From 41187a6fd789e8ed11ddee799826b8dd6333aa09 Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Sat, 5 Aug 2017 14:19:26 +0200
Subject: [PATCH 1/3] libavutil: add GRAY9 pixel format

---
 libavutil/pixdesc.c | 21 +++++++++++++++++++++
 libavutil/pixfmt.h  |  4 ++++
 2 files changed, 25 insertions(+)

diff --git a/libavutil/pixdesc.c b/libavutil/pixdesc.c
index cea5b0f..9f1c21c 100644
--- a/libavutil/pixdesc.c
+++ b/libavutil/pixdesc.c
@@ -560,6 +560,27 @@ static const AVPixFmtDescriptor av_pix_fmt_descriptors[AV_PIX_FMT_NB] = {
         },
         .flags = AV_PIX_FMT_FLAG_RGB,
     },
+    [AV_PIX_FMT_GRAY9BE] = {
+        .name = "gray9be",
+        .nb_components = 1,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 9, 1, 8, 1 },       /* Y */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE,
+        .alias = "y9be",
+    },
+    [AV_PIX_FMT_GRAY9LE] = {
+        .name = "gray9le",
+        .nb_components = 1,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 9, 1, 8, 1 },       /* Y */
+        },
+        .alias = "y9le",
+    },
     [AV_PIX_FMT_GRAY10BE] = {
         .name = "gray10be",
         .nb_components = 1,
diff --git a/libavutil/pixfmt.h b/libavutil/pixfmt.h
index e1e4074..5798507 100644
--- a/libavutil/pixfmt.h
+++ b/libavutil/pixfmt.h
@@ -326,6 +326,9 @@ enum AVPixelFormat {
      */
     AV_PIX_FMT_D3D11,
 
+    AV_PIX_FMT_GRAY9BE,   ///<        Y        , 9bpp, big-endian
+    AV_PIX_FMT_GRAY9LE,   ///<        Y        , 9bpp, little-endian
+
     AV_PIX_FMT_NB         ///< number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of formats might differ between versions
 };
 
@@ -342,6 +345,7 @@ enum AVPixelFormat {
 #define AV_PIX_FMT_0RGB32  AV_PIX_FMT_NE(0RGB, BGR0)
 #define AV_PIX_FMT_0BGR32  AV_PIX_FMT_NE(0BGR, RGB0)
 
+#define AV_PIX_FMT_GRAY9  AV_PIX_FMT_NE(GRAY9BE,  GRAY9LE)
 #define AV_PIX_FMT_GRAY10 AV_PIX_FMT_NE(GRAY10BE, GRAY10LE)
 #define AV_PIX_FMT_GRAY12 AV_PIX_FMT_NE(GRAY12BE, GRAY12LE)
 #define AV_PIX_FMT_GRAY16 AV_PIX_FMT_NE(GRAY16BE, GRAY16LE)
-- 
2.9.1