/usr/include/gpac/media_tools.h is in libgpac-dev 0.5.2-426-gc5ad4e4+dfsg5-1build1.
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* GPAC - Multimedia Framework C SDK
*
* Authors: Jean Le Feuvre
* Copyright (c) Telecom ParisTech 2000-2012
* All rights reserved
*
* This file is part of GPAC / Authoring Tools sub-project
*
* GPAC is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* GPAC is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef _GF_MEDIA_H_
#define _GF_MEDIA_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <gpac/isomedia.h>
#include <gpac/avparse.h>
#include <gpac/config_file.h>
/*computes file hash. If file is ISO-based, computre hash according to OMA (P)DCF (without MutableDRMInformation box)*/
GF_Err gf_media_get_file_hash(const char *file, u8 hash[20]);
#ifndef GPAC_DISABLE_ISOM
/*creates (if needed) a GF_ESD for the given track - THIS IS RESERVED for local playback
only, since the OTI used when emulated is not standard...*/
GF_ESD *gf_media_map_esd(GF_ISOFile *mp4, u32 track);
/*!
* \brief Get RFC 6381 description for @track from @movie.
* \parama szCodec a pointer to an already allocated string.
*/
GF_Err gf_media_get_rfc_6381_codec_name(GF_ISOFile *movie, u32 track, char *szCodec, Bool force_inband_xps, Bool force_sbr);
#endif
#ifndef GPAC_DISABLE_ISOM_WRITE
/*changes pixel aspect ratio for visual tracks if supported. Negative values remove any PAR info*/
GF_Err gf_media_change_par(GF_ISOFile *file, u32 track, s32 ar_num, s32 ar_den);
GF_Err gf_media_remove_non_rap(GF_ISOFile *file, u32 track);
#endif
#define GF_IMPORT_DEFAULT_FPS 25.0
#ifndef GPAC_DISABLE_MEDIA_IMPORT
/*
track importers
All these can import a file into a dedicated track. If esd is NULL the track is blindly added
otherwise it is added with the requested ESID if non-0, otherwise the new trackID is stored in ESID
if use_data_ref is set, data is only referenced in the file
if duration is not 0, only the first duration seconds are imported
NOTE: if an ESD is specified, its decoderSpecificInfo is also updated
*/
/*track importer flags*/
enum
{
/*references data rather than copy, whenever possible*/
GF_IMPORT_USE_DATAREF = 1,
/*for AVI video: imports at constant FPS (eg imports N-Vops due to encoder drops)*/
GF_IMPORT_NO_FRAME_DROP = 1<<1,
/*for CMP ASP only: forces treating the input as packed bitsream and discards all n-vops*/
GF_IMPORT_FORCE_PACKED = 1<<2,
/*for AAC audio: forces SBR mode with implicit signaling (backward compatible)*/
GF_IMPORT_SBR_IMPLICIT = 1<<3,
/*for AAC audio: forces SBR mode with explicit signaling (non-backward compatible).
Will override GF_IMPORT_SBR_IMPLICIT flag when set*/
GF_IMPORT_SBR_EXPLICIT = 1<<4,
/*forces MPEG-4 import - some 3GP2 streams have both native IsoMedia sample description and MPEG-4 one possible*/
GF_IMPORT_FORCE_MPEG4 = 1<<5,
/*special flag for text import at run time (never set on probe), indicates to leave the text box empty
so that we dynamically adapt to display size*/
GF_IMPORT_SKIP_TXT_BOX = 1<<6,
/*indicates to keep unknown tracks from .MOV/.IsoMedia files*/
GF_IMPORT_KEEP_ALL_TRACKS = 1<<7,
/*uses compact size in .MOV/.IsoMedia files*/
GF_IMPORT_USE_COMPACT_SIZE = 1<<8,
/*don't add a final empty sample when importing text tracks from srt*/
GF_IMPORT_NO_TEXT_FLUSH = 1<<9,
/*for SVC or SHVC video: forces explicit SVC / SHVC signaling */
GF_IMPORT_SVC_EXPLICIT = 1<<10,
/*for SVC / SHVC video: removes all SVC / SHVC extensions*/
GF_IMPORT_SVC_NONE = 1<<11,
/*for AAC audio: forces PS mode with implicit signaling (backward compatible)*/
GF_IMPORT_PS_IMPLICIT = 1<<12,
/*for AAC audio: forces PS mode with explicit signaling (non-backward compatible).
Will override GF_IMPORT_PS_IMPLICIT flag when set*/
GF_IMPORT_PS_EXPLICIT = 1<<13,
/* oversampled SBR */
GF_IMPORT_OVSBR = 1<<14,
/* set subsample information with SVC*/
GF_IMPORT_SET_SUBSAMPLES = 1<<15,
/* force to mark non-IDR frmaes with sync data (I slices,) to be marked as sync points points
THE RESULTING FILE IS NOT COMPLIANT*/
GF_IMPORT_FORCE_SYNC = 1<<16,
/*keep trailing 0 bytes in AU payloads when any*/
GF_IMPORT_KEEP_TRAILING = 1<<17,
/*forces inband parameter sets*/
GF_IMPORT_FORCE_XPS_INBAND = 1<<18,
/*do not compute edit list for B-frames video tracks*/
GF_IMPORT_NO_EDIT_LIST = 1<<19,
/*when set, only updates tracks info and return*/
GF_IMPORT_PROBE_ONLY = 1<<20,
/*only set when probing, signals several frames per sample possible*/
GF_IMPORT_3GPP_AGGREGATION = 1<<21,
/*only set when probing, signals video FPS overridable*/
GF_IMPORT_OVERRIDE_FPS = 1<<22,
/*only set when probing, signals duration not usable*/
GF_IMPORT_NO_DURATION = 1<<23,
/*when set IP packets found in MPE sections will be sent to the local network */
GF_IMPORT_MPE_DEMUX = 1<<24,
/*when set by user during import, will abort*/
GF_IMPORT_DO_ABORT = 1<<31
};
#define GF_IMPORT_AUTO_FPS 10000.0
#define GF_IMPORT_MAX_TRACKS 100
struct __track_video_info
{
u32 width, height, par;
Double FPS;
};
struct __track_audio_info
{
u32 sample_rate, nb_channels;
};
struct __track_import_info
{
u32 track_num;
/*track type (GF_ISOM_MEDIA_****)*/
u32 type;
/*media type ('MPG1', 'MPG2', ISO 4CC, AVI 4CC)*/
u32 media_type;
/*possible import flags*/
u32 flags;
/*media format info*/
struct __track_video_info video_info;
struct __track_audio_info audio_info;
char szCodecProfile[20];
u32 lang;
/*for MPEG4 on MPEG-2 TS: mpeg4 ES-ID*/
u32 mpeg4_es_id;
/*for MPEG2 TS: program number*/
u16 prog_num;
};
struct __program_import_info
{
u32 number;
char name[40];
};
/*track dumper*/
typedef struct __track_import
{
GF_ISOFile *dest;
/*media to import:
MP4/ISO media: trackID
AVI files:
0: first video and first audio,
1: video track
2->any: audio track(s)
MPEG-PS files with N video streams:
0: first video and first audio
1->N: video track
N+1->any: audio track
TrackNums can be obtain with probing
*/
u32 trackID;
/*media source - selects importer type based on extension*/
char *in_name;
/*import duration if any*/
u32 duration;
/*importer flags*/
u32 flags;
/*importer swf flags*/
u32 swf_flags;
Float swf_flatten_angle;
/*if non 0, force video FPS (CMP, AVI, OGG, H264) - also used by SUB import*/
Double video_fps;
/*optional ESD*/
GF_ESD *esd;
/*optional format indication for media source (used in IM1)*/
char *streamFormat;
/*frame per sample cumulation (3GP media only) - MAX 15, ignored in data ref*/
u32 frames_per_sample;
/*track ID of imported media in destination file*/
u32 final_trackID;
/*optional format indication for media source (used in IM1)*/
char *force_ext;
/*for MP4 import only*/
GF_ISOFile *orig;
/*for text import*/
u32 fontSize;
char *fontName;
u32 text_track_width, text_track_height, text_width, text_height;
s32 text_x, text_y;
/*Initial offset of the first AU to import*/
Double initial_time_offset;
/*number of tracks after probing - may be set to 0, in which case no track
selection can be performed. It may also be inaccurate if probing doesn't
detect all available tracks (cf ogg import)*/
u32 nb_tracks;
/*track info after probing (GF_IMPORT_PROBE_ONLY set).*/
struct __track_import_info tk_info[GF_IMPORT_MAX_TRACKS];
u64 probe_duration;
/*for MPEG-TS and similar: program names*/
u32 nb_progs;
struct __program_import_info pg_info[GF_IMPORT_MAX_TRACKS];
GF_Err last_error;
} GF_MediaImporter;
GF_Err gf_media_import(GF_MediaImporter *importer);
/*adds chapter info contained in file - import_fps is optional (most formats don't use it), defaults to 25*/
GF_Err gf_media_import_chapters(GF_ISOFile *file, char *chap_file, Double import_fps);
/*make the file ISMA compliant: creates ISMA BIFS / OD tracks if needed, and update audio/video IDs
the file should not contain more than one audio and one video track
@keepImage: if set, generates system info if image is found - only used for image imports
*/
GF_Err gf_media_make_isma(GF_ISOFile *mp4file, Bool keepESIDs, Bool keepImage, Bool no_ocr);
/*make the file 3GP compliant && sets profile
*/
GF_Err gf_media_make_3gpp(GF_ISOFile *mp4file);
/*make the file playable on a PSP
*/
GF_Err gf_media_make_psp(GF_ISOFile *mp4file);
/*changes the profile (if not 0) and level (if not 0) indication of the media - only AVC/H264 supported for now*/
GF_Err gf_media_change_pl(GF_ISOFile *file, u32 track, u32 profile, u32 level);
/*rewrite AVC samples if nalu size_length has to be changed*/
GF_Err gf_media_avc_rewrite_samples(GF_ISOFile *file, u32 track, u32 prev_size_in_bits, u32 new_size_in_bits);
/* Split SVC layers */
GF_Err gf_media_split_svc(GF_ISOFile *file, u32 track, Bool splitAll);
/* Merge SVC layers*/
GF_Err gf_media_merge_svc(GF_ISOFile *file, u32 track, Bool mergeAll);
/* Split SHVC layers */
GF_Err gf_media_split_shvc(GF_ISOFile *file, u32 track, Bool splitAll, Bool use_extractors);
GF_Err gf_media_split_hevc_tiles(GF_ISOFile *file);
#endif /*GPAC_DISABLE_MEDIA_IMPORT*/
typedef struct
{
char *file_name;
char *representationID;
char *periodID;
u32 nb_baseURL;
char **baseURL;
char *xlink;
char *role;
u32 nb_rep_descs;
char **rep_descs;
u32 nb_p_descs;
char **p_descs;
u32 nb_as_descs;
char **as_descs;
u32 nb_as_c_descs;
char **as_c_descs;
u32 bandwidth;
Double period_duration;
} GF_DashSegmenterInput;
typedef enum
{
GF_DASH_PROFILE_FULL = 0,
GF_DASH_PROFILE_LIVE, /*live for ISOFF, SIMPLE for M2TS*/
GF_DASH_PROFILE_ONDEMAND,
GF_DASH_PROFILE_MAIN,
/* industry profiles */
GF_DASH_PROFILE_HBBTV_1_5_ISOBMF_LIVE,
GF_DASH_PROFILE_AVC264_LIVE,
GF_DASH_PROFILE_AVC264_ONDEMAND,
/*internal use only*/
GF_DASH_PROFILE_UNKNOWN
} GF_DashProfile;
typedef enum
{
GF_DASH_BSMODE_DEFAULT, //=inband for live profile and none for onDemand
GF_DASH_BSMODE_NONE,
GF_DASH_BSMODE_INBAND,
GF_DASH_BSMODE_MERGED,
GF_DASH_BSMODE_MULTIPLE_ENTRIES,
GF_DASH_BSMODE_SINGLE
} GF_DashSwitchingMode;
typedef enum
{
GF_DASH_STATIC = 0,
GF_DASH_DYNAMIC,
//can only be used when DASH segmenter context is used, will close the period
GF_DASH_DYNAMIC_LAST,
GF_DASH_DYNAMIC_DEBUG,
} GF_DashDynamicMode;
GF_Err gf_dasher_segment_files(const char *mpd_name, GF_DashSegmenterInput *inputs, u32 nb_inputs, GF_DashProfile profile,
const char *mpd_title, const char *mpd_source, const char *mpd_copyright,
const char *mpd_moreInfoURL, const char **mpd_base_urls, u32 nb_mpd_base_urls,
u32 use_url_template, Bool use_segment_timeline, Bool single_segment, Bool single_file, GF_DashSwitchingMode bitstream_switching_mode,
Bool segments_start_with_rap, Double dash_duration_sec, char *seg_rad_name, char *seg_ext, u32 segment_marker_4cc,
Double frag_duration_sec, s32 subsegs_per_sidx, Bool daisy_chain_sidx, Bool fragments_start_with_rap, const char *tmp_dir,
GF_Config *dash_ctx, GF_DashDynamicMode dash_mode, Double mpd_update_time, u32 time_shift_depth, Double subduration, Double min_buffer,
s32 ast_offset_ms, u32 dash_scale, Bool fragments_in_memory, u32 initial_moof_sn, u64 initial_tfdt, Bool no_fragments_defaults,
Bool pssh_moof, Bool samplegroups_in_traf, Bool single_traf_per_moof, Double mpd_live_duration, Bool insert_utc, Bool real_time, const char *dash_profile_extension);
/*returns time to wait until end of currently generated segments*/
u32 gf_dasher_next_update_time(GF_Config *dash_ctx, Double mpd_update_time);
#ifndef GPAC_DISABLE_ISOM_WRITE
#ifndef GPAC_DISABLE_ISOM_FRAGMENTS
/*save file as fragmented movie*/
GF_Err gf_media_fragment_file(GF_ISOFile *input, const char *output_file, Double max_duration_sec);
#endif
#endif
#ifndef GPAC_DISABLE_MEDIA_EXPORT
enum
{
/*track dumper types are formatted as flags for conveniency for
authoring tools, but never used as a OR'ed set*/
/*native format (JPG, PNG, MP3, etc) if supported*/
GF_EXPORT_NATIVE = GF_TRUE,
/*raw samples (including hint tracks for rtp)*/
GF_EXPORT_RAW_SAMPLES = (1<<1),
/*NHNT format (any MPEG-4 media)*/
GF_EXPORT_NHNT = (1<<2),
/*AVI (MPEG4 video and AVC tracks only)*/
GF_EXPORT_AVI = (1<<3),
/*MP4 (all except OD)*/
GF_EXPORT_MP4 = (1<<4),
/*AVI->RAW to dump video (trackID=1) or audio (trackID>=2)*/
GF_EXPORT_AVI_NATIVE = (1<<5),
/*NHML format (any media)*/
GF_EXPORT_NHML = (1<<6),
/*SAF format*/
GF_EXPORT_SAF = (1<<7),
/*WebVTT metadata format (any media)*/
GF_EXPORT_WEBVTT_META = (1<<8),
/*WebVTT metadata format: media data will be embedded in webvtt*/
GF_EXPORT_WEBVTT_META_EMBEDDED = (1<<9),
/* Experimental Streaming Instructions */
GF_EXPORT_SIX = (1<<14),
/*following ones are real flags*/
/*
for MP4 extraction, indicates track should be added to dest file if any
for raw extraction, indicates data shall be appended at the end of output file if present
*/
GF_EXPORT_MERGE = (1<<10),
/*indicates QCP file format possible as well as native (EVRC and SMV audio only)*/
GF_EXPORT_USE_QCP = (1<<11),
/*indicates full NHML dump*/
GF_EXPORT_NHML_FULL = (1<<11),
/**/
GF_EXPORT_SVC_LAYER = (1<<12),
/* Don't merge identical cues in consecutive samples */
GF_EXPORT_WEBVTT_NOMERGE = (1<<13),
/*ony probes extraction format*/
GF_EXPORT_PROBE_ONLY = (1<<30),
/*when set by user during export, will abort*/
GF_EXPORT_DO_ABORT = (1<<31),
};
/*track dumper*/
typedef struct __track_exporter
{
GF_ISOFile *file;
u32 trackID;
/*sample number to export for GF_EXPORT_RAW_SAMPLES only*/
u32 sample_num;
/*out name WITHOUT extension*/
char *out_name;
/*dump type*/
u32 flags;
/*non-IsoMedia file (AVI)*/
char *in_name;
} GF_MediaExporter;
/*if error returns same value as error signaled in message*/
GF_Err gf_media_export(GF_MediaExporter *dump);
#endif /*GPAC_DISABLE_MEDIA_EXPORT*/
#ifndef GPAC_DISABLE_ISOM_HINTING
/*
RTP IsoMedia file hinting
*/
typedef struct __tag_isom_hinter GF_RTPHinter;
GF_RTPHinter *gf_hinter_track_new(GF_ISOFile *file, u32 TrackNum,
u32 Path_MTU, u32 max_ptime, u32 default_rtp_rate, u32 hint_flags, u8 PayloadID,
Bool copy_media, u32 InterleaveGroupID, u8 InterleaveGroupPriority, GF_Err *e);
/*delete the track hinter*/
void gf_hinter_track_del(GF_RTPHinter *tkHinter);
/*hints all samples in the media track*/
GF_Err gf_hinter_track_process(GF_RTPHinter *tkHint);
/*returns media bandwidth in kbps*/
u32 gf_hinter_track_get_bandwidth(GF_RTPHinter *tkHinter);
/*retrieves hinter flags*/
u32 gf_hinter_track_get_flags(GF_RTPHinter *tkHinter);
/*retrieves rtp payload name
@payloadName: static buffer for retrieval, minimum 30 bytes
*/
void gf_hinter_track_get_payload_name(GF_RTPHinter *tkHint, char *payloadName);
/*finalizes hinting process for the track (setup flags, write SDP for RTP, ...)
@AddSystemInfo: if non-0, systems info are duplicated in the SDP (decoder cfg, PL IDs ..)
*/
GF_Err gf_hinter_track_finalize(GF_RTPHinter *tkHint, Bool AddSystemInfo);
/*SDP IOD flag*/
enum
{
/*no IOD included*/
GF_SDP_IOD_NONE = 0,
/*base64 encoding of the regular MPEG-4 IOD*/
GF_SDP_IOD_REGULAR,
/*base64 encoding of IOD containing BIFS and OD tracks (one AU only) - this is used for ISMA 1.0 profiles
note that the "hinted" file will loose all systems info*/
GF_SDP_IOD_ISMA,
/*same as ISMA but removes all clock references from IOD*/
GF_SDP_IOD_ISMA_STRICT,
};
/*finalizes hinting process for the file (setup flags, write SDP for RTP, ...)
@IOD_Profile: see above
@bandwidth: total bandwidth in kbps of all hinted tracks, 0 means no bandwidth info at session level
*/
GF_Err gf_hinter_finalize(GF_ISOFile *file, u32 IOD_Profile, u32 bandwidth);
/*returns TRUE if the encoded data fits in an ESD url - streamType is the systems stream type needed to
signal data mime-type (OD, BIFS or any) */
Bool gf_hinter_can_embbed_data(char *data, u32 data_size, u32 streamType);
#endif /*GPAC_DISABLE_ISOM_HINTING*/
/*SAF Multiplexer object. The multiplexer supports concurencial (multi-threaded) access*/
typedef struct __saf_muxer GF_SAFMuxer;
/*SAF Multiplexer constructor*/
GF_SAFMuxer *gf_saf_mux_new();
/*SAF Multiplexer destructor*/
void gf_saf_mux_del(GF_SAFMuxer *mux);
/*adds a new stream in the SAF multiplex*/
GF_Err gf_saf_mux_stream_add(GF_SAFMuxer *mux, u32 stream_id, u32 ts_res, u32 buffersize_db, u8 stream_type, u8 object_type, char *mime_type, char *dsi, u32 dsi_len, char *remote_url);
/*removes a stream from the SAF multiplex*/
GF_Err gf_saf_mux_stream_rem(GF_SAFMuxer *mux, u32 stream_id);
/*adds an AU to the given stream. !!AU data will be freed by the multiplexer!!
AUs are not reinterleaved based on their CTS, in order to enable audio interleaving
*/
GF_Err gf_saf_mux_add_au(GF_SAFMuxer *mux, u32 stream_id, u32 CTS, char *data, u32 data_len, Bool is_rap);
/*gets the content of the multiplexer for the given time.
if force_end_of_session is set, this flushes the SAF Session - no more operations will be allowed on the muxer*/
GF_Err gf_saf_mux_for_time(GF_SAFMuxer *mux, u32 time_ms, Bool force_end_of_session, char **out_data, u32 *out_size);
/*reduces input width/height to common aspect ration num/denum values*/
void gf_media_reduce_aspect_ratio(u32 *width, u32 *height);
/*reduces input FPS to a more compact value (eg 25000/1000 -> 25/1)*/
void gf_media_get_reduced_frame_rate(u32 *timescale, u32 *sample_dur);
#ifdef __cplusplus
}
#endif
#endif /*_GF_MEDIA_H_*/
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