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Improvements to T.4 end of image handling, and the related tests.

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A lot of tiny tidy up edits
This commit is contained in:
Steve Underwood
2012-08-12 22:11:06 +08:00
parent e69a5a3037
commit 5f12c3dc1c
80 changed files with 340 additions and 585 deletions
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25
libs/spandsp/src/t4_t6_encode.c
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@@ -918,14 +918,14 @@ static int get_next_row(t4_t6_encode_state_t *s)
}
/*- End of function --------------------------------------------------------*/
SPAN_DECLARE(int) t4_t6_encode_check_bit(t4_t6_encode_state_t *s)
SPAN_DECLARE(int) t4_t6_encode_image_complete(t4_t6_encode_state_t *s)
{
if (s->bitstream_optr >= s->bitstream_iptr)
{
if (get_next_row(s) < 0)
return SIG_STATUS_END_OF_DATA;
}
return (s->bitstream[s->bitstream_optr] >> (7 - s->bit_pos)) & 1;
return 0;
}
/*- End of function --------------------------------------------------------*/
@@ -933,8 +933,12 @@ SPAN_DECLARE(int) t4_t6_encode_get_bit(t4_t6_encode_state_t *s)
{
int bit;
if ((bit = t4_t6_encode_check_bit(s)) < 0)
return bit;
if (s->bitstream_optr >= s->bitstream_iptr)
{
if (get_next_row(s) < 0)
return SIG_STATUS_END_OF_DATA;
}
bit = (s->bitstream[s->bitstream_optr] >> (7 - s->bit_pos)) & 1;
if (--s->bit_pos < 0)
{
s->bitstream_optr++;
@@ -944,18 +948,7 @@ SPAN_DECLARE(int) t4_t6_encode_get_bit(t4_t6_encode_state_t *s)
}
/*- End of function --------------------------------------------------------*/
SPAN_DECLARE(int) t4_t6_encode_get_byte(t4_t6_encode_state_t *s)
{
if (s->bitstream_optr >= s->bitstream_iptr)
{
if (get_next_row(s) < 0)
return 0x100;
}
return s->bitstream[s->bitstream_optr++];
}
/*- End of function --------------------------------------------------------*/
SPAN_DECLARE(int) t4_t6_encode_get_chunk(t4_t6_encode_state_t *s, uint8_t buf[], int max_len)
SPAN_DECLARE(int) t4_t6_encode_get(t4_t6_encode_state_t *s, uint8_t buf[], int max_len)
{
int len;
int n;