gstmpegvideometa

Functions

gst_buffer_add_mpeg_video_meta 

GstMpegVideoMeta *
gst_buffer_add_mpeg_video_meta (GstBuffer * buffer,
                                GstMpegVideoSequenceHdr * seq_hdr,
                                GstMpegVideoSequenceExt * seq_ext,
                                GstMpegVideoSequenceDisplayExt * disp_ext,
                                GstMpegVideoPictureHdr * pic_hdr,
                                GstMpegVideoPictureExt * pic_ext,
                                GstMpegVideoQuantMatrixExt * quant_ext)

Creates and adds a GstMpegVideoMeta to a buffer.

Provided structures must either be NULL or GSlice-allocated.

Parameters:

buffer –

a GstBuffer

seq_hdr –
No description available
seq_ext –
No description available
disp_ext –
No description available
pic_hdr –
No description available
pic_ext –
No description available
quant_ext –
No description available
Returns (GstMpegVideoMeta *) –

a newly created GstMpegVideoMeta

Since : 1.2

gst_mpeg_video_meta_api_get_type 

GType
gst_mpeg_video_meta_api_get_type ()
Returns (GType) –
No description available

gst_mpeg_video_meta_get_info 

GstMetaInfo *
gst_mpeg_video_meta_get_info ()
Returns (GstMetaInfo *) –
No description available

Structures

GstMpegVideoMeta 

struct _GstMpegVideoMeta {
  GstMeta            meta;

  GstMpegVideoSequenceHdr        *sequencehdr;
  GstMpegVideoSequenceExt        *sequenceext;
  GstMpegVideoSequenceDisplayExt *sequencedispext;
  GstMpegVideoPictureHdr         *pichdr;
  GstMpegVideoPictureExt         *picext;
  GstMpegVideoQuantMatrixExt     *quantext;

  guint num_slices;
  gsize slice_offset;
};

Extra buffer metadata describing the contents of a MPEG1/2 Video frame

Can be used by elements (mainly decoders) to avoid having to parse Mpeg video 1/2 packets if it can be done upstream.

The various fields are only valid during the lifetime of the GstMpegVideoMeta. If elements wish to use those for longer, they are required to make a copy.

Fields

meta (GstMeta) –

parent GstMeta

sequencehdr (GstMpegVideoSequenceHdr *) –

the GstMpegVideoSequenceHdr if present in the buffer

sequenceext (GstMpegVideoSequenceExt *) –

the GstMpegVideoSequenceExt if present in the buffer

sequencedispext (GstMpegVideoSequenceDisplayExt *) –

the GstMpegVideoSequenceDisplayExt if present in the buffer.

pichdr (GstMpegVideoPictureHdr *) –

the GstMpegVideoPictureHdr if present in the buffer.

picext (GstMpegVideoPictureExt *) –

the GstMpegVideoPictureExt if present in the buffer.

quantext (GstMpegVideoQuantMatrixExt *) –

the GstMpegVideoQuantMatrixExt if present in the buffer

num_slices (guint) –
No description available
slice_offset (gsize) –
No description available

Since : 1.2

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