Commit f7beac78 authored by Stefan Westerfeld's avatar Stefan Westerfeld

Check wav input format type from header.

Signed-off-by: Stefan Westerfeld's avatarStefan Westerfeld <stefan@space.twc.de>
parent 1dc5f353
......@@ -108,6 +108,25 @@ WavPipeInputStream::open (const string& filename)
if (!fread (buffer.data(), buffer.size(), 1, m_input_file))
return read_error ("wav input is incomplete (error reading fmt chunk)");
int format_type = header_get_u16 (&buffer[0]);
if (format_type != 1)
{
if (format_type == 0xFFFE && chunk_size >= 40) /* extended */
{
static const std::array<unsigned char, 16> pcm_fmt_guid
{
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71
};
if (!std::equal (pcm_fmt_guid.begin(), pcm_fmt_guid.end(), &buffer[24]))
return Error (string_printf ("wav input has unsupported extended format type, expected PCM"));
}
else
{
return Error (string_printf ("wav input has unsupported format type (%d), expected PCM", format_type));
}
}
format.set_channels (header_get_u16 (&buffer[2]));
format.set_sample_rate (header_get_u32 (&buffer[4]));
format.set_bit_depth (header_get_u16 (&buffer[14]));
......
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