The docker/ directory contained a 32-bit ARM Buildroot toolchain that
didn't match the target device (aarch64 Ubuntu 22.04). Replaced by the
arm64 Docker container in docker-arm64/.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Uses ubuntu:22.04 arm64 image running under QEMU emulation to produce
aarch64 binaries that match the target device exactly (same glibc, same
distro). Replaces the broken Buildroot cross-compilation approach.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Adds a Target Device section to TOOLCHAIN.md with specs gathered over
SSH from the Anbernic RG35XX Plus. Confirms the device runs Ubuntu 22.04
with all required shared libraries (SDL2, FFmpeg) pre-installed, making
the Buildroot toolchain unnecessary. Updates Possible Approaches to
reflect that native arm64 container builds are confirmed working.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The Docker/Buildroot toolchain produces 32-bit ARM binaries but the
RG35XX target runs a 64-bit aarch64 userland. Add docs/TOOLCHAIN.md
covering the full pipeline, config details, patches, and three possible
approaches to fix the architecture mismatch.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Single Makefile supports native builds (pkg-config) and cross-compilation
(CROSS_COMPILE/PREFIX env vars). Fixes -Wformat-truncation and
-Wstringop-truncation warnings at -O2 by sizing current_file to match
audio_files (256) and replacing strncpy with snprintf.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Open the joystick via SDL_JoystickOpen() when no GameController mapping
exists, fixing d-pad and face button input on devices like the Anbernic
retro handheld (GUID not in SDL's database). Handles JOYHATMOTION for
d-pad navigation and JOYBUTTONDOWN button 0 for activation.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The spritesheet is compiled in as a C byte array. An external
controls.png in cwd still takes precedence for skinning. Includes
tools/embed_png.py to regenerate the header if the asset changes.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Logs joystick enumeration at startup (name, GameController status, GUID)
and all SDL input events in the main loop to help diagnose why the retro
handheld's d-pad/buttons aren't recognized by the GameController API.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The m4a muxer doesn't support mjpeg as a regular video stream, causing
concatenation to fail when inputs contain album art. Extract art separately
and re-attach it with attached_pic disposition. Also strip leading track
numbers (e.g. "01 ") from chapter titles.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Shell script to recombine individual story m4a files back into
per-cassette files using ffmpeg concat demuxer (stream copy, no
re-encoding). Generates chapter markers from input filenames and
preserves album art.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace mouse input with cursor-based navigation (arrow keys / d-pad +
Enter / A button) and add app-level volume control with a persistent
vertical slider, enabling use on a handheld gaming device without mouse
or system mixer access.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace fire-and-forget decode_audio() with a streaming Decoder that uses
libswresample to convert planar float to interleaved stereo, fixing the
sped-up audio bug and eliminating multi-GB memory usage for long files.
Add 10-second rewind/fast-forward, stop (pause in place), position
persistence per file via positions.txt, directory scanning with file
switching, embedded album art display, and a progress bar. Handles both
old and new FFmpeg channel layout APIs via version preprocessor check.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
