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- Documentation updates, renamed some _ methods because gtkdoc didn't want to generate docs for them.

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Original commit message from CVS:
- Documentation updates, renamed some _ methods because gtkdoc didn't
want to generate docs for them.
- Add some more events for future use.
This commit is contained in:
Wim Taymans 2002-07-13 23:12:22 +00:00
parent b43cf3886a
commit e9f84e2738
8 changed files with 127 additions and 45 deletions
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2
gst/elements/gstfilesrc.c
View file

@ -340,7 +340,7 @@ gst_filesrc_free_parent_mmap (GstBuffer *buf)
GST_BUFFER_DATA (buf) = NULL;
_gst_buffer_free (buf);
gst_buffer_default_free (buf);
}
static GstBuffer *

41
gst/gstbuffer.c
View file

@ -94,17 +94,15 @@ _gst_buffer_sub_free (GstBuffer *buffer)
}
/**
* _gst_buffer_free:
* gst_buffer_default_free:
* @buffer: a #GstBuffer to free
*
* Free the momory associated with the buffer including the buffer data,
* unless the GST_BUFFER_DONTFREE flags was set or the buffer data is NULL.
* This function is used by bufferpools.
*
* Returns: new #GstBuffer
*/
void
_gst_buffer_free (GstBuffer *buffer)
gst_buffer_default_free (GstBuffer *buffer)
{
/* free our data */
if (!GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_DONTFREE) && GST_BUFFER_DATA (buffer))
@ -121,7 +119,7 @@ _gst_buffer_free (GstBuffer *buffer)
}
/**
* _gst_buffer_copy:
* gst_buffer_default_copy:
* @buffer: a #GstBuffer to make a copy of
*
* Make a full newly allocated copy of the given buffer, data and all.
@ -130,7 +128,7 @@ _gst_buffer_free (GstBuffer *buffer)
* Returns: new #GstBuffer
*/
GstBuffer*
_gst_buffer_copy (GstBuffer *buffer)
gst_buffer_default_copy (GstBuffer *buffer)
{
GstBuffer *copy;
@ -172,8 +170,8 @@ gst_buffer_new (void)
_GST_DATA_INIT (GST_DATA (new),
_gst_buffer_type,
0,
(GstDataFreeFunction) _gst_buffer_free,
(GstDataCopyFunction) _gst_buffer_copy);
(GstDataFreeFunction) gst_buffer_default_free,
(GstDataCopyFunction) gst_buffer_default_copy);
GST_BUFFER_BUFFERPOOL (new) = NULL;
GST_BUFFER_POOL_PRIVATE (new) = NULL;
@ -183,6 +181,7 @@ gst_buffer_new (void)
/**
* gst_buffer_new_and_alloc:
* @size: the size of the buffer and the memory to allocate
*
* Creates a newly allocated buffer with data of the given size.
*
@ -278,7 +277,7 @@ gst_buffer_create_sub (GstBuffer *parent, guint offset, guint size)
GST_DATA_FLAG_SHIFT (GST_BUFFER_SUBBUFFER) |
GST_DATA_FLAG_SHIFT (GST_DATA_READONLY),
(GstDataFreeFunction) _gst_buffer_sub_free,
(GstDataCopyFunction) _gst_buffer_copy);
(GstDataCopyFunction) gst_buffer_default_copy);
GST_BUFFER_OFFSET (buffer) = parent_offset + offset;
GST_BUFFER_TIMESTAMP (buffer) = -1;
@ -302,7 +301,7 @@ gst_buffer_create_sub (GstBuffer *parent, guint offset, guint size)
* buffers. The original source buffers will not be modified or
* unref'd.
*
* Internally is nothing more than a specialized gst_buffer_span,
* Internally is nothing more than a specialized gst_buffer_span(),
* so the same optimizations can occur.
*
* Returns: a new #GstBuffer that's the concatenation of the source buffers
@ -322,7 +321,7 @@ gst_buffer_merge (GstBuffer *buf1, GstBuffer *buf2)
* @buf1: first source buffer
* @buf2: second source buffer
*
* Determines whether a gst_buffer_span is free (as in free beer),
* Determines whether a gst_buffer_span() is free (as in free beer),
* or requires a memcpy.
*
* Returns: TRUE if the buffers are contiguous, FALSE if a copy would be required.
@ -354,7 +353,8 @@ gst_buffer_is_span_fast (GstBuffer *buf1, GstBuffer *buf2)
*
* If the two source buffers are children of the same larger buffer,
* and are contiguous, the new buffer will be a child of the shared
* parent, and thus no copying is necessary.
* parent, and thus no copying is necessary. you can use
* gst_buffer_is_span_fast() to determine if a memcpy will be needed.
*
* Returns: a new #GstBuffer that spans the two source buffers
*/
@ -368,7 +368,7 @@ gst_buffer_span (GstBuffer *buf1, guint32 offset, GstBuffer *buf2, guint32 len)
g_return_val_if_fail (len > 0, NULL);
/* if the two buffers have the same parent and are adjacent */
if (gst_buffer_is_span_fast(buf1,buf2)) {
if (gst_buffer_is_span_fast (buf1, buf2)) {
GstBuffer *parent = GST_BUFFER (buf1->pool_private);
/* we simply create a subbuffer of the common parent */
newbuf = gst_buffer_create_sub (parent, buf1->data - parent->data + offset, len);
@ -386,6 +386,9 @@ gst_buffer_span (GstBuffer *buf1, guint32 offset, GstBuffer *buf2, guint32 len)
/* copy the second buffer's data across */
memcpy (newbuf->data + (buf1->size - offset), buf2->data, len - (buf1->size - offset));
}
/* if the offset is 0, the new buffer has the same timestamp as buf1 */
if (offset == 0)
GST_BUFFER_TIMESTAMP (newbuf) = GST_BUFFER_TIMESTAMP (buf1);
return newbuf;
}
@ -393,7 +396,8 @@ gst_buffer_span (GstBuffer *buf1, guint32 offset, GstBuffer *buf2, guint32 len)
static void
_gst_buffer_pool_free (GstBufferPool *pool)
{
_gst_data_free (GST_DATA (pool));
_GST_DATA_DISPOSE (GST_DATA (pool));
g_free (pool);
_gst_buffer_pool_live--;
}
@ -498,6 +502,15 @@ gst_buffer_pool_get_user_data (GstBufferPool *pool)
return pool->user_data;
}
/**
* gst_buffer_pool_get_default:
* @size: The size of the buffers to allocate from this pool
* @numbuffers: The number of buffer to preallocate in the pool
*
* Create a pool with buffers of the given size.
*
* Returns: A new bufferpool to create buffers of the given size.
*/
/* FIXME */
GstBufferPool*
gst_buffer_pool_get_default (guint size, guint numbuffers)

31
gst/gstbuffer.h
View file

@ -110,11 +110,19 @@ struct _GstBufferPool {
/*< private >*/
void _gst_buffer_initialize (void);
void _gst_buffer_free (GstBuffer *buf);
GstBuffer* _gst_buffer_copy (GstBuffer *buf);
/* function used by subclasses and bufferpools */
void gst_buffer_default_free (GstBuffer *buffer);
GstBuffer* gst_buffer_default_copy (GstBuffer *buffer);
void gst_buffer_print_stats (void);
/* allocation */
GstBuffer* gst_buffer_new (void);
GstBuffer* gst_buffer_new_and_alloc (guint size);
/* creating a new buffer from a pool */
GstBuffer* gst_buffer_new_from_pool (GstBufferPool *pool, guint64 offset, guint size);
/* refcounting */
#define gst_buffer_ref(buf) GST_BUFFER (gst_data_ref (GST_DATA (buf)))
#define gst_buffer_ref_by_count(buf,c) GST_BUFFER (gst_data_ref_by_count (GST_DATA (buf), c))
@ -124,13 +132,6 @@ void gst_buffer_print_stats (void);
#define gst_buffer_copy_on_write(buffer) GST_BUFFER (gst_data_copy_on_write (GST_DATA (buffer)))
#define gst_buffer_free(buffer) gst_data_free (GST_DATA (buffer))
/* allocation */
GstBuffer* gst_buffer_new (void);
GstBuffer* gst_buffer_new_and_alloc (guint size);
/* creating a new buffer from a pool */
GstBuffer* gst_buffer_new_from_pool (GstBufferPool *pool, guint64 offset, guint size);
/* creating a subbuffer */
GstBuffer* gst_buffer_create_sub (GstBuffer *parent, guint offset, guint size);
@ -143,7 +144,7 @@ GstBuffer* gst_buffer_span (GstBuffer *buf1, guint32 offset, GstBuffer *buf2,
/* creating a new buffer pools */
GstBufferPool* gst_buffer_pool_new (GstDataFreeFunction free,
GstDataCopyFunction copy,
GstBufferPoolBufferNewFunction buffer_create,
GstBufferPoolBufferNewFunction buffer_new,
GstBufferPoolBufferCopyFunction buffer_copy,
GstBufferPoolBufferFreeFunction buffer_free,
gpointer user_data);
@ -151,11 +152,9 @@ GstBufferPool* gst_buffer_pool_new (GstDataFreeFunction free,
gboolean gst_buffer_pool_is_active (GstBufferPool *pool);
void gst_buffer_pool_set_active (GstBufferPool *pool, gboolean active);
GstBufferPool* gst_buffer_pool_get_default (guint size, guint numbuffers);
#define gst_buffer_pool_ref(buf) GST_BUFFER_POOL (gst_data_ref (GST_DATA (buf)))
#define gst_buffer_pool_ref_by_count(buf,c) GST_BUFFER_POOL (gst_data_ref_by_count (GST_DATA (buf), c))
#define gst_buffer_pool_unref(buf) gst_data_unref (GST_DATA (buf))
#define gst_buffer_pool_ref(pool) GST_BUFFER_POOL (gst_data_ref (GST_DATA (pool)))
#define gst_buffer_pool_ref_by_count(pool,c) GST_BUFFER_POOL (gst_data_ref_by_count (GST_DATA (pool), c))
#define gst_buffer_pool_unref(pool) gst_data_unref (GST_DATA (pool))
/* bufferpool operations */
#define gst_buffer_pool_copy(pool) GST_BUFFER_POOL (gst_data_copy (GST_DATA (pool)))
@ -165,6 +164,8 @@ GstBufferPool* gst_buffer_pool_get_default (guint size, guint numbuffers);
void gst_buffer_pool_set_user_data (GstBufferPool *pool, gpointer user_data);
gpointer gst_buffer_pool_get_user_data (GstBufferPool *pool);
/* implement me */
GstBufferPool* gst_buffer_pool_get_default (guint size, guint numbuffers);
G_END_DECLS

43
gst/gstdata.c
View file

@ -28,24 +28,56 @@
#include "gstdata_private.h"
#include "gstlog.h"
/**
* gst_data_init:
* @data: a #GstData to initialize
* @type: the type of this data
* @flags: flags for this data
* @free: a free function
* @copy: a copy function
*
* Initialize the given data structure with the given parameters. The free and copy
* function will be called when this data is freed or copied respectively.
*/
void
_gst_data_init (GstData *data, GType type, guint16 flags, GstDataFreeFunction free, GstDataCopyFunction copy)
gst_data_init (GstData *data, GType type, guint16 flags, GstDataFreeFunction free, GstDataCopyFunction copy)
{
_GST_DATA_INIT (data, type, flags, free, copy);
}
/**
* gst_data_copy_into:
* @data: a #GstData to copy
* @target: the target #GstData to copy into
*
* Copy the GstData into the specified target GstData structure.
* Thos method is mainly used by subclasses when they want to copy
* the relevant GstData info.
*/
void
_gst_data_free (GstData *data)
gst_data_copy_into (const GstData *data, GstData *target)
{
}
/**
* gst_data_dispose:
* @data: a #GstData to dispose
*
* Free all the resources allocated in the gst_data_init() function,
* mainly used by subclass implementors.
*/
void
gst_data_dispose (GstData *data)
{
_GST_DATA_DISPOSE (data);
g_free (data);
}
/**
* gst_data_copy:
* @data: a #GstData to copy
*
* Copies the given #GstData
* Copies the given #GstData. This function will call the custom subclass
* copy function or return NULL if no function was provided by the subclass.
*
* Returns: a copy of the data or NULL if the data cannot be copied.
*/
@ -88,7 +120,8 @@ gst_data_copy_on_write (const GstData *data)
* gst_data_free:
* @data: a #GstData to free
*
* Frees the given #GstData
* Frees the given #GstData. This function will call the custom free function
* provided by the subclass.
*/
void
gst_data_free (GstData *data)

8
gst/gstdata.h
View file

@ -75,15 +75,15 @@ struct _GstData {
/* utility function pointers, can override default */
GstDataFreeFunction free; /* free the data */
GstDataCopyFunction copy; /* free the data */
GstDataCopyFunction copy; /* copy the data */
};
/* function used by subclasses only */
void _gst_data_init (GstData *data, GType type, guint16 flags,
void gst_data_init (GstData *data, GType type, guint16 flags,
GstDataFreeFunction free,
GstDataCopyFunction copy);
void _gst_data_free (GstData *data);
GstData* _gst_data_copy (const GstData *data);
void gst_data_dispose (GstData *data);
void gst_data_copy_into (const GstData *data, GstData *target);
/* basic operations on data */
GstData* gst_data_copy (const GstData *data);

27
gst/gstevent.c
View file

@ -44,9 +44,9 @@ _gst_event_initialize (void)
}
/**
* gst_buffer_print_stats:
* gst_event_print_stats:
*
* Logs statistics about live buffers (using g_log).
* Logs statistics about live events (using g_log).
*/
void
gst_event_print_stats (void)
@ -232,4 +232,27 @@ gst_event_new_size (GstFormat format, gint64 value)
}
/**
* gst_event_new_segment_seek:
* @type: The type of the seek event
* @start: The start offset of the seek
* @stop: The stop offset of the seek
*
* Allocate a new segment seek event with the given parameters.
*
* Returns: A new segment seek event.
*/
GstEvent*
gst_event_new_segment_seek (GstSeekType type, gint64 start, gint64 stop)
{
GstEvent *event;
event = gst_event_new (GST_EVENT_SEEK_SEGMENT);
GST_EVENT_SEEK_TYPE (event) = type;
GST_EVENT_SEEK_OFFSET (event) = start;
GST_EVENT_SEEK_ENDOFFSET (event) = stop;
return event;
}

18
gst/gstevent.h
View file

@ -40,8 +40,11 @@ typedef enum {
GST_EVENT_NEW_MEDIA,
GST_EVENT_QOS,
GST_EVENT_SEEK,
GST_EVENT_FILLER,
GST_EVENT_SIZE
GST_EVENT_SEEK_SEGMENT,
GST_EVENT_SEGMENT_DONE,
GST_EVENT_SIZE,
GST_EVENT_RATE,
GST_EVENT_FILLER
} GstEventType;
extern GType _gst_event_type;
@ -69,7 +72,8 @@ typedef enum {
GST_SEEK_FLAG_FLUSH = (1 << (GST_SEEK_FLAGS_SHIFT + 0)),
GST_SEEK_FLAG_ACCURATE = (1 << (GST_SEEK_FLAGS_SHIFT + 1)),
GST_SEEK_FLAG_KEY_UNIT = (1 << (GST_SEEK_FLAGS_SHIFT + 2))
GST_SEEK_FLAG_KEY_UNIT = (1 << (GST_SEEK_FLAGS_SHIFT + 2)),
GST_SEEK_FLAG_SEGMENT_LOOP = (1 << (GST_SEEK_FLAGS_SHIFT + 3))
} GstSeekType;
typedef enum {
@ -88,6 +92,7 @@ typedef struct
#define GST_EVENT_SEEK_METHOD(event) (GST_EVENT_SEEK_TYPE(event) & GST_SEEK_METHOD_MASK)
#define GST_EVENT_SEEK_FLAGS(event) (GST_EVENT_SEEK_TYPE(event) & GST_SEEK_FLAGS_MASK)
#define GST_EVENT_SEEK_OFFSET(event) (GST_EVENT(event)->event_data.seek.offset)
#define GST_EVENT_SEEK_ENDOFFSET(event) (GST_EVENT(event)->event_data.seek.endoffset)
#define GST_EVENT_SEEK_ACCURACY(event) (GST_EVENT(event)->event_data.seek.accuracy)
#define GST_EVENT_DISCONT_NEW_MEDIA(event) (GST_EVENT(event)->event_data.discont.new_media)
@ -97,6 +102,8 @@ typedef struct
#define GST_EVENT_SIZE_FORMAT(event) (GST_EVENT(event)->event_data.size.format)
#define GST_EVENT_SIZE_VALUE(event) (GST_EVENT(event)->event_data.size.value)
#define GST_EVENT_RATE_VALUE(event) (GST_EVENT(event)->event_data.rate.value)
struct _GstEvent {
GstData data;
@ -108,6 +115,7 @@ struct _GstEvent {
struct {
GstSeekType type;
gint64 offset;
gint64 endoffset;
GstSeekAccuracy accuracy;
} seek;
struct {
@ -119,6 +127,9 @@ struct _GstEvent {
GstFormat format;
gint64 value;
} size;
struct {
gdouble value;
} rate;
} event_data;
};
@ -137,6 +148,7 @@ GstEvent* gst_event_new (GstEventType type);
/* seek event */
GstEvent* gst_event_new_seek (GstSeekType type, gint64 offset);
GstEvent* gst_event_new_segment_seek (GstSeekType type, gint64 start, gint64 stop);
/* size events */
GstEvent* gst_event_new_size (GstFormat format, gint64 value);

2
plugins/elements/gstfilesrc.c
View file

@ -340,7 +340,7 @@ gst_filesrc_free_parent_mmap (GstBuffer *buf)
GST_BUFFER_DATA (buf) = NULL;
_gst_buffer_free (buf);
gst_buffer_default_free (buf);
}
static GstBuffer *