bsncubed
8a6cb53e3b
- main/decoder: MPEG-TS demux (packets reassembled across HTTP chunks, PAT -> PMT -> first ADTS-AAC PID, PES headers stripped) feeding the esp_audio_codec simple AAC decoder (ADTS, AAC-Plus enabled for HE-AAC v1/v2 variants). 7.3 only counts and logs PCM per segment. - esp_audio_codec pinned to ~2.5.0: 2.6+ needs P4 rev >= 3 (this board is rev 1.3). Noted in CLAUDE.md, also for esp_audio_effects < 1.4. - The library's combined TS decoder lost ~8% of the frames (segments decoded to 7.9-9.6 s, "decode error -1"); with the own demux every segment is sample exact: 441344 / 440320 frames = 10.008 / 9.985 s, matching EXTINF 10.0078 / 9.9846 (431 / 430 AAC frames), no errors. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
13 lines
358 B
C
13 lines
358 B
C
// Decoder for HLS segments (MPEG-TS with AAC-LC / HE-AAC), fed by the HLS client's sink.
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#pragma once
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include "esp_err.h"
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esp_err_t decoder_init(void);
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// hls_sink_t: segment bytes in; PCM out (7.3: counted and logged).
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bool decoder_feed(const uint8_t *data, size_t len, bool segment_start);
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