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add parameter to print out margin for overlapped unpacking

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This commit is contained in:
Dennis Ranke
2022-09-25 23:44:03 +02:00
parent af5fe898bf
commit b12c8f8d93
5 changed files with 53 additions and 16 deletions
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10
src/rans.rs
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@@ -149,6 +149,7 @@ impl EntropyCoder for CostCounter {
pub struct RansDecoder<'a> {
data: &'a [u8],
pos: usize,
state: u32,
use_bitstream: bool,
byte: u8,
@@ -163,6 +164,7 @@ impl<'a> RansDecoder<'a> {
pub fn new(data: &'a [u8], config: &Config) -> RansDecoder<'a> {
RansDecoder {
data,
pos: 0,
state: 0,
use_bitstream: config.use_bitstream,
byte: 0,
@@ -172,6 +174,10 @@ impl<'a> RansDecoder<'a> {
}
}
pub fn pos(&self) -> usize {
self.pos
}
pub fn decode_with_context(&mut self, context: &mut Context) -> bool {
let bit = self.decode_bit(context.prob());
context.update(bit);
@@ -183,8 +189,8 @@ impl<'a> RansDecoder<'a> {
if self.use_bitstream {
while self.state < 32768 {
if self.bits_left == 0 {
self.byte = self.data[0];
self.data = &self.data[1..];
self.byte = self.data[self.pos];
self.pos += 1;
self.bits_left = 8;
}
if self.bitstream_is_big_endian {