How to combine two differnt Image Sequences at different Frame Rates Into A Video with avconv & python? -


i have 2 sets of images have no problem combining separately avconv (with different rates using -r) 1 set @ -r .20 (extending 1 image 5 seconds of video ) , other set @ regular framerate assemble video @ regular speed.

when try combine these seperate avi files avconv or avimerge resulting video has frame rate of first video (-r .20)

is there way combine these 2 , both sequences in frame rates exported at?

here sloppy code put here:

try:  p = subprocess.popen(["avconv" , "-y" ,  "-r" , ".20" , "-i" , "head%03d.jpg" , "-i" , audio , head_video_filename],  universal_newlines=true, stdout=subprocess.pipe)           out, err = p.communicate()     retcode = p.wait() except ioerror:     pass else:     print "] encoding of header.avi finished:" + str(retcode)  try:     p = subprocess.popen(["avconv" , "-y"  , "-i" , "tail%03d.jpg" , "-r" , "25" , tail_video_filename],  universal_newlines=true, stdout=subprocess.pipe)           out, err = p.communicate()     retcode = p.wait() except ioerror:     pass else:     print "] encoding of tail.avi finished:" + str(retcode) try:      group_of_videos = "concat:"+head_video_filename+"|"+tail_video_filename     p = subprocess.popen(["avconv" , "-i" , group_of_videos , "-c" , "copy" , full_video_filename] ,  universal_newlines=true, stdout=subprocess.pipe)           out, err = p.communicate()     retcode = p.wait() except ioerror:     pass else:     print "] encoding of full_video.avi finished:" + str(retcode)   return
#

i figured out more or less. these steps took although longer, more or less gives me 2 videos separate sources images , frame rates, chance encode them , add separate music track ending video. works still needs tweaking on frame rates (30, 29.x etc right)

encode first video sequence input @ .2 , export @ 30fps 
try:     p = subprocess.popen(["avconv" , "-stats" , "0" , "-y"  ,  "-r" , ".2" , "-i" , "first%03d.jpg" , "-crf" , "1" , "-s" ,  "1280x720" , "-r" , "30" ,first_video_filename],  universal_newlines=true, stdout=subprocess.pipe)          out, err = p.communicate()     retcode = p.wait() except ioerror:     pass else:     print "] encoding of first video finished: " + str(retcode)
encode second video sequence input @ 29.7fps , export @ 30fps 
try:     p = subprocess.popen(["avconv" , "-stats" , "0" , "-y" , "-i" , "second%03d.jpg" , "-crf" , "1" , "-b" , "65536k" , "-s" , "1280x720" , "-r" , "30" , second_video_filename],  universal_newlines=true, stdout=subprocess.pipe)          out, err = p.communicate()     retcode = p.wait() except ioerror:     pass else:     print "] encoding of second video finished: " + str(retcode)
combine avi's 
try:     p = subprocess.popen(["mencoder"  , "-forceidx" , "-ovc" , "copy" , "-o" , combined_video_filename , first_video_filename , second_video_filename] ,  universal_newlines=true, stdout=subprocess.pipe)           out, err = p.communicate()     retcode = p.wait() except ioerror:     "* failed make combined video"     pass else:     print "] encoding of combined video finished:" + str(retcode)
# add audio mix track 
try:     p = subprocess.popen(["avconv"  , "-stats" , "0" , "-y" , "-i" , combined_video_filename , "-i" , combined_audio , "-c" , "copy" , "-crf" , "1" , "-b" , "65536k" ,"-shortest" , final_video_filename] ,  universal_newlines=true, stdout=subprocess.pipe)           out, err = p.communicate()     retcode = p.wait() except ioerror:     "* failed make final video"     pass else:     print "] encoding of final video finished: " + str(retcode)

ham fisted, helps 1 day xoxoxox


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