public int Get(ref JitterBuffer.JitterBufferPacket packet, int desired_span, out int start_offset)
{
if (desired_span <= 0)
{
throw new ArgumentOutOfRangeException("desired_span");
}
start_offset = 0;
int i;
if (this.reset_state)
{
bool flag = false;
long num = 0L;
for (i = 0; i < 200; i++)
{
if (this.packets[i].data != null && (!flag || this.packets[i].timestamp < num))
{
num = this.packets[i].timestamp;
flag = true;
}
}
if (!flag)
{
packet.timestamp = 0L;
packet.span = (long)this.interp_requested;
return(1);
}
this.reset_state = false;
this.pointer_timestamp = num;
this.next_stop = num;
}
this.last_returned_timestamp = this.pointer_timestamp;
if (this.interp_requested != 0)
{
packet.timestamp = this.pointer_timestamp;
packet.span = (long)this.interp_requested;
this.pointer_timestamp += (long)this.interp_requested;
packet.len = 0;
this.interp_requested = 0;
this.buffered = packet.span - (long)desired_span;
return(2);
}
i = 0;
while (i < 200 && (this.packets[i].data == null || this.packets[i].timestamp != this.pointer_timestamp || this.packets[i].timestamp + this.packets[i].span < this.pointer_timestamp + (long)desired_span))
{
i++;
}
if (i == 200)
{
i = 0;
while (i < 200 && (this.packets[i].data == null || this.packets[i].timestamp > this.pointer_timestamp || this.packets[i].timestamp + this.packets[i].span < this.pointer_timestamp + (long)desired_span))
{
i++;
}
}
if (i == 200)
{
i = 0;
while (i < 200 && (this.packets[i].data == null || this.packets[i].timestamp > this.pointer_timestamp || this.packets[i].timestamp + this.packets[i].span <= this.pointer_timestamp))
{
i++;
}
}
if (i == 200)
{
bool flag2 = false;
long num2 = 0L;
long num3 = 0L;
int num4 = 0;
for (i = 0; i < 200; i++)
{
if (this.packets[i].data != null && this.packets[i].timestamp < this.pointer_timestamp + (long)desired_span && this.packets[i].timestamp >= this.pointer_timestamp && (!flag2 || this.packets[i].timestamp < num2 || (this.packets[i].timestamp == num2 && this.packets[i].span > num3)))
{
num2 = this.packets[i].timestamp;
num3 = this.packets[i].span;
num4 = i;
flag2 = true;
}
}
if (flag2)
{
i = num4;
}
}
if (i != 200)
{
this.lost_count = 0;
if (this.arrival[i] != 0L)
{
this.UpdateTimings((int)this.packets[i].timestamp - (int)this.arrival[i] - this.buffer_margin);
}
if (this.DestroyBufferCallback != null)
{
packet.data = this.packets[i].data;
packet.len = this.packets[i].len;
}
else
{
if (this.packets[i].len <= packet.len)
{
packet.len = this.packets[i].len;
}
for (long num5 = 0L; num5 < (long)packet.len; num5 += 1L)
{
checked
{
packet.data[(int)((IntPtr)num5)] = this.packets[i].data[(int)((IntPtr)num5)];
}
}
this.FreeBuffer(this.packets[i].data);
}
this.packets[i].data = null;
int num6 = (int)this.packets[i].timestamp - (int)this.pointer_timestamp;
if (start_offset != 0)
{
start_offset = num6;
}
packet.timestamp = this.packets[i].timestamp;
this.last_returned_timestamp = packet.timestamp;
packet.span = this.packets[i].span;
packet.sequence = this.packets[i].sequence;
packet.user_data = this.packets[i].user_data;
packet.len = this.packets[i].len;
this.pointer_timestamp = this.packets[i].timestamp + this.packets[i].span;
this.buffered = packet.span - (long)desired_span;
if (start_offset != 0)
{
this.buffered += (long)start_offset;
}
return(0);
}
this.lost_count++;
short num7 = this.ComputeOptDelay();
if (num7 < 0)
{
this.ShiftTimings((short)-num7);
packet.timestamp = this.pointer_timestamp;
packet.span = (long)(-(long)num7);
packet.len = 0;
this.buffered = packet.span - (long)desired_span;
return(2);
}
packet.timestamp = this.pointer_timestamp;
desired_span = JitterBuffer.RoundDown(desired_span, this.concealment_size);
packet.span = (long)desired_span;
this.pointer_timestamp += (long)desired_span;
packet.len = 0;
this.buffered = packet.span - (long)desired_span;
return(1);
}
public void Put(JitterBuffer.JitterBufferPacket packet)
{
if (!this.reset_state)
{
for (int i = 0; i < 200; i++)
{
if (this.packets[i].data != null && this.packets[i].timestamp + this.packets[i].span <= this.pointer_timestamp)
{
if (this.DestroyBufferCallback != null)
{
this.DestroyBufferCallback(this.packets[i].data);
}
else
{
this.FreeBuffer(this.packets[i].data);
}
this.packets[i].data = null;
}
}
}
bool flag;
if (!this.reset_state && packet.timestamp < this.next_stop)
{
this.UpdateTimings((int)packet.timestamp - (int)this.next_stop - this.buffer_margin);
flag = true;
}
else
{
flag = false;
}
if (this.lost_count > 20)
{
this.Reset();
}
if (this.reset_state || packet.timestamp + packet.span + (long)this.delay_step >= this.pointer_timestamp)
{
int i = 0;
while (i < 200 && this.packets[i].data != null)
{
i++;
}
if (i == 200)
{
long timestamp = this.packets[0].timestamp;
i = 0;
for (int j = 1; j < 200; j++)
{
if (this.packets[i].data == null || this.packets[j].timestamp < timestamp)
{
timestamp = this.packets[j].timestamp;
i = j;
}
}
if (this.DestroyBufferCallback != null)
{
this.DestroyBufferCallback(this.packets[i].data);
}
else
{
this.FreeBuffer(this.packets[i].data);
}
this.packets[i].data = null;
}
if (this.DestroyBufferCallback != null)
{
this.packets[i].data = packet.data;
}
else
{
this.packets[i].data = this.AllocBuffer((long)packet.len);
for (int j = 0; j < packet.len; j++)
{
this.packets[i].data[j] = packet.data[j];
}
}
this.packets[i].timestamp = packet.timestamp;
this.packets[i].span = packet.span;
this.packets[i].len = packet.len;
this.packets[i].sequence = packet.sequence;
this.packets[i].user_data = packet.user_data;
if (this.reset_state || flag)
{
this.arrival[i] = 0L;
return;
}
this.arrival[i] = this.next_stop;
}
}
