encoder/Interface: move functions into the struct

This commit is contained in:
Max Kellermann 2015-01-08 19:36:19 +01:00
parent 362a6e6d46
commit ae4c189e19
6 changed files with 68 additions and 78 deletions

View File

@ -37,75 +37,65 @@ struct Encoder {
, open(false)
#endif
{}
/**
* Frees an #Encoder object.
*/
void Dispose() {
assert(!open);
plugin.finish(this);
}
/**
* Opens the object. You must call this prior to using it.
* Before you free it, you must call Close(). You may open
* and close (reuse) one encoder any number of times.
*
* After this function returns successfully and before the
* first encoder_write() call, you should invoke
* encoder_read() to obtain the file header.
*
* @param audio_format the encoder's input audio format; the plugin
* may modify the struct to adapt it to its abilities
* @return true on success
*/
bool Open(AudioFormat &audio_format, Error &error) {
assert(!open);
bool success = plugin.open(this, audio_format, error);
#ifndef NDEBUG
open = success;
pre_tag = tag = end = false;
#endif
return success;
}
/**
* Closes the object. This disables the encoder, and readies
* it for reusal by calling Open() again.
*/
void Close() {
assert(open);
if (plugin.close != nullptr)
plugin.close(this);
#ifndef NDEBUG
open = false;
#endif
}
};
/**
* Frees an encoder object.
*
* @param encoder the encoder
*/
static inline void
encoder_finish(Encoder *encoder)
{
assert(!encoder->open);
encoder->plugin.finish(encoder);
}
/**
* Opens an encoder object. You must call this prior to using it.
* Before you free it, you must call encoder_close(). You may open
* and close (reuse) one encoder any number of times.
*
* After this function returns successfully and before the first
* encoder_write() call, you should invoke encoder_read() to obtain
* the file header.
*
* @param encoder the encoder
* @param audio_format the encoder's input audio format; the plugin
* may modify the struct to adapt it to its abilities
* @return true on success
*/
static inline bool
encoder_open(Encoder *encoder, AudioFormat &audio_format,
Error &error)
{
assert(!encoder->open);
bool success = encoder->plugin.open(encoder, audio_format, error);
#ifndef NDEBUG
encoder->open = success;
encoder->pre_tag = encoder->tag = encoder->end = false;
#endif
return success;
}
/**
* Closes an encoder object. This disables the encoder, and readies
* it for reusal by calling encoder_open() again.
*
* @param encoder the encoder
*/
static inline void
encoder_close(Encoder *encoder)
{
assert(encoder->open);
if (encoder->plugin.close != nullptr)
encoder->plugin.close(encoder);
#ifndef NDEBUG
encoder->open = false;
#endif
}
/**
* Ends the stream: flushes the encoder object, generate an
* end-of-stream marker (if applicable), make everything which might
* currently be buffered available by encoder_read().
*
* After this function has been called, the encoder may not be usable
* for more data, and only encoder_read() and encoder_close() can be
* for more data, and only encoder_read() and Encoder::Close() can be
* called.
*
* @param encoder the encoder

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@ -64,7 +64,7 @@ class RecorderOutput {
~RecorderOutput() {
if (encoder != nullptr)
encoder_finish(encoder);
encoder->Dispose();
}
bool Initialize(const config_param &param, Error &error_r) {
@ -175,13 +175,13 @@ RecorderOutput::Open(AudioFormat &audio_format, Error &error)
/* open the encoder */
if (!encoder_open(encoder, audio_format, error)) {
if (!encoder->Open(audio_format, error)) {
delete file;
return false;
}
if (!EncoderToFile(error)) {
encoder_close(encoder);
encoder->Close();
delete file;
return false;
}
@ -199,7 +199,7 @@ RecorderOutput::Commit(Error &error)
/* now really close everything */
encoder_close(encoder);
encoder->Close();
if (success && !file->Commit(error))
success = false;

View File

@ -346,7 +346,7 @@ static void close_shout_conn(ShoutOutput * sd)
if (encoder_end(sd->encoder, IgnoreError()))
write_page(sd, IgnoreError());
encoder_close(sd->encoder);
sd->encoder->Close();
}
if (shout_get_connected(sd->shout_conn) != SHOUTERR_UNCONNECTED &&
@ -362,7 +362,7 @@ my_shout_finish_driver(AudioOutput *ao)
{
ShoutOutput *sd = (ShoutOutput *)ao;
encoder_finish(sd->encoder);
sd->encoder->Dispose();
delete sd;
@ -416,13 +416,13 @@ my_shout_open_device(AudioOutput *ao, AudioFormat &audio_format,
if (!shout_connect(sd, error))
return false;
if (!encoder_open(sd->encoder, audio_format, error)) {
if (!sd->encoder->Open(audio_format, error)) {
shout_close(sd->shout_conn);
return false;
}
if (!write_page(sd, error)) {
encoder_close(sd->encoder);
sd->encoder->Close();
shout_close(sd->shout_conn);
return false;
}

View File

@ -64,7 +64,7 @@ HttpdOutput::~HttpdOutput()
metadata->Unref();
if (encoder != nullptr)
encoder_finish(encoder);
encoder->Dispose();
}
@ -295,7 +295,7 @@ httpd_output_disable(AudioOutput *ao)
inline bool
HttpdOutput::OpenEncoder(AudioFormat &audio_format, Error &error)
{
if (!encoder_open(encoder, audio_format, error))
if (!encoder->Open(audio_format, error))
return false;
/* we have to remember the encoder header, i.e. the first
@ -355,7 +355,7 @@ HttpdOutput::Close()
if (header != nullptr)
header->Unref();
encoder_close(encoder);
encoder->Close();
}
static void

View File

@ -90,7 +90,7 @@ int main(int argc, char **argv)
}
}
if (!encoder_open(encoder, audio_format, error)) {
if (!encoder->Open(audio_format, error)) {
LogError(error, "Failed to open encoder");
return EXIT_FAILURE;
}
@ -116,6 +116,6 @@ int main(int argc, char **argv)
encoder_to_stdout(*encoder);
encoder_close(encoder);
encoder_finish(encoder);
encoder->Close();
encoder->Dispose();
}

View File

@ -63,7 +63,7 @@ main(gcc_unused int argc, gcc_unused char **argv)
/* open the encoder */
AudioFormat audio_format(44100, SampleFormat::S16, 2);
success = encoder_open(encoder, audio_format, IgnoreError());
success = encoder->Open(audio_format, IgnoreError());
assert(success);
encoder_to_stdout(*encoder);
@ -108,6 +108,6 @@ main(gcc_unused int argc, gcc_unused char **argv)
encoder_to_stdout(*encoder);
encoder_close(encoder);
encoder_finish(encoder);
encoder->Close();
encoder->Dispose();
}