Browser-native video tips, FFmpeg internals, and Clapr product updates.
Meta's Graph API spec lists MOV and MP4 alike. Here are the two container conditions that really decide whether a Reel uploads, and how to meet them.
Audacity's manual recommends CBR over VBR for podcasts and lists exact bit rates. Here are those settings, plus the export dialog steps that go with them.
CapCut Mobile cannot import .srt or .txt files as of 2026. Here is the official route: import on Desktop or Web, then view and edit the captions on your phone.
GIF is in the Deliver page Format menu if your system lists it. The click path, the official 256-colour ceiling, and what "constant duration" limits.
iMovie exports MP4 natively — Apple documents the exact steps. Here is the Mac workflow, the iPhone restriction nobody mentions, and the one-second shortcut Apple endorses for H.264 files.
Apple sets slo-mo to 1080 HD at 240 fps on the back camera and 120 fps on the front. Here is where to change it, and what each rate costs you.
Loom's caption download is SRT. Web players want WebVTT. Here is how to get the file out of Loom, convert it, and serve it the way the spec requires.
Animated GIF is in Premiere's Match Source list, and the Transparency setting has exactly three values. Here is the export path and what each one does.
VideoLAN's own how-to says extracting audio with no re-encoding costs no quality. Here is the documented command, what mux=raw does, and where it fails.
WordPress's Video block transforms into a Gif variation, but the docs never say it makes a .gif file. Here is the route that ends in a real GIF.
CapCut's caption export lists SRT and TXT, not VTT. The exact export steps, what CapCut refuses to export, and how to convert SRT to VTT in your browser.
Set Format to MKV on the Deliver page, then pick a codec your platform can actually encode. What Blackmagic's manual and codec tables each say about mkv.
Resolve has no Instagram preset. Here are the TikTok preset's documented parameters, plus the one default Blackmagic's own manual tells you to change.
Discord lists MOV as an accepted file type. Here is which upload ceiling applies to you, and how to shrink the file before Discord measures it.
Export a WAV out of Premiere using Adobe's own export settings, and why raising the sample rate on export does not improve quality.
Slack clips stop at five minutes; file uploads stop at 1GB. Which path to use for a long video, how to get under the cap, and why mobile can't download it.
Telegram's send-as-file path is a documented protocol flag, not folklore. What the official docs say about video quality — and what they never say.
WordPress documents three preload settings for the Video block and four for the Audio block. Here is what each one does, and which to choose.
X publishes four different video bitrate numbers — 5,000 kbps, 2048K, 25 Mbps and 5-8 mbps. Here is where each one comes from and which applies to your upload.
Where CapCut's bitrate setting lives, what Custom, Higher and Lower actually mean, and why no specific Mbps number you find online comes from CapCut.
DaVinci Resolve ships no chat-app render preset. Here is the Custom setup — MP4, H.264, Restrict to X Kb/s — that gets a timeline under a Discord cap.
Loom exports captions as an SRT file, but only certain plans and roles can download it. Here is the exact click path, who qualifies, and what to do next.
Export a sequence as an mp3 from Premiere Pro: the format route Adobe documents, the audio settings that matter, and the switch behind silent exports.
Shotcut's Subtitle Burn In filter only works on the Timeline Output. Here is the exact order of steps, the Typewriter defaults, and the export gotcha.
Teams meeting recordings are .mp4 files. Here is the one official page that says so, where the file lands, and what the docs leave unstated.
VLC can compress video, but only four documented settings actually lower the bitrate. Here is what VideoLAN's own docs say each one does, and how to test it.
VideoPress generates a subtitle track automatically for every video you upload. Here is when it appears, what editing does to it, and how to switch it off.
Zoom converts computer recordings to MP4 when the meeting ends. How to convert one by hand, where the files are saved, and what Error Code 614 means.
Zoom saves cloud recording transcripts as VTT and documents no SRT export. How to download the VTT, convert it to SRT in your browser, and what gets lost.
CapCut's help center never documents GIF export. Here is what the official pages actually say, and a browser route from a CapCut export to a finished GIF.
Resolve has a Bypass re-encode checkbox. Here is the official list of what switches it off, and which codecs are allowed to pass through in the first place.
Apple lists HD, 4K, HD (PAL) and 4K (PAL) plus 24-120 fps, but the options depend on your model. What iPhone 17 and 17 Pro actually record.
Apple documents a share sheet option called Current that prevents a file format conversion. Here is where it lives and what each choice really does.
MOV is on Loom's official container list, yet MOV uploads still get rejected. The plan requirement, the three thresholds, and the export Loom recommends.
OBS converts recordings to MP4 in two places — File → Remux Recordings and an auto-remux switch. Here is where both live, and what the docs never say.
Export lossless FLAC audio from Shotcut using the built-in audio preset, plus two release-note changes that explain odd containers and dead scrub bars.
Slack clips stop at five minutes. Upload the same recording as an ordinary file and the documented rule is 1GB, with no duration cap stated. Here is how.
WordPress publishes four subtitle format lists and they disagree. Work out which one applies to your upload path, then convert your file to match.
When a video goes over Gmail's limit, Gmail swaps it for a Drive link. Here is what that changes about who can open it, and how to keep it a real attachment.
Loom downloads always arrive as .MP4. Here is the official route, who is allowed to download, and which Loom features do not survive the export.
Shotcut's own FAQ names MP3 as an audio-extraction preset. Here is the export route step by step, plus the panel default that changed in 2025.
Teams captions never reach the file you download. Here is the route: pull the .vtt transcript, then render it into the picture yourself.
WordPress gives four different official answers about subtitle formats. Here is which one applies to your site, and the exact steps to attach a caption track.
Zoom cloud recordings cannot be embedded on websites. Here is how to find the MP4 behind a Zoom recording and turn one short moment into a GIF.
DaVinci Resolve's Audio Only preset defaults to MXF OP-Atom, Linear PCM, 16-bit. Here is what every default means and how to change it before you render.
Shotcut can turn a MOV into an MP4, but never losslessly. Here is the official export route, what the Default preset gives you, and what to check first.
Teams has an official audio-only recording option buried two menus deep. Here are Microsoft's exact steps, who is allowed to use it, and what it produces.
Shift subtitles in VLC with g and h in 50 ms steps, set an exact delay, use the three-key advance sync, and learn what units --sub-delay really takes.
WordPress.com's recommended video settings in full — 1080p, h.264, 8 or 12 mbps, AAC 160kbps, Fast Start — plus the two limits most guides drop.
CapCut lets you lower Resolution, Frame Rate and Bit rate on export, but it never promises an exact MB. Here is the official path, plus a way to hit a number.
HandBrake renamed its Discord presets to Social in 1.6.0. Here is the official replacement table, which Social 25 MB preset to pick, and the catch in the name.
Apple says imported HEIF or HEVC media might be converted to JPEG or H.264 — not will. Here is where Keep Originals lives and what it does not cover.
Apple lists GIF as a format iCloud Photos stores, but the share and export panels offer other choices. Here is the route that works, step by step.
Loom's Animated Thumbnail turns the first few seconds of a recording into a looping GIF cover. How to enable it, embed it, and avoid the thumbnail-code trap.
Shotcut export settings for Instagram and TikTok: what the official User Guide specifies for web delivery, and where its guidance stops.
How to export MP3 from DaVinci Resolve's Deliver page, why the manual's own Audio Only section leaves MP3 off the list, and why Resolve only writes CBR.
Apple's editing, sharing and export pages all end in a video file. Here is how to get the untouched clip off your iPhone and pull the audio out of it.
Loom suggests an embedded GIF thumbnail for email, not a player. Here is the GIF route, the Apple Mail setting, and when an MP4 attachment works.
Premiere Pro burns captions from one dropdown in Export mode. Here is the exact path, Adobe's wording for all four options, and the channel rules.
Shotcut has no email preset and no size formula. Here are the export knobs its own documentation describes, and the loop that gets you under a cap.
Teams' video player accepts WebVTT caption uploads only. The official upload route, the 4MB ceiling, and what Microsoft strips out of your file.
X publishes two different RTMP encoder spec sheets for live video — 12 Mbps on one page, 9 Mbps on the other. Here is what each one says and how to set up OBS.
Split one recording into separate files with labels: the real menu path, the 00- and 01- numbering rules, and the metadata bug Audacity admits to.
CapCut's help center never documents an audio-only export. Here is what it does document, how to check your export panel, and the route that always works.
DaVinci Resolve has two documented subtitle export paths and they do not offer the same formats. Here is which one gives you SRT, WebVTT, IMSC1 or DFXP.
Gmail's 25 MB cap is judged on your total attachment size, not per file. Extracting the audio keeps the message inside Gmail's rules instead of Drive's.
Premiere Pro can target a file size directly. Here is the route Adobe documents, what Maximum File Size really promises, and why bitrate tables are guesses.
Shotcut imports SRT, VTT, ASS and SSA. The official guide warns subtitles land at the cursor position — here is the import order that keeps timing right.
X's Media Studio allows one subtitle file per video and hides it unless the viewer's language matches. Here is how to burn captions in instead.
Audacity's FLAC export offers levels 0-8. The manual says level 8 is rarely more than a few percent smaller, but three or four times slower. Here's the call.
Resolve burns the currently selected subtitle track, not every track. Here is the exact Deliver page path, all four Format options, and the MP4 caveat.
Gmail caps personal accounts at 25 MB of total attachments. Here is how to decide whether converting your WAV to MP3 fits, and what to do if it still does not.
Adobe documents four cases where Premiere's Maximum File Size misses. Here is how to set the option and what to check before trusting the estimate.
Use Previews exports from render files you already made instead of re-rendering. Includes the Media Encoder step Adobe says you must repeat per job.
How to build a custom export preset in Shotcut, what to delete in the preset text box, where the preset file lives, and why Shotcut must restart to see it.
Shotcut imports VTT but exports subtitles only as SRT. Here is how to export the subtitle track and convert that SRT to WebVTT in your browser.
Teams offers exactly two transcript download formats. Who is allowed to download one, where it lives after the meeting, and how to get an SRT out of it.
WordPress.com's podcast docs say .mp3 works everywhere, .m4a fails on Spotify, and .ogg and .wav are rejected. Here is how to get MP3 out of a video.
HandBrake burns exactly one subtitle track into an MP4, refuses to pass PGS through, and flattens SSA animation. Here is the workflow and the three limits.
The official VLC page for MP3 extraction is still a TODO stub. Here is the only documented acodec=mp3 command and what each flag does.