39.000000000 -0400
+@@ -26,12 +26,14 @@
+
+ #include <stdlib.h>
+ #include <sys/types.h>
++#include <sys/uio.h>
+ #include <sys/stat.h>
+ #include <fcntl.h>
+ #include <sys/ioctl.h>
+ #include <sys/mman.h>
+ #include <string.h>
+ #include <errno.h>
++#include <unistd.h>
+ #include "v4lsrc_calls.h"
+ #include <sys/time.h>
+
+@@ -87,6 +89,51 @@
+ return FALSE;
+ }
+
++ if (GST_V4LELEMENT (v4lsrc)->use_read) {
++ struct video_picture vp;
++ struct video_window vw;
++
++
++ if (ioctl (GST_V4LELEMENT (v4lsrc)->video_fd, VIDIOCGPICT, &vp) == -1) {
++ GST_ELEMENT_ERROR (v4lsrc, RESOURCE, WRITE, (NULL),
++ ("Error getting current picture info for frame (%d): %s", num, g_strerror (errno)));
++ return FALSE;
++ }
++
++ vp.palette = v4lsrc->mmap.format;
++ if (ioctl (GST_V4LELEMENT (v4lsrc)->video_fd, VIDIOCSPICT, &vp) == -1) {
++ GST_ELEMENT_ERROR (v4lsrc, RESOURCE, WRITE, (NULL),
++ ("Error setting picture info for frame (%d): %s", num, g_strerror (errno)));
++ return FALSE;
++ }
++
++ if (ioctl (GST_V4LELEMENT (v4lsrc)->video_fd, VIDIOCGWIN, &vw) == -1) {
++ GST_ELEMENT_ERROR (v4lsrc, RESOURCE, WRITE, (NULL),
++ ("Error getting current window properties for frame (%d): %s", num, g_strerror (errno)));
++ return FALSE;
++ }
++
++ vw.width = v4lsrc->mmap.width;
++ vw.height = v4lsrc->mmap.height;
++ if (ioctl (GST_V4LELEMENT (v4lsrc)->video_fd, VIDIOCSWIN, &vw) == -1) {
++ vw.flags &= (0x3F00 - 1);
++ vw.flags |= 15 << 16;
++ if (ioctl (GST_V4LELEMENT (v4lsrc)->video_fd, VIDIOCSWIN, &vw) == -1) {
++ GST_ELEMENT_ERROR (v4lsrc, RESOURCE, WRITE, (NULL),
++ ("Error setting window properties for frame (%d): %s", num, g_strerror (errno)));
++ return FALSE;
++ }
++ }
++
++
++ if (read(GST_V4LELEMENT (v4lsrc)->video_fd, GST_V4LELEMENT (v4lsrc)->buffer + (1024 * 768 * 3 * num), v4lsrc->mmap.width * v4lsrc->mmap.height * 3/2) < 0) {
++ GST_ELEMENT_ERROR (v4lsrc, RESOURCE, WRITE, (NULL),
++ ("Error queueing a buffer (%d): %s", num, g_strerror (errno)));
++ return FALSE;
++ }
++ goto done;
++ }
++
+ /* instruct the driver to prepare capture using buffer frame num */
+ v4lsrc->mmap.frame = num;
+ if (ioctl (GST_V4LELEMENT (v4lsrc)->video_fd,
+@@ -95,6 +142,7 @@
+ ("Error queueing a buffer (%d): %s", num, g_strerror (errno)));
+ return FALSE;
+ }
++done:
+
+ v4lsrc->frame_queue_state[num] = QUEUE_STATE_QUEUED;
+ v4lsrc->num_queued++;
+@@ -117,6 +165,10 @@
+ return FALSE;
+ }
+
++ if (GST_V4LELEMENT (v4lsrc)->use_read) {
++ goto done;
++ }
++
+ while (ioctl (GST_V4LELEMENT (v4lsrc)->video_fd, VIDIOCSYNC, &num) < 0) {
+ /* if the sync() got interrupted, we can retry */
+ if (errno != EINTR) {
+@@ -126,6 +178,7 @@
+ }
+ GST_DEBUG_OBJECT (v4lsrc, "Sync got interrupted");
+ }
++done:
+ GST_LOG_OBJECT (v4lsrc, "VIOIOCSYNC on frame %d done", num);
+
+ v4lsrc->frame_queue_state[num] = QUEUE_STATE_SYNCED;
+@@ -168,13 +221,28 @@
+ GST_V4L_CHECK_OPEN (GST_V4LELEMENT (v4lsrc));
+ GST_V4L_CHECK_NOT_ACTIVE (GST_V4LELEMENT (v4lsrc));
+
++ GST_V4LELEMENT (v4lsrc)->use_read = FALSE;
++
+ /* request the mmap buffer info:
+ * total size of mmap buffer, number of frames, offsets of frames */
+ if (ioctl (GST_V4LELEMENT (v4lsrc)->video_fd, VIDIOCGMBUF,
+ &(v4lsrc->mbuf)) < 0) {
+- GST_ELEMENT_ERROR (v4lsrc, RESOURCE, READ, (NULL),
+- ("Error getting buffer information: %s", g_strerror (errno)));
+- return FALSE;
++ int i;
++
++ GST_V4LELEMENT (v4lsrc)->buffer = (guint8 *) g_malloc0 (sizeof (guint8) * 1024 * 768 * 3 * MIN_BUFFERS_QUEUED);
++ GST_V4LELEMENT (v4lsrc)->use_read = TRUE;
++
++ v4lsrc->frame_queue_state = (gint8 *) g_malloc (sizeof (gint8) * MIN_BUFFERS_QUEUED);
++
++ v4lsrc->mbuf.frames = MIN_BUFFERS_QUEUED;
++ for (i = 0; i < MIN_BUFFERS_QUEUED; i++) {
++ v4lsrc->mbuf.offsets[i] = (1024 * 768 * 3 * i);
++ }
++
++ /* lock for the frame_state */
++ v4lsrc->mutex_queue_state = g_mutex_new ();
++ v4lsrc->cond_queue_state = g_cond_new ();
++ goto done;
+ }
+
+ if (v4lsrc->mbuf.frames < MIN_BUFFERS_QUEUED) {
+@@ -205,6 +273,7 @@
+ GST_V4LELEMENT (v4lsrc)->buffer = NULL;
+ return FALSE;
+ }
++done:
+
+ return TRUE;
+ }
+@@ -413,10 +482,14 @@
+ v4lsrc->frame_queue_state = NULL;
+
+ /* unmap the buffer */
+- if (munmap (GST_V4LELEMENT (v4lsrc)->buffer, v4lsrc->mbuf.size) == -1) {
+- GST_ELEMENT_ERROR (v4lsrc, RESOURCE, CLOSE, (NULL),
+- ("error munmap'ing capture buffer: %s", g_strerror (errno)));
+- return FALSE;
++ if (GST_V4LELEMENT (v4lsrc)->use_read) {
++ g_free (GST_V4LELEMENT (v4lsrc)->buffer);
++ } else {
++ if (munmap (GST_V4LELEMENT (v4lsrc)->buffer, v4lsrc->mbuf.size) == -1) {
++ GST_ELEMENT_ERROR (v4lsrc, RESOURCE, CLOSE, (NULL),
++ ("error munmap'ing capture buffer: %s", g_strerror (errno)));
++ return FALSE;
++ }
+ }
+ GST_V4LELEMENT (v4lsrc)->buffer = NULL;
+
+@@ -446,6 +519,7 @@
+ /* so, we need a buffer and some more stuff */
+ int frame = 0;
+ guint8 *buffer;
++ gboolean use_read = FALSE;
+ struct video_mbuf vmbuf;
+ struct video_mmap vmmap;
+
+@@ -456,24 +530,72 @@
+
+ /* let's start by requesting a buffer and mmap()'ing it */
+ if (ioctl (GST_V4LELEMENT (v4lsrc)->video_fd, VIDIOCGMBUF, &vmbuf) < 0) {
+- GST_ELEMENT_ERROR (v4lsrc, RESOURCE, READ, (NULL),
+- ("Error getting buffer information: %s", g_strerror (errno)));
+- return FALSE;
+- }
+- /* Map the buffers */
+- buffer = mmap (NULL, vmbuf.size, PROT_READ | PROT_WRITE,
+- MAP_SHARED, GST_V4LELEMENT (v4lsrc)->video_fd, 0);
+- if (buffer == MAP_FAILED) {
+- GST_ELEMENT_ERROR (v4lsrc, RESOURCE, OPEN_READ_WRITE, (NULL),
+- ("Error mapping our try-out buffer: %s", g_strerror (errno)));
+- return FALSE;
+- }
++ buffer = (gint8 *) g_malloc0 (sizeof (gint8) * 1024 * 768 * 3);
++ use_read = TRUE;
++ } else {
++ /* Map the buffers */
++ buffer = mmap (0, vmbuf.size, PROT_READ | PROT_WRITE,
++ MAP_SHARED, GST_V4LELEMENT (v4lsrc)->video_fd, 0);
++ if (buffer == MAP_FAILED) {
++ GST_ELEMENT_ERROR (v4lsrc, RESOURCE, OPEN_READ_WRITE, (NULL),
++ ("Error mapping our try-out buffer: %s", g_strerror (errno)));
++ return FALSE;
++ }
++ }
+
+ /* now that we have a buffer, let's try out our format */
+ vmmap.width = width;
+ vmmap.height = height;
+ vmmap.format = palette;
+ vmmap.frame = frame;
++ if (use_read) {
++ struct video_picture vp;
++ struct video_window vw;
++
++ if (ioctl (GST_V4LELEMENT (v4lsrc)->video_fd, VIDIOCGWIN, &vw) == -1) {
++ GST_ERROR_OBJECT (v4lsrc,
++ "Error getting current window properties: %s", g_strerror (errno));
++ g_free (buffer);
++ return FALSE;
++ }
++
++ vw.width = width;
++ vw.height = height;
++ if (ioctl (GST_V4LELEMENT (v4lsrc)->video_fd, VIDIOCSWIN, &vw) == -1) {
++ vw.flags &= (0x3F00 - 1);
++ vw.flags |= 15 << 16;
++ if (ioctl (GST_V4LELEMENT (v4lsrc)->video_fd, VIDIOCSWIN, &vw) == -1) {
++ GST_ERROR_OBJECT (v4lsrc,
++ "Error setting window properties: %s", g_strerror (errno));
++ g_free (buffer);
++ return FALSE;
++ }
++ }
++
++ if (ioctl (GST_V4LELEMENT (v4lsrc)->video_fd, VIDIOCGPICT, &vp) == -1) {
++ GST_ERROR_OBJECT (v4lsrc,
++ "Error getting current picture info: %s", g_strerror (errno));
++ g_free (buffer);
++ return FALSE;
++ }
++
++ vp.palette = palette;
++ if (ioctl (GST_V4LELEMENT (v4lsrc)->video_fd, VIDIOCSPICT, &vp) == -1) {
++ GST_ERROR_OBJECT (v4lsrc,
++ "Error setting picture info: %s", g_strerror (errno));
++ g_free (buffer);
++ return FALSE;
++ }
++
++
++ if (read (GST_V4LELEMENT (v4lsrc)->video_fd, buffer, width * height * 3/2) < 0) {
++ GST_ERROR_OBJECT (v4lsrc,
++ "Error reading into our try-out buffer: %s", g_strerror (errno));
++ g_free (buffer);
++ return FALSE;
++ }
++ goto done;
++ }
+ if (ioctl (GST_V4LELEMENT (v4lsrc)->video_fd, VIDIOCMCAPTURE, &vmmap) < 0) {
+ if (errno != EINVAL) /* our format failed! */
+ GST_ERROR_OBJECT (v4lsrc,
+@@ -488,7 +610,11 @@
+ return FALSE;
+ }
+
+- munmap (buffer, vmbuf.size);
++done:
++ if (use_read)
++ g_free (buffer);
++ else
++ munmap (buffer, vmbuf.size);
+
+ /* if we got here, it worked! woohoo, the format is supported! */
+ return TRUE;
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