Convert 3GPP to MPG — Free Online Tool
Convert 3GPP mobile video files to MPG format using MPEG-2 video and MP2 audio codecs — the standard encoding used for DVD and broadcast video. This tool re-encodes your 3GP content entirely in-browser, transforming low-bitrate mobile footage into a broadcast-compatible MPEG program stream.
to
FFmpeg Command
Copy this command to run the same conversion locally with FFmpeg on your desktop. Download FFmpeg
Drop your 3GPP file here
or click to browse
Free — no uploads, no signups. Your files never leave your browser.
Settings
Note: Browser-based encoding uses approximate quality targets. For precise CRF compression, copy the FFmpeg command above and run it on your desktop.
Estimated output:
Conversion Complete!
DownloadHow It Works
3GPP files typically contain H.264 (libx264) video and AAC audio optimized for mobile transmission at low bitrates. Converting to MPG requires a full re-encode: the video stream is transcoded from H.264 to MPEG-2, a fundamentally different compression standard that uses larger I-frame intervals and a simpler entropy coding scheme. The audio is simultaneously transcoded from AAC to MP2 (MPEG-1 Audio Layer II), which was the standard audio codec for MPEG-2 broadcast and DVD-Video. The result is an MPEG program stream (.mpg) with much higher per-frame data rates than the original 3GP, making the output file significantly larger even though both formats are lossy.
What Each Flag Does
| Flag | What it does |
|---|---|
ffmpeg
|
Invokes the FFmpeg binary — the open-source multimedia processing engine that handles all decoding, transcoding, and muxing operations. In this browser tool, FFmpeg runs locally via WebAssembly (FFmpeg.wasm) without any server involvement. |
-i input.3gp
|
Specifies the input file, a 3GPP container (.3gp) which typically holds H.264 video and AAC or AMR audio encoded for mobile delivery. FFmpeg will demux this container to extract the raw encoded streams for transcoding. |
-c:v mpeg2video
|
Sets the output video codec to MPEG-2, the standard used in DVD, SVCD, and broadcast television. This triggers a full re-encode of the H.264 video stream from the 3GP source into MPEG-2 macroblocks — they are not compatible and cannot be stream-copied. |
-c:a mp2
|
Sets the output audio codec to MP2 (MPEG-1 Audio Layer II), the audio standard natively associated with MPEG-2 program streams and required for DVD-Video and broadcast MPG compliance. This re-encodes the 3GP's AAC audio into MP2 format. |
-q:v 2
|
Sets the MPEG-2 video quality using the fixed quantizer scale, where 1 is the highest quality and 31 is the lowest. A value of 2 instructs the encoder to use near-maximum quality, resulting in a high-bitrate MPEG-2 stream that minimizes re-encoding degradation compared to the 3GP source. |
-b:a 192k
|
Sets the MP2 audio output bitrate to 192 kilobits per second, which is the standard bitrate for broadcast-quality stereo MP2 audio and a common DVD-Video audio bitrate. This is significantly higher than the typical 64k AAC audio found in 3GP mobile files. |
output.mpg
|
Specifies the output filename with the .mpg extension, which tells FFmpeg to write an MPEG program stream container. This format wraps the MPEG-2 video and MP2 audio into a single multiplexed bitstream compatible with DVD authoring tools, broadcast ingest systems, and legacy media players. |
Common Use Cases
- Preparing old mobile phone video clips for import into legacy DVD authoring software like DVD Architect or Nero Vision that requires MPEG-2 program streams
- Submitting mobile-captured footage to broadcast or cable TV workflows that mandate MPEG-2 delivery specifications
- Archiving 3GPP video from early 3G-era phones into a more universally readable format playable on standalone DVD players via burned VCD or SVCD discs
- Ingesting 3GP field recordings into older non-linear editing systems (such as legacy Avid or Premiere versions) that natively accept MPG but not H.264-in-3GP
- Converting 3GPP clips captured on older Nokia or Sony Ericsson handsets into a format compatible with hardware media players and set-top boxes that support MPEG-2 but not H.264
- Normalizing a mixed archive of mobile video files to a single MPEG-2 baseline format for long-term institutional storage on systems with established MPG playback infrastructure
Frequently Asked Questions
3GPP files are engineered for mobile networks and use H.264 compression, which is extremely efficient at maintaining quality at low bitrates. MPEG-2, the codec used in the MPG output, is an older standard that requires significantly more data to represent the same visual content. Additionally, the default audio bitrate jumps from 64k AAC (in a typical 3GP file) to 192k MP2 in the MPG output. Expect the output file to be anywhere from 5x to 20x larger depending on the length and resolution of your source footage.
No — converting from 3GP to MPG cannot recover quality that was lost when the original mobile video was recorded. The 3GP source file was encoded with lossy compression, and re-encoding to MPEG-2 introduces a second generation of lossy compression on top of the first. The MPG output will be larger than the 3GP but will not look sharper. The higher default quality setting (-q:v 2) simply means MPEG-2 is being given sufficient bitrate headroom to faithfully represent whatever visual information survived the original H.264 encoding.
Not directly from the file alone — standard DVD players require video to be multiplexed into a specific DVD-Video structure with VOB files and IFO/BUP metadata, not a raw .mpg file. However, the MPEG-2 video and MP2 audio produced by this conversion are the correct codec ingredients for DVD authoring. You would need to import the MPG output into DVD authoring software (such as DVDStyler or DVD Flick) to create a proper DVD-Video disc image. For VCD playback, the MPEG-1 codec would be required instead.
MP2 (MPEG-1 Audio Layer II) is the default audio codec for MPEG-2 program streams and is the format mandated by the MPEG-2 specification for broadcast and DVD applications. While MP3 and AAC offer better quality at the same bitrate, many legacy MPG-compatible devices, DVD players, and broadcast systems only accept MP2 audio within an MPG container. Using MP2 ensures the widest compatibility with hardware and software that expects standard-compliant MPEG-2 streams.
The video quality is controlled by the -q:v flag, which accepts values from 1 (highest quality, largest file) to 31 (lowest quality, smallest file), with 2 as the default. For example, change -q:v 2 to -q:v 5 to reduce file size at a moderate quality cost. The audio bitrate is set with -b:a; you can change 192k to 128k, 256k, or 320k depending on your needs. A full example for smaller output: ffmpeg -i input.3gp -c:v mpeg2video -c:a mp2 -q:v 6 -b:a 128k output.mpg
Yes — on Linux or macOS, you can loop over all 3GP files in a directory with a shell one-liner: for f in *.3gp; do ffmpeg -i "$f" -c:v mpeg2video -c:a mp2 -q:v 2 -b:a 192k "${f%.3gp}.mpg"; done. On Windows Command Prompt, use: for %f in (*.3gp) do ffmpeg -i "%f" -c:v mpeg2video -c:a mp2 -q:v 2 -b:a 192k "%~nf.mpg". The browser-based tool processes one file at a time, so the FFmpeg command-line approach is recommended for batch jobs.
Technical Notes
The 3GP-to-MPG conversion involves a codec architecture shift in both the video and audio streams. On the video side, H.264 (the dominant codec in 3GP files) uses variable block sizes, CABAC entropy coding, and B-frame prediction, making it far more efficient than MPEG-2, which relies on fixed 16x16 macroblocks and simpler motion compensation. The transcoding process decodes the H.264 stream fully and re-encodes it as MPEG-2, which is computationally intensive and unavoidably introduces additional generational quality loss. The -q:v 2 default sets the MPEG-2 quantizer to its near-maximum quality level, minimizing the re-encoding penalty as much as possible. On the audio side, AAC and MP2 use completely different psychoacoustic models; AAC is generally more efficient, so the MP2 output at 192k will sound similar but not identical to the source AAC at 64k — the higher bitrate partially compensates for MP2's reduced efficiency. 3GP files sometimes carry mobile-specific metadata (GPS coordinates, device model) and may contain AMR audio rather than AAC if recorded on very early 3G handsets; AMR audio will still be transcoded to MP2 correctly, but any mobile metadata will be discarded in the MPG output since the MPEG program stream format has no equivalent metadata container. Neither format supports subtitles, chapters, or transparency, so no data of those types is at risk of being silently dropped.