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buffer: improve flags

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Rename DROP to DECODE_ONLY.
Add DROPPABLE flag to mark buffers that can be dropped to save bandwidth without
destroying the stream.
This commit is contained in:
Wim Taymans 2011-08-26 14:17:23 +02:00
parent 4b3ffbc14d
commit cc1686352d
1 changed files with 39 additions and 36 deletions
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75
gst/gstbuffer.h
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@ -159,48 +159,51 @@ typedef struct _GstBufferPool GstBufferPool;
/**
* GstBufferFlags:
* @GST_BUFFER_FLAG_LIVE: the buffer is live data and should be discarded in
* the PAUSED state.
* @GST_BUFFER_FLAG_DROP: the buffer contains data that should be dropped
* because it will be clipped against the segment
* boundaries or because it does not contain data
* that should be shown to the user.
* @GST_BUFFER_FLAG_DISCONT: the buffer marks a data discontinuity in the stream.
* This typically occurs after a seek or a dropped buffer
* from a live or network source.
* @GST_BUFFER_FLAG_RESYNC: the buffer timestamp might have a discontinuity
* and this buffer is a good point to resynchronize.
* @GST_BUFFER_FLAG_CORRUPTED: the buffer data is corrupted.
* @GST_BUFFER_FLAG_MARKER: the buffer contains a media specific marker. for
* video this is typically the end of a frame boundary, for audio
* this is usually the end of a talkspurt.
* @GST_BUFFER_FLAG_HEADER: the buffer contains header information that is
* needed to decode the following data
* @GST_BUFFER_FLAG_GAP: the buffer has been created to fill a gap in the
* stream and contains media neutral data (elements can
* switch to optimized code path that ignores the buffer
* content).
* @GST_BUFFER_FLAG_DELTA_UNIT: this unit cannot be decoded independently.
* @GST_BUFFER_FLAG_IN_CAPS: the buffer has been added as a field in a #GstCaps.
* @GST_BUFFER_FLAG_LIVE: the buffer is live data and should be discarded in
* the PAUSED state.
* @GST_BUFFER_FLAG_DECODE_ONLY: the buffer contains data that should be dropped
* because it will be clipped against the segment
* boundaries or because it does not contain data
* that should be shown to the user.
* @GST_BUFFER_FLAG_DISCONT: the buffer marks a data discontinuity in the stream.
* This typically occurs after a seek or a dropped buffer
* from a live or network source.
* @GST_BUFFER_FLAG_RESYNC: the buffer timestamp might have a discontinuity
* and this buffer is a good point to resynchronize.
* @GST_BUFFER_FLAG_CORRUPTED: the buffer data is corrupted.
* @GST_BUFFER_FLAG_MARKER: the buffer contains a media specific marker. for
* video this is typically the end of a frame boundary, for audio
* this is usually the end of a talkspurt.
* @GST_BUFFER_FLAG_HEADER: the buffer contains header information that is
* needed to decode the following data
* @GST_BUFFER_FLAG_GAP: the buffer has been created to fill a gap in the
* stream and contains media neutral data (elements can
* switch to optimized code path that ignores the buffer
* content).
* @GST_BUFFER_FLAG_DROPPABLE: the buffer can be dropped without breaking the
* stream, for example to reduce bandwidth.
* @GST_BUFFER_FLAG_DELTA_UNIT: this unit cannot be decoded independently.
* @GST_BUFFER_FLAG_IN_CAPS: the buffer has been added as a field in a #GstCaps.
*
* @GST_BUFFER_FLAG_LAST: additional media specific flags can be added starting from
* this flag.
* @GST_BUFFER_FLAG_LAST: additional media specific flags can be added starting from
* this flag.
*
* A set of buffer flags used to describe properties of a #GstBuffer.
*/
typedef enum {
GST_BUFFER_FLAG_LIVE = (GST_MINI_OBJECT_FLAG_LAST << 0),
GST_BUFFER_FLAG_DROP = (GST_MINI_OBJECT_FLAG_LAST << 1),
GST_BUFFER_FLAG_DISCONT = (GST_MINI_OBJECT_FLAG_LAST << 2),
GST_BUFFER_FLAG_RESYNC = (GST_MINI_OBJECT_FLAG_LAST << 3),
GST_BUFFER_FLAG_CORRUPTED = (GST_MINI_OBJECT_FLAG_LAST << 4),
GST_BUFFER_FLAG_MARKER = (GST_MINI_OBJECT_FLAG_LAST << 5),
GST_BUFFER_FLAG_HEADER = (GST_MINI_OBJECT_FLAG_LAST << 6),
GST_BUFFER_FLAG_GAP = (GST_MINI_OBJECT_FLAG_LAST << 7),
GST_BUFFER_FLAG_DELTA_UNIT = (GST_MINI_OBJECT_FLAG_LAST << 8),
GST_BUFFER_FLAG_IN_CAPS = (GST_MINI_OBJECT_FLAG_LAST << 9),
GST_BUFFER_FLAG_LIVE = (GST_MINI_OBJECT_FLAG_LAST << 0),
GST_BUFFER_FLAG_DECODE_ONLY = (GST_MINI_OBJECT_FLAG_LAST << 1),
GST_BUFFER_FLAG_DISCONT = (GST_MINI_OBJECT_FLAG_LAST << 2),
GST_BUFFER_FLAG_RESYNC = (GST_MINI_OBJECT_FLAG_LAST << 3),
GST_BUFFER_FLAG_CORRUPTED = (GST_MINI_OBJECT_FLAG_LAST << 4),
GST_BUFFER_FLAG_MARKER = (GST_MINI_OBJECT_FLAG_LAST << 5),
GST_BUFFER_FLAG_HEADER = (GST_MINI_OBJECT_FLAG_LAST << 6),
GST_BUFFER_FLAG_GAP = (GST_MINI_OBJECT_FLAG_LAST << 7),
GST_BUFFER_FLAG_DROPPABLE = (GST_MINI_OBJECT_FLAG_LAST << 8),
GST_BUFFER_FLAG_DELTA_UNIT = (GST_MINI_OBJECT_FLAG_LAST << 9),
GST_BUFFER_FLAG_IN_CAPS = (GST_MINI_OBJECT_FLAG_LAST << 10),
GST_BUFFER_FLAG_LAST = (GST_MINI_OBJECT_FLAG_LAST << 16)
GST_BUFFER_FLAG_LAST = (GST_MINI_OBJECT_FLAG_LAST << 20)
} GstBufferFlags;
/**