CHANGELOG.rst

Changelog

We are operating with semantic versioning.

v17.0.2 (next)

Fixes:

v17.0.1

Fixes:

• A cdivision decorator for faster division.
• Adjust tests so they work with 8.1 by :gh-user:`strophy`.
• Make VideoFormat.components lazy by :gh-user:`WyattBlue`.
• Break reference cycle StreamContainer.get() by :gh-user:`lgeiger`.
• Expose threads in filter graph by :gh-user:`lgeiger`.
• Fix crash with container closing with GC by :gh-user:`WyattBlue`.
• Fix "Writing packets to data stream broken in av>=17" regression :issue:`2223` by :gh-user:`WyattBlue`.
• Remove _send_packet_and_recv to simplify decode() by :gh-user:`lgeiger`.
• Reuse a AVPacket read buffer when demuxing by :gh-user:`lgeiger` and :gh-user:`WyattBlue`.
• Use AVCodecContext.frame_num instead of counting ourselves by :gh-user:`WyattBlue`.
• Use av_channel_layout_compare() for AudioLayout.__eq__() by :gh-user:`WyattBlue`.

v17.0.0

Major:

• Limited API binary wheels are now built.
• 3.13t (free-threading) will be dropped because of storage limitations.
• When an FFmpeg C function indicates an error, raise av.ArgumentError instead of ValueError/av.ValueError. This helps disambiguate why an exception is being thrown.
• Save space by removing libaom (av1 encoder/decoder); dav1d, stvav1, and hardware, are available alternatives.

Features:

• Add OutputContainer.add_mux_stream() for creating codec-context-free streams, enabling muxing of pre-encoded packets without an encoder, addressing :issue:`1970` by :gh-user:`WyattBlue`.
• Use zero-copy for Packet init from buffer data by :gh-user:`WyattBlue` in (:pr:`2199`).
• Expose AVIndexEntry by :gh-user:`Queuecumber` in (:pr:`2136`).
• Preserving hardware memory during cuvid decoding, exporting/importing via dlpack by :gh-user:`WyattBlue` in (:pr:`2155`).
• Add enumerate_input_devices and enumerate_output_devices API by :gh-user:`WyattBlue` in (:pr:`2174`).
• Add ColorTrc and ColorPrimaries enums; add color_trc and color_primaries properties to VideoFrame; add dst_color_trc and dst_color_primaries parameters to VideoFrame.reformat(), addressing :issue:`1968` by :gh-user:`WyattBlue` in (:pr:`2175`).
• Add multithreaded reformatting and reduce Python overhead by replacing sws_scale with sws_scale_frame, skipping unnecessary reformats, and minimizing Python interactions by :gh-user:`lgeiger`.
• Prevent data copy in VideoFrame.to_ndarray() for padded frames by :gh-user:`lgeiger` in (:pr:`2190`).

Fixes:

• Fix :issue:`2149` by :gh-user:`WyattBlue` in (:pr:`2155`).
• Fix packet typing based on stream and specify InputContainer.demux based on incoming stream by :gh-user:`ntjohnson1` in (:pr:`2134`).
• Fix memory growth when remuxing with add_stream_from_template by skipping avcodec_open2 for template-initialized codec contexts, addressing :issue:`2135` by :gh-user:`WyattBlue`.
• Explicitly disable OpenSSL in source builds (scripts/build-deps) to prevent accidental OpenSSL linkage that breaks FIPS-enabled systems, addressing :issue:`1972`.
• Add missing SWS_SPLINE interpolation by :gh-user:`lgeiger` in (:pr:`2188`).

v16.1.0

Features:

• Add support for Intel QSV codecs by :gh-user:`ladaapp`.
• Add AMD AMF hardware decoding by :gh-user:`ladaapp2`.
• Add subtitle encoding support by :gh-user:`skeskinen` in (:pr:`2050`).
• Add read/write access to PacketSideData by :gh-user:`skeskinen` in (:pr:`2051`).
• Add yuv422p support for video frame to_ndarray and from_ndarray by :gh-user:`wader` in (:pr:`2054`).
• Add binding for avcodec_find_best_pix_fmt_of_list() by :gh-user:`ndeybach` in (:pr:`2058`).

Fixes:

• Fix #2036, #2053, #2057 by :gh-user:`WyattBlue`.

v16.0.1

Fixes:

• Add new hwaccel enums by :gh-user:`WyattBlue` in (:pr:`2030`).

v16.0.0

Major:

• Drop Python 3.9, Support Python 3.14.
• Drop support for i686 Linux.

Features:

• Add Filter.Context.process_command() method by :gh-user:`caffeinism` in (:pr:`2000`).
• Add packet side-data handling mechanism by :gh-user:`tikuma-lsuhsc` in (:pr:`2003`).
• Implemented set_chapters method by :gh-user:`DE-AI` in (:pr:`2004`).
• Declare free-threaded support and support 3.13t by :gh-user:`ngoldbaum` in (:pr:`2005`).
• Add writable and copyable attachment and data streams by :gh-user:`skeskinen` in (:pr:`2026`).

Fixes:

• Declare free-threaded support and support 3.13t by :gh-user:`ngoldbaum` in (:pr:`2005`).
• Allow None in FilterContext.push() type stub by :gh-user:`velsinki` in (:pr:`2015`).
• Fix typos

15.X and Below

15.X Changelog <https://pyav.basswood-io.com/docs/15.1/development/changelog.html>