TAV-DT: no Zstd

video_encoder/include/encoder_tad.h

@@ -33,18 +33,20 @@ static inline int tad32_quality_to_max_index(int quality) {
  * @param max_index       Maximum quantisation index (7=3bit, 15=4bit, 31=5bit, 63=6bit, 127=7bit)
  * @param quantiser_scale Quantiser scaling factor (1.0=baseline, 2.0=2x coarser quantisation)
  *                        Higher values = more aggressive quantisation = smaller files
+ * @param zstd_level      Zstd compression level (1-22). Use negative value to disable compression.
+ *                        When disabled, MSB of payload_size is set to indicate uncompressed data.
  * @param output          Output buffer (must be large enough)
  * @return                Number of bytes written to output, or 0 on error
  *
  * Output format:
  *   uint16 sample_count (samples per channel)
  *   uint8  max_index (maximum quantisation index)
- *   uint32 payload_size (bytes in payload)
- *   *      payload (encoded M/S data, Zstd-compressed with 2-bit twobitmap)
+ *   uint32 payload_size (bytes in payload; MSB=1 indicates uncompressed)
+ *   *      payload (encoded M/S data, optionally Zstd-compressed)
  */
 size_t tad32_encode_chunk(const float *pcm32_stereo, size_t num_samples,
                           int max_index,
-                          float quantiser_scale, uint8_t *output);
+                          float quantiser_scale, int zstd_level, uint8_t *output);
 
 /**
  * Print accumulated coefficient statistics

video_encoder/include/tav_video_decoder.h

@@ -27,6 +27,7 @@ typedef struct {
     uint8_t quantiser_cg;     // Base quantiser index for Cg/Cp
     uint8_t encoder_preset;   // Encoder preset flags (sports, anime, etc.)
     int monoblock;            // 1=single tile (monoblock), 0=multi-tile
+    int no_zstd;              // 1=packets are uncompressed (Video Flags bit 4), 0=Zstd compressed
 } tav_video_params_t;
 
 // Create video decoder context