v1.0.11-beta.4

[1.0.11-beta.4]

Changed

• Software video decode strategy — Pi 2/3 now use CPU software decode
  (libVLC) instead of GPU hardware decode. gpu_mem returned to
  16 MB (1.0.10-beta.3 briefly raised it to 128) so more RAM is
  available to the ARM cores. Pi 4/5 are unaffected — they continue to
  use hardware decode via rpi-hevc-dec / drm_avcodec.
• Pi 3 transcode bitrate — max_bitrate lowered from 20 →
  8 Mbps, matching the ~8 Mbps software decode ceiling of the
  Cortex‑A53 cores (measured: 5.6 & 7.7 Mbps play smoothly, ≥10.9 Mbps
  drops frames).
• Bitrate‑targeted encoding for Pi 2/3 — profiles with
  bitrate_target: true now use -b:v {max_bitrate}M (target
  average bitrate) instead of -crf. CRF with -maxrate only caps
  peaks — the average can still overshoot by 30–50 %, exceeding the
  software decode ceiling. -b:v produces predictable output at the
  target rate.
• Setup script — gpu_mem=16 for all Pi models, enforced on both
  fresh installs and existing configs regardless of prior value.

Fixed

• Pi 3 choppy video at 10–22 Mbps — CRF‑encoded files for
  14947567 (10.9 Mbps) and 17815074 (21.5 Mbps) regularly
  exceeded the ARM software decode ceiling (~8 Mbps), causing frame
  drops. Bitrate‑targeted encoding reliably produces ≤8 Mbps output.
• Inconsistent gpu_mem on upgraded installs — the 1.0.10-beta.3
  setup script would upgrade gpu_mem to 128 on existing installs;
  now reverted to 16.