A method for determining an estimate br est of a bitrate br of a bitstream; wherein the bitstream comprises a sequence of frames; wherein the frames of the sequence of frames comprise a varying number of bits; wherein the frames of the sequence of frames correspond to excerpts of an audio and/or video signal, wherein the excerpts have a constant temporal length; wherein at least two frames of the sequence of frames comprise a wait_frames parameter; wherein the wait_frames parameter of a frame is indicative of a number of frames that the corresponding frame is to be delayed by a multiplexing device and/or by a decoding device prior to processing of the frame by the multiplexing device and/or by the decoding device; the method comprising - determining the total number of bits S Tot for N frames of a subsequence of frames from the bitstream; - determining a corrected number N' of frames by offsetting the number N of frames with the difference between the wait_frames parameters of a first frame and a second frame of the subsequence; wherein the first frame corresponds to the frame at a beginning of the subsequence; and wherein the second frame corresponds to the frame at an end of the subsequence; - determining a lower bitrate bound br min and an upper bitrate bound br max of the bitrate br, wherein the lower bitrate bound is given by br min = S Tot N ′ + 1 × f frame and the upper bitrate bound is given by br max = S Tot N ′ − 1 × f frame and wherein f frame is a frame rate of the bitstream; and - determining the estimate br est of the bitrate br of the bitstream as a value comprised within the lower bitrate bound br min and the upper bitrate bound br max, characterized in that - the first frame comprises a bitrate code parameter which corresponds to a start code; - the second frame comprises a bitrate code parameter which corresponds to a stop code; and - one or more frames of the subsequence other than the first and the second frame comprises a different bitrate code parameter which does not correspond to the start code or the stop code, and wherein the method further comprises: - representing the estimate br est of the bitrate br of the bitstream in a floating point representation as br est = f brCorr × 2 k comprising a mantissa f brCorr and an exponent k; - wherein the exponent k is determined based on the lower bitrate bound br min and/or the upper bitrate bound br max of the bitrate br such that br min ≤ br est < br max; and - wherein the mantissa f brCorr is determined based on the different bitrate code parameter of said one or more frames of the subsequence. - determining the total number of bits S Tot for N frames of a subsequence of frames from the bitstream; - determining a corrected number N' of frames by offsetting the number N of frames with the difference between the wait_frames parameters of a first frame and a second frame of the subsequence; wherein the first frame corresponds to the frame at a beginning of the subsequence; and wherein the second frame corresponds to the frame at an end of the subsequence; - determining a lower bitrate bound br min and an upper bitrate bound br max of the bitrate br, wherein the lower bitrate bound is given by br min = S Tot N ′ + 1 × f frame and the upper bitrate bound is given by br max = S Tot N ′ − 1 × f frame and wherein f frame is a frame rate of the bitstream; and - determining the estimate br est of the bitrate br of the bitstream as a value comprised within the lower bitrate bound br min and the upper bitrate bound br max, - the first frame comprises a bitrate code parameter which corresponds to a start code; - the second frame comprises a bitrate code parameter which corresponds to a stop code; and - one or more frames of the subsequence other than the first and the second frame comprises a different bitrate code parameter which does not correspond to the start code or the stop code, and - representing the estimate br est of the bitrate br of the bitstream in a floating point representation as br est = f brCorr × 2 k comprising a mantissa f brCorr and an exponent k; - wherein the exponent k is determined based on the lower bitrate bound br min and/or the upper bitrate bound br max of the bitrate br such that br min ≤ br est < br max; and - wherein the mantissa f brCorr is determined based on the different bitrate code parameter of said one or more frames of the subsequence.