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Take and Scrape Your Own Screenshots

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retroarchscreenshotscrapesselphruncommand
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  • M
    meleu @herb_fargus
    last edited by meleu 20 Aug 2016, 14:27

    @herb_fargus
    I'll come back to this topic soon (I'm very sleepy after a 12 hours turn). But first I would like to share some tips/thoughts with you:

    • the scraper command you use in the first post can be faster if you use the options -skip_check=true and -use_gdb=false.

    • I don't like to use a subdir for images in the roms directory. You can use the -image_path="path/to/screenshots" to make the scraper get the images from another place.

    • I really would like to keep my previous gamelist.xml and only change the entry for the game that we recently took the screenshot. I think the way to achieve it is the -append=true option. But we need some XML parsing trick to exclude the game entry from gamelist.xml before call the scraper in order to make it consider the game as a new entry.

    I think we are on the right way...

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    H 1 Reply Last reply 20 Aug 2016, 16:15 Reply Quote 0
    • H
      herb_fargus administrators @meleu
      last edited by herb_fargus 20 Aug 2016, 16:15

      @meleu those are good tips to keep in mind. I suppose that we could set the screenshot directory to just one screenshot directory (perhaps even just leave the default) and then use sselphs scraper to point to that, eliminates another config step but I like the idea of having all the images and gamelists in each rom folder because you only have to scrape once and then you can just backup/copy the roms folder complete with images etc with no need to scrape again.

      also if you use the -skip_check=true and -use_gdb=false would that not eliminate the metadata for the detailed view so you only end up having an image?

      I guess we'd have to get feedback to see what people prefer

      If you read the documentation it will answer 99% of your questions: https://retropie.org.uk/docs/

      Also if you want a solution to your problems read this first: https://retropie.org.uk/forum/topic/3/read-this-first

      1 Reply Last reply Reply Quote 0
      • H
        herb_fargus administrators @hiulit
        last edited by 20 Aug 2016, 17:13

        @hiulit I've created a wiki page for it with the latest working code. See first post for link

        If you read the documentation it will answer 99% of your questions: https://retropie.org.uk/docs/

        Also if you want a solution to your problems read this first: https://retropie.org.uk/forum/topic/3/read-this-first

        H M 2 Replies Last reply 20 Aug 2016, 17:19 Reply Quote 1
        • H
          hiulit @herb_fargus
          last edited by 20 Aug 2016, 17:19

          @herb_fargus nice! Thanks!

          My little contributions to the RetroPie project:

          • Shell-Script-Boilerplate
          • Fun-Facts-Splashscreens
          • Limit-Last-Played-Games
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          • M
            meleu @herb_fargus
            last edited by meleu 20 Aug 2016, 19:37

            @herb_fargus
            [EDIT: I've edited the wiki including those two options for a faster scraper execution. I intentionally didn't edit the runcommand-onstart.sh to let it as you prefer.]

            Some points on the wiki runcommand-onstart.sh:

            1. You can set the iniConfig just once and then pass the file to the iniSet in the 3rd argument.

            2. the function make_screenshot_dir can be replaced by mkdir -p "$imgdir" (the -p option means "no error if existing, make parent directories as needed").

            3. There is no need to explicitly call retroarchIncludeToEnd, since it is automatically executed when editing any file with a name that ends with "retroarch.cfg" (inifuncs feature).

            The runcommand-onstart.sh can be simplified to this:

            #!/usr/bin/env bash
            system="$1"
            imgdir="$HOME/RetroPie/roms/$system/images"
            configdir="/opt/retropie/configs"
            mainretroarch="$configdir/all/retroarch.cfg"
            systemretroarch="$configdir/$system/retroarch.cfg"
            source "/opt/retropie/lib/inifuncs.sh"
            iniConfig " = " '"'
            # If there is no auto screenshot setting in the main retroarch.cfg add it
            if ! grep -q "auto_screenshot_filename" "$mainretroarch"; then
            iniSet "auto_screenshot_filename" "false" "$mainretroarch"
            fi
            mkdir -p "$imgdir"
            # If there is no system based screenshot directory defined then define it in the system based retroarch.cfg
            if ! grep -q "screenshot_directory" $systemretroarch; then
            iniSet "screenshot_directory" "$imgdir" "$systemretroarch"
            fi
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            H 1 Reply Last reply 20 Aug 2016, 21:08 Reply Quote 1
            • H
              herb_fargus administrators @meleu
              last edited by 20 Aug 2016, 21:08

              @meleu you still didn't address:

              also if you use the -skip_check=true and -use_gdb=false would that not eliminate the metadata for the detailed view so you only end up having an image?

              If you read the documentation it will answer 99% of your questions: https://retropie.org.uk/docs/

              Also if you want a solution to your problems read this first: https://retropie.org.uk/forum/topic/3/read-this-first

              M 1 Reply Last reply 20 Aug 2016, 21:28 Reply Quote 0
              • M
                meleu @herb_fargus
                last edited by 20 Aug 2016, 21:28

                @herb_fargus I was so focused on the images thing and didn't give a proper attention to this important detail. Sorry.

                Re-edited the wiki excluding these options.

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                H 2 Replies Last reply 20 Aug 2016, 21:37 Reply Quote 0
                • H
                  herb_fargus administrators @meleu
                  last edited by herb_fargus 20 Aug 2016, 21:37

                  @meleu I personally don't care about metadata but I know lots of others do.

                  Once gridview is incorporated I think those extra flags will be more useful (though I presume that it may be possible to theme metadata in with that at some point) might be a cool design to have a box on the side that changes with each game. I'll have to play with that in the future.

                  Also have you tested your code changes ;)

                  If you read the documentation it will answer 99% of your questions: https://retropie.org.uk/docs/

                  Also if you want a solution to your problems read this first: https://retropie.org.uk/forum/topic/3/read-this-first

                  M 1 Reply Last reply 21 Aug 2016, 00:16 Reply Quote 0
                  • H
                    herb_fargus administrators @meleu
                    last edited by 21 Aug 2016, 00:05

                    @meleu I tested your code changes and they work :) thanks for the refactor. I've updated the wiki page accordingly.

                    If you read the documentation it will answer 99% of your questions: https://retropie.org.uk/docs/

                    Also if you want a solution to your problems read this first: https://retropie.org.uk/forum/topic/3/read-this-first

                    M 2 Replies Last reply 21 Aug 2016, 11:30 Reply Quote 1
                    • M
                      meleu @herb_fargus
                      last edited by 21 Aug 2016, 00:16

                      @herb_fargus said in Take and Scrape Your Own Screenshots:

                      Also have you tested your code changes ;)

                      hahaha... after one acquires a bad reputation it's hard to miss it...

                      yes! I tested my code! :D
                      I'm glad it works for you too.

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                      • M
                        meleu
                        last edited by meleu 21 Aug 2016, 00:30

                        @herb_fargus I'm currently working on a simpler way to achieve what we want here (take and scrape your own screenshots). No need for those runcommand-on{start,end}.sh sselph scraper options complexity, just take your screenshots as you like and then execute a script to put the most recent screenshot as the scrape image. Hope to show something useful soon...

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                        • M
                          meleu @herb_fargus
                          last edited by meleu 9 Feb 2016, 04:58 21 Aug 2016, 11:30

                          @herb_fargus
                          Well...
                          After reading this series of brainstorming posts, reading the gamelist.xml doc, and taking a look at some gamelist.xml files, I found a simpler solution for what we want.

                          Let me talk about another method...

                          user point of view

                          Take screenshots of a game and set the most recent screenshot as the emulationstation image for this game.

                          prerequisites

                          • auto_screenshot_filename = false in global retroarch.cfg. It will be the flag to turn on/off the "scrape your own screenshots" functionality (it can be confusing, because "false" means "on", we can think about another flag later.).
                          • screenshot_directory must be set to some directory in retroarch.cfg (system specific or global, system specific takes precedence).
                          • it was made to work after a scraping (the $HOME/.emulationstation/gamelists/$system/gamelist.xml or /etc/emulationstation/gamelists/$system/gamelist.xml files must exist).

                          how it works

                          Summing up: put the game screenshot full path file name in the respective <image> entry, replacing the old content. If the game isn't present in gamelist.xml, create an entry for it.

                          Let's take a look at the runcommand-onend.sh:
                          [EDIT: the script below is just a "proof of concept". A robust and updated version is in https://raw.githubusercontent.com/meleu/share/master/screeper.sh]

                          #!/bin/bash
                          echo "--- start of $(basename $0) ---" >&2
                          readonly system="$1"
                          readonly full_path_rom="$3"
                          readonly retroarch_cfg="/opt/retropie/configs/all/retroarch.cfg"
                          readonly system_ra_cfg="/opt/retropie/configs/$system/retroarch.cfg"
                          readonly gamelist="$HOME/RetroPie/roms/$system/gamelist.xml"
                          readonly gamelist1="$HOME/.emulationstation/gamelists/$system/gamelist.xml"
                          readonly gamelist2="/etc/emulationstation/gamelists/$system/gamelist.xml"
                          rom="${full_path_rom##*/}"
                          rom="${rom%.*}"
                          scrap_img="$rom.png"
                          source "/opt/retropie/lib/inifuncs.sh"
                          iniConfig ' = ' '"'
                          # only go on if the auto_screenshot_filename is false
                          iniGet "auto_screenshot_filename" "$retroarch_cfg"
                          if ! [[ "$ini_value" =~ ^(false|0)$ ]]; then
                          exit 0
                          fi
                          # getting the screenshots directory
                          # try system specific retroarch.cfg, if not found try the global one
                          iniGet "screenshot_directory" "$system_ra_cfg"
                          screenshot_dir="$ini_value"
                          if [[ -z "$screenshot_dir" ]]; then
                          iniGet "screenshot_directory" "$retroarch_cfg"
                          screenshot_dir="$ini_value"
                          if [[ -z "$screenshot_dir" ]]; then
                          echo "You must set a path for 'screenshot_directory' in \"retroarch.cfg\"." >&2
                          echo "Aborting..." >&2
                          exit 1
                          fi
                          fi
                          # if there is no screenshot named "ROM Name.png", we have nothing to do here
                          if ! [[ -f "$screenshot_dir/$scrap_img" ]]; then
                          echo "There is no screenshot for \"$rom\". Exiting..." >&2
                          exit 0
                          fi
                          # if there is no "customized gamelist.xml", try the user specific,
                          # if it fails, get the global one
                          if ! [[ -f "$gamelist" ]]; then
                          echo "Copying \"$gamelist1\" to \"$gamelist\"." >&2
                          if ! cp "$gamelist1" "$gamelist" 2>/dev/null; then
                          echo "Failed to copy \"$gamelist1\"." >&2
                          echo "Copying \"$gamelist2\" to \"$gamelist\"." >&2
                          if ! cp "$gamelist2" "$gamelist" 2>/dev/null; then
                          echo "Failed to copy \"$gamelist2\"." >&2
                          echo "Aborting..." >&2
                          exit 1
                          fi
                          fi
                          fi
                          # the <image> entry MUST be on a single line and match the pattern:
                          # anything followed by rom name followed or not by "-image" followed by dot followed by 3 chars
                          old_img_regex="<image>.*$rom\(-image\)\?\....</image>"
                          new_img_regex="<image>$screenshot_dir/$scrap_img</image>"
                          if grep -q "$old_img_regex" "$gamelist"; then
                          sed -i "s|$old_img_regex|$new_img_regex|" "$gamelist"
                          else # oh! there is no entry for this game yet!
                          gamelist_entry="\\
                          <game id=\"\" source=\"\">\\
                          <path>$full_path_rom</path> \\
                          <name>$rom</name> \\
                          <desc></desc> \\
                          $new_img_regex \\
                          <releasedate></releasedate> \\
                          <developer></developer> \\
                          <publisher></publisher> \\
                          <genre></genre> \\
                          </game>"
                          sed -i "/<\/gameList>/ s|.*|${gamelist_entry}\n&|" "$gamelist"
                          fi
                          echo "--- end of $(basename $0) ---" >&2

                          limitations

                          Currently this is a kind of "proof of concept". The limitations below can be overcome if we feel that this is the way to achieve what we want.
                          [The updated and more robust version of the script is available here: https://raw.githubusercontent.com/meleu/share/master/screeper.sh]

                          • This method only changes the <image> entry of a particular game. So, if this game is NOT present in the gamelist.xml, nothing happens. [EDIT: if the game is not present in gamelist.xml, the script creates an entry for it]
                          • The <image></image> entry in the gamelist.xml must be in a single line (it seems to be the default, so probably we don't have to worry about it).
                          • The original image filename in the <image> entry must be named as ROM Name.ext or ROM Name-image.ext (ext can be any 3 characters, eg: png, bmp, jpg, etc), otherwise the sed command won't replace it. [EDIT: it wasn't a problem in my first tests here]
                          • After a succeeded image changing, the respective <image> entry will have a full path to the image. It can be an inconvenience if the user wants to copy the gamelist.xml between computers (IMHO it's not so important. Besides that it probably won't be a problem to those who use the pi user).

                          "I didn't like how it looks! I want my old scrapes back!"

                          Change the auto_screenshot_filename to true in /opt/retropie/configs/all/retroarch.cfg and then delete the system specific gamelist.xml that is at the system roms directory (example for SNES: ~/RetroPie/roms/snes/gamelist.xml). Now emulationstation will get the gamelist from $HOME/.emulationstation/gamelists/$system/gamelist.xml.

                          Restart emulationstation and you'll get back your old scrapes.

                          where to go from here?

                          After learn how to use the scraper with -append=true option (no success on my first tests) and if it proves to be good enough, we can evolve it to what I think would be a cool feature: scrape with screenshots only the games that aren't scraped. In other words: if the user is playing a non-scraped game and takes screenshots, then scrape this game with the most recent taken screenshot.

                          I think its done! :D
                          Maybe some minor bug fixes (if we found some) and minor improvements.

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                          • M
                            meleu
                            last edited by meleu 9 Feb 2016, 04:54 21 Aug 2016, 11:34

                            Yes, I tested the code. ;-)

                            If you want to avoid the copy'n'paste process you can get it with this command:

                            wget "https://raw.githubusercontent.com/meleu/share/master/screeper.sh"
                            

                            And then rename it to runcommand-onend.sh.

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                            • M
                              meleu @herb_fargus
                              last edited by meleu 21 Aug 2016, 14:45

                              @herb_fargus
                              Man! I've updated the script to create an entry for the games that aren't present in gamelist.xml. I updated my big post above including the changes (yes! I tested my code!).

                              You can get the updated code at github:

                              wget "https://raw.githubusercontent.com/meleu/src/master/screeper.sh"
                              

                              Dude, it was really fun to accomplish this task. Thanks for this challenge!

                              When you have time to test it (and agree with my method) maybe we can edit the wiki to use this method. It's up to you. (If you agree I can edit it next night).

                              Cheers!

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                              H 1 Reply Last reply 21 Aug 2016, 15:25 Reply Quote 0
                              • H
                                herb_fargus administrators @meleu
                                last edited by 21 Aug 2016, 15:25

                                @meleu so where does metadata fit in with this ;)

                                If you read the documentation it will answer 99% of your questions: https://retropie.org.uk/docs/

                                Also if you want a solution to your problems read this first: https://retropie.org.uk/forum/topic/3/read-this-first

                                M 1 Reply Last reply 21 Aug 2016, 15:42 Reply Quote 0
                                • M
                                  meleu @herb_fargus
                                  last edited by meleu 21 Aug 2016, 15:42

                                  @herb_fargus
                                  one of the prerequisites is:

                                  • it was made to work after a scraping (the $HOME/.emulationstation/gamelists/$system/gamelist.xml or /etc/emulationstation/gamelists/$system/gamelist.xml files must exist).

                                  I think it's better to leave the scraping up to the user, because it is very time consuming to be in runcommand-onend.sh.

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                                  H 1 Reply Last reply 21 Aug 2016, 15:46 Reply Quote 0
                                  • H
                                    herb_fargus administrators @meleu
                                    last edited by 21 Aug 2016, 15:46

                                    @meleu that is true. and the download-images-false flag with sselphs scraper can pull the metadata without the images- or I guess they may have to scrape metadata first unless its appended.

                                    If you read the documentation it will answer 99% of your questions: https://retropie.org.uk/docs/

                                    Also if you want a solution to your problems read this first: https://retropie.org.uk/forum/topic/3/read-this-first

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                                    • S
                                      sselph
                                      last edited by 21 Aug 2016, 18:37

                                      I think the code as is may have a bug. I haven't run it but just reading it over and following the logic.
                                      ROMs named:
                                      Advanced Dungeons & Dragons - Eye of the Beholder (USA).smc
                                      Zool - Ninja of the 'Nth' Dimension (USA).smc
                                      Will scrape to something like:
                                      <image>./images/Zool - Ninja of the &#39;Nth&#39; Dimension (USA).png</image>
                                      so the regex used to find and replace the old entry won't work and a new entry will be appended.

                                      That brings up a second bug with the appending code. If a rom is named with a quote in it will probably parse okay but an ampersand would be considered invalid and skipped:
                                      <path>./Advanced Dungeons & Dragons - Eye of the Beholder (USA).smc</path>
                                      instead of
                                      <path>./Advanced Dungeons &amp; Dragons - Eye of the Beholder (USA).smc</path>

                                      If the file named happened to have a < or > things would be very bad
                                      test <US>.bin
                                      would convert to:
                                      <path>test <US>.bin</path>
                                      and the extra <US> would throw off the parser.
                                      it should be something like
                                      <path>test &lt;US&gt;.bin</path>

                                      Using something like passing the file name through
                                      sed "s/\&/\&amp;/g;s/>/\&gt;/g;s/</\&lt;/g;s/'/\&apos;/g"
                                      might work to convert things to a similar the escaped XML.

                                      Auto-scraper: https://github.com/sselph/scraper
                                      Donate to Extra-Life 2018 and help save lives: https://goo.gl/diu5oU

                                      1 Reply Last reply Reply Quote 1
                                      • S
                                        sselph
                                        last edited by 21 Aug 2016, 18:52

                                        Something else that may be an issue, but I'm not 100% certain, is having files with names like test [!].bin this seems like it would create a grep statement like grep "test [!].bin" which means the [ and ] wouldn't be taken literally. Also the ! probably causes issues.

                                        Auto-scraper: https://github.com/sselph/scraper
                                        Donate to Extra-Life 2018 and help save lives: https://goo.gl/diu5oU

                                        M 2 Replies Last reply 21 Aug 2016, 20:51 Reply Quote 1
                                        • M
                                          meleu @sselph
                                          last edited by meleu 21 Aug 2016, 20:51

                                          @sselph good points! I'll fix it!
                                          Thanks!

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