xdsopl/robot36
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let's not patch interleaved scan lines together ..

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its complicated enough already and this way we can correct errors much easier
This commit is contained in:
Ahmet Inan 2014-11-26 16:09:41 +01:00
parent 09736151ad
commit 27526d52ff
1 changed files with 13 additions and 10 deletions
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23
app/src/main/rs/decoder.rs
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@ -200,9 +200,7 @@ void robot36_mode()
v_begin = v_sep_end + sep_porch_len * sample_rate;
v_end = v_begin + v_scan_len * sample_rate;
scanline_length = (sync_len + sync_porch_len + y_scan_len
+ seperator_len + sep_porch_len + u_scan_len
+ sync_len + sync_porch_len + y_scan_len
+ seperator_len + sep_porch_len + v_scan_len) * sample_rate;
+ seperator_len + sep_porch_len + u_scan_len) * sample_rate;
maximum_length = scanline_length + sync_porch_len * sample_rate;
}
void robot72_mode()
@ -424,8 +422,8 @@ static void robot36_decoder()
static prev_timeout;
if (!prev_timeout && 2 * abs(seperator_counter) > seperator_length)
vpos = ~1 & vpos | seperator_counter > 0;
if (vpos&1 || hpos >= maximum_length) {
vpos |= 1;
prev_timeout = hpos >= maximum_length;
if (vpos & 1) {
for (int i = 0; i < bitmap_width; ++i) {
uchar even_y = value_buffer[i * (y_end-y_begin) / bitmap_width + y_begin];
uchar u = value_buffer[i * (u_end-u_begin) / bitmap_width + u_begin];
@ -434,14 +432,19 @@ static void robot36_decoder()
pixel_buffer[bitmap_width * (vpos-1) + i] = rsYuvToRGBA_uchar4(even_y, u, v);
pixel_buffer[bitmap_width * vpos + i] = rsYuvToRGBA_uchar4(odd_y, u, v);
}
prev_timeout = hpos >= maximum_length;
if (prev_timeout)
hpos -= scanline_length;
else
hpos = 0;
even_hpos = 0;
} else {
even_hpos = hpos;
if (prev_timeout) {
even_hpos = scanline_length;
hpos -= scanline_length;
} else {
even_hpos = hpos;
hpos = 0;
}
}
}
static void yuv_decoder()
@ -535,7 +538,7 @@ void decode(int samples) {
int cnt_active = cabs(dat_baseband) < cabs(cnt_baseband);
uchar cnt_level = save_cnt ? 127.5f - 127.5f * cnt_value : 0.0f;
uchar dat_level = save_dat ? 127.5f + 127.5f * dat_value : 0.0f;
value_buffer[hpos] = cnt_active ? cnt_level : dat_level;
value_buffer[hpos + even_hpos] = cnt_active ? cnt_level : dat_level;
int cnt_quantized = round(cnt_value);
int dat_quantized = round(dat_value);
@ -559,8 +562,8 @@ void decode(int samples) {
int sync_pulse = !sync_level && sync_counter >= sync_length;
sync_counter = sync_level ? sync_counter + 1 : 0;
int u_sep = u_sep_begin <= (hpos-even_hpos) && (hpos-even_hpos) < u_sep_end;
int v_sep = v_sep_begin <= (hpos-even_hpos) && (hpos-even_hpos) < v_sep_end;
int u_sep = u_sep_begin <= hpos && hpos < u_sep_end;
int v_sep = v_sep_begin <= hpos && hpos < v_sep_end;
seperator_counter += (u_sep || v_sep) ? dat_quantized : 0;
if (++hpos >= maximum_length || sync_pulse) {