diff options
| author | Max Kellermann <max@duempel.org> | 2011-10-10 09:05:58 +0200 |
|---|---|---|
| committer | Max Kellermann <max@duempel.org> | 2011-10-10 10:13:43 +0200 |
| commit | 2c38d19af27ad001876b606950efc0598dd067fb (patch) | |
| tree | 730aa53c874598d8d1c0441481edbfd00b09baa1 /src/audio_format.h | |
| parent | 311e627463a17a499a88b50af2404e955115675b (diff) | |
audio_format: add function attributes
For better optimization.
Diffstat (limited to 'src/audio_format.h')
| -rw-r--r-- | src/audio_format.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/audio_format.h b/src/audio_format.h index 1e26974b..8c2906d5 100644 --- a/src/audio_format.h +++ b/src/audio_format.h @@ -20,6 +20,7 @@ #ifndef MPD_AUDIO_FORMAT_H #define MPD_AUDIO_FORMAT_H +#include <glib.h> #include <stdint.h> #include <stdbool.h> #include <assert.h> @@ -189,6 +190,7 @@ audio_valid_channel_count(unsigned channels) * Returns false if the format is not valid for playback with MPD. * This function performs some basic validity checks. */ +G_GNUC_PURE static inline bool audio_format_valid(const struct audio_format *af) { return audio_valid_sample_rate(af->sample_rate) && @@ -200,6 +202,7 @@ static inline bool audio_format_valid(const struct audio_format *af) * Returns false if the format mask is not valid for playback with * MPD. This function performs some basic validity checks. */ +G_GNUC_PURE static inline bool audio_format_mask_valid(const struct audio_format *af) { return (af->sample_rate == 0 || @@ -237,6 +240,7 @@ audio_format_mask_apply(struct audio_format *af, assert(audio_format_valid(af)); } +G_GNUC_CONST static inline unsigned sample_format_size(enum sample_format format) { @@ -265,6 +269,7 @@ sample_format_size(enum sample_format format) /** * Returns the size of each (mono) sample in bytes. */ +G_GNUC_PURE static inline unsigned audio_format_sample_size(const struct audio_format *af) { return sample_format_size((enum sample_format)af->format); @@ -273,6 +278,7 @@ static inline unsigned audio_format_sample_size(const struct audio_format *af) /** * Returns the size of each full frame in bytes. */ +G_GNUC_PURE static inline unsigned audio_format_frame_size(const struct audio_format *af) { @@ -283,6 +289,7 @@ audio_format_frame_size(const struct audio_format *af) * Returns the floating point factor which converts a time span to a * storage size in bytes. */ +G_GNUC_PURE static inline double audio_format_time_to_size(const struct audio_format *af) { return af->sample_rate * audio_format_frame_size(af); @@ -295,6 +302,7 @@ static inline double audio_format_time_to_size(const struct audio_format *af) * @param format a #sample_format enum value * @return the string */ +G_GNUC_PURE G_GNUC_MALLOC const char * sample_format_to_string(enum sample_format format); @@ -306,6 +314,7 @@ sample_format_to_string(enum sample_format format); * @param s a buffer to print into * @return the string, or NULL if the #audio_format object is invalid */ +G_GNUC_PURE G_GNUC_MALLOC const char * audio_format_to_string(const struct audio_format *af, struct audio_format_string *s); |