Paris Hackday Code

FFmpeg

extra

Go to the source code of this file.

Functions
	Frequency (cycles/sample) n

	subplot (3, 1, 1)

	plot (n, x,'*k')

	plot (ni, A cos(2 pi ni f *T+phi),'-k')

	title ('Sinusoid at 1/4 the Spampling Rate')

	xlabel ('Time(samples)')

	ylabel ('Amplitude')

	text (-8, 1,'a)')

Normalized frequency axis	sublplot (3, 1, 2)

	stem (fn, magX,'ok')

	xlabel ('Normalized Frequency(cycles per sample))')

	ylabel ('Magnitude(Linear)')

	text (-.11, 40,'b)')

Spectral magitude in dB	subplot (3, 1, 3)

	plot (fn, spec,'--ok')

	axis ([0 1-350 50])

	xlabel ('Normalized Frequency(ccles per sample))')

	ylabel ('Magnitude(dB)')

	text ('Magnitude(dB)')

	text (-.11, 50, 'c)')

	disp (cmd)

	eval (cmd)

Variables
Example	__pad1__

Must be a power of two	T =1

Set sampling rate to	A =1

Sinusoidal Amplitude	phi =0

Sinusoidal phase	f =0.25

Discrete Time axis	x =Acos(2pinf*T+phi)

Sampled sinusoid	X =fft(x)

Spectrum Plot time	data

	ni = [0:.1:N-1]

Interpolated time axis hold	on

grid	off

Plot spectral	magnitude

	magX = abs(X)

	fn =[0:1/N:1-1/N]

Same thing on a dB	scale

	cmd =['print -deps ', '../eps/example1.eps']

Function Documentation

axis ( )

disp ( cmd )

eval ( cmd )

Referenced by av_evaluate_lls(), config_props(), ff_lpc_calc_coefs(), init(), query_formats(), reconstruct_and_encode_image(), request_frame(), and uninit().

Frequency ( cycles/ sample )

plot	(	n	,
		x	,
		'*k'
	)

plot	(	ni	,
		A *	cos2 pi ni f T+phi,
		'-k'
	)

plot	(	fn	,
		spec	,
		'--ok'
	)

stem	(	fn	,
		magX	,
		'ok'
	)

Normalized frequency axis sublplot	(	3	,
		1	,
		2
	)

subplot	(	3	,
		1	,
		1
	)

Spectral magitude in dB subplot	(	3	,
		1	,
		3
	)

text	(	-	8,
		1	,
		'	a
	)

Referenced by avcodec_register_all(), decode_text_chunk(), draw_glyphs(), draw_text(), expand_function(), expand_text(), ff_ass_split_override_codes(), parse_boolean(), text_event_to_ass(), and wc3_read_packet().

text	(	-.	11,
		40	,
		'	b
	)

text ( 'Magnitude(dB)' )

text	(	-.	11,
		50	,
		'	c
	)

title ( 'Sinusoid at 1/4 the Spampling Rate' )

Referenced by mov_read_chapters(), mov_write_uuidusmt_tag(), mpegts_write_header(), read_chapter(), read_header(), and sap_write_header().

xlabel ( 'Time(samples)' )

xlabel ( 'Normalized Frequencycycles per sample )

xlabel ( 'Normalized Frequencyccles per sample )

ylabel ( 'Amplitude' )

ylabel ( 'Magnitude(Linear)' )

ylabel ( 'Magnitude(dB)' )

Variable Documentation

Example __pad1__

Definition at line 4 of file FFT of a Simple Sinusoid.m.

Set sampling rate to A =1

Definition at line 6 of file FFT of a Simple Sinusoid.m.

cmd =['print -deps ', '../eps/example1.eps']

Spectrum Plot time data

Definition at line 14 of file FFT of a Simple Sinusoid.m.

Referenced by aac_decode_frame_int(), ac3_decode_frame(), adpcm_decode_frame(), adx_decode_frame(), adx_encode(), alac_decode_frame(), alloc_buffer(), amr_decode_fix_avctx(), amrnb_decode_frame(), amrwb_decode_frame(), ape_decode_frame(), apply_param_change(), ass_decode_close(), ass_get_duration(), atrac1_decode_frame(), atrac3_decode_frame(), aura_decode_frame(), av_adler32_update(), av_base64_encode(), av_blowfish_init(), av_buffer_create(), av_buffersrc_add_frame_internal(), av_des_mac(), av_fft_end(), av_frame_get_plane_buffer(), av_hmac_calc(), av_image_get_buffer_size(), av_packet_from_data(), av_packet_split_side_data(), av_register_all(), avcodec_decode_audio4(), avcodec_decode_video2(), avs_decode_frame(), avui_decode_frame(), bfi_decode_frame(), bitplane_decoding(), bmp_decode_frame(), bmv_aud_decode_frame(), brpix_decode_frame(), cdg_decode_frame(), cdxl_decode_frame(), cinaudio_decode_frame(), cinepak_decode_strip(), cllc_decode_frame(), cmv_decode_frame(), cng_decode_frame(), column_fidct_c(), concat_close(), concat_open(), concat_read(), concat_seek(), control(), conv(), convert_mask_to_strength_mask(), cook_decode_frame(), create_map(), cyuv_decode_frame(), data_open(), dca_decode_frame(), decode(), decode_13(), decode_frame(), decode_tag(), decode_text_chunk(), decode_zbuf(), dfa_decode_frame(), dirac_decode_frame(), display_end_segment(), dnxhd_decode_frame(), do_apply_filter(), dpcm_decode_frame(), dvbsub_decode(), dvdsub_decode(), dvdsub_parse_extradata(), ebml_parse_elem(), encode_frame(), escape124_decode_frame(), escape130_decode_frame(), estimate_best_b_count(), evrc_decode_frame(), ff_add_param_change(), ff_amf_get_field_value(), ff_amf_tag_size(), ff_asfcrypt_dec(), ff_audio_mix(), ff_calculate_bounding_box(), ff_check_pixfmt_descriptors(), ff_default_get_video_buffer(), ff_fdct248_islow(), ff_fdct_ifast(), ff_fdct_ifast248(), ff_generate_avci_extradata(), ff_get_audio_buffer(), ff_h263_decode_frame(), ff_ivi_decode_frame(), ff_j_rev_dct(), ff_j_rev_dct4(), ff_jpeg_fdct_islow(), ff_rv34_decode_frame(), ff_schro_queue_pop(), ff_simple_idct_put_vis(), ff_simple_idct_vis(), ff_srtp_encrypt(), ff_vdpau_get_surface_id(), filter_frame(), flac_decode_frame(), flush(), flv_write_packet(), g722_decode_frame(), g723_1_decode_frame(), g726_reset(), gsm_decode_frame(), h261_decode_frame(), hb_fir_filter(), idcin_decode_frame(), if(), ilbc_decode_frame(), imc_decode_frame(), inverse_channel_transform(), ipvideo_decode_frame(), ir2_decode_frame(), ivi_scale_mv(), jacosub_decode_frame(), lag_decode_frame(), libcelt_dec_decode(), libgsm_decode_frame(), libopenjpeg_decode_frame(), libopus_decode(), libschroedinger_decode_frame(), libschroedinger_free_frame(), libshine_encode_frame(), libspeex_decode_frame(), mace_decode_frame(), main(), matroska_decode_buffer(), matroska_ebmlnum_sint(), matroska_parse_frame(), matroska_parse_laces(), microdvd_decode_frame(), mjpeg_decode_scan(), mjpeg_decode_scan_progressive_ac(), mkv_write_block(), mov_read_custom_metadata(), mov_text_decode_frame(), mov_write_subtitle_end_packet(), mpc7_decode_frame(), mpc8_decode_frame(), mpeg_decode_frame(), mpegts_write_packet_internal(), mpegts_write_pat(), mpegts_write_pmt(), mpegts_write_sdt(), mpl2_decode_frame(), mss2_decode_frame(), mul_thrmat_c(), multiswap_dec(), multiswap_enc(), ogg_buffer_data(), oggvorbis_decode_frame(), paf_aud_decode(), parse_packet(), parse_picture(), pcm_bluray_decode_frame(), pcm_decode_frame(), pcx_decode_frame(), pnm_decode_frame(), predictor_calc_error(), ptx_decode_frame(), qcelp_decode_frame(), qcelp_free_context(), qdm2_decode_frame(), qtrle_encode_line(), ra144_decode_frame(), ra144_encode_subblock(), ra288_decode_frame(), raw_decode(), realtext_decode_frame(), request_frame(), rl2_decode_frame(), row_fdct(), row_fdct_c(), rv10_decode_frame(), s302m_decode_frame(), sami_decode_frame(), sample_queue_push(), shorten_decode_frame(), sipr_decode_frame(), smka_decode_frame(), srt_decode_frame(), subviewer_decode_frame(), sunrast_decode_frame(), svq1_decode_frame(), tak_decode_frame(), text_decode_frame(), tgq_decode_frame(), tgv_decode_frame(), tmv_decode_frame(), tqi_decode_frame(), truespeech_decode_frame(), tta_decode_frame(), twin_decode_frame(), txd_decode_frame(), v308_decode_frame(), v408_decode_frame(), v410_decode_frame(), vble_decode_frame(), vc1_decode_frame(), vcr1_decode_frame(), vdadec_decode(), vertClassify_altivec(), video_audio_display(), vmdaudio_decode_frame(), vmdvideo_decode_frame(), vorbis_decode_frame(), vp3_decode_frame(), vp8_decode(), vqa_decode_frame(), wavpack_decode_block(), wavpack_decode_frame(), webvtt_decode_frame(), wma_decode_superframe(), ws_snd_decode_frame(), xan_decode_frame(), xbm_decode_frame(), xface_decode_frame(), xmv_fetch_video_packet(), xmv_process_packet_header(), xmv_read_extradata(), xwd_decode_frame(), y216_decode_frame(), y41p_decode_frame(), yuv4_decode_frame(), zero12v_decode_frame(), and zerocodec_decode_frame().

Sinusoidal phase f =0.25

Definition at line 8 of file FFT of a Simple Sinusoid.m.

Referenced by ac3_tables_init(), alloc_frame_buffer(), amr_decode_fix_avctx(), audio_decode_example(), audio_encode_example(), audiogen(), av_dbl2ext(), av_fifo_alloc(), avcodec_free_frame(), avfilter_get_by_name(), avfilter_register(), bl_intrp(), blur(), build_frame_code(), calc_bit_demand(), calc_reduction_3gpp(), cbrt_tableinit(), check_field_queue(), cmdutils_read_file(), compare_fields(), compute_lpc_coefs(), conv(), decode_audio(), decode_audio_block(), decode_end(), decode_frame(), decode_init(), decode_init_static(), decode_isf_indices_36b(), decode_isf_indices_46b(), decode_slice(), decode_video(), decode_wmv9(), decorrelation(), deInterlaceMedian(), dering(), draw_line(), dshow_read_close(), encode_frame(), encode_residual_fixed(), encode_slice(), evrc_decode_frame(), extrapolate_isf(), ff_avfilter_graph_config_pointers(), ff_dct_calc_I_c(), ff_dct_calc_II_c(), ff_draw_supported_pixel_formats(), ff_dst_calc_I_c(), ff_h264_fill_mbaff_ref_list(), ff_pullup_flush_fields(), ff_pullup_free_context(), ff_pullup_submit_field(), ff_sipr_decode_frame_16k(), ff_vc1_decode_blocks(), ff_yuv2rgb_get_func_ptr_bfin(), ffserver_opt_preset(), filter_child_class_next(), find_smallest_bounding_rectangle(), flac_fifo_read(), flac_fifo_read_wrap(), float_interleave(), floor_fit(), foo(), frame_erasure(), free_input_threads(), g726_decode(), get(), get_float(), get_preset_file(), get_wb_bitrate_mode(), graph_insert_fifos(), guess_mv(), h263_handle_packet(), i2f(), iir_filter(), imdct_ref(), img_read_packet(), indexof(), init_input_threads(), initPv(), input_thread(), int_cos(), main(), make_bands(), make_field_queue(), map_val_20_to_34(), map_val_34_to_20(), mpegaudio_tableinit(), noise_enhancer(), open_input_file(), opt_preset(), parse_dynamic_acl(), parse_fade(), parse_ffconfig(), parse_frames(), pgm_save(), pgmyuv_save(), pkt_dump_internal(), pnm_decode_frame(), pow_m1_4(), precalc_coefs(), predict(), print_aff_and_breaks(), ps_tableinit(), psy_3gpp_init(), psy_hp_filter(), put_image(), qdm2_calculate_fft(), qdm2_fft_generate_tone(), quantize_and_encode_band_cost_template(), quantize_bands(), quantize_triangular_ns(), query_formats(), queue_length(), read_mfra(), release_delayed_buffers(), rv20_decode_picture_header(), rv34_mc(), safe_filename(), sbr_gain_calc(), sbr_hf_inverse_filter(), sbr_sum64x5_c(), search_for_quantizers_anmr(), search_for_quantizers_faac(), set(), sha256_transform(), show_help_filter(), swri_dither_init(), synthfilt_build_sb_samples(), transcode_init(), vc1_mc_4mv_luma(), vc1_pred_b_mv_intfi(), video_decode_example(), video_encode_example(), vorbis_floor0_decode(), vp8_filter_mb_row(), write_float_3d_array(), write_float_4d_array(), and wv_get_value_float().

fn =[0:1/N:1-1/N]

Definition at line 28 of file FFT of a Simple Sinusoid.m.

Plot spectral magnitude

Definition at line 26 of file FFT of a Simple Sinusoid.m.

magX = abs(X)

Definition at line 27 of file FFT of a Simple Sinusoid.m.

ni = [0:.1:N-1]

Definition at line 17 of file FFT of a Simple Sinusoid.m.

Referenced by get_new_centroids().

hold off

Definition at line 19 of file FFT of a Simple Sinusoid.m.

Referenced by adts_decode_extradata(), amp_test(), asfrtp_parse_packet(), dc_test(), decode_1p_track(), decode_2p_track(), decode_bytes(), decode_frame(), dv_calc_mb_coordinates(), encode_scale_factors(), ff_asf_get_packet(), ff_asf_parse_packet(), ff_fix_long_p_mvs(), ff_h263_pred_motion(), ff_h264_filter_mb(), ff_id3v2_read(), ff_jpegls_decode_picture(), ff_mpc_dequantize_and_synth(), ff_mpeg_unref_picture(), ff_MPV_lowest_referenced_row(), ff_nelly_get_sample_bits(), ff_rtmp_packet_write(), ff_rtp_send_jpeg(), fill_gv_table(), flashsv_decode_frame(), generate_noise(), get_block_rd(), get_tag(), h263_mv4_search(), http_connect(), http_seek(), jpeg_parse_packet(), MC_avg_no_round_x_16_vis(), MC_avg_no_round_xy_16_vis(), MC_avg_x_16_vis(), MC_avg_x_8_vis(), MC_avg_xy_16_vis(), MC_avg_xy_8_vis(), MC_put_no_round_x_16_vis(), MC_put_no_round_x_8_vis(), MC_put_no_round_xy_16_vis(), MC_put_no_round_xy_8_vis(), MC_put_x_16_vis(), MC_put_x_8_vis(), MC_put_xy_16_vis(), MC_put_xy_8_vis(), motion_search(), mov_write_trailer(), mp3_read_header(), mpc7_decode_frame(), mpc8_decode_frame(), mpc8_handle_chunk(), output_frame(), prefetch_motion(), quantize_and_encode_band_cost_template(), ready_codebook(), rtmp_http_open(), rtmp_http_read(), skip_check(), smacker_read_packet(), sum_bits(), swr_convert_internal(), swri_rematrix(), tiff_decode_tag(), truespeech_apply_twopoint_filter(), tscc2_decode_frame(), tscc2_decode_slice(), unref_picture(), update_offsets(), vc1_decode_b_mb(), vc1_decode_b_mb_intfi(), vc1_decode_b_mb_intfr(), vc1_decode_p_block(), vc1_decode_p_mb(), vc1_decode_p_mb_intfi(), vc1_decode_p_mb_intfr(), vc1_interp_mc(), vc1_mc_1mv(), vc1_mc_4mv_chroma(), vc1_mc_4mv_chroma4(), vc1_mc_4mv_luma(), vc1_pred_b_mv(), vc1_pred_dc(), vc1_pred_mv(), vc1_pred_mv_intfr(), vorbis_floor1_decode(), vp56_decode_mb(), write_packet(), and wv_read_packet().

hold on

Definition at line 18 of file FFT of a Simple Sinusoid.m.

Sinusoidal Amplitude phi =0

Definition at line 7 of file FFT of a Simple Sinusoid.m.

Referenced by sbr_hf_inverse_filter().

Same thing on a dB scale

Definition at line 36 of file FFT of a Simple Sinusoid.m.

Referenced by add_8x8basis(), adpcm_decode_frame(), adx_decode(), adx_encode(), analyze_plane(), apply_intensity_stereo(), arith2_get_number(), arith2_get_prob(), av_fft_end(), avfilter_register_all(), bmv_aud_decode_frame(), comp_ppf_coeff(), config_props(), dca_decode_frame(), dca_lfe_fir_c(), dca_subframe_header(), dct_error(), decode_cce(), decode_init(), decode_segment(), decode_spectrum_and_dequant(), dnxhd_decode_dct_block(), draw_mandelbrot(), encode_init(), estimate_best_b_count(), estimate_dcs(), extrapolate_isf(), ff_h263_encode_mb(), ff_h263_pred_acdc(), ff_mpeg4_pred_dc(), ff_msmpeg4_pred_dc(), ff_mss34_gen_quant_mat(), ff_set_fixed_vector(), ff_simple_idct_vis(), ff_snow_pred_block(), ff_vc1_parse_frame_header(), ff_vc1_parse_frame_header_adv(), filter_frame(), float_to_fixed24_c(), formant_postfilter(), iac_generate_tabs(), init(), main(), mkv_write_chapters(), model256_update(), model2_update(), model_update(), mp_decode_layer2(), postProcess(), pred_mv(), pred_temp_direct_motion(), print_report(), quantize_lpc_coefs(), scale_slice(), swri_dither_init(), swri_get_dither(), synth_filter_float(), try_8x8basis(), uninit(), vc1_decode_i_block(), vc1_decode_i_block_adv(), vc1_decode_intra_block(), vc1_decode_p_block(), vc1_i_pred_dc(), VMUL2(), VMUL2S(), VMUL4(), and w_c().

Must be a power of two T =1

Definition at line 5 of file FFT of a Simple Sinusoid.m.

Referenced by get_context(), predict(), and wv_unpack_mono().

Discrete Time axis x =A*cos(2*pi*n*f*T+phi)

Definition at line 10 of file FFT of a Simple Sinusoid.m.

Referenced by a64multi_encode_frame(), add_dc(), add_rect_clamped_c(), add_yblock(), alac_entropy_coder(), all_same(), allocStuff(), amp_test(), analyze(), ape_decode_value_3860(), ape_decode_value_3900(), ape_decode_value_3990(), apply_delogo(), apply_ir_filter(), apply_loop_filter(), apply_unsharp(), aura_decode_frame(), av_bmg_get(), av_bswap16(), av_bswap32(), av_lzo1x_decode(), av_rc4_crypt(), av_reduce(), avfilter_graph_dump_to_buf(), avfilter_transform(), avg_no_rnd_vc1_chroma_mc8_c(), avpriv_color_frame(), avs_decode_frame(), avs_set_fps(), bitline2chunky(), bitplanar2chunky(), bitplane_decoding(), blend_line(), blend_line_hv(), blend_pixel(), blur(), blur_image(), blur_pixel(), build_abs_diff_mask(), build_basis(), build_diff_map(), build_filter(), BYTE_VEC(), calc_combed_score(), calc_diffs(), calculate_display_rect(), calculate_visual_weight(), cbp_test(), cdg_tile_block(), cdxl_decode_ham6(), cdxl_decode_ham8(), check_checksum(), cinepak_decode_vectors(), clean_mean(), clip_interval(), cmv_decode_inter(), codeblock(), compare_fields(), compose(), compose2D(), compute_metric(), config_input(), config_video_output(), context_init(), convert(), convert_mask_to_strength_mask(), copy_frame(), copy_rectangle(), correlate(), correlate_slice_buffered(), count_colors(), create_cel_evals(), dc_test(), dct_sad8x8_c(), DECLARE_ALIGNED(), decode(), decode_0(), decode_13(), decode_555(), decode_block(), decode_blocks(), decode_byterun(), decode_cell(), decode_cell_data(), decode_clnpass(), decode_colskip(), decode_decorrelation_matrix(), decode_deep_rle32(), decode_deep_tvdc32(), decode_frame(), decode_hybrid(), decode_i2_frame(), decode_i_frame(), decode_init(), decode_init_static(), decode_intra4x4_modes(), decode_line(), decode_mb_coeffs(), decode_mb_info(), decode_mvc1(), decode_mvc2(), decode_p_frame(), decode_plane(), decode_refpass(), decode_rgb8(), decode_rgb_frame(), decode_rgbn(), decode_rle(), decode_rowskip(), decode_scalar(), decode_segment(), decode_sgirle8(), decode_sigpass(), decode_slice(), decode_subband_slice_buffered(), decode_subframe(), decode_tile(), decompose(), decompose2D(), decorrelate(), DEFINE_BLEND(), deInterlaceBlendLinear(), deInterlaceFF(), deInterlaceInterpolateCubic(), deInterlaceInterpolateLinear(), deInterlaceL5(), deInterlaceMedian(), denoise_depth(), denoise_spatial(), denoise_temporal(), dequantize(), dequantize_slice_buffered(), dering(), diff_pixels_mvi(), diff_planes(), dirac_hpel_filter(), dirac_unpack_block_motion_data(), display_frame(), dnxhd_decode_macroblocks(), dnxhd_encode_fast(), dnxhd_encode_rdo(), dnxhd_find_qscale(), dnxhd_mb_var_thread(), do_a_deblock_C(), do_imdct(), doVertDefFilter(), doVertLowPass(), draw_dc(), draw_frame(), draw_glyph(), draw_glyphs(), draw_line(), draw_mandelbrot(), draw_n_color(), draw_text(), dv_calc_mb_coordinates(), dv_decode_video_segment(), dvb_encode_rle2(), dvb_encode_rle4(), dvb_encode_rle8(), dvbsub_parse_page_segment(), dvd_encode_rle(), dxt1_decode_pixels(), encode_15_7_sl(), encode_block(), encode_blocks(), encode_cblk(), encode_clnpass(), encode_dvb_subtitles(), encode_frame(), encode_gbrp10(), encode_gbrp12(), encode_line(), encode_picture_lossless(), encode_plane(), encode_refpass(), encode_rgb48_10bit(), encode_rgb_frame(), encode_sigpass(), encode_slice(), encode_subband_c0run(), encode_tile(), enlarge_roq_mb4(), estimate_sid_gain(), eval_expr(), eval_motion_dist(), event_loop(), ff_apply_vector_2x2(), ff_apply_vector_4x4(), ff_avc_find_startcode_internal(), ff_calculate_bounding_box(), ff_clear_fixed_vector(), ff_emulated_edge_mc(), ff_er_frame_end(), ff_fill_rectangle(), ff_gmc_c(), ff_gradfun_blur_line_c(), ff_gradfun_filter_line_c(), ff_h263_pred_acdc(), ff_h263_pred_dc(), ff_h264_alloc_tables(), ff_iir_filter_init(), ff_ivi_dc_col_slant(), ff_ivi_dc_haar_2d(), ff_ivi_dc_row_slant(), ff_ivi_dc_slant_2d(), ff_ivi_init_tiles(), ff_ivi_put_pixels_8x8(), ff_ivi_recompose53(), ff_ivi_recompose_haar(), ff_j2k_ceildiv(), ff_j2k_set_significant(), ff_jpegls_decode_picture(), ff_mdct_calc_c(), ff_mdct_calcw_c(), ff_mjpeg_find_marker(), ff_mpeg4_encode_mb(), ff_mxf_decode_pixel_layout(), ff_print_debug_info2(), ff_rle_encode(), ff_rm_parse_packet(), ff_rm_reorder_sipr_data(), ff_rtjpeg_decode_frame_yuv420(), ff_set_fixed_vector(), ff_snow_horizontal_compose97i(), ff_snow_inner_add_yblock(), ff_snow_pred_block(), ff_vorbis_ready_floor1_list(), ff_vp6_filter_diag4_c(), fill_block(), fill_border(), fill_from_cache(), fill_rectangle(), fill_yuv_image(), filter(), filter181(), filter_edges(), filter_edges_16bit(), filter_frame(), filter_line_c(), filter_line_c_16bit(), filter_mb_dir(), find_and_decode_index(), find_block_motion(), find_headers_search(), find_motion(), find_quant_thread(), find_smallest_bounding_rectangle(), for(), frame_block_to_cell(), freq_test(), full_search(), funny_diamond_search(), gbr24ptopacked24(), gbr24ptopacked32(), gen_image(), generate_half_size_image(), generate_noise(), geq_filter_frame(), get_4block_rd(), get_amv(), get_block_rd(), get_dc(), get_intra_count(), get_len(), get_qcx(), get_rac_count(), get_rice_ook(), get_sae(), get_siz(), get_video_page_offset(), get_visual_weight(), getpix(), getSSD(), gif_image_write_image(), gray2rgb(), h261_loop_filter(), h263_v_loop_filter_c(), halfpel_interpol(), hex_search(), horizontal_compose53i(), horizontal_compose_daub97i(), horizontal_compose_dd137i(), horizontal_compose_dd97i(), horizontal_compose_dirac53i(), horizontal_compose_fidelityi(), horizontal_compose_haari(), horizontal_decompose53i(), huffman_decode(), idcin_decode_vlcs(), idct_mb(), idct_put(), init(), init_block_mapping(), init_context_frame(), init_dequant4_coeff_table(), init_dequant8_coeff_table(), init_dequant_tables(), init_loop_filter(), init_multbl2(), init_mv_table(), init_obmc_weight_row(), init_ref(), initPv(), inter_predict(), INTERPOLATE_METHOD(), intlist_read(), intra_dc_prediction(), intra_pred_down_left(), intra_pred_down_right(), intra_pred_lp(), intra_pred_lp_left(), intra_pred_lp_top(), intra_pred_plane(), intra_predict(), ipvideo_decode_block_opcode_0x2(), ipvideo_decode_block_opcode_0x3(), ipvideo_decode_block_opcode_0x4(), ipvideo_decode_block_opcode_0x5(), ipvideo_decode_block_opcode_0x6_16(), ipvideo_decode_block_opcode_0x7(), ipvideo_decode_block_opcode_0x7_16(), ipvideo_decode_block_opcode_0x8(), ipvideo_decode_block_opcode_0x8_16(), ipvideo_decode_block_opcode_0x9(), ipvideo_decode_block_opcode_0x9_16(), ipvideo_decode_block_opcode_0xA(), ipvideo_decode_block_opcode_0xA_16(), ipvideo_decode_block_opcode_0xB_16(), ipvideo_decode_block_opcode_0xC(), ipvideo_decode_block_opcode_0xC_16(), ipvideo_decode_block_opcode_0xD_16(), ipvideo_decode_block_opcode_0xE_16(), ipvideo_decode_block_opcode_0xF(), ipvideo_decode_opcodes(), isVertMinMaxOk_C(), iterative_me(), ivi_output_plane(), ivi_process_empty_tile(), l2s_dia_search(), libopenjpeg_copy_packed16(), libopenjpeg_copy_packed8(), libopenjpeg_copy_to_packed16(), libopenjpeg_copy_to_packed8(), libopenjpeg_copy_unpacked16(), libopenjpeg_copy_unpacked8(), libopenjpeg_copyto16(), libopenjpeg_copyto8(), ljpeg_decode_yuv_scan(), lowdelay_subband(), lrintf_mips(), ls_decode_line(), ls_encode_line(), luma_abs_diff(), MAC64(), main(), matroska_parse_rm_audio(), mc_block(), mc_row(), mc_subpel(), mirror(), mjpeg_decode_scan(), MLS64(), mm_decode_inter(), mm_decode_intra(), modplug_read_packet(), mp_decode_line(), mp_read_changes_map(), mpeg4_decode_sprite_trajectory(), MPV_motion_internal(), mss2_decode_frame(), mss3_decode_frame(), mss4_decode_frame(), mv_test(), mxf_absolute_bodysid_offset(), mxf_compute_essence_containers(), mxf_compute_ptses_fake_index(), mxf_essence_container_end(), mxg_find_startmarker(), nsse16_c(), nsse8_c(), output_plane(), packedtogbr24p(), paint_mouse_pointer(), pcx_decode_frame(), pick_palette_entry(), picmemset(), picmemset_8bpp(), pix_norm1_c(), planar2x_c(), png_get_interlaced_row(), png_put_interlaced_row(), postProcess(), pow_m1_4(), pp_postprocess(), predict_slice(), predict_slice_buffered(), predictor_calc_error(), predictor_init_state(), pRNG(), process_frame_uyvy422(), process_frame_yuv420p(), process_frame_yuv422p(), propagate_block_data(), put_cursor(), put_dc(), put_image(), put_no_rnd_vc1_chroma_mc4_c(), put_no_rnd_vc1_chroma_mc8_c(), put_obmc(), put_signed_rect_clamped_c(), qtrle_decode_2n4bpp(), quantize(), ratecontrol_1pass(), raw_decode(), raw_encode(), read_mv_component(), read_uncompressed_sgi(), reconstruct_and_encode_image(), refill2(), render_charset(), render_line(), render_line_unrolled(), render_slice(), request_frame(), resampleCubic(), resampleLinear(), reverse_dc_prediction(), rgb15to16(), rgb15to16_c(), rgb16to15(), rgb16to15_c(), rgb24_to_yuv420p(), rgb24tobgr24(), rgb24tobgr24_c(), rice_decompress(), ring1_test(), ring2_test(), roqvideo_decode_frame(), sab_diamond_search(), sbr_hf_gen(), sbr_sum_square_c(), seqvideo_decode(), skip_check(), small_diamond_search(), spatial_compensation_0(), spatial_compensation_1(), spatial_compensation_10(), spatial_compensation_11(), spatial_compensation_2(), spatial_compensation_3(), spatial_compensation_4(), spatial_compensation_5(), spatial_compensation_6(), spatial_compensation_7(), spatial_compensation_8(), spatial_compensation_9(), spatial_compose53i_dy_buffered(), square(), sse(), ssim_4x4x2_core(), ssim_plane(), store_slice2_c(), store_slice_c(), sub2video_copy_rect(), subimage_with_fill(), subsampling_bounds(), sunrast_decode_frame(), sunrast_image_write_image(), super2xsai(), svq1_encode_plane(), svq3_mc_dir(), svq3_mc_dir_part(), sws_printVec2(), sws_scale(), targa_decode_rle(), tempNoiseReducer(), test_motion(), tgq_decode_frame(), tgv_decode_inter(), tmv_decode_frame(), to_meta_with_crop(), ulti_decode_frame(), umh_search(), unpack_coeffs(), v_block_filter(), vaapi_vc1_start_frame(), var_diamond_search(), vb_decode_framedata(), vblur(), vc1_pack_bitplanes(), vcr1_decode_frame(), vertX1Filter(), very_broken_op(), video_audio_display(), video_encode_example(), vp6_block_variance(), vp6_filter_hv4(), vqa_decode_chunk(), vsad16_c(), vsse16_c(), vu9_to_vu12(), vu9_to_vu12_c(), WORD_VEC(), x8_loop_filter(), xan_wc3_copy_pixel_run(), xan_wc3_decode_frame(), xan_wc3_output_pixel_run(), xget_zpixmap(), xvid_encode_close(), xvid_encode_frame(), xvid_encode_init(), xvid_ff_2pass_create(), yop_decode_frame(), yuy2toyv12(), yvu9_to_yuy2(), yvu9_to_yuy2_c(), zmbv_decode_xor_16(), zmbv_decode_xor_32(), zmbv_decode_xor_8(), and zmbv_me().

Sampled sinusoid X =fft(x)

Definition at line 11 of file FFT of a Simple Sinusoid.m.

Referenced by ff_yuv2packedX_altivec(), predictor_decode_stereo_3800(), predictor_decode_stereo_3930(), vc1_pred_b_mv(), and vc1_pred_mv().