|Subject:||Re: [Discuss-gnuradio] bit stuffing DVB-S TX example ?|
|Date:||Thu, 7 Feb 2019 23:38:35 +0000|
|User-agent:||Mozilla/5.0 (Windows NT 6.3; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.3.3|
I had the same issue, ffmpeg will not provide CBR for MP4 , you might end-up with variable bit rates on the TS stream. I had some good success with a target bit rate on ffmpeg around 150% of the bit rate set on GNURadio. But this will only work with real time inputs like webcam, when trying to run with pre-recorded videos or files I had a huge headache to get a "real" speed on the Rx side.
My set-up was similar to yours ffmpeg+gnuradio+hackrf one and rtlsdr+sdrangel on rx
Using a webcam as input it worked fine for me with around 125 to 150% bit rate on ffmpeg over the one at the gnuradio/sdrangel value.
Let me know if you want to know more about my settings.
On 07/02/2019 23:15, Alban Meffre wrote:
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