a_dinosaur/ZSNES
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ZMV format now ready to use variable slowdown code.

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This commit is contained in:
grinvader
2005-05-13 20:12:33 +00:00
parent 886fec7b7d
commit 07fef52f3e
1 changed files with 10 additions and 0 deletions
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10
zsnes/src/zmovie.c
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@@ -119,6 +119,7 @@ Header
4 bytes - Number of rerecords 4 bytes - Number of rerecords
4 bytes - Number of frames removed by rerecord 4 bytes - Number of frames removed by rerecord
4 bytes - Number of frames advanced step-by-step 4 bytes - Number of frames advanced step-by-step
1 byte - Average recording FPS (includes dropped frames) x4-5 for precision
4 bytes - Number of key combos 4 bytes - Number of key combos
2 bytes - Number of internal chapters 2 bytes - Number of internal chapters
2 bytes - Length of author name 2 bytes - Length of author name
@@ -241,6 +242,7 @@ struct zmv_header
unsigned int rerecords; unsigned int rerecords;
unsigned int removed_frames; unsigned int removed_frames;
unsigned int incr_frames; unsigned int incr_frames;
unsigned char average_fps;
unsigned int key_combos; unsigned int key_combos;
unsigned short internal_chapters; unsigned short internal_chapters;
unsigned short author_len; unsigned short author_len;
@@ -264,6 +266,7 @@ static void zmv_header_write(struct zmv_header *zmv_head, FILE *fp)
fwrite4(zmv_head->rerecords, fp); fwrite4(zmv_head->rerecords, fp);
fwrite4(zmv_head->removed_frames, fp); fwrite4(zmv_head->removed_frames, fp);
fwrite4(zmv_head->incr_frames, fp); fwrite4(zmv_head->incr_frames, fp);
fwrite(&zmv_head->average_fps, 1, 1, fp);
fwrite4(zmv_head->key_combos, fp); fwrite4(zmv_head->key_combos, fp);
fwrite2(zmv_head->internal_chapters, fp); fwrite2(zmv_head->internal_chapters, fp);
fwrite2(zmv_head->author_len, fp); fwrite2(zmv_head->author_len, fp);
@@ -326,6 +329,7 @@ static bool zmv_header_read(struct zmv_header *zmv_head, FILE *fp)
zmv_head->rerecords = fread4(fp); zmv_head->rerecords = fread4(fp);
zmv_head->removed_frames = fread4(fp); zmv_head->removed_frames = fread4(fp);
zmv_head->incr_frames = fread4(fp); zmv_head->incr_frames = fread4(fp);
fread(&zmv_head->average_fps, 1, 1, fp);
zmv_head->key_combos = fread4(fp); zmv_head->key_combos = fread4(fp);
zmv_head->internal_chapters = fread2(fp); zmv_head->internal_chapters = fread2(fp);
zmv_head->author_len = fread2(fp); zmv_head->author_len = fread2(fp);
@@ -857,6 +861,7 @@ static void zmv_record(bool pause, unsigned char combos_used, unsigned char slow
{ {
unsigned char flag = 0; unsigned char flag = 0;
unsigned char press_buf[] = { 0, 0, 0, 0, 0, 0, 0, 0 }; unsigned char press_buf[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
static double average = 1.0;
size_t skip_bits = 0; size_t skip_bits = 0;
if (pause) { zmv_vars.header.incr_frames++; } if (pause) { zmv_vars.header.incr_frames++; }
@@ -887,6 +892,11 @@ static void zmv_record(bool pause, unsigned char combos_used, unsigned char slow
{ {
zmv_vars.rle_count++; zmv_vars.rle_count++;
} }
// it's the right formula, don't waste time busting your brain on it
average = (average * (zmv_vars.header.frames + zmv_vars.header.removed_frames) + 1.0/(slow+1))/(zmv_vars.header.frames + zmv_vars.header.removed_frames + 1);
// 1/4 precision for NTSC, 1/5 precision for PAL
zmv_vars.header.average_fps = (unsigned char)(average * ((romispal) ? 250 : 240));
zmv_vars.header.frames++; zmv_vars.header.frames++;
} }