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fix caps to avoid videoconvert bug in 1.8 which corrupts data

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Previous way of creating caps left invalid colorimetry field 0:0:0:0,
which combined with a bug present in GStreamer 1.8 led to GRAY16_LE data
being corrupted when converted to GRAY16_BE (or vice versa). Current
method will properly initialize colorimetry field, avoiding this problem
in 1.8.
This commit is contained in:
Joshua M. Doe
2017-11-16 08:27:08 -05:00
parent f76390323f
commit e4a308a545
10 changed files with 55 additions and 51 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
sys/pixci/gstpixcisrc.c
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@@ -567,6 +567,7 @@ gst_pixcisrc_get_caps (GstBaseSrc * bsrc, GstCaps * filter)
{
GstPixciSrc *src = GST_PIXCI_SRC (bsrc);
GstCaps *caps;
gint width, height;
if (!src->pixci_open) {
caps = gst_pad_get_pad_template_caps (GST_BASE_SRC_PAD (src));
@@ -578,8 +579,8 @@ gst_pixcisrc_get_caps (GstBaseSrc * bsrc, GstCaps * filter)
/* Create video info */
gst_video_info_init (&vinfo);
vinfo.width = pxd_imageXdim ();
vinfo.height = pxd_imageYdim ();
width = pxd_imageXdim ();
height = pxd_imageYdim ();
par = pxd_imageAspectRatio ();
if (par != 0) {
@@ -591,17 +592,20 @@ gst_pixcisrc_get_caps (GstBaseSrc * bsrc, GstCaps * filter)
components = pxd_imageCdim ();
if (components == 1 && bits_per_component <= 8) {
vinfo.finfo = gst_video_format_get_info (GST_VIDEO_FORMAT_GRAY8);
gst_video_info_set_format (&vinfo, GST_VIDEO_FORMAT_GRAY8, width, height);
caps = gst_video_info_to_caps (&vinfo);
} else if (components == 1 &&
bits_per_component > 8 && bits_per_component <= 16) {
GValue val = G_VALUE_INIT;
GstStructure *s;
if (G_BYTE_ORDER == G_LITTLE_ENDIAN)
vinfo.finfo = gst_video_format_get_info (GST_VIDEO_FORMAT_GRAY16_LE);
else if (G_BYTE_ORDER == G_BIG_ENDIAN)
vinfo.finfo = gst_video_format_get_info (GST_VIDEO_FORMAT_GRAY16_BE);
if (G_BYTE_ORDER == G_LITTLE_ENDIAN) {
gst_video_info_set_format (&vinfo, GST_VIDEO_FORMAT_GRAY16_LE, width,
height);
} else if (G_BYTE_ORDER == G_BIG_ENDIAN) {
gst_video_info_set_format (&vinfo, GST_VIDEO_FORMAT_GRAY16_BE, width,
height);
}
caps = gst_video_info_to_caps (&vinfo);
/* set bpp, extra info for GRAY16 so elements can scale properly */