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gstbuffer: add GST_BUFFER_FLAG_NON_DROPPABLE
This can be used to identify buffers for which a higher percentage of redundancy should be allocated when performing forward error correction, or to prevent still video frames from being dropped by elements due to QoS. https://bugzilla.gnome.org/show_bug.cgi?id=793008
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1 changed files with 48 additions and 42 deletions
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@ -181,55 +181,61 @@ typedef struct _GstBufferPool GstBufferPool;
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/**
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/**
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* GstBufferFlags:
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* GstBufferFlags:
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* @GST_BUFFER_FLAG_LIVE: the buffer is live data and should be discarded in
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* @GST_BUFFER_FLAG_LIVE: the buffer is live data and should be discarded in
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* the PAUSED state.
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* the PAUSED state.
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* @GST_BUFFER_FLAG_DECODE_ONLY: the buffer contains data that should be dropped
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* @GST_BUFFER_FLAG_DECODE_ONLY: the buffer contains data that should be dropped
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* because it will be clipped against the segment
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* because it will be clipped against the segment
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* boundaries or because it does not contain data
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* boundaries or because it does not contain data
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* that should be shown to the user.
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* that should be shown to the user.
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* @GST_BUFFER_FLAG_DISCONT: the buffer marks a data discontinuity in the stream.
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* @GST_BUFFER_FLAG_DISCONT: the buffer marks a data discontinuity in the stream.
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* This typically occurs after a seek or a dropped buffer
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* This typically occurs after a seek or a dropped buffer
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* from a live or network source.
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* from a live or network source.
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* @GST_BUFFER_FLAG_RESYNC: the buffer timestamps might have a discontinuity
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* @GST_BUFFER_FLAG_RESYNC: the buffer timestamps might have a discontinuity
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* and this buffer is a good point to resynchronize.
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* and this buffer is a good point to resynchronize.
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* @GST_BUFFER_FLAG_CORRUPTED: the buffer data is corrupted.
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* @GST_BUFFER_FLAG_CORRUPTED: the buffer data is corrupted.
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* @GST_BUFFER_FLAG_MARKER: the buffer contains a media specific marker. for
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* @GST_BUFFER_FLAG_MARKER: the buffer contains a media specific marker. for
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* video this is typically the end of a frame boundary, for audio
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* video this is typically the end of a frame boundary, for audio
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* this is usually the start of a talkspurt.
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* this is usually the start of a talkspurt.
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* @GST_BUFFER_FLAG_HEADER: the buffer contains header information that is
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* @GST_BUFFER_FLAG_HEADER: the buffer contains header information that is
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* needed to decode the following data.
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* needed to decode the following data.
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* @GST_BUFFER_FLAG_GAP: the buffer has been created to fill a gap in the
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* @GST_BUFFER_FLAG_GAP: the buffer has been created to fill a gap in the
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* stream and contains media neutral data (elements can
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* stream and contains media neutral data (elements can
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* switch to optimized code path that ignores the buffer
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* switch to optimized code path that ignores the buffer
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* content).
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* content).
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* @GST_BUFFER_FLAG_DROPPABLE: the buffer can be dropped without breaking the
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* @GST_BUFFER_FLAG_DROPPABLE: the buffer can be dropped without breaking the
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* stream, for example to reduce bandwidth.
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* stream, for example to reduce bandwidth.
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* @GST_BUFFER_FLAG_DELTA_UNIT: this unit cannot be decoded independently.
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* @GST_BUFFER_FLAG_DELTA_UNIT: this unit cannot be decoded independently.
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* @GST_BUFFER_FLAG_TAG_MEMORY: this flag is set when memory of the buffer
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* @GST_BUFFER_FLAG_TAG_MEMORY: this flag is set when memory of the buffer
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* is added/removed
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* is added/removed
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* @GST_BUFFER_FLAG_SYNC_AFTER: Elements which write to disk or permanent
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* @GST_BUFFER_FLAG_SYNC_AFTER: Elements which write to disk or permanent
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* storage should ensure the data is synced after
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* storage should ensure the data is synced after
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* writing the contents of this buffer. (Since 1.6)
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* writing the contents of this buffer. (Since 1.6)
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* @GST_BUFFER_FLAG_LAST: additional media specific flags can be added starting from
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* @GST_BUFFER_FLAG_LAST: additional media specific flags can be added starting from
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* this flag.
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* this flag.
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* @GST_BUFFER_FLAG_NON_DROPPABLE: This buffer is important and should not be dropped.
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* This can be used to mark important buffers, e.g. to flag
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* RTP packets carrying keyframes or codec setup data for RTP
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* Forward Error Correction purposes, or to prevent still video
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* frames from being dropped by elements due to QoS. (Since 1.14)
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*
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*
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* A set of buffer flags used to describe properties of a #GstBuffer.
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* A set of buffer flags used to describe properties of a #GstBuffer.
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*/
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*/
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typedef enum {
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typedef enum {
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GST_BUFFER_FLAG_LIVE = (GST_MINI_OBJECT_FLAG_LAST << 0),
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GST_BUFFER_FLAG_LIVE = (GST_MINI_OBJECT_FLAG_LAST << 0),
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GST_BUFFER_FLAG_DECODE_ONLY = (GST_MINI_OBJECT_FLAG_LAST << 1),
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GST_BUFFER_FLAG_DECODE_ONLY = (GST_MINI_OBJECT_FLAG_LAST << 1),
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GST_BUFFER_FLAG_DISCONT = (GST_MINI_OBJECT_FLAG_LAST << 2),
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GST_BUFFER_FLAG_DISCONT = (GST_MINI_OBJECT_FLAG_LAST << 2),
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GST_BUFFER_FLAG_RESYNC = (GST_MINI_OBJECT_FLAG_LAST << 3),
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GST_BUFFER_FLAG_RESYNC = (GST_MINI_OBJECT_FLAG_LAST << 3),
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GST_BUFFER_FLAG_CORRUPTED = (GST_MINI_OBJECT_FLAG_LAST << 4),
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GST_BUFFER_FLAG_CORRUPTED = (GST_MINI_OBJECT_FLAG_LAST << 4),
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GST_BUFFER_FLAG_MARKER = (GST_MINI_OBJECT_FLAG_LAST << 5),
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GST_BUFFER_FLAG_MARKER = (GST_MINI_OBJECT_FLAG_LAST << 5),
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GST_BUFFER_FLAG_HEADER = (GST_MINI_OBJECT_FLAG_LAST << 6),
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GST_BUFFER_FLAG_HEADER = (GST_MINI_OBJECT_FLAG_LAST << 6),
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GST_BUFFER_FLAG_GAP = (GST_MINI_OBJECT_FLAG_LAST << 7),
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GST_BUFFER_FLAG_GAP = (GST_MINI_OBJECT_FLAG_LAST << 7),
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GST_BUFFER_FLAG_DROPPABLE = (GST_MINI_OBJECT_FLAG_LAST << 8),
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GST_BUFFER_FLAG_DROPPABLE = (GST_MINI_OBJECT_FLAG_LAST << 8),
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GST_BUFFER_FLAG_DELTA_UNIT = (GST_MINI_OBJECT_FLAG_LAST << 9),
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GST_BUFFER_FLAG_DELTA_UNIT = (GST_MINI_OBJECT_FLAG_LAST << 9),
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GST_BUFFER_FLAG_TAG_MEMORY = (GST_MINI_OBJECT_FLAG_LAST << 10),
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GST_BUFFER_FLAG_TAG_MEMORY = (GST_MINI_OBJECT_FLAG_LAST << 10),
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GST_BUFFER_FLAG_SYNC_AFTER = (GST_MINI_OBJECT_FLAG_LAST << 11),
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GST_BUFFER_FLAG_SYNC_AFTER = (GST_MINI_OBJECT_FLAG_LAST << 11),
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GST_BUFFER_FLAG_NON_DROPPABLE = (GST_MINI_OBJECT_FLAG_LAST << 12),
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GST_BUFFER_FLAG_LAST = (GST_MINI_OBJECT_FLAG_LAST << 16)
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GST_BUFFER_FLAG_LAST = (GST_MINI_OBJECT_FLAG_LAST << 16)
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} GstBufferFlags;
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} GstBufferFlags;
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/**
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/**
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