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decoder/mpg123: make variables more local

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This commit is contained in:
Max Kellermann 2014-09-24 19:13:20 +02:00
parent f32d34b965
commit 78c43edcac
1 changed files with 11 additions and 20 deletions
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31
src/decoder/plugins/Mpg123DecoderPlugin.cxx
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@ -60,14 +60,10 @@ static bool
mpd_mpg123_open(mpg123_handle *handle, const char *path_fs,
AudioFormat &audio_format)
{
int error;
int channels, encoding;
long rate;
/* mpg123_open() wants a writable string :-( */
char *const path2 = const_cast<char *>(path_fs);
error = mpg123_open(handle, path2);
int error = mpg123_open(handle, path2);
if (error != MPG123_OK) {
FormatWarning(mpg123_domain,
"libmpg123 failed to open %s: %s",
@ -77,6 +73,8 @@ mpd_mpg123_open(mpg123_handle *handle, const char *path_fs,
/* obtain the audio format */
long rate;
int channels, encoding;
error = mpg123_getformat(handle, &rate, &channels, &encoding);
if (error != MPG123_OK) {
FormatWarning(mpg123_domain,
@ -106,14 +104,10 @@ mpd_mpg123_open(mpg123_handle *handle, const char *path_fs,
static void
mpd_mpg123_file_decode(Decoder &decoder, Path path_fs)
{
mpg123_handle *handle;
int error;
off_t num_samples;
struct mpg123_frameinfo info;
/* open the file */
handle = mpg123_new(nullptr, &error);
int error;
mpg123_handle *const handle = mpg123_new(nullptr, &error);
if (handle == nullptr) {
FormatError(mpg123_domain,
"mpg123_new() failed: %s",
@ -127,7 +121,7 @@ mpd_mpg123_file_decode(Decoder &decoder, Path path_fs)
return;
}
num_samples = mpg123_length(handle);
const off_t num_samples = mpg123_length(handle);
/* tell MPD core we're ready */
@ -137,6 +131,7 @@ mpd_mpg123_file_decode(Decoder &decoder, Path path_fs)
decoder_initialized(decoder, audio_format, true, duration);
struct mpg123_frameinfo info;
if (mpg123_info(handle, &info) != MPG123_OK) {
info.vbr = MPG123_CBR;
info.bitrate = 0;
@ -156,11 +151,10 @@ mpd_mpg123_file_decode(Decoder &decoder, Path path_fs)
DecoderCommand cmd;
do {
unsigned char buffer[8192];
size_t nbytes;
/* decode */
unsigned char buffer[8192];
size_t nbytes;
error = mpg123_read(handle, buffer, sizeof(buffer), &nbytes);
if (error != MPG123_OK) {
if (error != MPG123_DONE)
@ -205,11 +199,8 @@ static bool
mpd_mpg123_scan_file(Path path_fs,
const struct tag_handler *handler, void *handler_ctx)
{
mpg123_handle *handle;
int error;
off_t num_samples;
handle = mpg123_new(nullptr, &error);
mpg123_handle *const handle = mpg123_new(nullptr, &error);
if (handle == nullptr) {
FormatError(mpg123_domain,
"mpg123_new() failed: %s",
@ -223,7 +214,7 @@ mpd_mpg123_scan_file(Path path_fs,
return false;
}
num_samples = mpg123_length(handle);
const off_t num_samples = mpg123_length(handle);
if (num_samples <= 0) {
mpg123_delete(handle);
return false;