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-rw-r--r--lv2/lv2plug.in/ns/ext/buf-size/buf-size.h78
-rw-r--r--lv2/lv2plug.in/ns/ext/buf-size/buf-size.ttl40
2 files changed, 14 insertions, 104 deletions
diff --git a/lv2/lv2plug.in/ns/ext/buf-size/buf-size.h b/lv2/lv2plug.in/ns/ext/buf-size/buf-size.h
index 36884f3..20cd8fd 100644
--- a/lv2/lv2plug.in/ns/ext/buf-size/buf-size.h
+++ b/lv2/lv2plug.in/ns/ext/buf-size/buf-size.h
@@ -17,14 +17,9 @@
#ifndef LV2_BUF_SIZE_H
#define LV2_BUF_SIZE_H
-#include <stdint.h>
-
-#include "lv2/lv2plug.in/ns/ext/urid/urid.h"
-
#define LV2_BUF_SIZE_URI "http://lv2plug.in/ns/ext/buf-size"
#define LV2_BUF_SIZE_PREFIX LV2_BUF_SIZE_URI "#"
-#define LV2_BUF_SIZE__access LV2_BUF_SIZE_PREFIX "access"
#define LV2_BUF_SIZE__boundedBlockLength LV2_BUF_SIZE_PREFIX "boundedBlockLength"
#define LV2_BUF_SIZE__fixedBlockLength LV2_BUF_SIZE_PREFIX "fixedBlockLength"
#define LV2_BUF_SIZE__maxBlockLength LV2_BUF_SIZE_PREFIX "maxBlockLength"
@@ -32,77 +27,4 @@
#define LV2_BUF_SIZE__powerOf2BlockLength LV2_BUF_SIZE_PREFIX "powerOf2BlockLength"
#define LV2_BUF_SIZE__sequenceSize LV2_BUF_SIZE_PREFIX "sequenceSize"
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-typedef enum {
- LV2_BUF_SIZE_SUCCESS = 0, /**< Completed successfully. */
- LV2_BUF_SIZE_ERR_UNKNOWN = 1, /**< Unknown error. */
- LV2_BUF_SIZE_ERR_BAD_TYPE = 2 /**< Failed due to unsupported type. */
-} LV2_Buf_Size_Status;
-
-typedef void* LV2_Buf_Size_Access_Handle;
-
-/**
- The data for feature LV2_BUF_SIZE__access.
-*/
-typedef struct {
- /**
- Opaque host data.
- */
- LV2_Buf_Size_Access_Handle handle;
-
- /**
- The size of this struct.
-
- The host MUST set this to sizeof(LV2_Buf_Size_Feature).
- */
- uint32_t size;
-
- /**
- Get properties of the sample_count parameter of LV2_Descriptor::run().
-
- @param handle The handle field of this struct.
- @param min Set to the minimum block length.
- @param max Set to the maximum block length, or 0 for unlimited.
- @param multiple_of Set to a number the block length will always be a
- multiple of, possibly 1 for arbitrary block lengths.
- @param power_of Set to a number the block length will always be a power
- of, or 0 if no such restriction applies.
- @return 0 for success, otherwise an error code.
- */
- LV2_Buf_Size_Status
- (*get_sample_count)(LV2_Buf_Size_Access_Handle handle,
- uint32_t* min,
- uint32_t* max,
- uint32_t* multiple_of,
- uint32_t* power_of);
-
- /**
- Get the size for buffers of a given type.
-
- This function is useful for plugins that need to allocate auxiliary
- buffers for data types other than audio. A typical use case is to first
- get the maximum block length with get_sample_count(), then determine the
- space required for a Sequence by calling this function with type @ref
- LV2_ATOM__Sequence.
-
- @param handle The handle field of this struct.
- @param buf_size Set to the requested buffer size, or 0 if unknown.
- @param type The type of buffer.
- @param sample_count The duration of time the buffer must represent.
- @return The space required for the buffer, or 0 if unknown.
- */
- LV2_Buf_Size_Status
- (*get_buf_size)(LV2_Buf_Size_Access_Handle handle,
- uint32_t* buf_size,
- LV2_URID type,
- uint32_t sample_count);
-} LV2_Buf_Size_Access;
-
-#ifdef __cplusplus
-} /* extern "C" */
-#endif
-
#endif /* LV2_BUF_SIZE_H */
diff --git a/lv2/lv2plug.in/ns/ext/buf-size/buf-size.ttl b/lv2/lv2plug.in/ns/ext/buf-size/buf-size.ttl
index 1c9b508..9313b11 100644
--- a/lv2/lv2plug.in/ns/ext/buf-size/buf-size.ttl
+++ b/lv2/lv2plug.in/ns/ext/buf-size/buf-size.ttl
@@ -16,8 +16,9 @@ block length (the sample_count parameter of LV2_Descriptor::run) and
port buffer sizes, as well as several features which can be used to restrict
the block length.</p>
-<p>The host provides access to all the relevant information via the
-bufsz:access feature.</p>
+<p>This extension only defines data-only features and properties and has no C
+API of its own. The host provides all the relevant information to the plugin as <a
+href="http://lv2plug.in/ns/ext/options#options">options</a></p>
<p>To require restrictions on the block length, plugins can require additional
features: bufsz:boundedBlockLength, bufsz:powerOf2BlockLength, and
@@ -25,36 +26,25 @@ bufsz:fixedBlockLength. These features are data-only, that is they merely
indicate a restriction and do not carry any data or API.</p>
""" .
-bufsz:access
- a lv2:Feature ;
- lv2:documentation """
-<p>The feature that provides access to buffer size information. This feature
-is the only one in this extension which carries data: to implement it the host
-passes a feature with URI LV2_BUF_SIZE__access and an LV2_Buf_Size_Access
-for data, which provides functions the plugin can call to investigate the
-buffer size.</p>
-""" .
-
bufsz:boundedBlockLength
a lv2:Feature ;
lv2:documentation """
-<p>A feature that indicates the host will provide a minimum and maximum block
-length via LV2_Buf_Size_Access::get_sample_count(). Plugins that copy data
-from audio inputs can require this feature to ensure they know how much space
-is required for auxilliary buffers. Note the minimum may be zero, this feature
-is mainly useful to ensure a maximum is available.</p>
+<p>A feature that indicates the host will provide both the bufsz:minBlockLength
+and bufsz:maxBlockLength options to the plugin. Plugins that copy data from
+audio inputs can require this feature to ensure they know how much space is
+required for auxiliary buffers. Note the minimum may be zero, this feature is
+mainly useful to ensure a maximum is available.</p>
<p>All hosts SHOULD support this feature, since it is simple to support and
-necessary for plugins to create auxiliary buffers.</p>
+necessary for any plugins that may need to copy the input.</p>
""" .
bufsz:fixedBlockLength
a lv2:Feature ;
lv2:documentation """
<p>A feature that indicates the host will always call LV2_Descriptor::run()
-with the same value for sample_count. If available,
-LV2_Buf_Size_Access::get_sample_count() must report this value for both min
-and max.</p>
+with the same value for sample_count. This length MUST be provided as the
+value of both the bufsz:minBlockLength and bufsz:maxBlockLength options.</p>
<p>Note that requiring this feature may severely limit the number of hosts
capable of running the plugin.</p>
@@ -64,11 +54,9 @@ bufsz:powerOf2BlockLength
a lv2:Feature ;
lv2:documentation """
<p>A feature that indicates the host will always call LV2_Descriptor::run()
-with a power of two sample_count. If available,
-LV2_Buf_Size_Access::get_sample_count() must report this value for both min
-and max. Note this feature does not guarantee the value is the same each call,
-to ensure that the plugin must require both this feature and
-bufsz:fixedBlockLength.</p>
+with a power of two sample_count. Note that this feature does not guarantee
+the value is the same each call, to guarantee a fixed power of two block length
+plugins must require both this feature and bufsz:fixedBlockLength.</p>
<p>Note that requiring this feature may severely limit the number of hosts
capable of running the plugin.</p>