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invtelecine: Change format table

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Add format name, phase table.
This commit is contained in:
David Schleef 2010-05-22 00:44:40 -07:00
parent b213b03804
commit 750cdc912b
1 changed files with 91 additions and 12 deletions
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103
gst/invtelecine/gstinvtelecine.c
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@ -66,6 +66,7 @@ struct _GstInvtelecine
int field;
gboolean locked;
int last_lock;
int phase;
Field fifo[FIFO_SIZE];
@ -355,8 +356,10 @@ gst_invtelecine_push_field (GstInvtelecine * invtelecine, GstBuffer * buffer,
gst_invtelecine_compare_fields (invtelecine, i, i - 1);
invtelecine->fifo[i].prev2 =
gst_invtelecine_compare_same_fields (invtelecine, i, i - 2);
#if 0
g_print ("compare %g %g\n", invtelecine->fifo[i].prev,
invtelecine->fifo[i].prev2);
#endif
}
@ -365,17 +368,18 @@ int pulldown_2_3[] = { 2, 3 };
typedef struct _PulldownFormat PulldownFormat;
struct _PulldownFormat
{
const char *name;
int cycle_length;
int n_fields[10];
};
static const PulldownFormat formats[] = {
/* interlaced */
{1, {1}},
{"interlaced", 1, {1}},
/* 30p */
{2, {2}},
{"2:1", 2, {2}},
/* 24p */
{5, {2, 3,}},
{"3:2", 5, {2, 3,}},
};
static int
@ -453,6 +457,7 @@ get_score_2 (GstInvtelecine * invtelecine, int format_index, int phase)
return score;
}
#if 0
static int
get_score (GstInvtelecine * invtelecine, int phase)
{
@ -502,29 +507,102 @@ get_score (GstInvtelecine * invtelecine, int phase)
return score;
}
#endif
int format_table[] = { 0, 1, 1, 2, 2, 2, 2, 2 };
int phase_table[] = { 0, 0, 1, 0, 1, 2, 3, 4 };
static void
gst_invtelecine_process (GstInvtelecine * invtelecine, gboolean flush)
{
int score;
//int score;
int num_fields;
int scores[8];
int i;
int max_i;
//int format;
int phase;
GST_DEBUG ("process %d", invtelecine->num_fields);
while (invtelecine->num_fields > 15) {
scores[0] = get_score_2 (invtelecine, 0, 0);
scores[1] = get_score_2 (invtelecine, 1, 0);
scores[2] = get_score_2 (invtelecine, 1, 1);
scores[3] = get_score_2 (invtelecine, 2, 0);
scores[4] = get_score_2 (invtelecine, 2, 1);
scores[5] = get_score_2 (invtelecine, 2, 2);
scores[6] = get_score_2 (invtelecine, 2, 3);
scores[7] = get_score_2 (invtelecine, 2, 4);
num_fields = 0;
for (i = 0; i < 8; i++) {
scores[i] = get_score_2 (invtelecine, format_table[i], phase_table[i]);
}
#if 0
g_print ("scores %d %d %d %d %d %d %d %d %d\n", invtelecine->field,
scores[0], scores[1], scores[2], scores[3],
scores[4], scores[5], scores[6], scores[7]);
#endif
max_i = invtelecine->last_lock;
for (i = 0; i < 8; i++) {
int field_index;
int k;
phase = (invtelecine->field + phase_table[i]) %
formats[format_table[i]].cycle_length;
field_index = 0;
k = 0;
while (phase > 0) {
field_index++;
if (field_index >= formats[format_table[i]].n_fields[k]) {
field_index = 0;
k++;
if (formats[format_table[i]].n_fields[k] == 0) {
k = 0;
}
}
phase--;
}
if (field_index == 0) {
if (scores[i] > scores[max_i]) {
max_i = i;
}
}
}
if (max_i != invtelecine->last_lock) {
GST_WARNING ("new structure %s, phase %d",
formats[format_table[max_i]].name, phase_table[max_i]);
invtelecine->last_lock = max_i;
}
{
int field_index;
int k;
phase = (invtelecine->field + phase_table[max_i]) %
formats[format_table[max_i]].cycle_length;
field_index = 0;
k = 0;
while (phase > 0) {
field_index++;
if (field_index >= formats[format_table[max_i]].n_fields[k]) {
field_index = 0;
k++;
if (formats[format_table[max_i]].n_fields[k] == 0) {
k = 0;
}
}
phase--;
}
num_fields = formats[format_table[max_i]].n_fields[k];
}
if (num_fields == 0) {
GST_WARNING ("unlocked");
num_fields = 1;
}
#if 0
if (invtelecine->locked) {
score = get_score (invtelecine, invtelecine->phase);
if (score < 4) {
@ -568,6 +646,7 @@ gst_invtelecine_process (GstInvtelecine * invtelecine, gboolean flush)
} else {
num_fields = 2;
}
#endif
gst_invtelecine_output_fields (invtelecine, num_fields);