diff options
| author | Lennart Poettering <lennart@poettering.net> | 2008-12-24 00:46:02 +0100 | 
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2008-12-24 00:46:02 +0100 | 
| commit | 3e3c103ed9e9e4782c12380c3735ab9aaf2611c8 (patch) | |
| tree | 862b47626a7948a1ee1fef34cda01f9cd1f70900 /src | |
| parent | 6342053b34ab2f8addd2ed74cd965ec794ee50d4 (diff) | |
Add APIs to pass pa_volume_t fields in a tagstruct
Diffstat (limited to 'src')
| -rw-r--r-- | src/pulsecore/tagstruct.c | 38 | ||||
| -rw-r--r-- | src/pulsecore/tagstruct.h | 6 | 
2 files changed, 42 insertions, 2 deletions
| diff --git a/src/pulsecore/tagstruct.c b/src/pulsecore/tagstruct.c index 62a30144..330b7596 100644 --- a/src/pulsecore/tagstruct.c +++ b/src/pulsecore/tagstruct.c @@ -254,6 +254,17 @@ void pa_tagstruct_put_cvolume(pa_tagstruct *t, const pa_cvolume *cvolume) {      }  } +void pa_tagstruct_put_volume(pa_tagstruct *t, pa_volume_t vol) { +    uint32_t u; +    pa_assert(t); + +    extend(t, 5); +    t->data[t->length] = PA_TAG_VOLUME; +    u = htonl((uint32_t) vol); +    memcpy(t->data+t->length+1, &u, 4); +    t->length += 5; +} +  void pa_tagstruct_put_proplist(pa_tagstruct *t, pa_proplist *p) {      void *state = NULL;      pa_assert(t); @@ -555,6 +566,25 @@ int pa_tagstruct_get_cvolume(pa_tagstruct *t, pa_cvolume *cvolume) {      return 0;  } +int pa_tagstruct_get_volume(pa_tagstruct*t, pa_volume_t *vol) { +    uint32_t u; + +    pa_assert(t); +    pa_assert(vol); + +    if (t->rindex+5 > t->length) +        return -1; + +    if (t->data[t->rindex] != PA_TAG_VOLUME) +        return -1; + +    memcpy(&u, t->data+t->rindex+1, 4); +    *vol = (pa_volume_t) ntohl(u); + +    t->rindex += 5; +    return 0; +} +  int pa_tagstruct_get_proplist(pa_tagstruct *t, pa_proplist *p) {      size_t saved_rindex; @@ -663,6 +693,10 @@ void pa_tagstruct_put(pa_tagstruct *t, ...) {                  pa_tagstruct_put_cvolume(t, va_arg(va, pa_cvolume *));                  break; +            case PA_TAG_VOLUME: +                pa_tagstruct_put_volume(t, va_arg(va, pa_volume_t)); +                break; +              case PA_TAG_PROPLIST:                  pa_tagstruct_put_proplist(t, va_arg(va, pa_proplist *));                  break; @@ -738,6 +772,10 @@ int pa_tagstruct_get(pa_tagstruct *t, ...) {                  ret = pa_tagstruct_get_cvolume(t, va_arg(va, pa_cvolume *));                  break; +            case PA_TAG_VOLUME: +                ret = pa_tagstruct_get_volume(t, va_arg(va, pa_volume_t *)); +                break; +              case PA_TAG_PROPLIST:                  ret = pa_tagstruct_get_proplist(t, va_arg(va, pa_proplist *));                  break; diff --git a/src/pulsecore/tagstruct.h b/src/pulsecore/tagstruct.h index e7d07054..19288eeb 100644 --- a/src/pulsecore/tagstruct.h +++ b/src/pulsecore/tagstruct.h @@ -54,7 +54,8 @@ enum {      PA_TAG_USEC = 'U'  /* 64bit unsigned */,      PA_TAG_CHANNEL_MAP = 'm',      PA_TAG_CVOLUME = 'v', -    PA_TAG_PROPLIST = 'P' +    PA_TAG_PROPLIST = 'P', +    PA_TAG_VOLUME = 'V'  };  pa_tagstruct *pa_tagstruct_new(const uint8_t* data, size_t length); @@ -79,6 +80,7 @@ void pa_tagstruct_put_usec(pa_tagstruct*t, pa_usec_t u);  void pa_tagstruct_put_channel_map(pa_tagstruct *t, const pa_channel_map *map);  void pa_tagstruct_put_cvolume(pa_tagstruct *t, const pa_cvolume *cvolume);  void pa_tagstruct_put_proplist(pa_tagstruct *t, pa_proplist *p); +void pa_tagstruct_put_volume(pa_tagstruct *t, pa_volume_t volume);  int pa_tagstruct_get(pa_tagstruct *t, ...); @@ -95,6 +97,6 @@ int pa_tagstruct_get_usec(pa_tagstruct*t, pa_usec_t *u);  int pa_tagstruct_get_channel_map(pa_tagstruct *t, pa_channel_map *map);  int pa_tagstruct_get_cvolume(pa_tagstruct *t, pa_cvolume *v);  int pa_tagstruct_get_proplist(pa_tagstruct *t, pa_proplist *p); - +int pa_tagstruct_get_volume(pa_tagstruct *t, pa_volume_t *v);  #endif | 
