Examples

transcode_aac.c.

Definition at line 47 of file transcode_aac.c.

Examples

transcode_aac.c.

Definition at line 49 of file transcode_aac.c.

Open an input file and the required decoder.

Parameters

filename File to be opened

[out] input_format_context Format context of opened file

[out] input_codec_context Codec context of opened file

Returns

Error code (0 if successful)

Examples

transcode_aac.c.

Definition at line 58 of file transcode_aac.c.

Referenced by main().

Open an output file and the required encoder.

Also set some basic encoder parameters. Some of these parameters are based on the input file's parameters.

Parameters

filename File to be opened

input_codec_context Codec context of input file

[out] output_format_context Format context of output file

[out] output_codec_context Codec context of output file

Returns

Error code (0 if successful)

Examples

transcode_aac.c.

Definition at line 145 of file transcode_aac.c.

Referenced by main().

Initialize one data packet for reading or writing.

Parameters

[out] packet Packet to be initialized

Returns

Error code (0 if successful)

Examples

transcode_aac.c.

Definition at line 253 of file transcode_aac.c.

Referenced by decode_audio_frame(), and encode_audio_frame().

Initialize one audio frame for reading from the input file.

Parameters

[out] frame Frame to be initialized

Returns

Error code (0 if successful)

Examples

transcode_aac.c.

Definition at line 267 of file transcode_aac.c.

Referenced by read_decode_convert_and_store().

Initialize the audio resampler based on the input and output codec settings.

If the input and output sample formats differ, a conversion is required libswresample takes care of this, but requires initialization.

Parameters

input_codec_context Codec context of the input file

output_codec_context Codec context of the output file

[out] resample_context Resample context for the required conversion

Returns

Error code (0 if successful)

Examples

transcode_aac.c.

Definition at line 285 of file transcode_aac.c.

Referenced by main().

Initialize a FIFO buffer for the audio samples to be encoded.

Parameters

[out] fifo Sample buffer

output_codec_context Codec context of the output file

Returns

Error code (0 if successful)

Examples

transcode_aac.c.

Definition at line 329 of file transcode_aac.c.

Referenced by main().

Write the header of the output file container.

Parameters

output_format_context Format context of the output file

Returns

Error code (0 if successful)

Examples

transcode_aac.c.

Definition at line 345 of file transcode_aac.c.

Referenced by main().

Decode one audio frame from the input file.

Parameters

frame Audio frame to be decoded

input_format_context Format context of the input file

input_codec_context Codec context of the input file

[out] data_present Indicates whether data has been decoded

[out] finished Indicates whether the end of file has been reached and all data has been decoded. If this flag is false, there is more data to be decoded, i.e., this function has to be called again.

Returns

Error code (0 if successful)

Examples

transcode_aac.c.

Definition at line 369 of file transcode_aac.c.

Referenced by read_decode_convert_and_store().

Initialize a temporary storage for the specified number of audio samples.

The conversion requires temporary storage due to the different format. The number of audio samples to be allocated is specified in frame_size.

Parameters

[out] converted_input_samples Array of converted samples. The dimensions are reference, channel (for multi-channel audio), sample.

output_codec_context Codec context of the output file

frame_size Number of samples to be converted in each round

Returns

Error code (0 if successful)

Examples

transcode_aac.c.

Definition at line 443 of file transcode_aac.c.

Referenced by read_decode_convert_and_store().

Convert the input audio samples into the output sample format.

The conversion happens on a per-frame basis, the size of which is specified by frame_size.

Parameters

input_data Samples to be decoded. The dimensions are channel (for multi-channel audio), sample.

[out] converted_data Converted samples. The dimensions are channel (for multi-channel audio), sample.

frame_size Number of samples to be converted

resample_context Resample context for the conversion

Returns

Error code (0 if successful)

Examples

transcode_aac.c.

Definition at line 478 of file transcode_aac.c.

Referenced by read_decode_convert_and_store().

Add converted input audio samples to the FIFO buffer for later processing.

Parameters

fifo Buffer to add the samples to

converted_input_samples Samples to be added. The dimensions are channel (for multi-channel audio), sample.

frame_size Number of samples to be converted

Returns

Error code (0 if successful)

Examples

transcode_aac.c.

Definition at line 504 of file transcode_aac.c.

Referenced by read_decode_convert_and_store().

Read one audio frame from the input file, decode, convert and store it in the FIFO buffer.

Parameters

fifo Buffer used for temporary storage

input_format_context Format context of the input file

input_codec_context Codec context of the input file

output_codec_context Codec context of the output file

resampler_context Resample context for the conversion

[out] finished Indicates whether the end of file has been reached and all data has been decoded. If this flag is false, there is more data to be decoded, i.e., this function has to be called again.

Returns

Error code (0 if successful)

Examples

transcode_aac.c.

Definition at line 542 of file transcode_aac.c.

Referenced by main().

Initialize one input frame for writing to the output file.

The frame will be exactly frame_size samples large.

Parameters

[out] frame Frame to be initialized

output_codec_context Codec context of the output file

frame_size Size of the frame

Returns

Error code (0 if successful)

Examples

transcode_aac.c.

Definition at line 608 of file transcode_aac.c.

Referenced by load_encode_and_write().

Encode one frame worth of audio to the output file.

Parameters

frame Samples to be encoded

output_format_context Format context of the output file

output_codec_context Codec context of the output file

[out] data_present Indicates whether data has been encoded

Returns

Error code (0 if successful)

Examples

transcode_aac.c.

Definition at line 654 of file transcode_aac.c.

Referenced by load_encode_and_write(), and main().

Load one audio frame from the FIFO buffer, encode and write it to the output file.

Parameters

fifo Buffer used for temporary storage

output_format_context Format context of the output file

output_codec_context Codec context of the output file

Returns

Error code (0 if successful)

Examples

transcode_aac.c.

Definition at line 726 of file transcode_aac.c.

Referenced by main().

Write the trailer of the output file container.

Parameters

output_format_context Format context of the output file

Returns

Error code (0 if successful)

Examples

transcode_aac.c.

Definition at line 766 of file transcode_aac.c.

Referenced by main().

Examples

transcode_aac.c.

Definition at line 777 of file transcode_aac.c.

Examples

transcode_aac.c.

Definition at line 643 of file transcode_aac.c.

Referenced by aac_encode_flush(), aal_read_packet(), activate(), add_crc_to_array(), ape_read_header(), asf_read_marker(), asf_read_pts(), asf_read_seek(), asf_write_packet(), av_buffersrc_close(), av_parser_parse2(), build_frame_code(), compare_crc_in_array(), config_input(), consume_from_fifos(), create_frame(), curves_init(), dat_read_packet(), decode_frame(), decode_frame_header(), decode_vop_header(), dhav_read_seek(), dirac_combine_frame(), dirac_gptopts(), display_end_segment(), dnn_classify_activate(), dnn_classify_flush_frame(), dnn_detect_activate(), dnn_detect_flush_frame(), do_subtitle_out(), drain_input_pts(), draw_mandelbrot(), draw_spatial(), enc_stats_write(), encode_audio_frame(), eval_pts(), ff_af_queue_remove(), ff_amf_receive_packet(), ff_avfilter_link_set_in_status(), ff_decklink_packet_queue_peekpts(), ff_inlink_evaluate_timeline_at_frame(), ff_mediacodec_dec_send(), ff_outlink_set_status(), ff_print_pts(), ff_subtitles_queue_seek(), ff_write_chained(), filter(), filter_frame(), find_next_delta_ts(), flac_read_timestamp(), flush(), flush_frame(), flush_packet(), flv_read_packet(), frame_list_add_frame(), framesync_advance(), framesync_inject_frame(), framesync_inject_status(), framesync_pts_extrapolate(), get_concatdec_select(), get_frame_internal(), get_pkt_pts(), get_pts(), get_vcd_padding_size(), guess_correct_pts(), handle_input(), handle_klv(), handle_metadata(), interpolate(), ivr_read_packet(), libplacebo_activate(), link_set_out_status(), load_input_picture(), mediacodec_send(), mf_sample_get_pts(), microdvd_read_header(), mkv_add_cuepoint(), mkv_assemble_cues(), mov_flush_fragment(), mov_read_packet(), mov_read_sidx(), mov_read_trun(), mpeg_mux_write_packet(), mpegps_read_dts(), mpegps_read_packet(), mpegps_read_pes_header(), mpegts_write_packet_internal(), mpegts_write_pes(), mpsub_read_header(), nut_read_timestamp(), ogg_calc_pts(), ogg_get_length(), ogg_gptopts(), ogg_read_packet(), ogg_read_timestamp(), ogg_write_packet_internal(), output_frame(), output_single_frame(), parse_forced_key_frames(), parse_presentation_segment(), parse_psfile(), plot_freqs(), pp_bnk_seek(), prepare_packet(), print_report(), push_frame(), queue_picture(), read_frame_internal(), read_interval_packets(), read_packet(), read_part_of_packet(), read_seek(), read_trun_duration(), readrate_sleep(), request_frame(), rkmpp_write_data(), rm_read_index(), rm_read_seek(), rv34_parse(), scan_file(), scc_write_packet(), scd_seek(), send_eof(), send_silence(), set_clock(), set_clock_at(), sub2video_heartbeat(), sub2video_push_ref(), sub2video_update(), subtitle_thread(), sup_read_packet(), sup_write_packet(), swr_next_pts(), theora_packet(), try_push_frame(), update_initial_timestamps(), update_link_current_pts(), update_pts(), update_time(), update_video_pts(), v4l2_set_pts(), vc1t_read_packet(), video_thread(), vp8_gptopts(), vtenc_cm_to_avpacket(), write_pts(), xcbgrab_read_packet(), xfade_opencl_activate(), and yuv4_read_seek().