Update for FFmpeg 6

Remove flags and fields that were removed in FFmpeg 6, and rename AV_CODEC_CAP_AUTO_THREADS to AV_CODEC_CAP_OTHER_THREADS. These changes reflect deprecations made as of FFmpeg 4.4.
Remove AV_FRAME_DATA_SEI_UNREGISTERED workaround for FFmpeg < 4.4

Author: uvjustin

av/codec/codec.pyx

@@ -52,7 +52,6 @@ Capabilities = define_enum('Capabilities', 'av.codec', (
         """Codec uses get_buffer() for allocating buffers and supports custom allocators.
         If not set, it might not use get_buffer() at all or use operations that
         assume the buffer was allocated by avcodec_default_get_buffer."""),
-    ('TRUNCATED', lib.AV_CODEC_CAP_TRUNCATED),
     ('HWACCEL', 1 << 4),
     ('DELAY', lib.AV_CODEC_CAP_DELAY,
         """Encoder or decoder requires flushing with NULL input at the end in order to
@@ -102,7 +101,7 @@ Capabilities = define_enum('Capabilities', 'av.codec', (
         """Codec supports slice-based (or partition-based) multithreading."""),
     ('PARAM_CHANGE', lib.AV_CODEC_CAP_PARAM_CHANGE,
         """Codec supports changed parameters at any point."""),
-    ('AUTO_THREADS', lib.AV_CODEC_CAP_AUTO_THREADS,
+    ('OTHER_THREADS', lib.AV_CODEC_CAP_OTHER_THREADS,
         """Codec supports avctx->thread_count == 0 (auto)."""),
     ('VARIABLE_FRAME_SIZE', lib.AV_CODEC_CAP_VARIABLE_FRAME_SIZE,
         """Audio encoder supports receiving a different number of samples in each call."""),
@@ -114,10 +113,6 @@ Capabilities = define_enum('Capabilities', 'av.codec', (
         the stream.
         A decoder marked with this flag should only be used as last resort
         choice for probing."""),
-    ('INTRA_ONLY', lib.AV_CODEC_CAP_INTRA_ONLY,
-        """Codec is intra only."""),
-    ('LOSSLESS', lib.AV_CODEC_CAP_LOSSLESS,
-        """Codec is lossless."""),
     ('HARDWARE', lib.AV_CODEC_CAP_HARDWARE,
         """Codec is backed by a hardware implementation. Typically used to
         identify a non-hwaccel hardware decoder. For information about hwaccels, use
@@ -312,7 +307,6 @@ cdef class Codec(object):
 
     draw_horiz_band = capabilities.flag_property('DRAW_HORIZ_BAND')
     dr1 = capabilities.flag_property('DR1')
-    truncated = capabilities.flag_property('TRUNCATED')
     hwaccel = capabilities.flag_property('HWACCEL')
     delay = capabilities.flag_property('DELAY')
     small_last_frame = capabilities.flag_property('SMALL_LAST_FRAME')
@@ -324,11 +318,9 @@ cdef class Codec(object):
     frame_threads = capabilities.flag_property('FRAME_THREADS')
     slice_threads = capabilities.flag_property('SLICE_THREADS')
     param_change = capabilities.flag_property('PARAM_CHANGE')
-    auto_threads = capabilities.flag_property('AUTO_THREADS')
+    other_threads = capabilities.flag_property('OTHER_THREADS')
     variable_frame_size = capabilities.flag_property('VARIABLE_FRAME_SIZE')
     avoid_probing = capabilities.flag_property('AVOID_PROBING')
-    # intra_only = capabilities.flag_property('INTRA_ONLY')  # Dupes.
-    # lossless = capabilities.flag_property('LOSSLESS')  # Dupes.
     hardware = capabilities.flag_property('HARDWARE')
     hybrid = capabilities.flag_property('HYBRID')
     encoder_reordered_opaque = capabilities.flag_property('ENCODER_REORDERED_OPAQUE')

av/codec/context.pyx

@@ -96,9 +96,6 @@ Flags = define_enum('Flags', __name__, (
         """Only decode/encode grayscale."""),
     ('PSNR', lib.AV_CODEC_FLAG_PSNR,
         """error[?] variables will be set during encoding."""),
-    ('TRUNCATED', lib.AV_CODEC_FLAG_TRUNCATED,
-        """Input bitstream might be truncated at a random location
-        instead of only at frame boundaries."""),
     ('INTERLACED_DCT', lib.AV_CODEC_FLAG_INTERLACED_DCT,
         """Use interlaced DCT."""),
     ('LOW_DELAY', lib.AV_CODEC_FLAG_LOW_DELAY,
@@ -122,8 +119,6 @@ Flags2 = define_enum('Flags2', __name__, (
         """Skip bitstream encoding."""),
     ('LOCAL_HEADER', lib.AV_CODEC_FLAG2_LOCAL_HEADER,
         """Place global headers at every keyframe instead of in extradata."""),
-    ('DROP_FRAME_TIMECODE', lib.AV_CODEC_FLAG2_DROP_FRAME_TIMECODE,
-        """Timecode is in drop frame format. DEPRECATED!!!!"""),
     ('CHUNKS', lib.AV_CODEC_FLAG2_CHUNKS,
         """Input bitstream might be truncated at a packet boundaries
         instead of only at frame boundaries."""),
@@ -168,10 +163,6 @@ cdef class CodecContext(object):
         self.ptr.thread_count = 0
         self.ptr.thread_type = 2
 
-        # Use "ass" format for subtitles (default as of FFmpeg 5.0), not the
-        # deprecated "ass_with_timings" formats.
-        self.ptr.sub_text_format = 0
-
     def _get_flags(self):
         return self.ptr.flags
 
@@ -195,7 +186,6 @@ cdef class CodecContext(object):
     loop_filter = flags.flag_property('LOOP_FILTER')
     gray = flags.flag_property('GRAY')
     psnr = flags.flag_property('PSNR')
-    truncated = flags.flag_property('TRUNCATED')
     interlaced_dct = flags.flag_property('INTERLACED_DCT')
     low_delay = flags.flag_property('LOW_DELAY')
     global_header = flags.flag_property('GLOBAL_HEADER')
@@ -219,7 +209,6 @@ cdef class CodecContext(object):
     fast = flags2.flag_property('FAST')
     no_output = flags2.flag_property('NO_OUTPUT')
     local_header = flags2.flag_property('LOCAL_HEADER')
-    drop_frame_timecode = flags2.flag_property('DROP_FRAME_TIMECODE')
     chunks = flags2.flag_property('CHUNKS')
     ignore_crop = flags2.flag_property('IGNORE_CROP')
     show_all = flags2.flag_property('SHOW_ALL')
@@ -273,13 +262,6 @@ cdef class CodecContext(object):
                 raise ValueError('CodecContext is already open.')
             return
 
-        # We might pass partial frames.
-        # TODO: What is this for?! This is causing problems with raw decoding
-        # as the internal parser doesn't seem to see a frame until it sees
-        # the next one.
-        # if self.codec.ptr.capabilities & lib.CODEC_CAP_TRUNCATED:
-        #     self.ptr.flags |= lib.CODEC_FLAG_TRUNCATED
-
         # TODO: Do this better.
         cdef _Dictionary options = Dictionary()
         options.update(self.options or {})

av/container/core.pyx

@@ -157,8 +157,6 @@ Flags = define_enum('Flags', __name__, (
         This flag is mainly intended for testing."""),
     ('SORT_DTS', lib.AVFMT_FLAG_SORT_DTS,
         "Try to interleave outputted packets by dts (using this flag can slow demuxing down)."),
-    ('PRIV_OPT', lib.AVFMT_FLAG_PRIV_OPT,
-        "Enable use of private options by delaying codec open (this could be made default once all code is converted)."),
     ('FAST_SEEK', lib.AVFMT_FLAG_FAST_SEEK,
         "Enable fast, but inaccurate seeks for some formats."),
     ('SHORTEST', lib.AVFMT_FLAG_SHORTEST,
@@ -329,7 +327,6 @@ cdef class Container(object):
     flush_packets = flags.flag_property('FLUSH_PACKETS')
     bit_exact = flags.flag_property('BITEXACT')
     sort_dts = flags.flag_property('SORT_DTS')
-    priv_opt = flags.flag_property('PRIV_OPT')
     fast_seek = flags.flag_property('FAST_SEEK')
     shortest = flags.flag_property('SHORTEST')
     auto_bsf = flags.flag_property('AUTO_BSF')

docs/api/codec.rst

@@ -45,9 +45,6 @@ Flags
 
     Wraps :ffmpeg:`AVCodec.capabilities` (``AV_CODEC_CAP_*``).
 
-    Note that ``ffmpeg -codecs`` prefers the properties versions of
-    ``INTRA_ONLY`` and ``LOSSLESS``.
-
     .. enumtable:: av.codec.codec.Capabilities
         :class: av.codec.codec.Codec
 

include/libavcodec/avcodec.pxd

@@ -7,14 +7,6 @@ from libc.stdint cimport (
 
 
 cdef extern from "libavcodec/avcodec.h" nogil:
-    """
-    // AV_FRAME_DATA_SEI_UNREGISTERED available since version 56.54.100 of libavutil (FFmpeg >= 4.4)
-    #define HAS_AV_FRAME_DATA_SEI_UNREGISTERED  (LIBAVUTIL_VERSION_INT >= 3683940)
-
-    #if !HAS_AV_FRAME_DATA_SEI_UNREGISTERED
-        #define AV_FRAME_DATA_SEI_UNREGISTERED -1
-    #endif
-    """
 
     # custom
     cdef set pyav_get_available_codecs()
@@ -39,7 +31,6 @@ cdef extern from "libavcodec/avcodec.h" nogil:
     cdef enum:
         AV_CODEC_CAP_DRAW_HORIZ_BAND
         AV_CODEC_CAP_DR1
-        AV_CODEC_CAP_TRUNCATED
         # AV_CODEC_CAP_HWACCEL
         AV_CODEC_CAP_DELAY
         AV_CODEC_CAP_SMALL_LAST_FRAME
@@ -51,11 +42,9 @@ cdef extern from "libavcodec/avcodec.h" nogil:
         AV_CODEC_CAP_FRAME_THREADS
         AV_CODEC_CAP_SLICE_THREADS
         AV_CODEC_CAP_PARAM_CHANGE
-        AV_CODEC_CAP_AUTO_THREADS
+        AV_CODEC_CAP_OTHER_THREADS
         AV_CODEC_CAP_VARIABLE_FRAME_SIZE
         AV_CODEC_CAP_AVOID_PROBING
-        AV_CODEC_CAP_INTRA_ONLY
-        AV_CODEC_CAP_LOSSLESS
         AV_CODEC_CAP_HARDWARE
         AV_CODEC_CAP_HYBRID
         AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE
@@ -76,7 +65,6 @@ cdef extern from "libavcodec/avcodec.h" nogil:
         AV_CODEC_FLAG_LOOP_FILTER
         AV_CODEC_FLAG_GRAY
         AV_CODEC_FLAG_PSNR
-        AV_CODEC_FLAG_TRUNCATED
         AV_CODEC_FLAG_INTERLACED_DCT
         AV_CODEC_FLAG_LOW_DELAY
         AV_CODEC_FLAG_GLOBAL_HEADER
@@ -89,7 +77,6 @@ cdef extern from "libavcodec/avcodec.h" nogil:
         AV_CODEC_FLAG2_FAST
         AV_CODEC_FLAG2_NO_OUTPUT
         AV_CODEC_FLAG2_LOCAL_HEADER
-        AV_CODEC_FLAG2_DROP_FRAME_TIMECODE
         AV_CODEC_FLAG2_CHUNKS
         AV_CODEC_FLAG2_IGNORE_CROP
         AV_CODEC_FLAG2_SHOW_ALL
@@ -224,9 +211,6 @@ cdef extern from "libavcodec/avcodec.h" nogil:
         int frame_size
         int channel_layout
 
-        # Subtitles.
-        int sub_text_format
-
         #: .. todo:: ``get_buffer`` is deprecated for get_buffer2 in newer versions of FFmpeg.
         int get_buffer(AVCodecContext *ctx, AVFrame *frame)
         void release_buffer(AVCodecContext *ctx, AVFrame *frame)

include/libavformat/avformat.pxd

@@ -146,7 +146,6 @@ cdef extern from "libavformat/avformat.h" nogil:
         AVFMT_FLAG_FLUSH_PACKETS
         AVFMT_FLAG_BITEXACT
         AVFMT_FLAG_SORT_DTS
-        AVFMT_FLAG_PRIV_OPT
         AVFMT_FLAG_FAST_SEEK
         AVFMT_FLAG_SHORTEST
         AVFMT_FLAG_AUTO_BSF

tests/test_subtitles.py

@@ -24,7 +24,11 @@ def test_movtext(self):
 
         sub = subset[0]
         self.assertIsInstance(sub, AssSubtitle)
-        self.assertEqual(sub.ass, "0,0,Default,,0,0,0,,- Test 1.\\N- Test 2.")
+        # The default subtitle format changed in FFmpeg 5.0
+        if av.library_versions["libavcodec"] >= (59, 18):
+            self.assertEqual(sub.ass, "0,0,Default,,0,0,0,,- Test 1.\\N- Test 2.")
+        else:
+            self.assertEqual(sub.ass, "Dialogue: 0,0:00:00.97,0:00:02.54,Default,,0,0,0,,- Test 1.\\N- Test 2.\r\n")
 
     def test_vobsub(self):