swscale: re-add support for non-native endianness.

This works through some non-obvious hacks in utils.c.

libswscale/swscale.c

@@ -2133,20 +2133,26 @@ find_c_packed_planar_out_funcs(SwsContext *c,
             *yuv2packed2 = yuv2bgr24_2_c;
             *yuv2packedX = yuv2bgr24_X_c;
             break;
-        case PIX_FMT_RGB565:
-        case PIX_FMT_BGR565:
+        case PIX_FMT_RGB565LE:
+        case PIX_FMT_RGB565BE:
+        case PIX_FMT_BGR565LE:
+        case PIX_FMT_BGR565BE:
             *yuv2packed1 = yuv2rgb16_1_c;
             *yuv2packed2 = yuv2rgb16_2_c;
             *yuv2packedX = yuv2rgb16_X_c;
             break;
-        case PIX_FMT_RGB555:
-        case PIX_FMT_BGR555:
+        case PIX_FMT_RGB555LE:
+        case PIX_FMT_RGB555BE:
+        case PIX_FMT_BGR555LE:
+        case PIX_FMT_BGR555BE:
             *yuv2packed1 = yuv2rgb15_1_c;
             *yuv2packed2 = yuv2rgb15_2_c;
             *yuv2packedX = yuv2rgb15_X_c;
             break;
-        case PIX_FMT_RGB444:
-        case PIX_FMT_BGR444:
+        case PIX_FMT_RGB444LE:
+        case PIX_FMT_RGB444BE:
+        case PIX_FMT_BGR444LE:
+        case PIX_FMT_BGR444BE:
             *yuv2packed1 = yuv2rgb12_1_c;
             *yuv2packed2 = yuv2rgb12_2_c;
             *yuv2packedX = yuv2rgb12_X_c;

libswscale/utils.c

@@ -146,12 +146,18 @@ int sws_isSupportedInput(enum PixelFormat pix_fmt)
         || (x)==PIX_FMT_YUVJ444P    \
         || isRGBinBytes(x)          \
         || isBGRinBytes(x)          \
-        || (x)==PIX_FMT_RGB565      \
-        || (x)==PIX_FMT_RGB555      \
-        || (x)==PIX_FMT_RGB444      \
-        || (x)==PIX_FMT_BGR565      \
-        || (x)==PIX_FMT_BGR555      \
-        || (x)==PIX_FMT_BGR444      \
+        || (x)==PIX_FMT_RGB565LE    \
+        || (x)==PIX_FMT_RGB565BE    \
+        || (x)==PIX_FMT_RGB555LE    \
+        || (x)==PIX_FMT_RGB555BE    \
+        || (x)==PIX_FMT_RGB444LE    \
+        || (x)==PIX_FMT_RGB444BE    \
+        || (x)==PIX_FMT_BGR565LE    \
+        || (x)==PIX_FMT_BGR565BE    \
+        || (x)==PIX_FMT_BGR555LE    \
+        || (x)==PIX_FMT_BGR555BE    \
+        || (x)==PIX_FMT_BGR444LE    \
+        || (x)==PIX_FMT_BGR444BE    \
         || (x)==PIX_FMT_RGB8        \
         || (x)==PIX_FMT_BGR8        \
         || (x)==PIX_FMT_RGB4_BYTE   \

tests/ref/lavfi/pixdesc_le

@@ -4,7 +4,9 @@ bgr24               0d0cb38ab3fa0b2ec0865c14f78b217b
 bgr48be             4ba0ff7fc9e011ea264610ad1585bb1f
 bgr48le             d022bfdd6a07d5dcc693799322a386b4
 bgr4_byte           50d23cc82d9dcef2fd12adb81fb9b806
+bgr555be            49f01b1f1f0c84fd9e776dd34cc3c280
 bgr555le            378d6ac4223651a1adcbf94a3d0d807b
+bgr565be            257cf78afa35dc31e9696f139c916715
 bgr565le            1dfdd03995c287e3c754b164bf26a355
 bgr8                24bd566170343d06fec6fccfff5abc54
 bgra                76a18a5151242fa137133f604cd624d2
@@ -19,7 +21,9 @@ rgb24               b41eba9651e1b5fe386289b506188105
 rgb48be             460b6de89b156290a12d3941db8bd731
 rgb48le             cd93cb34d15996987367dabda3a10128
 rgb4_byte           c93ba89b74c504e7f5ae9d9ab1546c73
+rgb555be            912a62c5e53bfcbac2a0340e10973cf2
 rgb555le            a937a0fc764fb57dc1b3af87cba0273c
+rgb565be            9cadf742e05ddc23a3b5b270f89aad3c
 rgb565le            d39aa298bb525e9be8860351c6f62dab
 rgb8                4a9d8e4f2f154e83a7e1735be6300700
 rgba                93a5b3712e6eb8c5b9a09ffc7b9fbc12

tests/ref/lavfi/pixfmts_copy_le

@@ -4,7 +4,9 @@ bgr24               0d0cb38ab3fa0b2ec0865c14f78b217b
 bgr48be             4ba0ff7fc9e011ea264610ad1585bb1f
 bgr48le             d022bfdd6a07d5dcc693799322a386b4
 bgr4_byte           50d23cc82d9dcef2fd12adb81fb9b806
+bgr555be            49f01b1f1f0c84fd9e776dd34cc3c280
 bgr555le            378d6ac4223651a1adcbf94a3d0d807b
+bgr565be            257cf78afa35dc31e9696f139c916715
 bgr565le            1dfdd03995c287e3c754b164bf26a355
 bgr8                24bd566170343d06fec6fccfff5abc54
 bgra                76a18a5151242fa137133f604cd624d2
@@ -19,7 +21,9 @@ rgb24               b41eba9651e1b5fe386289b506188105
 rgb48be             460b6de89b156290a12d3941db8bd731
 rgb48le             cd93cb34d15996987367dabda3a10128
 rgb4_byte           c93ba89b74c504e7f5ae9d9ab1546c73
+rgb555be            912a62c5e53bfcbac2a0340e10973cf2
 rgb555le            a937a0fc764fb57dc1b3af87cba0273c
+rgb565be            9cadf742e05ddc23a3b5b270f89aad3c
 rgb565le            d39aa298bb525e9be8860351c6f62dab
 rgb8                4a9d8e4f2f154e83a7e1735be6300700
 rgba                93a5b3712e6eb8c5b9a09ffc7b9fbc12

tests/ref/lavfi/pixfmts_crop_le

@@ -4,7 +4,9 @@ bgr24               3450fd00cf1493d1ded75544d82ba3ec
 bgr48be             90cb5d373a1123432d63c6a10c101afa
 bgr48le             9371f54ceda9010f1199e86f4930ac3f
 bgr4_byte           2f6ac3cdd4676ab4e2982bdf0664945b
+bgr555be            d3a7c273604723adeb7e5f5dd1c4272b
 bgr555le            d22442fc13b464f9ba455b08df4e981f
+bgr565be            fadceef4a64ad6873fcb43ddee0deb3c
 bgr565le            891664e5a54ae5968901347da92bc5e9
 bgr8                4b7159e05765bd4703180072d86423c8
 bgra                395c9f706fccda721471acaa5c96c16c
@@ -15,7 +17,9 @@ rgb24               3b90ed64b687d3dc186c6ef521dc71a8
 rgb48be             a808128041a1962deaa8620c7448feba
 rgb48le             ce92d02cc322608d5be377cb1940677b
 rgb4_byte           6958029f73c6cdfed4f71020d816f027
+rgb555be            41a7d1836837bc90f2cae19a9c9df3b3
 rgb555le            eeb78f8ce6186fba55c941469e60ba67
+rgb565be            b2d1cb525f3a0cfe27753c0d479b2fa9
 rgb565le            6a49700680be9a0d434411825a769556
 rgb8                88b0398c265d1ed7a837dc084fa0917c
 rgba                fd00b24c7597268c32759a84a1de2de4

tests/ref/lavfi/pixfmts_hflip_le

@@ -4,7 +4,9 @@ bgr24               cc53d2011d097972db0d22756c3699e3
 bgr48be             11641cf0f4516a9aed98f7872720f801
 bgr48le             b5440734eed128554dd9f83b34ba582f
 bgr4_byte           aac987e7d1a6a96477cfc0b48a4285de
+bgr555be            bc07265898440116772200390d70c092
 bgr555le            ccee08679bac84a1f960c6c9070c5538
+bgr565be            e088789ce46224b87c6e46610ef19add
 bgr565le            3703466e19e1b52e03a34fd244a8e8e4
 bgr8                50b505a889f0428242305acb642da107
 bgra                01ca21e7e6a8d1281b4553bde8e8a404
@@ -15,7 +17,9 @@ rgb24               754f1722fc738590cc407ac65749bfe8
 rgb48be             10743e1577dc3198dbbc7c0b3b8f429e
 rgb48le             dd945a44f39119221407bf7a04f1bc49
 rgb4_byte           c8a3f995fcf3e0919239ea2c413ddc29
+rgb555be            045ce8607d3910586f4d97481dda8632
 rgb555le            8778ee0cf58ce9ad1d99a1eca9f95e87
+rgb565be            c8022a1b2470e72f124e4389fad4c372
 rgb565le            2cb690eb3fcb72da3771ad6a48931158
 rgb8                9e462b811b9b6173397b9cfc1f6b2f17
 rgba                d3d0dc1ecef3ed72f26a2986d0efc204

tests/ref/lavfi/pixfmts_null_le

@@ -4,7 +4,9 @@ bgr24               0d0cb38ab3fa0b2ec0865c14f78b217b
 bgr48be             4ba0ff7fc9e011ea264610ad1585bb1f
 bgr48le             d022bfdd6a07d5dcc693799322a386b4
 bgr4_byte           50d23cc82d9dcef2fd12adb81fb9b806
+bgr555be            49f01b1f1f0c84fd9e776dd34cc3c280
 bgr555le            378d6ac4223651a1adcbf94a3d0d807b
+bgr565be            257cf78afa35dc31e9696f139c916715
 bgr565le            1dfdd03995c287e3c754b164bf26a355
 bgr8                24bd566170343d06fec6fccfff5abc54
 bgra                76a18a5151242fa137133f604cd624d2
@@ -19,7 +21,9 @@ rgb24               b41eba9651e1b5fe386289b506188105
 rgb48be             460b6de89b156290a12d3941db8bd731
 rgb48le             cd93cb34d15996987367dabda3a10128
 rgb4_byte           c93ba89b74c504e7f5ae9d9ab1546c73
+rgb555be            912a62c5e53bfcbac2a0340e10973cf2
 rgb555le            a937a0fc764fb57dc1b3af87cba0273c
+rgb565be            9cadf742e05ddc23a3b5b270f89aad3c
 rgb565le            d39aa298bb525e9be8860351c6f62dab
 rgb8                4a9d8e4f2f154e83a7e1735be6300700
 rgba                93a5b3712e6eb8c5b9a09ffc7b9fbc12

tests/ref/lavfi/pixfmts_scale_le

@@ -4,7 +4,9 @@ bgr24               570f8d6b51a838aed022ef67535f6bdc
 bgr48be             fcc0f2dbf45d325f84f816c74cbeeebe
 bgr48le             3f9c2b23eed3b8d196d1c14b38ce50f5
 bgr4_byte           ee1d35a7baf8e9016891929a2f565c0b
+bgr555be            de8901c1358834fddea060fcb3a67beb
 bgr555le            36b745067197f9ca8c1731cac51329c9
+bgr565be            922a2503767036ae9536f4f7823c04ee
 bgr565le            3a514a298c6161a071ddf9963c06509d
 bgr8                7f007fa6c153a16e808a9c51605a4016
 bgra                a5e7040f9a80cccd65e5acf2ca09ace5
@@ -19,7 +21,9 @@ rgb24               514692e28e8ff6860e415ce4fcf6eb8c
 rgb48be             1894cd30dabcd3180518e4d5f09f25e7
 rgb48le             1354e6e27ce3c1d4d4989ee56030c94b
 rgb4_byte           d81ffd3add95842a618eec81024f0b5c
+rgb555be            4607309f9f217d51cbb53d13b84b4537
 rgb555le            a350ef1dc2c9688ed49e7ba018843795
+rgb565be            678ce231c4ea13629c1353b1df4ffbef
 rgb565le            6f4bb711238baa762d73305213f8d035
 rgb8                091d0170b354ef0e97312b95feb5483f
 rgba                a3d362f222098a00e63867f612018659

tests/ref/lavfi/pixfmts_vflip_le

@@ -4,7 +4,9 @@ bgr24               89108a4ba00201f79b75b9305c42352d
 bgr48be             ed82382da09b64a8e04728fcf76e6814
 bgr48le             0f1f135608c2ff24d26d03e939fc2112
 bgr4_byte           407fcf564ed764c38e1d748f700ab921
+bgr555be            f739d2519f7e9d494359bf67a3821537
 bgr555le            bd7b3ec4d684dfad075d89a606cb8b74
+bgr565be            f19e9a4786395e1ddcd51399c98c9f6c
 bgr565le            fdb617533e1e7ff512ea5b6b6233e738
 bgr8                c60f93fd152c6903391d1fe9decd3547
 bgra                7f9b799fb48544e49ce93e91d7f9fca8
@@ -19,7 +21,9 @@ rgb24               eaefabc168d0b14576bab45bc1e56e1e
 rgb48be             4e0c384163ebab06a08e74637beb02bc
 rgb48le             a77bfeefcd96750cf0e1917a2e2bf1e7
 rgb4_byte           8c6ff02df0b06dd2d574836c3741b2a2
+rgb555be            40dc33cfb5cf56aac1c5a290ac486c36
 rgb555le            4f8eaad29a17e0f8e9d8ab743e76b999
+rgb565be            b57623ad9df74648339311a0edcebc7b
 rgb565le            73f247a3315dceaea3022ac7c197c5ef
 rgb8                13a8d89ef78d8127297d899005456ff0
 rgba                1fc6e920a42ec812aaa3b2aa02f37987