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fixed parsing of broken tcmi boxes

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This commit is contained in:
jeanlf
2020-07-24 15:53:27 +02:00
parent e4703514bd
commit 2cad6c0db7
1 changed files with 7 additions and 1 deletions
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8
src/isomedia/box_code_apple.c
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@@ -591,7 +591,8 @@ GF_Err tcmi_Read(GF_Box *s, GF_BitStream *bs)
u32 len;
GF_TimeCodeMediaInformationBox *ptr = (GF_TimeCodeMediaInformationBox *)s;
ISOM_DECREASE_SIZE(s, 21);
//don't remove font name len field, some writers just skip it if no font ...
ISOM_DECREASE_SIZE(s, 20);
ptr->text_font = gf_bs_read_u16(bs);
ptr->text_face = gf_bs_read_u16(bs);
@@ -603,6 +604,11 @@ GF_Err tcmi_Read(GF_Box *s, GF_BitStream *bs)
ptr->back_color_red = gf_bs_read_u16(bs);
ptr->back_color_green = gf_bs_read_u16(bs);
ptr->back_color_blue = gf_bs_read_u16(bs);
if (!ptr->size) {
GF_LOG(GF_LOG_WARNING, GF_LOG_CONTAINER, ("[iso file] broken tmci box, missing font name length field\n" ));
return GF_OK;
}
ISOM_DECREASE_SIZE(s, 1);
len = gf_bs_read_u8(bs);
if (len > ptr->size)
len = (u32) ptr->size;