Name: Convert M4V to SWF
Brand: XConvert

CONVERT

VIDEO_EXTENSIONS_GROUP_SWF

Merge strategy

`Select <b>Merge images</b> to combine all uploaded files into a single video. Use <b>Video per image</b> to create a separate video for each individual file.`

Merge images

Video per image

Image Duration

IMAGE_DURATION_SELECTION

Duration

Background Color

VIDEO_BACKGROUND_COLOR_SELECTION

Video Codec

DivX

Flash Video (v2)

Flash Video

H.261 H.263+

H.263

H.264

H.265 HEVC

HuffYUV

MJPEG

MPEG-1

MPEG-2

MPEG-4

MS MPEG-4

RealVideo 1.0

RealVideo 2.0

Theora

WMV 1

WMV 2

Xvid

Audio Codec

ADPCM_SWF

AMR Narrow Band

AMR Wide Band

DTS (DCA)

EAC3

FLAC

Opus

PCM A-law

PCM mu-law

PCM 16-bit Big Endian

PCM 16-bit Little Endian

PCM 24-bit Little Endian

PCM 32-bit Little Endian

RealAudio 1.0

Speex

True Audio (TTA)

Vorbis

WavPack

WMA v1

WMA v2

File Compression

`<div class="d-flex align-items-center">    <i class="bi bi-exclamation-triangle-fill fs-4 me-3 text-warning"></i>    <div>        <strong>Potential Quality Loss:</strong>         Targeting a <b>File Size (%)</b> while changing formats (e.g., MP4 to AVI) can cause extreme pixelation.         <hr class="my-2">        <p class="mb-0 small">            <strong>Pro Tip:</strong> To avoid this, use <b>"Specific file size"</b> or switch to the <a href="/video-compressor" class="alert-link">Video Compressor</a> with output set to <b>"Same as source".</b>        </p>    </div></div>`

`<div class="d-flex align-items-center">    <i class="bi bi-exclamation-triangle-fill fs-4 me-3 text-warning"></i>    <div>        <strong>Potential Quality Loss:</strong>         Targeting a <b>File Size (%)</b> while changing formats (e.g., MP4 to AVI) can cause extreme pixelation.         <hr class="my-2">        <p class="mb-0 small">            <strong>Pro Tip:</strong> To avoid this, use <b>"Specific file size"</b> or change the <b>Video File Extension</b> to same extension or <b>"Same as source".</b>        </p>    </div></div>`

Quality Preset

Preset

Target file size (%) (Best)

File size (%)

Auto Scale

Specific file size

File size

Constant Bitrate

Bitrate

Variable Bitrate

Min bitrate

Max bitrate

Constant Quality

Constraint Quality

Qmin

Qmax

Drop Frames

`
                    <div>
                        <strong>Frame dropping</strong> is the most effective way to compress an already optimized GIF.
                        <br><br>
                        A smooth GIF typically runs at <strong>10–15 FPS</strong>. If your file’s FPS (shown on the file card above) is higher, use these recommendations:
                        
                        <ul>
                            <li>
                                <strong>Above 20 FPS:</strong> Drop every 2nd frame.
                            </li>
                            <li>
                                <strong>15–20 FPS:</strong> Drop every 3rd frame.
                            </li>
                        </ul>

                        <small><em>Note: Dropping frames reduces file size by removing animation detail. Lower the number, the more frames you drop.</em></small>
                    </div>
                `

ORIGINAL

Frames To Drop

Video resolution

Resolution Percentage

By Percentage

Keep original

Fixed Resolutions

Preset Resolutions

Width (Keep aspect ratio)

Width

Height (Keep aspect ratio)

Height

Width x Height

Colors

By Color Reduction + Dither

Color Palette Size

Dither

Compression level

Compression Type

LOSSY

DEFLATE

PACKBITS

CCITT Fax 4

NONE

JPEG

WebP

ZSTD

JP2K (JPEG 2000)

Trim

Unchanged

Time Range

Start time

Convert M4V to SWF video files with adjustable quality preset, codecs, resolution options, and trim settings. Fast conversion in your browser.

Upload an M4V video and convert it to SWF in a few clicks. Optionally trim the clip, choose a quality preset, and adjust resolution.

Convert M4V to SWF

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