Sometimes, even the video codec used to encode MP4 files are recognized by QuickTime player, you may still get only picture of video but no sound due to the wrong audio codec contained in MP4 files.
#Are mp4 for mac? movie#
If you try to open MP4 files with incompatible codec with QuickTime player, you will meet "the movie could not be opened" error message. Video codec: MPEG-1, MPEG-2, MPEG-4 (A)SP, H.264/MPEG-4, H.265/HEVC, VC-1/WMV, Real Video, Theora, Microsoft MPEG4 V2, VP8, VP9, MVCĪudio codec: MP3, WMA, AAC, AC-3, DTS, ALAC, LPCM, DTS-HDĪlthough QuickTime has native support for MP4 file formats, however, it only play MP4 files compressed with the codec of MPEG-2 (OS X Lion or later), MPEG-4 and H.264 codec. It is well know that MP4 is a multimedia container file format that can store data that are encoded with various different video and audio codec as below: Why MP4 files fail to play on QuickTime player? An invalid sample description was found in the movie. Any help on the reasons why Quicktime won't play the MP4 movies would be greatly appreciated." When I try and play the movies using Quicktime I get the following error message: The movie could not be opened. mp4 format that for some reason Quicktime player doesn't seem to like. What am I doing wrong? Where should I open the video to play it? itunes or imovie?" When I open quicktime, open file, mp4, there is a picture of the video with no sound and its not playing. I downloaded some mp4 videos and quicktime but cannot get them to play.
#Are mp4 for mac? download#
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