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-rw-r--r--sys/v4l2/gstv4l2src.c689
-rw-r--r--sys/v4l2/gstv4l2src.h5
-rw-r--r--sys/v4l2/v4l2src_calls.c45
-rw-r--r--sys/v4l2/v4l2src_calls.h5
4 files changed, 368 insertions, 376 deletions
diff --git a/sys/v4l2/gstv4l2src.c b/sys/v4l2/gstv4l2src.c
index c3b52dcf..92ca2092 100644
--- a/sys/v4l2/gstv4l2src.c
+++ b/sys/v4l2/gstv4l2src.c
@@ -44,10 +44,6 @@ enum {
/* arguments */
enum {
ARG_0,
- ARG_WIDTH,
- ARG_HEIGHT,
- ARG_PALETTE,
- ARG_PALETTE_NAMES,
ARG_NUMBUFS,
ARG_BUFSIZE,
ARG_USE_FIXED_FPS
@@ -148,20 +144,6 @@ gst_v4l2src_class_init (GstV4l2SrcClass *klass)
parent_class = g_type_class_ref(GST_TYPE_V4L2ELEMENT);
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_WIDTH,
- g_param_spec_int("width","width","width",
- G_MININT,G_MAXINT,0,G_PARAM_READWRITE));
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_HEIGHT,
- g_param_spec_int("height","height","height",
- G_MININT,G_MAXINT,0,G_PARAM_READWRITE));
-
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_PALETTE,
- g_param_spec_int("palette","palette","palette",
- G_MININT,G_MAXINT,0,G_PARAM_READWRITE));
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_PALETTE_NAMES,
- g_param_spec_pointer("palette_name","palette_name","palette_name",
- G_PARAM_READABLE));
-
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_NUMBUFS,
g_param_spec_int("num_buffers","num_buffers","num_buffers",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE));
@@ -227,9 +209,6 @@ gst_v4l2src_init (GstV4l2Src *v4l2src)
gst_v4l2src_buffer_free,
v4l2src);
- v4l2src->palette = 0; /* means 'any' - user can specify a specific palette */
- v4l2src->width = 160;
- v4l2src->height = 120;
v4l2src->breq.count = 0;
v4l2src->formats = NULL;
@@ -341,302 +320,296 @@ gst_v4l2src_srcconvert (GstPad *pad,
static GstCaps *
-gst_v4l2src_v4l2fourcc_to_caps (guint32 fourcc,
- gint width,
- gint height,
- gboolean compressed)
+gst_v4l2src_v4l2fourcc_to_caps (guint32 fourcc,
+ GstPropsEntry *width,
+ GstPropsEntry *height,
+ gboolean compressed)
{
- GstCaps *capslist = NULL, *caps;
+ GstCaps *caps = NULL;
switch (fourcc) {
- case V4L2_PIX_FMT_MJPEG: /* v4l2_fourcc('M','J','P','G') */
- caps = gst_caps_new("v4l2src_caps",
- "video/jpeg",
- gst_props_new(
- "width", GST_PROPS_INT(width),
- "height", GST_PROPS_INT(height),
- NULL));
- capslist = gst_caps_append(capslist, caps);
+ case V4L2_PIX_FMT_MJPEG: /* Motion-JPEG */
+ case V4L2_PIX_FMT_JPEG: /* JFIF JPEG */
+ caps = GST_CAPS_NEW("v4l2src_caps",
+ "video/jpeg",
+ NULL);
break;
+ case V4L2_PIX_FMT_RGB332:
+ case V4L2_PIX_FMT_RGB555:
+ case V4L2_PIX_FMT_RGB555X:
+ case V4L2_PIX_FMT_RGB565:
+ case V4L2_PIX_FMT_RGB565X:
+ case V4L2_PIX_FMT_RGB24:
+ case V4L2_PIX_FMT_BGR24:
+ case V4L2_PIX_FMT_RGB32:
+ case V4L2_PIX_FMT_BGR32: {
+ guint depth=0, bpp=0;
+ gint endianness = 0;
+ guint32 r_mask = 0, b_mask = 0, g_mask = 0;
+ guint32 fcc = GST_MAKE_FOURCC('R','G','B',' ');
+
+ switch (fourcc) {
case V4L2_PIX_FMT_RGB332:
+ bpp = depth = 8;
+ endianness = G_BYTE_ORDER; /* 'like, whatever' */
+ r_mask = 0xe0; g_mask = 0x1c; b_mask = 0x03;
+ break;
case V4L2_PIX_FMT_RGB555:
case V4L2_PIX_FMT_RGB555X:
+ bpp = 16; depth = 15;
+ endianness = (fourcc == V4L2_PIX_FMT_RGB332) ?
+ G_LITTLE_ENDIAN : G_BIG_ENDIAN;
+ r_mask = 0x7c00; g_mask = 0x03e0; b_mask = 0x001f;
+ break;
case V4L2_PIX_FMT_RGB565:
case V4L2_PIX_FMT_RGB565X:
+ bpp = depth = 16;
+ endianness = (fourcc == V4L2_PIX_FMT_RGB565) ?
+ G_LITTLE_ENDIAN : G_BIG_ENDIAN;
+ r_mask = 0xf800; g_mask = 0x07e0; b_mask = 0x001f;
+ break;
case V4L2_PIX_FMT_RGB24:
case V4L2_PIX_FMT_BGR24:
+ bpp = depth = 24;
+ endianness = (fourcc == V4L2_PIX_FMT_BGR24) ?
+ G_LITTLE_ENDIAN : G_BIG_ENDIAN;
+ r_mask = 0xff0000; g_mask = 0x00ff00; b_mask = 0x0000ff;
+ break;
case V4L2_PIX_FMT_RGB32:
- case V4L2_PIX_FMT_BGR32: {
- guint depth=0, bpp=0;
- gint endianness=0;
- gulong r_mask=0, b_mask=0, g_mask=0;
- switch (fourcc) {
- case V4L2_PIX_FMT_RGB332:
- bpp = depth = 8;
- endianness = G_BYTE_ORDER; /* 'like, whatever' */
- r_mask = 0xe0; g_mask = 0x1c; b_mask = 0x03;
- break;
- case V4L2_PIX_FMT_RGB555:
- bpp = 16; depth = 15;
- endianness = G_LITTLE_ENDIAN;
- r_mask = 0x7c00; g_mask = 0x03e0; b_mask = 0x001f;
- break;
- case V4L2_PIX_FMT_RGB555X:
- bpp = 16; depth = 15;
- endianness = G_BIG_ENDIAN;
- r_mask = 0x7c00; g_mask = 0x03e0; b_mask = 0x001f;
- break;
- case V4L2_PIX_FMT_RGB565:
- bpp = depth = 16;
- endianness = G_LITTLE_ENDIAN;
- r_mask = 0xf800; g_mask = 0x07e0; b_mask = 0x001f;
- break;
- case V4L2_PIX_FMT_RGB565X:
- bpp = depth = 16;
- endianness = G_BIG_ENDIAN;
- r_mask = 0xf800; g_mask = 0x07e0; b_mask = 0x001f;
- break;
- case V4L2_PIX_FMT_RGB24:
- bpp = depth = 24;
- endianness = G_BIG_ENDIAN;
- r_mask = 0xff0000; g_mask = 0x00ff00; b_mask = 0x0000ff;
- break;
- case V4L2_PIX_FMT_BGR24:
- bpp = depth = 24;
- endianness = G_LITTLE_ENDIAN;
- r_mask = 0xff0000; g_mask = 0x00ff00; b_mask = 0x0000ff;
- break;
- case V4L2_PIX_FMT_RGB32:
- bpp = depth = 32;
- endianness = G_BIG_ENDIAN;
- r_mask = 0x00ff0000; g_mask = 0x0000ff00; b_mask = 0x000000ff;
- break;
- case V4L2_PIX_FMT_BGR32:
- endianness = G_LITTLE_ENDIAN;
- bpp = depth = 32;
- r_mask = 0x00ff0000; g_mask = 0x0000ff00; b_mask = 0x000000ff;
- break;
- }
- caps = gst_caps_new("v4l2src_caps",
- "video/raw",
- gst_props_new(
- "format", GST_PROPS_FOURCC(GST_MAKE_FOURCC('R','G','B',' ')),
- "width", GST_PROPS_INT(width),
- "height", GST_PROPS_INT(height),
- "bpp", GST_PROPS_INT(bpp),
- "depth", GST_PROPS_INT(depth),
- "red_mask", GST_PROPS_INT(r_mask),
- "green_mask", GST_PROPS_INT(g_mask),
- "blue_mask", GST_PROPS_INT(b_mask),
- "endianness", GST_PROPS_INT(endianness),
- NULL));
- capslist = gst_caps_append(capslist, caps);
- break; }
- case V4L2_PIX_FMT_YUV420: /* I420/IYUV */
- caps = gst_caps_new("v4l2src_caps",
- "video/raw",
- gst_props_new(
- "format", GST_PROPS_FOURCC(GST_MAKE_FOURCC('I','4','2','0')),
- "width", GST_PROPS_INT(width),
- "height", GST_PROPS_INT(height),
- NULL));
- capslist = gst_caps_append(capslist, caps);
- caps = gst_caps_new("v4l2src_caps",
- "video/raw",
- gst_props_new(
- "format", GST_PROPS_FOURCC(GST_MAKE_FOURCC('I','Y','U','V')),
- "width", GST_PROPS_INT(width),
- "height", GST_PROPS_INT(height),
- NULL));
- capslist = gst_caps_append(capslist, caps);
+ case V4L2_PIX_FMT_BGR32:
+ bpp = depth = 32;
+ endianness = (fourcc == V4L2_PIX_FMT_BGR32) ?
+ G_LITTLE_ENDIAN : G_BIG_ENDIAN;
+ r_mask = 0x00ff0000; g_mask = 0x0000ff00; b_mask = 0x000000ff;
+ break;
+ default:
+ g_assert_not_reached();
+ break;
+ }
+
+ caps = GST_CAPS_NEW("v4l2src_caps",
+ "video/raw",
+ "format", GST_PROPS_FOURCC(fcc),
+ "bpp", GST_PROPS_INT(bpp),
+ "depth", GST_PROPS_INT(depth),
+ "red_mask", GST_PROPS_INT(r_mask),
+ "green_mask", GST_PROPS_INT(g_mask),
+ "blue_mask", GST_PROPS_INT(b_mask),
+ "endianness", GST_PROPS_INT(endianness),
+ NULL);
+ break;
+ }
+ case V4L2_PIX_FMT_YUV420: /* I420/IYUV */
+ case V4L2_PIX_FMT_YUYV:
+ case V4L2_PIX_FMT_YVU420:
+ case V4L2_PIX_FMT_UYVY:
+ case V4L2_PIX_FMT_Y41P: {
+ guint32 fcc = 0;
+
+ switch (fourcc) {
+ case V4L2_PIX_FMT_YUV420:
+ fcc = GST_MAKE_FOURCC('I','4','2','0');
break;
case V4L2_PIX_FMT_YUYV:
- caps = gst_caps_new("v4l2src_caps",
- "video/raw",
- gst_props_new(
- "format", GST_PROPS_FOURCC(GST_MAKE_FOURCC('Y','U','Y','2')),
- "width", GST_PROPS_INT(width),
- "height", GST_PROPS_INT(height),
- NULL));
- capslist = gst_caps_append(capslist, caps);
+ fcc = GST_MAKE_FOURCC('Y','U','Y','2');
+ break;
+ case V4L2_PIX_FMT_YVU420:
+ fcc = GST_MAKE_FOURCC('Y','V','1','2');
+ break;
+ case V4L2_PIX_FMT_UYVY:
+ fcc = GST_MAKE_FOURCC('U','Y','V','Y');
+ break;
+ case V4L2_PIX_FMT_Y41P:
+ fcc = GST_MAKE_FOURCC('Y','4','1','P');
break;
default:
+ g_assert_not_reached();
break;
+ }
+
+ caps = GST_CAPS_NEW("v4l2src_caps",
+ "video/raw",
+ "format", GST_PROPS_FOURCC(fcc),
+ NULL);
+ break;
}
+ default:
+ GST_DEBUG(GST_CAT_PLUGIN_INFO,
+ "Unknown fourcc 0x%08x " GST_FOURCC_FORMAT ", trying default",
+ fourcc, GST_FOURCC_ARGS(fourcc));
+
+ /* add the standard one */
+ if (compressed) {
+ guint32 print_format = GUINT32_FROM_LE(fourcc);
+ gchar *print_format_str = (gchar *) &print_format, *string_format;
+ gint i;
- /* add the standard one */
- if (compressed) {
- guint32 print_format = GUINT32_FROM_LE(fourcc);
- gchar *print_format_str = (gchar *) &print_format, *string_format;
- gint i;
- for (i=0;i<4;i++)
- print_format_str[i] = g_ascii_tolower(print_format_str[i]);
- string_format = g_strdup_printf("video/%4.4s", print_format_str);
- caps = gst_caps_new("v4l2src_caps",
- string_format,
- gst_props_new(
- "width", GST_PROPS_INT(width),
- "height", GST_PROPS_INT(height),
- NULL));
- capslist = gst_caps_append(capslist, caps);
- g_free(string_format);
- } else {
- caps = gst_caps_new("v4l2src_caps",
- "video/raw",
- gst_props_new(
- "format", GST_PROPS_FOURCC(fourcc),
- "width", GST_PROPS_INT(width),
- "height", GST_PROPS_INT(height),
- NULL));
- capslist = gst_caps_append(capslist, caps);
+ for (i=0;i<4;i++) {
+ print_format_str[i] =
+ g_ascii_tolower(print_format_str[i]);
+ }
+ string_format = g_strdup_printf("video/%4.4s",
+ print_format_str);
+ caps = GST_CAPS_NEW("v4l2src_caps",
+ string_format,
+ NULL);
+ g_free(string_format);
+ } else {
+ caps = GST_CAPS_NEW("v4l2src_caps",
+ "video/raw",
+ "format",GST_PROPS_FOURCC(fourcc),
+ NULL);
+ }
+ break;
}
- return capslist;
-}
+ if (!caps->properties)
+ caps->properties = gst_props_empty_new();
+ gst_props_add_entry(caps->properties, width);
+ gst_props_add_entry(caps->properties, height);
+ return caps;
+}
-static GList *
+#define gst_v4l2src_v4l2fourcc_to_caps_fixed(f, width, height,c) \
+ gst_v4l2src_v4l2fourcc_to_caps(f, \
+ gst_props_entry_new("width", \
+ GST_PROPS_INT(width)), \
+ gst_props_entry_new("height", \
+ GST_PROPS_INT(height)), \
+ c)
+
+#define gst_v4l2src_v4l2fourcc_to_caps_range(f, min_w, max_w, min_h, max_h, c) \
+ gst_v4l2src_v4l2fourcc_to_caps(f, \
+ gst_props_entry_new("width", \
+ GST_PROPS_INT_RANGE(min_w, max_w)), \
+ gst_props_entry_new("height", \
+ GST_PROPS_INT_RANGE(min_h, max_h)), \
+ c)
+
+static struct v4l2_fmtdesc *
gst_v4l2_caps_to_v4l2fourcc (GstV4l2Src *v4l2src,
- GstCaps *capslist)
+ GstCaps *caps)
{
- GList *fourcclist = NULL;
- GstCaps *caps;
- guint32 fourcc;
gint i;
-
- for (caps = capslist;caps != NULL; caps = caps->next) {
- const gchar *format = gst_caps_get_mime(caps);
-
- if (!strcmp(format, "video/raw")) {
- /* non-compressed */
- gst_caps_get_fourcc_int(caps, "format", &fourcc);
- switch (fourcc) {
- case GST_MAKE_FOURCC('I','4','2','0'):
- case GST_MAKE_FOURCC('I','Y','U','V'):
- fourcclist = g_list_append(fourcclist, (gpointer)V4L2_PIX_FMT_YUV420);
- break;
- case GST_MAKE_FOURCC('Y','U','Y','2'):
- fourcclist = g_list_append(fourcclist, (gpointer)V4L2_PIX_FMT_YUYV);
- break;
- case GST_MAKE_FOURCC('R','G','B',' '): {
- gint depth, endianness;
- gst_caps_get_int(caps, "depth", &depth);
- gst_caps_get_int(caps, "endianness", &endianness);
- if (depth == 8) {
- fourcclist = g_list_append(fourcclist, (gpointer)V4L2_PIX_FMT_RGB332);
- } else if (depth == 15 && endianness == G_LITTLE_ENDIAN) {
- fourcclist = g_list_append(fourcclist, (gpointer)V4L2_PIX_FMT_RGB555);
- } else if (depth == 15 && endianness == G_BIG_ENDIAN) {
- fourcclist = g_list_append(fourcclist, (gpointer)V4L2_PIX_FMT_RGB555X);
- } else if (depth == 16 && endianness == G_LITTLE_ENDIAN) {
- fourcclist = g_list_append(fourcclist, (gpointer)V4L2_PIX_FMT_RGB565);
- } else if (depth == 16 && endianness == G_BIG_ENDIAN) {
- fourcclist = g_list_append(fourcclist, (gpointer)V4L2_PIX_FMT_RGB565X);
- } else if (depth == 24 && endianness == G_LITTLE_ENDIAN) {
- fourcclist = g_list_append(fourcclist, (gpointer)V4L2_PIX_FMT_BGR24);
- } else if (depth == 24 && endianness == G_BIG_ENDIAN) {
- fourcclist = g_list_append(fourcclist, (gpointer)V4L2_PIX_FMT_RGB24);
- } else if (depth == 32 && endianness == G_LITTLE_ENDIAN) {
- fourcclist = g_list_append(fourcclist, (gpointer)V4L2_PIX_FMT_BGR32);
- } else if (depth == 32 && endianness == G_BIG_ENDIAN) {
- fourcclist = g_list_append(fourcclist, (gpointer)V4L2_PIX_FMT_RGB32);
- }
- break; }
- }
-
- for (i=0;i<g_list_length(v4l2src->formats);i++) {
- struct v4l2_fmtdesc *fmt = (struct v4l2_fmtdesc *) g_list_nth_data(v4l2src->formats, i);
- if (fmt->pixelformat == fourcc)
- fourcclist = g_list_append(fourcclist, (gpointer)fourcc);
+ guint32 fourcc = 0;
+ struct v4l2_fmtdesc *end_fmt = NULL;
+ const gchar *format = gst_caps_get_mime(caps);
+
+ if (!strcmp(format, "video/raw")) {
+ /* non-compressed */
+ gst_caps_get_fourcc_int(caps, "format", &fourcc);
+
+ switch (fourcc) {
+ case GST_MAKE_FOURCC('I','4','2','0'):
+ case GST_MAKE_FOURCC('I','Y','U','V'):
+ fourcc = V4L2_PIX_FMT_YUV420;
+ break;
+ case GST_MAKE_FOURCC('Y','U','Y','2'):
+ fourcc = V4L2_PIX_FMT_YUYV;
+ break;
+ case GST_MAKE_FOURCC('Y','4','1','P'):
+ fourcc = V4L2_PIX_FMT_Y41P;
+ break;
+ case GST_MAKE_FOURCC('U','Y','V','Y'):
+ fourcc = V4L2_PIX_FMT_UYVY;
+ break;
+ case GST_MAKE_FOURCC('Y','V','1','2'):
+ fourcc = V4L2_PIX_FMT_YVU420;
+ break;
+ case GST_MAKE_FOURCC('R','G','B',' '): {
+ gint depth, endianness;
+
+ gst_caps_get_int(caps, "depth", &depth);
+ gst_caps_get_int(caps, "endianness", &endianness);
+
+ switch (depth) {
+ case 8:
+ fourcc = V4L2_PIX_FMT_RGB332;
+ break;
+ case 15:
+ fourcc = (endianness == G_LITTLE_ENDIAN) ?
+ V4L2_PIX_FMT_RGB555 :
+ V4L2_PIX_FMT_RGB555X;
+ break;
+ case 16:
+ fourcc = (endianness == G_LITTLE_ENDIAN) ?
+ V4L2_PIX_FMT_RGB565 :
+ V4L2_PIX_FMT_RGB565X;
+ break;
+ case 24:
+ fourcc = (endianness == G_LITTLE_ENDIAN) ?
+ V4L2_PIX_FMT_BGR24 :
+ V4L2_PIX_FMT_RGB24;
+ break;
+ case 32:
+ fourcc = (endianness == G_LITTLE_ENDIAN) ?
+ V4L2_PIX_FMT_BGR32 :
+ V4L2_PIX_FMT_RGB32;
+ break;
}
- } else {
- /* compressed */
- gchar *format_us;
- gint i;
- if (strncmp(format, "video/", 6))
- continue;
- format = &format[6];
- if (strlen(format) != 4)
- continue;
- format_us = g_strdup(format);
- for (i=0;i<4;i++)
- format_us[i] = g_ascii_toupper(format_us[i]);
- fourcc = GST_MAKE_FOURCC(format_us[0],format_us[1],format_us[2],format_us[3]);
- switch (fourcc) {
- case GST_MAKE_FOURCC('J','P','E','G'):
- fourcclist = g_list_append(fourcclist, (gpointer)V4L2_PIX_FMT_MJPEG);
- break;
+ }
+ default:
+ break;
+ }
+ for (i=0;i<g_list_length(v4l2src->formats);i++) {
+ struct v4l2_fmtdesc *fmt;
+ fmt = (struct v4l2_fmtdesc *)
+ g_list_nth_data(v4l2src->formats, i);
+ if (fmt->pixelformat == fourcc) {
+ end_fmt = fmt;
+ break;
}
- fourcclist = g_list_append(fourcclist, (gpointer)fourcc);
}
- }
-
- return fourcclist;
-}
-
-
-static GstCaps *
-gst_v4l2src_caps_intersect (GstCaps *caps1,
- GstCaps *_caps2)
-{
- GstCaps *_list = NULL;
-
- if (!_caps2)
- return caps1;
-
- for (;caps1!=NULL;caps1=caps1->next) {
- GstCaps *caps2 = _caps2;
-
- for (;caps2!=NULL;caps2=caps2->next) {
- if (!strcmp(gst_caps_get_mime(caps1), gst_caps_get_mime(caps2))) {
- if (!strcmp(gst_caps_get_mime(caps1), "video/raw")) {
- guint32 fmt1, fmt2;
- gst_caps_get_fourcc_int(caps1, "format", &fmt1);
- gst_caps_get_fourcc_int(caps2, "format", &fmt2);
- if (fmt1 == fmt2)
- goto try_it_out;
- } else if (!strncmp(gst_caps_get_mime(caps1), "video/", 6)) {
- goto try_it_out;
+ } else {
+ /* compressed */
+ if (strncmp(format, "video/", 6))
+ return NULL;
+ format = &format[6];
+ if (strlen(format) != 4)
+ return NULL;
+ fourcc = GST_MAKE_FOURCC(g_ascii_toupper(format[0]),
+ g_ascii_toupper(format[1]),
+ g_ascii_toupper(format[2]),
+ g_ascii_toupper(format[3]));
+
+ switch (fourcc) {
+ case GST_MAKE_FOURCC('J','P','E','G'): {
+ struct v4l2_fmtdesc *fmt;
+ for (i=0;i<g_list_length(v4l2src->formats);i++) {
+ fmt = g_list_nth_data(v4l2src->formats, i);
+ if (fmt->pixelformat == V4L2_PIX_FMT_MJPEG ||
+ fmt->pixelformat == V4L2_PIX_FMT_JPEG) {
+ end_fmt = fmt;
+ break;
}
- continue;
}
- continue;
-
- try_it_out:
- if (!strcmp(gst_caps_get_mime(caps1), "video/raw")) {
- GstCaps *list = _list;
- for (;list!=NULL;list=list->next) {
- if (!strcmp(gst_caps_get_mime(list), gst_caps_get_mime(caps1))) {
- guint32 fmt1, fmt2;
- gst_caps_get_fourcc_int(caps1, "format", &fmt1);
- gst_caps_get_fourcc_int(list, "format", &fmt2);
- if (fmt1 == fmt2)
- break;
- }
- }
- if (list == NULL)
- goto add_it;
- } else {
- GstCaps *list = _list;
- for (;list!=NULL;list=list->next) {
- if (!strcmp(gst_caps_get_mime(list), gst_caps_get_mime(caps1))) {
- break;
- }
+ break;
+ }
+ default: {
+ /* FIXME: check for fourcc in list */
+ struct v4l2_fmtdesc *fmt;
+ for (i=0;i<g_list_length(v4l2src->formats);i++) {
+ fmt = g_list_nth_data(v4l2src->formats, i);
+ if (fourcc == fmt->pixelformat) {
+ end_fmt = fmt;
+ break;
}
- if (list == NULL)
- goto add_it;
}
- continue;
-
- add_it:
- _list = gst_caps_append(_list, gst_caps_copy_1(caps1));
break;
}
+ }
}
- return _list;
+ return end_fmt;
}
+#define gst_caps_get_int_range(caps, name, min, max) \
+ gst_props_entry_get_int_range(gst_props_get_entry((caps)->properties, \
+ name), \
+ min, max)
+
+
static GstPadLinkReturn
gst_v4l2src_srcconnect (GstPad *pad,
@@ -644,10 +617,9 @@ gst_v4l2src_srcconnect (GstPad *pad,
{
GstV4l2Src *v4l2src;
GstV4l2Element *v4l2element;
- GstCaps *owncapslist;
GstCaps *caps;
- GList *fourccs;
- gint i;
+ struct v4l2_fmtdesc *format;
+ int w, h;
v4l2src = GST_V4L2SRC(gst_pad_get_parent (pad));
v4l2element = GST_V4L2ELEMENT(v4l2src);
@@ -661,45 +633,50 @@ gst_v4l2src_srcconnect (GstPad *pad,
return GST_PAD_LINK_DELAYED;
}
- /* build our own capslist */
- owncapslist = gst_v4l2src_getcaps(pad, NULL);
-
- /* and now, get the caps that we have in common */
- if (!(caps = gst_v4l2src_caps_intersect(owncapslist, vscapslist)))
- return GST_PAD_LINK_REFUSED;
-
- /* and get them back to V4L2-compatible fourcc codes */
- if (!(fourccs = gst_v4l2_caps_to_v4l2fourcc(v4l2src, caps)))
- return GST_PAD_LINK_REFUSED;
-
- /* we now have the fourcc codes. try out each of them */
- for (i=0;i<g_list_length(fourccs);i++) {
- guint32 fourcc = (guint32)g_list_nth_data(fourccs, i);
- gint n;
- for (n=0;n<g_list_length(v4l2src->formats);n++) {
- struct v4l2_fmtdesc *format = g_list_nth_data(v4l2src->formats, n);
- if (format->pixelformat == fourcc) {
- /* we found the pixelformat! - try it out */
- if (gst_v4l2src_set_capture(v4l2src, format,
- v4l2src->width, v4l2src->height)) {
- /* it fits! Now, get the proper counterpart and retry
- * it on the other side (again...) - if it works, we're
- * done -> GST_PAD_LINK_OK */
- GstCaps *lastcaps = gst_v4l2src_v4l2fourcc_to_caps(format->pixelformat,
- v4l2src->format.fmt.pix.width, v4l2src->format.fmt.pix.height,
- format->flags & V4L2_FMT_FLAG_COMPRESSED);
- GstCaps *onecaps;
- for (;lastcaps != NULL; lastcaps = lastcaps->next) {
- GstPadLinkReturn ret_val;
- onecaps = gst_caps_copy_1(lastcaps);
- if ((ret_val = gst_pad_try_set_caps(v4l2src->srcpad, onecaps)) > 0) {
- if (gst_v4l2src_capture_init(v4l2src))
- return GST_PAD_LINK_DONE;
- } else if (ret_val == GST_PAD_LINK_DELAYED) {
- return GST_PAD_LINK_DELAYED;
- }
- }
+ for (caps = vscapslist; caps != NULL; caps = caps->next) {
+ /* we want our own v4l2 type of fourcc codes */
+ if (!(format = gst_v4l2_caps_to_v4l2fourcc(v4l2src, caps))) {
+ continue;
+ }
+ if (gst_caps_has_property(caps, "width")) {
+ if (gst_caps_has_fixed_property(caps, "width")) {
+ gst_caps_get_int(caps, "width", &w);
+ } else {
+ int max;
+ gst_caps_get_int_range(caps, "width", &w, &max);
+ }
+ }
+ if (gst_caps_has_property(caps, "height")) {
+ if (gst_caps_has_fixed_property(caps, "height")) {
+ gst_caps_get_int(caps, "height", &h);
+ } else {
+ int max;
+ gst_caps_get_int_range(caps, "height", &h, &max);
+ }
+ }
+
+ /* we found the pixelformat! - try it out */
+ if (gst_v4l2src_set_capture(v4l2src, format, w, h)) {
+ /* it fits! Now, get the proper counterpart and retry
+ * it on the other side (again...) - if it works, we're
+ * done -> GST_PAD_LINK_OK */
+ GstCaps *lastcaps;
+ GstPadLinkReturn ret_val;
+
+ lastcaps = gst_v4l2src_v4l2fourcc_to_caps_fixed(format->pixelformat,
+ v4l2src->format.fmt.pix.width,
+ v4l2src->format.fmt.pix.height,
+ format->flags & V4L2_FMT_FLAG_COMPRESSED);
+
+ ret_val = gst_pad_try_set_caps(v4l2src->srcpad,
+ lastcaps);
+
+ if (ret_val > 0) {
+ if (gst_v4l2src_capture_init(v4l2src)) {
+ return GST_PAD_LINK_DONE;
}
+ } else if (ret_val == GST_PAD_LINK_DELAYED) {
+ return GST_PAD_LINK_DELAYED;
}
}
}
@@ -713,32 +690,36 @@ gst_v4l2src_getcaps (GstPad *pad,
GstCaps *caps)
{
GstV4l2Src *v4l2src = GST_V4L2SRC(gst_pad_get_parent (pad));
- GstV4l2Element *v4l2element = GST_V4L2ELEMENT(v4l2src);
- GstCaps *owncapslist;
+ GstCaps *list = NULL;
+ gint i;
+ struct v4l2_fmtdesc *format;
+ int min_w, max_w, min_h, max_h;
- if (!GST_V4L2_IS_OPEN(v4l2element)) {
+ if (!GST_V4L2_IS_OPEN(GST_V4L2ELEMENT(v4l2src))) {
return NULL;
}
/* build our own capslist */
- if (v4l2src->palette) {
- struct v4l2_fmtdesc *format = g_list_nth_data(v4l2src->formats, v4l2src->palette);
- owncapslist = gst_v4l2src_v4l2fourcc_to_caps(format->pixelformat,
- v4l2src->width, v4l2src->height,
- format->flags & V4L2_FMT_FLAG_COMPRESSED);
- } else {
- gint i;
- owncapslist = NULL;
- for (i=0;i<g_list_length(v4l2src->formats);i++) {
- struct v4l2_fmtdesc *format = g_list_nth_data(v4l2src->formats, i);
- caps = gst_v4l2src_v4l2fourcc_to_caps(format->pixelformat,
- v4l2src->width, v4l2src->height,
- format->flags & V4L2_FMT_FLAG_COMPRESSED);
- owncapslist = gst_caps_append(owncapslist, caps);
+ for (i=0;i<g_list_length(v4l2src->formats);i++) {
+ format = g_list_nth_data(v4l2src->formats, i);
+
+ /* get size delimiters */
+ if (!gst_v4l2src_get_size_limits(v4l2src, format,
+ &min_w, &max_w,
+ &min_h, &max_h)) {
+ continue;
}
+
+ /* add to list */
+ caps = gst_v4l2src_v4l2fourcc_to_caps_range(format->pixelformat,
+ min_w, max_w,
+ min_h, max_h,
+ format->flags & V4L2_FMT_FLAG_COMPRESSED);
+
+ list = gst_caps_append(list, caps);
}
- return owncapslist;
+ return list;
}
@@ -866,24 +847,6 @@ gst_v4l2src_set_property (GObject *object,
v4l2src = GST_V4L2SRC(object);
switch (prop_id) {
- case ARG_WIDTH:
- if (!GST_V4L2_IS_ACTIVE(GST_V4L2ELEMENT(v4l2src))) {
- v4l2src->width = g_value_get_int(value);
- }
- break;
-
- case ARG_HEIGHT:
- if (!GST_V4L2_IS_ACTIVE(GST_V4L2ELEMENT(v4l2src))) {
- v4l2src->height = g_value_get_int(value);
- }
- break;
-
- case ARG_PALETTE:
- if (!GST_V4L2_IS_ACTIVE(GST_V4L2ELEMENT(v4l2src))) {
- v4l2src->palette = g_value_get_int(value);
- }
- break;
-
case ARG_NUMBUFS:
if (!GST_V4L2_IS_ACTIVE(GST_V4L2ELEMENT(v4l2src))) {
v4l2src->breq.count = g_value_get_int(value);
@@ -915,22 +878,6 @@ gst_v4l2src_get_property (GObject *object,
v4l2src = GST_V4L2SRC(object);
switch (prop_id) {
- case ARG_WIDTH:
- g_value_set_int(value, v4l2src->width);
- break;
-
- case ARG_HEIGHT:
- g_value_set_int(value, v4l2src->height);
- break;
-
- case ARG_PALETTE:
- g_value_set_int(value, v4l2src->palette);
- break;
-
- case ARG_PALETTE_NAMES:
- g_value_set_pointer(value, v4l2src->format_list);
- break;
-
case ARG_NUMBUFS:
g_value_set_int(value, v4l2src->breq.count);
break;
diff --git a/sys/v4l2/gstv4l2src.h b/sys/v4l2/gstv4l2src.h
index ae457e59..76fc5ef9 100644
--- a/sys/v4l2/gstv4l2src.h
+++ b/sys/v4l2/gstv4l2src.h
@@ -72,11 +72,6 @@ struct _GstV4l2Src {
/* bufferpool for the buffers we're gonna use */
GstBufferPool *bufferpool;
-
- /* caching values */
- gint width;
- gint height;
- gint palette;
};
struct _GstV4l2SrcClass {
diff --git a/sys/v4l2/v4l2src_calls.c b/sys/v4l2/v4l2src_calls.c
index 685b37b4..1f8be1cb 100644
--- a/sys/v4l2/v4l2src_calls.c
+++ b/sys/v4l2/v4l2src_calls.c
@@ -413,3 +413,48 @@ gst_v4l2src_capture_deinit (GstV4l2Src *v4l2src)
return TRUE;
}
+
+
+/*
+
+ */
+
+gboolean
+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;
+
+ /* 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_ANY;
+ 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;
+
+ fmt.fmt.pix.width = G_MAXINT;
+ fmt.fmt.pix.height = G_MAXINT;
+ 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;
+
+ return TRUE;
+}
diff --git a/sys/v4l2/v4l2src_calls.h b/sys/v4l2/v4l2src_calls.h
index 263d89a3..fceb5755 100644
--- a/sys/v4l2/v4l2src_calls.h
+++ b/sys/v4l2/v4l2src_calls.h
@@ -41,5 +41,10 @@ gboolean gst_v4l2src_capture_deinit (GstV4l2Src *v4l2src);
gboolean gst_v4l2src_fill_format_list (GstV4l2Src *v4l2src);
gboolean gst_v4l2src_empty_format_list (GstV4l2Src *v4l2src);
+/* hacky */
+gboolean gst_v4l2src_get_size_limits (GstV4l2Src *v4l2src,
+ struct v4l2_fmtdesc *fmt,
+ gint *min_w, gint *max_w,
+ gint *min_h, gint *max_h);
#endif /* __V4L2_SRC_CALLS_H__ */
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-04 16:50:50 +0000