Name of the codec implementation.

The name is globally unique among encoders and among decoders (but an encoder and a decoder can share the same name). This is the primary way to find a codec from the user perspective.

Definition at line 3746 of file avcodec.h.

Referenced by avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(), avcodec_get_name(), avcodec_open2(), avcodec_string(), choose_pixel_fmt(), choose_sample_fmt(), compute_status(), context_to_name(), cuvid_test_capabilities(), dshow_cycle_formats(), ffserver_opt_preset(), find_codec_or_die(), hw_device_setup_for_decode(), init(), main(), mpeg12_class(), print_codec(), print_codecs(), print_codecs_for_id(), print_stream_params(), read_ffserver_streams(), show_codecs(), test_copy(), test_copy_print_codec(), transcode_init(), and video_decode().

Descriptive name for the codec, meant to be more human readable than name.

You should use the NULL_IF_CONFIG_SMALL() macro to define it.

Definition at line 3751 of file avcodec.h.

Referenced by print_codec(), and print_codecs().

Definition at line 3752 of file avcodec.h.

Referenced by avcodec_decode_subtitle2(), avcodec_open2(), decode_simple_internal(), ff_init_buffer_info(), ffserver_set_codec(), find_codec_or_die(), init_context_defaults(), LLVMFuzzerTestOneInput(), main(), print_codec(), and read_ffserver_streams().

Examples:

decode_audio.c, decode_video.c, and encode_video.c.

Definition at line 3753 of file avcodec.h.

Referenced by a64multi_encode_init(), adpcm_compress_trellis(), adpcm_decode_frame(), adpcm_decode_init(), adpcm_encode_frame(), adpcm_encode_init(), avcodec_open2(), binkaudio_receive_frame(), choose_decoder(), cuvid_decode_init(), decode_end(), decode_init(), do_video_out(), dpcm_decode_frame(), dpcm_decode_init(), eightsvx_decode_init(), encode_init(), ff_h263_decode_init(), ff_mjpeg_decode_init(), ff_mjpeg_init_hvsample(), ff_mpv_decode_init(), ff_mpv_encode_init(), ff_print_debug_info2(), ff_wma_init(), ffserver_set_codec(), find_encdec(), find_probe_decoder(), flush_encoders(), get_nb_samples(), h263_get_format(), init(), init_context_defaults(), main(), mpeg_decode_init(), next_codec_for_id(), nvenc_codec_specific_pic_params(), nvenc_setup_codec_config(), nvenc_setup_device(), nvenc_setup_encoder(), omx_component_init(), omx_encode_init(), open_input_file(), open_output_file(), pcm_decode_frame(), pcm_encode_frame(), pcm_encode_init(), process_output_surface(), stream_component_open(), transcode_init(), vaapi_mpeg4_start_frame(), vdpau_mpeg4_start_frame(), vp6_decode_init(), vp78_decode_init(), and wma_decode_init().

Codec capabilities.

see AV_CODEC_CAP_*

Examples:

muxing.c, and transcoding.c.

Definition at line 3758 of file avcodec.h.

Referenced by apply_param_change(), avcodec_decode_subtitle2(), avcodec_encode_audio2(), avcodec_encode_video2(), avcodec_open2(), avcodec_receive_packet(), avcodec_send_frame(), choose_sample_fmt(), decode_nal_units(), decode_simple_internal(), do_video_out(), er_supported(), ff_frame_thread_encoder_init(), ff_get_format(), ff_h263_decode_frame(), ff_h264_execute_decode_slices(), ff_h264_field_end(), ff_mpeg_framesize_alloc(), ff_mpv_frame_start(), ff_print_debug_info2(), ff_vp9_init_static(), find_encdec(), find_probe_decoder(), h264_frame_start(), h264_slice_header_init(), libopenjpeg_static_init(), LLVMFuzzerTestOneInput(), open_audio(), print_codec(), print_codecs(), reap_filters(), stream_component_open(), submit_packet(), try_decode_frame(), validate_thread_parameters(), and vc1_decode_frame().

array of supported framerates, or NULL if any, array is terminated by {0,0}

Definition at line 3759 of file avcodec.h.

Referenced by print_codec().

array of supported pixel formats, or NULL if unknown, array is terminated by -1

Examples:

transcoding.c.

Definition at line 3760 of file avcodec.h.

Referenced by avcodec_open2(), choose_pixel_fmt(), ff_vp9_init_static(), ffmmal_init_decoder(), get_pixel_format(), h263_get_format(), libx265_encode_init_csp(), open_output_file(), vc1_decode_init(), vdadec_init(), and X264_init_static().

array of supported audio samplerates, or NULL if unknown, array is terminated by 0

Examples:

encode_audio.c.

Definition at line 3761 of file avcodec.h.

Referenced by avcodec_open2(), and select_sample_rate().

array of supported sample formats, or NULL if unknown, array is terminated by -1

Examples:

encode_audio.c, transcode_aac.c, and transcoding.c.

Definition at line 3762 of file avcodec.h.

Referenced by avcodec_open2(), check_sample_fmt(), choose_sample_fmt(), main(), open_output_file(), and pcm_decode_init().

array of support channel layouts, or NULL if unknown. array is terminated by 0

Examples:

encode_audio.c.

Definition at line 3763 of file avcodec.h.

Referenced by avcodec_open2(), and select_channel_layout().

maximum value for lowres supported by the decoder

Definition at line 3764 of file avcodec.h.

Referenced by av_codec_get_max_lowres(), and avcodec_open2().

AVClass for the private context.

Definition at line 3765 of file avcodec.h.

Referenced by avcodec_close(), avcodec_copy_context(), avcodec_open2(), codec_child_class_next(), codec_child_next(), ff_frame_thread_encoder_init(), ff_frame_thread_free(), ffm2_read_header(), ffm_write_recommended_config(), filter_codec_opts(), init_context_defaults(), print_codec(), show_codec_opts(), show_stream(), test_copy(), and test_copy_print_codec().

array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN}

Definition at line 3766 of file avcodec.h.

Referenced by av_get_profile_name().

Definition at line 3775 of file avcodec.h.

Referenced by avcodec_open2(), ff_frame_thread_encoder_init(), ff_frame_thread_init(), ff_mjpeg_encode_picture_header(), ffm2_read_header(), ffm_write_recommended_config(), init_context_defaults(), test_copy(), and test_copy_print_codec().

Definition at line 3776 of file avcodec.h.

Referenced by av_codec_next(), avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(), avcodec_register(), and find_encdec().

If defined, called on thread contexts when they are created.

If the codec allocates writable tables in init(), re-allocate them here. priv_data will be set to a copy of the original.

Definition at line 3786 of file avcodec.h.

Referenced by ff_frame_thread_init().

Copy necessary context variables from a previous thread context to the current one.

If not defined, the next thread will start automatically; otherwise, the codec must call ff_thread_finish_setup().

dst and src will (rarely) point to the same context, in which case memcpy should be skipped.

Definition at line 3794 of file avcodec.h.

Referenced by ff_thread_can_start_frame(), frame_worker_thread(), hap_decode(), thread_get_buffer_internal(), update_context_from_thread(), and vp78_decode_frame().

Private codec-specific defaults.

Definition at line 3800 of file avcodec.h.

Referenced by init_context_defaults(), and init_output_stream().

Initialize codec static data, called from avcodec_register().

Definition at line 3805 of file avcodec.h.

Referenced by avcodec_register().

Definition at line 3807 of file avcodec.h.

Referenced by avcodec_open2(), ff_frame_thread_init(), ff_lock_avcodec(), ff_unlock_avcodec(), and vdadec_init().

Definition at line 3808 of file avcodec.h.

Referenced by av_codec_is_encoder(), and avcodec_encode_subtitle().

Encode data to an AVPacket.

Parameters

avctx codec context

avpkt output AVPacket (may contain a user-provided buffer)

[in] frame AVFrame containing the raw data to be encoded

[out] got_packet_ptr encoder sets to 0 or 1 to indicate that a non-empty packet was returned in avpkt.

Returns

0 on success, negative error code on failure

Definition at line 3820 of file avcodec.h.

Referenced by av_codec_is_encoder(), avcodec_encode_audio2(), and avcodec_encode_video2().

Definition at line 3822 of file avcodec.h.

Referenced by av_codec_is_decoder(), avcodec_decode_subtitle2(), decode_simple_internal(), frame_worker_thread(), get_category(), and vdadec_decode().

Definition at line 3823 of file avcodec.h.

Referenced by avcodec_close(), ff_frame_thread_free(), and vdadec_close().

Encode API with decoupled packet/frame dataflow.

The API is the same as the avcodec_ prefixed APIs (avcodec_send_frame() etc.), except that:

• never called if the codec is closed or the wrong type,
• if AV_CODEC_CAP_DELAY is not set, drain frames are never sent,
• only one drain frame is ever passed down,

Definition at line 3832 of file avcodec.h.

Referenced by av_codec_is_encoder(), and avcodec_send_frame().

Definition at line 3833 of file avcodec.h.

Referenced by avcodec_receive_packet().

Decode API with decoupled packet/frame dataflow.

This function is called to get one output frame. It should call ff_decode_get_packet() to obtain input data.

Definition at line 3840 of file avcodec.h.

Referenced by av_codec_is_decoder(), decode_receive_frame_internal(), and ff_decode_get_packet().

Flush buffers.

Will be called when seeking

Definition at line 3845 of file avcodec.h.

Referenced by avcodec_flush_buffers(), ff_thread_flush(), and vdadec_flush().

Internal codec capabilities.

See FF_CODEC_CAP_* in internal.h

Definition at line 3850 of file avcodec.h.

Referenced by avpriv_codec_get_cap_skip_frame_fill_param(), decode_simple_internal(), ff_lock_avcodec(), ff_slice_thread_init(), ff_unlock_avcodec(), and get_buffer_internal().

Decoding only, a comma-separated list of bitstream filters to apply to packets before decoding.

Definition at line 3856 of file avcodec.h.

Referenced by bsfs_init(), and compat_decode().