def assemble(self, end_timestamp_ms):
if lib.WebPAnimEncoderAdd(self.ptr, ffi.NULL, end_timestamp_ms, ffi.NULL) == 0:
raise WebPError('encoding error: ' + self.ptr.error_code)
_webp_data = _WebPData()
if lib.WebPAnimEncoderAssemble(self.ptr, _webp_data.ptr) == 0:
raise WebPError('error assembling animation')
return _webp_data.done()
def encode_frame(self, frame, timestamp_ms, config=None):
"""Add a frame to the animation.
Args:
frame (WebPPicture): Frame image.
timestamp_ms (int): When the frame should be shown (in milliseconds).
config (WebPConfig): Encoder configuration.
"""
if config is None:
config = WebPConfig.new()
if lib.WebPAnimEncoderAdd(self.ptr, frame.ptr, timestamp_ms, config.ptr) == 0:
raise WebPError('encoding error: ' + self.ptr.error_code)