Add support for ffmpeg 6.0
- Use the new send_frame/receive_packet API for encoding
- Use the new channel layout API for audio
- Fix audio recording
- Copy codec parameters to the stream parameters
- Set correct pts for audio frames
- Read audio samples from file directly to the refcounted AVFrame buffer instead of the `g_pSamples` buffer
- Use global AVPackets allocated with `av_packet_alloc`
- Stop trying to write more audio frames when `WriteAudioFrame` fails with a negative error code
- Fix segfault with `g_pContainer->url`. The field has to be allocated with `av_malloc` before writing to it. It's set to `NULL` by default.
- Properly free allocations with `avcodec_free_context` and `avformat_free_context`
# tools/ directory
This directory contains various tools for HW development.
To learn more about each individual tool, open its source file in a text editor,
it often contains a brief comment at the top.
## List of tools (excerpt)
### Files
* `update_locale_files.sh`: Update locale files
* `check_engine_locale_files.sh`: Check the engine locale files for missing translations and problems
* `hwmap2lua.sh`: Convert HWMAP files to Lua code for usage in missions
* `create_dmg.sh`: Generate a .dmg file (relevant for Mac)
* `dmg_pkg_install.sh`: Downloads and install a .dmg from a URL (relevant for Mac)
* `docgen.sh`: Generate QTfrontend documentation with Doxygen (it's not very good)
* `check_translations.sh`: Check most translation files for mistakes and generate a simple progress report
* `find_outdated_engine_translations.sh`: Check for strings in engine translations that MIGHT be outdated
### Directories
* `hwmapconverter`: C++ application to edit HWMAP files in text form
* `pas2c`: Pascal-to-C rewriter. Used when hwengine is built as C application with `BUILD_ENGINE_C=1`
* `old`: Very outdated stuff that needs re-examination and possibly deletion