libcamera: utils: Raspberry Pi Camera Tuning Tool

Initial implementation of the Raspberry Pi (BCM2835) Camera Tuning Tool.

All code is licensed under the BSD-2-Clause terms.
Copyright (c) 2019-2020 Raspberry Pi Trading Ltd.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 70 insertions, 0 deletions

diff --git a/utils/raspberrypi/ctt/ctt_pretty_print_json.py b/utils/raspberrypi/ctt/ctt_pretty_print_json.py
new file mode 100644
index 00000000..44a9311b
--- /dev/null
+++ b/utils/raspberrypi/ctt/ctt_pretty_print_json.py
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: BSD-2-Clause
+#
+# Copyright (C) 2019, Raspberry Pi (Trading) Limited
+#
+# ctt_pretty_print_json.py - camera tuning tool JSON formatter
+
+"""
+takes a collapsed json file and makes it more readable
+"""
+def process_file(string, fout, state):
+    for c in string:
+        process_char(c, fout, state)
+
+def print_newline(fout, state):
+    fout.write('\n')
+    fout.write(' '*state["indent"]*4)
+
+def process_char(c, fout, state):
+    if c == '{':
+        if not state["skipnewline"]: print_newline(fout, state)
+        fout.write(c)
+        state["indent"] += 1
+        print_newline(fout, state)
+    elif c == '}':
+        state["indent"] -= 1
+        print_newline(fout, state)
+        fout.write(c)
+    elif c == '[':
+        print_newline(fout, state)
+        fout.write(c)
+        state["indent"] += 1
+        print_newline(fout, state)
+        state["inarray"] = [True] + state["inarray"]
+        state["arraycount"] = [0] + state["arraycount"]
+    elif c == ']':
+        state["indent"] -= 1
+        print_newline(fout, state)
+        state["inarray"].pop(0)
+        state["arraycount"].pop(0)
+        fout.write(c)
+    elif c == ':':
+        fout.write(c)
+        fout.write(' ')
+    elif c == ' ':
+        pass
+    elif c == ',':
+        if not state["inarray"][0]:
+            fout.write(c)
+            fout.write(' ')
+            print_newline(fout, state)
+        else:
+            fout.write(c)
+            state["arraycount"][0] += 1
+            if state["arraycount"][0] == 16:
+                state["arraycount"][0] = 0
+                print_newline(fout, state)
+            else:
+                fout.write(' ')
+    else:
+        fout.write(c)
+    state["skipnewline"] = (c == '[')
+
+def pretty_print_json(str_in, output_filename):
+    state = {"indent": 0, "inarray": [False], "arraycount": [], "skipnewline" : True}
+    with open(output_filename, "w") as fout:
+        process_file(str_in, fout, state)
+
+
+if __name__ == '__main__':
+    pretty_print_json("../ctt/ref_json/final_imx477.json", "pretty.json")