Messages

I mean infrared remote.

Here original:
https://store.canon.se/canon-rc-6-wireless-remote-control/4524B001/

Thanks @ArcziPL. Just wondering whether Canon RC-6 can trigger multiple EOSMs simultaneously?

There are also dozen alternatives and DYI projects.

https://www.doc-diy.net/photo/eos_ir_remote

Thanks for the very interesting link. I shall check and get back.

If your cams are close to each other, maybe you just need an off-shelf remote for 10€ and by pressing the button all cameras will be triggered. I don't know your setup, you should be more elaborative.

This option seems interesting and economical. Which kind of remote are your referring to?

My setup would be pretty simple. I am planning to take pictures/videos from 3-4 EOSMs, mounted on tripods, set apart approximately 10m from each other in different positions in an area of about 100square meters.

I appreciate your inputs, @ArcziPL. Have a nice weekend and cheers,

Tweaking hardware to add a switch outlet to cam's record button.

Thanks @Walter Schulz. That is something beyond my ability at the momen. So I feel it would be easier to go with @ArcziPL's advise.

You can use IR remote. With some tinkering you could provide every cam a dedicated IR diode to trigger it.

Thanks @ArcziPL. Would you mind being a bit elaborative that which kind of hardware to be plugged in to achieve the goal you suggested.

Cheers,
/z

Has anyone got any idea? Bump. ;-)

From the module_strings.h file it's clear that a) it has bad content

In that case, can you share me the right one or upload to github repo so that I can pull.

and b) where the code must stop early in order to generate that content.  I couldn't work out a reason why it might stop there, it doesn't look possible to me.

You know better as an avid developer. Hats off to you!

Given I can't reproduce the problem and you've given up, I will too.

I have not given up. Just waiting for your inputs.

I tried to compile and build under platforms/EOSM.202 directory with the following error where it says there is stdin.h file

Code Select Expand

magiclantern_simplified/platform/EOSM.202 ]$ make
Using /usr/bin/arm-none-eabi-gcc (from PATH).
[ VERSION  ]   ../../platform/EOSM.202/version.bin
../../build_tools/git_summary.py >> ../../platform/EOSM.202/version.bin
[ CPP      ]   magiclantern.lds
mv tmp.lds magiclantern.lds
[ AS       ]   entry.o
[ AS       ]   ../../platform/EOSM.202/stubs.o
[ VERSION  ]   ../../platform/EOSM.202/version.c
../../build_tools/git_summary.py >> ../../platform/EOSM.202/version.c
[ CC       ]   version.o
[ CC       ]   task_utils.o
In file included from ../../src/arm-mcr.h:34,
                 from ../../src/compiler.h:59,
                 from ../../src/dryos.h:34,
                 from ../../src/task_utils.h:8,
                 from ../../src/task_utils.c:5:
/usr/lib/gcc/arm-none-eabi/9.3.0/include/stdint.h:9:16: fatal error: stdint.h: No such file or directory
    9 | # include_next <stdint.h>
      |                ^~~~~~~~~~
compilation terminated.
make: *** [../../Makefile.filerules:35: task_utils.o] Error 1

But the stated missing file does exist in the specified location:

Code Select Expand

$ ls -la /usr/lib/gcc/arm-none-eabi/9.3.0/include/stdint.h
-rw-r--r-- 1 root root 328 Mar 15  2020 /usr/lib/gcc/arm-none-eabi/9.3.0/include/stdint.h

Hmmm...?!

I'm glad you got it working, but be warned it's likely to stop working on voidlinux; these kind of distros are likely to update some library the binary depends on in a breaking way.

To be honest, Ubuntu broke many a times since it was first released in 2004, voidlinux has not broken in the last four years, and it is easy to compile than going for dependency hell ubuntu creates in every upgrade and the outdated software. Yet this may apply only to me. I consider generalizations are dangerous including this, imho without confirmation bias. ;-)

This suggests the content of module_strings.h is bad.  Please put the file on pastebin or similar and send me the link.

Here comes the paste:
https://termbin.com/z5tn

I also checked whether it is multilib issue, yet no go as seen in the paste in:
https://termbin.com/ab4f

However, I installed lxle (based on18.04) in a vm and it went well both yours as well as Danne's. The binary worked alright in voidlinux too.

I need more info than that in order to fix it

You've helped me find one real problem, which is now fixed for everyone.  If there are more problems remaining, we can fix those too.  This helps everyone who uses ML.

I have a binary that works for me, but that doesn't mean it will work on your system, because it's designed to load the libraries it was built against.  Yours will differ.  Sometimes this works, sometimes it doesn't.

Thanks for your pro bono intention. Here comes the next iteration of error:

Code Select Expand

$ make cr2hdr
Using /usr/bin/arm-none-eabi-gcc (from PATH).
[ gcc      ]   cr2hdr
cr2hdr.c:59:1: warning: return type defaults to 'int' [-Wimplicit-int]
   59 | MODULE_STRINGS()
      | ^~~~~~~~~~~~~~
cr2hdr.c: In function 'MODULE_STRINGS':
cr2hdr.c:63:1: error: parameter 'interp_method' is initialized
   63 | int interp_method = 0;          /* 0:amaze-edge, 1:mean23 */
      | ^~~
cr2hdr.c:64:1: error: parameter 'chroma_smooth_method' is initialized
   64 | int chroma_smooth_method = 2;
      | ^~~
cr2hdr.c:65:1: error: parameter 'fix_pink_dots' is initialized
   65 | int fix_pink_dots = 0;
      | ^~~
cr2hdr.c:66:1: error: parameter 'fix_bad_pixels' is initialized
   66 | int fix_bad_pixels = 1;
      | ^~~
cr2hdr.c:67:1: error: parameter 'use_fullres' is initialized
   67 | int use_fullres = 1;
      | ^~~
cr2hdr.c:68:1: error: parameter 'use_alias_map' is initialized
   68 | int use_alias_map = 1;
      | ^~~
cr2hdr.c:69:1: error: parameter 'use_stripe_fix' is initialized
   69 | int use_stripe_fix = 1;
      | ^~~
cr2hdr.c:70:1: error: parameter 'soft_film_ev' is initialized
   70 | float soft_film_ev = 0;
      | ^~~~~
cr2hdr.c:72:1: error: parameter 'exif_wb' is initialized
   72 | int exif_wb = 0;
      | ^~~
cr2hdr.c:73:1: error: parameter 'custom_wb' is initialized
   73 | float custom_wb[3] = {0, 0, 0};
      | ^~~~~
cr2hdr.c:73:22: error: variable-sized object may not be initialized except with an empty initializer
   73 | float custom_wb[3] = {0, 0, 0};
      |                      ^
cr2hdr.c:73:26: warning: excess elements in scalar initializer
   73 | float custom_wb[3] = {0, 0, 0};
      |                          ^
cr2hdr.c:73:26: note: (near initialization for 'custom_wb')
cr2hdr.c:73:29: warning: excess elements in scalar initializer
   73 | float custom_wb[3] = {0, 0, 0};
      |                             ^
cr2hdr.c:73:29: note: (near initialization for 'custom_wb')
cr2hdr.c:74:1: error: parameter 'debug_wb' is initialized
   74 | int debug_wb = 0;
      | ^~~
cr2hdr.c:78:1: error: parameter 'gray_wb' is initialized
   78 | int gray_wb = WB_GRAY_MAX;
      | ^~~
cr2hdr.c:80:1: error: parameter 'debug_black' is initialized
   80 | int debug_black = 0;
      | ^~~
cr2hdr.c:81:1: error: parameter 'debug_blend' is initialized
   81 | int debug_blend = 0;
      | ^~~
cr2hdr.c:82:1: error: parameter 'debug_amaze' is initialized
   82 | int debug_amaze = 0;
      | ^~~
cr2hdr.c:83:1: error: parameter 'debug_edge' is initialized
   83 | int debug_edge = 0;
      | ^~~
cr2hdr.c:84:1: error: parameter 'debug_alias' is initialized
   84 | int debug_alias = 0;
      | ^~~
cr2hdr.c:85:1: error: parameter 'debug_bad_pixels' is initialized
   85 | int debug_bad_pixels = 0;
      | ^~~
cr2hdr.c:86:1: error: parameter 'debug_rggb' is initialized
   86 | int debug_rggb = 0;
      | ^~~
cr2hdr.c:87:1: error: parameter 'debug_bddb' is initialized
   87 | int debug_bddb = 0;
      | ^~~
cr2hdr.c:88:1: error: parameter 'plot_iso_curve' is initialized
   88 | int plot_iso_curve = 0;
      | ^~~
cr2hdr.c:89:1: error: parameter 'plot_mix_curve' is initialized
   89 | int plot_mix_curve = 0;
      | ^~~
cr2hdr.c:90:1: error: parameter 'plot_fullres_curve' is initialized
   90 | int plot_fullres_curve = 0;
      | ^~~
cr2hdr.c:92:1: error: parameter 'compress' is initialized
   92 | int compress = 0;
      | ^~~
cr2hdr.c:93:1: error: parameter 'same_levels' is initialized
   93 | int same_levels = 0;
      | ^~~
cr2hdr.c:94:1: error: parameter 'skip_existing' is initialized
   94 | int skip_existing = 0;
      | ^~~
cr2hdr.c:95:1: error: parameter 'embed_original' is initialized
   95 | int embed_original = 0;
      | ^~~
cr2hdr.c:97:1: error: parameter 'shortcut_fast' is initialized
   97 | int shortcut_fast = 0;
      | ^~~
cr2hdr.c:100:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  100 | {
      | ^
cr2hdr.c:113:1: warning: empty declaration
  113 | struct cmd_option
      | ^~~~~~
cr2hdr.c:123:1: warning: empty declaration
  123 | struct cmd_group
      | ^~~~~~
cr2hdr.c:130:8: error: parameter 'options' is initialized
  130 | struct cmd_group options[] = {
      |        ^~~~~~~~~
cr2hdr.c:130:30: error: variable-sized object may not be initialized except with an empty initializer
  130 | struct cmd_group options[] = {
      |                              ^
cr2hdr.c:131:5: warning: braces around scalar initializer
  131 |     {
      |     ^
cr2hdr.c:131:5: note: (near initialization for 'options')
cr2hdr.c:132:9: warning: initialization of 'struct cmd_group *' from incompatible pointer type 'char *' [-Wincompatible-pointer-types]
  132 |         "Shortcuts", (struct cmd_option []) {
      |         ^~~~~~~~~~~
cr2hdr.c:132:9: note: (near initialization for 'options')
cr2hdr.c:132:22: warning: excess elements in scalar initializer
  132 |         "Shortcuts", (struct cmd_option []) {
      |                      ^
cr2hdr.c:132:22: note: (near initialization for 'options')
cr2hdr.c:138:5: warning: braces around scalar initializer
  138 |     {
      |     ^
cr2hdr.c:138:5: note: (near initialization for 'options')
cr2hdr.c:139:9: warning: initialization of 'struct cmd_group *' from incompatible pointer type 'char *' [-Wincompatible-pointer-types]
  139 |         "Interpolation methods", (struct cmd_option[]) {
      |         ^~~~~~~~~~~~~~~~~~~~~~~
cr2hdr.c:139:9: note: (near initialization for 'options')
cr2hdr.c:139:34: warning: excess elements in scalar initializer
  139 |         "Interpolation methods", (struct cmd_option[]) {
      |                                  ^
cr2hdr.c:139:34: note: (near initialization for 'options')
cr2hdr.c:138:5: warning: excess elements in scalar initializer
  138 |     {
      |     ^
cr2hdr.c:138:5: note: (near initialization for 'options')
cr2hdr.c:145:5: warning: braces around scalar initializer
  145 |     {
      |     ^
cr2hdr.c:145:5: note: (near initialization for 'options')
cr2hdr.c:146:9: warning: initialization of 'struct cmd_group *' from incompatible pointer type 'char *' [-Wincompatible-pointer-types]
  146 |         "Chroma smoothing", (struct cmd_option[]) {
      |         ^~~~~~~~~~~~~~~~~~
cr2hdr.c:146:9: note: (near initialization for 'options')
cr2hdr.c:146:29: warning: excess elements in scalar initializer
  146 |         "Chroma smoothing", (struct cmd_option[]) {
      |                             ^
cr2hdr.c:146:29: note: (near initialization for 'options')
cr2hdr.c:145:5: warning: excess elements in scalar initializer
  145 |     {
      |     ^
cr2hdr.c:145:5: note: (near initialization for 'options')
cr2hdr.c:154:5: warning: braces around scalar initializer
  154 |     {
      |     ^
cr2hdr.c:154:5: note: (near initialization for 'options')
cr2hdr.c:155:9: warning: initialization of 'struct cmd_group *' from incompatible pointer type 'char *' [-Wincompatible-pointer-types]
  155 |         "Bad pixel handling", (struct cmd_option[]) {
      |         ^~~~~~~~~~~~~~~~~~~~
cr2hdr.c:155:9: note: (near initialization for 'options')
cr2hdr.c:155:31: warning: excess elements in scalar initializer
  155 |         "Bad pixel handling", (struct cmd_option[]) {
      |                               ^
cr2hdr.c:155:31: note: (near initialization for 'options')
cr2hdr.c:154:5: warning: excess elements in scalar initializer
  154 |     {
      |     ^
cr2hdr.c:154:5: note: (near initialization for 'options')
cr2hdr.c:164:5: warning: braces around scalar initializer
  164 |     {
      |     ^
cr2hdr.c:164:5: note: (near initialization for 'options')
cr2hdr.c:165:9: warning: initialization of 'struct cmd_group *' from incompatible pointer type 'char *' [-Wincompatible-pointer-types]
  165 |         "Highlight/shadow handling", (struct cmd_option[]) {
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~
cr2hdr.c:165:9: note: (near initialization for 'options')
cr2hdr.c:165:38: warning: excess elements in scalar initializer
  165 |         "Highlight/shadow handling", (struct cmd_option[]) {
      |                                      ^
cr2hdr.c:165:38: note: (near initialization for 'options')
cr2hdr.c:164:5: warning: excess elements in scalar initializer
  164 |     {
      |     ^
cr2hdr.c:164:5: note: (near initialization for 'options')
cr2hdr.c:171:5: warning: braces around scalar initializer
  171 |     {
      |     ^
cr2hdr.c:171:5: note: (near initialization for 'options')
cr2hdr.c:172:9: warning: initialization of 'struct cmd_group *' from incompatible pointer type 'char *' [-Wincompatible-pointer-types]
  172 |         "White balance", (struct cmd_option[]) {
      |         ^~~~~~~~~~~~~~~
cr2hdr.c:172:9: note: (near initialization for 'options')
cr2hdr.c:172:26: warning: excess elements in scalar initializer
  172 |         "White balance", (struct cmd_option[]) {
      |                          ^
cr2hdr.c:172:26: note: (near initialization for 'options')
cr2hdr.c:171:5: warning: excess elements in scalar initializer
  171 |     {
      |     ^
cr2hdr.c:171:5: note: (near initialization for 'options')
cr2hdr.c:180:5: warning: braces around scalar initializer
  180 |     {
      |     ^
cr2hdr.c:180:5: note: (near initialization for 'options')
cr2hdr.c:181:9: warning: initialization of 'struct cmd_group *' from incompatible pointer type 'char *' [-Wincompatible-pointer-types]
  181 |         "Other postprocessing steps", (struct cmd_option[]) {
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
cr2hdr.c:181:9: note: (near initialization for 'options')
cr2hdr.c:181:39: warning: excess elements in scalar initializer
  181 |         "Other postprocessing steps", (struct cmd_option[]) {
      |                                       ^
cr2hdr.c:181:39: note: (near initialization for 'options')
cr2hdr.c:180:5: warning: excess elements in scalar initializer
  180 |     {
      |     ^
cr2hdr.c:180:5: note: (near initialization for 'options')
cr2hdr.c:191:5: warning: braces around scalar initializer
  191 |     {
      |     ^
cr2hdr.c:191:5: note: (near initialization for 'options')
cr2hdr.c:192:9: warning: initialization of 'struct cmd_group *' from incompatible pointer type 'char *' [-Wincompatible-pointer-types]
  192 |         "Flicker handling", (struct cmd_option[]) {
      |         ^~~~~~~~~~~~~~~~~~
cr2hdr.c:192:9: note: (near initialization for 'options')
cr2hdr.c:192:29: warning: excess elements in scalar initializer
  192 |         "Flicker handling", (struct cmd_option[]) {
      |                             ^
cr2hdr.c:192:29: note: (near initialization for 'options')
cr2hdr.c:191:5: warning: excess elements in scalar initializer
  191 |     {
      |     ^
cr2hdr.c:191:5: note: (near initialization for 'options')
cr2hdr.c:200:5: warning: braces around scalar initializer
  200 |     {
      |     ^
cr2hdr.c:200:5: note: (near initialization for 'options')
cr2hdr.c:201:9: warning: initialization of 'struct cmd_group *' from incompatible pointer type 'char *' [-Wincompatible-pointer-types]
  201 |         "DNG compression (requires Adobe DNG Converter)", (struct cmd_option[]) {
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cr2hdr.c:201:9: note: (near initialization for 'options')
cr2hdr.c:201:59: warning: excess elements in scalar initializer
  201 |         "DNG compression (requires Adobe DNG Converter)", (struct cmd_option[]) {
      |                                                           ^
cr2hdr.c:201:59: note: (near initialization for 'options')
cr2hdr.c:200:5: warning: excess elements in scalar initializer
  200 |     {
      |     ^
cr2hdr.c:200:5: note: (near initialization for 'options')
cr2hdr.c:207:5: warning: braces around scalar initializer
  207 |     {
      |     ^
cr2hdr.c:207:5: note: (near initialization for 'options')
cr2hdr.c:208:9: warning: initialization of 'struct cmd_group *' from incompatible pointer type 'char *' [-Wincompatible-pointer-types]
  208 |         "Misc settings", (struct cmd_option[]) {
      |         ^~~~~~~~~~~~~~~
cr2hdr.c:208:9: note: (near initialization for 'options')
cr2hdr.c:208:26: warning: excess elements in scalar initializer
  208 |         "Misc settings", (struct cmd_option[]) {
      |                          ^
cr2hdr.c:208:26: note: (near initialization for 'options')
cr2hdr.c:207:5: warning: excess elements in scalar initializer
  207 |     {
      |     ^
cr2hdr.c:207:5: note: (near initialization for 'options')
cr2hdr.c:219:5: warning: braces around scalar initializer
  219 |     {
      |     ^
cr2hdr.c:219:5: note: (near initialization for 'options')
cr2hdr.c:220:9: warning: initialization of 'struct cmd_group *' from incompatible pointer type 'char *' [-Wincompatible-pointer-types]
  220 |         "Troubleshooting options", (struct cmd_option[]) {
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~
cr2hdr.c:220:9: note: (near initialization for 'options')
cr2hdr.c:220:36: warning: excess elements in scalar initializer
  220 |         "Troubleshooting options", (struct cmd_option[]) {
      |                                    ^
cr2hdr.c:220:36: note: (near initialization for 'options')
cr2hdr.c:219:5: warning: excess elements in scalar initializer
  219 |     {
      |     ^
cr2hdr.c:219:5: note: (near initialization for 'options')
cr2hdr.c:241:5: warning: braces around scalar initializer
  241 |     OPTION_GROUP_EOL
      |     ^~~~~~~~~~~~~~~~
cr2hdr.c:241:5: note: (near initialization for 'options')
cr2hdr.c:128:31: warning: excess elements in scalar initializer
  128 | #define OPTION_GROUP_EOL { 0, 0 }
      |                               ^
cr2hdr.c:241:5: note: in expansion of macro 'OPTION_GROUP_EOL'
  241 |     OPTION_GROUP_EOL
      |     ^~~~~~~~~~~~~~~~
cr2hdr.c:128:31: note: (near initialization for 'options')
  128 | #define OPTION_GROUP_EOL { 0, 0 }
      |                               ^
cr2hdr.c:241:5: note: in expansion of macro 'OPTION_GROUP_EOL'
  241 |     OPTION_GROUP_EOL
      |     ^~~~~~~~~~~~~~~~
cr2hdr.c:128:26: warning: excess elements in scalar initializer
  128 | #define OPTION_GROUP_EOL { 0, 0 }
      |                          ^
cr2hdr.c:241:5: note: in expansion of macro 'OPTION_GROUP_EOL'
  241 |     OPTION_GROUP_EOL
      |     ^~~~~~~~~~~~~~~~
cr2hdr.c:128:26: note: (near initialization for 'options')
  128 | #define OPTION_GROUP_EOL { 0, 0 }
      |                          ^
cr2hdr.c:241:5: note: in expansion of macro 'OPTION_GROUP_EOL'
  241 |     OPTION_GROUP_EOL
      |     ^~~~~~~~~~~~~~~~
cr2hdr.c:246:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  246 | {
      | ^
cr2hdr.c:255:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  255 | {
      | ^
cr2hdr.c:288:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  288 | {
      | ^
cr2hdr.c:320:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  320 | {
      | ^
cr2hdr.c:357:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  357 | {
      | ^
cr2hdr.c:374:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  374 | {
      | ^
cr2hdr.c:380:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  380 | {
      | ^
cr2hdr.c:414:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  414 | {
      | ^
cr2hdr.c:448:8: error: parameter 'raw_info' is initialized
  448 | struct raw_info raw_info = {
      |        ^~~~~~~~
cr2hdr.c:457:12: error: storage class specified for parameter 'hdr_check'
  457 | static int hdr_check();
      |            ^~~~~~~~~
cr2hdr.c:458:12: error: storage class specified for parameter 'hdr_interpolate'
  458 | static int hdr_interpolate();
      |            ^~~~~~~~~~~~~~~
cr2hdr.c:459:12: error: storage class specified for parameter 'black_subtract'
  459 | static int black_subtract(int left_margin, int top_margin);
      |            ^~~~~~~~~~~~~~
cr2hdr.c:460:12: error: storage class specified for parameter 'black_subtract_simple'
  460 | static int black_subtract_simple(int left_margin, int top_margin);
      |            ^~~~~~~~~~~~~~~~~~~~~
cr2hdr.c:461:13: error: storage class specified for parameter 'white_detect'
  461 | static void white_detect(int* white_dark, int* white_bright);
      |             ^~~~~~~~~~~~
cr2hdr.c:462:13: error: storage class specified for parameter 'white_balance_gray'
  462 | static void white_balance_gray(float* red_balance, float* blue_balance, int method);
      |             ^~~~~~~~~~~~~~~~~~
cr2hdr.c:465:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  465 | {
      | ^
cr2hdr.c:472:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  472 | {
      | ^
cr2hdr.c:478:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  478 | {
      | ^
cr2hdr.c:485:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  485 | {
      | ^
cr2hdr.c:491:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  491 | {
      | ^
cr2hdr.c:498:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  498 | {
      | ^
cr2hdr.c:503:33: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  503 | int raw_get_pixel(int x, int y) {
      |                                 ^
cr2hdr.c:508:40: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  508 | int raw_get_pixel_14to16(int x, int y) {
      |                                        ^
cr2hdr.c:513:40: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  513 | int raw_get_pixel_14to20(int x, int y) {
      |                                        ^
cr2hdr.c:518:40: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  518 | int raw_get_pixel_20to16(int x, int y) {
      |                                        ^
cr2hdr.c:522:52: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  522 | void raw_set_pixel_20to16(int x, int y, int value) {
      |                                                    ^
cr2hdr.c:526:57: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  526 | void raw_set_pixel_20to16_rand(int x, int y, int value) {
      |                                                         ^
cr2hdr.c:533:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  533 | {
      | ^
cr2hdr.c:545:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  545 | {
      | ^
cr2hdr.c:557:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  557 | {
      | ^
cr2hdr.c:571:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  571 | {
      | ^
cr2hdr.c:920:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  920 | {
      | ^
cr2hdr.c:970:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
  970 | {
      | ^
cr2hdr.c:1174:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
 1174 | {
      | ^
cr2hdr.c:1207:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
 1207 | {
      | ^
cr2hdr.c:1247:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
 1247 | {
      | ^
cr2hdr.c:1286:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
 1286 | {
      | ^
cr2hdr.c:1358:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
 1358 | {
      | ^
cr2hdr.c:1539:12: error: storage class specified for parameter 'mean2'
 1539 | static int mean2(int a, int b, int white, int* err);
      |            ^~~~~
cr2hdr.c:1542:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
 1542 | {
      | ^
cr2hdr.c:1799:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
 1799 | {
      | ^
cr2hdr.c:1815:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
 1815 | {
      | ^
In file included from cr2hdr.c:1831:
chroma_smooth.c:19:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
   19 | {
      | ^
In file included from cr2hdr.c:1835:
chroma_smooth.c:19:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
   19 | {
      | ^
In file included from cr2hdr.c:1839:
chroma_smooth.c:19:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
   19 | {
      | ^
cr2hdr.c:1843:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
 1843 | {
      | ^
cr2hdr.c:1859:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
 1859 | {
      | ^
cr2hdr.c:1869:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
 1869 | {
      | ^
cr2hdr.c:1983:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
 1983 | {
      | ^
cr2hdr.c:2000:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
 2000 | {
      | ^
cr2hdr.c:2008:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
 2008 | {
      | ^
cr2hdr.c:3360:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
 3360 | {
      | ^
cr2hdr.c:3388:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
 3388 | {
      | ^
cr2hdr.c:1539:12: error: declaration for parameter 'mean2' but no such parameter
 1539 | static int mean2(int a, int b, int white, int* err);
      |            ^~~~~
cr2hdr.c:462:13: error: declaration for parameter 'white_balance_gray' but no such parameter
  462 | static void white_balance_gray(float* red_balance, float* blue_balance, int method);
      |             ^~~~~~~~~~~~~~~~~~
cr2hdr.c:461:13: error: declaration for parameter 'white_detect' but no such parameter
  461 | static void white_detect(int* white_dark, int* white_bright);
      |             ^~~~~~~~~~~~
cr2hdr.c:460:12: error: declaration for parameter 'black_subtract_simple' but no such parameter
  460 | static int black_subtract_simple(int left_margin, int top_margin);
      |            ^~~~~~~~~~~~~~~~~~~~~
cr2hdr.c:459:12: error: declaration for parameter 'black_subtract' but no such parameter
  459 | static int black_subtract(int left_margin, int top_margin);
      |            ^~~~~~~~~~~~~~
cr2hdr.c:458:12: error: declaration for parameter 'hdr_interpolate' but no such parameter
  458 | static int hdr_interpolate();
      |            ^~~~~~~~~~~~~~~
cr2hdr.c:457:12: error: declaration for parameter 'hdr_check' but no such parameter
  457 | static int hdr_check();
      |            ^~~~~~~~~
cr2hdr.c:448:17: error: declaration for parameter 'raw_info' but no such parameter
  448 | struct raw_info raw_info = {
      |                 ^~~~~~~~
cr2hdr.c:130:18: error: declaration for parameter 'options' but no such parameter
  130 | struct cmd_group options[] = {
      |                  ^~~~~~~
cr2hdr.c:97:5: error: declaration for parameter 'shortcut_fast' but no such parameter
   97 | int shortcut_fast = 0;
      |     ^~~~~~~~~~~~~
cr2hdr.c:95:5: error: declaration for parameter 'embed_original' but no such parameter
   95 | int embed_original = 0;
      |     ^~~~~~~~~~~~~~
cr2hdr.c:94:5: error: declaration for parameter 'skip_existing' but no such parameter
   94 | int skip_existing = 0;
      |     ^~~~~~~~~~~~~
cr2hdr.c:93:5: error: declaration for parameter 'same_levels' but no such parameter
   93 | int same_levels = 0;
      |     ^~~~~~~~~~~
cr2hdr.c:92:5: error: declaration for parameter 'compress' but no such parameter
   92 | int compress = 0;
      |     ^~~~~~~~
cr2hdr.c:90:5: error: declaration for parameter 'plot_fullres_curve' but no such parameter
   90 | int plot_fullres_curve = 0;
      |     ^~~~~~~~~~~~~~~~~~
cr2hdr.c:89:5: error: declaration for parameter 'plot_mix_curve' but no such parameter
   89 | int plot_mix_curve = 0;
      |     ^~~~~~~~~~~~~~
cr2hdr.c:88:5: error: declaration for parameter 'plot_iso_curve' but no such parameter
   88 | int plot_iso_curve = 0;
      |     ^~~~~~~~~~~~~~
cr2hdr.c:87:5: error: declaration for parameter 'debug_bddb' but no such parameter
   87 | int debug_bddb = 0;
      |     ^~~~~~~~~~
cr2hdr.c:86:5: error: declaration for parameter 'debug_rggb' but no such parameter
   86 | int debug_rggb = 0;
      |     ^~~~~~~~~~
cr2hdr.c:85:5: error: declaration for parameter 'debug_bad_pixels' but no such parameter
   85 | int debug_bad_pixels = 0;
      |     ^~~~~~~~~~~~~~~~
cr2hdr.c:84:5: error: declaration for parameter 'debug_alias' but no such parameter
   84 | int debug_alias = 0;
      |     ^~~~~~~~~~~
cr2hdr.c:83:5: error: declaration for parameter 'debug_edge' but no such parameter
   83 | int debug_edge = 0;
      |     ^~~~~~~~~~
cr2hdr.c:82:5: error: declaration for parameter 'debug_amaze' but no such parameter
   82 | int debug_amaze = 0;
      |     ^~~~~~~~~~~
cr2hdr.c:81:5: error: declaration for parameter 'debug_blend' but no such parameter
   81 | int debug_blend = 0;
      |     ^~~~~~~~~~~
cr2hdr.c:80:5: error: declaration for parameter 'debug_black' but no such parameter
   80 | int debug_black = 0;
      |     ^~~~~~~~~~~
cr2hdr.c:78:5: error: declaration for parameter 'gray_wb' but no such parameter
   78 | int gray_wb = WB_GRAY_MAX;
      |     ^~~~~~~
cr2hdr.c:74:5: error: declaration for parameter 'debug_wb' but no such parameter
   74 | int debug_wb = 0;
      |     ^~~~~~~~
cr2hdr.c:73:7: error: declaration for parameter 'custom_wb' but no such parameter
   73 | float custom_wb[3] = {0, 0, 0};
      |       ^~~~~~~~~
cr2hdr.c:72:5: error: declaration for parameter 'exif_wb' but no such parameter
   72 | int exif_wb = 0;
      |     ^~~~~~~
cr2hdr.c:70:7: error: declaration for parameter 'soft_film_ev' but no such parameter
   70 | float soft_film_ev = 0;
      |       ^~~~~~~~~~~~
cr2hdr.c:69:5: error: declaration for parameter 'use_stripe_fix' but no such parameter
   69 | int use_stripe_fix = 1;
      |     ^~~~~~~~~~~~~~
cr2hdr.c:68:5: error: declaration for parameter 'use_alias_map' but no such parameter
   68 | int use_alias_map = 1;
      |     ^~~~~~~~~~~~~
cr2hdr.c:67:5: error: declaration for parameter 'use_fullres' but no such parameter
   67 | int use_fullres = 1;
      |     ^~~~~~~~~~~
cr2hdr.c:66:5: error: declaration for parameter 'fix_bad_pixels' but no such parameter
   66 | int fix_bad_pixels = 1;
      |     ^~~~~~~~~~~~~~
cr2hdr.c:65:5: error: declaration for parameter 'fix_pink_dots' but no such parameter
   65 | int fix_pink_dots = 0;
      |     ^~~~~~~~~~~~~
cr2hdr.c:64:5: error: declaration for parameter 'chroma_smooth_method' but no such parameter
   64 | int chroma_smooth_method = 2;
      |     ^~~~~~~~~~~~~~~~~~~~
cr2hdr.c:63:5: error: declaration for parameter 'interp_method' but no such parameter
   63 | int interp_method = 0;          /* 0:amaze-edge, 1:mean23 */
      |     ^~~~~~~~~~~~~
cr2hdr.c:3664: error: expected '{' at end of input
cr2hdr.c:3664: warning: control reaches end of non-void function [-Wreturn-type]
In file included from cr2hdr.c:58:
module_strings.h: At top level:
module_strings.h:10:13: warning: '__module_string_e_value' defined but not used [-Wunused-variable]
   10 | static char __module_string_e_value[] MODULE_STRINGS_SECTION = "http://www.magiclantern.fm/forum/index.php?topic=7139.0";
      |             ^~~~~~~~~~~~~~~~~~~~~~~
module_strings.h:9:13: warning: '__module_string_e_name' defined but not used [-Wunused-variable]
    9 | static char __module_string_e_name [] MODULE_STRINGS_SECTION = "Forum";
      |             ^~~~~~~~~~~~~~~~~~~~~~
module_strings.h:8:13: warning: '__module_string_d_value' defined but not used [-Wunused-variable]
    8 | static char __module_string_d_value[] MODULE_STRINGS_SECTION = "Dynamic range improvement by using two ISOs in one picture";
      |             ^~~~~~~~~~~~~~~~~~~~~~~
module_strings.h:7:13: warning: '__module_string_d_name' defined but not used [-Wunused-variable]
    7 | static char __module_string_d_name [] MODULE_STRINGS_SECTION = "Summary";
      |             ^~~~~~~~~~~~~~~~~~~~~~
module_strings.h:6:13: warning: '__module_string_c_value' defined but not used [-Wunused-variable]
    6 | static char __module_string_c_value[] MODULE_STRINGS_SECTION = "GPL";
      |             ^~~~~~~~~~~~~~~~~~~~~~~
module_strings.h:5:13: warning: '__module_string_c_name' defined but not used [-Wunused-variable]
    5 | static char __module_string_c_name [] MODULE_STRINGS_SECTION = "License";
      |             ^~~~~~~~~~~~~~~~~~~~~~
module_strings.h:4:13: warning: '__module_string_b_value' defined but not used [-Wunused-variable]
    4 | static char __module_string_b_value[] MODULE_STRINGS_SECTION = "a1ex";
      |             ^~~~~~~~~~~~~~~~~~~~~~~
module_strings.h:3:13: warning: '__module_string_b_name' defined but not used [-Wunused-variable]
    3 | static char __module_string_b_name [] MODULE_STRINGS_SECTION = "Author";
      |             ^~~~~~~~~~~~~~~~~~~~~~
module_strings.h:2:13: warning: '__module_string_a_value' defined but not used [-Wunused-variable]
    2 | static char __module_string_a_value[] MODULE_STRINGS_SECTION = "Dual ISO";
      |             ^~~~~~~~~~~~~~~~~~~~~~~
module_strings.h:1:13: warning: '__module_string_a_name' defined but not used [-Wunused-variable]
    1 | static char __module_string_a_name [] MODULE_STRINGS_SECTION = "Name";
      |             ^~~~~~~~~~~~~~~~~~~~~~
In file included from cr2hdr.c:57:
../module_strings_wrapper.h:18:20: warning: 'module_get_string' defined but not used [-Wunused-function]
   18 | static const char* module_get_string(module_strpair_t *strings, const char* name)
      |                    ^~~~~~~~~~~~~~~~~
cr2hdr.c:29:12: warning: 'is_bright' defined but not used [-Wunused-variable]
   29 | static int is_bright[4];
      |            ^~~~~~~~~
../../src/chdk-dng.c: In function 'dng_set_camname':
../../src/chdk-dng.c:340:5: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
  340 |     strncpy(cam_name, str, sizeof(cam_name));
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../src/chdk-dng.c: In function 'dng_set_camserial':
../../src/chdk-dng.c:345:5: warning: 'strncpy' specified bound 64 equals destination size [-Wstringop-truncation]
  345 |     strncpy(cam_serial, str, sizeof(cam_serial));
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../src/chdk-dng.c: In function 'dng_set_description':
../../src/chdk-dng.c:350:5: warning: 'strncpy' specified bound 64 equals destination size [-Wstringop-truncation]
  350 |     strncpy(dng_image_desc, str, sizeof(dng_image_desc));
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../src/chdk-dng.c: In function 'dng_set_lensmodel':
../../src/chdk-dng.c:355:5: warning: 'strncpy' specified bound 64 equals destination size [-Wstringop-truncation]
  355 |     strncpy(dng_lens_model, str, sizeof(dng_lens_model));
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../src/chdk-dng.c: In function 'dng_set_datetime':
../../src/chdk-dng.c:405:5: warning: 'strncpy' specified bound 20 equals destination size [-Wstringop-truncation]
  405 |     strncpy(cam_datetime, datetime, sizeof(cam_datetime));
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../src/chdk-dng.c:406:5: warning: 'strncpy' specified bound 4 equals destination size [-Wstringop-truncation]
  406 |     strncpy(cam_subsectime, subsectime, sizeof(cam_subsectime));
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
dcraw-bridge.c:101:3: warning: 'unique' defined but not used [-Wunused-const-variable=]
  101 | } unique[] = {
      |   ^~~~~~
In function 'verify_raw_embedding',
    inlined from 'embed_original_raw' at exiftool-bridge.c:210:10:
exiftool-bridge.c:192:13: warning: 'fclose' called on pointer returned from a mismatched allocation function [-Wmismatched-dealloc]
  192 |     if (fd) fclose(fd);
      |             ^~~~~~~~~~
exiftool-bridge.c:151:10: note: returned from 'popen'
  151 |     fd = popen(exif_cmd, "r");
      |          ^~~~~~~~~~~~~~~~~~~~
exiftool-bridge.c:192:13: warning: 'fclose' called on pointer returned from a mismatched allocation function [-Wmismatched-dealloc]
  192 |     if (fd) fclose(fd);
      |             ^~~~~~~~~~
exiftool-bridge.c:151:10: note: returned from 'popen'
  151 |     fd = popen(exif_cmd, "r");
      |          ^~~~~~~~~~~~~~~~~~~~
exiftool-bridge.c:192:13: warning: 'fclose' called on pointer returned from a mismatched allocation function [-Wmismatched-dealloc]
  192 |     if (fd) fclose(fd);
      |             ^~~~~~~~~~
exiftool-bridge.c:151:10: note: returned from 'popen'
  151 |     fd = popen(exif_cmd, "r");
      |          ^~~~~~~~~~~~~~~~~~~~
exiftool-bridge.c:192:13: warning: 'fclose' called on pointer returned from a mismatched allocation function [-Wmismatched-dealloc]
  192 |     if (fd) fclose(fd);
      |             ^~~~~~~~~~
exiftool-bridge.c:151:10: note: returned from 'popen'
  151 |     fd = popen(exif_cmd, "r");
      |          ^~~~~~~~~~~~~~~~~~~~
exiftool-bridge.c:192:13: warning: 'fclose' called on pointer returned from a mismatched allocation function [-Wmismatched-dealloc]
  192 |     if (fd) fclose(fd);
      |             ^~~~~~~~~~
exiftool-bridge.c:151:10: note: returned from 'popen'
  151 |     fd = popen(exif_cmd, "r");
      |          ^~~~~~~~~~~~~~~~~~~~
exiftool-bridge.c: In function 'dng_restore_metadata':
exiftool-bridge.c:284:60: warning: '%s' directive output may be truncated writing up to 999 bytes into a region of size 984 [-Wformat-truncation=]
  284 |     snprintf(exif_cmd, sizeof(exif_cmd), "exiftool \"-json=%s\" \"%s\" -q -overwrite_original", json_file, dng_file);
      |                                                            ^~                                   ~~~~~~~~~
exiftool-bridge.c:284:5: note: 'snprintf' output 44 or more bytes (assuming 1043) into a destination of size 1000
  284 |     snprintf(exif_cmd, sizeof(exif_cmd), "exiftool \"-json=%s\" \"%s\" -q -overwrite_original", json_file, dng_file);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
adobedng-bridge.c: In function 'dng_compress':
adobedng-bridge.c:111:83: warning: '%s' directive output may be truncated writing up to 999 bytes into a region of size between 975 and 981 [-Wformat-truncation=]
  111 |     snprintf(compress_cmd, sizeof(compress_cmd), "%s\"%s\" -dng1.4 %s -o \"%s\" \"%s\"", start, adobe_dng, lossy ? "-lossy" : "", src_filename, tmp);
      |                                                                                   ^~                                                            ~~~
adobedng-bridge.c:111:5: note: 'snprintf' output 21 or more bytes (assuming 1026) into a destination of size 1000
  111 |     snprintf(compress_cmd, sizeof(compress_cmd), "%s\"%s\" -dng1.4 %s -o \"%s\" \"%s\"", start, adobe_dng, lossy ? "-lossy" : "", src_filename, tmp);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
make: *** [Makefile.cr2hdr:19: cr2hdr] Error 1


Ah, good, we have found the real error:

Code Select Expand

modules/dual_iso/../html2text.py:630: SyntaxWarning: invalid escape sequence '\s'
  data = re.sub('\s+', ' ', data)

You are using a version of Python too modern for the build system.  A change in 3.12 has introduced this error:
https://docs.python.org/3/whatsnew/3.12.html

Code Select Expand

A backslash-character pair that is not a valid escape sequence now generates a SyntaxWarning,
instead of DeprecationWarning. For example, re.compile("\d+\.\d+") now emits a SyntaxWarning
 ("\d" is an invalid escape sequence, use raw strings for regular expression:
 re.compile(r"\d+\.\d+")). In a future Python version, SyntaxError will eventually be raised,
 instead of SyntaxWarning. (Contributed by Victor Stinner in gh-98401.)

Using a bleeding edge distro for doing builds may not be a good idea, you'll hit these kinds of problems fairly frequently.

Fixed: https://github.com/reticulatedpines/magiclantern_simplified/commit/09d3fddeb7f462d1dd61098e55abc1b81dd6433d

Didn't go well at all. Is there a binary of cr2hdr that works? Else I have to create a ubuntu vm to build the binary.

Which version of ubuntu is ideal to use? (\22.04? 16.04? 64-bit? 32-bit?

Thanks!

IIRC, I got that message, and I resolved it by switching to an older version of Linux (Ubuntu).

Edit: Here's the thread with my issue: https://www.magiclantern.fm/forum/index.php?topic=20214.msg245901#msg245901

@Frank7d Thanks for the pointer. But I do not plan to go back to older versions of Ubuntu.

I use a rolling release distro, voidlinux which has got the latest python3 and therefore following @names_are_hard's advice.

Cheers,
/z

The only reason I've ever seen before for that error is missing rst2html from path, so I may not be able to help you much further.

When you're in the dual_iso directory, what's the output from this command?

Code Select Expand

$ python3 ../readme2modulestrings.py > module_strings.h


Code Select Expand

$ python3 ../readme2modulestrings.py > module_strings.h
cat README.rst | grep -v -E "^:([^:])+:.+$" | rst2html | python3 ../html2text.py -b 70$//"sed "s/
# Dual ISO

Increases dynamic range by sampling the sensor at two different
ISOs, switching ISO for every other line pair. This trick cleans up
shadow noise, resulting in a dynamic range improvement of
around 3 stops, at the cost of reduced vertical resolution,
aliasing and moire.

Works for both raw photos (CR2) and raw videos (DNG). You need
to postprocess these files with a tool called **cr2hdr**.

After postprocessing, you will get a DNG that looks like a dark ISO
100 shot, but you can bring the exposure back up and be
delighted by how little noise is present in those recovered
shadows.

# Quick start

 *  Start at ISO 100 in Canon menu
 *  Expose to the right by changing shutter and aperture
 *  If the image is still dark, enable dual ISO
 *  Adjust recovery ISO: higher values = cleaner shadows, but more
    artifacts
 *  Try not to go past ISO 1600; you will not see any major
    improvements, but you will get more interpolation artifacts and
    hot pixels.

# Tips and tricks

 *  Do not use dual ISO for regular scenes that don't require a very
    high dynamic range.
 *  Raw zebras are aware of dual ISO: weak zebras are displayed
    where only the high ISO is overexposed, strong (solid) zebras are
    displayed where both ISOs are overexposed.
 *  Raw histogram will display only the low-ISO half of the image
    (since the high-ISO data is used for cleaning up shadow noise).
 *  For optimal exposure (minimal noise without clipped highlights),
    try both dual ISO and ETTR.
 *  Do not be afraid of less aggressive settings like 100/400. They
    are almost as good as 100/1600 regarding shadow noise, but
    with much less aliasing artifacts.
 *  Be careful with long exposures, you may get lots of hot pixels.


/Downloads/gitrepos/magiclantern_simplified/modules/dual_iso/../html2text.py:630: SyntaxWarni
ng: invalid escape sequence '\s'
  data = re.sub('\s+', ' ', data)

(<class 'SystemExit'>, SystemExit(1), <traceback object at 0x7f3d6eb82140>)



Do you have rst2html in path?

Yes, I do:

Code Select Expand

$ which rst2html
/usr/bin/rst2html

You will get an error around missing module_strings.h if you don't have rst2html in path.  On a debian based distro you can install this via:

Code Select Expand

apt install python3-docutils


Thanks for prompt response.

I have the python3-docutils installed, but still get the error as follows:

Code Select Expand

cr2hdr.c:58:10: fatal error: module_strings.h: No such file or directory
   58 | #include "module_strings.h"


@Zenny, If you want to avoid having a darker image than the camera can handle cleanly, you can use the false colors to help expose properly. This is not a Sony which can record cleanly at ISO 800! Have a look at this image (Click for the animation) The whole white portion was exposed so that it showed the corresponding False Color.

You see that at ISO 100, you can expose above Dark Grey (Charcoal) and have a relatively clean image, but as you bump up ISO, you must expose more to have a noise-free image.
At ISO 200, the noise starts being quite noticeable below Orange and at ISO 400, you need to be above Orange.
Looking at the images you posted, my guess is that most of the frame was exposed around the Cyan region, which is quite noisy.
To get the cleanest image possible, most of the frame should be exposed above the point where noise starts becoming noticeable.

Also, if you want small details like the tree branches in your images to come out sharp, you need to avoid using the 1x3 modes, as those make small details "Mushy".

@iaburn's advice is one to follow. If you need more light, you can use a tripod and use a slower shutter speed, so that you can keep the lenses at smaller apertures for more sharpness.

I did 2 posts on false colors / exposure vs noise here if you're interested:
https://www.magiclantern.fm/forum/index.php?msg=245760
https://www.magiclantern.fm/forum/index.php?msg=245761

@gabriielangel This is extremely helpful input. Very enlightening posts on false colors and exposures. 1x1 does not give 4.8K I guess.

Usually I do not go for beyond ISO400 except using dual ISO of ISO100/800. My shutter speed is usually 1/50 for video and variable for photography. I usually try to achieve deep focus and set my aperture to f/8-11 and use a wide lens 10mm to 28mm max, fyi.

Cheers,
/z

Don't be surprised if someone tells you how to find MLVApp for Linux, if you say you can't find that

Assuming you're using a modern linux, to get cr2hdr I would recommend you do this:

Code Select Expand

git clone https://github.com/reticulatedpines/magiclantern_simplified
cd magiclantern_simplified/modules/dual_iso
make cr2hdr


Thanks for the input. I tried to do accordingly, but I am not aware of the list of libraries (32-bit?) that fails the compilation, particularly module_strings.h is not found anywhere in any library!

I appreciate if you share particular libraries required to compile and build.

Cheers,
/z

https://mlv.app first link.

Thanks!

If I am not wrong, MLV-app is to process only the MLV videos, right? I trying to edit raw images with .CR2 extensions, pictured in dual iso mode with horizontal lines.

Hi,

I could not find MLV-app like utility for editing images taken with dual iso feature for Linux. Please correct me if I have missed something.

So I just pulled @Danne's repo from https://bitbucket.org/Dannephoto/magiclantern_hg_02.git in order to compile cr2hdr in order to process the images captured with dual iso feature, but I could not figure out exactly how to compile in Linux?

It would be nice if @Danne or @Bilal explain a bit about the compilation process because I could not figure out anything specific to EOS-M and particularly to compile and build cr2hdr binary.

Thanks and cheers,

/z

It works. You have to change to 4:3 in RAW video section and scroll down resolution until you get to 4:3. Preview will still be full 16:9 though.
Higher 4:3 in 1x3 fails over here. Fps is already at 22fps in this preset and it will not exceed this with the height. At 1538.

Thanks @Danne for your input. I shall try to go with your recommendation. Cheers,

I'm just commenting on the 1x1 images, to focus on sharpness.
Both samples (on your second post you swap 1x1 and 1x3) are as sharp as your lens is.
What I notice is that you didn't fix Focus Pixels and that all your samples are too dark, so there will be a lot of color noise.
If you want a moody look but not noisy, expose brighter and turn exposure down in post. Use the histogram to help you with exposure.
You can also apply the chroma noise removal in MLVApp.

Thank you for your extremely useful comment, @iaburn. I shall try accordingly and post back here.

On my way right now so I have to keep it short.
Let me put it this way: you are using the word "adequate" and you are using it wrong.

Thanks for your time.

Do you mean that one ought to have a flood of light? Please find attached in daylight cloudy day (in photography a f4 or f5.6 would be adequate with ISO100 film. The shots below are exported directly from the recorded video in 1x1 and 1x3 mode ISO100 respectively.

1x1 4.2k 4:3 ISO100 F2.6
https://ibb.co/q0dg2bG


1x3 4.2k 2:35:1 ISO100 F2.6
https://ibb.co/CPDYNzT

Some additional images with Canon EFM 15-45mm focused to infinity:

1x3
https://ibb.co/Qc9Vt5L
https://ibb.co/Sr51yC2

1x1
https://ibb.co/8718YXP
https://ibb.co/TT02028

I am relying both on the focus peak information, but for such a wide angle lens, I don't think something like 50m away may not need to focus on.

Cheers,

Thanks again for your inputs.Cheers,

Thanks to @Walter Schulz, @iaburn and @Frank7D , here comes the images which was filmed with adequate light source with two different lenses, Canon EFM 15-45 and a Meyer Optik 28mm vintage lens with M42 adapter with different settings (1x1 crop and 1x3). All of the pictures below are directly exported from the MLV-app (Ctrl+Shift+E) to png without any modifications of any kind in the MLV-app, fyi.

1x1 4.2K Canon EFM 15-45mm ISO200
https://ibb.co/kxn54CP

1x3 4.2K Canon EFM 15-45mm ISO200 Danne's settings
https://ibb.co/Wt6QgST

1x3 5.2K Canon EFM 15-45mm ISO200
https://ibb.co/3yvqBzH

1x3 5.2K Meyer Optik 28mm ISO200 M42-EOSM adapter
https://ibb.co/zQctgx8

Thus, it renders a lot of noise and grains in all modes. Any input appreciated!

Fyi, @Frank7D and @iaburn, I am new to ML, but has been into manual photography and videography since the last century. So it does not seem like a focus issue, I guess as I also use the Focus Peak of ML.

Thanks and Cheers,
/z

Hi,

I am using latest crop_mood build from Danne. I also use fast lens with minimum f1.4, but both in 4.2-4.8 or in 5.2K mode in 14bit with AR of 16:9 or 2:35:1 respectively. I do not use use ISO greater than 400 manual, but use 100-800 for dual iso. Yet both video and pictures are full of noise and grains, and never in focus though focus peaking was right. I tried with both Canon EF-M lenses, EF lenses with the EF-EOSM adapter, M42 lenses with FOTGA M42-EOSM adapter as well as dearly tilt-shift M42-EOSM adapter. Infinity focus remained an issue. Fyi, I am following the recommended configuration @david khoirul and @bilal, yet no go. Maybe I did something wrong. Any inputs appreciated.

Cheers,
/z

Manual page 283: C.Fn IV, 7: Release shutter w/o lens

Thanks for the pointer, your inputs are always as technically-precise as that of Danne and Bilal. Cheers and good night.

Hi, thanks. I think there is a setting on the EOS M to allow recording without lens, which is necessary to mount lenses without electronic contacts. Try that if you hadn't already.
At least you should see light, no matter which adapter you are using.

Most c-mount lenses will not cover the entire sensor, that's why the 1x1 modes are so useful, they only use a small part of the sensor, so the lens protection covers all the area in use.


With this 16mm you will get an image like looking through a tube on 3x3 1080p for example.

There are many different c-mount lenses and it's hard to tell how big the projection circle will be, so I just buy the cheapest ones so I don't feel bad if they don't perform too good

Thanks for explanation. I have a 35mm f1.6 CCTV lens. When I used 1x1 crop, I get just blur blob like bokeh on the screen. Would you mind shariung your configs while using 16mm C-mount lens to film such a gorgeous 4:3 video? Thanks

Will test later, thanks!!

Another 1620p sample, this time with a tiny Cosmicar/Pentax 16mm f1.4 lens (the one on this post)

Wow that is really nice. Thanks for posting. Does this 16mm lens causes vignetting? I have C-EOSM adapter, but mounting a C-lens does not show up anything. Maybe wrong adapter from Amazon! Which adapter did you use?

Screen recording please of your workflow. Custom modes are not logical in a sense but not super hard to create either.

@Danne, Thanks for asking. I am just thinking of recording some videos by assigning custom modes as follows:

1. CM5- 5.2K/AR2:35:1/14bit/Kill Global Draw ON/Focus Peaking ON/Dual ISO ON among others.
2. CM4 - The default mode that is automagically assigned (
3. CM3- 4.2K/AR4:3/14bit/Dual ISO ON (I want to get 4:3AR output post-processing in MLV-app, but I could not figure out exactly whether to assign in the `Crop Mood` submenu or RAW video submenu?)
4. CM2 - 48fps 1080p
5. CM1- Changeable to different requirement than above four.

Maybe this explains what I am trying to achieve. Actually, I am trying to film a short with this, though ML is pretty new to me.

Just updated to your 2024-02-19 build.  Thanks for the marvelous work.

Cheers,
/z

Works over here. Could you download latest build and see to it that ML folder is deleted when installing again.

Yes, 2024-02-16 build works, but reverts back to the default 4.3K as you seem to have customized no matter how many times I reconfigure and assign to a new preset!

On the other hand, this new build fails to show whether the selected mode of resolution and aspect ration can continue recording (green) unlike the 2024-02-12 build of yours!

Thanks!