GstH264Decoder

GstCodecs.H264Decoder

GObject.Object
    ╰──GObject.InitiallyUnowned
        ╰──Gst.Object
            ╰──Gst.Element
                ╰──GstVideo.VideoDecoder
                    ╰──GstCodecs.H264Decoder

GstCodecs.H264Decoder.prototype.get_picture

function GstCodecs.H264Decoder.prototype.get_picture(system_frame_number: Number): {
    // javascript wrapper for 'gst_h264_decoder_get_picture'
}

Retrive DPB and return a GstCodecs.H264Picture corresponding to the system_frame_number

Since : 1.18

GstCodecs.H264Decoder.prototype.set_process_ref_pic_lists

function GstCodecs.H264Decoder.prototype.set_process_ref_pic_lists(process: Number): {
    // javascript wrapper for 'gst_h264_decoder_set_process_ref_pic_lists'
}

Called to en/disable reference picture modification process.

Since : 1.18

compliance

“compliance” GstCodecs.H264DecoderCompliance

The compliance controls the behavior of the decoder to handle some subtle cases and contexts, such as the low-latency DPB bumping or mapping the baseline profile as the constrained-baseline profile, etc.

Flags : Read / Write / Construct

Since : 1.20

vfunc_decode_slice

function vfunc_decode_slice(decoder: GstCodecs.H264Decoder, picture: GstCodecs.H264Picture, slice: GstCodecs.H264Slice, ref_pic_list0: [ GstCodecs.H264Picture ], ref_pic_list1: [ GstCodecs.H264Picture ]): {
    // javascript implementation of the 'decode_slice' virtual method
}

Provides per slice data with parsed slice header and required raw bitstream for subclass to decode it. If GstCodecs.H264Decoder.prototype.set_process_ref_pic_lists is called with true by the subclass, ref_pic_list0 and ref_pic_list1 are non-%NULL. In case of interlaced stream, ref_pic_list0 and ref_pic_list1 will contain only the first field of complementary reference field pair if currently being decoded picture is a frame picture. Subclasses might need to retrive the other field (i.e., the second field) of the picture if needed.

vfunc_end_picture

function vfunc_end_picture(decoder: GstCodecs.H264Decoder, picture: GstCodecs.H264Picture): {
    // javascript implementation of the 'end_picture' virtual method
}

Optional. Called per one GstCodecs.H264Picture to notify subclass to finish decoding process for the GstCodecs.H264Picture

vfunc_get_preferred_output_delay

function vfunc_get_preferred_output_delay(decoder: GstCodecs.H264Decoder, live: Number): {
    // javascript implementation of the 'get_preferred_output_delay' virtual method
}

Optional. Called by baseclass to query whether delaying output is preferred by subclass or not.

Since : 1.20

vfunc_new_field_picture

function vfunc_new_field_picture(decoder: GstCodecs.H264Decoder, first_field: GstCodecs.H264Picture, second_field: GstCodecs.H264Picture): {
    // javascript implementation of the 'new_field_picture' virtual method
}

Called when a new field picture is created for interlaced field picture. Subclass can attach implementation specific user data on second_field via gst_h264_picture_set_user_data

Since : 1.20

vfunc_new_picture

function vfunc_new_picture(decoder: GstCodecs.H264Decoder, frame: GstVideo.VideoCodecFrame, picture: GstCodecs.H264Picture): {
    // javascript implementation of the 'new_picture' virtual method
}

Optional. Called whenever new GstCodecs.H264Picture is created. Subclass can set implementation specific user data on the GstCodecs.H264Picture via gst_h264_picture_set_user_data

vfunc_output_picture

function vfunc_output_picture(decoder: GstCodecs.H264Decoder, frame: GstVideo.VideoCodecFrame, picture: GstCodecs.H264Picture): {
    // javascript implementation of the 'output_picture' virtual method
}

Called with a GstCodecs.H264Picture which is required to be outputted. The GstVideo.VideoCodecFrame must be consumed by subclass.

vfunc_start_picture

function vfunc_start_picture(decoder: GstCodecs.H264Decoder, picture: GstCodecs.H264Picture, slice: GstCodecs.H264Slice, dpb: GstCodecs.H264Dpb): {
    // javascript implementation of the 'start_picture' virtual method
}

Optional. Called per one GstCodecs.H264Picture to notify subclass to prepare decoding process for the GstCodecs.H264Picture

GstCodecs.H264Dpb

GstCodecs.H264Dpb.prototype.add

function GstCodecs.H264Dpb.prototype.add(picture: GstCodecs.H264Picture): {
    // javascript wrapper for 'gst_h264_dpb_add'
}

Store the picture

GstCodecs.H264Dpb.prototype.bump

function GstCodecs.H264Dpb.prototype.bump(drain: Number): {
    // javascript wrapper for 'gst_h264_dpb_bump'
}

Perform bumping process as defined in C.4.5.3 "Bumping" process. If drain is true, dpb will remove a GstCodecs.H264Picture from internal array so that returned GstCodecs.H264Picture could hold the last reference of it

Since : 1.20

GstCodecs.H264Dpb.prototype.clear

function GstCodecs.H264Dpb.prototype.clear(): {
    // javascript wrapper for 'gst_h264_dpb_clear'
}

Clear all stored GstCodecs.H264Picture

GstCodecs.H264Dpb.prototype.delete_unused

function GstCodecs.H264Dpb.prototype.delete_unused(): {
    // javascript wrapper for 'gst_h264_dpb_delete_unused'
}

Delete already outputted and not referenced all pictures from dpb

GstCodecs.H264Dpb.prototype.free

function GstCodecs.H264Dpb.prototype.free(): {
    // javascript wrapper for 'gst_h264_dpb_free'
}

Free the dpb

GstCodecs.H264Dpb.prototype.get_interlaced

function GstCodecs.H264Dpb.prototype.get_interlaced(): {
    // javascript wrapper for 'gst_h264_dpb_get_interlaced'
}

Since : 1.20

GstCodecs.H264Dpb.prototype.get_long_ref_by_long_term_pic_num

function GstCodecs.H264Dpb.prototype.get_long_ref_by_long_term_pic_num(long_term_pic_num: Number): {
    // javascript wrapper for 'gst_h264_dpb_get_long_ref_by_long_term_pic_num'
}

Find a long term reference picture which has matching long term picture number

Since : 1.20

GstCodecs.H264Dpb.prototype.get_lowest_frame_num_short_ref

function GstCodecs.H264Dpb.prototype.get_lowest_frame_num_short_ref(): {
    // javascript wrapper for 'gst_h264_dpb_get_lowest_frame_num_short_ref'
}

Find a short term reference picture which has the lowest frame_num_wrap

GstCodecs.H264Dpb.prototype.get_max_num_frames

function GstCodecs.H264Dpb.prototype.get_max_num_frames(): {
    // javascript wrapper for 'gst_h264_dpb_get_max_num_frames'
}

Since : 1.20

GstCodecs.H264Dpb.prototype.get_max_num_reorder_frames

function GstCodecs.H264Dpb.prototype.get_max_num_reorder_frames(): {
    // javascript wrapper for 'gst_h264_dpb_get_max_num_reorder_frames'
}

Since : 1.22.2

GstCodecs.H264Dpb.prototype.get_picture

function GstCodecs.H264Dpb.prototype.get_picture(system_frame_number: Number): {
    // javascript wrapper for 'gst_h264_dpb_get_picture'
}

Since : 1.18

GstCodecs.H264Dpb.prototype.get_pictures_all

function GstCodecs.H264Dpb.prototype.get_pictures_all(): {
    // javascript wrapper for 'gst_h264_dpb_get_pictures_all'
}

Return: (element-type GstH264Picture) (transfer full): a GArray (not introspectable) of GstCodecs.H264Picture stored in dpb

GstCodecs.H264Dpb.prototype.get_pictures_long_term_ref

function GstCodecs.H264Dpb.prototype.get_pictures_long_term_ref(include_second_field: Number): {
    // javascript wrapper for 'gst_h264_dpb_get_pictures_long_term_ref'
}

Retrieve all long-term reference pictures from dpb. The picture will be appended to the array.

Since : 1.20

GstCodecs.H264Dpb.prototype.get_pictures_short_term_ref

function GstCodecs.H264Dpb.prototype.get_pictures_short_term_ref(include_non_existing: Number, include_second_field: Number): {
    // javascript wrapper for 'gst_h264_dpb_get_pictures_short_term_ref'
}

Retrieve all short-term reference pictures from dpb. The picture will be appended to the array.

Since : 1.20

GstCodecs.H264Dpb.prototype.get_short_ref_by_pic_num

function GstCodecs.H264Dpb.prototype.get_short_ref_by_pic_num(pic_num: Number): {
    // javascript wrapper for 'gst_h264_dpb_get_short_ref_by_pic_num'
}

Find a short term reference picture which has matching picture number

GstCodecs.H264Dpb.prototype.get_size

function GstCodecs.H264Dpb.prototype.get_size(): {
    // javascript wrapper for 'gst_h264_dpb_get_size'
}

Return: the length of stored dpb array

GstCodecs.H264Dpb.prototype.has_empty_frame_buffer

function GstCodecs.H264Dpb.prototype.has_empty_frame_buffer(): {
    // javascript wrapper for 'gst_h264_dpb_has_empty_frame_buffer'
}

Since : 1.20

GstCodecs.H264Dpb.prototype.mark_all_non_ref

function GstCodecs.H264Dpb.prototype.mark_all_non_ref(): {
    // javascript wrapper for 'gst_h264_dpb_mark_all_non_ref'
}

Mark all pictures are not referenced

GstCodecs.H264Dpb.prototype.needs_bump

function GstCodecs.H264Dpb.prototype.needs_bump(to_insert: GstCodecs.H264Picture, latency_mode: GstCodecs.H264DpbBumpMode): {
    // javascript wrapper for 'gst_h264_dpb_needs_bump'
}

Since : 1.20

GstCodecs.H264Dpb.prototype.num_ref_frames

function GstCodecs.H264Dpb.prototype.num_ref_frames(): {
    // javascript wrapper for 'gst_h264_dpb_num_ref_frames'
}

Since : 1.20

GstCodecs.H264Dpb.prototype.set_interlaced

function GstCodecs.H264Dpb.prototype.set_interlaced(interlaced: Number): {
    // javascript wrapper for 'gst_h264_dpb_set_interlaced'
}

Since : 1.20

GstCodecs.H264Dpb.prototype.set_last_output

function GstCodecs.H264Dpb.prototype.set_last_output(picture: GstCodecs.H264Picture): {
    // javascript wrapper for 'gst_h264_dpb_set_last_output'
}

Notify the DPB that picture is output directly without storing in the DPB.

Since : 1.20

GstCodecs.H264Dpb.prototype.set_max_num_frames

function GstCodecs.H264Dpb.prototype.set_max_num_frames(max_num_frames: Number): {
    // javascript wrapper for 'gst_h264_dpb_set_max_num_frames'
}

Set the number of maximum allowed frames to store

Since : 1.20

GstCodecs.H264Dpb.prototype.set_max_num_reorder_frames

function GstCodecs.H264Dpb.prototype.set_max_num_reorder_frames(max_num_reorder_frames: Number): {
    // javascript wrapper for 'gst_h264_dpb_set_max_num_reorder_frames'
}

Since : 1.20

GstCodecs.H264Picture

GstCodecs.H264Picture.prototype.new

function GstCodecs.H264Picture.prototype.new(): {
    // javascript wrapper for 'gst_h264_picture_new'
}

Create new GstCodecs.H264Picture

GstCodecs.H264Slice

GstCodecs.H264DecoderCompliance

Since : 1.20

GstCodecs.H264DpbBumpMode

Since : 1.20

GstCodecs.H264PictureField

GstCodecs.H264PictureReference

Since : 1.20

GstCodecs.H264_DPB_MAX_SIZE