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avcodec/cbs_av1: add missing value range constrains to timecode Metadata OBU 

Also infer the value time_offset_length as 0 when it's not present.

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2019-04-17 01:23:36 -03:00
parent 3dee6c0997
commit 67f9d3f461
1 changed files with 8 additions and 6 deletions
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14
libavcodec/cbs_av1_syntax_template.c
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@ -1753,19 +1753,19 @@ static int FUNC(metadata_timecode)(CodedBitstreamContext *ctx, RWContext *rw,
fb(9, n_frames);
if (current->full_timestamp_flag) {
fb(6, seconds_value);
fb(6, minutes_value);
fb(5, hours_value);
fc(6, seconds_value, 0, 59);
fc(6, minutes_value, 0, 59);
fc(5, hours_value, 0, 23);
} else {
flag(seconds_flag);
if (current->seconds_flag) {
fb(6, seconds_value);
fc(6, seconds_value, 0, 59);
flag(minutes_flag);
if (current->minutes_flag) {
fb(6, minutes_value);
fc(6, minutes_value, 0, 59);
flag(hours_flag);
if (current->hours_flag)
fb(5, hours_value);
fc(5, hours_value, 0, 23);
}
}
}
@ -1773,6 +1773,8 @@ static int FUNC(metadata_timecode)(CodedBitstreamContext *ctx, RWContext *rw,
fb(5, time_offset_length);
if (current->time_offset_length > 0)
fb(current->time_offset_length, time_offset_value);
else
infer(time_offset_length, 0);
return 0;
}