21 #ifndef AVCODEC_CODEC_H
22 #define AVCODEC_CODEC_H
44 #define AV_CODEC_CAP_DRAW_HORIZ_BAND (1 << 0)
50 #define AV_CODEC_CAP_DR1 (1 << 1)
51 #define AV_CODEC_CAP_TRUNCATED (1 << 3)
75 #define AV_CODEC_CAP_DELAY (1 << 5)
80 #define AV_CODEC_CAP_SMALL_LAST_FRAME (1 << 6)
93 #define AV_CODEC_CAP_SUBFRAMES (1 << 8)
98 #define AV_CODEC_CAP_EXPERIMENTAL (1 << 9)
102 #define AV_CODEC_CAP_CHANNEL_CONF (1 << 10)
106 #define AV_CODEC_CAP_FRAME_THREADS (1 << 12)
110 #define AV_CODEC_CAP_SLICE_THREADS (1 << 13)
114 #define AV_CODEC_CAP_PARAM_CHANGE (1 << 14)
118 #define AV_CODEC_CAP_AUTO_THREADS (1 << 15)
122 #define AV_CODEC_CAP_VARIABLE_FRAME_SIZE (1 << 16)
132 #define AV_CODEC_CAP_AVOID_PROBING (1 << 17)
134 #if FF_API_UNUSED_CODEC_CAPS
138 #define AV_CODEC_CAP_INTRA_ONLY 0x40000000
142 #define AV_CODEC_CAP_LOSSLESS 0x80000000
150 #define AV_CODEC_CAP_HARDWARE (1 << 18)
157 #define AV_CODEC_CAP_HYBRID (1 << 19)
164 #define AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE (1 << 20)
171 #define AV_CODEC_CAP_ENCODER_FLUSH (1 << 21)
Convenience header that includes libavutil's core.
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
struct AVCodecDefault AVCodecDefault
int av_codec_is_encoder(const AVCodec *codec)
const AVCodecHWConfig * avcodec_get_hw_config(const AVCodec *codec, int index)
Retrieve supported hardware configurations for a codec.
int av_codec_is_decoder(const AVCodec *codec)
AVCodec * avcodec_find_decoder_by_name(const char *name)
Find a registered decoder with the specified name.
const AVCodec * av_codec_iterate(void **opaque)
Iterate over all registered codecs.
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
AVCodec * avcodec_find_encoder_by_name(const char *name)
Find a registered encoder with the specified name.
AVCodecID
Identify the syntax and semantics of the bitstream.
@ AV_CODEC_HW_CONFIG_METHOD_AD_HOC
The codec supports this format by some ad-hoc method.
@ AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX
The codec supports this format via the hw_frames_ctx interface.
@ AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX
The codec supports this format via the hw_device_ctx interface.
@ AV_CODEC_HW_CONFIG_METHOD_INTERNAL
The codec supports this format by some internal method.
AVSampleFormat
Audio sample formats.
Libavcodec version macros.
AVPixelFormat
Pixel format.
Utilties for rational number calculation.
Describe the class of an AVClass context structure.
main external API structure.
enum AVHWDeviceType device_type
The device type associated with the configuration.
int methods
Bit set of AV_CODEC_HW_CONFIG_METHOD_* flags, describing the possible setup methods which can be used...
enum AVPixelFormat pix_fmt
For decoders, a hardware pixel format which that decoder may be able to decode to if suitable hardwar...
const AVCodecDefault * defaults
Private codec-specific defaults.
const uint64_t * channel_layouts
array of support channel layouts, or NULL if unknown. array is terminated by 0
int(* receive_packet)(struct AVCodecContext *avctx, struct AVPacket *avpkt)
int caps_internal
Internal codec capabilities.
int(* receive_frame)(struct AVCodecContext *avctx, struct AVFrame *frame)
Decode API with decoupled packet/frame dataflow.
const char * bsfs
Decoding only, a comma-separated list of bitstream filters to apply to packets before decoding.
void(* init_static_data)(struct AVCodec *codec)
Initialize codec static data, called from avcodec_register().
const AVClass * priv_class
AVClass for the private context.
int(* init)(struct AVCodecContext *)
const AVRational * supported_framerates
array of supported framerates, or NULL if any, array is terminated by {0,0}
int(* send_frame)(struct AVCodecContext *avctx, const struct AVFrame *frame)
Encode API with decoupled packet/frame dataflow.
int(* update_thread_context)(struct AVCodecContext *dst, const struct AVCodecContext *src)
Copy necessary context variables from a previous thread context to the current one.
const struct AVCodecHWConfigInternal ** hw_configs
Array of pointers to hardware configurations supported by the codec, or NULL if no hardware supported...
void(* flush)(struct AVCodecContext *)
Flush buffers.
enum AVSampleFormat * sample_fmts
array of supported sample formats, or NULL if unknown, array is terminated by -1
const uint32_t * codec_tags
List of supported codec_tags, terminated by FF_CODEC_TAGS_END.
enum AVPixelFormat * pix_fmts
array of supported pixel formats, or NULL if unknown, array is terminated by -1
const AVProfile * profiles
array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN}
const char * long_name
Descriptive name for the codec, meant to be more human readable than name.
const char * wrapper_name
Group name of the codec implementation.
const char * name
Name of the codec implementation.
int(* encode2)(struct AVCodecContext *avctx, struct AVPacket *avpkt, const struct AVFrame *frame, int *got_packet_ptr)
Encode data to an AVPacket.
int(* close)(struct AVCodecContext *)
int(* encode_sub)(struct AVCodecContext *, uint8_t *buf, int buf_size, const struct AVSubtitle *sub)
const int * supported_samplerates
array of supported audio samplerates, or NULL if unknown, array is terminated by 0
int capabilities
Codec capabilities.
int(* decode)(struct AVCodecContext *, void *outdata, int *outdata_size, struct AVPacket *avpkt)
uint8_t max_lowres
maximum value for lowres supported by the decoder
This structure describes decoded (raw) audio or video data.
This structure stores compressed data.
const char * name
short name for the profile
Rational number (pair of numerator and denominator).