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• FFMPEG rtmp live stream with android fps is too low

  27 novembre 2015, par 蔡明原

  I’m interesting live stream from android to youtube.
  I have compile ffmpeg and write jni to live stream with android.
  but the fps is too low, it always has 3 5 fps, the user view is not good.
  how can i do to change the fps.
  this is my jni code with ffmpeg init.

  AVCodecContext *video_codec_ctx = video_stream->codec;
  
    video_codec_ctx->codec_id = video_codec->id;
  
    video_codec_ctx->codec_type = AVMEDIA_TYPE_VIDEO;
  
    video_codec_ctx->level = 31;
  
  
  
    video_codec_ctx->width = width;
  
    video_codec_ctx->height = height;
  
    video_codec_ctx->pix_fmt = PIX_FMT_YUV420P;
  
  
  
    video_codec_ctx->rc_max_rate = 0;
  
    video_codec_ctx->rc_buffer_size = 0;
  
    video_codec_ctx->gop_size = 30;
  
    video_codec_ctx->max_b_frames = 0;
  
    video_codec_ctx->slices = 8;   
  
    video_codec_ctx->b_frame_strategy = 1;
  
    video_codec_ctx->coder_type = 0;
  
    video_codec_ctx->me_cmp = 1;
  
    video_codec_ctx->me_range = 16;
  
    video_codec_ctx->qmin = 10;
  
    video_codec_ctx->qmax = 51;
  
    video_codec_ctx->keyint_min = 25;
  
    video_codec_ctx->refs= 3;   
  
    video_codec_ctx->trellis = 0;
  
    video_codec_ctx->scenechange_threshold = 40;
  
    video_codec_ctx->flags |= CODEC_FLAG_LOOP_FILTER;
  
    video_codec_ctx->me_method = ME_HEX;
  
    video_codec_ctx->me_subpel_quality = 6;
  
    video_codec_ctx->i_quant_factor = 0.71;
  
    video_codec_ctx->qcompress = 0.6;
  
    video_codec_ctx->max_qdiff = 4;
  
    video_codec_ctx->time_base.den = 30;
  
    video_codec_ctx->time_base.num = 1;
  
    video_codec_ctx->bit_rate = 5200*1000;
  
    video_codec_ctx->bit_rate_tolerance = 0;
  
    video_codec_ctx->flags2 |= 0x00000100;
  
  
  
    fmt_context->bit_rate = 6000*1000;
  
  
  
    av_opt_set(video_codec_ctx, "partitions", "i8x8,i4x4,p8x8,b8x8", 0);
  
  
  
    av_opt_set_int(video_codec_ctx, "direct-pred", 1, 0);
  
    av_opt_set_int(video_codec_ctx, "rc-lookahead", 0, 0);
  
    av_opt_set_int(video_codec_ctx, "fast-pskip", 1, 0);
  
    av_opt_set_int(video_codec_ctx, "mixed-refs", 1, 0);
  
    av_opt_set_int(video_codec_ctx, "8x8dct", 0, 0);
  
    av_opt_set_int(video_codec_ctx, "weightb", 0, 0);
  
  
  
    if(fmt_context->oformat->flags & AVFMT_GLOBALHEADER)
  
        video_codec_ctx->flags |= CODEC_FLAG_GLOBAL_HEADER;
  
  
  
    LOGI("Opening video codec");
  
    AVDictionary *vopts = NULL;
  
    av_dict_set(&vopts, "profile", "main", 0);
  
    //av_dict_set(&vopts, "vprofile", "main", 0);
  
    av_dict_set(&vopts, "rc-lookahead", 0, 0);
  
    av_dict_set(&vopts, "tune", "film", 0);  
  
    av_dict_set(&vopts, "preset", "ultrafast", 0);  
  
    av_opt_set(video_codec_ctx->priv_data,"tune","film",0);
  
    av_opt_set(video_codec_ctx->priv_data,"preset","ultrafast",0);
  
    av_opt_set(video_codec_ctx->priv_data,"tune","film",0);
  
    int open_res = avcodec_open2(video_codec_ctx, video_codec, &vopts);

• Revision 34313 : textebrut sur le #NOM_SITE_SPIP

  8 janvier 2010, par fil@… — Log

  textebrut sur le #NOM_SITE_SPIP

• FFmpeg "no frame !" encoding error

  9 juillet 2015, par oleg.semen

  I’m trying to compress video by scaling it. Here is how
  But I’m getting this error :

  D/FFMpeg﹕ progress[h264 @ 0x42124970] no frame!
  
  D/FFMpeg﹕ progress[aac @ 0x42122fe0] Input buffer exhausted before END element found

  here is whole log :

   Loading FFmpeg for armv7-neon CPU
  
   start
  
   Running publishing updates method
  
   progressWARNING: linker: /data/data/com.example.ffmpeg/files/ffmpeg has text relocations. This is wasting memory and is a security risk. Please fix.
  
   progressffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
  
   progress  built on Oct  7 2014 15:08:46 with gcc 4.8 (GCC)
  
   progress  configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a-neon --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -mfpu=neon' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
  
   progress  libavutil      54.  7.100 / 54.  7.100
  
   progress  libavcodec     56.  1.100 / 56.  1.100
  
   progress  libavformat    56.  4.101 / 56.  4.101
  
   progress  libavdevice    56.  0.100 / 56.  0.100
  
   progress  libavfilter     5.  1.100 /  5.  1.100
  
   progress  libswscale      3.  0.100 /  3.  0.100
  
   progress  libswresample   1.  1.100 /  1.  1.100
  
   progress  libpostproc    53.  0.100 / 53.  0.100
  
   progress[h264 @ 0x42124970] no frame!
  
   progress[aac @ 0x42122fe0] Input buffer exhausted before END element found
  
   progressInput #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Movies/Instagram/VID_37551017_035953.mp4':
  
   progress  Metadata:
  
   progress    major_brand     : isom
  
   progress    minor_version   : 0
  
   progress    compatible_brands: isom3gp4
  
   progress    creation_time   : 2015-06-19 09:03:19
  
   progress  Duration: 00:00:03.20, start: 0.000000, bitrate: 2975 kb/s
  
   progress    Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x640, 2911 kb/s, 15.22 fps, 14.92 tbr, 90k tbn, 180k tbc (default)
  
   progress    Metadata:
  
   progress      creation_time   : 2015-06-19 09:03:19
  
   progress      handler_name    : VideoHandle
  
   progress    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 101 kb/s (default)
  
   progress    Metadata:
  
   progress      creation_time   : 2015-06-19 09:03:19
  
   progress      handler_name    : SoundHandle

  Did I miss something in config ?
  Thanks.