Re: [Libav-user] How to achieve 30 FPS using APIs on Android?
Hi, Yes, we built FFMPEG libs by ourselves. What is Neon support? Regards Amber Beriwal Newgen Software Technologies Ltd. From: Libav-user [mailto:libav-user-boun...@ffmpeg.org] On Behalf Of William MANCON Sent: Wednesday, September 21, 2016 6:53 AM To: This list is about using libavcodec, libavformat, libavutil, libavdevice and libavfilter.Subject: Re: [Libav-user] How to achieve 30 FPS using APIs on Android? Did you built ffmpeg libs by yourself ? is there neon support ? Disclaimer :- This e-mail and any attachment may contain confidential, proprietary or legally privileged information. If you are not the original intended recipient and have erroneously received this message, you are prohibited from using, copying, altering or disclosing the content of this message. Please delete it immediately and notify the sender. Newgen Software Technologies Ltd (NSTL) accepts no responsibilities for loss or damage arising from the use of the information transmitted by this email including damages from virus and further acknowledges that no binding nature of the message shall be implied or assumed unless the sender does so expressly with due authority of NSTL. ___ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user
Re: [Libav-user] How to achieve 30 FPS using APIs on Android?
Did you built ffmpeg libs by yourself ? is there neon support ? ___ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user
Re: [Libav-user] Audio encoding: more samples than frame size (avcodec_encode_audio2)
> > > [libvorbis @ 028b1520] more samples than frame size > > (avcodec_encode_audio2) > > Are you sure that you are encoding to flac? > > You were spot on. I was using "test.ogg" instead of "test.flac". I made the following changes and now it works fine. -audio_decode_example("test.ogg", "test.sdp"); +audio_decode_example("test.flac", "test.sdp"); -outCodecCtx->sample_fmt = AV_SAMPLE_FMT_FLTP; +outCodecCtx->sample_fmt = AV_SAMPLE_FMT_S16; // FLAC uses fixed point samples Thanks! ___ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user
Re: [Libav-user] Demuxer not giving proper data to decoder ?
2016-09-15 13:54 GMT+02:00 Carl Eugen Hoyos: > 2016-09-15 13:41 GMT+02:00 ssshukla26 : > > [...] > > Did you already look at other hardware decoders in current FFmpeg? You may be interested to see this patch on -devel: crystalhd: Use up-to-date bsf API http://ffmpeg.org/pipermail/ffmpeg-devel/2016-September/199734.html Carl Eugen ___ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user
Re: [Libav-user] Audio encoding: more samples than frame size (avcodec_encode_audio2)
2016-09-20 10:02 GMT+02:00 Yu Ang Tan: > I am trying to read an RTP audio stream, and encode it into a FLAC file. > However, when I am reading the stream, I get this error: > > [libvorbis @ 028b1520] more samples than frame size > (avcodec_encode_audio2) Are you sure that you are encoding to flac? > During debug mode, it seems the frame_size of my input and output codec > context are mismatched: > > inCodecCtx->frame_size = 1152; > outCodecCtx->frame_size = 64; > > I tried to write 1152 to outCodecCtx->frame_size, but it gets overwritten > with 64 at `avcodec_open2()`. Why can't I set the frame_size to match the > input frame_size? My guess is that you are using a different codec for output than for input. Carl Eugen ___ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user
Re: [Libav-user] How to achieve 30 FPS using APIs on Android?
Hi, Decode Only. We are not generating PNG. These are the timings of obtaining YUV data from frame. Regards Amber Beriwal Newgen Software Technologies Ltd. From: Libav-user [mailto:libav-user-boun...@ffmpeg.org] On Behalf Of William MANCON Sent: Tuesday, September 20, 2016 3:31 PM To: This list is about using libavcodec, libavformat, libavutil, libavdevice and libavfilter.Subject: Re: [Libav-user] How to achieve 30 FPS using APIs on Android? thoses time are the time to decode and generate the png ? Disclaimer :- This e-mail and any attachment may contain confidential, proprietary or legally privileged information. If you are not the original intended recipient and have erroneously received this message, you are prohibited from using, copying, altering or disclosing the content of this message. Please delete it immediately and notify the sender. Newgen Software Technologies Ltd (NSTL) accepts no responsibilities for loss or damage arising from the use of the information transmitted by this email including damages from virus and further acknowledges that no binding nature of the message shall be implied or assumed unless the sender does so expressly with due authority of NSTL. ___ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user
[Libav-user] UDP streaming from one PC to another
Hi. I am wondering if I can stream with ffmpeg from one PC via UDP to another and the second one has ffmpeg using this stream as an input and save to file? Can I do it via CLI? Will I be able to do the same programatically using its API? Kind regards, Timur Guseynov ___ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user
Re: [Libav-user] How to achieve 30 FPS using APIs on Android?
thoses time are the time to decode and generate the png ? ___ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user
[Libav-user] Audio encoding: more samples than frame size (avcodec_encode_audio2)
I am trying to read an RTP audio stream, and encode it into a FLAC file. However, when I am reading the stream, I get this error: [libvorbis @ 028b1520] more samples than frame size (avcodec_encode_audio2) During debug mode, it seems the frame_size of my input and output codec context are mismatched: inCodecCtx->frame_size = 1152; outCodecCtx->frame_size = 64; I tried to write 1152 to outCodecCtx->frame_size, but it gets overwritten with 64 at `avcodec_open2()`. Why can't I set the frame_size to match the input frame_size? Should I create an additional output frame to copy the contents over in a loop? I'd really appreciate it if you could help me some help or suggestions. Here is my source: // // Test with this command: ffmpeg -re -f lavfi -i aevalsrc="atan(t/2)*sin(400*2*PI*t)" -ar 16000 -c:a pcm_s16be -f rtp rtp:// 127.0.0.1:8554 // ffmpeg -f dshow -i audio="Microphone (High Definition Audio Device)" -ar 16000 -c:a pcm_s16be -ac 1 -f rtp rtp://127.0.0.1:8554 // Working code #include "stdafx.h" #include extern "C" { #include #include #include #include #include #include #include #include } #define AUDIO_INBUF_SIZE 20480 #define ERRBUFFLEN 200 char errbuf[ERRBUFFLEN]; #define av_err2str(ret) av_strerror(ret, errbuf, ERRBUFFLEN) const int samp_rate = 16000; int count = 0; // Callback function int _ffmpeg_interrupt_fcn(void* ptr) { int = *((int*)ptr); //double = *((double*)ptr); r += 1; printf("Interrupted! %d\n", r); if (r > 30) return 1; return 0; } static int write_frame(AVFormatContext *fmt_ctx, const AVRational *time_base, AVStream *st, AVPacket *pkt) { /* rescale output packet timestamp values from codec to stream timebase */ av_packet_rescale_ts(pkt, *time_base, st->time_base); pkt->stream_index = st->index; /* Write the compressed frame to the media file. */ #ifdef DEBUG_PACKET log_packet(fmt_ctx, pkt); #endif return av_interleaved_write_frame(fmt_ctx, pkt); } /* * Audio decoding. */ static void audio_decode_example(const char *outfilename, const char *filename) { int len; FILE *f, *outfile; uint8_t inbuf[AUDIO_INBUF_SIZE + AV_INPUT_BUFFER_PADDING_SIZE]; AVPacket inpkt, outpkt; AVCodec *inCodec = NULL; AVCodecContext *inCodecCtx = NULL; AVFrame *decoded_frame = NULL; AVFormatContext *inFormatCtx = NULL; AVCodec *outCodec = NULL; AVCodecContext *outCodecCtx = NULL; AVFormatContext *outFormatCtx = NULL; AVStream * outAudioStream = NULL; int ret; av_init_packet(); AVDictionary *d = NULL; // "create" an empty dictionary av_dict_set(, "protocol_whitelist", "file,udp,rtp", 0); // add an entry // Open video file ret = avformat_open_input(, filename, NULL, ); if (ret <0) { printf_s("Failed: cannot open input.\n"); av_strerror(ret, errbuf, ERRBUFFLEN); fprintf(stderr, "avformat_open_input() fail: %s\n", errbuf); exit(1); } printf_s("Retrieve stream information.\n"); ret = avformat_find_stream_info(inFormatCtx, NULL); if (ret <0) { printf_s("Failed: cannot find stream.\n"); av_strerror(ret, errbuf, ERRBUFFLEN); fprintf(stderr, "avformat_find_stream_info() fail: %s\n", errbuf); exit(1); } av_dump_format(inFormatCtx, 0, filename, 0); int stream_idx = -1; for (int i = 0; i < inFormatCtx->nb_streams; i++) if (inFormatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_AUDIO) { stream_idx = i; break; } if (stream_idx == -1) { fprintf(stderr, "Video stream not found\n"); exit(1); } inCodec = avcodec_find_decoder(inFormatCtx->streams[stream_idx]->codec->codec_id); if (!inCodec) { fprintf(stderr, "Codec not found\n"); exit(1); } inCodecCtx = avcodec_alloc_context3(inCodec); if (!inCodecCtx) { fprintf(stderr, "Could not allocate audio codec context\n"); exit(1); } inCodecCtx->channels = 1; ret = avcodec_open2(inCodecCtx, inCodec, NULL); if (ret < 0) { fprintf(stderr, "Could not open codec: %s\n", av_err2str(ret)); exit(1); } // Set output ret = avformat_alloc_output_context2(, NULL, NULL, outfilename); if (!outFormatCtx || ret < 0) { fprintf(stderr, "Could not allocate output context"); } outFormatCtx->flags |= AVFMT_FLAG_NOBUFFER | AVFMT_FLAG_FLUSH_PACKETS;
[Libav-user] Memory leak while using ff_get_buffer ?
I am using *ff_get_buffer* in my decoder, it seems to me that using this API causing some memory leak. Please help, need your suggestions on this ! -- View this message in context: http://libav-users.943685.n4.nabble.com/Libav-user-Memory-leak-while-using-ff-get-buffer-tp4662720.html Sent from the libav-users mailing list archive at Nabble.com. ___ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user