FFmpeg: libavutil/intreadwrite.h File Reference

FFmpeg

libavutil

intreadwrite.h File Reference

#include <stdint.h>
#include "libavutil/avconfig.h"
#include "attributes.h"
#include "bswap.h"
#include "config.h"

Go to the source code of this file.

Data Structures

union av_alias

union unaligned_64

union unaligned_32

union unaligned_16

Macros

#define AV_RN(s, p) (((const union unaligned_##s *) (p))->l)

#define AV_WN(s, p, v) ((((union unaligned_##s *) (p))->l) = (v))

#define AV_RN16(p) AV_RN(16, p)

#define AV_RN32(p) AV_RN(32, p)

#define AV_RN64(p) AV_RN(64, p)

#define AV_WN16(p, v) AV_WN(16, p, v)

#define AV_WN32(p, v) AV_WN(32, p, v)

#define AV_WN64(p, v) AV_WN(64, p, v)

#define AV_RB(s, p) av_bswap##s(AV_RN##s(p))

#define AV_WB(s, p, v) AV_WN##s(p, av_bswap##s(v))

#define AV_RL(s, p) AV_RN##s(p)

#define AV_WL(s, p, v) AV_WN##s(p, v)

#define AV_RB8(x) (((const uint8_t*)(x))[0])

#define AV_WB8(p, d) do { ((uint8_t*)(p))[0] = (d); } while(0)

#define AV_RL8(x) AV_RB8(x)

#define AV_WL8(p, d) AV_WB8(p, d)

#define AV_RB16(p) AV_RB(16, p)

#define AV_WB16(p, v) AV_WB(16, p, v)

#define AV_RL16(p) AV_RL(16, p)

#define AV_WL16(p, v) AV_WL(16, p, v)

#define AV_RB32(p) AV_RB(32, p)

#define AV_WB32(p, v) AV_WB(32, p, v)

#define AV_RL32(p) AV_RL(32, p)

#define AV_WL32(p, v) AV_WL(32, p, v)

#define AV_RB64(p) AV_RB(64, p)

#define AV_WB64(p, v) AV_WB(64, p, v)

#define AV_RL64(p) AV_RL(64, p)

#define AV_WL64(p, v) AV_WL(64, p, v)

#define AV_RB24(x)

#define AV_WB24(p, d)

#define AV_RL24(x)

#define AV_WL24(p, d)

#define AV_RB48(x)

#define AV_WB48(p, darg)

#define AV_RL48(x)

#define AV_WL48(p, darg)

#define AV_RNA(s, p) (((const av_alias##s*)(p))->u##s)

#define AV_WNA(s, p, v) (((av_alias##s*)(p))->u##s = (v))

#define AV_RN16A(p) AV_RNA(16, p)

#define AV_RN32A(p) AV_RNA(32, p)

#define AV_RN64A(p) AV_RNA(64, p)

#define AV_WN16A(p, v) AV_WNA(16, p, v)

#define AV_WN32A(p, v) AV_WNA(32, p, v)

#define AV_WN64A(p, v) AV_WNA(64, p, v)

#define AV_COPYU(n, d, s) AV_WN##n(d, AV_RN##n(s));

#define AV_COPY16U(d, s) AV_COPYU(16, d, s)

#define AV_COPY32U(d, s) AV_COPYU(32, d, s)

#define AV_COPY64U(d, s) AV_COPYU(64, d, s)

#define AV_COPY128U(d, s)

#define AV_COPY(n, d, s) (((av_alias##n*)(d))->u##n = ((const av_alias##n*)(s))->u##n)

#define AV_COPY16(d, s) AV_COPY(16, d, s)

#define AV_COPY32(d, s) AV_COPY(32, d, s)

#define AV_COPY64(d, s) AV_COPY(64, d, s)

#define AV_COPY128(d, s)

#define AV_SWAP(n, a, b) FFSWAP(av_alias##n, *(av_alias##n*)(a), *(av_alias##n*)(b))

#define AV_SWAP64(a, b) AV_SWAP(64, a, b)

#define AV_ZERO(n, d) (((av_alias##n*)(d))->u##n = 0)

#define AV_ZERO16(d) AV_ZERO(16, d)

#define AV_ZERO32(d) AV_ZERO(32, d)

#define AV_ZERO64(d) AV_ZERO(64, d)

#define AV_ZERO128(d)

Variables

union unaligned_64 av_alias

Macro Definition Documentation

#define AV_RN ( s,

) (((const union unaligned_##s *) (p))->l)

Definition at line 224 of file intreadwrite.h.

#define AV_WN ( s,

) ((((union unaligned_##s *) (p))->l) = (v))

Definition at line 225 of file intreadwrite.h.

Referenced by libschroedinger_decode_frame().

#define AV_RN16 ( p ) AV_RN(16, p)

Definition at line 360 of file intreadwrite.h.

Referenced by cdxl_read_probe(), fill16(), mxf_probe(), and wtvfile_open2().

#define AV_RN32 ( p ) AV_RN(32, p)

Definition at line 364 of file intreadwrite.h.

Referenced by av_image_copy_to_buffer(), avg_c(), bmp_probe(), cdxl_read_probe(), decode_deep_rle32(), dpx_probe(), epaf_probe(), fill32(), ircam_probe(), mxf_probe(), mxg_find_startmarker(), pmp_probe(), put_no_rnd_pixels_l2(), and targa_encode_frame().

#define AV_RN64 ( p ) AV_RN(64, p)

Definition at line 368 of file intreadwrite.h.

Referenced by addkey_s(), av_adler32_update(), cdxl_read_probe(), ff_asfcrypt_dec(), ff_cavs_filter(), get(), intra_pred_vert(), and libschroedinger_decode_frame().

#define AV_WN16 ( p,

) AV_WN(16, p, v)

Definition at line 372 of file intreadwrite.h.

Referenced by generate_missing_ref(), read_ya16be_alpha_c(), read_ya16be_gray_c(), read_ya16le_alpha_c(), read_ya16le_gray_c(), and rle_unpack().

#define AV_WN32 ( p,

) AV_WN(32, p, v)

Definition at line 376 of file intreadwrite.h.

Referenced by av_base64_decode(), decode_frame(), fill16(), fill24(), fill32(), import_palette(), and lag_decode_frame().

#define AV_WN64 ( p,

) AV_WN(64, p, v)

Definition at line 380 of file intreadwrite.h.

Referenced by addkey_d(), decode_mb_row_no_filter(), and get().

#define AV_RB ( s,

) av_bswap##s(AV_RN##s(p))

Definition at line 389 of file intreadwrite.h.

#define AV_WB ( s,

) AV_WN##s(p, av_bswap##s(v))

Definition at line 390 of file intreadwrite.h.

#define AV_RL ( s,

) AV_RN##s(p)

Definition at line 391 of file intreadwrite.h.

#define AV_WL ( s,

) AV_WN##s(p, v)

Definition at line 392 of file intreadwrite.h.

#define AV_RB8 ( x ) (((const uint8_t*)(x))[0])

Definition at line 395 of file intreadwrite.h.

#define AV_WB8 ( p,

) do { ((uint8_t*)(p))[0] = (d); } while(0)

Definition at line 396 of file intreadwrite.h.

Referenced by alac_encode_init().

#define AV_RL8 ( x ) AV_RB8(x)

Definition at line 398 of file intreadwrite.h.

Referenced by avcodec_decode_audio4(), libopus_decode_init(), and opus_header().

#define AV_WL8 ( p,

) AV_WB8(p, d)

Definition at line 399 of file intreadwrite.h.

#define AV_RB16 ( p ) AV_RB(16, p)

Definition at line 402 of file intreadwrite.h.

#define AV_WB16 ( p,

) AV_WB(16, p, v)

Definition at line 405 of file intreadwrite.h.

Referenced by adx_encode(), av_write_image_line(), concatenate_packet(), decode_frame(), dnxhd_write_header(), encode_slice(), encrypt_counter(), ff_rtp_send_aac(), ff_rtp_send_xiph(), ff_rtsp_tcp_write_packet(), fillPlane16(), jpeg_create_header(), jpeg_put_comments(), jpeg_table_header(), mov_read_chapters(), mov_text_encode_frame(), mp3_update_xing(), nal_send(), output_frame_end(), planarCopyWrapper(), prores_encode_picture(), put_system_header(), qdm2_restore_block(), rgb48Toxyz12(), rsd_read_header(), sap_write_header(), sctp_read(), sp5x_decode_frame(), spdif_header_dts4(), text2movsub(), write_cvid_header(), write_strip_header(), and xyz12Torgb48().

#define AV_RL16 ( p ) AV_RL(16, p)

Definition at line 409 of file intreadwrite.h.

#define AV_WL16 ( p,

) AV_WL(16, p, v)

Definition at line 412 of file intreadwrite.h.

Referenced by ape_read_header(), av_write_image_line(), bmp_encode_frame(), decode_frame(), dfa_read_header(), encode_init(), fillPlane16(), matroska_parse_wavpack(), oma_read_header(), planarCopyWrapper(), rgb48Toxyz12(), siff_read_packet(), smush_read_header(), targa_encode_frame(), wsaud_read_packet(), wsvqa_read_packet(), and xyz12Torgb48().

#define AV_RB32 ( p ) AV_RB(32, p)

Definition at line 416 of file intreadwrite.h.

#define AV_WB32 ( p,

) AV_WB(32, p, v)

Definition at line 419 of file intreadwrite.h.

Referenced by a64multi_encode_frame(), a64multi_encode_init(), alac_encode_init(), alloc_and_copy(), apng_read_header(), apply_color_indexing_transform(), av_blowfish_crypt(), av_hash_final(), av_sha512_final(), av_sha_final(), avui_encode_init(), create_iv(), decipher(), decode_entropy_coded_image(), dnxhd_encode_picture(), dnxhd_write_header(), dv_read_header(), dv_write_pack(), dyn_packet_buf_write(), encipher(), encode_codebook(), encode_frame(), encode_mode(), expect_tag(), ff_avc_write_annexb_extradata(), ff_rtmp_packet_write(), ff_srtp_decrypt(), ff_srtp_encrypt(), ffm_write_packet(), filter_frame(), find_expected_header(), inv_predict_0(), main(), matroska_parse_tracks(), mov_create_dvd_sub_decoder_specific_info(), mov_create_timecode_track(), mov_read_atom_into_extradata(), mp3_header_decompress(), mp3_update_xing(), mpegts_write_packet_internal(), parse_playlist(), prores_encode_picture(), put_bits(), qdm2_parse_config(), read_kuki_chunk(), redspark_probe(), rtmp_send_hs_packet(), rtmp_server_handshake(), sunrast_encode_frame(), super2xsai(), svq3_parse_packet(), utvideo_encode_init(), vda_h264_decode_slice(), vda_old_h264_decode_slice(), xmv_fetch_video_packet(), xmv_read_extradata(), and xtea_crypt_ecb().

#define AV_RL32 ( p ) AV_RL(32, p)

Definition at line 423 of file intreadwrite.h.

#define AV_WL32 ( p,

) AV_WL(32, p, v)

Definition at line 426 of file intreadwrite.h.

Referenced by aac_decode_frame_int(), add_metadata(), ape_read_packet(), apng_read_header(), av_image_copy_to_buffer(), av_lfg_init(), av_md5_final(), av_ripemd_final(), avi_read_tag(), celt_header(), encode_frame(), encode_init(), ff_read_riff_info(), libopus_encode(), matroska_parse_frame(), matroska_parse_wavpack(), mkv_strip_wavpack(), mov_read_atom_into_extradata(), mp3_update_xing(), ogg_build_speex_headers(), ogg_read_packet(), oma_read_header(), parse_vtrk(), png_write_chunk(), put_bits(), read_frame_internal(), read_header(), read_packet(), read_sm_data(), rm_assemble_video_frame(), rm_read_audio_stream_info(), rtmpe9_sig(), rtp_asf_fix_header(), sbg_read_packet(), send_command_packet(), set_codec_str(), smush_read_header(), srt_read_header(), super2xsai(), svq3_decode_slice_header(), targa_encode_frame(), tf_h(), tf_h0(), tf_RS(), twofish_decrypt(), twofish_encrypt(), utvideo_encode_init(), v410_encode_frame(), vorbis_header(), wavpack_encode_block(), webp_decode_frame(), and write_extradata().

#define AV_RB64 ( p ) AV_RB(64, p)

Definition at line 430 of file intreadwrite.h.

#define AV_WB64 ( p,

) AV_WB(64, p, v)

Definition at line 433 of file intreadwrite.h.

Referenced by av_des_crypt_mac(), av_sha512_final(), camellia_decrypt(), camellia_encrypt(), create_iv(), encode_frame(), ffm_write_packet(), matroska_parse_frame(), mkv_write_header(), mxf_gen_umid(), read_sm_data(), and storeframe().

#define AV_RL64 ( p ) AV_RL(64, p)

Definition at line 437 of file intreadwrite.h.

#define AV_WL64 ( p,

) AV_WL(64, p, v)

Definition at line 440 of file intreadwrite.h.

Referenced by av_murmur3_final(), ff_asfcrypt_dec(), sbg_read_packet(), and tta_decode_init().

#define AV_RB24 ( x )

Value:

((((const uint8_t*)(x))[0] << 16) | \

(((const uint8_t*)(x))[1] << 8) | \

((const uint8_t*)(x))[2])

Definition at line 444 of file intreadwrite.h.

#define AV_WB24 ( p,

)

Value:

do { \

((uint8_t*)(p))[2] = (d); \

((uint8_t*)(p))[1] = (d)>>8; \

((uint8_t*)(p))[0] = (d)>>16; \

} while(0)

Definition at line 450 of file intreadwrite.h.

Referenced by copy_elem(), decode_frame(), decode_region(), decode_region_intra(), decode_region_masked(), decode_rle(), encode_frame(), ffm_write_packet(), fill_picture_rgb(), filter_slice(), find_expected_header(), init_file(), lag_decode_frame(), put_flac_codecpriv(), write_chunk_header(), write_cvid_header(), and write_strip_header().

#define AV_RL24 ( x )

Value:

((((const uint8_t*)(x))[2] << 16) | \

(((const uint8_t*)(x))[1] << 8) | \

((const uint8_t*)(x))[0])

Definition at line 458 of file intreadwrite.h.

#define AV_WL24 ( p,

)

Value:

do { \

((uint8_t*)(p))[0] = (d); \

((uint8_t*)(p))[1] = (d)>>8; \

((uint8_t*)(p))[2] = (d)>>16; \

} while(0)

Definition at line 464 of file intreadwrite.h.

Referenced by cdxl_decode_ham6(), cdxl_decode_ham8(), super2xsai(), and targa_encode_frame().

#define AV_RB48 ( x )

Value:

(((uint64_t)((const uint8_t*)(x))[0] << 40) | \

((uint64_t)((const uint8_t*)(x))[1] << 32) | \

((uint64_t)((const uint8_t*)(x))[2] << 24) | \

((uint64_t)((const uint8_t*)(x))[3] << 16) | \

((uint64_t)((const uint8_t*)(x))[4] << 8) | \

(uint64_t)((const uint8_t*)(x))[5])

Definition at line 472 of file intreadwrite.h.

Referenced by filter_slice().

#define AV_WB48 ( p,

darg

)

Value:

do { \

uint64_t d = (darg); \

((uint8_t*)(p))[5] = (d); \

((uint8_t*)(p))[4] = (d)>>8; \

((uint8_t*)(p))[3] = (d)>>16; \

((uint8_t*)(p))[2] = (d)>>24; \

((uint8_t*)(p))[1] = (d)>>32; \

((uint8_t*)(p))[0] = (d)>>40; \

} while(0)

Definition at line 481 of file intreadwrite.h.

Referenced by filter_slice().

#define AV_RL48 ( x )

Value:

(((uint64_t)((const uint8_t*)(x))[5] << 40) | \

((uint64_t)((const uint8_t*)(x))[4] << 32) | \

((uint64_t)((const uint8_t*)(x))[3] << 24) | \

((uint64_t)((const uint8_t*)(x))[2] << 16) | \

((uint64_t)((const uint8_t*)(x))[1] << 8) | \

(uint64_t)((const uint8_t*)(x))[0])

Definition at line 493 of file intreadwrite.h.

#define AV_WL48 ( p,

darg

)

Value:

do { \

uint64_t d = (darg); \

((uint8_t*)(p))[0] = (d); \

((uint8_t*)(p))[1] = (d)>>8; \

((uint8_t*)(p))[2] = (d)>>16; \

((uint8_t*)(p))[3] = (d)>>24; \

((uint8_t*)(p))[4] = (d)>>32; \

((uint8_t*)(p))[5] = (d)>>40; \

} while(0)

Definition at line 502 of file intreadwrite.h.

#define AV_RNA ( s,

) (((const av_alias##s*)(p))->u##s)

Definition at line 518 of file intreadwrite.h.

#define AV_WNA ( s,

) (((av_alias##s*)(p))->u##s = (v))

Definition at line 519 of file intreadwrite.h.

#define AV_RN16A ( p ) AV_RNA(16, p)

Definition at line 522 of file intreadwrite.h.

Referenced by dctcoef_get(), decode_coeffs(), inter_recon(), and intra_recon().

#define AV_RN32A ( p ) AV_RNA(32, p)

Definition at line 526 of file intreadwrite.h.

Referenced by avg_c(), dca_qmf_32_subbands(), dctcoef_get(), decode_coeffs(), decode_mode(), decode_splitmvs(), derive_spatial_merge_candidates(), ff_h264_decode_nal(), ff_hevc_extract_rbsp(), find_ref_mvs(), output_plane(), pred_pskip_motion(), pred_spatial_direct_motion(), vert_4x4_c(), vp7_decode_mvs(), vp8_decode_mvs(), vp8_mc_chroma(), vp8_mc_luma(), and xwd_encode_frame().

#define AV_RN64A ( p ) AV_RNA(64, p)

Definition at line 530 of file intreadwrite.h.

Referenced by decode_coeffs(), decodeplane8(), ff_h264_decode_nal(), ff_hevc_extract_rbsp(), get_dct8x8_allowed(), idctRowCondDC(), vert_16x16_c(), vert_32x32_c(), and vert_8x8_c().

#define AV_WN16A ( p,

) AV_WNA(16, p, v)

Definition at line 534 of file intreadwrite.h.

Referenced by dctcoef_set(), decode_coeffs(), decode_frame(), expand_rle_row16(), mss4_decode_dct_block(), pcm_decode_frame(), and setctx_2d().

#define AV_WN32A ( p,

) AV_WNA(32, p, v)

Definition at line 538 of file intreadwrite.h.

Referenced by avg_c(), dc_127_4x4_c(), dc_128_4x4_c(), dc_129_4x4_c(), dc_4x4_c(), dc_left_4x4_c(), dc_top_4x4_c(), dca_qmf_32_subbands(), dctcoef_set(), decode_coeffs(), decode_mb_mode(), decode_mb_row_no_filter(), decode_mode(), decode_splitmvs(), ff_h264_decode_mb_cabac(), fill_decode_caches(), fill_filter_caches_inter(), hor_4x4_c(), intra_predict(), output_plane(), pcx_decode_frame(), pred4x4_horizontal_vp8_c(), pred4x4_vertical_vp8_c(), pred_temp_direct_motion(), put_no_rnd_pixels_l2(), qtrle_decode_32bpp(), set_4x4_block(), setctx_2d(), super2xsai(), svq3_mc_dir(), vert_4x4_c(), vp78_decode_mv_mb_modes(), and vp7_decode_mvs().

#define AV_WN64A ( p,

) AV_WNA(64, p, v)

Definition at line 542 of file intreadwrite.h.

Referenced by dc_127_16x16_c(), dc_127_32x32_c(), dc_127_8x8_c(), dc_128_16x16_c(), dc_128_32x32_c(), dc_128_8x8_c(), dc_129_16x16_c(), dc_129_32x32_c(), dc_129_8x8_c(), dc_16x16_c(), dc_32x32_c(), dc_8x8_c(), dc_left_16x16_c(), dc_left_32x32_c(), dc_left_8x8_c(), dc_top_16x16_c(), dc_top_32x32_c(), dc_top_8x8_c(), decodeplane8(), ff_h264_filter_mb(), fill_64(), filter_mb_dir(), h264_filter_mb_fast_internal(), hor_16x16_c(), hor_32x32_c(), hor_8x8_c(), setctx_2d(), vert_16x16_c(), vert_32x32_c(), and vert_8x8_c().

#define AV_COPYU ( n,

) AV_WN##n(d, AV_RN##n(s));

Definition at line 550 of file intreadwrite.h.

#define AV_COPY16U ( d,

) AV_COPYU(16, d, s)

Definition at line 553 of file intreadwrite.h.

Referenced by av_memcpy_backptr(), and copy_block2().

#define AV_COPY32U ( d,

) AV_COPYU(32, d, s)

Definition at line 557 of file intreadwrite.h.

Referenced by av_memcpy_backptr(), copy(), copy_block4(), and dxtory_decode_v1_410().

#define AV_COPY64U ( d,

) AV_COPYU(64, d, s)

Definition at line 561 of file intreadwrite.h.

Referenced by copy_block8(), copy_block9(), and copy_CTB().

#define AV_COPY128U ( d,

)

Value:

do { \

AV_COPY64U(d, s); \

AV_COPY64U((char *)(d) + 8, (const char *)(s) + 8); \

} while(0)

Definition at line 565 of file intreadwrite.h.

Referenced by copy_block16(), and copy_block17().

#define AV_COPY ( n,

) (((av_alias##n*)(d))->u##n = ((const av_alias##n*)(s))->u##n)

Definition at line 578 of file intreadwrite.h.

#define AV_COPY16 ( d,

) AV_COPY(16, d, s)

Definition at line 582 of file intreadwrite.h.

Referenced by dxtory_decode_v1_420(), fill_decode_caches(), and write_back_motion_list().

#define AV_COPY32 ( d,

) AV_COPY(32, d, s)

Definition at line 586 of file intreadwrite.h.

Referenced by apply_color_indexing_transform(), apply_obmc(), decode_entropy_coded_image(), decode_mode(), derive_spatial_merge_candidates(), fill_decode_caches(), fill_filter_caches(), fill_filter_caches_inter(), intra_predict(), inv_predict_1(), inv_predict_11(), inv_predict_2(), inv_predict_3(), inv_predict_4(), svq3_decode_mb(), write_back_intra_pred_mode(), and write_back_non_zero_count().

#define AV_COPY64 ( d,

) AV_COPY(64, d, s)

Definition at line 590 of file intreadwrite.h.

Referenced by backup_mb_border(), fill_decode_caches(), and write_back_motion_list().

#define AV_COPY128 ( d,

)

Value:

do { \

AV_COPY64(d, s); \

AV_COPY64((char*)(d)+8, (char*)(s)+8); \

} while(0)

Definition at line 594 of file intreadwrite.h.

Referenced by backup_mb_border(), copy_CTB(), dca_subsubframe(), fill_decode_caches(), fill_filter_caches_inter(), and write_back_motion_list().

#define AV_SWAP ( n,

) FFSWAP(av_alias##n, *(av_alias##n*)(a), *(av_alias##n*)(b))

Definition at line 601 of file intreadwrite.h.

#define AV_SWAP64 ( a,

) AV_SWAP(64, a, b)

Definition at line 604 of file intreadwrite.h.

#define AV_ZERO ( n,

) (((av_alias##n*)(d))->u##n = 0)

Definition at line 607 of file intreadwrite.h.

#define AV_ZERO16 ( d ) AV_ZERO(16, d)

Definition at line 610 of file intreadwrite.h.

Referenced by derive_spatial_merge_candidates(), and fill_decode_caches().

#define AV_ZERO32 ( d ) AV_ZERO(32, d)

Definition at line 614 of file intreadwrite.h.

Referenced by decode_mb_mode(), decode_splitmvs(), derive_spatial_merge_candidates(), fetch_diagonal_mv(), fill_decode_caches(), fill_filter_caches_inter(), find_ref_mvs(), hevc_luma_mv_mpv_mode(), pred_spatial_direct_motion(), svq3_decode_mb(), vp7_decode_mvs(), and vp8_decode_mvs().

#define AV_ZERO64 ( d ) AV_ZERO(64, d)

Definition at line 618 of file intreadwrite.h.

Referenced by decode_mb_row_no_filter(), fill_decode_caches(), fill_mv(), and filter_mb_dir().

#define AV_ZERO128 ( d )

Value:

do { \

AV_ZERO64(d); \

AV_ZERO64((char*)(d)+8); \

} while(0)

Definition at line 622 of file intreadwrite.h.

Referenced by decode_cabac_luma_residual(), decode_luma_residual(), fill_decode_caches(), fill_filter_caches_inter(), intra_predict(), svq3_decode_mb(), and write_back_motion_list().

Variable Documentation

union unaligned_16 av_alias

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