resolve #1492 (corrected)

Fix typo in README.md

resolve #1492 (backport from 014cb59)

Fix typo in README

the write() function of a heif_writer may now return a NULL message w…

the write() function of a heif_writer may now return a NULL message w…

fix error message return value in fuzzer (#1493)

add more track reference types defined in HEIF

heif-enc: option to set sequence fps directly

heif-view: add options to show data in metadata track while video is …

heif-enc: fix encoding image sequences with filenames in other direct…

fix compilation with experimental features disabled

documentation for track references API

heif_enc_seq test: set some JSON metadata instead of raw bytes

add API to read sequence track references

write metadata sequence samples through heif_raw_sequence_sample

cleanup sequences API

heif-view: take decoding time out of frame delay

fix int type when reading float values

process SDL window close event

heif-view: add option to show track metadata

heif-view: add options to show SAI and frame duration

add API heif_track_get_timescale()

heif-view: add --speedup option

wait for absolute timestamps to prevent time drift

simply use SDL_Delay() instead of OS specific functions

add command-line tool heif-view to show image sequences

check heif_security_limits input version before accessing v2 fields

check available memory and use mlock() (on Linux) to check if enough …

check available memory and use mlock() (on Linux) to check if enough …