Rockbox

There is at least one way of launching a plugin from an already running plugin,
e.g. by using the Shortcuts menu to navigate to a folder and then choosing
“Open With” in the context menu, which can crash the player.

There are variants of the 5G Video iPod with 32 MB and 64 MB RAM. Rockbox makes one build, with memory size set to 64 MB. This is a problem for SDL game overlays, because their location in memory depends on memory size. They’re built for 64 MB memory, and Rockbox will refuse to load them into non-existent memory on an iPod with 32 MB memory. The workaround is to set the memory size to 32 MB and rebuild them. In the build directory, after a build is complete, you can do:

sed -i s/MEMORYSIZE=64/MEMORYSIZE=32/ Makefile
rm apps/plugins/overlay_ref.link
make

Verify the result via:
grep PLUGIN_RAM apps/plugins/sdl/*.refmap

You should see:
PLUGIN_RAM 0×0000000000000000 0x0000000001e80000
and not:
PLUGIN_RAM 0×0000000000000000 0x0000000003e80000

After this, Wolf3D, Duke3D and Quake all worked for me, though I had a data abort when exiting Quake.

This is on Rockbox 3.15. I’ve also downloaded rockbox-ipodvideo-20221120.zip and confirmed the problem exists there, but II don’t have the new toolchain, so I didn’t experiment with that build.

I noticed that some tracks converted to Vorbis, OPUS and AAC will become distorted at higher volume levels, especially when used with compressor and makeup gain (default compressor settings with Threshold -24 dB).

I was trying my best to make reproduction as easy as possible, so created some audio samples that are constantly problematic on my Sandisk Sansa Clip+ using Rockbox 3.15. The samples contain a 200 Hz sine wave every half a second and silence at every other half, each at -1 dB level. Listen to attached files starting with “200hz”.

1. Copy all samples to the player
2. Go to Sound Settings → Compressor → Threshold and set it to a very low value (-24 dB is perfect).
3. Start playing back the samples.
4. You’ll notice the distorton, the same kind at Vorbis and OPUS but a slightly different at AAC.

I also attached the output from my Sansa (playback.mp3) recorded from its headphone jack. I played the samples in the following order: m4a (!), ogg (!), opus (!), wav (ok)

Other formats (tested: WAV (pcm_s16le), FLAC, MP3, AC3, MP2) are OK and have no distortion at all with the same volume and compressor setting.

It seems something goes wrong (a bit overamplified?) between the decoder and the compressor (maybe a floating point precision issue with base output volume from the decoders?). Also, this isn’t necessarily specific to the compressor. I’ve also heard these distortions without the compressor during playback of various Vorbis tracks, however at those it’s harder to hear and distinguish the distortion.

Emoji and other Unicode characters cause Rockbox to crash or to fail to play the file.

This could also cause corruption of data in the worse case scenario.

To recreate this bug:

Add emoji or other non-standard Unicode to track: title, album or artist tagging.
Then attempt to play the file like normal.

This will cause Rockbox to fail to play the audio file or crash (had this happen ones)

The ipod3g config file does not contain “HAVE_HARDWARE_CLICK”.

If it’s added, main.c and misc.c fail to compile.
Including piezo.c in main.c allows it to compile, and the option appears on the iPod, but the clicker does not work.

It seems folder album art cover is reloaded for each track. Would be nice to have it cached and reused for all tracks in folder.

On a player (or simulator) with support for higher sample rates, e.g. Fiio M3K, holding down the fast-forward button to move to the very end of a ALAC file with a sample rate of 96kHz will cause a segfault.

Other codecs may behave differently. A similar FLAC file doesn’t seem to cause a crash, but instead reverts the playback position to where the Fast-Forward button was first pressed.

It should be prevented by `action_wait_for_release()` but this logic is broken.

https://github.com/Rockbox/rockbox/blob/master/apps/gui/wps.c#L383-L384

Broken by the following code:
https://github.com/Rockbox/rockbox/blob/51c1e3ce7fa2874f2b1afd0788ff7d2beba6a96e/apps/action.c#L278-L293

Removing whole block fixes it but seems somehow breaks yes_no screen. Broken logic was firstly introduced in
https://github.com/Rockbox/rockbox/commit/54e6bafada0f0b55246e208c3ffb85394756135f

Changing the “Shuffle” setting from the Shortcuts menu won’t shuffle or unshuffle the playlist as would happen if you changed it from the Settings menu or QuickScreen.

I’m using Rockbox (build from 2022-05-03) with xDuoo X3ii.

The device supports controlling playback with a button press on the headphones.

This is behavior currently enabled with a define (USE_REMOTE) during the build process, and for now, it’s only supported by the xDuoo target.

I would really prefer if this was a setting, as I find it sometimes doesn’t behave as expected, and if I wish to turn it off I have to rebuild rockbox.

Here are the issues I’m having, which may be related to faulty headphones, but might also be related to some error-correction that the native firmware does, and Rockbox doesn’t.

I found that these behaviors can cause Rockbox to think there was a remote button press:
1) Pulling the jack in and out of the player (the rockbox setting to pause/resume playback when the jack is removed/connected is DISABLED).
2) Sometimes moving the headphones wire triggers a button click.

I’m using Rockbox (build from 2022-05-03) with xDuoo X3ii.

Sometimes the bootloader fails to load Rockbox with the error “Cannot boot Rockbox”. After a single restart of the device it loads fine.

The current bootloader makes this restart process very cumbersome:

1) When starting the device without user interference, the bootloader tries to load rockbox and gives the error
2) Then the bootloader is back in the main menu, and after several seconds of no user involvement, will attempt to load rockbox instead.

I haven’t tried, but I think this loop will continue indefinitely.

If I wish to restart the device, I need to follow these steps:

3) Choose the configuration option in the bootloader, and choose the restart action.
4) Wait for the device to restart. Then the bootloader will start with the “Settings” option selected by default (since it was the last selection).
Before it auto-selects it, I need to quickly switch back to the Rockbox menu option.

During this entire process, the device requires my full attention, which means I can’t just turn the device on in my pocket and wait for it to autoplay.

To ease this error-recovery, I suggest the following:

1) When Rockbox fails to load, a countdown timer will start, and when it’s over, the device will automatically restart. The user can interrupt this process with any button press.
2) When choosing the settings option in the bootloader, I don’t think the bootloader should remember it for later. It should only remember the Rockbox option, or the “native firmware” option.

—

Identifier | hbs
Language Name(s) | Serbo-Croatian
Status | Active
Code Sets | 639-3
Equivalent(s) | 639-1: sh (deprecated)
Scope | Macrolanguage (Serbian, Croatian, Bosnian, Montenegrin)
Language Type | Living
Denotations | Ethnologue, Glottolog, Multitree, Wikipedia

—

Request to add this language in RockBox, and/or to fuse Serbian with it.
It’s pretty much 4 languages in one. No need for any additions.

xduoo X3
I am using Car adapter Mode.

No problem during battery charging.
However, once the battery is charged to 100% and the charge is complete, playback will stop

rockbox:d4917888e3-220805
problem is repeatable

@Translated at DeepL

utils/sansapatcher/sansaio.h uses loff_t but doesn’t include the header for it, so it fails to build against the musl libc. I believe this header is <sys/types.h>. I’m not sure, but I think this header is also present on Windows, so including this may avoid the need for the existing messy loff_t logic.

See the original Gentoo Linux bug report.

The lib/skin_parser and utils/themeeditor directories are missing, causing the build to fail. The source tarball is therefore effectively useless.

Revision 58bf7c7e6f.

The iPod freezes at the boot logo.

Additionally, I upgraded my iPod video to this same build, and it boots on the target.

Note: I have put the OS as “Eros Q / K” but actually I’m using a Surfans F20, which runs the same version of Rockbox however.
Build: 1d39261338-220528 (rockbox-aigoerosq-20220530.zip)

To reproduce:
- Install Rockbox (the hosted port) on this player
- Observe that scrolling through a long list of files (whether by using the wheel or holding fast-forward) works smoothly
- Go to settings > General Settings > Display > LCD Settings > Backlight Fade In, and set it to “No” - Observe that scrolling now works sluggishly, and almost grinds to a halt after holding fast-forward for a few seconds

Bug report copied from demon_slayer’s post: https://forums.rockbox.org/index.php/topic,53858.msg250472.html#msg250472

*PANIC*
TLB refill handler at 0x800272fc! [0x4]

My rockbox version is 2f71571c0a-220515. It doesn't happen all the time 
but seems to happen when I eject and remove the USB from the M3K. I am 
able to turn off the device then reboot back into Rockbox.

This crash comes from https://github.com/Rockbox/rockbox/blob/master/apps/tree.c#L659.

Update
It happened again but with a slightly different message

*PANIC*
TLB refill handler at 0x8007c970! [0x720065]

This is in lcd_alpha_bitmap_part_mix in lcd-16bit.c so it’s probably the same tree browser bug, or at least closely related.

Although reported on the M3K I suspect this will be reproducible on all players.

Steps to reproduce:

1. Enter the file browser
2. Plug in USB and then unplug it
3. Select something in the file browser

This is very very low priority, but I thought I’d let you know that in Rockbox Utility version 1.5.1 the native name for the Slovak language is incorrect. It should be ‘Slovenčina’, but the user interface displays ‘Slovakscina’ instead. I have noticed this little error in 2 places - in the combobox where you can select the voice file you want to download and install; and in the voice file creation dialog.

By getting rid of duplicate untagged entries, PF also over-eagerly eliminates
all but one album with a valid artist_idx of 0 when building its album index.

If you have more than one album with the same title but by different album artists,
only one of them is going to be displayed in PictureFlow

Regardless what setting is selected when it comes to displaying file extensions, file name voicing always spells out the full file name (including the extension as well). Visually it all behaves as it should, but it would be nice if file name voicing/spelling followed the user experience of sighted users as long as possible.
This is on an XDuoo X3II, but this does not feel like a player-specific issue to me.

Now Rockbox stays in USB Storage mode after iPod being ejected as removable device. Apple OS behaves better: ejecting iPod puts it into the normal mode (with its interface available). Please make Rockbox behave the similar way.

Hello, I am uploading the following patches for revision and testing:

- Android support for devices newer than KitKat 4.4, based on the work of hp30 from http://hp30.blog.fc2.com/

- Cabbie v2.0 support for 1080×1920 resolutions by me (@gama)

- Cabbie v2.0 support for 1280×800 resolutions.

Tested on: Sony Xperia F5121, Android 6.0.1 and Sony Xperia XZ2, Android 10.0. UPDATE: Lenovo Y3T-X50f tablet, Android 6.0.1.

Tested successfully as of commit: e8faf2f2

IMPORTANT: With commit: 6dcbf7ff77b0596c3317a76097e8b0c1c2f8158a, a floating point error occurs when changing volume!.

Setup Development environment:

I am using Windows 10 using WSL2, Debian distribution.
After installing wsl2 debian, I followed the rockbox development guide to install necessary packages.
(https://www.rockbox.org/wiki/LinuxSimpleGuideToCompiling)

Installed android ndk-r10e to /usr/lib/android-sdk/ndk/android-ndk-r10e using sdk-manager
Installed latest android sdk to /usr/lib/android-sdk

If you want to test on android, export enviroment variables before running configure:
export ANDROID_NDK_PATH=/usr/lib/android-sdk/ndk/android-ndk-r10e
export ANDROID_SDK_PATH=/usr/lib/android-sdk

General notes:

To test cabbie 1080×1920 theme, you can use sdl or android builds. If you want to test on android you need to apply the hp30 patch too.

I have added svg and xcf sources to the patch. I tried to reproduce the original cabbie v2 feel, but some gfx colors are not accurate. Feel free to modify them.

The hp30 patch contains mostly hp30’s work, used with his permission, so please give credits to him/her.
You can easily find the changes searching for ‘hp30.blog’ in the sources.

Known issues:

- The cabbie theme needs a proper wps_backdrop file with gradient like other targets have, but I could not create a 16 bit background that looked good on my phone. So I hope someone can do it.

- The android patch needs lots of testing and revision. I managed, with my current japanese level, to some extent, tanslate and follow hp30 blog. And I have successfully tested his changes on my phone. But there are still many “untested” features of rockbox that need to be checked.

- Plugins, specially, need to be tested one by one. For now I simply made small modifications to build them.
- On my phone I cannot see rockbox playback controls in the notification area widget.
- If you pause the music and return to home screen the app will be terminated.
- rockbox status bar shows very small icons and font text.
- A bigger resolution icon for the app is needed.
- I have not tested other android ndk or sdk versions.
- Volume is set to max at startup. I think it would be good to set it to 50 - 75%, but didn’t found where initial settings are defined.

[UPDATE 01] - Added link to 1280×800 cabbie theme. It was relatively easy to create it with attached xcf and svg files, so If you like, more theme resolutions can be created for other android devices. Please use v1.1 patch and apply after other two patches.

By Mauricio Garrido @gama

Dear developer,

Here I encountered a problem. After the installation of rockbox, I restart the ipod 3gen. What I get is after the apple logo, there is just a blank white screen with back light on, nothing can be seen. But I tried to restart again to apple system, it has no problem.

I put the same disk into another ipod 3gen, everything goes normal. And put the disk back to the first one, it went white screen.

Would you please help to give some advice? What I guess is might be the contrast issue, but I can see nothing on the white screen, so I can’t try to verify it.