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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
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15
sys/bitflow/gstbitflowsrc.c
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@@ -359,20 +359,21 @@ gst_bitflowsrc_start (GstBaseSrc * bsrc)
}
gst_video_info_init (&vinfo);
vinfo.width = width;
vinfo.height = height;
if (bpp <= 8) {
vinfo.finfo = gst_video_format_get_info (GST_VIDEO_FORMAT_GRAY8);
gst_video_info_set_format (&vinfo, GST_VIDEO_FORMAT_GRAY8, width, height);
src->caps = gst_video_info_to_caps (&vinfo);
} else if (bpp > 8 && bpp <= 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);
}
src->caps = gst_video_info_to_caps (&vinfo);
/* set bpp, extra info for GRAY16 so elements can scale properly */