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• Anomalie #4633 (Nouveau) : argument ’date’ du pipeline optimiser_base_disparus

  18 janvier 2021, par Maïeul Rouquette

  Hop,

  dans mes logs j’ai ceci

  2021-01-18 18:22:16 127.0.0.1 (pid 13677) :Pri:ERREUR : Erreur 1525 de mysql : Incorrect TIMESTAMP value : ’’2021-01-17 18:22:16’’
  in /home/mrouquet/Sites/dev/localhost/plugins-dist/forum/forum_pipelines.php L308 [sql_delete(),forum_optimiser_base_disparus(),minipipe(),execute_pipeline_optimiser_base_disparus(),pipeline(),optimiser_base_disparus(),optimiser_base(),genie_optimiser_dist(),queue_start_job(),queue_schedule(),action_forcer_job_dist(),traiter_appels_actions()]
  DELETE FROM `spip_localhost`.spip_forum
  WHERE statut=’redac’ AND maj &lt ; ’\’2021-01-17 18:22:16\’’
  2021-01-18 18:22:16 127.0.0.1 (pid 13677) :Pri:ERREUR : Erreur 1525 de mysql : Incorrect TIMESTAMP value : ’’2021-01-17 18:22:16’’
  in /home/mrouquet/Sites/dev/localhost/plugins-dist/mots/mots_pipelines.php L97 [sql_delete(),mots_optimiser_base_disparus(),minipipe(),execute_pipeline_optimiser_base_disparus(),pipeline(),optimiser_base_disparus(),optimiser_base(),genie_optimiser_dist(),queue_start_job(),queue_schedule(),action_forcer_job_dist(),traiter_appels_actions()]
  DELETE FROM `spip_localhost`.spip_mots
  WHERE length(titre)=0 AND maj &lt ; ’\’2021-01-17 18:22:16\’’
  2021-01-18 18:22:16 127.0.0.1 (pid 13677) :Pri:ERREUR : Erreur 1525 de mysql : Incorrect TIMESTAMP value : ’’2021-01-17 18:22:16’’
  in /home/mrouquet/Sites/dev/localhost/plugins-dist/petitions/petitions_pipelines.php L58 [sql_delete(),petitions_optimiser_base_disparus(),minipipe(),execute_pipeline_optimiser_base_disparus(),pipeline(),optimiser_base_disparus(),optimiser_base(),genie_optimiser_dist(),queue_start_job(),queue_schedule(),action_forcer_job_dist(),traiter_appels_actions()]
  DELETE FROM `spip_localhost`.spip_petitions
  WHERE statut=’poubelle’ AND maj &lt ; ’\’2021-01-17 18:22:16\’’
  2021-01-18 18:22:16 127.0.0.1 (pid 13677) :Pri:ERREUR : Erreur 1525 de mysql : Incorrect TIMESTAMP value : ’’2021-01-17 18:22:16’’
  in /home/mrouquet/Sites/dev/localhost/plugins-dist/sites/sites_pipelines.php L228 [sql_delete(),sites_optimiser_base_disparus(),minipipe(),execute_pipeline_optimiser_base_disparus(),pipeline(),optimiser_base_disparus(),optimiser_base(),genie_optimiser_dist(),queue_start_job(),queue_schedule(),action_forcer_job_dist(),traiter_appels_actions()]
  DELETE FROM `spip_localhost`.spip_syndic
  WHERE maj&lt ;’\’2021-01-17 18:22:16\’’ AND statut=’refuse’
  2021-01-18 18:22:16 127.0.0.1 (pid 13677) :Pri:ERREUR : Erreur 1525 de mysql : Incorrect TIMESTAMP value : ’’2021-01-17 18:22:16’’
  in /home/mrouquet/Sites/dev/localhost/plugins-dist/breves/breves_pipelines.php L298 [sql_select(),breves_optimiser_base_disparus(),minipipe(),execute_pipeline_optimiser_base_disparus(),pipeline(),optimiser_base_disparus(),optimiser_base(),genie_optimiser_dist(),queue_start_job(),queue_schedule(),action_forcer_job_dist(),traiter_appels_actions()]
  SELECT B.id_breve AS id
  FROM `spip_localhost`.spip_breves AS B
              LEFT JOIN `spip_localhost`.spip_rubriques AS R
                  ON B.id_rubrique=R.id_rubrique
  WHERE R.id_rubrique IS NULL
              AND B.maj &lt ; ’\’2021-01-17 18:22:16\’’

  Cela vient du fait que $flux[’args’][’date’] du pipeline optimiser_base_disparus est valeur qui est déjà passé par sql_quote(). (cf. fonction `optimiser_base_disparus` du code, qui contient la ligne (`$mydate = sql_quote(date("Y-m-d H:i:s", time() - $attente)) ;`)

  Or la plupart des plugin(-dist) qui utilise ce paramètre $flux[’args’][’date’] pour construire leur requete passe en sql_quote. Du couip double sql_quote.

  La question que je me pose : faut-il corriger les plugins(-dist) ou le core ?

• I am unable to decode the frames in python using ffmpeg [closed]

  12 mai 2024, par Saail Chavan

  import pylwdrone
import cv2
import numpy as np

# Initialize the LWDrone object
drone = pylwdrone.LWDrone()

# Start the video stream
for packet in drone.start_video_stream():
    try:
        # Print the size of the frame data
        print("Packet frame bytes size:", len(packet.frame_bytes))

        # Print a portion of the frame data (first 100 bytes)
        print("First 100 bytes of frame data:", packet.frame_bytes[:100])

        # Convert the frame data to numpy array
        frame = np.frombuffer(packet.frame_bytes, dtype=np.uint8)

        # Get the actual frame shape
        frame_shape = frame.shape
        print("Actual frame shape:", frame_shape)

        # Reshape the frame data
        frame = frame.reshape((frame_shape[0]//3, 3))

        # Display the frame
        cv2.imshow("Debug Frame", frame)

        # Check for 'q' key to exit
        if cv2.waitKey(1) & 0xFF == ord('q'):
            break

    except ValueError as ve:
        print("ValueError:", ve)
        # Skip this frame and continue to the next one
        continue
    except Exception as e:
        print("An error occurred:", e)
        break

# Clean up
cv2.destroyAllWindows()
drone.stop_video_stream()


  


  error: :

  


  


  Actual frame shape : (31621,)
ValueError : cannot reshape array of size 31621 into shape (10540,3)
Packet frame bytes size : 45509
First 100 bytes of frame data : bytearray(b"\x00\x00\x00\x01A\x9a\x00\x10\x00 #\xbf\xf4 \xb7\xe8\xe0\xd3\xb5\x87\xe3\xb8\x0c\xc8\xecN\xe1C\xb4p\x18\xb682 \xb4ef\x15\xc3B\t\xd3^z\x94iF\x05\x89\x1f\xd0\xd3\x1f\xa1\xe7\x12 \\\'\x8f2\t\x017[`l\x1c{[TA\x8eL\xb6\xf7\xd0/\xc9\xb1\xfa\xa2\xc1\xbdw\x98fd\x86\x84\xbcB$\x1d*q\xf7\x02\x1c")
Actual frame shape : (45509,)
ValueError : cannot reshape array of size 45509 into shape (15169,3)
Packet frame bytes size : 20981
First 100 bytes of frame data : bytearray(b"\x00\x00\x00\x01A\x9a\x00\x12\x00$!\x0f\xe2\xb8\xe0\xfd\x0c\xfbR\xd5.\x18\x94L>\xc6\xaf\xa6\xbaN\xf7\x83^M\xff`Q\xc1\xf7\x95u\xb2\xe00\x14\x92z\x94\xf2V\xafe~\xc4\xaa\xa0;,^\x8b*\x14\x00\xa9\xea\xb8=\xc0t\xd3a\xbe. \'\xbf\xac\xd7\xf7\x84\x83\x11\xe2\xc9\x80\x1a\xe1G\x89\xf9\xc4\xd1\xdfX\xfc\xcd\x98\xe3u\xed")
Actual frame shape : (20981,)
ValueError : cannot reshape array of size 20981 into shape (6993,3)
Packet frame bytes size : 23269

  


  


  i am trying to stream the video from my drone using ffmpeg-python and opencv

  


• Transport SEI With Ffmpeg

  29 août 2016, par yuan tian

  I need to transport some data from drone through the help of Ffmpeg.The data includes frame data and some other parameters such as the timing roll/pitch/height/direction of the drone,and when I get the image of the frame,the corresponding parameters should be also pulled out,So I dicede to send these parameters as SEI.
  Then the questions coming,after sending sps pps,I send my own SEI packet，eg :

   if(pkt->size>10&&pkt->data[0] ==0
  
         &&pkt->data[1] ==0
  
         &&pkt->data[2] ==0
  
         &&pkt->data[3] ==1
  
         &&(pkt->data[4] == 103 || pkt->data[4] == 104)){
  
          i++;
  
      }
  
      AVPacket *newPacket = nullptr;
  
      // 0 0 0 1 6 8*16
  
      if(i == 2){
  
          i = 0;
  
          newPacket = (AVPacket *)av_malloc(sizeof(AVPacket));
  
          av_init_packet(newPacket);
  
          newPacket->data = new uint8_t[8];
  
          newPacket->data[0] = 0;
  
          newPacket->data[1] = 0;
  
          newPacket->data[2] = 0;
  
          newPacket->data[3] = 1;
  
          newPacket->data[4] = 6;
  
          newPacket->data[5] = 123;
  
          newPacket->data[6] = 134;
  
          newPacket->data[7] = 128;
  
          newPacket->size = 8;
  
      }
  
   av_write_frame(*it , pkt);
  
          av_free_packet(pkt);
  
          if(newPacket){
  
              av_write_frame(*it , newPacket);
  
              av_free_packet(newPacket);
  
          }

  But,At the receiving terminate,I only find the API:av_read_frame.The API just decode every complete frame from AVFormatContext.My SEI go nothing !
  Besides,I also trying to put my parameters in side_data or metadate of AVFrame,but after rtp tansporting,received AVFrame’s side_data and metadata is 0x00 again.
  Could someone give me some train of thought ?