FFmpeg: Modules

oASS styles

oASS functions

oend of Dialogue Event

olibavcodec Encoding/Decoding Library

|oDecoding

||\Frame parsing

|oEncoding

|oCodecs

||oNative Codecs

||oExternal library wrappers

||\Hardware Accelerators bridge

|| oDirect3D11

|| oDXVA2

|| oVA API Decoding

|| oVDPAU Decoder and Renderer VDPAU hardware acceleration has two modules

|| \XvMC

|oInternal

|osend/receive encoding and decoding API overview The avcodec_send_packet()/avcodec_receive_frame()/avcodec_send_frame()/ avcodec_receive_packet() functions provide an encode/decode API, which decouples input and output

|oCore functions/structures. Basic definitions, functions for querying libavcodec capabilities, allocating core structures, etc

||oAVPacket Types and functions for working with AVPacket

||oAVHWAccel

||\AVPicture Functions for working with AVPicture

|\Utility functions Miscellaneous utility functions related to both encoding and decoding (or neither)

| oPixel formats Functions for working with pixel formats

| \FFT functions

olibavdevice Special devices muxing/demuxing library

olibavfilter Graph-based frame editing library

|oBuffer sink API

||\Buffer sink accessors Get the properties of the stream

|\Buffer source API

olibavformat I/O and Muxing/Demuxing Library

|oDemuxing Demuxers read a media file and split it into chunks of data (packets)

|oMuxing Muxers take encoded data in the form of AVPackets and write it into files or other output bytestreams in the specified container format

|oI/O Read/Write

|oDemuxers

||oNative Demuxers

||\External library wrappers

|oI/O Protocols

|oInternal

|oPublic Metadata API The metadata API allows libavformat to export metadata tags to a client application when demuxing

|oCore functions Functions for querying libavformat capabilities, allocating core structures, etc

|\Utility functions Miscellaneous utility functions related to both muxing and demuxing (or neither)

| \RIFF FourCCs Get the tables mapping RIFF FourCCs to libavcodec AVCodecIDs

olibavresample Libavresample (lavr) is a library that handles audio resampling, sample format conversion and mixing

olibavutil Common code shared across all FFmpeg libraries

|oCrypto and Hashing

||oAES

||oBase64

||oBlowfish

||oCAMELLIA

||oCAST5

||oDES

||oHash Functions Hash functions useful in multimedia

|||oAdler-32 Adler-32 hash function implementation

|||oCRC CRC (Cyclic Redundancy Check) hash function implementation

|||oGeneric Hashing API An abstraction layer for all hash functions supported by libavutil

|||oMD5 MD5 hash function implementation

|||oMurmur3 MurmurHash3 hash function implementation

|||oRIPEMD RIPEMD hash function implementation

|||oSHA SHA-1 and SHA-256 (Secure Hash Algorithm) hash function implementations

|||\SHA-512 SHA-512 (Secure Hash Algorithm) hash function implementations

||oHMAC

||oLZO

||oRC4

||oTEA

||oTWOFISH

||\XTEA

|oMathematics Mathematical utilities for working with timestamp and time base

||\AVRational Rational number calculation

|oString Manipulation

|oMemory Management Utilities for manipulating memory

||oAlignment Macros Helper macros for declaring aligned variables

||oFunction Attributes Function attributes applicable to memory handling functions

||oHeap Management Functions responsible for allocating, freeing, and copying memory

||oDynamic Array Utilities to make an array grow when needed

||\Miscellaneous Functions Other functions related to memory allocation

|oData Structures

||oAVBuffer AVBuffer is an API for reference-counted data buffers

||oAVBufferPool AVBufferPool is an API for a lock-free thread-safe pool of AVBuffers

||oAVFrame AVFrame is an abstraction for reference-counted raw multimedia data

|||\AV_FRAME_FLAGS Flags describing additional frame properties

||oAVOptions AVOptions provide a generic system to declare options on arbitrary structs ("objects")

|||oEvaluating option strings This group of functions can be used to evaluate option strings and get numbers out of them

|||oOption setting functions Those functions set the field of obj with the given name to value

|||\Option getting functions Those functions get a value of the option with the given name from an object

||oAVDictionary Simple key:value store

||\AVTree Low-complexity tree container

|oVideo related

||oDisplay transformation matrix functions The display transformation matrix specifies an affine transformation that should be applied to video frames for correct presentation

||oSpherical video mapping A spherical video file contains surfaces that need to be mapped onto a sphere

||\Stereo3D types and functions A stereoscopic video file consists in multiple views embedded in a single frame, usually describing two views of a scene

|oAudio related

||oAudio FIFO Buffer

||oAudio channel masks A channel layout is a 64-bits integer with a bit set for every channel

||oAudio channel layouts

||oAudio downmix metadata

||oAudio sample formats Audio sample format enumeration and related convenience functions

||\Samples manipulation Functions that manipulate audio samples

|oError Codes

|oLogging Facility

||\Logging Constants

|\Other

| oPreprocessor String Macros String manipulation macros

| oLibrary Version Macros Useful to check and match library version in order to maintain backward compatibility

| oConstants

| |oEncoding specific

| |\Timestamp specific FFmpeg internal timebase and timestamp definitions

| oImage related AVPicture types, pixel formats and basic image planes manipulation

| oVersion and Build diagnostics Macros and function useful to check at compiletime and at runtime which version of libavutil is in use

| |\Deprecation Guards FF_API_* defines may be placed below to indicate public API that will be dropped at a future version bump

| \Media Type Media Type

olibpostproc Video postprocessing library

olibswresample Audio resampling, sample format conversion and mixing library

olibswscale Color conversion and scaling library

\VDPAU_Decoding