user31518: I want to play video from SD card   by using arduino mega 2560 and TFT 3.2" touch screen is it possible ?
if yes please tell me. 
thanks in adavance

user37540: An ATMEGA2560 has no enough computational power to perform on-the-fly decoding, even at resolutions as low as 160x128 pixels and low frame rates. 
The best you can hope for is a 20 fps, 16 bpp, 160x128 pixel video, directly streamed from the SD card, uncompressed (800kB/s), if the MCU runs at 16MHz. Even with such low specs, you'll have to use a trick, to implement a direct peripheral to peripheral transfer.
We made a guide here for the Arduino Uno (i.e. ATMEGA328P), but it should work also for ATMEGA2560 with little modifications: https://next-hack.com/index.php/2017/08/14/how-to-play-a-video-on-arduino-uno-46-playing-a-20-fps-animation-from-sd-card/
On the same link you'll find also the youtube links for a video guide.

31518: <p>I want to play video from SD card   by using arduino mega 2560 and TFT 3.2" touch screen is it possible ?</p>

<p>if yes please tell me. </p>

<p>thanks in adavance</p>
 37540: <p>An ATMEGA2560 has no enough computational power to perform on-the-fly decoding, even at resolutions as low as 160x128 pixels and low frame rates. </p>

<p>The best you can hope for is a 20 fps, 16 bpp, 160x128 pixel video, directly streamed from the SD card, uncompressed (800kB/s), if the MCU runs at 16MHz. Even with such low specs, you'll have to use a trick, to implement a direct peripheral to peripheral transfer.</p>

<p>We made a guide here for the Arduino Uno (i.e. ATMEGA328P), but it should work also for ATMEGA2560 with little modifications: <a href="https://next-hack.com/index.php/2017/08/14/how-to-play-a-video-on-arduino-uno-46-playing-a-20-fps-animation-from-sd-card/" rel="nofollow noreferrer">https://next-hack.com/index.php/2017/08/14/how-to-play-a-video-on-arduino-uno-46-playing-a-20-fps-animation-from-sd-card/</a></p>

<p>On the same link you'll find also the youtube links for a video guide.</p>
