21 #ifndef AVCODEC_CODEC_H 22 #define AVCODEC_CODEC_H 44 #define AV_CODEC_CAP_DRAW_HORIZ_BAND (1 << 0) 52 #define AV_CODEC_CAP_DR1 (1 << 1) 53 #define AV_CODEC_CAP_TRUNCATED (1 << 3) 77 #define AV_CODEC_CAP_DELAY (1 << 5) 82 #define AV_CODEC_CAP_SMALL_LAST_FRAME (1 << 6) 95 #define AV_CODEC_CAP_SUBFRAMES (1 << 8) 100 #define AV_CODEC_CAP_EXPERIMENTAL (1 << 9) 104 #define AV_CODEC_CAP_CHANNEL_CONF (1 << 10) 108 #define AV_CODEC_CAP_FRAME_THREADS (1 << 12) 112 #define AV_CODEC_CAP_SLICE_THREADS (1 << 13) 116 #define AV_CODEC_CAP_PARAM_CHANGE (1 << 14) 122 #define AV_CODEC_CAP_OTHER_THREADS (1 << 15) 123 #if FF_API_AUTO_THREADS 124 #define AV_CODEC_CAP_AUTO_THREADS AV_CODEC_CAP_OTHER_THREADS 129 #define AV_CODEC_CAP_VARIABLE_FRAME_SIZE (1 << 16) 139 #define AV_CODEC_CAP_AVOID_PROBING (1 << 17) 141 #if FF_API_UNUSED_CODEC_CAPS 145 #define AV_CODEC_CAP_INTRA_ONLY 0x40000000 149 #define AV_CODEC_CAP_LOSSLESS 0x80000000 157 #define AV_CODEC_CAP_HARDWARE (1 << 18) 164 #define AV_CODEC_CAP_HYBRID (1 << 19) 171 #define AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE (1 << 20) 178 #define AV_CODEC_CAP_ENCODER_FLUSH (1 << 21) 274 void (*init_static_data)(
struct AVCodec *codec);
304 int *got_frame_ptr,
struct AVPacket *avpkt);
static enum AVPixelFormat pix_fmt
This structure describes decoded (raw) audio or video data.
int av_codec_is_encoder(const AVCodec *codec)
The codec supports this format by some internal method.
int av_codec_is_decoder(const AVCodec *codec)
Convenience header that includes libavutil's core.
const AVCodec * av_codec_iterate(void **opaque)
Iterate over all registered codecs.
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
AVCodec * avcodec_find_decoder_by_name(const char *name)
Find a registered decoder with the specified name.
The codec supports this format by some ad-hoc method.
struct AVCodecDefault AVCodecDefault
const uint32_t * codec_tags
List of supported codec_tags, terminated by FF_CODEC_TAGS_END.
The codec supports this format via the hw_frames_ctx interface.
The codec supports this format via the hw_device_ctx interface.
Libavcodec version macros.
const uint64_t * channel_layouts
array of support channel layouts, or NULL if unknown. array is terminated by 0
const AVCodecDefault * defaults
Private codec-specific defaults.
AVCodecID
Identify the syntax and semantics of the bitstream.
const struct AVCodecHWConfigInternal *const * hw_configs
Array of pointers to hardware configurations supported by the codec, or NULL if no hardware supported...
int methods
Bit set of AV_CODEC_HW_CONFIG_METHOD_* flags, describing the possible setup methods which can be used...
int capabilities
Codec capabilities.
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
const char * name
Name of the codec implementation.
enum AVPixelFormat * pix_fmts
array of supported pixel formats, or NULL if unknown, array is terminated by -1
int(* update_thread_context)(struct AVCodecContext *dst, const struct AVCodecContext *src)
Copy necessary context variables from a previous thread context to the current one.
AVCodec * avcodec_find_encoder_by_name(const char *name)
Find a registered encoder with the specified name.
const AVProfile * profiles
array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN} ...
const char * bsfs
Decoding only, a comma-separated list of bitstream filters to apply to packets before decoding...
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 AVRational * supported_framerates
array of supported framerates, or NULL if any, array is terminated by {0,0}
AVSampleFormat
Audio sample formats.
const AVCodecHWConfig * avcodec_get_hw_config(const AVCodec *codec, int index)
Retrieve supported hardware configurations for a codec.
main external API structure.
Describe the class of an AVClass context structure.
int(* init)(struct AVCodecContext *)
Rational number (pair of numerator and denominator).
const char * name
short name for the profile
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
const AVClass * priv_class
AVClass for the private context.
uint8_t max_lowres
maximum value for lowres supported by the decoder
Utilties for rational number calculation.
int caps_internal
Internal codec capabilities.
const int * supported_samplerates
array of supported audio samplerates, or NULL if unknown, array is terminated by 0 ...
enum AVSampleFormat * sample_fmts
array of supported sample formats, or NULL if unknown, array is terminated by -1
AVPixelFormat
Pixel format.
This structure stores compressed data.