mirror of
https://github.com/alfg/mp4-rust.git
synced 2024-05-09 12:02:52 +00:00
3ecfd0cc9d
* Run cargo clippy --fix * Run cargo fmt --all
343 lines
11 KiB
Rust
343 lines
11 KiB
Rust
use byteorder::{BigEndian, ReadBytesExt, WriteBytesExt};
|
|
use serde::Serialize;
|
|
use std::io::{Read, Seek, Write};
|
|
|
|
use crate::mp4box::*;
|
|
|
|
#[derive(Debug, Clone, PartialEq, Serialize)]
|
|
pub struct Avc1Box {
|
|
pub data_reference_index: u16,
|
|
pub width: u16,
|
|
pub height: u16,
|
|
|
|
#[serde(with = "value_u32")]
|
|
pub horizresolution: FixedPointU16,
|
|
|
|
#[serde(with = "value_u32")]
|
|
pub vertresolution: FixedPointU16,
|
|
pub frame_count: u16,
|
|
pub depth: u16,
|
|
pub avcc: AvcCBox,
|
|
}
|
|
|
|
impl Default for Avc1Box {
|
|
fn default() -> Self {
|
|
Avc1Box {
|
|
data_reference_index: 0,
|
|
width: 0,
|
|
height: 0,
|
|
horizresolution: FixedPointU16::new(0x48),
|
|
vertresolution: FixedPointU16::new(0x48),
|
|
frame_count: 1,
|
|
depth: 0x0018,
|
|
avcc: AvcCBox::default(),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl Avc1Box {
|
|
pub fn new(config: &AvcConfig) -> Self {
|
|
Avc1Box {
|
|
data_reference_index: 1,
|
|
width: config.width,
|
|
height: config.height,
|
|
horizresolution: FixedPointU16::new(0x48),
|
|
vertresolution: FixedPointU16::new(0x48),
|
|
frame_count: 1,
|
|
depth: 0x0018,
|
|
avcc: AvcCBox::new(&config.seq_param_set, &config.pic_param_set),
|
|
}
|
|
}
|
|
|
|
pub fn get_type(&self) -> BoxType {
|
|
BoxType::Avc1Box
|
|
}
|
|
|
|
pub fn get_size(&self) -> u64 {
|
|
HEADER_SIZE + 8 + 70 + self.avcc.box_size()
|
|
}
|
|
}
|
|
|
|
impl Mp4Box for Avc1Box {
|
|
fn box_type(&self) -> BoxType {
|
|
self.get_type()
|
|
}
|
|
|
|
fn box_size(&self) -> u64 {
|
|
self.get_size()
|
|
}
|
|
|
|
fn to_json(&self) -> Result<String> {
|
|
Ok(serde_json::to_string(&self).unwrap())
|
|
}
|
|
|
|
fn summary(&self) -> Result<String> {
|
|
let s = format!(
|
|
"data_reference_index={} width={} height={} frame_count={}",
|
|
self.data_reference_index, self.width, self.height, self.frame_count
|
|
);
|
|
Ok(s)
|
|
}
|
|
}
|
|
|
|
impl<R: Read + Seek> ReadBox<&mut R> for Avc1Box {
|
|
fn read_box(reader: &mut R, size: u64) -> Result<Self> {
|
|
let start = box_start(reader)?;
|
|
|
|
reader.read_u32::<BigEndian>()?; // reserved
|
|
reader.read_u16::<BigEndian>()?; // reserved
|
|
let data_reference_index = reader.read_u16::<BigEndian>()?;
|
|
|
|
reader.read_u32::<BigEndian>()?; // pre-defined, reserved
|
|
reader.read_u64::<BigEndian>()?; // pre-defined
|
|
reader.read_u32::<BigEndian>()?; // pre-defined
|
|
let width = reader.read_u16::<BigEndian>()?;
|
|
let height = reader.read_u16::<BigEndian>()?;
|
|
let horizresolution = FixedPointU16::new_raw(reader.read_u32::<BigEndian>()?);
|
|
let vertresolution = FixedPointU16::new_raw(reader.read_u32::<BigEndian>()?);
|
|
reader.read_u32::<BigEndian>()?; // reserved
|
|
let frame_count = reader.read_u16::<BigEndian>()?;
|
|
skip_bytes(reader, 32)?; // compressorname
|
|
let depth = reader.read_u16::<BigEndian>()?;
|
|
reader.read_i16::<BigEndian>()?; // pre-defined
|
|
|
|
let header = BoxHeader::read(reader)?;
|
|
let BoxHeader { name, size: s } = header;
|
|
if name == BoxType::AvcCBox {
|
|
let avcc = AvcCBox::read_box(reader, s)?;
|
|
|
|
skip_bytes_to(reader, start + size)?;
|
|
|
|
Ok(Avc1Box {
|
|
data_reference_index,
|
|
width,
|
|
height,
|
|
horizresolution,
|
|
vertresolution,
|
|
frame_count,
|
|
depth,
|
|
avcc,
|
|
})
|
|
} else {
|
|
Err(Error::InvalidData("avcc not found"))
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<W: Write> WriteBox<&mut W> for Avc1Box {
|
|
fn write_box(&self, writer: &mut W) -> Result<u64> {
|
|
let size = self.box_size();
|
|
BoxHeader::new(self.box_type(), size).write(writer)?;
|
|
|
|
writer.write_u32::<BigEndian>(0)?; // reserved
|
|
writer.write_u16::<BigEndian>(0)?; // reserved
|
|
writer.write_u16::<BigEndian>(self.data_reference_index)?;
|
|
|
|
writer.write_u32::<BigEndian>(0)?; // pre-defined, reserved
|
|
writer.write_u64::<BigEndian>(0)?; // pre-defined
|
|
writer.write_u32::<BigEndian>(0)?; // pre-defined
|
|
writer.write_u16::<BigEndian>(self.width)?;
|
|
writer.write_u16::<BigEndian>(self.height)?;
|
|
writer.write_u32::<BigEndian>(self.horizresolution.raw_value())?;
|
|
writer.write_u32::<BigEndian>(self.vertresolution.raw_value())?;
|
|
writer.write_u32::<BigEndian>(0)?; // reserved
|
|
writer.write_u16::<BigEndian>(self.frame_count)?;
|
|
// skip compressorname
|
|
write_zeros(writer, 32)?;
|
|
writer.write_u16::<BigEndian>(self.depth)?;
|
|
writer.write_i16::<BigEndian>(-1)?; // pre-defined
|
|
|
|
self.avcc.write_box(writer)?;
|
|
|
|
Ok(size)
|
|
}
|
|
}
|
|
|
|
#[derive(Debug, Clone, PartialEq, Default, Serialize)]
|
|
pub struct AvcCBox {
|
|
pub configuration_version: u8,
|
|
pub avc_profile_indication: u8,
|
|
pub profile_compatibility: u8,
|
|
pub avc_level_indication: u8,
|
|
pub length_size_minus_one: u8,
|
|
pub sequence_parameter_sets: Vec<NalUnit>,
|
|
pub picture_parameter_sets: Vec<NalUnit>,
|
|
}
|
|
|
|
impl AvcCBox {
|
|
pub fn new(sps: &[u8], pps: &[u8]) -> Self {
|
|
Self {
|
|
configuration_version: 1,
|
|
avc_profile_indication: sps[1],
|
|
profile_compatibility: sps[2],
|
|
avc_level_indication: sps[3],
|
|
length_size_minus_one: 0xff, // length_size = 4
|
|
sequence_parameter_sets: vec![NalUnit::from(sps)],
|
|
picture_parameter_sets: vec![NalUnit::from(pps)],
|
|
}
|
|
}
|
|
}
|
|
|
|
impl Mp4Box for AvcCBox {
|
|
fn box_type(&self) -> BoxType {
|
|
BoxType::AvcCBox
|
|
}
|
|
|
|
fn box_size(&self) -> u64 {
|
|
let mut size = HEADER_SIZE + 7;
|
|
for sps in self.sequence_parameter_sets.iter() {
|
|
size += sps.size() as u64;
|
|
}
|
|
for pps in self.picture_parameter_sets.iter() {
|
|
size += pps.size() as u64;
|
|
}
|
|
size
|
|
}
|
|
|
|
fn to_json(&self) -> Result<String> {
|
|
Ok(serde_json::to_string(&self).unwrap())
|
|
}
|
|
|
|
fn summary(&self) -> Result<String> {
|
|
let s = format!("avc_profile_indication={}", self.avc_profile_indication);
|
|
Ok(s)
|
|
}
|
|
}
|
|
|
|
impl<R: Read + Seek> ReadBox<&mut R> for AvcCBox {
|
|
fn read_box(reader: &mut R, size: u64) -> Result<Self> {
|
|
let start = box_start(reader)?;
|
|
|
|
let configuration_version = reader.read_u8()?;
|
|
let avc_profile_indication = reader.read_u8()?;
|
|
let profile_compatibility = reader.read_u8()?;
|
|
let avc_level_indication = reader.read_u8()?;
|
|
let length_size_minus_one = reader.read_u8()? & 0x3;
|
|
let num_of_spss = reader.read_u8()? & 0x1F;
|
|
let mut sequence_parameter_sets = Vec::with_capacity(num_of_spss as usize);
|
|
for _ in 0..num_of_spss {
|
|
let nal_unit = NalUnit::read(reader)?;
|
|
sequence_parameter_sets.push(nal_unit);
|
|
}
|
|
let num_of_ppss = reader.read_u8()?;
|
|
let mut picture_parameter_sets = Vec::with_capacity(num_of_ppss as usize);
|
|
for _ in 0..num_of_ppss {
|
|
let nal_unit = NalUnit::read(reader)?;
|
|
picture_parameter_sets.push(nal_unit);
|
|
}
|
|
|
|
skip_bytes_to(reader, start + size)?;
|
|
|
|
Ok(AvcCBox {
|
|
configuration_version,
|
|
avc_profile_indication,
|
|
profile_compatibility,
|
|
avc_level_indication,
|
|
length_size_minus_one,
|
|
sequence_parameter_sets,
|
|
picture_parameter_sets,
|
|
})
|
|
}
|
|
}
|
|
|
|
impl<W: Write> WriteBox<&mut W> for AvcCBox {
|
|
fn write_box(&self, writer: &mut W) -> Result<u64> {
|
|
let size = self.box_size();
|
|
BoxHeader::new(self.box_type(), size).write(writer)?;
|
|
|
|
writer.write_u8(self.configuration_version)?;
|
|
writer.write_u8(self.avc_profile_indication)?;
|
|
writer.write_u8(self.profile_compatibility)?;
|
|
writer.write_u8(self.avc_level_indication)?;
|
|
writer.write_u8(self.length_size_minus_one | 0xFC)?;
|
|
writer.write_u8(self.sequence_parameter_sets.len() as u8 | 0xE0)?;
|
|
for sps in self.sequence_parameter_sets.iter() {
|
|
sps.write(writer)?;
|
|
}
|
|
writer.write_u8(self.picture_parameter_sets.len() as u8)?;
|
|
for pps in self.picture_parameter_sets.iter() {
|
|
pps.write(writer)?;
|
|
}
|
|
Ok(size)
|
|
}
|
|
}
|
|
|
|
#[derive(Debug, Clone, PartialEq, Default, Serialize)]
|
|
pub struct NalUnit {
|
|
pub bytes: Vec<u8>,
|
|
}
|
|
|
|
impl From<&[u8]> for NalUnit {
|
|
fn from(bytes: &[u8]) -> Self {
|
|
Self {
|
|
bytes: bytes.to_vec(),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl NalUnit {
|
|
fn size(&self) -> usize {
|
|
2 + self.bytes.len()
|
|
}
|
|
|
|
fn read<R: Read + Seek>(reader: &mut R) -> Result<Self> {
|
|
let length = reader.read_u16::<BigEndian>()? as usize;
|
|
let mut bytes = vec![0u8; length];
|
|
reader.read(&mut bytes)?;
|
|
Ok(NalUnit { bytes })
|
|
}
|
|
|
|
fn write<W: Write>(&self, writer: &mut W) -> Result<u64> {
|
|
writer.write_u16::<BigEndian>(self.bytes.len() as u16)?;
|
|
writer.write(&self.bytes)?;
|
|
Ok(self.size() as u64)
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
use crate::mp4box::BoxHeader;
|
|
use std::io::Cursor;
|
|
|
|
#[test]
|
|
fn test_avc1() {
|
|
let src_box = Avc1Box {
|
|
data_reference_index: 1,
|
|
width: 320,
|
|
height: 240,
|
|
horizresolution: FixedPointU16::new(0x48),
|
|
vertresolution: FixedPointU16::new(0x48),
|
|
frame_count: 1,
|
|
depth: 24,
|
|
avcc: AvcCBox {
|
|
configuration_version: 1,
|
|
avc_profile_indication: 100,
|
|
profile_compatibility: 0,
|
|
avc_level_indication: 13,
|
|
length_size_minus_one: 3,
|
|
sequence_parameter_sets: vec![NalUnit {
|
|
bytes: vec![
|
|
0x67, 0x64, 0x00, 0x0D, 0xAC, 0xD9, 0x41, 0x41, 0xFA, 0x10, 0x00, 0x00,
|
|
0x03, 0x00, 0x10, 0x00, 0x00, 0x03, 0x03, 0x20, 0xF1, 0x42, 0x99, 0x60,
|
|
],
|
|
}],
|
|
picture_parameter_sets: vec![NalUnit {
|
|
bytes: vec![0x68, 0xEB, 0xE3, 0xCB, 0x22, 0xC0],
|
|
}],
|
|
},
|
|
};
|
|
let mut buf = Vec::new();
|
|
src_box.write_box(&mut buf).unwrap();
|
|
assert_eq!(buf.len(), src_box.box_size() as usize);
|
|
|
|
let mut reader = Cursor::new(&buf);
|
|
let header = BoxHeader::read(&mut reader).unwrap();
|
|
assert_eq!(header.name, BoxType::Avc1Box);
|
|
assert_eq!(src_box.box_size(), header.size);
|
|
|
|
let dst_box = Avc1Box::read_box(&mut reader, header.size).unwrap();
|
|
assert_eq!(src_box, dst_box);
|
|
}
|
|
}
|