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• configure : Prefix libc-related variables with "libc_"

  4 décembre 2013, par Diego Biurrun

  configure : Prefix libc-related variables with "libc_"
  Simplifies host/target libc detection splitting.
  

  • [DBH] configure
  • [DBH] libavcodec/Makefile
  • [DBH] libavdevice/Makefile
  • [DBH] libavformat/Makefile
  • [DBH] libavutil/internal.h

• Opencv VideoCapture not streaming RTSP link and returns "no frame !"

  6 septembre 2023, par Asadullah Naeem

  I am trying to stream my HikVision IP camera throough python. I am using cv2.VideoCapture("rtsp_link") which works fine on my Laptop but when I try to run the same python script with same Opencv and FFmpeg version it gives me following error :

  


  Error :

  


  [h264 @ 000002124c7f9a40] missing picture in access unit with size 47
[h264 @ 000002124c7f9a40] no frame!


  


  I have so far tried to run this script on 5 computer devices but it gives the same error. I am using the following python script and my Opencv version is 4.6.0.66 and ffmpeg version 2022-06-20-git-56419428a8-essentials_build-www.gyan.dev :

  


  Python Script :

  


  import cv2

# RTSP stream URL
rtsp_url = "rtsp://username:password@ip_address:port/Streaming/Channels/501"

# Open the RTSP stream
cap = cv2.VideoCapture(rtsp_url)

# Check if the stream was successfully opened
if not cap.isOpened():
    print("Failed to open RTSP stream.")
    exit()

# Read and display frames from the stream
while True:
    # Read a frame from the stream
    ret, frame = cap.read()

    # Check if the frame was successfully read
    if not ret:
        print("Failed to read frame from RTSP stream.")
        break

    # Display the frame
    cv2.imshow("RTSP Stream", frame)

    # Exit if 'q' is pressed
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

# Release the resources
cap.release()
cv2.destroyAllWindows()



  


  Update :

  


  Code runs on a laptop on both wifi and mobile internet (4G) but on other devices rtsp link is accessible only with mobile internet (4G).

  


• lavc : Consistently prefix input buffer defines

  29 juin 2015, par Vittorio Giovara

  lavc : Consistently prefix input buffer defines
  Signed-off-by : Vittorio Giovara <vittorio.giovara@gmail.com>
  

  • [DH] avconv.c
  • [DH] doc/examples/avcodec.c
  • [DH] doc/examples/qsvdec.c
  • [DH] libavcodec/4xm.c
  • [DH] libavcodec/a64multienc.c
  • [DH] libavcodec/aac_adtstoasc_bsf.c
  • [DH] libavcodec/aac_parser.c
  • [DH] libavcodec/aacdec.c
  • [DH] libavcodec/aacenc.c
  • [DH] libavcodec/ac3_parser.c
  • [DH] libavcodec/ac3dec.h
  • [DH] libavcodec/adpcmenc.c
  • [DH] libavcodec/alacenc.c
  • [DH] libavcodec/asvenc.c
  • [DH] libavcodec/atrac3.c
  • [DH] libavcodec/avcodec.h
  • [DH] libavcodec/avpacket.c
  • [DH] libavcodec/binkaudio.c
  • [DH] libavcodec/cdxl.c
  • [DH] libavcodec/cook.c
  • [DH] libavcodec/dca_parser.c
  • [DH] libavcodec/dss_sp.c
  • [DH] libavcodec/dump_extradata_bsf.c
  • [DH] libavcodec/dvdec.c
  • [DH] libavcodec/ffv1enc.c
  • [DH] libavcodec/g2meet.c
  • [DH] libavcodec/get_bits.h
  • [DH] libavcodec/gif.c
  • [DH] libavcodec/h264.c
  • [DH] libavcodec/h264_mp4toannexb_bsf.c
  • [DH] libavcodec/hevc_mp4toannexb_bsf.c
  • [DH] libavcodec/hevc_parse.c
  • [DH] libavcodec/huffyuvdec.c
  • [DH] libavcodec/huffyuvenc.c
  • [DH] libavcodec/iff.c
  • [DH] libavcodec/imc.c
  • [DH] libavcodec/imx_dump_header_bsf.c
  • [DH] libavcodec/internal.h
  • [DH] libavcodec/jpeglsenc.c
  • [DH] libavcodec/libdcadec.c
  • [DH] libavcodec/libfaac.c
  • [DH] libavcodec/libfdk-aacenc.c
  • [DH] libavcodec/libopenh264enc.c
  • [DH] libavcodec/libopusenc.c
  • [DH] libavcodec/libspeexenc.c
  • [DH] libavcodec/libvo-aacenc.c
  • [DH] libavcodec/libvorbis.c
  • [DH] libavcodec/libx265.c
  • [DH] libavcodec/libxavs.c
  • [DH] libavcodec/libxvid.c
  • [DH] libavcodec/ljpegenc.c
  • [DH] libavcodec/mdec.c
  • [DH] libavcodec/mjpega_dump_header_bsf.c
  • [DH] libavcodec/mjpegdec.c
  • [DH] libavcodec/motionpixels.c
  • [DH] libavcodec/movsub_bsf.c
  • [DH] libavcodec/mpeg4videodec.c
  • [DH] libavcodec/mpegvideo.c
  • [DH] libavcodec/mss2.c
  • [DH] libavcodec/noise_bsf.c
  • [DH] libavcodec/nuv.c
  • [DH] libavcodec/nvenc.c
  • [DH] libavcodec/options.c
  • [DH] libavcodec/parser.c
  • [DH] libavcodec/pngenc.c
  • [DH] libavcodec/pnm_parser.c
  • [DH] libavcodec/proresenc.c
  • [DH] libavcodec/qsvdec.c
  • [DH] libavcodec/qsvenc.c
  • [DH] libavcodec/qsvenc_hevc.c
  • [DH] libavcodec/shorten.c
  • [DH] libavcodec/startcode.c
  • [DH] libavcodec/svq1enc.c
  • [DH] libavcodec/tiff.c
  • [DH] libavcodec/tiffenc.c
  • [DH] libavcodec/truemotion2.c
  • [DH] libavcodec/utils.c
  • [DH] libavcodec/utvideodec.c
  • [DH] libavcodec/utvideoenc.c
  • [DH] libavcodec/vc1dec.c
  • [DH] libavcodec/wavpack.c
  • [DH] libavcodec/wma.h
  • [DH] libavcodec/wmadec.c
  • [DH] libavcodec/wmalosslessdec.c
  • [DH] libavcodec/wmaprodec.c
  • [DH] libavcodec/wmavoice.c
  • [DH] libavcodec/wnv1.c
  • [DH] libavdevice/vfwcap.c
  • [DH] libavdevice/xcbgrab.c
  • [DH] libavformat/4xm.c
  • [DH] libavformat/adxdec.c
  • [DH] libavformat/aiffdec.c
  • [DH] libavformat/anm.c
  • [DH] libavformat/apc.c
  • [DH] libavformat/apetag.c
  • [DH] libavformat/asfdec.c
  • [DH] libavformat/avidec.c
  • [DH] libavformat/avio.h
  • [DH] libavformat/aviobuf.c
  • [DH] libavformat/bink.c
  • [DH] libavformat/cafdec.c
  • [DH] libavformat/flacdec.c
  • [DH] libavformat/flvdec.c
  • [DH] libavformat/hevc.c
  • [DH] libavformat/id3v2.c
  • [DH] libavformat/isom.c
  • [DH] libavformat/jvdec.c
  • [DH] libavformat/matroskadec.c
  • [DH] libavformat/mov.c
  • [DH] libavformat/movenc.c
  • [DH] libavformat/mpc.c
  • [DH] libavformat/mpc8.c
  • [DH] libavformat/mpegts.c
  • [DH] libavformat/mvi.c
  • [DH] libavformat/mxfdec.c
  • [DH] libavformat/mxg.c
  • [DH] libavformat/nutdec.c
  • [DH] libavformat/oggdec.c
  • [DH] libavformat/oggparsecelt.c
  • [DH] libavformat/oggparseflac.c
  • [DH] libavformat/oggparseopus.c
  • [DH] libavformat/oggparsespeex.c
  • [DH] libavformat/oggparsetheora.c
  • [DH] libavformat/oggparsevorbis.c
  • [DH] libavformat/omadec.c
  • [DH] libavformat/rawdec.c
  • [DH] libavformat/rdt.c
  • [DH] libavformat/riffdec.c
  • [DH] libavformat/rl2.c
  • [DH] libavformat/rmdec.c
  • [DH] libavformat/rtpdec_h264.c
  • [DH] libavformat/rtpdec_hevc.c
  • [DH] libavformat/rtpdec_latm.c
  • [DH] libavformat/rtpdec_mpeg4.c
  • [DH] libavformat/rtpdec_qdm2.c
  • [