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tag/Handler: implement FullTagHandler::OnAudioFormat()

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This commit is contained in:
Max Kellermann 2018-07-06 22:46:03 +02:00
parent 73c95d1fb2
commit c05bca6f2c
6 changed files with 35 additions and 13 deletions
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5
src/TagFile.cxx
View File

@ -100,9 +100,10 @@ ScanFileTagsNoGeneric(Path path_fs, TagHandler &handler) noexcept
}
bool
ScanFileTagsWithGeneric(Path path, TagBuilder &builder) noexcept
ScanFileTagsWithGeneric(Path path, TagBuilder &builder,
AudioFormat *audio_format) noexcept
{
FullTagHandler h(builder);
FullTagHandler h(builder, audio_format);
if (!ScanFileTagsNoGeneric(path, h))
return false;

4
src/TagFile.hxx
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@ -22,6 +22,7 @@
#include "check.h"
struct AudioFormat;
class Path;
class TagHandler;
class TagBuilder;
@ -46,6 +47,7 @@ ScanFileTagsNoGeneric(Path path, TagHandler &handler) noexcept;
* found)
*/
bool
ScanFileTagsWithGeneric(Path path, TagBuilder &builder) noexcept;
ScanFileTagsWithGeneric(Path path, TagBuilder &builder,
AudioFormat *audio_format=nullptr) noexcept;
#endif

10
src/TagStream.cxx
View File

@ -85,11 +85,12 @@ try {
}
bool
tag_stream_scan(InputStream &is, TagBuilder &builder) noexcept
tag_stream_scan(InputStream &is, TagBuilder &builder,
AudioFormat *audio_format) noexcept
{
assert(is.IsReady());
FullTagHandler h(builder);
FullTagHandler h(builder, audio_format);
if (!tag_stream_scan(is, h))
return false;
@ -101,12 +102,13 @@ tag_stream_scan(InputStream &is, TagBuilder &builder) noexcept
}
bool
tag_stream_scan(const char *uri, TagBuilder &builder) noexcept
tag_stream_scan(const char *uri, TagBuilder &builder,
AudioFormat *audio_format) noexcept
try {
Mutex mutex;
auto is = InputStream::OpenReady(uri, mutex);
return tag_stream_scan(*is, builder);
return tag_stream_scan(*is, builder, audio_format);
} catch (const std::exception &e) {
return false;
}

7
src/TagStream.hxx
View File

@ -22,6 +22,7 @@
#include "check.h"
struct AudioFormat;
class InputStream;
class TagHandler;
class TagBuilder;
@ -48,9 +49,11 @@ tag_stream_scan(const char *uri, TagHandler &handler) noexcept;
* found)
*/
bool
tag_stream_scan(InputStream &is, TagBuilder &builder) noexcept;
tag_stream_scan(InputStream &is, TagBuilder &builder,
AudioFormat *audio_format=nullptr) noexcept;
bool
tag_stream_scan(const char *uri, TagBuilder &builder) noexcept;
tag_stream_scan(const char *uri, TagBuilder &builder,
AudioFormat *audio_format=nullptr) noexcept;
#endif

6
src/tag/Handler.cxx
View File

@ -57,3 +57,9 @@ FullTagHandler::OnPair(const char *name, gcc_unused const char *value) noexcept
tag.SetHasPlaylist(true);
}
void
FullTagHandler::OnAudioFormat(AudioFormat af) noexcept
{
if (audio_format != nullptr)
*audio_format = af;
}

16
src/tag/Handler.hxx
View File

@ -140,15 +140,23 @@ public:
* attribute.
*/
class FullTagHandler : public AddTagHandler {
AudioFormat *const audio_format;
protected:
FullTagHandler(unsigned _want_mask, TagBuilder &_builder) noexcept
:AddTagHandler(WANT_PAIR|_want_mask, _builder) {}
FullTagHandler(unsigned _want_mask, TagBuilder &_builder,
AudioFormat *_audio_format) noexcept
:AddTagHandler(WANT_PAIR|_want_mask
|(_audio_format ? WANT_AUDIO_FORMAT : 0),
_builder),
audio_format(_audio_format) {}
public:
explicit FullTagHandler(TagBuilder &_builder) noexcept
:FullTagHandler(0, _builder) {}
explicit FullTagHandler(TagBuilder &_builder,
AudioFormat *_audio_format=nullptr) noexcept
:FullTagHandler(0, _builder, _audio_format) {}
void OnPair(const char *key, const char *value) noexcept override;
void OnAudioFormat(AudioFormat af) noexcept override;
};
#endif