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Add a most basic tool to inspect ISO BMFF files

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This can be massively extended.
This commit is contained in:
Přemysl Eric Janouch
2021-12-14 01:20:52 +01:00
parent 1478a9f83f
commit 18f7607e1b
5 changed files with 164 additions and 4 deletions
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19
tools/info.h
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@@ -35,6 +35,14 @@ binhex(const uint8_t *data, size_t len)
return buf;
}
static uint64_t
u64be(const uint8_t *p)
{
return (uint64_t) p[0] << 56 | (uint64_t) p[1] << 48 |
(uint64_t) p[2] << 40 | (uint64_t) p[3] << 32 |
(uint64_t) p[4] << 24 | p[5] << 16 | p[6] << 8 | p[7];
}
static uint32_t
u32be(const uint8_t *p)
{
@@ -47,6 +55,14 @@ u16be(const uint8_t *p)
return (uint16_t) p[0] << 8 | p[1];
}
static uint64_t
u64le(const uint8_t *p)
{
return (uint64_t) p[7] << 56 | (uint64_t) p[6] << 48 |
(uint64_t) p[5] << 40 | (uint64_t) p[4] << 32 |
(uint64_t) p[3] << 24 | p[2] << 16 | p[1] << 8 | p[0];
}
static uint32_t
u32le(const uint8_t *p)
{
@@ -97,9 +113,10 @@ u16le(const uint8_t *p)
// ExifTool is too user-oriented.
static struct un {
uint64_t (*u64) (const uint8_t *);
uint32_t (*u32) (const uint8_t *);
uint16_t (*u16) (const uint8_t *);
} unbe = {u32be, u16be}, unle = {u32le, u16le};
} unbe = {u64be, u32be, u16be}, unle = {u64le, u32le, u16le};
struct tiffer {
struct un *un;