external API header More...
#include <errno.h>
#include "libavutil/samplefmt.h"
#include "libavutil/avutil.h"
#include "libavutil/cpu.h"
#include "libavutil/dict.h"
#include "libavcodec/version.h"
#include "libavutil/audioconvert.h"
Go to the source code of this file.
external API header
Definition in file avcodec.h.
#define AV_PARSER_PTS_NB 4 |
Definition at line 3955 of file avcodec.h.
Referenced by av_parser_parse2().
#define AV_PKT_FLAG_KEY 0x0001 |
Definition at line 962 of file avcodec.h.
Referenced by asf_read_pts(), asf_write_packet(), avi_write_packet(), decode_frame(), ff_mov_add_hinted_packet(), ff_mov_write_packet(), ffm_write_packet(), flv_write_packet(), get_needed_flags(), http_prepare_data(), main(), matroska_parse_block(), mov_create_chapter_track(), mov_read_packet(), nsv_read_chunk(), ogg_read_packet(), ogg_read_timestamp(), ogg_write_packet(), output_packet(), prepare_packet(), put_payload_header(), qt_rtp_parse_packet(), rm_write_audio(), search_hi_lo_keyframes(), show_packet(), vc1t_read_packet(), vc1test_write_packet(), and write_frame().
#define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000 |
Definition at line 445 of file avcodec.h.
Referenced by audio_decode_example(), avcodec_decode_audio3(), dv_assemble_frame(), dv_init_mux(), output_packet(), and vorbis_parse_id_hdr().
#define AVPALETTE_COUNT 256 |
Definition at line 2987 of file avcodec.h.
Referenced by cmv_process_header(), decode_frame(), tgv_decode_frame(), and xan_decode_frame().
#define AVPALETTE_SIZE 1024 |
AVPaletteControl This structure defines a method for communicating palette changes between and demuxer and a decoder.
Definition at line 2986 of file avcodec.h.
Referenced by asf_read_stream_properties(), avi_read_header(), cinepak_decode_frame(), cmv_decode_frame(), decode_dvd_subtitles(), decode_frame(), display_end_segment(), dvbsub_display_end_segment(), flic_decode_frame_8BPP(), mm_decode_frame(), msrle_decode_frame(), msvideo1_decode_8bit(), qtrle_decode_frame(), raw_decode(), rl2_decode_frame(), smc_decode_stream(), tgv_decode_frame(), and xan_decode_frame().
#define CH_FRONT_LEFT_OF_CENTER AV_CH_FRONT_LEFT_OF_CENTER |
#define CH_FRONT_RIGHT_OF_CENTER AV_CH_FRONT_RIGHT_OF_CENTER |
#define CH_LAYOUT_NATIVE AV_CH_LAYOUT_NATIVE |
Channel mask value used for AVCodecContext.request_channel_layout to indicate that the user requests the channel order of the decoder output to be the native codec channel order.
#define CH_LAYOUT_STEREO_DOWNMIX AV_CH_LAYOUT_STEREO_DOWNMIX |
#define CODEC_CAP_CHANNEL_CONF 0x0400 |
#define CODEC_CAP_DELAY 0x0020 |
Codec has a nonzero delay and needs to be fed with NULL at the end to get the delayed data.
If this is not set, the codec is guaranteed to never be fed with NULL data.
Definition at line 668 of file avcodec.h.
Referenced by avcodec_decode_audio3(), avcodec_decode_video2(), avcodec_encode_audio(), avcodec_encode_video(), and submit_packet().
#define CODEC_CAP_DR1 0x0002 |
Codec uses get_buffer() for allocating buffers and supports custom allocators.
If not set, it might not use get_buffer() at all or use operations that assume the buffer was allocated by avcodec_default_get_buffer.
Definition at line 658 of file avcodec.h.
Referenced by input_init(), opt_codecs(), and stream_component_open().
#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 |
Decoder can use draw_horiz_band callback.
Definition at line 652 of file avcodec.h.
Referenced by MPV_frame_end(), and opt_codecs().
#define CODEC_CAP_EXPERIMENTAL 0x0200 |
Codec is experimental and is thus avoided in favor of non experimental encoders.
Definition at line 694 of file avcodec.h.
Referenced by avcodec_find_decoder(), avcodec_find_encoder(), and find_codec_or_die().
#define CODEC_CAP_FRAME_THREADS 0x1000 |
#define CODEC_CAP_HWACCEL_VDPAU 0x0080 |
Codec can export data for HW decoding (VDPAU).
Definition at line 677 of file avcodec.h.
Referenced by decode_nal_units(), execute_decode_slices(), ff_draw_horiz_band(), ff_er_frame_end(), ff_h263_decode_frame(), field_end(), MPV_frame_end(), and vc1_decode_frame().
#define CODEC_CAP_LOSSLESS 0x80000000 |
#define CODEC_CAP_NEG_LINESIZES 0x0800 |
Codec is able to deal with negative linesizes.
Definition at line 703 of file avcodec.h.
Referenced by input_get_buffer().
#define CODEC_CAP_PARSE_ONLY 0x0004 |
Definition at line 660 of file avcodec.h.
Referenced by open_parser().
#define CODEC_CAP_SLICE_THREADS 0x2000 |
Codec supports slice-based (or partition-based) multithreading.
Definition at line 712 of file avcodec.h.
Referenced by validate_thread_parameters().
#define CODEC_CAP_SMALL_LAST_FRAME 0x0040 |
Codec can be fed a final frame with a smaller size.
This can be used to prevent truncation of the last audio samples.
Definition at line 673 of file avcodec.h.
Referenced by output_packet().
#define CODEC_CAP_SUBFRAMES 0x0100 |
Codec can output multiple frames per AVPacket Normally demuxers return one frame at a time, demuxers which do not do are connected to a parser to split what they return into proper frames.
This flag is reserved to the very rare category of codecs which have a bitstream that cannot be split into frames without timeconsuming operations like full decoding. Demuxers carring such bitstreams thus may return multiple frames in a packet. This has many disadvantages like prohibiting stream copy in many cases thus it should only be considered as a last resort.
#define CODEC_CAP_TRUNCATED 0x0008 |
Definition at line 661 of file avcodec.h.
Referenced by opt_codecs(), and video_decode_example().
#define CODEC_FLAG2_8X8DCT 0x00000080 |
#define CODEC_FLAG2_AUD 0x00000200 |
#define CODEC_FLAG2_BIT_RESERVOIR 0x00020000 |
Use a bit reservoir when encoding if possible.
Definition at line 639 of file avcodec.h.
Referenced by MP3lame_encode_init().
#define CODEC_FLAG2_BPYRAMID 0x00000010 |
H.264 allow B-frames to be used as references.
Definition at line 626 of file avcodec.h.
Referenced by X264_init().
#define CODEC_FLAG2_BRDO 0x00000400 |
#define CODEC_FLAG2_CHUNKS 0x00008000 |
Input bitstream might be truncated at a packet boundaries instead of only at frame boundaries.
Definition at line 637 of file avcodec.h.
Referenced by decode_frame(), decode_nal_units(), and validate_thread_parameters().
#define CODEC_FLAG2_DROP_FRAME_TIMECODE 0x00002000 |
timecode is in drop frame format.
Definition at line 635 of file avcodec.h.
Referenced by encode_init(), and mpeg1_encode_sequence_header().
#define CODEC_FLAG2_FAST 0x00000001 |
Allow non spec compliant speedup tricks.
Definition at line 622 of file avcodec.h.
Referenced by decode_slice_header(), ff_h263_decode_frame(), ff_h264_decode_nal(), and mpeg_decode_mb().
#define CODEC_FLAG2_FASTPSKIP 0x00000100 |
#define CODEC_FLAG2_INTRA_REFRESH 0x00200000 |
#define CODEC_FLAG2_INTRA_VLC 0x00000800 |
Use MPEG-2 intra VLC table.
Definition at line 633 of file avcodec.h.
Referenced by MPV_encode_init().
#define CODEC_FLAG2_LOCAL_HEADER 0x00000008 |
Place global headers at every keyframe instead of in extradata.
Definition at line 625 of file avcodec.h.
Referenced by av_parser_change(), dump_extradata(), and remove_extradata().
#define CODEC_FLAG2_MBTREE 0x00040000 |
#define CODEC_FLAG2_MEMC_ONLY 0x00001000 |
Only do ME/MC (I frames -> ref, P frame -> ME+MC).
Definition at line 634 of file avcodec.h.
Referenced by encode_frame().
#define CODEC_FLAG2_MIXED_REFS 0x00000040 |
#define CODEC_FLAG2_NO_OUTPUT 0x00000004 |
Skip bitstream encoding.
Definition at line 624 of file avcodec.h.
Referenced by encode_422_bitstream(), encode_bgr_bitstream(), encode_frame(), encode_gray_bitstream(), ff_h263_encode_motion_vector(), and mpeg4_encode_blocks().
#define CODEC_FLAG2_NON_LINEAR_QUANT 0x00010000 |
#define CODEC_FLAG2_PSY 0x00080000 |
#define CODEC_FLAG2_SKIP_RD 0x00004000 |
RD optimal MB level residual skipping.
Definition at line 636 of file avcodec.h.
Referenced by encode_thread().
#define CODEC_FLAG2_SSIM 0x00100000 |
#define CODEC_FLAG2_STRICT_GOP 0x00000002 |
Strictly enforce GOP size.
Definition at line 623 of file avcodec.h.
Referenced by select_input_picture().
#define CODEC_FLAG2_WPRED 0x00000020 |
#define CODEC_FLAG_4MV 0x0004 |
4 MV per MB allowed / advanced prediction for H.263.
Definition at line 585 of file avcodec.h.
Referenced by check_input_motion(), ff_estimate_p_frame_motion(), ff_fix_long_p_mvs(), MPV_encode_init(), and xvid_encode_init().
#define CODEC_FLAG_AC_PRED 0x01000000 |
H.263 advanced intra coding / MPEG-4 AC prediction.
Definition at line 611 of file avcodec.h.
Referenced by mpeg4_encode_mb(), and xvid_encode_init().
#define CODEC_FLAG_ALT_SCAN 0x00100000 |
#define CODEC_FLAG_BITEXACT 0x00800000 |
Use only bitexact stuff (except (I)DCT).
Definition at line 609 of file avcodec.h.
Referenced by aac_encode_frame(), ac3_decode_init(), dsputil_init_mmx(), dsputil_init_pix_mmx(), dsputilenc_init_mmx(), encode_block(), ff_ac3_encode_init(), ff_dct_common_init(), ff_fmt_convert_init_altivec(), ff_fmt_convert_init_arm(), ff_fmt_convert_init_x86(), flac_write_header(), float_init_altivec(), jpeg_put_comments(), mkv_write_header(), mov_write_udta_tag(), mpeg4_encode_vol_header(), MPV_common_init_mmx(), mxf_write_header(), mxf_write_identification(), ogg_write_header(), and read_ffserver_streams().
#define CODEC_FLAG_CBP_RD 0x04000000 |
Use rate distortion optimization for cbp.
Definition at line 613 of file avcodec.h.
Referenced by encode_mb_internal(), get_b_cbp(), get_p_cbp(), and MPV_encode_init().
#define CODEC_FLAG_CLOSED_GOP 0x80000000 |
Definition at line 621 of file avcodec.h.
Referenced by libschroedinger_encode_init(), mpeg1_encode_sequence_header(), mpeg4_encode_gop_header(), MPV_encode_init(), select_input_picture(), and xvid_encode_init().
#define CODEC_FLAG_EMU_EDGE 0x4000 |
Don't draw edges.
Definition at line 600 of file avcodec.h.
Referenced by avcodec_default_get_buffer(), chroma_4mv_motion(), chroma_4mv_motion_lowres(), decode_slice_header(), ff_draw_horiz_band(), ff_mspel_motion(), frame_start(), gmc1_motion(), hpel_motion(), input_get_buffer(), input_init(), intra_predict(), mjpeg_decode_scan(), MPV_frame_end(), MPV_motion_internal(), svq3_mc_dir_part(), and vp8_decode_frame().
#define CODEC_FLAG_EXTERN_HUFF 0x1000 |
Use external Huffman table (for MJPEG).
Definition at line 598 of file avcodec.h.
Referenced by ff_mjpeg_decode_init().
#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 |
Place global headers in extradata instead of every keyframe.
Definition at line 608 of file avcodec.h.
Referenced by aac_encode_init(), aacPlus_encode_init(), av_parser_change(), encode_init(), Faac_encode_init(), ffm_read_header(), ffm_write_header(), mpeg4_encode_picture_header(), remove_extradata(), X264_init(), XAVS_init(), and xvid_encode_init().
#define CODEC_FLAG_GMC 0x0020 |
#define CODEC_FLAG_GRAY 0x2000 |
Only decode/encode grayscale.
Definition at line 599 of file avcodec.h.
Referenced by backup_mb_border(), comp_block(), dct_get(), decode_frame(), dnxhd_decode_macroblock(), encode_mb_internal(), ff_mspel_motion(), ff_wmv2_add_mb(), ff_xvmc_decode_mb(), gmc1_motion(), gmc_motion(), hl_decode_mb_internal(), idct_put(), indeo3_decode_frame(), iv_decode_frame(), mc_dir_part(), mpeg_motion_internal(), mpeg_motion_lowres(), MPV_decode_mb_internal(), MPV_motion_internal(), MPV_motion_lowres(), qpel_motion(), render_slice(), svq1_decode_frame(), svq3_mc_dir_part(), tgq_idct_put_mb(), tgq_idct_put_mb_dconly(), tqi_idct_put(), unpack_dct_coeffs(), vc1_decode_b_mb(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_init(), vc1_decode_p_mb(), vc1_interp_mc(), vc1_mc_1mv(), vc1_mc_4mv_chroma(), vc1_smooth_overlap_filter_iblk(), xchg_mb_border(), and xvid_encode_init().
#define CODEC_FLAG_H263P_AIV 0x00000008 |
#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000 |
Definition at line 618 of file avcodec.h.
Referenced by MPV_encode_init().
#define CODEC_FLAG_H263P_UMV 0x02000000 |
#define CODEC_FLAG_INPUT_PRESERVED 0x0100 |
The parent program guarantees that the input for B-frames containing streams is not written to for at least s->max_b_frames+1 frames, if this is not set the input will be copied.
Definition at line 595 of file avcodec.h.
Referenced by estimate_best_b_count(), and load_input_picture().
#define CODEC_FLAG_INTERLACED_DCT 0x00040000 |
Use interlaced DCT.
Definition at line 605 of file avcodec.h.
Referenced by dnxhd_encode_init(), do_video_out(), dv_guess_dct_mode(), encode_mb_internal(), ff_dnxhd_find_cid(), and MPV_encode_init().
#define CODEC_FLAG_INTERLACED_ME 0x20000000 |
interlaced motion estimation
Definition at line 619 of file avcodec.h.
Referenced by check_input_motion(), do_video_out(), encode_init(), encode_picture(), ff_estimate_b_frame_motion(), ff_estimate_p_frame_motion(), libdirac_encode_init(), libschroedinger_encode_init(), MPV_common_init(), and MPV_encode_init().
#define CODEC_FLAG_LOW_DELAY 0x00080000 |
Force low delay.
Definition at line 606 of file avcodec.h.
Referenced by decode_nal_units(), decode_vop_header(), ff_mpeg4_decode_picture_header(), mpeg1_decode_sequence(), mpeg_decode_sequence_extension(), and MPV_encode_init().
#define CODEC_FLAG_MV0 0x0040 |
Always try a MB with MV=<0,0>.
Definition at line 588 of file avcodec.h.
Referenced by epzs_motion_search_internal(), ff_estimate_b_frame_motion(), and ff_estimate_p_frame_motion().
#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 |
Normalize adaptive quantization.
Definition at line 604 of file avcodec.h.
Referenced by adaptive_quantization().
#define CODEC_FLAG_PASS1 0x0200 |
Use internal 2pass ratecontrol in first pass mode.
Definition at line 596 of file avcodec.h.
Referenced by avcodec_string(), encode_422_bitstream(), encode_bgr_bitstream(), encode_frame(), encode_gray_bitstream(), encode_init(), encode_line(), encode_thread(), MPV_encode_picture(), transcode(), vp8_encode(), vp8_init(), write_slice_end(), and xvid_encode_init().
#define CODEC_FLAG_PASS2 0x0400 |
Use internal 2pass ratecontrol in second pass mode.
Definition at line 597 of file avcodec.h.
Referenced by avcodec_string(), encode_frame(), encode_init(), encode_picture(), ff_rate_control_init(), ff_rate_control_uninit(), ff_rate_estimate_qscale(), MPV_encode_init(), select_input_picture(), transcode(), vp8_init(), X264_init(), XAVS_init(), and xvid_encode_init().
#define CODEC_FLAG_PSNR 0x8000 |
error[?] variables will be set during encoding.
Definition at line 601 of file avcodec.h.
Referenced by do_video_stats(), encode_frame(), encode_thread(), estimate_best_b_count(), MPV_decode_mb_internal(), and print_report().
#define CODEC_FLAG_QP_RD 0x08000000 |
Use rate distortion optimization for qp selectioon.
Definition at line 614 of file avcodec.h.
Referenced by encode_mb_internal(), encode_thread(), and MPV_encode_init().
#define CODEC_FLAG_QPEL 0x0010 |
Use qpel MC.
Definition at line 586 of file avcodec.h.
Referenced by ff_init_me(), get_flags(), and xvid_encode_init().
#define CODEC_FLAG_QSCALE 0x0002 |
Use fixed qscale.
Definition at line 584 of file avcodec.h.
Referenced by aac_encode_frame(), config(), encode_frame(), encode_init(), encode_picture(), estimate_best_b_count(), Faac_encode_init(), lame_window_init(), libdirac_encode_init(), libschroedinger_encode_init(), libspeex_encode_init(), MP3lame_encode_init(), oggvorbis_init_encoder(), vorbis_encode_init(), and xvid_encode_init().
#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 |
Will reserve space for SVCD scan offset user data.
Definition at line 620 of file avcodec.h.
Referenced by mpeg1_encode_picture_header().
#define CODEC_FLAG_TRUNCATED 0x00010000 |
Definition at line 602 of file avcodec.h.
Referenced by ff_h263_decode_frame(), get_consumed_bytes(), mpeg_decode_frame(), and validate_thread_parameters().
#define CodecType AVMediaType |
#define FF_ALPHA_TRANSP 0x0001 |
Definition at line 3383 of file avcodec.h.
Referenced by img_get_alpha_info().
#define FF_ASPECT_EXTENDED 15 |
Definition at line 1068 of file avcodec.h.
Referenced by decode_vol_header(), ff_h263_decode_picture_header(), ff_h263_encode_picture_header(), and mpeg4_encode_vol_header().
#define FF_B_TYPE AV_PICTURE_TYPE_B |
Bi-dir predicted.
Definition at line 901 of file avcodec.h.
Referenced by decode_chunks(), ff_h263_decode_frame(), ff_mpeg_update_thread_context(), ff_rv34_decode_frame(), MPV_report_decode_progress(), svq1_decode_frame(), svq3_decode_frame(), and vc1_decode_frame().
#define FF_BUFFER_HINTS_PRESERVE 0x04 |
Definition at line 910 of file avcodec.h.
Referenced by aasc_decode_frame(), bethsoftvid_decode_init(), cdg_init_frame(), cinepak_decode_frame(), cinvideo_decode_frame(), copy_frame(), decode_frame(), flashsv_decode_frame(), flic_decode_frame_15_16BPP(), flic_decode_frame_8BPP(), input_get_buffer(), ir2_decode_frame(), mp_decode_frame(), msrle_decode_frame(), msvideo1_decode_frame(), qtrle_decode_frame(), rpza_decode_frame(), seqvideo_decode_frame(), smc_decode_frame(), truemotion1_decode_frame(), ulti_decode_frame(), and xan_decode_frame().
#define FF_BUFFER_HINTS_READABLE 0x02 |
Definition at line 909 of file avcodec.h.
Referenced by cdg_init_frame(), decode_frame(), and input_get_buffer().
#define FF_BUFFER_HINTS_REUSABLE 0x08 |
Definition at line 911 of file avcodec.h.
Referenced by decode_frame(), input_get_buffer(), ir2_decode_frame(), qtrle_decode_frame(), and smc_decode_frame().
#define FF_BUFFER_HINTS_VALID 0x01 |
Definition at line 908 of file avcodec.h.
Referenced by aasc_decode_frame(), bethsoftvid_decode_init(), cdg_init_frame(), cinepak_decode_frame(), cinvideo_decode_frame(), copy_frame(), decode_frame(), flashsv_decode_frame(), flic_decode_frame_15_16BPP(), flic_decode_frame_8BPP(), input_get_buffer(), ir2_decode_frame(), mp_decode_frame(), msrle_decode_frame(), msvideo1_decode_frame(), qtrle_decode_frame(), rpza_decode_frame(), seqvideo_decode_frame(), smc_decode_frame(), truemotion1_decode_frame(), ulti_decode_frame(), and xan_decode_frame().
#define FF_BUFFER_TYPE_COPY 8 |
Just a (modified) copy of some other buffer, don't deallocate anything.
Definition at line 895 of file avcodec.h.
Referenced by update_frames().
#define FF_BUFFER_TYPE_INTERNAL 1 |
Definition at line 892 of file avcodec.h.
Referenced by avcodec_default_reget_buffer(), avcodec_default_release_buffer(), ff_mpeg_flush(), and select_input_picture().
#define FF_BUFFER_TYPE_SHARED 4 |
Buffer from somewhere else; don't deallocate image (data/base), all other tables are not shared.
Definition at line 894 of file avcodec.h.
Referenced by estimate_best_b_count(), ff_alloc_picture(), free_picture(), mpeg4_encode_mb(), select_input_picture(), and skip_check().
#define FF_BUFFER_TYPE_USER 2 |
direct rendering buffers (image is (de)allocated by user)
Definition at line 893 of file avcodec.h.
Referenced by ff_mpeg_flush(), and select_input_picture().
#define FF_BUG_AC_VLC 0 |
#define FF_BUG_AUTODETECT 1 |
autodetection
Definition at line 1279 of file avcodec.h.
Referenced by decode_nal_units(), decode_slice(), and ff_h263_decode_frame().
#define FF_BUG_DC_CLIP 4096 |
Definition at line 1292 of file avcodec.h.
Referenced by ff_mpeg4_pred_dc().
#define FF_BUG_DIRECT_BLOCKSIZE 512 |
Definition at line 1289 of file avcodec.h.
Referenced by ff_mpeg4_set_direct_mv().
#define FF_BUG_EDGE 1024 |
Definition at line 1290 of file avcodec.h.
Referenced by decode_vop_header().
#define FF_BUG_HPEL_CHROMA 2048 |
Definition at line 1291 of file avcodec.h.
Referenced by mpeg_motion_internal().
#define FF_BUG_MS 8192 |
Work around various bugs in Microsoft's broken decoders.
Definition at line 1293 of file avcodec.h.
Referenced by encode_init(), mpeg4_encode_picture_header(), and mpeg4_encode_vol_header().
#define FF_BUG_NO_PADDING 16 |
Definition at line 1283 of file avcodec.h.
Referenced by decode_slice(), and mpeg4_is_resync().
#define FF_BUG_QPEL_CHROMA 64 |
Definition at line 1286 of file avcodec.h.
Referenced by qpel_motion().
#define FF_BUG_QPEL_CHROMA2 256 |
Definition at line 1288 of file avcodec.h.
Referenced by qpel_motion().
#define FF_BUG_STD_QPEL 128 |
Definition at line 1287 of file avcodec.h.
Referenced by ff_h263_decode_frame().
#define FF_BUG_TRUNCATED 16384 |
Definition at line 1294 of file avcodec.h.
Referenced by decode_nal_units(), and decode_slice().
#define FF_BUG_UMP4 8 |
Definition at line 1282 of file avcodec.h.
Referenced by decode_vop_header().
#define FF_BUG_XVID_ILACE 4 |
Definition at line 1281 of file avcodec.h.
Referenced by mpeg4_decode_mb().
#define FF_CMP_BIT 5 |
Definition at line 1741 of file avcodec.h.
Referenced by ff_set_cmp(), and get_penalty_factor().
#define FF_CMP_CHROMA 256 |
Definition at line 1751 of file avcodec.h.
Referenced by check_bidir_mv(), ff_estimate_p_frame_motion(), ff_init_me(), and h263_mv4_search().
#define FF_CMP_DCT 3 |
Definition at line 1739 of file avcodec.h.
Referenced by ff_set_cmp(), and get_penalty_factor().
#define FF_CMP_DCT264 14 |
Definition at line 1750 of file avcodec.h.
Referenced by ff_set_cmp(), and get_penalty_factor().
#define FF_CMP_DCTMAX 13 |
Definition at line 1749 of file avcodec.h.
Referenced by ff_set_cmp().
#define FF_CMP_NSSE 10 |
Definition at line 1746 of file avcodec.h.
Referenced by ff_set_cmp(), get_penalty_factor(), and sse_mb().
#define FF_CMP_PSNR 4 |
Definition at line 1740 of file avcodec.h.
Referenced by ff_set_cmp(), and get_penalty_factor().
#define FF_CMP_RD 6 |
Definition at line 1742 of file avcodec.h.
Referenced by ff_set_cmp(), get_penalty_factor(), h263_mv4_search(), and interlaced_search().
#define FF_CMP_SAD 0 |
Definition at line 1736 of file avcodec.h.
Referenced by ff_init_me(), ff_set_cmp(), filter(), and get_penalty_factor().
#define FF_CMP_SATD 2 |
Definition at line 1738 of file avcodec.h.
Referenced by ff_set_cmp(), and get_penalty_factor().
#define FF_CMP_SSE 1 |
Definition at line 1737 of file avcodec.h.
Referenced by ff_estimate_p_frame_motion(), ff_set_cmp(), and get_penalty_factor().
#define FF_CMP_VSAD 8 |
Definition at line 1744 of file avcodec.h.
Referenced by ff_set_cmp().
#define FF_CMP_VSSE 9 |
Definition at line 1745 of file avcodec.h.
Referenced by encode_mb_internal(), and ff_set_cmp().
#define FF_CMP_W53 11 |
Definition at line 1747 of file avcodec.h.
Referenced by ff_set_cmp(), get_block_rd(), and get_penalty_factor().
#define FF_CMP_W97 12 |
Definition at line 1748 of file avcodec.h.
Referenced by ff_set_cmp(), get_block_rd(), and get_penalty_factor().
#define FF_CMP_ZERO 7 |
Definition at line 1743 of file avcodec.h.
Referenced by ff_set_cmp().
#define FF_CODER_TYPE_RAW 2 |
Definition at line 1877 of file avcodec.h.
Referenced by encode_frame(), and targa_encode_frame().
#define FF_CODER_TYPE_VLC 0 |
Definition at line 1875 of file avcodec.h.
Referenced by libdirac_encode_init(), and libschroedinger_encode_init().
#define FF_COMPLIANCE_EXPERIMENTAL -2 |
Allow nonstandardized experimental things.
Definition at line 1331 of file avcodec.h.
Referenced by encode_init(), find_codec_or_die(), mp3_header_compress(), and MPV_encode_init().
#define FF_COMPLIANCE_INOFFICIAL -1 |
#define FF_COMPLIANCE_NORMAL 0 |
Definition at line 1326 of file avcodec.h.
Referenced by encode_init(), ff_fix_long_p_mvs(), ff_get_best_fcode(), and mov_get_codec_tag().
#define FF_COMPLIANCE_STRICT 1 |
Strictly conform to all the things in the spec no matter what consequences.
Definition at line 1325 of file avcodec.h.
Referenced by decode_postinit().
#define FF_COMPLIANCE_UNOFFICIAL -1 |
Allow unofficial extensions.
Definition at line 1330 of file avcodec.h.
Referenced by choose_pixel_fmt(), find_frame_rate_index(), libgsm_init(), and MPV_encode_init().
#define FF_COMPLIANCE_VERY_STRICT 2 |
Strictly conform to an older more strict version of the spec or reference software.
Definition at line 1324 of file avcodec.h.
Referenced by mpeg4_encode_picture_header().
#define FF_COMPRESSION_DEFAULT -1 |
Definition at line 2411 of file avcodec.h.
Referenced by alac_encode_init(), encode_frame(), and MP3lame_encode_init().
#define FF_DCT_ALTIVEC 5 |
Definition at line 1501 of file avcodec.h.
Referenced by dsputil_init_ppc(), and MPV_common_init_altivec().
#define FF_DCT_AUTO 0 |
Definition at line 1496 of file avcodec.h.
Referenced by dsputil_init_bfin(), dsputil_init_ppc(), dsputilenc_init_mmx(), MPV_common_init_altivec(), MPV_common_init_mlib(), and MPV_common_init_mmx().
#define FF_DCT_FAAN 6 |
Definition at line 1502 of file avcodec.h.
Referenced by dsputil_init().
#define FF_DCT_FASTINT 1 |
Definition at line 1497 of file avcodec.h.
Referenced by dsputil_init().
#define FF_DCT_MLIB 4 |
Definition at line 1500 of file avcodec.h.
Referenced by MPV_common_init_mlib().
#define FF_DCT_MMX 3 |
Definition at line 1499 of file avcodec.h.
Referenced by dsputilenc_init_mmx(), and MPV_common_init_mmx().
#define FF_DEBUG_BITSTREAM 4 |
Definition at line 1663 of file avcodec.h.
Referenced by decode_init(), and pcm_bluray_decode_frame().
#define FF_DEBUG_BUFFERS 0x00008000 |
Definition at line 1676 of file avcodec.h.
Referenced by avcodec_default_get_buffer(), avcodec_default_release_buffer(), and ff_thread_release_buffer().
#define FF_DEBUG_BUGS 0x00001000 |
Definition at line 1673 of file avcodec.h.
Referenced by decode_unregistered_user_data(), and ff_h263_decode_frame().
#define FF_DEBUG_DCT_COEFF 0x00000040 |
Definition at line 1667 of file avcodec.h.
Referenced by ff_alloc_picture(), MPV_decode_mb_internal(), and transcode().
#define FF_DEBUG_ER 0x00000400 |
Definition at line 1671 of file avcodec.h.
Referenced by ff_er_frame_end().
#define FF_DEBUG_MB_TYPE 8 |
Definition at line 1664 of file avcodec.h.
Referenced by ff_print_debug_info().
#define FF_DEBUG_MMCO 0x00000800 |
Definition at line 1672 of file avcodec.h.
Referenced by ff_h264_execute_ref_pic_marking(), find_short(), print_long_term(), print_short_term(), and remove_short().
#define FF_DEBUG_MV 32 |
Definition at line 1666 of file avcodec.h.
Referenced by ff_alloc_picture().
#define FF_DEBUG_PICT_INFO 1 |
Definition at line 1661 of file avcodec.h.
Referenced by decode_ext_header(), decode_frame(), decode_init(), decode_picture_timing(), decode_slice_header(), decode_vol_header(), decode_vop_header(), ff_flv_decode_picture_header(), ff_h263_show_pict_info(), ff_h264_decode_picture_parameter_set(), ff_h264_decode_seq_parameter_set(), ff_mjpeg_decode_sos(), ff_wmv2_decode_secondary_picture_header(), mjpeg_decode_app(), mjpeg_decode_com(), mpeg1_decode_picture(), mpeg1_decode_sequence(), mpeg_decode_gop(), mpeg_decode_picture_display_extension(), mpeg_decode_sequence_display_extension(), mpeg_decode_sequence_extension(), mpeg_decode_slice(), msmpeg4_decode_picture_header(), pcm_bluray_parse_header(), rv10_decode_init(), rv20_decode_picture_header(), svq3_decode_frame(), and truemotion1_decode_header().
#define FF_DEBUG_PTS 0x00000200 |
Definition at line 1670 of file avcodec.h.
Referenced by decode_vop_header().
#define FF_DEBUG_QP 16 |
Definition at line 1665 of file avcodec.h.
Referenced by ff_mjpeg_decode_frame(), ff_print_debug_info(), and mjpegb_decode_frame().
#define FF_DEBUG_RC 2 |
Definition at line 1662 of file avcodec.h.
Referenced by ff_rate_estimate_qscale(), ff_vbv_update(), and modify_qscale().
#define FF_DEBUG_SKIP 0x00000080 |
Definition at line 1668 of file avcodec.h.
Referenced by ff_print_debug_info().
#define FF_DEBUG_STARTCODE 0x00000100 |
Definition at line 1669 of file avcodec.h.
Referenced by decode_chunks(), decode_nal_units(), ff_mjpeg_decode_frame(), ff_mpeg4_decode_picture_header(), and mjpeg_decode_app().
#define FF_DEBUG_THREADS 0x00010000 |
Definition at line 1677 of file avcodec.h.
Referenced by ff_thread_await_progress(), and ff_thread_report_progress().
#define FF_DEBUG_VIS_MB_TYPE 0x00004000 |
Definition at line 1675 of file avcodec.h.
Referenced by ff_print_debug_info(), MPV_common_init(), and transcode().
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 |
Definition at line 1687 of file avcodec.h.
Referenced by ff_print_debug_info().
#define FF_DEBUG_VIS_MV_B_FOR 0x00000002 |
Definition at line 1686 of file avcodec.h.
Referenced by ff_print_debug_info().
#define FF_DEBUG_VIS_MV_P_FOR 0x00000001 |
Definition at line 1685 of file avcodec.h.
Referenced by ff_print_debug_info().
#define FF_DEBUG_VIS_QP 0x00002000 |
Definition at line 1674 of file avcodec.h.
Referenced by ff_print_debug_info(), MPV_common_init(), and transcode().
#define FF_DEFAULT_QUANT_BIAS 999999 |
Definition at line 1838 of file avcodec.h.
Referenced by dnxhd_encode_init(), and MPV_encode_init().
#define FF_EC_DEBLOCK 2 |
Definition at line 1591 of file avcodec.h.
Referenced by ff_er_frame_end().
#define FF_EC_GUESS_MVS 1 |
Definition at line 1590 of file avcodec.h.
Referenced by guess_mv().
#define FF_ER_AGGRESSIVE 3 |
Definition at line 1349 of file avcodec.h.
Referenced by decode_slice(), huffman_decode(), and mpeg_decode_slice().
#define FF_ER_CAREFUL 1 |
Definition at line 1347 of file avcodec.h.
Referenced by ac3_decode_frame(), decode_frame(), decode_init(), and read_specific_config().
#define FF_ER_COMPLIANT 2 |
Definition at line 1348 of file avcodec.h.
Referenced by h261_decode_gob_header(), h263_decode_block(), huffman_decode(), mpeg1_decode_picture(), mpeg1_decode_sequence(), and mpeg4_decode_block().
#define FF_I_TYPE AV_PICTURE_TYPE_I |
#define FF_IDCT_ALTIVEC 8 |
Definition at line 1553 of file avcodec.h.
Referenced by dsputil_init_ppc(), and MPV_common_init_altivec().
#define FF_IDCT_ARM 7 |
Definition at line 1552 of file avcodec.h.
Referenced by dsputil_init_arm().
#define FF_IDCT_AUTO 0 |
Definition at line 1545 of file avcodec.h.
Referenced by decode_init(), dsputil_init(), dsputil_init_alpha(), dsputil_init_arm(), dsputil_init_bfin(), dsputil_init_mmi(), dsputil_init_mmx(), dsputil_init_ppc(), dsputil_init_sh4(), ff_dsputil_init_armv5te(), ff_dsputil_init_armv6(), ff_dsputil_init_neon(), ff_h263_decode_frame(), ff_vp56_init(), MPV_common_init_altivec(), tgq_decode_init(), tqi_decode_init(), vc1_decode_init(), vcr2_init_sequence(), vp3_decode_init(), and wmv2_decode_init().
#define FF_IDCT_BINK 24 |
Definition at line 1569 of file avcodec.h.
Referenced by dsputil_init().
#define FF_IDCT_CAVS 15 |
Definition at line 1560 of file avcodec.h.
Referenced by dsputil_init_mmx().
#define FF_IDCT_EA 21 |
Definition at line 1566 of file avcodec.h.
Referenced by calc_intra_matrix(), dsputil_init(), tgq_calculate_qtable(), and tqi_calculate_qtable().
#define FF_IDCT_FAAN 20 |
Definition at line 1565 of file avcodec.h.
Referenced by dsputil_init().
#define FF_IDCT_INT 1 |
Definition at line 1546 of file avcodec.h.
Referenced by dsputil_init().
#define FF_IDCT_LIBMPEG2MMX 4 |
Definition at line 1549 of file avcodec.h.
Referenced by dsputil_init_mmx().
#define FF_IDCT_MLIB 6 |
Definition at line 1551 of file avcodec.h.
Referenced by MPV_common_init_mlib().
#define FF_IDCT_PS2 5 |
Definition at line 1550 of file avcodec.h.
Referenced by dsputil_init_mmi().
#define FF_IDCT_SH4 9 |
Definition at line 1554 of file avcodec.h.
Referenced by dsputil_init_sh4().
#define FF_IDCT_SIMPLEALPHA 23 |
Definition at line 1568 of file avcodec.h.
Referenced by dsputil_init_alpha().
#define FF_IDCT_SIMPLEARM 10 |
Definition at line 1555 of file avcodec.h.
Referenced by dsputil_init_arm().
#define FF_IDCT_SIMPLEARMV5TE 16 |
Definition at line 1561 of file avcodec.h.
Referenced by ff_dsputil_init_armv5te().
#define FF_IDCT_SIMPLEARMV6 17 |
Definition at line 1562 of file avcodec.h.
Referenced by ff_dsputil_init_armv6().
#define FF_IDCT_SIMPLEMMX 3 |
Definition at line 1548 of file avcodec.h.
Referenced by dsputil_init_mmx().
#define FF_IDCT_SIMPLENEON 22 |
Definition at line 1567 of file avcodec.h.
Referenced by ff_dsputil_init_neon().
#define FF_IDCT_SIMPLEVIS 18 |
Definition at line 1563 of file avcodec.h.
Referenced by dsputil_init_vis().
#define FF_IDCT_VP3 12 |
Definition at line 1557 of file avcodec.h.
Referenced by dsputil_init(), dsputil_init_bfin(), dsputil_init_mmx(), dsputil_init_ppc(), ff_dsputil_init_neon(), and render_slice().
#define FF_IDCT_WMV2 19 |
Definition at line 1564 of file avcodec.h.
Referenced by dsputil_init().
#define FF_IDCT_XVIDMMX 14 |
Definition at line 1559 of file avcodec.h.
Referenced by dsputil_init_mmx().
#define FF_INPUT_BUFFER_PADDING_SIZE 8 |
Required number of additionally allocated bytes at the end of the input bitstream for decoding.
This is mainly needed because some optimized bitstream readers read 32 or 64 bit at once and could read over the end.
Note: If the first 23 bits of the additional bytes are not 0, then damaged MPEG bitstreams could cause overread and segfault.
Definition at line 454 of file avcodec.h.
Referenced by a64multi_init_encoder(), aac_adtstoasc_filter(), aac_encode_init(), aacPlus_encode_init(), aiff_read_header(), apc_read_header(), asf_read_stream_properties(), atrac3_decode_init(), av_dup_packet(), av_grow_packet(), av_new_packet(), av_parser_change(), av_shrink_packet(), avcodec_copy_context(), avi_read_header(), avisynth_read_header(), celt_header(), cook_decode_init(), decode_frame(), decode_i_frame(), decode_init(), decode_p_frame(), decode_stream_header(), dshow_add_device(), dump_extradata(), extract_header(), Faac_encode_init(), ff_asf_parse_packet(), ff_combine_frame(), ff_get_wav_header(), ff_h263_decode_frame(), ff_h264_decode_nal(), ff_mjpeg_find_marker(), ff_mp4_read_dec_config_descr(), ff_mpeg_update_thread_context(), ff_parse_mpeg2_descriptor(), fixup_vorbis_headers(), flac_header(), flac_read_header(), flic_decode_frame_8BPP(), flv_get_extradata(), h264_mp4toannexb_filter(), h264_new_context(), iff_read_header(), imx_dump_header(), latm_decode_audio_specific_config(), matroska_read_header(), mimic_decode_frame(), mjpega_dump_header(), mov2textsub(), mov_read_extradata(), mov_read_glbl(), mov_read_smi(), mov_read_strf(), mov_read_stsz(), mov_read_wave(), mp3_header_compress(), mp3_header_decompress(), mp_decode_frame(), mpc7_decode_frame(), mpc8_parse_seektable(), mpc8_read_header(), mpc_read_header(), mpegts_push_data(), mxf_read_generic_descriptor(), mxg_update_cache(), new_pes_packet(), noise(), ogg_new_buf(), ogg_new_stream(), ogg_read_page(), ogg_save(), oggvorbis_encode_init(), oma_read_header(), parse_fmtp_config(), qdm2_parse_config(), qt_rtp_parse_packet(), rdt_parse_b64buf(), read_header(), read_kuki_chunk(), rl2_read_header(), rm_read_audio_stream_info(), rm_read_extradata(), sdp_parse_fmtp_config_h264(), spdif_write_packet(), speex_header(), submit_packet(), svq3_decode_frame(), svq3_parse_packet(), text2movsub(), theora_header(), tiff_unpack_strip(), tqi_decode_frame(), transcode(), tta_read_header(), vc1_decode_frame(), vc1_decode_init(), vc1_extract_headers(), vfw_read_header(), video_decode_example(), vmd_read_header(), wsvqa_read_header(), wv_get_value_float(), xwma_read_header(), and yop_read_header().
#define FF_LEVEL_UNKNOWN -99 |
Definition at line 2177 of file avcodec.h.
Referenced by encode_init(), and mpeg4_encode_visual_object_header().
#define FF_LOSS_CHROMA 0x0020 |
#define FF_LOSS_COLORQUANT 0x0010 |
loss due to color quantization
Definition at line 3327 of file avcodec.h.
Referenced by avcodec_find_best_pix_fmt().
#define FF_LOSS_COLORSPACE 0x0004 |
loss due to color space conversion
Definition at line 3325 of file avcodec.h.
Referenced by avcodec_find_best_pix_fmt().
#define FF_LOSS_DEPTH 0x0002 |
loss due to color depth change
Definition at line 3324 of file avcodec.h.
Referenced by avcodec_find_best_pix_fmt().
#define FF_LOSS_RESOLUTION 0x0001 |
#define FF_MAX_B_FRAMES 16 |
Definition at line 577 of file avcodec.h.
Referenced by estimate_best_b_count().
#define FF_MB_DECISION_BITS 1 |
chooses the one which needs the fewest bits
Definition at line 1926 of file avcodec.h.
Referenced by encode_thread().
#define FF_MB_DECISION_RD 2 |
rate distortion
Definition at line 1927 of file avcodec.h.
Referenced by dnxhd_calc_bits_thread(), dnxhd_encode_picture(), dnxhd_init_rc(), encode_mb_hq(), MPV_decode_mb_internal(), and MPV_encode_init().
#define FF_MB_DECISION_SIMPLE 0 |
uses mb_cmp
Definition at line 1925 of file avcodec.h.
Referenced by clip_coeffs(), ff_estimate_b_frame_motion(), ff_estimate_p_frame_motion(), and MPV_encode_init().
#define FF_MIN_BUFFER_SIZE 16384 |
minimum encoding buffer size Used to avoid some checks during header writing.
Definition at line 460 of file avcodec.h.
Referenced by avcodec_decode_audio3(), avcodec_encode_audio(), and avcodec_encode_video().
#define FF_PROFILE_AAC_LOW 1 |
Definition at line 2132 of file avcodec.h.
Referenced by aac_encode_init(), aacPlus_encode_init(), and Faac_encode_init().
#define FF_PROFILE_AAC_LTP 3 |
Definition at line 2134 of file avcodec.h.
Referenced by Faac_encode_init().
#define FF_PROFILE_AAC_MAIN 0 |
Definition at line 2131 of file avcodec.h.
Referenced by Faac_encode_init().
#define FF_PROFILE_AAC_SSR 2 |
Definition at line 2133 of file avcodec.h.
Referenced by Faac_encode_init().
#define FF_PROFILE_H264_BASELINE 66 |
Definition at line 2152 of file avcodec.h.
Referenced by ff_h264_get_profile().
#define FF_PROFILE_H264_CONSTRAINED (1<<9) |
Definition at line 2149 of file avcodec.h.
Referenced by ff_h264_get_profile().
#define FF_PROFILE_H264_CONSTRAINED_BASELINE (66|FF_PROFILE_H264_CONSTRAINED) |
#define FF_PROFILE_H264_HIGH_10 110 |
Definition at line 2157 of file avcodec.h.
Referenced by ff_h264_get_profile().
#define FF_PROFILE_H264_HIGH_10_INTRA (110|FF_PROFILE_H264_INTRA) |
#define FF_PROFILE_H264_HIGH_422 122 |
Definition at line 2159 of file avcodec.h.
Referenced by ff_h264_get_profile().
#define FF_PROFILE_H264_HIGH_422_INTRA (122|FF_PROFILE_H264_INTRA) |
#define FF_PROFILE_H264_HIGH_444_INTRA (244|FF_PROFILE_H264_INTRA) |
#define FF_PROFILE_H264_HIGH_444_PREDICTIVE 244 |
Definition at line 2162 of file avcodec.h.
Referenced by ff_h264_get_profile().
#define FF_PROFILE_H264_INTRA (1<<11) |
Definition at line 2150 of file avcodec.h.
Referenced by ff_h264_get_profile().
#define FF_PROFILE_UNKNOWN -99 |
Definition at line 2128 of file avcodec.h.
Referenced by aac_encode_init(), aacPlus_encode_init(), av_get_profile_name(), encode_init(), Faac_encode_init(), mpeg4_encode_visual_object_header(), and vp8_init().
#define FF_RC_STRATEGY_XVID 1 |
Definition at line 1196 of file avcodec.h.
Referenced by ff_rate_control_init(), ff_rate_control_uninit(), and ff_rate_estimate_qscale().
#define FF_SP_TYPE AV_PICTURE_TYPE_SP |
#define FF_THREAD_FRAME 1 |
Definition at line 2750 of file avcodec.h.
Referenced by avcodec_decode_video2(), avcodec_default_get_buffer(), avcodec_flush_buffers(), avcodec_open2(), await_reference_mb_row(), decode_slice_header(), ff_h263_decode_frame(), ff_thread_finish_setup(), ff_thread_free(), ff_thread_get_buffer(), ff_thread_init(), ff_thread_release_buffer(), field_end(), hl_motion(), mimic_decode_frame(), mpeg_field_start(), MPV_common_end(), MPV_decode_mb_internal(), rv34_decode_slice(), slice_end(), validate_thread_parameters(), and vp3_draw_horiz_band().
#define FF_THREAD_SLICE 2 |
Definition at line 2751 of file avcodec.h.
Referenced by avcodec_thread_execute(), decode_chunks(), decode_slice_header(), ff_thread_init(), mpeg_mc_decode_init(), MPV_common_end(), MPV_common_init(), and validate_thread_parameters().
#define MB_TYPE_16x16 0x0008 |
Definition at line 722 of file avcodec.h.
Referenced by decode_mb_skip(), ff_er_frame_end(), ff_h263_decode_mb(), ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), ff_mpeg4_set_direct_mv(), fill_decode_caches(), filter_mb_dir(), h261_decode_mb(), h261_decode_mb_skipped(), mpeg4_decode_mb(), mpeg4_decode_partition_a(), mpeg_decode_mb(), msmpeg4v34_decode_mb(), parse_mb_skip(), pred_spatial_direct_motion(), pred_temp_direct_motion(), and preview_obmc().
#define MB_TYPE_16x8 0x0010 |
Definition at line 723 of file avcodec.h.
Referenced by ff_mpeg4_set_direct_mv(), fill_decode_caches(), get_dct8x8_allowed(), mpeg4_decode_mb(), mpeg_decode_mb(), pred_spatial_direct_motion(), and pred_temp_direct_motion().
#define MB_TYPE_8x16 0x0020 |
Definition at line 724 of file avcodec.h.
Referenced by filter_mb_dir(), get_dct8x8_allowed(), pred_spatial_direct_motion(), and pred_temp_direct_motion().
#define MB_TYPE_8x8 0x0040 |
Definition at line 725 of file avcodec.h.
Referenced by ff_h263_decode_mb(), ff_mpeg4_set_direct_mv(), fill_decode_caches(), get_dct8x8_allowed(), mpeg4_decode_mb(), mpeg4_decode_partition_a(), pred_spatial_direct_motion(), pred_temp_direct_motion(), and preview_obmc().
#define MB_TYPE_CBP 0x00020000 |
Definition at line 739 of file avcodec.h.
Referenced by mpeg_decode_mb().
#define MB_TYPE_DIRECT2 0x0100 |
Definition at line 727 of file avcodec.h.
Referenced by decode_cabac_mb_ref(), decode_mb_skip(), ff_mpeg4_set_direct_mv(), fill_decode_caches(), mpeg4_decode_mb(), pred_spatial_direct_motion(), and pred_temp_direct_motion().
#define MB_TYPE_GMC 0x0400 |
Definition at line 729 of file avcodec.h.
Referenced by mpeg4_decode_mb(), and mpeg4_decode_partition_a().
#define MB_TYPE_INTERLACED 0x0080 |
Definition at line 726 of file avcodec.h.
Referenced by mpeg4_decode_mb().
#define MB_TYPE_INTRA16x16 0x0002 |
Definition at line 720 of file avcodec.h.
Referenced by decode_cabac_intra_mb_type(), and rv34_decode_mb_header().
#define MB_TYPE_INTRA_PCM 0x0004 |
Definition at line 721 of file avcodec.h.
Referenced by decode_cabac_intra_mb_type().
#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0) |
Definition at line 735 of file avcodec.h.
Referenced by ff_h263_decode_mb(), ff_h263_update_motion_val(), h261_decode_mb_skipped(), mpeg4_decode_mb(), mpeg_decode_mb(), msmpeg4v34_decode_mb(), parse_mb_skip(), and pred_spatial_direct_motion().
#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1) |
Definition at line 737 of file avcodec.h.
Referenced by decode_mb_skip(), ff_mpeg4_set_direct_mv(), mpeg_decode_mb(), and pred_temp_direct_motion().
#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1) |
Definition at line 736 of file avcodec.h.
Referenced by rv34_pred_mv_b().
#define MB_TYPE_P0L0 0x1000 |
Definition at line 731 of file avcodec.h.
Referenced by decode_mb_skip(), and pred_temp_direct_motion().
#define MB_TYPE_P0L1 0x4000 |
Definition at line 733 of file avcodec.h.
Referenced by pred_temp_direct_motion().
#define MB_TYPE_P1L0 0x2000 |
Definition at line 732 of file avcodec.h.
Referenced by decode_mb_skip(), and pred_spatial_direct_motion().
#define MB_TYPE_QUANT 0x00010000 |
Definition at line 738 of file avcodec.h.
Referenced by mpeg_decode_mb().
#define MB_TYPE_SKIP 0x0800 |
Definition at line 730 of file avcodec.h.
Referenced by ff_h263_decode_mb(), fill_decode_caches(), h261_decode_mb_skipped(), mpeg4_decode_mb(), mpeg4_decode_partition_a(), mpeg_decode_mb(), msmpeg4v34_decode_mb(), parse_mb_skip(), and preview_obmc().
#define PARSER_FLAG_COMPLETE_FRAMES 0x0001 |
Definition at line 3962 of file avcodec.h.
Referenced by cavsvideo_parse(), dca_parse(), dirac_parse(), dnxhd_parse(), flac_parse(), h261_parse(), h263_parse(), h264_parse(), jpeg_parse(), latm_parse(), mpeg4video_parse(), mpegvideo_parse(), and vc1_parse().
#define PARSER_FLAG_FETCHED_OFFSET 0x0004 |
Set if the parser has a valid file offset.
Definition at line 3965 of file avcodec.h.
Referenced by av_parser_parse2().
#define PARSER_FLAG_ONCE 0x0002 |
Definition at line 3963 of file avcodec.h.
Referenced by h264_parse().
#define SAMPLE_FMT_FLT AV_SAMPLE_FMT_FLT |
Definition at line 391 of file avcodec.h.
Referenced by libspeex_encode_frame(), and libspeex_encode_init().
#define SAMPLE_FMT_S16 AV_SAMPLE_FMT_S16 |
Definition at line 389 of file avcodec.h.
Referenced by libspeex_encode_init().
#define SampleFormat AVSampleFormat |
#define SLICE_FLAG_ALLOW_FIELD 0x0002 |
allow draw_horiz_band() with field slices (MPEG2 field pics)
Definition at line 1909 of file avcodec.h.
Referenced by ff_draw_horiz_band(), and mpeg_mc_decode_init().
#define SLICE_FLAG_ALLOW_PLANE 0x0004 |
#define SLICE_FLAG_CODED_ORDER 0x0001 |
draw_horiz_band() is called in coded order instead of display
Definition at line 1908 of file avcodec.h.
Referenced by ff_draw_horiz_band(), and mpeg_mc_decode_init().
#define X264_PART_B8X8 0x100 |
Definition at line 2368 of file avcodec.h.
Referenced by X264_init().
#define X264_PART_I4X4 0x001 |
Definition at line 2364 of file avcodec.h.
Referenced by X264_init().
#define X264_PART_I8X8 0x002 |
Definition at line 2365 of file avcodec.h.
Referenced by X264_init().
#define X264_PART_P4X4 0x020 |
Definition at line 2367 of file avcodec.h.
Referenced by X264_init().
#define X264_PART_P8X8 0x010 |
Definition at line 2366 of file avcodec.h.
Referenced by X264_init().
typedef struct AVPaletteControl attribute_deprecated |
typedef struct AVBitStreamFilter AVBitStreamFilter |
typedef struct AVBitStreamFilterContext AVBitStreamFilterContext |
typedef struct AVCodecContext AVCodecContext |
main external API structure.
New fields can be added to the end with minor version bumps. Removal, reordering and changes to existing fields require a major version bump. sizeof(AVCodecContext) must not be used outside libav*.
typedef struct AVCodecParser AVCodecParser |
typedef struct AVCodecParserContext AVCodecParserContext |
Audio Video Frame.
New fields can be added to the end of FF_COMMON_FRAME with minor version bumps. Removal, reordering and changes to existing fields require a major version bump. No fields should be added into AVFrame before or after FF_COMMON_FRAME! sizeof(AVFrame) must not be used outside libav*.
Pan Scan area.
This specifies the area which should be displayed. Note there may be multiple such areas for one frame.
four components are given, that's all.
the last component is alpha
typedef struct AVSubtitle AVSubtitle |
typedef struct AVSubtitleRect AVSubtitleRect |
typedef struct RcOverride RcOverride |
typedef struct ReSampleContext ReSampleContext |
enum AVAudioServiceType |
enum AVChromaLocation |
X X 3 4 X X are luma samples, 1 2 1-6 are possible chroma positions X X 5 6 X 0 is undefined/unknown position.
enum AVColorPrimaries |
enum AVColorRange |
enum AVColorSpace |
enum AVDiscard |
enum AVLockOp |
Lock operation used by lockmgr.
enum AVLPCType |
LPC analysis type.
enum AVSubtitleType |
enum CodecID |
Identify the syntax and semantics of the bitstream.
The principle is roughly: Two decoders with the same ID can decode the same streams. Two encoders with the same ID can encode compatible streams. There may be slight deviations from the principle due to implementation details.
If you add a codec ID to this list, add it so that 1. no value of a existing codec ID changes (that would break ABI), 2. it is as close as possible to similar codecs.
enum Motion_Est_ID |
motion estimation type.
int audio_resample | ( | ReSampleContext * | s, | |
short * | output, | |||
short * | input, | |||
int | nb_samples | |||
) |
Definition at line 291 of file resample.c.
Referenced by do_audio_out().
void audio_resample_close | ( | ReSampleContext * | s | ) |
Free resample context.
s | a non-NULL pointer to a resample context previously created with av_audio_resample_init() |
Definition at line 427 of file resample.c.
Referenced by do_audio_out().
attribute_deprecated ReSampleContext* audio_resample_init | ( | int | output_channels, | |
int | input_channels, | |||
int | output_rate, | |||
int | input_rate | |||
) |
Definition at line 279 of file resample.c.
ReSampleContext* av_audio_resample_init | ( | int | output_channels, | |
int | input_channels, | |||
int | output_rate, | |||
int | input_rate, | |||
enum AVSampleFormat | sample_fmt_out, | |||
enum AVSampleFormat | sample_fmt_in, | |||
int | filter_length, | |||
int | log2_phase_count, | |||
int | linear, | |||
double | cutoff | |||
) |
Initialize audio resampling context.
output_channels | number of output channels | |
input_channels | number of input channels | |
output_rate | output sample rate | |
input_rate | input sample rate | |
sample_fmt_out | requested output sample format | |
sample_fmt_in | input sample format | |
filter_length | length of each FIR filter in the filterbank relative to the cutoff frequency | |
log2_phase_count | log2 of the number of entries in the polyphase filterbank | |
linear | if 1 then the used FIR filter will be linearly interpolated between the 2 closest, if 0 the closest will be used | |
cutoff | cutoff frequency, 1.0 corresponds to half the output sampling rate |
Definition at line 198 of file resample.c.
Referenced by audio_resample_init(), and do_audio_out().
void av_bitstream_filter_close | ( | AVBitStreamFilterContext * | bsf | ) |
Definition at line 50 of file bitstream_filter.c.
Referenced by extradata2psets(), and uninit().
int av_bitstream_filter_filter | ( | AVBitStreamFilterContext * | bsfc, | |
AVCodecContext * | avctx, | |||
const char * | args, | |||
uint8_t ** | poutbuf, | |||
int * | poutbuf_size, | |||
const uint8_t * | buf, | |||
int | buf_size, | |||
int | keyframe | |||
) |
Definition at line 58 of file bitstream_filter.c.
Referenced by decode(), extradata2psets(), init(), and write_frame().
AVBitStreamFilterContext* av_bitstream_filter_init | ( | const char * | name | ) |
Definition at line 35 of file bitstream_filter.c.
Referenced by extradata2psets(), init(), and opt_bsf().
AVBitStreamFilter* av_bitstream_filter_next | ( | AVBitStreamFilter * | f | ) |
Definition at line 25 of file bitstream_filter.c.
Referenced by opt_bsfs().
If c is NULL, returns the first registered codec, if c is non-NULL, returns the next registered codec after c, or NULL if c is the last one.
Definition at line 83 of file utils.c.
Referenced by opt_codecs(), opt_default(), opt_find(), and opt_help().
void av_destruct_packet | ( | AVPacket * | pkt | ) |
Default packet destructor.
Definition at line 31 of file avpacket.c.
Referenced by a64_write_trailer(), dshow_read_close(), matroska_merge_packets(), mkv_write_trailer(), and vfw_read_close().
attribute_deprecated void av_destruct_packet_nofree | ( | AVPacket * | pkt | ) |
Definition at line 26 of file avpacket.c.
Referenced by av_dup_packet().
int av_dup_packet | ( | AVPacket * | pkt | ) |
Definition at line 92 of file avpacket.c.
Referenced by packet_queue_put().
void av_fast_malloc | ( | void * | ptr, | |
unsigned int * | size, | |||
FF_INTERNALC_MEM_TYPE | min_size | |||
) |
Allocate a buffer, reusing the given one if large enough.
Contrary to av_fast_realloc the current buffer contents might not be preserved and on error the old buffer is freed, thus no special handling to avoid memleaks is necessary.
ptr | pointer to pointer to already allocated buffer, overwritten with pointer to new buffer | |
size | size of the buffer *ptr points to | |
min_size | minimum size of *ptr buffer after returning, *ptr will be NULL and *size 0 if an error occurred. |
Definition at line 68 of file utils.c.
Referenced by codec_reinit(), decode_frame(), decode_i_frame(), decode_p_frame(), do_audio_out(), ff_h263_decode_frame(), ff_h264_decode_nal(), ff_id3v2_parse(), ff_mpeg_update_thread_context(), ljpeg_decode_rgb_scan(), mimic_decode_frame(), mp_decode_frame(), parse_picture_segment(), pmp_packet(), spdif_header_dts4(), spdif_write_packet(), submit_packet(), svq3_decode_frame(), tqi_decode_frame(), truemotion1_decode_header(), and truemotion1_decode_init().
void* av_fast_realloc | ( | void * | ptr, | |
unsigned int * | size, | |||
FF_INTERNALC_MEM_TYPE | min_size | |||
) |
Reallocate the given block if it is not large enough, otherwise do nothing.
Definition at line 52 of file utils.c.
Referenced by avcodec_default_get_buffer(), commit_slices(), decode_frame(), dirac_combine_frame(), ff_combine_frame(), ff_mms_asf_header_parser(), ff_vdpau_add_data_chunk(), flac_fifo_read_wrap(), get_stats(), mkv_copy_packet(), mxg_update_cache(), read_frame(), read_header(), shorten_decode_frame(), and spdif_header_eac3().
void av_free_packet | ( | AVPacket * | pkt | ) |
Free a packet.
pkt | packet to free |
Definition at line 111 of file avpacket.c.
Referenced by amr_read_packet(), applehttp_read_seek(), asf_read_pts(), asf_reset_header(), asfrtp_parse_packet(), audio_decode_frame(), audio_read_packet(), avi_read_close(), avs_read_video_packet(), cin_read_packet(), dfa_read_packet(), dxa_read_packet(), extract_mpeg4_header(), ff_asf_parse_packet(), ff_free_parser_state(), ff_raw_read_partial_packet(), ff_rm_free_rmstream(), ffm_read_packet(), flic_read_packet(), fourxm_read_packet(), free_packet_list(), free_pkt_fifo(), free_variant_list(), http_prepare_data(), ingenient_read_packet(), input_request_frame(), load_ipmovie_packet(), lxf_read_packet(), main(), matroska_clear_queue(), mmf_read_packet(), movie_get_frame(), mpc_read_packet(), mpc_read_seek(), mpegts_raw_read_packet(), mxf_interleave_get_packet(), nc_read_packet(), nsv_read_close(), nuv_packet(), output_packet(), packet_queue_flush(), qt_rtp_parse_packet(), read_packet(), read_thread(), rl2_read_packet(), rm_assemble_video_frame(), rm_read_packet(), rpl_read_packet(), sap_fetch_packet(), search_hi_lo_keyframes(), seek_subtitle(), spdif_read_packet(), str_read_close(), str_read_packet(), subtitle_thread(), thp_read_packet(), vid_read_packet(), video_thread(), vmd_read_packet(), vqf_read_packet(), wc3_read_close(), write_frame(), wsvqa_read_packet(), wv_read_packet(), wv_read_seek(), xiph_handle_packet(), yop_read_close(), yop_read_packet(), and yop_read_seek().
int av_get_bits_per_sample | ( | enum CodecID | codec_id | ) |
Return codec bits per sample.
[in] | codec_id | the codec |
Definition at line 1261 of file utils.c.
Referenced by aiff_write_header(), au_read_header(), au_read_packet(), do_audio_out(), ff_alsa_open(), ff_audio_interleave_init(), ff_mov_read_stsd_entries(), ff_put_wav_header(), ff_raw_read_header(), get_aiff_header(), get_bit_rate(), gxf_packet(), mkv_write_tracks(), mov_get_codec_tag(), mov_write_audio_tag(), mov_write_header(), mxf_write_generic_sound_common(), pcm_decode_frame(), pcm_decode_init(), pcm_encode_frame(), pcm_encode_init(), pcm_read_seek(), raw_read_packet(), rso_read_header(), rso_read_packet(), show_stream(), voc_get_packet(), and wav_read_header().
attribute_deprecated int av_get_bits_per_sample_format | ( | enum AVSampleFormat | sample_fmt | ) |
size_t av_get_codec_tag_string | ( | char * | buf, | |
size_t | buf_size, | |||
unsigned int | codec_tag | |||
) |
Put a string representing the codec tag codec_tag in buf.
buf_size | size in bytes of buf |
Definition at line 1057 of file utils.c.
Referenced by avcodec_string(), and show_stream().
attribute_deprecated char av_get_pict_type_char | ( | int | pict_type | ) |
Return a single letter to describe the given picture type pict_type.
[in] | pict_type | the picture type |
const char* av_get_profile_name | ( | const AVCodec * | codec, | |
int | profile | |||
) |
Return a name for the specified profile, if available.
codec | the codec that is searched for the given profile | |
profile | the profile value for which a name is requested |
Definition at line 1188 of file utils.c.
Referenced by avcodec_string().
int av_grow_packet | ( | AVPacket * | pkt, | |
int | grow_by | |||
) |
Increase packet size, correctly zeroing padding.
pkt | packet | |
grow_by | number of bytes by which to increase the size of the packet |
Definition at line 75 of file avpacket.c.
If hwaccel is NULL, returns the first registered hardware accelerator, if hwaccel is non-NULL, returns the next registered hardware accelerator after hwaccel, or NULL if hwaccel is the last one.
Definition at line 1389 of file utils.c.
Referenced by ff_find_hwaccel().
void av_init_packet | ( | AVPacket * | pkt | ) |
Initialize optional fields of a packet with default values.
pkt | packet |
Definition at line 37 of file avpacket.c.
Referenced by audio_decode_example(), av_new_packet(), avcodec_decode_audio2(), avcodec_decode_subtitle(), avcodec_decode_video(), avi_write_packet(), dc1394_read_header(), do_audio_out(), do_subtitle_out(), do_video_out(), dv_extract_audio_info(), dv_produce_packet(), ff_mov_add_hinted_packet(), ff_store_parser_state(), main(), mkv_write_header(), mxf_interleave_get_packet(), new_pes_packet(), output_packet(), prepare_packet(), qt_rtp_parse_packet(), read_thread(), reset_packet(), show_packets(), sp5x_decode_frame(), svq3_parse_packet(), v4l2_read_packet(), video_decode_example(), wc3_read_header(), write_audio_frame(), write_video_frame(), x11grab_read_packet(), and xiph_handle_packet().
int av_lockmgr_register | ( | int(*)(void **mutex, enum AVLockOp op) | cb | ) |
Register a user provided lock manager supporting the operations specified by AVLockOp.
mutex points to a (void *) where the lockmgr should store/get a pointer to a user allocated mutex. It's NULL upon AV_LOCK_CREATE and != NULL for all other ops.
cb | User defined callback. Note: FFmpeg may invoke calls to this callback during the call to av_lockmgr_register(). Thus, the application must be prepared to handle that. If cb is set to NULL the lockmgr will be unregistered. Also note that during unregistration the previously registered lockmgr callback may also be invoked. |
void av_log_ask_for_sample | ( | void * | avc, | |
const char * | msg, | |||
... | ||||
) |
Log a generic warning message asking for a sample.
This function is intended to be used internally by FFmpeg (libavcodec, libavformat, etc.) only, and would normally not be used by applications.
[in] | avc | a pointer to an arbitrary struct of which the first field is a pointer to an AVClass struct |
[in] | msg | string containing an optional message, or NULL if no message |
Definition at line 1363 of file utils.c.
Referenced by au_read_header(), av_log_missing_feature(), cinaudio_decode_init(), cook_decode_init(), dca_exss_parse_header(), decode_bytes(), decode_channel_transform(), decode_frame(), decode_init(), decode_scalefactors(), decode_subframe(), determine_bitrate(), execute_code(), ff_mov_read_chan(), ff_parse_mpeg2_descriptor(), imc_decode_init(), oma_read_header(), ptx_decode_frame(), read_header(), read_major_sync(), roq_decode_init(), rso_read_header(), save_bits(), spdif_header_dts(), spdif_header_truehd(), spdif_read_packet(), truemotion1_decode_header(), truespeech_decode_init(), tta_decode_init(), vc1_parse_sprites(), vc1_sprite_parse_transform(), ws_snd_decode_init(), and xwma_read_header().
void av_log_missing_feature | ( | void * | avc, | |
const char * | feature, | |||
int | want_sample | |||
) |
Logs a generic warning message about a missing feature.
This function is intended to be used internally by FFmpeg (libavcodec, libavformat, etc.) only, and would normally not be used by applications.
[in] | avc | a pointer to an arbitrary struct of which the first field is a pointer to an AVClass struct |
[in] | feature | string containing the name of the missing feature |
[in] | want_sample | indicates if samples are wanted which exhibit this feature. If want_sample is non-zero, additional verbage will be added to the log message which tells the user how to report samples to the development mailing list. |
Definition at line 1353 of file utils.c.
Referenced by aac_adtstoasc_filter(), amrnb_decode_frame(), amrwb_decode_frame(), avcodec_default_get_buffer(), decode_audio_block(), decode_frame_header(), decode_ga_specific_config(), decode_ics(), decode_seq_header(), decode_slice_header(), decode_subframe(), ff_eac3_parse_header(), ff_h263_decode_frame(), latm_decode_audio_specific_config(), mpc8_decode_init(), parse_adts_frame_header(), parse_fmtp(), qt_rtp_parse_packet(), read_sbr_extension(), read_stream_mux_config(), rv34_decode_slice(), spdif_get_offset_and_codec(), spdif_read_packet(), synth_superframe(), vc1_parse_frame_header_adv(), and vp6_parse_header().
int av_new_packet | ( | AVPacket * | pkt, | |
int | size | |||
) |
Allocate the payload of a packet and initialize its fields with default values.
pkt | packet | |
size | wanted payload size |
Definition at line 49 of file avpacket.c.
Referenced by a64_write_packet(), aac_parse_packet(), amr_handle_packet(), amr_read_packet(), ape_read_packet(), audio_read_packet(), av_grow_packet(), avisynth_read_packet(), avs_read_video_packet(), callback(), cin_read_packet(), decode_frame(), dxa_read_packet(), fbdev_read_packet(), ff_asf_parse_packet(), ff_interleave_new_audio_packet(), ff_raw_read_partial_packet(), ff_rm_retrieve_cache(), ffm_read_packet(), film_read_packet(), flic_read_packet(), fourxm_read_packet(), grab_read_packet(), h263_handle_packet(), h264_handle_packet(), iff_read_packet(), ingenient_read_packet(), latm_parse_packet(), load_ipmovie_packet(), lxf_read_packet(), matroska_parse_block(), microdvd_read_packet(), mmf_read_packet(), mpc_read_packet(), mpegts_raw_read_packet(), nut_read_packet(), nuv_packet(), ogg_read_packet(), qdm2_restore_block(), qt_rtp_parse_packet(), read_frame(), read_packet(), return_stored_frame(), rm_assemble_video_frame(), rm_read_audio_stream_info(), roq_read_packet(), rtp_parse_packet_internal(), seq_read_packet(), siff_read_packet(), smacker_read_packet(), spdif_read_packet(), srt_read_packet(), store_packet(), str_read_packet(), supply_new_packets(), swf_read_packet(), v4l2_read_packet(), videostream_cb(), vmd_read_packet(), vqf_read_packet(), wsvqa_read_packet(), wv_read_packet(), xiph_handle_packet(), and yop_read_packet().
attribute_deprecated int av_parse_video_frame_rate | ( | AVRational * | frame_rate, | |
const char * | str | |||
) |
Parse str and store the detected values in *frame_rate.
attribute_deprecated int av_parse_video_frame_size | ( | int * | width_ptr, | |
int * | height_ptr, | |||
const char * | str | |||
) |
Parse str and put in width_ptr and height_ptr the detected values.
int av_parser_change | ( | AVCodecParserContext * | s, | |
AVCodecContext * | avctx, | |||
uint8_t ** | poutbuf, | |||
int * | poutbuf_size, | |||
const uint8_t * | buf, | |||
int | buf_size, | |||
int | keyframe | |||
) |
Definition at line 208 of file parser.c.
Referenced by output_packet().
void av_parser_close | ( | AVCodecParserContext * | s | ) |
Definition at line 241 of file parser.c.
Referenced by av_bitstream_filter_close(), ff_free_parser_state(), and uninit().
AVCodecParserContext* av_parser_init | ( | int | codec_id | ) |
Definition at line 38 of file parser.c.
Referenced by init(), and remove_extradata().
AVCodecParser* av_parser_next | ( | AVCodecParser * | c | ) |
attribute_deprecated int av_parser_parse | ( | AVCodecParserContext * | s, | |
AVCodecContext * | avctx, | |||
uint8_t ** | poutbuf, | |||
int * | poutbuf_size, | |||
const uint8_t * | buf, | |||
int | buf_size, | |||
int64_t | pts, | |||
int64_t | dts | |||
) |
buf | input | |
buf_size | input length, to signal EOF, this should be 0 (so that the last frame can be output) | |
pts | input presentation timestamp | |
dts | input decoding timestamp | |
poutbuf | will contain a pointer to the first byte of the output frame | |
poutbuf_size | will contain the length of the output frame |
Example:
while(in_len){ len = av_parser_parse(myparser, AVCodecContext, &data, &size, in_data, in_len, pts, dts); in_data += len; in_len -= len; if(size) decode_frame(data, size); }
int av_parser_parse2 | ( | AVCodecParserContext * | s, | |
AVCodecContext * | avctx, | |||
uint8_t ** | poutbuf, | |||
int * | poutbuf_size, | |||
const uint8_t * | buf, | |||
int | buf_size, | |||
int64_t | pts, | |||
int64_t | dts, | |||
int64_t | pos | |||
) |
Parse a packet.
s | parser context. | |
avctx | codec context. | |
poutbuf | set to pointer to parsed buffer or NULL if not yet finished. | |
poutbuf_size | set to size of parsed buffer or zero if not yet finished. | |
buf | input buffer. | |
buf_size | input length, to signal EOF, this should be 0 (so that the last frame can be output). | |
pts | input presentation timestamp. | |
dts | input decoding timestamp. | |
pos | input byte position in stream. |
Example:
while(in_len){ len = av_parser_parse2(myparser, AVCodecContext, &data, &size, in_data, in_len, pts, dts, pos); in_data += len; in_len -= len; if(size) decode_frame(data, size); }
Definition at line 145 of file parser.c.
Referenced by av_parser_parse(), and decode().
void av_picture_copy | ( | AVPicture * | dst, | |
const AVPicture * | src, | |||
enum PixelFormat | pix_fmt, | |||
int | width, | |||
int | height | |||
) |
Copy image src to dst.
Wraps av_picture_data_copy() above.
Definition at line 728 of file imgconvert.c.
Referenced by avcodec_default_reget_buffer(), copy_frame(), qtrle_encode_frame(), queue_picture(), and roq_decode_frame().
int av_picture_crop | ( | AVPicture * | dst, | |
const AVPicture * | src, | |||
enum PixelFormat | pix_fmt, | |||
int | top_band, | |||
int | left_band | |||
) |
Crop image top and left side.
Definition at line 848 of file imgconvert.c.
attribute_deprecated void av_picture_data_copy | ( | uint8_t * | dst_data[4], | |
int | dst_linesize[4], | |||
uint8_t * | src_data[4], | |||
int | src_linesize[4], | |||
enum PixelFormat | pix_fmt, | |||
int | width, | |||
int | height | |||
) |
Definition at line 719 of file imgconvert.c.
int av_picture_pad | ( | AVPicture * | dst, | |
const AVPicture * | src, | |||
int | height, | |||
int | width, | |||
enum PixelFormat | pix_fmt, | |||
int | padtop, | |||
int | padbottom, | |||
int | padleft, | |||
int | padright, | |||
int * | color | |||
) |
Pad image.
Definition at line 878 of file imgconvert.c.
void av_register_bitstream_filter | ( | AVBitStreamFilter * | bsf | ) |
Definition at line 30 of file bitstream_filter.c.
void av_register_codec_parser | ( | AVCodecParser * | parser | ) |
void av_register_hwaccel | ( | AVHWAccel * | hwaccel | ) |
int av_resample | ( | struct AVResampleContext * | c, | |
short * | dst, | |||
short * | src, | |||
int * | consumed, | |||
int | src_size, | |||
int | dst_size, | |||
int | update_ctx | |||
) |
Resample an array of samples using a previously configured context.
src | an array of unconsumed samples | |
consumed | the number of samples of src which have been consumed are returned here | |
src_size | the number of unconsumed samples available | |
dst_size | the amount of space in samples available in dst | |
update_ctx | If this is 0 then the context will not be modified, that way several channels can be resampled with the same context. |
Definition at line 234 of file resample2.c.
Referenced by audio_resample().
void av_resample_close | ( | struct AVResampleContext * | c | ) |
Definition at line 223 of file resample2.c.
Referenced by audio_resample_close().
void av_resample_compensate | ( | struct AVResampleContext * | c, | |
int | sample_delta, | |||
int | compensation_distance | |||
) |
Compensate samplerate/timestamp drift.
The compensation is done by changing the resampler parameters, so no audible clicks or similar distortions occur
compensation_distance | distance in output samples over which the compensation should be performed | |
sample_delta | number of output samples which should be output less |
example: av_resample_compensate(c, 10, 500) here instead of 510 samples only 500 samples would be output
note, due to rounding the actual compensation might be slightly different, especially if the compensation_distance is large and the in_rate used during init is small
Definition at line 228 of file resample2.c.
Referenced by av_resample(), and do_audio_out().
struct AVResampleContext* av_resample_init | ( | int | out_rate, | |
int | in_rate, | |||
int | filter_length, | |||
int | log2_phase_count, | |||
int | linear, | |||
double | cutoff | |||
) | [read] |
Initialize an audio resampler.
Note, if either rate is not an integer then simply scale both rates up so they are.
filter_length | length of each FIR filter in the filterbank relative to the cutoff freq | |
log2_phase_count | log2 of the number of entries in the polyphase filterbank | |
linear | If 1 then the used FIR filter will be linearly interpolated between the 2 closest, if 0 the closest will be used | |
cutoff | cutoff frequency, 1.0 corresponds to half the output sampling rate |
Definition at line 189 of file resample2.c.
Referenced by av_audio_resample_init().
void av_shrink_packet | ( | AVPacket * | pkt, | |
int | size | |||
) |
Reduce packet size, correctly zeroing padding.
pkt | packet | |
size | new size |
Definition at line 68 of file avpacket.c.
Referenced by cin_read_packet(), ff_asf_parse_packet(), mxf_decrypt_triplet(), mxf_get_d10_aes3_packet(), nuv_packet(), and yop_read_packet().
unsigned int av_xiphlacing | ( | unsigned char * | s, | |
unsigned int | v | |||
) |
Encode extradata length to a buffer.
Used by xiph codecs.
s | buffer to write to; must be at least (v/255+1) bytes long | |
v | size of extradata in bytes |
Definition at line 1319 of file utils.c.
Referenced by fixup_vorbis_headers(), oggvorbis_encode_init(), parse_packed_headers(), and put_main_header().
void avcodec_align_dimensions | ( | AVCodecContext * | s, | |
int * | width, | |||
int * | height | |||
) |
Modify width and height values so that they will result in a memory buffer that is acceptable for the codec if you do not use any horizontal padding.
May only be used if a codec with CODEC_CAP_DR1 has been opened. If CODEC_FLAG_EMU_EDGE is not set, the dimensions must have been increased according to avcodec_get_edge_width() before.
void avcodec_align_dimensions2 | ( | AVCodecContext * | s, | |
int * | width, | |||
int * | height, | |||
int | linesize_align[4] | |||
) |
Modify width and height values so that they will result in a memory buffer that is acceptable for the codec if you also ensure that all line sizes are a multiple of the respective linesize_align[i].
May only be used if a codec with CODEC_CAP_DR1 has been opened. If CODEC_FLAG_EMU_EDGE is not set, the dimensions must have been increased according to avcodec_get_edge_width() before.
Definition at line 128 of file utils.c.
Referenced by avcodec_align_dimensions(), avcodec_default_get_buffer(), and input_get_buffer().
AVCodecContext* avcodec_alloc_context | ( | void | ) |
Allocate an AVCodecContext and set its fields to default values.
The resulting struct can be deallocated by simply calling av_free().
Definition at line 555 of file options.c.
Referenced by add_av_stream1(), add_codec(), audio_decode_example(), audio_encode_example(), config(), estimate_best_b_count(), ff_mov_init_hinting(), main(), mov_create_chapter_track(), read_ffserver_streams(), vf_open(), video_decode_example(), and video_encode_example().
AVCodecContext* avcodec_alloc_context2 | ( | enum | AVMediaType | ) |
THIS FUNCTION IS NOT YET PART OF THE PUBLIC API! we WILL change its arguments and name a few times!
Definition at line 541 of file options.c.
Referenced by avcodec_alloc_context(), and init_opts().
AVCodecContext* avcodec_alloc_context3 | ( | AVCodec * | codec | ) |
AVFrame* avcodec_alloc_frame | ( | void | ) |
Allocate an AVFrame and set its fields to default values.
The resulting struct can be deallocated by simply calling av_free().
Definition at line 493 of file utils.c.
Referenced by aac_encode_init(), aacPlus_encode_init(), adpcm_encode_init(), adx_encode_init(), alac_encode_init(), alloc_picture(), amr_nb_encode_init(), amr_wb_encode_init(), config(), decode_init(), encode_init(), Faac_encode_init(), ff_ac3_encode_init(), flac_encode_init(), g726_init(), input_init(), libgsm_init(), movie_init(), MP3lame_encode_init(), MPA_encode_init(), oggvorbis_encode_init(), pcm_encode_init(), roq_dpcm_encode_init(), sonic_encode_init(), video_decode_example(), video_encode_example(), video_thread(), vorbis_encode_init(), and vp8_init().
attribute_deprecated int avcodec_check_dimensions | ( | void * | av_log_ctx, | |
unsigned int | w, | |||
unsigned int | h | |||
) |
int avcodec_close | ( | AVCodecContext * | avctx | ) |
Definition at line 936 of file utils.c.
Referenced by audio_decode_example(), audio_encode_example(), close_audio(), close_connection(), close_video(), estimate_best_b_count(), stream_component_close(), uninit(), video_decode_example(), and video_encode_example().
const char* avcodec_configuration | ( | void | ) |
int avcodec_copy_context | ( | AVCodecContext * | dest, | |
const AVCodecContext * | src | |||
) |
Copy the settings of the source AVCodecContext into the destination AVCodecContext.
The resulting destination codec context will be unopened, i.e. you are required to call avcodec_open() before you can use this AVCodecContext to decode/encode video/audio data.
dest | target codec context, should be initialized with avcodec_alloc_context(), but otherwise uninitialized | |
src | source codec context |
Definition at line 559 of file options.c.
Referenced by applehttp_read_header(), ff_rtp_chain_mux_open(), http_receive_data(), read_ffserver_streams(), sap_fetch_packet(), and sap_read_header().
attribute_deprecated int avcodec_decode_audio2 | ( | AVCodecContext * | avctx, | |
int16_t * | samples, | |||
int * | frame_size_ptr, | |||
const uint8_t * | buf, | |||
int | buf_size | |||
) |
Decode an audio frame from buf into samples.
Wrapper function which calls avcodec_decode_audio3.
avctx | the codec context | |
[out] | samples | the output buffer |
[in,out] | frame_size_ptr | the output buffer size in bytes |
[in] | buf | the input buffer |
[in] | buf_size | the input buffer size in bytes |
int avcodec_decode_audio3 | ( | AVCodecContext * | avctx, | |
int16_t * | samples, | |||
int * | frame_size_ptr, | |||
AVPacket * | avpkt | |||
) |
Decode the audio frame of size avpkt->size from avpkt->data into samples.
Some decoders may support multiple frames in a single AVPacket, such decoders would then just decode the first frame. In this case, avcodec_decode_audio3 has to be called again with an AVPacket that contains the remaining data in order to decode the second frame etc. If no frame could be outputted, frame_size_ptr is zero. Otherwise, it is the decompressed frame size in bytes.
In practice, avpkt->data should have 4 byte alignment at minimum and samples should be 16 byte aligned unless the CPU doesn't need it (AltiVec and SSE do).
avctx | the codec context | |
[out] | samples | the output buffer, sample type in avctx->sample_fmt |
[in,out] | frame_size_ptr | the output buffer size in bytes |
[in] | avpkt | The input AVPacket containing the input buffer. You can create such packet with av_init_packet() and by then setting data and size, some decoders might in addition need other fields. All decoders are designed to use the least fields possible though. |
Definition at line 853 of file utils.c.
Referenced by audio_decode_example(), audio_decode_frame(), avcodec_decode_audio2(), and output_packet().
attribute_deprecated int avcodec_decode_subtitle | ( | AVCodecContext * | avctx, | |
AVSubtitle * | sub, | |||
int * | got_sub_ptr, | |||
const uint8_t * | buf, | |||
int | buf_size | |||
) |
int avcodec_decode_subtitle2 | ( | AVCodecContext * | avctx, | |
AVSubtitle * | sub, | |||
int * | got_sub_ptr, | |||
AVPacket * | avpkt | |||
) |
Decode a subtitle message.
Return a negative value on error, otherwise return the number of bytes used. If no subtitle could be decompressed, got_sub_ptr is zero. Otherwise, the subtitle is stored in *sub. Note that CODEC_CAP_DR1 is not available for subtitle codecs. This is for simplicity, because the performance difference is expect to be negligible and reusing a get_buffer written for video codecs would probably perform badly due to a potentially very different allocation pattern.
avctx | the codec context | |
[out] | sub | The AVSubtitle in which the decoded subtitle will be stored, must be freed with avsubtitle_free if *got_sub_ptr is set. |
[in,out] | got_sub_ptr | Zero if no subtitle could be decompressed, otherwise, it is nonzero. |
[in] | avpkt | The input AVPacket containing the input buffer. |
Definition at line 901 of file utils.c.
Referenced by avcodec_decode_subtitle(), output_packet(), and subtitle_thread().
attribute_deprecated int avcodec_decode_video | ( | AVCodecContext * | avctx, | |
AVFrame * | picture, | |||
int * | got_picture_ptr, | |||
const uint8_t * | buf, | |||
int | buf_size | |||
) |
Decode a video frame from buf into picture.
Wrapper function which calls avcodec_decode_video2.
avctx | the codec context | |
[out] | picture | The AVFrame in which the decoded video frame will be stored. |
[in] | buf | the input buffer |
[in] | buf_size | the size of the input buffer in bytes |
[in,out] | got_picture_ptr | Zero if no frame could be decompressed, otherwise, it is nonzero. |
int avcodec_decode_video2 | ( | AVCodecContext * | avctx, | |
AVFrame * | picture, | |||
int * | got_picture_ptr, | |||
AVPacket * | avpkt | |||
) |
Decode the video frame of size avpkt->size from avpkt->data into picture.
Some decoders may support multiple frames in a single AVPacket, such decoders would then just decode the first frame.
In practice, avpkt->data should have 4 byte alignment at minimum.
avctx | the codec context | |
[out] | picture | The AVFrame in which the decoded video frame will be stored. Use avcodec_alloc_frame to get an AVFrame, the codec will allocate memory for the actual bitmap. with default get/release_buffer(), the decoder frees/reuses the bitmap as it sees fit. with overridden get/release_buffer() (needs CODEC_CAP_DR1) the user decides into what buffer the decoder decodes and the decoder tells the user once it does not need the data anymore, the user app can at this point free/reuse/keep the memory as it sees fit. |
[in] | avpkt | The input AVpacket containing the input buffer. You can create such packet with av_init_packet() and by then setting data and size, some decoders might in addition need other fields like flags&AV_PKT_FLAG_KEY. All decoders are designed to use the least fields possible. |
[in,out] | got_picture_ptr | Zero if no frame could be decompressed, otherwise, it is nonzero. |
Definition at line 790 of file utils.c.
Referenced by avcodec_decode_video(), get_video_frame(), movie_get_frame(), output_packet(), and video_decode_example().
int avcodec_default_execute | ( | AVCodecContext * | c, | |
int(*)(AVCodecContext *c2, void *arg2) | func, | |||
void * | arg, | |||
int * | ret, | |||
int | count, | |||
int | size | |||
) |
Definition at line 457 of file utils.c.
Referenced by avcodec_thread_execute().
int avcodec_default_execute2 | ( | AVCodecContext * | c, | |
int(*)(AVCodecContext *c2, void *arg2, int, int) | func, | |||
void * | arg, | |||
int * | ret, | |||
int | count | |||
) |
void avcodec_default_free_buffers | ( | AVCodecContext * | s | ) |
Definition at line 1236 of file utils.c.
Referenced by avcodec_close(), frame_thread_free(), and MPV_common_end().
int avcodec_default_get_buffer | ( | AVCodecContext * | s, | |
AVFrame * | pic | |||
) |
Definition at line 247 of file utils.c.
Referenced by ff_thread_get_buffer(), and submit_packet().
enum PixelFormat avcodec_default_get_format | ( | struct AVCodecContext * | s, | |
const enum PixelFormat * | fmt | |||
) |
int avcodec_default_reget_buffer | ( | AVCodecContext * | s, | |
AVFrame * | pic | |||
) |
void avcodec_default_release_buffer | ( | AVCodecContext * | s, | |
AVFrame * | pic | |||
) |
int avcodec_encode_audio | ( | AVCodecContext * | avctx, | |
uint8_t * | buf, | |||
int | buf_size, | |||
const short * | samples | |||
) |
Encode an audio frame from samples into buf.
avctx | the codec context | |
[out] | buf | the output buffer |
[in] | buf_size | the output buffer size |
[in] | samples | the input buffer containing the samples The number of samples read from this buffer is frame_size*channels, both of which are defined in avctx. For PCM audio the number of samples read from samples is equal to buf_size * input_sample_size / output_sample_size. |
Definition at line 694 of file utils.c.
Referenced by audio_encode_example(), do_audio_out(), output_packet(), and write_audio_frame().
int avcodec_encode_subtitle | ( | AVCodecContext * | avctx, | |
uint8_t * | buf, | |||
int | buf_size, | |||
const AVSubtitle * | sub | |||
) |
Definition at line 728 of file utils.c.
Referenced by do_subtitle_out().
int avcodec_encode_video | ( | AVCodecContext * | avctx, | |
uint8_t * | buf, | |||
int | buf_size, | |||
const AVFrame * | pict | |||
) |
Encode a video frame from pict into buf.
The input picture should be stored using a specific format, namely avctx.pix_fmt.
avctx | the codec context | |
[out] | buf | the output buffer for the bitstream of encoded frame |
[in] | buf_size | the size of the output buffer in bytes |
[in] | pict | the input picture to encode |
Definition at line 709 of file utils.c.
Referenced by do_video_out(), estimate_best_b_count(), filter(), output_packet(), video_encode_example(), write_png(), and write_video_frame().
enum PixelFormat avcodec_find_best_pix_fmt | ( | int64_t | pix_fmt_mask, | |
enum PixelFormat | src_pix_fmt, | |||
int | has_alpha, | |||
int * | loss_ptr | |||
) |
Find the best pixel format to convert to given a certain source pixel format.
When converting from one pixel format to another, information loss may occur. For example, when converting from RGB24 to GRAY, the color information will be lost. Similarly, other losses occur when converting from some formats to other formats. avcodec_find_best_pix_fmt() searches which of the given pixel formats should be used to suffer the least amount of loss. The pixel formats from which it chooses one, are determined by the pix_fmt_mask parameter.
src_pix_fmt = PIX_FMT_YUV420P; pix_fmt_mask = (1 << PIX_FMT_YUV422P) || (1 << PIX_FMT_RGB24); dst_pix_fmt = avcodec_find_best_pix_fmt(pix_fmt_mask, src_pix_fmt, alpha, &loss);
[in] | pix_fmt_mask | bitmask determining which pixel format to choose from |
[in] | src_pix_fmt | source pixel format |
[in] | has_alpha | Whether the source pixel format alpha channel is used. |
[out] | loss_ptr | Combination of flags informing you what kind of losses will occur. |
Definition at line 673 of file imgconvert.c.
Find a registered decoder with a matching codec ID.
id | CodecID of the requested decoder |
Definition at line 1004 of file utils.c.
Referenced by audio_decode_example(), avcodec_string(), find_codec_or_die(), movie_init(), open_input_file(), open_parser(), opt_input_file(), sdp_parse_rtpmap(), stream_component_open(), transcode(), and video_decode_example().
AVCodec* avcodec_find_decoder_by_name | ( | const char * | name | ) |
Find a registered decoder with the specified name.
name | name of the requested decoder |
Definition at line 1020 of file utils.c.
Referenced by find_codec_or_die(), and opt_input_file().
Find a registered encoder with a matching codec ID.
id | CodecID of the requested encoder |
Definition at line 974 of file utils.c.
Referenced by asf_write_header1(), audio_encode_example(), avcodec_string(), compute_status(), config(), estimate_best_b_count(), ffserver_opt_preset(), find_codec_or_die(), new_audio_stream(), new_subtitle_stream(), new_video_stream(), open_audio(), open_video(), read_ffserver_streams(), transcode(), vf_open(), and video_encode_example().
AVCodec* avcodec_find_encoder_by_name | ( | const char * | name | ) |
Find a registered encoder with the specified name.
name | name of the requested encoder |
Definition at line 990 of file utils.c.
Referenced by find_codec_or_die(), new_audio_stream(), new_subtitle_stream(), new_video_stream(), opt_audio_codec(), and opt_video_codec().
void avcodec_flush_buffers | ( | AVCodecContext * | avctx | ) |
Flush buffers, should be called when seeking or when switching to a different stream.
Definition at line 1228 of file utils.c.
Referenced by audio_decode_frame(), get_video_frame(), and subtitle_thread().
void avcodec_get_chroma_sub_sample | ( | enum PixelFormat | pix_fmt, | |
int * | h_shift, | |||
int * | v_shift | |||
) |
Definition at line 414 of file imgconvert.c.
Referenced by avcodec_default_get_buffer(), encode_init(), ff_print_debug_info(), j2kenc_init(), load_input_picture(), MPV_common_init(), MPV_encode_init(), vp3_decode_init(), and yuv4_write_packet().
void avcodec_get_context_defaults | ( | AVCodecContext * | s | ) |
Set the fields of the given AVCodecContext to default values.
s | The AVCodecContext of which the fields should be set to default values. |
void avcodec_get_context_defaults2 | ( | AVCodecContext * | s, | |
enum | AVMediaType | |||
) |
THIS FUNCTION IS NOT YET PART OF THE PUBLIC API! we WILL change its arguments and name a few times!
Definition at line 481 of file options.c.
Referenced by avcodec_alloc_context2(), avcodec_get_context_defaults(), avcodec_get_context_defaults3(), and parse_ffconfig().
int avcodec_get_context_defaults3 | ( | AVCodecContext * | s, | |
AVCodec * | codec | |||
) |
THIS FUNCTION IS NOT YET PART OF THE PUBLIC API! we WILL change its arguments and name a few times!
Definition at line 511 of file options.c.
Referenced by avcodec_alloc_context3(), new_audio_stream(), new_data_stream(), new_subtitle_stream(), and new_video_stream().
unsigned avcodec_get_edge_width | ( | void | ) |
Return the amount of padding in pixels which the get_buffer callback must provide around the edge of the image for codecs which do not have the CODEC_FLAG_EMU_EDGE flag.
Definition at line 105 of file utils.c.
Referenced by input_get_buffer().
void avcodec_get_frame_defaults | ( | AVFrame * | pic | ) |
Set the fields of the given AVFrame to default values.
pic | The AVFrame of which the fields should be set to default values. |
Definition at line 483 of file utils.c.
Referenced by a64multi_init_encoder(), aasc_decode_init(), aura_decode_init(), avcodec_alloc_frame(), avs_decode_init(), bethsoftvid_decode_init(), bfi_decode_init(), bmp_decode_init(), bmp_encode_init(), cdg_init_frame(), cinepak_decode_init(), cinvideo_decode_init(), cmv_decode_init(), common_init(), cyuv_decode_init(), decode_init(), dnxhd_decode_init(), do_video_out(), dvvideo_decode_frame(), encode_init(), escape124_decode_frame(), escape124_decode_init(), estimate_best_b_count(), ff_mjpeg_decode_init(), ff_pnm_init(), ff_vp56_init(), flashsv_decode_init(), flic_decode_init(), frame_worker_thread(), gif_decode_init(), idcin_decode_init(), indeo3_decode_init(), ipvideo_decode_init(), ir2_decode_init(), j2kdec_init(), libopenjpeg_decode_init(), mdec_common_init(), mm_decode_init(), mp_decode_init(), MPV_common_init(), msrle_decode_init(), msvideo1_decode_init(), output_packet(), pcx_encode_init(), pcx_init(), png_dec_init(), png_enc_init(), ptx_init(), qtrle_decode_init(), rl2_decode_init(), roq_decode_init(), rpza_decode_init(), seqvideo_decode_init(), sgi_init(), smc_decode_init(), sunrast_init(), targa_encode_init(), targa_init(), tgv_decode_init(), tiff_init(), tmv_decode_init(), truemotion1_decode_init(), txd_init(), ulti_decode_init(), vmdvideo_decode_init(), vqa_decode_init(), xan_decode_init(), and yop_decode_init().
attribute_deprecated enum PixelFormat avcodec_get_pix_fmt | ( | const char * | name | ) |
Return the pixel format corresponding to the name name.
If there is no pixel format with name name, then look for a pixel format with the name corresponding to the native endian format of name. For example in a little-endian system, first look for "gray16", then for "gray16le".
Finally if no pixel format has been found, return PIX_FMT_NONE.
Definition at line 428 of file imgconvert.c.
int avcodec_get_pix_fmt_loss | ( | enum PixelFormat | dst_pix_fmt, | |
enum PixelFormat | src_pix_fmt, | |||
int | has_alpha | |||
) |
Compute what kind of losses will occur when converting from one specific pixel format to another.
When converting from one pixel format to another, information loss may occur. For example, when converting from RGB24 to GRAY, the color information will be lost. Similarly, other losses occur when converting from some formats to other formats. These losses can involve loss of chroma, but also loss of resolution, loss of color depth, loss due to the color space conversion, loss of the alpha bits or loss due to color quantization. avcodec_get_fix_fmt_loss() informs you about the various types of losses which will occur when converting from one pixel format to another.
[in] | dst_pix_fmt | destination pixel format |
[in] | src_pix_fmt | source pixel format |
[in] | has_alpha | Whether the source pixel format alpha channel is used. |
Definition at line 535 of file imgconvert.c.
Referenced by avcodec_find_best_pix_fmt(), and avcodec_find_best_pix_fmt1().
attribute_deprecated const char* avcodec_get_pix_fmt_name | ( | enum PixelFormat | pix_fmt | ) |
Return the short name for a pixel format.
Definition at line 421 of file imgconvert.c.
void avcodec_init | ( | void | ) |
Initialize libavcodec.
If called more than once, does nothing.
Definition at line 1217 of file utils.c.
Referenced by avcodec_register(), and main().
const char* avcodec_license | ( | void | ) |
int avcodec_open | ( | AVCodecContext * | avctx, | |
AVCodec * | codec | |||
) |
Initialize the AVCodecContext to use the given AVCodec.
Prior to using this function the context has to be allocated.
The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(), avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for retrieving a codec.
avcodec_register_all(); codec = avcodec_find_decoder(CODEC_ID_H264); if (!codec) exit(1); context = avcodec_alloc_context(); if (avcodec_open(context, codec) < 0) exit(1);
avctx | The context which will be set up to use the given codec. | |
codec | The codec to use within the context. |
Definition at line 510 of file utils.c.
Referenced by audio_decode_example(), audio_encode_example(), config(), movie_init(), open_audio(), open_input_file(), open_parser(), open_video(), stream_component_open(), transcode(), vf_open(), video_decode_example(), and video_encode_example().
int avcodec_open2 | ( | AVCodecContext * | avctx, | |
AVCodec * | codec, | |||
AVDictionary ** | options | |||
) |
Initialize the AVCodecContext to use the given AVCodec.
Prior to using this function the context has to be allocated with avcodec_alloc_context().
The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(), avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for retrieving a codec.
avcodec_register_all(); av_dict_set(&opts, "b", "2.5M", 0); codec = avcodec_find_decoder(CODEC_ID_H264); if (!codec) exit(1); context = avcodec_alloc_context(); if (avcodec_open(context, codec, opts) < 0) exit(1);
avctx | The context to initialize. | |
options | A dictionary filled with AVCodecContext and codec-private options. On return this object will be filled with options that were not found. |
Definition at line 516 of file utils.c.
Referenced by avcodec_open(), and estimate_best_b_count().
int avcodec_parse_frame | ( | AVCodecContext * | avctx, | |
uint8_t ** | pdata, | |||
int * | data_size_ptr, | |||
uint8_t * | buf, | |||
int | buf_size | |||
) |
attribute_deprecated void avcodec_pix_fmt_string | ( | char * | buf, | |
int | buf_size, | |||
enum PixelFormat | pix_fmt | |||
) |
Definition at line 433 of file imgconvert.c.
unsigned int avcodec_pix_fmt_to_codec_tag | ( | enum PixelFormat | pix_fmt | ) |
Return a value representing the fourCC code associated to the pixel format pix_fmt, or 0 if no associated fourCC code can be found.
Definition at line 142 of file raw.c.
Referenced by raw_init_encoder().
void avcodec_register | ( | AVCodec * | codec | ) |
Register the codec codec and initialize libavcodec.
Definition at line 88 of file utils.c.
Referenced by register_avcodec().
void avcodec_register_all | ( | void | ) |
Register all the codecs, parsers and bitstream filters which were enabled at configuration time.
If you do not call this function you can select exactly which formats you want to support, by using the individual registration functions.
Definition at line 48 of file allcodecs.c.
Referenced by av_register_all(), main(), and vf_open().
void avcodec_set_dimensions | ( | AVCodecContext * | s, | |
int | width, | |||
int | height | |||
) |
Definition at line 110 of file utils.c.
Referenced by av_mpeg4_decode_header(), avcodec_open2(), avs_decode_init(), cmv_process_header(), decode_frame(), decode_init(), decode_slice_header(), dnxhd_decode_frame(), dvvideo_decode_frame(), execute_code(), ff_dirac_parse_sequence_header(), ff_h263_decode_frame(), ff_mjpeg_decode_sof(), ff_vp56_decode_frame(), gif_decode_frame(), h261_decode_frame(), init_image(), iv_decode_frame(), libopenjpeg_decode_frame(), mpeg_decode_postinit(), mpegvideo_extract_headers(), parse_presentation_segment(), pcx_decode_frame(), ptx_decode_frame(), rv20_decode_picture_header(), rv34_decode_slice(), sunrast_decode_frame(), svq1_decode_frame(), tgq_decode_frame(), tgv_decode_frame(), theora_decode_header(), theora_header(), tqi_decode_frame(), truemotion1_decode_header(), txd_decode_frame(), update_dimensions(), vp56_size_changed(), vp5_parse_header(), vp6_parse_header(), and vp8_decode().
void avcodec_string | ( | char * | buf, | |
int | buf_size, | |||
AVCodecContext * | enc, | |||
int | encode | |||
) |
void avcodec_thread_free | ( | AVCodecContext * | s | ) |
attribute_deprecated int avcodec_thread_init | ( | AVCodecContext * | s, | |
int | thread_count | |||
) |
unsigned avcodec_version | ( | void | ) |
int avpicture_alloc | ( | AVPicture * | picture, | |
enum PixelFormat | pix_fmt, | |||
int | width, | |||
int | height | |||
) |
Allocate memory for a picture.
Call avpicture_free() to free it.
picture | the picture to be filled in | |
pix_fmt | the format of the picture | |
width | the width of the picture | |
height | the height of the picture |
Definition at line 822 of file imgconvert.c.
Referenced by do_video_out(), ff_create_schro_frame(), libschroedinger_handle_first_access_unit(), and qtrle_encode_init().
int avpicture_deinterlace | ( | AVPicture * | dst, | |
const AVPicture * | src, | |||
enum PixelFormat | pix_fmt, | |||
int | width, | |||
int | height | |||
) |
Definition at line 1093 of file imgconvert.c.
Referenced by pre_process_video_frame().
int avpicture_fill | ( | AVPicture * | picture, | |
uint8_t * | ptr, | |||
enum PixelFormat | pix_fmt, | |||
int | width, | |||
int | height | |||
) |
Fill in the AVPicture fields.
The fields of the given AVPicture are filled in by using the 'ptr' address which points to the image data buffer. Depending on the specified picture format, one or multiple image data pointers and line sizes will be set. If a planar format is specified, several pointers will be set pointing to the different picture planes and the line sizes of the different planes will be stored in the lines_sizes array. Call with ptr == NULL to get the required size for the ptr buffer.
To allocate the buffer and fill in the AVPicture fields in one call, use avpicture_alloc().
picture | AVPicture whose fields are to be filled in | |
ptr | Buffer which will contain or contains the actual image data | |
pix_fmt | The format in which the picture data is stored. | |
width | the width of the image in pixels | |
height | the height of the image in pixels |
Definition at line 461 of file imgconvert.c.
Referenced by alloc_picture(), avpicture_get_size(), copy_frame(), libdirac_decode_frame(), libschroedinger_decode_frame(), output_packet(), pre_process_video_frame(), raw_decode(), and sdl_write_packet().
void avpicture_free | ( | AVPicture * | picture | ) |
Free a picture previously allocated by avpicture_alloc().
The data buffer used by the AVPicture is freed, but the AVPicture structure itself is not.
picture | the AVPicture to be freed |
Definition at line 835 of file imgconvert.c.
Referenced by FreeSchroFrame(), libschroedinger_decode_close(), and qtrle_encode_end().
int avpicture_get_size | ( | enum PixelFormat | pix_fmt, | |
int | width, | |||
int | height | |||
) |
Calculate the size in bytes that a picture of the given width and height would occupy if stored in the given picture format.
Note that this returns the size of a compact representation as generated by avpicture_layout(), which can be smaller than the size required for e.g. avpicture_fill().
pix_fmt | the given picture format | |
width | the width of the image | |
height | the height of the image |
Definition at line 518 of file imgconvert.c.
Referenced by alloc_picture(), avpicture_layout(), dc1394_read_header(), libdirac_decode_frame(), libdirac_encode_init(), libschroedinger_encode_init(), pam_encode_frame(), pnm_encode_frame(), pnm_parse(), pre_process_video_frame(), raw_init_decoder(), rawvideo_read_packet(), targa_encode_frame(), v4l2_read_header(), and yuv4_read_packet().
int avpicture_layout | ( | const AVPicture * | src, | |
enum PixelFormat | pix_fmt, | |||
int | width, | |||
int | height, | |||
unsigned char * | dest, | |||
int | dest_size | |||
) |
Copy pixel data from an AVPicture into a buffer.
The data is stored compactly, without any gaps for alignment or padding which may be applied by avpicture_fill().
[in] | src | AVPicture containing image data |
[in] | pix_fmt | The format in which the picture data is stored. |
[in] | width | the width of the image in pixels. |
[in] | height | the height of the image in pixels. |
[out] | dest | A buffer into which picture data will be copied. |
[in] | dest_size | The size of 'dest'. |
Definition at line 475 of file imgconvert.c.
Referenced by encode_frame(), libdirac_encode_frame(), libschroedinger_frame_from_data(), and raw_encode().
void avsubtitle_free | ( | AVSubtitle * | sub | ) |
Frees all allocated data in the given subtitle struct.
sub | AVSubtitle to free. |
Definition at line 916 of file utils.c.
Referenced by free_subpicture(), and output_packet().
int img_get_alpha_info | ( | const AVPicture * | src, | |
enum PixelFormat | pix_fmt, | |||
int | width, | |||
int | height | |||
) |
Tell if an image really has transparent alpha values.
Definition at line 964 of file imgconvert.c.
attribute_deprecated void register_avcodec | ( | AVCodec * | codec | ) |