All Known Implementing Classes:

DefaultContentMetadata
```
public interface ContentMetadata
```
Interface for an immutable snapshot of keyed metadata.

Field Summary

Fields
Modifier and Type	Field	Description
`static String`	`KEY_CONTENT_LENGTH`	Key for content length in bytes (type: long).
`static String`	`KEY_CUSTOM_PREFIX`	Prefix for custom metadata keys.
`static String`	`KEY_REDIRECTED_URI`	Key for redirected uri (type: String).

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`contains(String key)`	Returns whether the metadata is available.
`byte[]`	`get(String key, byte[] defaultValue)`	Returns a metadata value.
`long`	`get(String key, long defaultValue)`	Returns a metadata value.
`String`	`get(String key, String defaultValue)`	Returns a metadata value.
`static long`	`getContentLength(ContentMetadata contentMetadata)`	Returns the value stored under `KEY_CONTENT_LENGTH`, or `C.LENGTH_UNSET` if not set.
`static Uri`	`getRedirectedUri(ContentMetadata contentMetadata)`	Returns the value stored under `KEY_REDIRECTED_URI` as a `Uri`, or {code null} if not set.

- Field Detail
  - KEY_CUSTOM_PREFIX
```
static final String KEY_CUSTOM_PREFIX
```
    Prefix for custom metadata keys. Applications can use keys starting with this prefix without any risk of their keys colliding with ones defined by the ExoPlayer library.
    
    See Also:
    
    Constant Field Values
  - KEY_REDIRECTED_URI
```
static final String KEY_REDIRECTED_URI
```
    Key for redirected uri (type: String).
    
    See Also:
    
    Constant Field Values
  - KEY_CONTENT_LENGTH
```
static final String KEY_CONTENT_LENGTH
```
    Key for content length in bytes (type: long).
    
    See Also:
    
    Constant Field Values
- Method Detail
  - get
```
@Nullable
byte[] get(String key,
           @Nullable
           byte[] defaultValue)
```
    Returns a metadata value.
    
    Parameters:
    
    key - Key of the metadata to be returned.
    
    defaultValue - Value to return if the metadata doesn't exist.
    
    Returns:
    
    The metadata value.
  - get
```
@Nullable
String get(String key,
           @Nullable
           String defaultValue)
```
    Returns a metadata value.
    
    Parameters:
    
    key - Key of the metadata to be returned.
    
    defaultValue - Value to return if the metadata doesn't exist.
    
    Returns:
    
    The metadata value.
  - get
```
long get(String key,
         long defaultValue)
```
    Returns a metadata value.
    
    Parameters:
    
    key - Key of the metadata to be returned.
    
    defaultValue - Value to return if the metadata doesn't exist.
    
    Returns:
    
    The metadata value.
  - contains
```
boolean contains(String key)
```
    Returns whether the metadata is available.
  - getContentLength
```
static long getContentLength(ContentMetadata contentMetadata)
```
    Returns the value stored under KEY_CONTENT_LENGTH, or C.LENGTH_UNSET if not set.
  - getRedirectedUri
```
@Nullable
static Uri getRedirectedUri(ContentMetadata contentMetadata)
```
    Returns the value stored under KEY_REDIRECTED_URI as a Uri, or {code null} if not set.

Interface ContentMetadata

Field Summary

Method Summary

Field Detail

KEY_CUSTOM_PREFIX

KEY_REDIRECTED_URI

KEY_CONTENT_LENGTH

Method Detail

get

get

get

contains

getContentLength

getRedirectedUri