[FFmpeg-devel] [PATCH 2/8] swscale: Add swscale input support for Y210

[Linjie Fu]

Add swscale input support for Y210, output support and fate
test could be added later if there is requirement for software
CSC to this packed format.

Signed-off-by: Linjie Fu <linjie...@intel.com>
---
 libswscale/input.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 libswscale/utils.c |  2 ++
 2 files changed, 50 insertions(+)

diff --git a/libswscale/input.c b/libswscale/input.c
index 064f8da..f79b983 100644
--- a/libswscale/input.c
+++ b/libswscale/input.c
@@ -552,6 +552,42 @@ static void yvy2ToUV_c(uint8_t *dstU, uint8_t *dstV, const 
uint8_t *unused0, con
     av_assert1(src1 == src2);
 }
 
+static void y210le_UV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *unused0, 
const uint8_t *src,
+                        const uint8_t *unused1, int width, uint32_t *unused2)
+{
+    int i;
+    for (i = 0; i < width; i++) {
+        AV_WN16(dstU + i * 2, AV_RL16(src + i * 8 + 2) >> 6);
+        AV_WN16(dstV + i * 2, AV_RL16(src + i * 8 + 6) >> 6);
+    }
+}
+
+static void y210be_UV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *unused0, 
const uint8_t *src,
+                        const uint8_t *unused1, int width, uint32_t *unused2)
+{
+    int i;
+    for (i = 0; i < width; i++) {
+        AV_WN16(dstU + i * 2, AV_RB16(src + i * 8 + 2) >> 6);
+        AV_WN16(dstV + i * 2, AV_RB16(src + i * 8 + 6) >> 6);
+    }
+}
+
+static void y210le_Y_c(uint8_t *dst, const uint8_t *src, const uint8_t 
*unused0,
+                       const uint8_t *unused1, int width, uint32_t *unused2)
+{
+    int i;
+    for (i = 0; i < width; i++)
+        AV_WN16(dst + i * 2, AV_RL16(src + i * 4) >> 6);
+}
+
+static void y210be_Y_c(uint8_t *dst, const uint8_t *src, const uint8_t 
*unused0,
+                       const uint8_t *unused1, int width, uint32_t *unused2)
+{
+    int i;
+    for (i = 0; i < width; i++)
+        AV_WN16(dst + i * 2 ,AV_RB16(src + i * 4) >> 6);
+}
+
 static void bswap16Y_c(uint8_t *_dst, const uint8_t *_src, const uint8_t 
*unused1, const uint8_t *unused2, int width,
                        uint32_t *unused)
 {
@@ -1154,6 +1190,12 @@ av_cold void ff_sws_init_input_funcs(SwsContext *c)
     case AV_PIX_FMT_P016BE:
         c->chrToYV12 = p016BEToUV_c;
         break;
+    case AV_PIX_FMT_Y210LE:
+        c->chrToYV12 = y210le_UV_c;
+        break;
+    case AV_PIX_FMT_Y210BE:
+        c->chrToYV12 = y210be_UV_c;
+        break;
     }
     if (c->chrSrcHSubSample) {
         switch (srcFormat) {
@@ -1586,6 +1628,12 @@ av_cold void ff_sws_init_input_funcs(SwsContext *c)
         c->lumToYV12 = grayf32ToY16_bswap_c;
 #endif
         break;
+    case AV_PIX_FMT_Y210LE:
+        c->lumToYV12 = y210le_Y_c;
+        break;
+    case AV_PIX_FMT_Y210BE:
+        c->chrToYV12 = y210be_Y_c;
+        break;
     }
     if (c->needAlpha) {
         if (is16BPS(srcFormat) || isNBPS(srcFormat)) {
diff --git a/libswscale/utils.c b/libswscale/utils.c
index 57c4fd2..bff498f 100644
--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -266,6 +266,8 @@ static const FormatEntry format_entries[AV_PIX_FMT_NB] = {
     [AV_PIX_FMT_YUVA444P12LE] = { 1, 1 },
     [AV_PIX_FMT_NV24]        = { 1, 1 },
     [AV_PIX_FMT_NV42]        = { 1, 1 },
+    [AV_PIX_FMT_Y210BE]      = { 1, 0 },
+    [AV_PIX_FMT_Y210LE]      = { 1, 0 },
 };
 
 int sws_isSupportedInput(enum AVPixelFormat pix_fmt)
-- 
2.7.4

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