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video: Add NV16_10LE32 support

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This adds a 10 bit variant for NV16 packed into 32 bits little endian
words. The MSB 2 bits are padding. This format is used on Xilinx SoC and
identified with the FOURCC XV20.

https://bugzilla.gnome.org/show_bug.cgi?id=789876
This commit is contained in:
Nicolas Dufresne 2017-11-03 12:18:27 -04:00
parent f7a27d7403
commit c256e96047
4 changed files with 167 additions and 1 deletions
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1
gst-libs/gst/video/video-converter.c
View file

@ -5882,6 +5882,7 @@ get_scale_format (GstVideoFormat format, gint plane)
case GST_VIDEO_FORMAT_P010_10LE:
case GST_VIDEO_FORMAT_GRAY10_LE32:
case GST_VIDEO_FORMAT_NV12_10LE32:
case GST_VIDEO_FORMAT_NV16_10LE32:
res = format;
g_assert_not_reached ();
break;

156
gst-libs/gst/video/video-format.c
View file

@ -4781,6 +4781,157 @@ pack_NV12_10LE32 (const GstVideoFormatInfo * info, GstVideoPackFlags flags,
}
}
#define PACK_NV16_10LE32 GST_VIDEO_FORMAT_AYUV64, unpack_NV16_10LE32, 1, pack_NV16_10LE32
static void
unpack_NV16_10LE32 (const GstVideoFormatInfo * info, GstVideoPackFlags flags,
gpointer dest, const gpointer data[GST_VIDEO_MAX_PLANES],
const gint stride[GST_VIDEO_MAX_PLANES], gint x, gint y, gint width)
{
gint i;
const guint32 *restrict sy = GET_PLANE_LINE (0, y);
const guint32 *restrict suv = GET_PLANE_LINE (1, y);
guint16 *restrict d = dest;
gint num_words = (width + 2) / 3;
guint32 UV = 0;
guint16 Un = 0, Vn = 0;
/* Y data is packed into little endian 32bit words, with the 2 MSB being
* padding. There is only 1 pattern.
* -> padding | Y1 | Y2 | Y3
*
* UV is packed the same way, though we end up with 2 patterns:
* -> U | V | U | padding
* -> V | U | V | padding
*/
/* FIXME unroll the 6 states ? */
for (i = 0; i < num_words; i++) {
gint num_comps = MIN (3, width - i * 3);
guint pix = i * 3;
gsize doff = pix * 4;
gint c;
guint32 Y;
Y = GST_READ_UINT32_LE (sy + i);
for (c = 0; c < num_comps; c++) {
guint16 Yn;
/* For Y, we simply read 10 bit and shift it out */
Yn = (Y & 0x03ff) << 6;
Y >>= 10;
/* Unpacking UV has been reduced to a cycle of 6 states. The following
* code is a reduce version of:
* 0: - Read first UV word (UVU)
* Unpack U and V
* 1: - Resued U/V from 1 (sub-sampling)
* 2: - Unpack remaining U value
* - Read following UV word (VUV)
* - Unpack V value
* 3: - Reuse U/V from 2 (sub-sampling)
* 4: - Unpack remaining U
* - Unpack remaining V
* 5: - Reuse UV/V from 4 (sub-sampling)
*/
switch ((pix + c) % 6) {
case 0:
UV = GST_READ_UINT32_LE (suv + i);
/* fallthrough */
case 4:
Un = (UV & 0x03ff) << 6;
UV >>= 10;
Vn = (UV & 0x03ff) << 6;
UV >>= 10;
break;
case 2:
Un = (UV & 0x03ff) << 6;
UV = GST_READ_UINT32_LE (suv + i + 1);
Vn = (UV & 0x03ff) << 6;
UV >>= 10;
break;
default:
/* keep value */
break;
}
if (G_UNLIKELY (pix + c < x))
continue;
if (!(flags & GST_VIDEO_PACK_FLAG_TRUNCATE_RANGE)) {
Yn |= Yn >> 10;
Un |= Un >> 10;
Vn |= Vn >> 10;
}
d[doff + 0] = 0xffff;
d[doff + 1] = Yn;
d[doff + 2] = Un;
d[doff + 3] = Vn;
doff += 4;
}
}
}
static void
pack_NV16_10LE32 (const GstVideoFormatInfo * info, GstVideoPackFlags flags,
const gpointer src, gint sstride, gpointer data[GST_VIDEO_MAX_PLANES],
const gint stride[GST_VIDEO_MAX_PLANES], GstVideoChromaSite chroma_site,
gint y, gint width)
{
gint i;
guint32 *restrict dy = GET_PLANE_LINE (0, y);
guint32 *restrict duv = GET_PLANE_LINE (1, y);
const guint16 *restrict s = src;
gint num_words = (width + 2) / 3;
guint32 UV = 0;
/* FIXME unroll the 6 states ? */
for (i = 0; i < num_words; i++) {
gint num_comps = MIN (3, width - i * 3);
guint pix = i * 3;
gsize soff = pix * 4;
gint c;
guint32 Y = 0;
for (c = 0; c < num_comps; c++) {
Y <<= 10;
Y |= s[soff + 1] >> 6;
switch ((pix + c) % 6) {
case 0:
UV = s[soff + 2] >> 6;
UV |= s[soff + 3] >> 6 << 10;
break;
case 2:
UV |= s[soff + 2] >> 6 << 20;
GST_WRITE_UINT32_LE (duv + i, UV);
UV = s[soff + 3] >> 6;
break;
case 4:
UV |= s[soff + 2] >> 6 << 10;
UV |= s[soff + 3] >> 6 << 20;
GST_WRITE_UINT32_LE (duv + i, UV);
break;
default:
/* keep value */
break;
}
}
GST_WRITE_UINT32_LE (dy + i, Y);
if (num_comps < 3)
GST_WRITE_UINT32_LE (duv + i, UV);
soff += 4;
}
}
typedef struct
{
guint32 fourcc;
@ -5097,6 +5248,9 @@ static const VideoFormat formats[] = {
MAKE_YUV_C_LE_FORMAT (NV12_10LE32, "raw video",
GST_MAKE_FOURCC ('X', 'V', '1', '5'), DPTH10_10_10, PSTR0, PLANE011,
OFFS001, SUB420, PACK_NV12_10LE32),
MAKE_YUV_C_LE_FORMAT (NV16_10LE32, "raw video",
GST_MAKE_FOURCC ('X', 'V', '2', '0'), DPTH10_10_10, PSTR0, PLANE011,
OFFS001, SUB422, PACK_NV16_10LE32),
};
static GstVideoFormat
@ -5333,6 +5487,8 @@ gst_video_format_from_fourcc (guint32 fourcc)
return GST_VIDEO_FORMAT_GRAY10_LE32;
case GST_MAKE_FOURCC ('X', 'V', '1', '5'):
return GST_VIDEO_FORMAT_NV12_10LE32;
case GST_MAKE_FOURCC ('X', 'V', '2', '0'):
return GST_VIDEO_FORMAT_NV16_10LE32;
default:
return GST_VIDEO_FORMAT_UNKNOWN;
}

4
gst-libs/gst/video/video-format.h
View file

@ -88,6 +88,7 @@ G_BEGIN_DECLS
* @GST_VIDEO_FORMAT_GBR_10BE: planar 4:4:4 RGB, 10 bits per channel (Since: 1.2)
* @GST_VIDEO_FORMAT_GBR_10LE: planar 4:4:4 RGB, 10 bits per channel (Since: 1.2)
* @GST_VIDEO_FORMAT_NV16: planar 4:2:2 YUV with interleaved UV plane (Since: 1.2)
* @GST_VIDEO_FORMAT_NV16_10LE32: 10-bit variant of @GST_VIDEO_FORMAT_NV16, packet in 32bit words (MSB 2 bits padding) (Since: 1.X)
* @GST_VIDEO_FORMAT_NV24: planar 4:4:4 YUV with interleaved UV plane (Since: 1.2)
* @GST_VIDEO_FORMAT_NV12_64Z32: NV12 with 64x32 tiling in zigzag pattern (Since: 1.4)
* @GST_VIDEO_FORMAT_A420_10BE: planar 4:4:2:0 YUV, 10 bits per channel (Since: 1.6)
@ -196,6 +197,7 @@ typedef enum {
GST_VIDEO_FORMAT_Y444_12LE,
GST_VIDEO_FORMAT_GRAY10_LE32,
GST_VIDEO_FORMAT_NV12_10LE32,
GST_VIDEO_FORMAT_NV16_10LE32,
} GstVideoFormat;
#define GST_VIDEO_MAX_PLANES 4
@ -547,7 +549,7 @@ gconstpointer gst_video_format_get_palette (GstVideoFormat format, gsi
"A420_10LE, A422_10BE, A422_10LE, A444_10BE, A444_10LE, NV61, P010_10BE, " \
"P010_10LE, IYU2, VYUY, GBRA, GBRA_10BE, GBRA_10LE, GBR_12BE, GBR_12LE, " \
"GBRA_12BE, GBRA_12LE, I420_12BE, I420_12LE, I422_12BE, I422_12LE, " \
"Y444_12BE, Y444_12LE, GRAY10_LE32, NV12_10LE32 }"
"Y444_12BE, Y444_12LE, GRAY10_LE32, NV12_10LE32, NV16_10LE32 }"
/**
* GST_VIDEO_CAPS_MAKE:

7
gst-libs/gst/video/video-info.c
View file

@ -1021,6 +1021,13 @@ fill_planes (GstVideoInfo * info)
cr_h = GST_ROUND_UP_2 (cr_h);
info->size = info->offset[1] + info->stride[0] * cr_h;
break;
case GST_VIDEO_FORMAT_NV16_10LE32:
info->stride[0] = (width + 2) / 3 * 4;
info->stride[1] = info->stride[0];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
info->size = info->stride[0] * height * 2;
break;
case GST_VIDEO_FORMAT_ENCODED:
break;