h264parse

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstBaseParse
                    ╰──h264parse

Factory details

sink

video/x-h264:

src

video/x-h264:
         parsed: true
  stream-format: { (string)avc, (string)avc3, (string)byte-stream }
      alignment: { (string)au, (string)nal }

config-interval

“config-interval” gint

Send SPS and PPS Insertion Interval in seconds (sprop parameter sets will be multiplexed in the data stream when detected.) (0 = disabled, -1 = send with every IDR frame)

Flags : Read / Write / Construct

Default value : 0

insert-cc

“insert-cc” H264parse-ccmode *

Inserts closed captions from GstVideoCaptionMeta into the H.264 bitstream. This is extremely fast, because it does not require transcoding!

The following pipeline takes a MacCaption file input.mcc containing EIA/CEA/CTA-608 and/or 708 captions, and converts it to a DTVCC stream. It then takes an ISO MP4 file input.mp4 containing a H.264 video stream, and inserts the DTVCC stream as ATSC A/53 SEI NALs, and writes that and the original audio track to output.mp4:

gst-launch-1.0 \
  cccombiner name=ccc schedule=false ! h264parse insert-cc=a53 ! \
    mp4mux name=mp4 ! filesink location=output.mp4 \
  filesrc location=input.mcc ! mccparse ! ccconverter ! \
    closedcaption/x-cea-708,format=cc_data ! ccc.caption \
  filesrc location=input.mp4 ! qtdemux name=qt ! queue ! ccc. \
  qt.audio_0 ! queue ! mp4.

Flags : Read / Write

Default value : none (0)

update-timecode

“update-timecode” gboolean

If the stream contains Picture Timing SEI, update their timecode values using upstream GstVideoTimeCodeMeta. However, if there are no Picture Timing SEI in bitstream, this property will not insert the SEI into the bitstream - it only modifies existing ones. Moreover, even if both GstVideoTimeCodeMeta and Picture Timing SEI are present, if pic_struct_present_flag of VUI is equal to zero, timecode values will not updated as there is not enough information in the stream to do so.

Flags : Read / Write

Default value : false

H264parse-ccmode