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Decode ATRAC9 streams after complete RIFF headers

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Co-authored-by: Techx3 <56268269+Techx3@users.noreply.github.com>
Co-authored-by: Ali Almohaya <17254073+Almo7aya@users.noreply.github.com>
This commit is contained in:
nmzik
2026-09-21 21:52:15 +04:00
parent a6a56c8a44
commit e40438f95e
1 changed files with 8 additions and 6 deletions
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src/libs/ajm/atrac9_decoder.h
+8 -6
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@@ -464,6 +464,14 @@ private:
const auto* chunk = input + offset; const auto* chunk = input + offset;
const auto chunk_size = static_cast<size_t>(AjmReadLe32(chunk + 4)); const auto chunk_size = static_cast<size_t>(AjmReadLe32(chunk + 4));
const auto payload = offset + 8; const auto payload = offset + 8;
// The data chunk describes the whole stream; this job may contain only its prefix.
if (AjmFourCcEquals(chunk, 'd', 'a', 't', 'a')) {
*data_offset = payload;
result->input_consumed = payload;
result->format = GetFormat();
result->total_decoded_samples = m_total_decoded_samples;
return true;
}
if (payload > input_size || chunk_size > input_size - payload) { if (payload > input_size || chunk_size > input_size - payload) {
result->result = AJM_RESULT_PARTIAL_INPUT; result->result = AJM_RESULT_PARTIAL_INPUT;
return false; return false;
@@ -496,12 +504,6 @@ private:
LOGF("AJM ATRAC9 gapless: total=%" PRIu32 ", skip=%" PRIu16 "\n", LOGF("AJM ATRAC9 gapless: total=%" PRIu32 ", skip=%" PRIu16 "\n",
gapless_decode.total_samples, gapless_decode.skip_samples); gapless_decode.total_samples, gapless_decode.skip_samples);
} }
} else if (AjmFourCcEquals(chunk, 'd', 'a', 't', 'a')) {
*data_offset = payload;
result->input_consumed = payload;
result->format = GetFormat();
result->total_decoded_samples = m_total_decoded_samples;
return true;
} }
const auto padded_size = chunk_size + (chunk_size & 1u); const auto padded_size = chunk_size + (chunk_size & 1u);