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* fixing a bug in DV timestamp generation. Now libavtest doesn't

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depend on a local TZ anymore.

Originally committed as revision 3368 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Roman Shaposhnik 2004-08-02 05:42:49 +00:00
parent bc68bfdde0
commit d8665b1274
2 changed files with 6 additions and 5 deletions
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9
libavformat/dv.c
View File

@ -195,7 +195,7 @@ static int dv_write_pack(enum dv_pack_type pack_id, DVMuxContext *c, uint8_t* bu
case dv_timecode:
ct = (time_t)(c->frames / ((float)c->sys->frame_rate /
(float)c->sys->frame_rate_base));
localtime_r(&ct, &tc);
gmtime_r(&ct, &tc);
/*
* LTC drop-frame frame counter drops two frames (0 and 1) every
* minute, unless it is exactly divisible by 10
@ -253,14 +253,15 @@ static int dv_write_pack(enum dv_pack_type pack_id, DVMuxContext *c, uint8_t* bu
case dv_viedo_recdate: /* VAUX recording date */
ct = c->start_time + (time_t)(c->frames /
((float)c->sys->frame_rate / (float)c->sys->frame_rate_base));
localtime_r(&ct, &tc);
gmtime_r(&ct, &tc);
buf[1] = 0xff; /* ds, tm, tens of time zone, units of time zone */
/* 0xff is very likely to be "unknown" */
buf[2] = (3 << 6) | /* reserved -- always 1 */
((tc.tm_mday / 10) << 4) | /* Tens of day */
(tc.tm_mday % 10); /* Units of day */
buf[3] = /* we set high 4 bits to 0, shouldn't we set them to week? */
(tc.tm_mon % 10); /* Units of month */
(((tc.tm_mon + 1) / 10) << 4) | /* Tens of month */
((tc.tm_mon + 1) % 10); /* Units of month */
buf[4] = (((tc.tm_year % 100) / 10) << 4) | /* Tens of year */
(tc.tm_year % 10); /* Units of year */
break;
@ -268,7 +269,7 @@ static int dv_write_pack(enum dv_pack_type pack_id, DVMuxContext *c, uint8_t* bu
case dv_video_rectime: /* VAUX recording time */
ct = c->start_time + (time_t)(c->frames /
((float)c->sys->frame_rate / (float)c->sys->frame_rate_base));
localtime_r(&ct, &tc);
gmtime_r(&ct, &tc);
buf[1] = (3 << 6) | /* reserved -- always 1 */
0x3f; /* tens of frame, units of frame: 0x3f - "unknown" ? */
buf[2] = (1 << 7) | /* reserved -- always 1 */

2
tests/libav.regression.ref
View File

@ -25,7 +25,7 @@ b57e3c4e0f27cbd0bf7b7fafb142fe7f *./data/b-libav.ffm
fea20ced22451312dd463110e594eda6 *./data/b-libav.nut
332415 ./data/b-libav.nut
./data/b-libav.nut CRC=001a3415
b28918de1199e60a7ac235eefacb7d3b *./data/b-libav.dv
4e4b45f8f39ee65658c40ccc3e94a2b0 *./data/b-libav.dv
3600000 ./data/b-libav.dv
./data/b-libav.dv CRC=03701687
9a9da315747599f7718cc9a9a09c21ff *./data/b-libav.pbm