From 3a5da13910ec0eccf439d8b3a9f6728d127dc1b8 Mon Sep 17 00:00:00 2001 From: "Matthias P. Braendli" Date: Wed, 21 Feb 2018 11:50:28 +0100 Subject: Correct wav header write --- src/AACDecoder.cpp | 4 ++-- src/wavfile.cpp | 8 ++++---- src/wavfile.h | 4 ++-- 3 files changed, 8 insertions(+), 8 deletions(-) (limited to 'src') diff --git a/src/AACDecoder.cpp b/src/AACDecoder.cpp index 238a801..861bdaf 100644 --- a/src/AACDecoder.cpp +++ b/src/AACDecoder.cpp @@ -104,13 +104,13 @@ void AACDecoder::decode_frame(uint8_t *data, size_t len) std::to_string(init_result)); } - m_channels = aac_channel_mode || ps_flag ? 2 : 1; + m_channels = (aac_channel_mode or ps_flag) ? 2 : 1; size_t output_frame_len = 960 * 2 * m_channels * (sbr_flag ? 2 : 1); m_output_frame.resize(output_frame_len); fprintf(stderr, " Setting decoder output frame len %zu\n", output_frame_len); const int sample_rate = dac_rate ? 48000 : 32000; - m_wav_writer.initialise_header(sample_rate); + m_wav_writer.initialise_header(sample_rate, m_channels); m_decoder_set_up = true; fprintf(stderr, " Set up decoder with %d Hz, %s%swith %d channels\n", diff --git a/src/wavfile.cpp b/src/wavfile.cpp index 7de4ffc..4bd4bd6 100644 --- a/src/wavfile.cpp +++ b/src/wavfile.cpp @@ -219,7 +219,7 @@ WavWriter::WavWriter(const char *filename) } } -void WavWriter::initialise_header(int rate) +void WavWriter::initialise_header(int rate, int channels) { struct wavfile_header header; @@ -234,10 +234,10 @@ void WavWriter::initialise_header(int rate) header.riff_length = 0; header.fmt_length = 16; header.audio_format = 1; - header.num_channels = 2; + header.num_channels = channels; header.sample_rate = samples_per_second; - header.byte_rate = samples_per_second*(bits_per_sample/8); - header.block_align = bits_per_sample/8; + header.byte_rate = samples_per_second*(bits_per_sample/8)*channels; + header.block_align = channels*bits_per_sample/8; header.bits_per_sample = bits_per_sample; header.data_length = 0; diff --git a/src/wavfile.h b/src/wavfile.h index a8cd4d9..6d68053 100644 --- a/src/wavfile.h +++ b/src/wavfile.h @@ -1,6 +1,6 @@ /* ------------------------------------------------------------------ * Copyright (C) 2009 Martin Storsjo - * Copyright (C) 2017 Matthias P. Braendli + * Copyright (C) 2018 Matthias P. Braendli * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -35,7 +35,7 @@ class WavWriter { WavWriter(const WavWriter& other) = delete; WavWriter& operator=(const WavWriter& other) = delete; - void initialise_header(int rate); + void initialise_header(int rate, int channels); void write_data(const uint8_t *data, int length); -- cgit v1.2.3