[Bug]: GStreamer doesn't support H.264 decoding, please install appropriate plugins

Comienza con los logs reportados de winegstreamer y h264_decoder_create, y luego compara el comportamiento de los ejecutores soda-9.0-1 y ge-proton10-15, incluido BOTTLES_USE_SYSTEM_GSTREAMER. Se considera terminado cuando los vídeos H.264 se reproduzcan en Sengoku Dynasty con soda y se respete la configuración documentada de GStreamer del sistema.

Describe the bug

In the game Sengoku Dynasty, when it try to play a video, you just see a black screen and the video doesn't play.

To Reproduce

1. Create a new bottle with soda-9.0-1 executor.
2. Open Sengoku Dynasty
3. Go to in game help an try to reproduce any video.
4. Blank screen

Package

Flatpak from Flathub

Distribution

Arch Linux

Debugging Information

Official Package: true
Version: '51.24'
DE/WM: gnome
Display:
    X.org: true
    X.org (port): :0
    Wayland: true
Graphics:
    vendors:
        nvidia: &id002
            vendor: nvidia
            envs:
                __NV_PRIME_RENDER_OFFLOAD: '1'
                __GLX_VENDOR_LIBRARY_NAME: nvidia
                __VK_LAYER_NV_optimus: NVIDIA_only
            icd: /usr/share/vulkan/icd.d/nvidia_icd.json
            nvngx_path: /usr/lib/x86_64-linux-gnu/GL/nvidia-580-76-05/lib/nvidia/wine
        amd: &id001
            vendor: amd
            envs:
                DRI_PRIME: '1'
            icd: /usr/share/vulkan/icd.d/radeon_icd.x86_64.json:/usr/lib/x86_64-linux-gnu/GL/vulkan/icd.d/radeon_icd.x86_64.json:/usr/lib/i386-linux-gnu/GL/vulkan/icd.d/radeon_icd.i686.json
    prime:
        integrated: *id001
        discrete: *id002
Kernel:
    Type: Linux
    Version: 6.16.4-arch1-1
Disk:
    Total: 33236889600
    Free: 33236705280
RAM:
    MemTotal: 61.9GiB
    MemAvailable: 57.1GiB
Bottles_envs: null

Troubleshooting Logs

0:00:02.055081335   114 0x7fa97c037d30 ERROR                   WINE wg_transform.c:574:wg_transform_create: Failed to create winegstreamer transform.
03dc:err:winediag:h264_decoder_create GStreamer doesn't support H.264 decoding, please install appropriate plugins
0:00:04.039540046   114 0x7fa97c456860 ERROR                   WINE wg_transform.c:574:wg_transform_create: Failed to create winegstreamer transform.
040c:err:winediag:h264_decoder_create GStreamer doesn't support H.264 decoding, please install appropriate plugins
0:00:05.075277264   114 0x7fa984015180 ERROR                   WINE wg_transform.c:574:wg_transform_create: Failed to create winegstreamer transform.
0428:err:winediag:h264_decoder_create GStreamer doesn't support H.264 decoding, please install appropriate plugins

Additional context

I started the system with the environment variable BOTTLES_USE_SYSTEM_GSTREAMER=1, but it doesn't seem to affect it at all. It doesn't matter whether I define it at the bottle level or at the global level. I have also verified that inside the bottle there is the directory /usr/lib/x86_64-linux-gnu/gstreamer-1.0 containing all the .so files.

The plugins are correctly installed on my system:

% gst-inspect-1.0 | grep 264
closedcaption:  h264ccextractor: H.264 Closed Caption Extractor
closedcaption:  h264ccinserter: H.264 Closed Caption Inserter
codec2json:  h2642json: H2642json
codectimestamper:  h264timestamper: H.264 timestamper
libav:  avdec_h264: libav H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 decoder
libav:  avmux_ipod: libav iPod H.264 MP4 (MPEG-4 Part 14) muxer
nvcodec:  nvautogpuh264enc: NVENC H.264 Video Encoder Auto GPU select Mode
nvcodec:  nvh264dec: NVDEC H.264 Decoder
nvcodec:  nvh264enc: NVENC H.264 Video Encoder CUDA Mode
openh264:  openh264dec: OpenH264 video decoder
openh264:  openh264enc: OpenH264 video encoder
rtp:  rtph264depay: RTP H264 depayloader
rtp:  rtph264pay: RTP H264 payloader
typefindfunctions: video/x-h264: h264, x264, 264
uvch264:  uvch264deviceprovider (GstDeviceProviderFactory)
uvch264:  uvch264mjpgdemux: UVC H264 MJPG Demuxer
uvch264:  uvch264src: UVC H264 Source
videoparsersbad:  h264parse: H.264 parser
vulkan:  vulkanh264dec: Vulkan H.264 decoder on NVIDIA GeForce RTX 2060 SUPER
x264:  x264enc: x264 H.264 Encoder

With the ge-proton10-15 executor, the videos work correctly (which is what I use as a workaround), but I'm really interested in getting them to work with soda as well.