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TAD: better bit allocation using statistics

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minjaesong
2025-10-26 18:16:28 +09:00
parent 9fcb7fc95c
commit 370d511f44
5 changed files with 167 additions and 177 deletions
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7
video_encoder/encoder_tad.h
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@@ -24,18 +24,19 @@
*
* @param pcm32_stereo Input PCM32fLE stereo samples (interleaved L,R)
* @param num_samples Number of samples per channel (min 1024)
* @param quality Quality level 0-5 (0=lowest, 5=highest)
* @param quant_bits Quantization bits 4-12 (default: 7)
* @param use_zstd 1=enable Zstd compression, 0=disable
* @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 quant_bits (quantization bits used)
* uint32 payload_size (bytes in payload)
* * payload (encoded M/S data, optionally Zstd-compressed)
*/
size_t tad32_encode_chunk(const float *pcm32_stereo, size_t num_samples, int quality,
int use_zstd, uint8_t *output);
size_t tad32_encode_chunk(const float *pcm32_stereo, size_t num_samples,
int quant_bits, int use_zstd, uint8_t *output);
/**
* Print accumulated coefficient statistics