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FFmpeg
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Types and functions for working with AVPacket. More...
Data Structures | |
| struct | AVPacketSideData |
| struct | AVPacket |
| This structure stores compressed data. More... | |
Macros | |
| #define | AV_PKT_FLAG_KEY 0x0001 |
| The packet contains a keyframe. More... | |
| #define | AV_PKT_FLAG_CORRUPT 0x0002 |
| The packet content is corrupted. More... | |
Functions | |
| attribute_deprecated void | av_destruct_packet (AVPacket *pkt) |
| Default packet destructor. More... | |
| void | av_init_packet (AVPacket *pkt) |
| Initialize optional fields of a packet with default values. More... | |
| int | av_new_packet (AVPacket *pkt, int size) |
| Allocate the payload of a packet and initialize its fields with default values. More... | |
| void | av_shrink_packet (AVPacket *pkt, int size) |
| Reduce packet size, correctly zeroing padding. More... | |
| int | av_grow_packet (AVPacket *pkt, int grow_by) |
| Increase packet size, correctly zeroing padding. More... | |
| int | av_packet_from_data (AVPacket *pkt, uint8_t *data, int size) |
| Initialize a reference-counted packet from av_malloc()ed data. More... | |
| int | av_dup_packet (AVPacket *pkt) |
| int | av_copy_packet (AVPacket *dst, const AVPacket *src) |
| Copy packet, including contents. More... | |
| int | av_copy_packet_side_data (AVPacket *dst, const AVPacket *src) |
| Copy packet side data. More... | |
| void | av_free_packet (AVPacket *pkt) |
| Free a packet. More... | |
| uint8_t * | av_packet_new_side_data (AVPacket *pkt, enum AVPacketSideDataType type, int size) |
| Allocate new information of a packet. More... | |
| int | av_packet_shrink_side_data (AVPacket *pkt, enum AVPacketSideDataType type, int size) |
| Shrink the already allocated side data buffer. More... | |
| uint8_t * | av_packet_get_side_data (AVPacket *pkt, enum AVPacketSideDataType type, int *size) |
| Get side information from packet. More... | |
| int | av_packet_merge_side_data (AVPacket *pkt) |
| int | av_packet_split_side_data (AVPacket *pkt) |
| const char * | av_packet_side_data_name (enum AVPacketSideDataType type) |
| uint8_t * | av_packet_pack_dictionary (AVDictionary *dict, int *size) |
| Pack a dictionary for use in side_data. More... | |
| int | av_packet_unpack_dictionary (const uint8_t *data, int size, AVDictionary **dict) |
| Unpack a dictionary from side_data. More... | |
| void | av_packet_free_side_data (AVPacket *pkt) |
| Convenience function to free all the side data stored. More... | |
| int | av_packet_ref (AVPacket *dst, const AVPacket *src) |
| Setup a new reference to the data described by a given packet. More... | |
| void | av_packet_unref (AVPacket *pkt) |
| Wipe the packet. More... | |
| void | av_packet_move_ref (AVPacket *dst, AVPacket *src) |
| Move every field in src to dst and reset src. More... | |
| int | av_packet_copy_props (AVPacket *dst, const AVPacket *src) |
| Copy only "properties" fields from src to dst. More... | |
| void | av_packet_rescale_ts (AVPacket *pkt, AVRational tb_src, AVRational tb_dst) |
| Convert valid timing fields (timestamps / durations) in a packet from one timebase to another. More... | |
Types and functions for working with AVPacket.
| #define AV_PKT_FLAG_KEY 0x0001 |
The packet contains a keyframe.
Definition at line 1208 of file avcodec.h.
Referenced by a64multi_encode_frame(), ape_tag_read_field(), apng_read_packet(), asf_parse_packet(), asf_read_picture(), asf_read_pts(), asf_write_packet(), av_read_frame(), avcodec_encode_audio(), avcodec_encode_audio2(), avcodec_encode_video(), avf_read_packet(), avi_write_packet(), avpriv_dv_produce_packet(), avs_read_audio_packet(), avs_read_video_packet(), avui_encode_frame(), bmp_encode_frame(), cdxl_read_packet(), cine_read_packet(), cinepak_encode_frame(), compute_pkt_fields(), dash_write_packet(), dc1394_read_common(), decode_frame(), decode_frame_common(), dirac_gptopts(), dnxhd_encode_picture(), do_streamcopy(), do_video_out(), dv_extract_audio_info(), dvvideo_encode_frame(), ea_read_packet(), encode_apng(), encode_frame(), encode_picture_ls(), encode_png(), ff_flac_parse_picture(), ff_id3v2_parse_apic(), ff_img_read_packet(), ff_mov_add_hinted_packet(), ff_mov_write_packet(), ff_mpv_encode_picture(), ff_rm_parse_packet(), ff_rm_retrieve_cache(), ff_subtitles_queue_insert(), ffm_read_packet(), ffm_write_packet(), ffmmal_add_packet(), filter_packet(), flashsv2_encode_frame(), flashsv_decode_frame(), flashsv_encode_frame(), flv_data_packet(), flv_read_packet(), flv_write_packet(), framecrc_write_packet(), get_attachment(), get_needed_flags(), gif_encode_frame(), gif_read_packet(), h263_handle_packet(), hds_write_packet(), hls_read_packet(), hls_write_packet(), http_prepare_data(), idcin_read_packet(), iff_read_packet(), ism_write_packet(), libopenjpeg_encode_frame(), libschroedinger_encode_frame(), libwebp_anim_encode_frame(), libwebp_encode_frame(), libx265_encode_frame(), ljpeg_encode_frame(), lmlm4_read_packet(), lvf_read_packet(), lxf_read_packet(), main(), matroska_parse_block(), matroska_read_header(), mkv_write_packet(), mkv_write_packet_internal(), modplug_read_packet(), mov_create_chapter_track(), mov_create_timecode_track(), mov_parse_vc1_frame(), mov_read_covr(), mov_read_packet(), mov_write_single_packet(), mpeg_mux_write_packet(), mpegts_write_flush(), mpegts_write_packet_internal(), msnwc_tcp_read_packet(), mv_read_packet(), nsv_read_chunk(), nut_read_packet(), nut_write_packet(), nuv_packet(), ogg_read_packet(), ogg_read_timestamp(), ogg_validate_keyframe(), ogg_write_packet_internal(), ogm_packet(), old_dirac_gptopts(), pam_encode_frame(), parse_packet(), pcx_encode_frame(), pkt_dump_internal(), pnm_encode_frame(), process_output_surface(), prores_encode_frame(), put_payload_header(), qt_rtp_parse_packet(), qtkit_read_packet(), qtrle_encode_frame(), raw_encode(), read_frame(), read_frame_internal(), read_packet(), rm_write_audio(), rm_write_video(), roq_encode_frame(), rpl_read_packet(), sdr2_read_packet(), seek_frame_generic(), seg_write_packet(), show_packet(), siff_read_packet(), smush_read_packet(), Stagefright_decode_frame(), storeframe(), sunrast_encode_frame(), sup_read_packet(), svc_encode_frame(), svq1_encode_frame(), targa_encode_frame(), theora_gptopts(), tmv_read_packet(), utvideo_encode_frame(), v308_encode_frame(), v408_encode_frame(), v410_encode_frame(), vc1t_read_packet(), vc1test_write_packet(), vid_read_packet(), decklink_input_callback::VideoInputFrameArrived(), vp8_gptopts(), vp8_handle_packet(), webm_clusters_start_with_keyframe(), write_frame(), write_timestamp(), write_video_frame(), X264_frame(), XAVS_frame(), xbm_encode_frame(), xface_encode_frame(), xmv_fetch_video_packet(), xvid_encode_frame(), xwd_encode_frame(), y41p_encode_frame(), yop_read_packet(), yuv4_encode_frame(), and zerocodec_decode_frame().
| #define AV_PKT_FLAG_CORRUPT 0x0002 |
The packet content is corrupted.
Definition at line 1209 of file avcodec.h.
Referenced by aiff_read_packet(), apc_read_packet(), append_packet_chunked(), ff_pcm_read_packet(), ff_read_packet(), handle_packet(), mp3_read_packet(), new_pes_packet(), oma_read_packet(), opus_packet(), read_packet(), sol_read_packet(), vorbis_packet(), and vp8_handle_packet().
| enum AVPacketSideDataType |
| Enumerator | |
|---|---|
| AV_PKT_DATA_PALETTE | |
| AV_PKT_DATA_NEW_EXTRADATA | |
| AV_PKT_DATA_PARAM_CHANGE |
An AV_PKT_DATA_PARAM_CHANGE side data packet is laid out as follows: u32le param_flags
if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT)
s32le channel_count
if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT)
u64le channel_layout
if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE)
s32le sample_rate
if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS)
s32le width
s32le height
|
| AV_PKT_DATA_H263_MB_INFO |
An AV_PKT_DATA_H263_MB_INFO side data packet contains a number of structures with info about macroblocks relevant to splitting the packet into smaller packets on macroblock edges (e.g. as for RFC 2190). That is, it does not necessarily contain info about all macroblocks, as long as the distance between macroblocks in the info is smaller than the target payload size. Each MB info structure is 12 bytes, and is laid out as follows: |
| AV_PKT_DATA_REPLAYGAIN |
This side data should be associated with an audio stream and contains ReplayGain information in form of the AVReplayGain struct. |
| AV_PKT_DATA_DISPLAYMATRIX |
This side data contains a 3x3 transformation matrix describing an affine transformation that needs to be applied to the decoded video frames for correct presentation. See libavutil/display.h for a detailed description of the data. |
| AV_PKT_DATA_STEREO3D |
This side data should be associated with a video stream and contains Stereoscopic 3D information in form of the AVStereo3D struct. |
| AV_PKT_DATA_AUDIO_SERVICE_TYPE |
This side data should be associated with an audio stream and corresponds to enum AVAudioServiceType. |
| AV_PKT_DATA_SKIP_SAMPLES |
Recommmends skipping the specified number of samples. |
| AV_PKT_DATA_JP_DUALMONO |
An AV_PKT_DATA_JP_DUALMONO side data packet indicates that the packet may contain "dual mono" audio specific to Japanese DTV and if it is true, recommends only the selected channel to be used. u8 selected channels (0=mail/left, 1=sub/right, 2=both)
|
| AV_PKT_DATA_STRINGS_METADATA |
A list of zero terminated key/value strings. There is no end marker for the list, so it is required to rely on the side data size to stop. |
| AV_PKT_DATA_SUBTITLE_POSITION |
Subtitle event position. u32le x1
u32le y1
u32le x2
u32le y2
|
| AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL |
Data found in BlockAdditional element of matroska container. There is no end marker for the data, so it is required to rely on the side data size to recognize the end. 8 byte id (as found in BlockAddId) followed by data. |
| AV_PKT_DATA_WEBVTT_IDENTIFIER |
The optional first identifier line of a WebVTT cue. |
| AV_PKT_DATA_WEBVTT_SETTINGS |
The optional settings (rendering instructions) that immediately follow the timestamp specifier of a WebVTT cue. |
| AV_PKT_DATA_METADATA_UPDATE |
A list of zero terminated key/value strings. There is no end marker for the list, so it is required to rely on the side data size to stop. This side data includes updated metadata which appeared in the stream. |
| attribute_deprecated void av_destruct_packet | ( | AVPacket * | pkt | ) |
Default packet destructor.
Definition at line 35 of file avpacket.c.
Referenced by iec61883_parse_queue_dv(), and read_packet().
Initialize optional fields of a packet with default values.
Note, this does not touch the data and size members, which have to be initialized separately.
| pkt | packet |
Definition at line 49 of file avpacket.c.
Referenced by audio_decode_example(), audio_encode_example(), av_get_packet(), av_interleaved_write_frame(), av_new_packet(), av_packet_move_ref(), av_packet_unref(), av_write_uncoded_frame_internal(), avcodec_encode_audio(), avcodec_encode_audio2(), avcodec_encode_video(), avcodec_encode_video2(), avformat_find_stream_info(), avpriv_dv_produce_packet(), dc1394_read_common(), do_audio_out(), do_streamcopy(), do_subtitle_out(), do_video_out(), dv_extract_audio_info(), encode_frame(), encode_write_frame(), ff_alloc_packet2(), ff_flac_parse_picture(), ff_id3v2_parse_apic(), ff_interleave_packet_per_dts(), ff_load_image(), ff_mov_add_hinted_packet(), ff_read_packet(), ff_rtp_finalize_packet(), filter(), filter_frame(), flac_read_timestamp(), flush_encoders(), hnm_read_header(), init_packet(), lavfi_read_packet(), main(), matroska_read_header(), mkv_write_header(), mov_write_subtitle_end_packet(), movie_push_frame(), mpegts_get_dts(), mpegts_write_packet_internal(), mxf_interleave_get_packet(), new_pes_packet(), packet_queue_put_nullpacket(), parse_packet(), process_input_packet(), qt_rtp_parse_packet(), read_frame_internal(), read_interval_packets(), reset_packet(), rtp_mpegts_write_packet(), run_test(), sp5x_decode_frame(), tdsc_decode_jpeg_tile(), v4l2_read_packet(), video_decode_example(), video_encode_example(), decklink_input_callback::VideoInputFrameArrived(), vp8_lossy_decode_frame(), wc3_read_header(), worker(), write_audio_frame(), write_skip_frames(), write_video_frame(), and x11grab_read_packet().
| 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 83 of file avpacket.c.
Referenced by aac_parse_packet(), ac3_handle_packet(), amr_handle_packet(), amr_read_packet(), ape_read_packet(), asf_parse_packet(), audio_read_packet(), av_grow_packet(), avf_read_packet(), avisynth_read_packet_audio(), avisynth_read_packet_video(), avs_read_video_packet(), bmv_read_packet(), callback(), cdxl_read_packet(), cin_read_packet(), create_subcc_packet(), decode_frame(), dss_723_1_read_packet(), dss_sp_read_packet(), dxa_read_packet(), fbdev_read_packet(), ff_alloc_packet2(), ff_h263_handle_packet(), ff_h264_handle_aggregated_packet(), ff_h264_handle_frag_packet(), ff_img_read_packet(), ff_raw_read_partial_packet(), ff_rm_retrieve_cache(), ff_spdif_read_packet(), ff_subtitles_queue_insert(), ffm_read_packet(), flic_read_packet(), fourxm_read_packet(), g723_1_read_packet(), gdigrab_read_packet(), grab_read_packet(), h264_handle_packet(), hevc_handle_packet(), iff_read_packet(), ilbc_read_packet(), interleave_new_audio_packet(), latm_parse_packet(), lavfi_read_packet(), load_ipmovie_packet(), lxf_read_packet(), matroska_parse_frame(), matroska_parse_rm_audio(), matroska_parse_webvtt(), matroska_read_header(), mmap_read_frame(), modplug_read_packet(), mpa_robust_parse_packet(), mpc_read_packet(), mpeg_parse_packet(), mpegts_raw_read_packet(), nut_read_packet(), nuv_packet(), ogg_read_packet(), pulse_read_packet(), qdm2_restore_block(), qt_rtp_parse_packet(), qtkit_read_packet(), read_frame(), read_packet(), read_packet_gme(), recode_subtitle(), return_stored_frame(), rm_assemble_video_frame(), rm_read_audio_stream_info(), roq_read_packet(), rtp_parse_packet_internal(), sbg_read_packet(), sdr2_read_packet(), seq_read_packet(), siff_read_packet(), smacker_read_packet(), store_packet(), str_read_packet(), supply_new_packets(), swf_read_packet(), videostream_cb(), vmd_read_packet(), vqf_read_packet(), wsaud_read_packet(), wv_read_packet(), xcbgrab_frame(), xiph_handle_packet(), and yop_read_packet().
Reduce packet size, correctly zeroing padding.
| pkt | packet |
| size | new size |
Definition at line 103 of file avpacket.c.
Referenced by adp_read_packet(), append_packet_chunked(), asf_parse_packet(), cdxl_read_packet(), cin_read_packet(), decode_frame(), encode_frame(), ff_raw_read_partial_packet(), fourxm_read_packet(), iff_read_packet(), libopus_encode(), mxf_decrypt_triplet(), mxf_get_d10_aes3_packet(), nuv_packet(), rsd_read_packet(), sdr2_read_packet(), swf_read_packet(), twolame_encode_frame(), and yop_read_packet().
| 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 111 of file avpacket.c.
Referenced by append_packet_chunked(), encode_callback(), encode_frame(), ff_subtitles_queue_insert(), and wv_read_packet().
Initialize a reference-counted packet from av_malloc()ed data.
| pkt | packet to be initialized. This function will set the data, size, buf and destruct fields, all others are left untouched. |
| data | Data allocated by av_malloc() to be used as packet data. If this function returns successfully, the data is owned by the underlying AVBuffer. The caller may not access the data through other means. |
| size | size of data in bytes, without the padding. I.e. the full buffer size is assumed to be size + FF_INPUT_BUFFER_PADDING_SIZE. |
Definition at line 144 of file avpacket.c.
Referenced by ff_rtp_finalize_packet(), and qt_rtp_parse_packet().
| int av_dup_packet | ( | AVPacket * | pkt | ) |
Definition at line 248 of file avpacket.c.
Referenced by av_read_frame(), avcodec_encode_audio2(), avcodec_encode_video2(), avformat_find_stream_info(), avpacket_queue_put(), ff_interleave_add_packet(), mkv_write_packet(), packet_queue_put(), parse_packet(), tee_write_packet(), worker(), and write_packet().
Copy packet, including contents.
Definition at line 265 of file avpacket.c.
Referenced by aiff_write_packet(), apng_write_packet(), ff_subtitles_queue_read_packet(), filter_packet(), flush_packet(), gif_write_packet(), read_thread(), tee_write_packet(), webp_write_packet(), and write_packet().
Copy packet side data.
Definition at line 223 of file avpacket.c.
Referenced by copy_packet_data(), and mkv_write_packet().
Free a packet.
| pkt | packet to free |
Definition at line 280 of file avpacket.c.
Referenced by adp_read_packet(), adx_read_packet(), aiff_write_trailer(), amr_read_packet(), ape_read_packet(), append_packet_chunked(), asf_parse_packet(), asf_read_header(), asf_read_picture(), asf_read_pts(), asf_reset_header(), asfrtp_parse_packet(), audio_encode_example(), audio_read_packet(), av_copy_packet_side_data(), av_interleaved_write_frame(), av_packet_merge_side_data(), av_write_trailer(), avcodec_decode_subtitle2(), avcodec_encode_audio2(), avcodec_encode_video2(), avi_read_close(), avpacket_queue_flush(), avs_read_video_packet(), cdxl_read_packet(), cin_read_packet(), copy_packet_data(), decode_audio_frame(), decode_frame(), decoder_decode_frame(), decoder_destroy(), dfa_read_packet(), dshow_read_close(), dss_723_1_read_packet(), dss_sp_read_packet(), dxa_read_packet(), ea_read_packet(), encode_audio_frame(), encode_frame(), encode_picture_ls(), estimate_timings_from_pts(), extract_mpeg4_header(), ff_free_stream(), ff_img_read_packet(), ff_load_image(), ff_raw_read_partial_packet(), ff_read_packet(), ff_rm_free_rmstream(), ff_spdif_read_packet(), ff_subtitles_queue_clean(), ffm_read_packet(), filter_packet(), flac_read_timestamp(), flic_read_packet(), flush(), flush_encoders(), flush_packet(), fourxm_read_packet(), free_packet_buffer(), free_pkt_fifo(), free_playlist_list(), g723_1_read_packet(), gsm_read_packet(), hls_read_packet(), hls_read_seek(), hnm_read_close(), http_prepare_data(), idcin_read_packet(), iff_read_packet(), ilbc_read_packet(), interleave_packet(), libopus_encode(), load_ipmovie_packet(), lxf_read_packet(), main(), matroska_clear_queue(), matroska_parse_frame(), mkv_write_packet(), mkv_write_trailer(), mmap_read_frame(), modplug_read_packet(), mov_write_eac3_tag(), mov_write_subtitle_end_packet(), movie_push_frame(), mp3_queue_flush(), mpa_robust_parse_packet(), mpc_read_packet(), mpc_read_seek(), mpegts_get_dts(), mpegts_raw_read_packet(), mpegts_read_packet(), mxf_interleave_get_packet(), nc_read_packet(), nsv_read_close(), nuv_packet(), ogg_read_packet(), packet_queue_flush(), packet_queue_put(), parse_packet(), process_input(), qt_rtp_parse_packet(), read_frame_internal(), read_interval_packets(), read_packet(), read_thread(), recode_subtitle(), redspark_read_packet(), rl2_read_packet(), rm_assemble_video_frame(), rm_read_packet(), rpl_read_packet(), rsd_read_packet(), run_test(), sap_fetch_packet(), sdr2_read_packet(), seek_frame_generic(), seek_subtitle(), siff_read_packet(), storeframe(), str_read_close(), str_read_packet(), swf_read_packet(), thp_read_packet(), vfw_read_close(), video_encode_example(), vivo_read_packet(), vmd_read_packet(), vqf_read_packet(), wc3_read_close(), write_frame(), write_packet(), write_trailer(), wv_read_packet(), xiph_handle_packet(), xvid_encode_frame(), yop_read_close(), yop_read_packet(), and yop_read_seek().
| uint8_t* av_packet_new_side_data | ( | AVPacket * | pkt, |
| enum AVPacketSideDataType | type, | ||
| int | size | ||
| ) |
Allocate new information of a packet.
| pkt | packet |
| type | side information type |
| size | side information size |
Definition at line 299 of file avpacket.c.
Referenced by asf_parse_packet(), av_packet_copy_props(), ff_add_param_change(), ff_mpv_encode_picture(), flac_encode_frame(), flv_read_packet(), gif_encode_frame(), gif_image_write_image(), idcin_read_packet(), lavfi_read_packet(), libopus_encode(), load_ipmovie_packet(), matroska_parse_frame(), matroska_parse_webvtt(), mov_read_packet(), ogg_read_packet(), process_input(), read_frame(), read_frame_internal(), read_sm_data(), srt_read_header(), storeframe(), swf_read_packet(), and x11grab_read_packet().
| int av_packet_shrink_side_data | ( | AVPacket * | pkt, |
| enum AVPacketSideDataType | type, | ||
| int | size | ||
| ) |
Shrink the already allocated side data buffer.
| pkt | packet |
| type | side information type |
| size | new side information size |
Definition at line 506 of file avpacket.c.
Referenced by ff_mpv_encode_picture().
| uint8_t* av_packet_get_side_data | ( | AVPacket * | pkt, |
| enum AVPacketSideDataType | type, | ||
| int * | size | ||
| ) |
Get side information from packet.
| pkt | packet |
| type | desired side information type |
| size | pointer for side information size to store (optional) |
Definition at line 324 of file avpacket.c.
Referenced by aac_decode_frame(), aac_decode_frame_int(), add_metadata_from_side_data(), apply_param_change(), avcodec_decode_audio4(), cinepak_decode_frame(), decode_frame(), decode_tag(), ff_init_buffer_info(), flac_write_packet(), flush_packet(), gif_write_packet(), h264_decode_frame(), idcin_decode_frame(), ipvideo_decode_frame(), mkv_write_block(), mkv_write_vtt_blocks(), msrle_decode_frame(), msvideo1_decode_frame(), process_input(), qtrle_decode_frame(), raw_decode(), read_frame_internal(), rtp_write_packet(), smc_decode_frame(), srt_decode_frame(), srt_write_packet(), and webvtt_write_packet().
| int av_packet_merge_side_data | ( | AVPacket * | pkt | ) |
Definition at line 364 of file avpacket.c.
Referenced by avcodec_encode_video2(), read_frame_internal(), and write_packet().
| int av_packet_split_side_data | ( | AVPacket * | pkt | ) |
Definition at line 404 of file avpacket.c.
Referenced by avcodec_decode_audio4(), avcodec_decode_subtitle2(), avcodec_decode_video2(), process_input(), write_frame(), and write_packet().
| const char* av_packet_side_data_name | ( | enum AVPacketSideDataType | type | ) |
Definition at line 339 of file avpacket.c.
Referenced by show_packet(), and show_stream().
| uint8_t* av_packet_pack_dictionary | ( | AVDictionary * | dict, |
| int * | size | ||
| ) |
Pack a dictionary for use in side_data.
| dict | The dictionary to pack. |
| size | pointer to store the size of the returned data |
Definition at line 446 of file avpacket.c.
Referenced by vorbis_update_metadata().
| int av_packet_unpack_dictionary | ( | const uint8_t * | data, |
| int | size, | ||
| AVDictionary ** | dict | ||
| ) |
Unpack a dictionary from side_data.
| data | data from side_data |
| size | size of the data |
| dict | the metadata storage dictionary |
Definition at line 481 of file avpacket.c.
Referenced by add_metadata_from_side_data().
Convenience function to free all the side data stored.
All the other fields stay untouched.
| pkt | packet |
Definition at line 271 of file avpacket.c.
Referenced by av_free_packet(), av_packet_copy_props(), av_packet_ref(), av_packet_unref(), avcodec_decode_subtitle2(), avcodec_decode_video2(), and avcodec_encode_audio().
Setup a new reference to the data described by a given packet.
If src is reference-counted, setup dst as a new reference to the buffer in src. Otherwise allocate a new buffer in dst and copy the data from src into it.
All the other fields are copied from src.
| dst | Destination packet |
| src | Source packet |
Definition at line 559 of file avpacket.c.
Referenced by qsv_decode_frame(), and submit_packet().
Wipe the packet.
Unreference the buffer referenced by the packet and reset the remaining packet fields to their default values.
| pkt | The packet to be unreferenced. |
Definition at line 550 of file avpacket.c.
Referenced by av_interleaved_write_frame(), avformat_find_stream_info(), avisynth_read_packet_audio(), avisynth_read_packet_video(), concat_read_packet(), ff_frame_thread_free(), filter_packet(), lavfi_read_packet(), main(), qsv_clear_buffers(), qsv_decode_frame(), and submit_packet().
Move every field in src to dst and reset src.
| src | Source packet, will be reset |
| dst | Destination packet |
Definition at line 588 of file avpacket.c.
Copy only "properties" fields from src to dst.
Properties for the purpose of this function are all the fields beside those related to the packet data (buf, data, size)
| dst | Destination packet |
| src | Source packet |
Definition at line 522 of file avpacket.c.
Referenced by av_packet_ref().
| void av_packet_rescale_ts | ( | AVPacket * | pkt, |
| AVRational | tb_src, | ||
| AVRational | tb_dst | ||
| ) |
Convert valid timing fields (timestamps / durations) in a packet from one timebase to another.
Timestamps with unknown values (AV_NOPTS_VALUE) will be ignored.
| pkt | packet on which the conversion will be performed |
| tb_src | source timebase, in which the timing fields in pkt are expressed |
| tb_dst | destination timebase, to which the timing fields will be converted |
Definition at line 594 of file avpacket.c.
Referenced by do_audio_out(), do_video_out(), encode_write_frame(), flush_encoders(), main(), write_frame(), and write_video_frame().
1.8.6
