[FFmpeg-cvslog] swscale/output: don't leave the alpha channel undefined in vuyx and xv36le

James Almer git at videolan.org
Tue Aug 13 20:50:53 EEST 2024


ffmpeg | branch: master | James Almer <jamrial at gmail.com> | Tue Aug 13 11:19:24 2024 -0300| [66592e8b100f4b521b48962f15940e19ef6eed48] | committer: James Almer

swscale/output: don't leave the alpha channel undefined in vuyx and xv36le

It's non-determistic, as shown by poisoning avfilter buffers instead of zeroing them.

Signed-off-by: James Almer <jamrial at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=66592e8b100f4b521b48962f15940e19ef6eed48
---

 libswscale/output.c                      | 38 +++++---------------------------
 tests/ref/fate/filter-pixfmts-copy       |  4 ++--
 tests/ref/fate/filter-pixfmts-crop       |  4 ++--
 tests/ref/fate/filter-pixfmts-field      |  4 ++--
 tests/ref/fate/filter-pixfmts-fieldorder |  4 ++--
 tests/ref/fate/filter-pixfmts-hflip      |  4 ++--
 tests/ref/fate/filter-pixfmts-il         |  4 ++--
 tests/ref/fate/filter-pixfmts-null       |  4 ++--
 tests/ref/fate/filter-pixfmts-pad        |  2 +-
 tests/ref/fate/filter-pixfmts-scale      |  4 ++--
 tests/ref/fate/filter-pixfmts-transpose  |  4 ++--
 tests/ref/fate/filter-pixfmts-vflip      |  4 ++--
 12 files changed, 27 insertions(+), 53 deletions(-)

diff --git a/libswscale/output.c b/libswscale/output.c
index e8dd2145ce..abfb0fd1ce 100644
--- a/libswscale/output.c
+++ b/libswscale/output.c
@@ -2650,7 +2650,7 @@ yuv2xv36le_X_c(SwsContext *c, const int16_t *lumFilter,
 {
     int i;
     for (i = 0; i < dstW; i++) {
-        int Y = 1 << 14, U = 1 << 14, V = 1 << 14;
+        int Y = 1 << 14, U = 1 << 14, V = 1 << 14, A = 255;
         int j;
 
         for (j = 0; j < lumFilterSize; j++)
@@ -2664,6 +2664,7 @@ yuv2xv36le_X_c(SwsContext *c, const int16_t *lumFilter,
         AV_WL16(dest + 8 * i + 2, av_clip_uintp2(Y >> 15, 12) << 4);
         AV_WL16(dest + 8 * i + 0, av_clip_uintp2(U >> 15, 12) << 4);
         AV_WL16(dest + 8 * i + 4, av_clip_uintp2(V >> 15, 12) << 4);
+        AV_WL16(dest + 8 * i + 6, A);
     }
 }
 
@@ -2672,10 +2673,8 @@ yuv2vuyX_X_c(SwsContext *c, const int16_t *lumFilter,
              const int16_t **lumSrc, int lumFilterSize,
              const int16_t *chrFilter, const int16_t **chrUSrc,
              const int16_t **chrVSrc, int chrFilterSize,
-             const int16_t **alpSrc, uint8_t *dest, int dstW, int y,
-             int destHasAlpha)
+             const int16_t **alpSrc, uint8_t *dest, int dstW, int y)
 {
-    int hasAlpha = destHasAlpha && (!!alpSrc);
     int i;
 
     for (i = 0; i < dstW; i++) {
@@ -2703,7 +2702,7 @@ yuv2vuyX_X_c(SwsContext *c, const int16_t *lumFilter,
         if (V  & 0x100)
             V = av_clip_uint8(V);
 
-        if (hasAlpha) {
+        if (alpSrc) {
             A = 1 << 18;
 
             for (j = 0; j < lumFilterSize; j++)
@@ -2718,33 +2717,10 @@ yuv2vuyX_X_c(SwsContext *c, const int16_t *lumFilter,
         dest[4 * i    ] = V;
         dest[4 * i + 1] = U;
         dest[4 * i + 2] = Y;
-        if (destHasAlpha)
-            dest[4 * i + 3] = A;
+        dest[4 * i + 3] = A;
     }
 }
 
-static void
-yuv2vuya_X_c(SwsContext *c, const int16_t *lumFilter,
-             const int16_t **lumSrc, int lumFilterSize,
-             const int16_t *chrFilter, const int16_t **chrUSrc,
-             const int16_t **chrVSrc, int chrFilterSize,
-             const int16_t **alpSrc, uint8_t *dest, int dstW, int y)
-{
-    yuv2vuyX_X_c(c, lumFilter, lumSrc, lumFilterSize, chrFilter,
-                 chrUSrc, chrVSrc, chrFilterSize, alpSrc, dest, dstW, y, 1);
-}
-
-static void
-yuv2vuyx_X_c(SwsContext *c, const int16_t *lumFilter,
-             const int16_t **lumSrc, int lumFilterSize,
-             const int16_t *chrFilter, const int16_t **chrUSrc,
-             const int16_t **chrVSrc, int chrFilterSize,
-             const int16_t **alpSrc, uint8_t *dest, int dstW, int y)
-{
-    yuv2vuyX_X_c(c, lumFilter, lumSrc, lumFilterSize, chrFilter,
-                 chrUSrc, chrVSrc, chrFilterSize, alpSrc, dest, dstW, y, 0);
-}
-
 #define output_pixel(pos, val, bits) \
     AV_WL16(pos, av_clip_uintp2(val >> shift, bits) << output_shift);
 
@@ -3298,10 +3274,8 @@ av_cold void ff_sws_init_output_funcs(SwsContext *c,
         *yuv2packedX = yuv2ayuv64le_X_c;
         break;
     case AV_PIX_FMT_VUYA:
-        *yuv2packedX = yuv2vuya_X_c;
-        break;
     case AV_PIX_FMT_VUYX:
-        *yuv2packedX = yuv2vuyx_X_c;
+        *yuv2packedX = yuv2vuyX_X_c;
         break;
     case AV_PIX_FMT_XV30LE:
         *yuv2packedX = yuv2xv30le_X_c;
diff --git a/tests/ref/fate/filter-pixfmts-copy b/tests/ref/fate/filter-pixfmts-copy
index eb3e61b4f2..120129dc1e 100644
--- a/tests/ref/fate/filter-pixfmts-copy
+++ b/tests/ref/fate/filter-pixfmts-copy
@@ -98,11 +98,11 @@ rgba64be            ae2ae04b5efedca3505f47c4dd6ea6ea
 rgba64le            b91e1d77f799eb92241a2d2d28437b15
 uyvy422             3bcf3c80047592f2211fae3260b1b65d
 vuya                3d5e934651cae1ce334001cb1829ad22
-vuyx                3f68ea6ec492b30d867cb5401562264e
+vuyx                0af13a42f9d0932c5a9bb6a8a5d1c5ee
 x2bgr10le           550c0d190cf695afa4eaacb644db6b75
 x2rgb10le           c1e3ac21be04a16bb157b22784524520
 xv30le              c14b5a953bf3be56346f66ca174a5b1b
-xv36le              3f8ced42a081639a39ec5929dd77b017
+xv36le              6b8e46832aa8537a774e93dd7503c700
 xyz12be             a1ef56bf746d71f59669c28e48fc8450
 xyz12le             831ff03c1ba4ef19374686f16a064d8c
 y210le              0736b017e0814daf38d3350c42796f7a
diff --git a/tests/ref/fate/filter-pixfmts-crop b/tests/ref/fate/filter-pixfmts-crop
index 01cb88bc54..4731e96fc0 100644
--- a/tests/ref/fate/filter-pixfmts-crop
+++ b/tests/ref/fate/filter-pixfmts-crop
@@ -95,11 +95,11 @@ rgba                9488ac85abceaf99a9309eac5a87697e
 rgba64be            89910046972ab3c68e2a348302cc8ca9
 rgba64le            fea8ebfc869b52adf353778f29eac7a7
 vuya                76578a705ff3a37559653c1289bd03dd
-vuyx                5d2bae51a2f4892bd5f177f190cc323b
+vuyx                615241c5406eb556fca0ad8606c23a02
 x2bgr10le           84de725b85662c362862820dc4a309aa
 x2rgb10le           f4265aca7a67dbfa9354370098ca6f33
 xv30le              a9edb820819b900a4a897fee4562a4fb
-xv36le              90a187adf00a1b15c33d064ae2582804
+xv36le              567af630bf0209e026e0909b3ca9c436
 xyz12be             cb4571f9aaa7b59f999ef327276104b7
 xyz12le             cd6aae8d26b18bdb4b9d068586276d91
 ya16be              a3d18014454942a96f15a49947c0c55d
diff --git a/tests/ref/fate/filter-pixfmts-field b/tests/ref/fate/filter-pixfmts-field
index c7d9b8f133..0727d733f2 100644
--- a/tests/ref/fate/filter-pixfmts-field
+++ b/tests/ref/fate/filter-pixfmts-field
@@ -98,11 +98,11 @@ rgba64be            23c8c0edaabe3eaec89ce69633fb0048
 rgba64le            dfdba4de4a7cac9abf08852666c341d3
 uyvy422             1c49e44ab3f060e85fc4a3a9464f045e
 vuya                f72bcf29d75cd143d0c565f7cc49119a
-vuyx                6257cd1ce11330660e9fa9c675acbdcc
+vuyx                3d02eeab336d0a8106f6fdd91be61073
 x2bgr10le           dbe21538d7cb1744914f6bd46ec09b55
 x2rgb10le           a18bc4ae5274e0a8cca9137ecd50c677
 xv30le              e940366c78efc9e292e9de28cf04dba9
-xv36le              aa5a867879a70e1040dfafe3e03167d5
+xv36le              e05a99fc3edc8f26cb2dbd287c0a0fcf
 xyz12be             d2fa69ec91d3ed862f2dac3f8e7a3437
 xyz12le             02bccd5e0b6824779a1f848b0ea3e3b5
 y210le              025beb25f047a762e3788dbea4b60864
diff --git a/tests/ref/fate/filter-pixfmts-fieldorder b/tests/ref/fate/filter-pixfmts-fieldorder
index 2f64bd3b14..1d7a98ce11 100644
--- a/tests/ref/fate/filter-pixfmts-fieldorder
+++ b/tests/ref/fate/filter-pixfmts-fieldorder
@@ -87,11 +87,11 @@ rgba64be            5598f44514d122b9a57c5c92c20bbc61
 rgba64le            b34e6e30621ae579519a2d91a96a0acf
 uyvy422             75de70e31c435dde878002d3f22b238a
 vuya                a3891d4168ff208948fd0b3ba0910495
-vuyx                d7a900e970c9a69ed41f8b220114b9fa
+vuyx                9e4480c5fcb7c091ec3e517420764ef3
 x2bgr10le           86474d84f26c5c51d6f75bf7e1de8da8
 x2rgb10le           cdf6a9e8a8d081aa768c6ae2e6221676
 xv30le              25aac48128d94010a3660839500caee5
-xv36le              1bde4bee8b938d7bf20e75bc848e4765
+xv36le              1f054a1ba4c8f8875ffd15d3d1baccba
 xyz12be             15f5cda71de5fef9cec5e75e3833b6bc
 xyz12le             7be6c8781f38c21a6b8f602f62ca31e6
 y210le              ee45acfb1386288af98af5313162ff3e
diff --git a/tests/ref/fate/filter-pixfmts-hflip b/tests/ref/fate/filter-pixfmts-hflip
index 66274890a7..43404db154 100644
--- a/tests/ref/fate/filter-pixfmts-hflip
+++ b/tests/ref/fate/filter-pixfmts-hflip
@@ -95,11 +95,11 @@ rgba                51961c723ea6707e0a410cd3f21f15d3
 rgba64be            c910444019f4cfbf4d995227af55da8d
 rgba64le            0c810d8b3a6bca10321788e1cb145340
 vuya                7e530261e7ac4eae4fd616fd7572d0b8
-vuyx                3ce9890363cad3984521293be1eb679c
+vuyx                f1d087284fb1556d76e6def5f94bf273
 x2bgr10le           827cc659f29378e00c5a7d2c0ada8f9a
 x2rgb10le           d4a8189b65395a88d0a38a7053f3359f
 xv30le              072aa2b61ce1e764f9d1957e8abee9a9
-xv36le              cc569285784e38a489f4a286598f05da
+xv36le              6e9c3d2334f9fe2a0e6156615e53e272
 xyz12be             25f90259ff8a226befdaec3dfe82996e
 xyz12le             926c0791d59aaff61b2778e8ada3316d
 ya16be              d5b342355bdd9e3197e01b13b7c6301e
diff --git a/tests/ref/fate/filter-pixfmts-il b/tests/ref/fate/filter-pixfmts-il
index 03519f2a9d..4a6f15f074 100644
--- a/tests/ref/fate/filter-pixfmts-il
+++ b/tests/ref/fate/filter-pixfmts-il
@@ -97,11 +97,11 @@ rgba64be            db70d33aa6c06f3e0a1c77bd11284261
 rgba64le            a8a2daae04374a27219bc1c890204007
 uyvy422             d6ee3ca43356d08c392382b24b22cda5
 vuya                b9deab5ba249dd608b709c09255a4932
-vuyx                49cc92fcc002ec0f312017014dd68c0c
+vuyx                4251d94ee49e6a3cc1c10c09cd331308
 x2bgr10le           135acaff8318cf9861bb0f7849a9e5e9
 x2rgb10le           517fb186f523dc7cdc5c5c6967cfbe94
 xv30le              7f6414a3fc700380025c29812e8376a9
-xv36le              066378fad80e34bc3edd22f657be6ff8
+xv36le              cfebfdccb16087207bab0b1909c9d85c
 xyz12be             7c7d54c55f136cbbc50b18029f3be0b3
 xyz12le             090ba6b1170baf2b1358b43b971d33b0
 y210le              306ec4238b49dbc8625a97b678ea1c5f
diff --git a/tests/ref/fate/filter-pixfmts-null b/tests/ref/fate/filter-pixfmts-null
index eb3e61b4f2..120129dc1e 100644
--- a/tests/ref/fate/filter-pixfmts-null
+++ b/tests/ref/fate/filter-pixfmts-null
@@ -98,11 +98,11 @@ rgba64be            ae2ae04b5efedca3505f47c4dd6ea6ea
 rgba64le            b91e1d77f799eb92241a2d2d28437b15
 uyvy422             3bcf3c80047592f2211fae3260b1b65d
 vuya                3d5e934651cae1ce334001cb1829ad22
-vuyx                3f68ea6ec492b30d867cb5401562264e
+vuyx                0af13a42f9d0932c5a9bb6a8a5d1c5ee
 x2bgr10le           550c0d190cf695afa4eaacb644db6b75
 x2rgb10le           c1e3ac21be04a16bb157b22784524520
 xv30le              c14b5a953bf3be56346f66ca174a5b1b
-xv36le              3f8ced42a081639a39ec5929dd77b017
+xv36le              6b8e46832aa8537a774e93dd7503c700
 xyz12be             a1ef56bf746d71f59669c28e48fc8450
 xyz12le             831ff03c1ba4ef19374686f16a064d8c
 y210le              0736b017e0814daf38d3350c42796f7a
diff --git a/tests/ref/fate/filter-pixfmts-pad b/tests/ref/fate/filter-pixfmts-pad
index 73ae9d0f96..abf4fceb46 100644
--- a/tests/ref/fate/filter-pixfmts-pad
+++ b/tests/ref/fate/filter-pixfmts-pad
@@ -42,7 +42,7 @@ rgb24               17f9e2e0c609009acaf2175c42d4a2a5
 rgb48le             ed08db9b1aa50d69b8c3d73db93e390e
 rgba                b157c90191463d34fb3ce77b36c96386
 vuya                44368c0a758ee68e24ce976e3b1b8535
-vuyx                bc7c4f693a22cd1ac95e33d473086474
+vuyx                ff637b205b78ee581e393124d0f44f5d
 ya16le              dfc900a8130a7c5e64201557cbaef50a
 ya8                 5d25e9a7975805d3f0dac516a6132b6e
 yuv410p             cb871dcc1e84a7ef1d21f9237b88cf6e
diff --git a/tests/ref/fate/filter-pixfmts-scale b/tests/ref/fate/filter-pixfmts-scale
index b11384068b..2052d3f2f0 100644
--- a/tests/ref/fate/filter-pixfmts-scale
+++ b/tests/ref/fate/filter-pixfmts-scale
@@ -98,11 +98,11 @@ rgba64be            ee73e57923af984b31cc7795d13929da
 rgba64le            783d2779adfafe3548bdb671ec0de69e
 uyvy422             aeb4ba4f9f003ae21f6d18089198244f
 vuya                ffa817e283bf6a0b6fba21b07523ccaa
-vuyx                ba182200e20e0c82765eba15217848d3
+vuyx                a6ff68f46c6b4b7595ec91b2a497df8e
 x2bgr10le           d57b9a99033cc7b65ddd111578f2d385
 x2rgb10le           d56bdb23fa6a8e12a0b4394987f89935
 xv30le              afe68d8a47e8460e0164970b1da0c5be
-xv36le              eaf5fbd9d5ea04aeefb40f3d7c2ea289
+xv36le              4242e35b87fcdfbc3f17370c591577c7
 xyz12be             c7ba8345998c0141ddc079cdd29b1a40
 xyz12le             95f5d3a0de834cc495c9032a14987cde
 y210le              1c2708a520477f955d1fedf6ca7a41bd
diff --git a/tests/ref/fate/filter-pixfmts-transpose b/tests/ref/fate/filter-pixfmts-transpose
index ec157dee0c..0a395f7e71 100644
--- a/tests/ref/fate/filter-pixfmts-transpose
+++ b/tests/ref/fate/filter-pixfmts-transpose
@@ -87,11 +87,11 @@ rgba                4d76a9542143752a4ac30f82f88f68f1
 rgba64be            a60041217f4c0cd796d19d3940a12a41
 rgba64le            ad47197774858858ae7b0c177dffa459
 vuya                9ece18a345beb17cd19e09e443eca4bf
-vuyx                4c2929cd1c6e5512f62e802f482f0ef2
+vuyx                46b5b821d7ee6ddedb3ddafd1e5b007c
 x2bgr10le           4aa774b6d8f6d446a64f1f288e5c97eb
 x2rgb10le           09cb1d98fe17ad8a6d9d3bec97ddc845
 xv30le              b1ac5a12f46d32c70acb63f89838ab76
-xv36le              f15a1d1af2a2967ec6a5efebc87e1ef1
+xv36le              a819ca57db4187a3effe2bd5e374e932
 xyz12be             68e5cba640f6e4ef72dff950e88b5342
 xyz12le             8b6b6a6db4d7561e80db88ccaecce7a9
 ya16be              3e161cb5f225922a80fefdc9cc02a4f9
diff --git a/tests/ref/fate/filter-pixfmts-vflip b/tests/ref/fate/filter-pixfmts-vflip
index 9a7972d6cf..5ba28917a7 100644
--- a/tests/ref/fate/filter-pixfmts-vflip
+++ b/tests/ref/fate/filter-pixfmts-vflip
@@ -98,11 +98,11 @@ rgba64be            17e6273323b5779b5f3f775f150c1011
 rgba64le            48f45b10503b7dd140329c3dd0d54c98
 uyvy422             3a237e8376264e0cfa78f8a3fdadec8a
 vuya                fb849f76e56181e005c31fce75d7038c
-vuyx                7a8079a97610e2c1c97aa8832b58a102
+vuyx                ed7de87da324b39090a8961dfd56ca5a
 x2bgr10le           795b66a5fc83cd2cf300aae51c230f80
 x2rgb10le           262c502230cf3724f8e2cf4737f18a42
 xv30le              7e29ee107a1fabf3c7251f337d4b9fe5
-xv36le              aad3c6b5799b4e46a9c9ac27ee7db9bd
+xv36le              bf1cbef0745f90881e15f5c5db3c5949
 xyz12be             810644e008deb231850d779aaa27cc7e
 xyz12le             829701db461b43533cf9241e0743bc61
 y210le              9544c81f8e1fc95e9fa4009dbecfea25



More information about the ffmpeg-cvslog mailing list