[FFmpeg-user] Streaming an mp4/mov file in real time using FFMPEG (no moov atom)

Rishit Temp rishit.redirect at gmail.com
Mon Jan 11 19:48:43 EET 2021

I see. That puts me in a really tough spot and unfortunately I don’t have control over where the metadata is located. 

I might be able to access a raw H264 stream or a series of image captures. Can ffmpeg turn a series of images into a video feed and broadcast it given the frames per second assuming that the appropriate number of images are created in real time?

Thank you to everyone who has provided their input!


> On Jan 11, 2021, at 12:04 AM, Gyan Doshi <ffmpeg at gyani.pro> wrote:
> On 11-01-2021 10:34 am, Carl Zwanzig wrote:
>> On 1/10/2021 4:23 PM, Carl Eugen Hoyos wrote:
>>> Am Mo., 11. Jan. 2021 um 01:19 Uhr schrieb Rishit Temp
>>> <rishit.redirect at gmail.com>:
>>>> I am trying to read an incomplete MP4 file as it is being written in real time.
>>> This is in general impossible with FFmpeg.
>> I'm not sure it's possible at all with mp4/mov at all- you need metadata that's written when the file is closed.
> In some live broadcast workflows, which need some post work before telecast, the encoder writes a file with pre-specified metadata i.e. timestamps and packet offsets, and writes out the media to those offsets. This is inefficient in terms of space packing but any NLE can open these files and access the new data as it gets added.
> Regards,
> Gyan
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