Module boundary 

Boundary conversions between FFmpeg’s bindgen integers and the unified mediadecode vocabulary.

Centralised so the rest of the crate never compares raw AVPixelFormat integers against literals or transmutes back into the bindgen enum (UB hazard when the value isn’t in the enum’s discriminant set).

Structs

SendPayloadTooLarge

Payload for PacketBuildError::SendPayloadTooLarge.

SendSideDataTooLarge

Payload for PacketBuildError::SendSideDataTooLarge.

SideDataAlloc

Payload for PacketBuildError::SideDataAlloc.

UnknownSideData

Payload for PacketBuildError::UnknownSideData.

Enums

MediaKind

What a track is, folded from AVCodecParameters.codec_type read as the integer it is on the wire.

PacketBuildError

Why a portable packet could not be rebuilt as an AVPacket.

Functions

attachment_packet_from_ffmpeg

[attachment_packet_from_ffmpeg_as] on the view lane.

audio_packet_from_ffmpeg

Carries a borrowed [ffmpeg::Packet] out as a mediadecode::packet::AudioPacket. Same shape as video_packet_from_ffmpeg — shared payload, forwarded metadata, default budgets.

audio_packet_from_ffmpeg_in

[audio_packet_from_ffmpeg_as] on the view lane.

data_packet_from_ffmpeg_in

[data_packet_from_ffmpeg_as] on the view lane.

empty_audio_frame

[empty_audio_frame_as] on the view lane.

empty_owned_audio_frame

[empty_audio_frame_as] on the owned lane.

empty_owned_subtitle_frame

[empty_subtitle_frame_as] on the owned lane.

empty_owned_video_frame

[empty_video_frame_as] on the owned lane.

empty_subtitle_frame

[empty_subtitle_frame_as] on the view lane.

empty_video_frame

[empty_video_frame_as] on the view lane — the destination a FfmpegVideoStreamDecoder fills.

ffmpeg_packet_from_audio_packet

Builds an ffmpeg::Packet from a [mediadecode::AudioPacket]. Same shape as ffmpeg_packet_from_video_packet — bytes are copied; pts/dts/duration/flags/stream_index and side data are forwarded. Same failure modes.

ffmpeg_packet_from_owned_audio_packet

ffmpeg_packet_from_audio_packet on the owned lane.

ffmpeg_packet_from_owned_subtitle_packet

ffmpeg_packet_from_subtitle_packet on the owned lane.

ffmpeg_packet_from_owned_video_packet

ffmpeg_packet_from_video_packet on the owned lane.

ffmpeg_packet_from_subtitle_packet

Builds an ffmpeg::Packet from a [mediadecode::SubtitlePacket]. Bytes copied; pts/duration/flags/stream_index and side data forwarded. Subtitle packets have no dts in the mediadecode model. Same failure modes as ffmpeg_packet_from_video_packet.

ffmpeg_packet_from_video_packet

Builds an ffmpeg::Packet from a [mediadecode::VideoPacket] parameterized by crate::extras::VideoPacketExtra and FfmpegBytes.

from_av_pixel_format

Maps a raw AVFrame.format integer (i.e. the value of an AVPixelFormat enum variant) onto mediadecode::PixelFormat.

is_hardware_pix_fmt

Returns true when raw is one of FFmpeg’s hardware-frame markers (AV_PIX_FMT_VIDEOTOOLBOX / _VAAPI / _CUDA / _D3D11 / _DRM_PRIME / _MEDIACODEC / _VULKAN). Used by the HW probe to identify GPU-resident frames before triggering av_hwframe_transfer_data.

owned_attachment_packet_from_ffmpeg

attachment_packet_from_ffmpeg on the owned lane, borrowing its source.

owned_audio_packet_from_ffmpeg_in

audio_packet_from_ffmpeg with the stream’s timebase and explicit budgets.

owned_data_packet_from_ffmpeg_in

data_packet_from_ffmpeg_in on the owned lane, borrowing its source.

owned_subtitle_packet_from_ffmpeg_in

subtitle_packet_from_ffmpeg with the stream’s timebase and explicit budgets.

owned_video_packet_from_ffmpeg_in

video_packet_from_ffmpeg with the stream’s timebase and explicit budgets.

subtitle_packet_from_ffmpeg

Carries a borrowed [ffmpeg::Packet] out as a mediadecode::packet::SubtitlePacket. Subtitle packets have no dts in the mediadecode model; everything else mirrors video_packet_from_ffmpeg, shared payload included.

subtitle_packet_from_ffmpeg_in

[subtitle_packet_from_ffmpeg_as] on the view lane.

video_packet_from_ffmpeg

Carries a borrowed [ffmpeg::Packet] out as a mediadecode::packet::VideoPacket on the view lane: the payload is a refcounted window onto the source AVPacket’s own buffer, which is why the delivered packet’s lifetime is answerable to libavformat’s — see the two carrier lanes. For a packet that must outlive the demuxer, ask for the owned lane by name: video_packet_from_ffmpeg_as::<Owned>, whose payload is copied and which the D-seat amputation contract governs.

video_packet_from_ffmpeg_in

[video_packet_from_ffmpeg_as] on the view lane, with the stream’s timebase stamped onto every timestamp.