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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)
AVPixelFormat
Pixel format.
const char * long_name
Descriptive name for the codec, meant to be more human readable than name.
int methods
Bit set of AV_CODEC_HW_CONFIG_METHOD_* flags, describing the possible setup methods which can be used...
const AVClass * priv_class
AVClass for the private context.
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 char * name
short name for the profile
Utilties for rational number calculation.
enum AVPixelFormat * pix_fmts
array of supported pixel formats, or NULL if unknown, array is terminated by -1
const char * wrapper_name
Group name of the codec implementation.
This structure describes decoded (raw) audio or video data.
int capabilities
Codec capabilities.
int(* decode)(struct AVCodecContext *, void *outdata, int *outdata_size, struct AVPacket *avpkt)
Libavcodec version macros.
void(* flush)(struct AVCodecContext *)
Flush buffers.
uint8_t max_lowres
maximum value for lowres supported by the decoder
AVCodec * avcodec_find_decoder_by_name(const char *name)
Find a registered decoder with the specified name.
enum AVSampleFormat * sample_fmts
array of supported sample formats, or NULL if unknown, array is terminated by -1
const char * bsfs
Decoding only, a comma-separated list of bitstream filters to apply to packets before decoding.
int(* encode_sub)(struct AVCodecContext *, uint8_t *buf, int buf_size, const struct AVSubtitle *sub)
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
const int * supported_samplerates
array of supported audio samplerates, or NULL if unknown, array is terminated by 0
const AVRational * supported_framerates
array of supported framerates, or NULL if any, array is terminated by {0,0}
@ AV_CODEC_HW_CONFIG_METHOD_AD_HOC
The codec supports this format by some ad-hoc method.
enum AVPixelFormat pix_fmt
For decoders, a hardware pixel format which that decoder may be able to decode to if suitable hardwar...
Describe the class of an AVClass context structure.
Rational number (pair of numerator and denominator).
const AVProfile * profiles
array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN}
AVCodecID
Identify the syntax and semantics of the bitstream.
int av_codec_is_decoder(const AVCodec *codec)
int(* send_frame)(struct AVCodecContext *avctx, const struct AVFrame *frame)
Encode API with decoupled packet/frame dataflow.
int(* close)(struct AVCodecContext *)
const AVCodecDefault * defaults
Private codec-specific defaults.
int(* encode2)(struct AVCodecContext *avctx, struct AVPacket *avpkt, const struct AVFrame *frame, int *got_packet_ptr)
Encode data to an AVPacket.
int(* receive_packet)(struct AVCodecContext *avctx, struct AVPacket *avpkt)
void(* init_static_data)(struct AVCodec *codec)
Initialize codec static data, called from avcodec_register().
@ AV_CODEC_HW_CONFIG_METHOD_INTERNAL
The codec supports this format by some internal method.
int(* receive_frame)(struct AVCodecContext *avctx, struct AVFrame *frame)
Decode API with decoupled packet/frame dataflow.
@ AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX
The codec supports this format via the hw_frames_ctx interface.
struct AVCodecDefault AVCodecDefault
AVCodec * avcodec_find_encoder_by_name(const char *name)
Find a registered encoder with the specified name.
int av_codec_is_encoder(const AVCodec *codec)
AVSampleFormat
Audio sample formats.
const char * name
Name of the codec implementation.
const AVCodec * av_codec_iterate(void **opaque)
Iterate over all registered codecs.
int caps_internal
Internal codec capabilities.
const struct AVCodecHWConfigInternal ** hw_configs
Array of pointers to hardware configurations supported by the codec, or NULL if no hardware supported...
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
const uint32_t * codec_tags
List of supported codec_tags, terminated by FF_CODEC_TAGS_END.
main external API structure.
@ AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX
The codec supports this format via the hw_device_ctx interface.
const AVCodecHWConfig * avcodec_get_hw_config(const AVCodec *codec, int index)
Retrieve supported hardware configurations for a codec.
Convenience header that includes libavutil's core.
This structure stores compressed data.
int(* init)(struct AVCodecContext *)
enum AVHWDeviceType device_type
The device type associated with the configuration.
const uint64_t * channel_layouts
array of support channel layouts, or NULL if unknown. array is terminated by 0