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decoder/mad: move code to methods RunDecoder(), RunScan()

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This commit is contained in:
Max Kellermann 2019-08-03 07:49:41 +02:00
parent a0a74951b8
commit d39d2874b4
1 changed files with 43 additions and 27 deletions
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70
src/decoder/plugins/MadDecoderPlugin.cxx
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@ -139,6 +139,9 @@ struct MadDecoder {
MadDecoder(DecoderClient *client, InputStream &input_stream) noexcept;
~MadDecoder() noexcept;
void RunDecoder() noexcept;
bool RunScan(TagHandler &handler) noexcept;
bool Seek(long offset) noexcept;
bool FillBuffer() noexcept;
void ParseId3(size_t tagsize, Tag *tag) noexcept;
@ -953,51 +956,64 @@ MadDecoder::Read() noexcept
}
}
static void
mad_decode(DecoderClient &client, InputStream &input_stream)
inline void
MadDecoder::RunDecoder() noexcept
{
MadDecoder data(&client, input_stream);
assert(client != nullptr);
Tag tag;
if (!data.DecodeFirstFrame(&tag)) {
if (client.GetCommand() == DecoderCommand::NONE)
if (!DecodeFirstFrame(&tag)) {
if (client->GetCommand() == DecoderCommand::NONE)
LogError(mad_domain,
"input does not appear to be a mp3 bit stream");
return;
}
data.AllocateBuffers();
AllocateBuffers();
client.Ready(CheckAudioFormat(data.frame.header.samplerate,
SampleFormat::S24_P32,
MAD_NCHANNELS(&data.frame.header)),
input_stream.IsSeekable(),
data.total_time);
client->Ready(CheckAudioFormat(frame.header.samplerate,
SampleFormat::S24_P32,
MAD_NCHANNELS(&frame.header)),
input_stream.IsSeekable(),
total_time);
if (!tag.IsEmpty())
client.SubmitTag(input_stream, std::move(tag));
client->SubmitTag(input_stream, std::move(tag));
while (data.Read()) {}
while (Read()) {}
}
static void
mad_decode(DecoderClient &client, InputStream &input_stream)
{
MadDecoder data(&client, input_stream);
data.RunDecoder();
}
inline bool
MadDecoder::RunScan(TagHandler &handler) noexcept
{
if (!DecodeFirstFrame(nullptr))
return false;
if (!total_time.IsNegative())
handler.OnDuration(SongTime(total_time));
try {
handler.OnAudioFormat(CheckAudioFormat(frame.header.samplerate,
SampleFormat::S24_P32,
MAD_NCHANNELS(&frame.header)));
} catch (...) {
}
return true;
}
static bool
mad_decoder_scan_stream(InputStream &is, TagHandler &handler) noexcept
{
MadDecoder data(nullptr, is);
if (!data.DecodeFirstFrame(nullptr))
return false;
if (!data.total_time.IsNegative())
handler.OnDuration(SongTime(data.total_time));
try {
handler.OnAudioFormat(CheckAudioFormat(data.frame.header.samplerate,
SampleFormat::S24_P32,
MAD_NCHANNELS(&data.frame.header)));
} catch (...) {
}
return true;
return data.RunScan(handler);
}
static const char *const mad_suffixes[] = { "mp3", "mp2", nullptr };