Pixel Format descriptor, try #1.

(yes its intentionally unused, this is intended as a basis for further
 work, and to prevent repeation of the whole discussion dying and the
 results being forgotten)

Originally committed as revision 17548 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 187 insertions, 0 deletions

diff --git a/libavcodec/pixdesc.c b/libavcodec/pixdesc.c
new file mode 100644
index 0000000000..7791fe6271
--- /dev/null
+++ b/libavcodec/pixdesc.c
@@ -0,0 +1,187 @@
+/*
+ * Pixel Format descriptor
+ * Copyright (c) 2009 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/pixfmt.h"
+#include "pixdesc.h"
+
+static const AVPixFmtDescriptor pix_fmt_desc[PIX_FMT_NB] = {
+    [PIX_FMT_YUV422P] = {
+        .nb_channels  = 3,
+        .log2_chroma_w= 1,
+        .log2_chroma_h= 0,
+        .comp = {
+            {0,0,1,0,7},
+            {1,0,1,0,7},
+            {2,0,1,0,7},
+        },
+    },
+    [PIX_FMT_YUV420P] = {
+        .nb_channels  = 3,
+        .log2_chroma_w= 1,
+        .log2_chroma_h= 1,
+        .comp = {
+            {0,0,1,0,7},
+            {1,0,1,0,7},
+            {2,0,1,0,7},
+        },
+    },
+    [PIX_FMT_YUV410P] = {
+        .nb_channels  = 3,
+        .log2_chroma_w= 2,
+        .log2_chroma_h= 2,
+        .comp = {
+            {0,0,1,0,7},
+            {1,0,1,0,7},
+            {2,0,1,0,7},
+        },
+    },
+    [PIX_FMT_NV12] = {
+        .nb_channels  = 3,
+        .log2_chroma_w= 1,
+        .log2_chroma_h= 1,
+        .comp = {
+            {0,0,1,0,7},
+            {1,1,1,0,7},
+            {1,1,2,0,7},
+        },
+    },
+    [PIX_FMT_YUYV422] = {
+        .nb_channels  = 3,
+        .log2_chroma_w= 1,
+        .log2_chroma_h= 0,
+        .comp = {
+            {0,1,1,0,7},
+            {0,3,2,0,7},
+            {0,3,4,0,7},
+        },
+    },
+    [PIX_FMT_UYVY422] = {
+        .nb_channels  = 3,
+        .log2_chroma_w= 1,
+        .log2_chroma_h= 0,
+        .comp = {
+            {0,1,2,0,7},
+            {0,3,1,0,7},
+            {0,3,3,0,7},
+        },
+    },
+    [PIX_FMT_GRAY16LE] = {
+        .nb_channels  = 1,
+        .log2_chroma_w= 0,
+        .log2_chroma_h= 0,
+        .comp = {
+            {0,1,1,0,15},
+        },
+    },
+    [PIX_FMT_GRAY16BE] = {
+        .nb_channels  = 1,
+        .log2_chroma_w= 0,
+        .log2_chroma_h= 0,
+        .comp = {
+            {0,1,1,0,15},
+        },
+        .flags = PIX_FMT_BE,
+    },
+    [PIX_FMT_RGB24] = {
+        .nb_channels  = 3,
+        .log2_chroma_w= 0,
+        .log2_chroma_h= 0,
+        .comp = {
+            {0,2,1,0,7},
+            {0,2,2,0,7},
+            {0,2,3,0,7},
+        },
+    },
+    [PIX_FMT_RGBA] = {
+        .nb_channels  = 4,
+        .log2_chroma_w= 0,
+        .log2_chroma_h= 0,
+        .comp = {
+            {0,3,1,0,7},
+            {0,3,2,0,7},
+            {0,3,3,0,7},
+            {0,3,4,0,7},
+        },
+    },
+    [PIX_FMT_RGB48LE] = {
+        .nb_channels  = 3,
+        .log2_chroma_w= 0,
+        .log2_chroma_h= 0,
+        .comp = {
+            {0,5,1,0,15},
+            {0,5,3,0,15},
+            {0,5,5,0,15},
+        },
+    },
+    [PIX_FMT_RGB48BE] = {
+        .nb_channels  = 3,
+        .log2_chroma_w= 0,
+        .log2_chroma_h= 0,
+        .comp = {
+            {0,5,1,0,15},
+            {0,5,3,0,15},
+            {0,5,5,0,15},
+        },
+        .flags = PIX_FMT_BE,
+    },
+//FIXME chaneg pix fmt defines so that we have a LE & BE instead of a Native endian
+#if 0
+    [PIX_FMT_RGB565_LE] = {
+        .nb_channels  = 3,
+        .log2_chroma_w= 0,
+        .log2_chroma_h= 0,
+        .comp = {
+            {0,1,1,0,4},
+            {0,1,1,5,5},
+            {0,1,2,3,4},
+        },
+    },
+    [PIX_FMT_RGB565_BE] = {
+        .nb_channels  = 3,
+        .log2_chroma_w= 0,
+        .log2_chroma_h= 0,
+        .comp = {
+            {0,1,1, 0,4},
+            {0,1,1, 5,5},
+            {0,1,0, 3,4},
+        },
+        .flags = PIX_FMT_BE,
+    },
+#endif
+    [PIX_FMT_MONOBLACK] = {
+        .nb_channels  = 1,
+        .log2_chroma_w= 0,
+        .log2_chroma_h= 0,
+        .comp = {
+            {0,0,1,7,0},
+        },
+        .flags = PIX_FMT_BITSTREAM,
+    },
+    [PIX_FMT_PAL8] = {
+        .nb_channels  = 1,
+        .log2_chroma_w= 0,
+        .log2_chroma_h= 0,
+        .comp = {
+            {0,0,1,0,7},
+        },
+        .flags = PIX_FMT_PAL,
+    },
+};