AVIndex, fix const warns

av/index.pxd

@@ -2,8 +2,8 @@ cimport libav as lib
 
 
 cdef class IndexEntry:
-    cdef lib.AVIndexEntry *ptr
-    cdef _init(self, lib.AVIndexEntry *ptr)
+    cdef const lib.AVIndexEntry *ptr
+    cdef _init(self, const lib.AVIndexEntry *ptr)
 
 cdef class IndexEntries:
     cdef lib.AVStream *stream_ptr

av/index.py

@@ -6,7 +6,7 @@
 
 
 @cython.cfunc
-def wrap_index_entry(ptr: cython.pointer[lib.AVIndexEntry]) -> IndexEntry:
+def wrap_index_entry(ptr: cython.pointer[cython.const[lib.AVIndexEntry]]) -> IndexEntry:
     obj: IndexEntry = IndexEntry(_cinit_bypass_sentinel)
     obj._init(ptr)
     return obj
@@ -26,7 +26,7 @@ def __cinit__(self, sentinel):
             raise RuntimeError("cannot manually instantiate IndexEntry")
 
     @cython.cfunc
-    def _init(self, ptr: cython.pointer[lib.AVIndexEntry]):
+    def _init(self, ptr: cython.pointer[cython.const[lib.AVIndexEntry]]):
         self.ptr = ptr
 
     def __repr__(self):
@@ -110,19 +110,17 @@ def __getitem__(self, index):
             if index < 0 or index >= n:
                 raise IndexError(f"Index entries {index} out of bounds for size {n}")
 
-            c_idx = cython.declare(cython.int, index)
+            c_idx: cython.int = index
+            entry: cython.pointer[cython.const[lib.AVIndexEntry]]
             with cython.nogil:
                 entry = lib.avformat_index_get_entry(self.stream_ptr, c_idx)
-
             if entry == cython.NULL:
                 raise IndexError("index entry not found")
 
             return wrap_index_entry(entry)
-
         elif isinstance(index, slice):
             start, stop, step = index.indices(len(self))
             return [self[i] for i in range(start, stop, step)]
-
         else:
             raise TypeError("Index must be an integer or a slice")
 
@@ -135,8 +133,8 @@ def search_timestamp(
 
         Returns an index into this object, or ``-1`` if no match is found.
         """
-        c_timestamp = cython.declare(int64_t, timestamp)
-        flags = cython.declare(cython.int, 0)
+        c_timestamp: int64_t = timestamp
+        flags: cython.int = 0
 
         if backward:
             flags |= lib.AVSEEK_FLAG_BACKWARD

docs/overview/installation.rst

@@ -24,7 +24,7 @@ See the `Conda quick install <https://docs.conda.io/projects/conda/en/latest/use
 Bring your own FFmpeg
 ---------------------
 
-PyAV can also be compiled against your own build of FFmpeg (version ``7.0`` or higher). You can force installing PyAV from source by running:
+PyAV can also be compiled against your own build of FFmpeg (version ``8.0`` or higher). You can force installing PyAV from source by running:
 
 .. code-block:: bash
     pip install av --no-binary av
@@ -54,20 +54,6 @@ On **MacOS**, Homebrew_ saves the day::
 .. _homebrew: http://brew.sh/
 
 
-Ubuntu >= 18.04 LTS
-^^^^^^^^^^^^^^^^^^^
-
-On **Ubuntu 18.04 LTS** everything can come from the default sources::
-
-    # General dependencies
-    sudo apt-get install -y python-dev pkg-config
-
-    # Library components
-    sudo apt-get install -y \
-        libavformat-dev libavcodec-dev libavdevice-dev \
-        libavutil-dev libswscale-dev libswresample-dev libavfilter-dev
-
-
 Windows
 ^^^^^^^