diff options
Diffstat (limited to 'sys/v4l2/gstv4l2src.c')
| -rw-r--r-- | sys/v4l2/gstv4l2src.c | 689 |
1 files changed, 318 insertions, 371 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; |