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v4l2: Also set colorimetry on output devices

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This completes the code that set the colorimetry on output
device.
This commit is contained in:
Nicolas Dufresne 2015-06-08 19:11:41 -04:00
parent 87a4884acd
commit 0f81b2e99c
1 changed files with 127 additions and 12 deletions
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139
sys/v4l2/gstv4l2object.c
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@ -2814,6 +2814,9 @@ gst_v4l2_object_set_format_full (GstV4l2Object * v4l2object, GstCaps * caps,
gint i = 0;
gboolean is_mplane;
enum v4l2_colorspace colorspace = 0;
enum v4l2_quantization range = 0;
enum v4l2_ycbcr_encoding matrix = 0;
enum v4l2_xfer_func transfer = 0;
GST_V4L2_CHECK_OPEN (v4l2object);
if (!try_only)
@ -2851,14 +2854,118 @@ gst_v4l2_object_set_format_full (GstV4l2Object * v4l2object, GstCaps * caps,
}
if (V4L2_TYPE_IS_OUTPUT (v4l2object->type)) {
/* We should set colorspace if we have it */
if (gst_video_colorimetry_matches (&info.colorimetry, "bt601")) {
colorspace = V4L2_COLORSPACE_SMPTE170M;
} else if (gst_video_colorimetry_matches (&info.colorimetry, "bt709")) {
colorspace = V4L2_COLORSPACE_REC709;
} else if (gst_video_colorimetry_matches (&info.colorimetry, "smpte240m")) {
colorspace = V4L2_COLORSPACE_SMPTE240M;
} else {
/* We first pick th main colorspace from the primaries */
switch (info.colorimetry.primaries) {
case GST_VIDEO_COLOR_PRIMARIES_BT709:
/* There is two colorspaces using these primaries, use the range to
* differentiate */
if (info.colorimetry.range == GST_VIDEO_COLOR_RANGE_16_235)
colorspace = V4L2_COLORSPACE_REC709;
else
colorspace = V4L2_COLORSPACE_SRGB;
break;
case GST_VIDEO_COLOR_PRIMARIES_BT470M:
colorspace = V4L2_COLORSPACE_470_SYSTEM_M;
break;
case GST_VIDEO_COLOR_PRIMARIES_BT470BG:
colorspace = V4L2_COLORSPACE_470_SYSTEM_BG;
break;
case GST_VIDEO_COLOR_PRIMARIES_SMPTE170M:
colorspace = V4L2_COLORSPACE_SMPTE170M;
break;
case GST_VIDEO_COLOR_PRIMARIES_SMPTE240M:
colorspace = V4L2_COLORSPACE_SMPTE240M;
break;
case GST_VIDEO_COLOR_PRIMARIES_FILM:
case GST_VIDEO_COLOR_PRIMARIES_UNKNOWN:
/* We don't know, we will guess */
break;
default:
GST_WARNING_OBJECT (v4l2object->element,
"Unknown colorimetry primaries %d", info.colorimetry.primaries);
break;
}
switch (info.colorimetry.range) {
case GST_VIDEO_COLOR_RANGE_0_255:
range = V4L2_QUANTIZATION_FULL_RANGE;
break;
case GST_VIDEO_COLOR_RANGE_16_235:
range = V4L2_QUANTIZATION_LIM_RANGE;
break;
case GST_VIDEO_COLOR_RANGE_UNKNOWN:
/* We let the driver pick a default one */
break;
default:
GST_WARNING_OBJECT (v4l2object->element,
"Unknown colorimetry range %d", info.colorimetry.range);
break;
}
switch (info.colorimetry.matrix) {
case GST_VIDEO_COLOR_MATRIX_RGB:
/* Unspecified, leave to default */
break;
/* FCC is about the same as BT601 with less digit */
case GST_VIDEO_COLOR_MATRIX_FCC:
case GST_VIDEO_COLOR_MATRIX_BT601:
matrix = V4L2_YCBCR_ENC_601;
break;
case GST_VIDEO_COLOR_MATRIX_BT709:
matrix = V4L2_YCBCR_ENC_709;
break;
case GST_VIDEO_COLOR_MATRIX_SMPTE240M:
matrix = V4L2_YCBCR_ENC_SMPTE240M;
break;
case GST_VIDEO_COLOR_MATRIX_BT2020:
matrix = V4L2_YCBCR_ENC_BT2020;
break;
case GST_VIDEO_COLOR_MATRIX_UNKNOWN:
/* We let the driver pick a default one */
break;
default:
GST_WARNING_OBJECT (v4l2object->element,
"Unknown colorimetry matrix %d", info.colorimetry.matrix);
break;
}
switch (info.colorimetry.transfer) {
case GST_VIDEO_TRANSFER_GAMMA18:
case GST_VIDEO_TRANSFER_GAMMA20:
case GST_VIDEO_TRANSFER_GAMMA22:
case GST_VIDEO_TRANSFER_GAMMA28:
GST_WARNING_OBJECT (v4l2object->element,
"GAMMA 18, 20, 22, 28 transfer functions not supported");
case GST_VIDEO_TRANSFER_GAMMA10:
transfer = V4L2_XFER_FUNC_NONE;
break;
case GST_VIDEO_TRANSFER_BT709:
transfer = V4L2_XFER_FUNC_709;
break;
case GST_VIDEO_TRANSFER_SMPTE240M:
transfer = V4L2_XFER_FUNC_SMPTE240M;
break;
case GST_VIDEO_TRANSFER_SRGB:
transfer = V4L2_XFER_FUNC_SRGB;
break;
case GST_VIDEO_TRANSFER_LOG100:
case GST_VIDEO_TRANSFER_LOG316:
GST_WARNING_OBJECT (v4l2object->element,
"LOG 100, 316 transfer functions not supported");
/* FIXME No known sensible default, maybe AdobeRGB ? */
break;
case GST_VIDEO_TRANSFER_UNKNOWN:
/* We let the driver pick a default one */
break;
default:
GST_WARNING_OBJECT (v4l2object->element,
"Unknown colorimetry tranfer %d", info.colorimetry.transfer);
break;
}
if (colorspace == 0) {
/* Try to guess colorspace according to pixelformat and size */
if (GST_VIDEO_INFO_IS_YUV (&info)) {
/* SD streams likely use SMPTE170M and HD streams REC709 */
@ -2868,6 +2975,7 @@ gst_v4l2_object_set_format_full (GstV4l2Object * v4l2object, GstCaps * caps,
colorspace = V4L2_COLORSPACE_REC709;
} else if (GST_VIDEO_INFO_IS_RGB (&info)) {
colorspace = V4L2_COLORSPACE_SRGB;
transfer = V4L2_XFER_FUNC_NONE;
}
}
}
@ -2939,13 +3047,20 @@ gst_v4l2_object_set_format_full (GstV4l2Object * v4l2object, GstCaps * caps,
#endif
if (V4L2_TYPE_IS_OUTPUT (v4l2object->type)) {
if (is_mplane)
if (is_mplane) {
format.fmt.pix_mp.colorspace = colorspace;
else
format.fmt.pix_mp.quantization = range;
format.fmt.pix_mp.ycbcr_enc = matrix;
format.fmt.pix_mp.xfer_func = transfer;
} else {
format.fmt.pix.colorspace = colorspace;
format.fmt.pix.quantization = range;
format.fmt.pix.ycbcr_enc = matrix;
format.fmt.pix.xfer_func = transfer;
}
GST_DEBUG_OBJECT (v4l2object->element, "Desired colorspace is %d",
colorspace);
GST_DEBUG_OBJECT (v4l2object->element, "Desired colorspace is %d:%d:%d:%d",
colorspace, range, matrix, transfer);
}
if (try_only) {