Codec parameters

Data Structures
struct	AVCodecParameters
	This struct describes the properties of an encoded stream. More...
AVCodecParameters *	avcodec_parameters_alloc (void)
	Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0). More...
void	avcodec_parameters_free (AVCodecParameters **par)
	Free an AVCodecParameters instance and everything associated with it and write NULL to the supplied pointer. More...
int	avcodec_parameters_copy (AVCodecParameters *dst, const AVCodecParameters *src)
	Copy the contents of src to dst. More...
int	av_get_audio_frame_duration2 (AVCodecParameters *par, int frame_bytes)
	This function is the same as av_get_audio_frame_duration(), except it works with AVCodecParameters instead of an AVCodecContext. More...

Detailed Description

Function Documentation

avcodec_parameters_alloc()

AVCodecParameters * avcodec_parameters_alloc ( void  )

related

Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0).

The returned struct must be freed with avcodec_parameters_free().

Definition at line 57 of file codec_par.c.

Referenced by audio_element_obu(), av_bsf_alloc(), avformat_new_stream(), codec_close(), encode_frame(), ff_frame_thread_encoder_init(), ff_mov_init_hinting(), flv_read_packet(), frame_data_ensure(), ist_add(), mov_create_chapter_track(), mov_create_timecode_track(), ost_add(), and parameters_from_context().

avcodec_parameters_free()

void avcodec_parameters_free ( AVCodecParameters **  par )

related

Free an AVCodecParameters instance and everything associated with it and write NULL to the supplied pointer.

Definition at line 67 of file codec_par.c.

Referenced by av_bsf_free(), codec_close(), encode_frame(), ff_frame_thread_encoder_init(), ff_free_stream(), ff_iamf_free_audio_element(), ff_mov_close_hinting(), ff_mov_init_hinting(), flv_read_packet(), frame_data_free(), ist_free(), mov_free(), ost_free(), and parameters_from_context().

avcodec_parameters_copy()

int avcodec_parameters_copy ( AVCodecParameters *  dst, const AVCodecParameters *  src  )

related

Copy the contents of src to dst.

Any allocated fields in dst are freed and replaced with newly allocated duplicates of the corresponding fields in src.

Returns

>= 0 on success, a negative AVERROR code on failure.

Examples

remux.c, and transcode.c.

Definition at line 107 of file codec_par.c.

Referenced by asfrtp_parse_sdp_line(), av1_read_header(), av_bsf_init(), bsf_init(), bsf_list_init(), copy_stream_props(), create_rtp_muxer(), dash_init(), detect_stream_specific(), evc_read_header(), extract_extradata_init(), ff_rtp_chain_mux_open(), ff_stream_add_bitstream_filter(), frame_data_ensure(), hds_write_header(), hls_mux_init(), iamf_read_header(), ism_write_header(), ist_add(), main(), mov_init_ttml_writer(), mpegts_init(), open_demux_for_component(), open_output_file(), open_slave(), parameters_from_context(), read_gab2_sub(), rtp_mpegts_write_header(), sap_fetch_packet(), sap_read_header(), set_stream_info_from_input_stream(), stream_params_copy(), and write_muxed_file().

av_get_audio_frame_duration2()

int av_get_audio_frame_duration2 ( AVCodecParameters *  par, int  frame_bytes  )

related

This function is the same as av_get_audio_frame_duration(), except it works with AVCodecParameters instead of an AVCodecContext.

Definition at line 816 of file utils.c.

Referenced by adp_read_header(), binka_read_packet(), build_frame_code(), compute_frame_duration(), compute_muxer_pkt_fields(), enable_pcr_generation_for_stream(), ff_parse_specific_params(), ff_put_wav_header(), ff_voc_get_packet(), get_aiff_header(), guess_pkt_duration(), mkv_write_track(), msf_read_header(), mux_fixup_ts(), rm_write_header(), rsd_read_header(), rtp_send_ilbc(), rv10_write_header(), svs_read_header(), swf_write_audio(), and vpk_read_seek().