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[79.124.17.100]) by mx.google.com with ESMTP id f126si3653943wmg.81.2017.07.23.01.08.28; Sun, 23 Jul 2017 01:08:29 -0700 (PDT) Received-SPF: pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) client-ip=79.124.17.100; Authentication-Results: mx.google.com; spf=pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) smtp.mailfrom=ffmpeg-devel-bounces@ffmpeg.org Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 4D671688357; Sun, 23 Jul 2017 11:08:16 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from kazbek.m1stereo.tv (mail.m1stereo.tv [91.244.124.37]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 2D58368185F for ; Sun, 23 Jul 2017 11:08:09 +0300 (EEST) Received: from [10.1.5.65] (dev-3.internal.m1stereo.tv [10.1.5.65]) (authenticated bits=0) by kazbek.m1stereo.tv (8.14.4/8.14.4) with ESMTP id v6N88H01009032 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Sun, 23 Jul 2017 11:08:17 +0300 To: FFmpeg development discussions and patches From: Maksym Veremeyenko Message-ID: Date: Sun, 23 Jul 2017 11:08:17 +0300 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH] Implement NewTek NDI support X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Hi, attached patched for HEAD and n3.3 that implemented NewTek NDI, standard created by NewTek to make it easy to develop video-related products that share video on a local Ethernet network. From 3e87f4f643ca589fd511da495b2e0c90d38e87a8 Mon Sep 17 00:00:00 2001 From: Maksym Veremeyenko Date: Sun, 23 Jul 2017 03:34:13 -0400 Subject: [PATCH] Implement NewTek NDI support --- configure | 9 + doc/indevs.texi | 54 +++++ doc/outdevs.texi | 36 ++++ libavdevice/Makefile | 2 + libavdevice/alldevices.c | 1 + libavdevice/ndi_dec.c | 499 +++++++++++++++++++++++++++++++++++++++++++++++ libavdevice/ndi_enc.c | 289 +++++++++++++++++++++++++++ 7 files changed, 890 insertions(+) create mode 100644 libavdevice/ndi_dec.c create mode 100644 libavdevice/ndi_enc.c diff --git a/configure b/configure index 9b5789a..6cf283e 100755 --- a/configure +++ b/configure @@ -279,6 +279,7 @@ External library support: --enable-libzvbi enable teletext support via libzvbi [no] --disable-lzma disable lzma [autodetect] --enable-decklink enable Blackmagic DeckLink I/O support [no] + --enable-ndi enable Newteck NDI I/O support [no] --enable-mediacodec enable Android MediaCodec support [no] --enable-netcdf enable NetCDF, needed for sofalizer filter [no] --enable-openal enable OpenAL 1.1 capture support [no] @@ -1514,6 +1515,7 @@ EXTERNAL_LIBRARY_GPL_LIST=" EXTERNAL_LIBRARY_NONFREE_LIST=" decklink + ndi libfdk_aac openssl " @@ -2994,6 +2996,10 @@ decklink_indev_deps="decklink pthreads" decklink_indev_extralibs="-lstdc++" decklink_outdev_deps="decklink pthreads" decklink_outdev_extralibs="-lstdc++" +ndi_indev_deps="ndi pthreads" +ndi_indev_extralibs="-lndi" +ndi_outdev_deps="ndi pthreads" +ndi_outdev_extralibs="-lndi" dshow_indev_deps="IBaseFilter" dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi" dv1394_indev_deps="dv1394" @@ -5507,6 +5513,8 @@ avisynth_demuxer_extralibs='$ldl' cuda_extralibs='$ldl' decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl" decklink_indev_extralibs="$decklink_indev_extralibs $ldl" +ndi_outdev_extralibs="$ndi_outdev_extralibs $ldl" +ndi_indev_extralibs="$ndi_indev_extralibs $ldl" frei0r_filter_extralibs='$ldl' frei0r_src_filter_extralibs='$ldl' ladspa_filter_extralibs='$ldl' @@ -5764,6 +5772,7 @@ enabled coreimage_filter && { check_header_objcc QuartzCore/CoreImage.h || disa enabled coreimagesrc_filter && { check_header_objcc QuartzCore/CoreImage.h || disable coreimagesrc_filter; } enabled decklink && { { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; } && { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } } +enabled ndi && { check_header Processing.NDI.Lib.h || die "ERROR: Processing.NDI.Lib.h header not found"; } enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; } enabled gmp && require gmp gmp.h mpz_export -lgmp enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init diff --git a/doc/indevs.texi b/doc/indevs.texi index 51c304f..72baabd 100644 --- a/doc/indevs.texi +++ b/doc/indevs.texi @@ -321,6 +321,60 @@ ffmpeg -channels 16 -format_code Hi50 -f decklink -i 'UltraStudio Mini Recorder' @end itemize +@section ndi + +The ndi input device provides capture capabilities for using NDI (Network +Device Interface, standard created by NewTek). + +To enable this input device, you need the NDI SDK and you +need to configure with the appropriate @code{--extra-cflags} +and @code{--extra-ldflags}. + +@subsection Options + +@table @option + +@item find_sources +If set to @option{true}, print a list of found/available NDI sources and exit. +Defaults to @option{false}. + +@item wait_sources +Override time to wait until the number of online sources have changed (ms). +Defaults to @option{500}. + +@item allow_video_fields +When this flag is @option{false}, all video that you receive will be progressive. +Defaults to @option{1}. + +@item max_frames_probe +Maximum frames for probe input format. +Defaults to @option{25}. + +@item reference_level +The audio reference level in dB. This specifies how many dB above the +reference level (+4dBU) is the full range of 16 bit audio. +Defaults to @option{0}. + +@end table + +@subsection Examples + +@itemize + +@item +List input devices: +@example +ffmpeg -f ndi -find_sources 1 -i foo +@end example + +@item +Restream to NDI: +@example +ffmpeg -f ndi -i "DEV-5.INTERNAL.M1STEREO.TV (NDI_SOURCE_NAME_1)" -acodec copy -vcodec wrapped_avframe -f ndi -y NDI_SOURCE_NAME_2 +@end example + +@end itemize + @section dshow Windows DirectShow input device. diff --git a/doc/outdevs.texi b/doc/outdevs.texi index df41cc8..7830cc7 100644 --- a/doc/outdevs.texi +++ b/doc/outdevs.texi @@ -182,6 +182,42 @@ ffmpeg -i test.avi -f decklink -pix_fmt uyvy422 -s 720x486 -r 24000/1001 'DeckLi @end itemize +@section ndi + +The ndi output device provides playback capabilities for using NDI (Network +Device Interface, standard created by NewTek). + +To enable this output device, you need the NDI SDK and you +need to configure with the appropriate @code{--extra-cflags} +and @code{--extra-ldflags}. + +NDI is very picky about the formats it supports. Pixel format is always +uyvy422, framerate, field order and video size must be determined for your +device with @command{-list_formats 1}. Audio sample rate is always 48 kHz. + +@subsection Options + +@table @option + +@item reference_level +The audio reference level in dB. This specifies how many dB above the +reference level (+4dBU) is the full range of 16 bit audio. +Defaults to @option{0}. + +@end table + +@subsection Examples + +@itemize + +@item +Play video clip: +@example +ffmpeg -i "udp://@239.1.1.1:10480?fifo_size=1000000&overrun_nonfatal=1" -vf "scale=720:576,fps=fps=25,setdar=dar=16/9,format=pix_fmts=uyvy422" -vcodec wrapped_avframe -f ndi NEW_NDI1 +@end example + +@end itemize + @section fbdev Linux framebuffer output device. diff --git a/libavdevice/Makefile b/libavdevice/Makefile index 78c42e6..dc26bc5 100644 --- a/libavdevice/Makefile +++ b/libavdevice/Makefile @@ -19,6 +19,8 @@ OBJS-$(CONFIG_BKTR_INDEV) += bktr.o OBJS-$(CONFIG_CACA_OUTDEV) += caca.o OBJS-$(CONFIG_DECKLINK_OUTDEV) += decklink_enc.o decklink_enc_c.o decklink_common.o OBJS-$(CONFIG_DECKLINK_INDEV) += decklink_dec.o decklink_dec_c.o decklink_common.o +OBJS-$(CONFIG_NDI_OUTDEV) += ndi_enc.o +OBJS-$(CONFIG_NDI_INDEV) += ndi_dec.o OBJS-$(CONFIG_DSHOW_INDEV) += dshow_crossbar.o dshow.o dshow_enummediatypes.o \ dshow_enumpins.o dshow_filter.o \ dshow_pin.o dshow_common.o diff --git a/libavdevice/alldevices.c b/libavdevice/alldevices.c index 280a260..d968776 100644 --- a/libavdevice/alldevices.c +++ b/libavdevice/alldevices.c @@ -46,6 +46,7 @@ static void register_all(void) REGISTER_INDEV (BKTR, bktr); REGISTER_OUTDEV (CACA, caca); REGISTER_INOUTDEV(DECKLINK, decklink); + REGISTER_INOUTDEV(NDI, ndi); REGISTER_INDEV (DSHOW, dshow); REGISTER_INDEV (DV1394, dv1394); REGISTER_INOUTDEV(FBDEV, fbdev); diff --git a/libavdevice/ndi_dec.c b/libavdevice/ndi_dec.c new file mode 100644 index 0000000..7454ca8 --- /dev/null +++ b/libavdevice/ndi_dec.c @@ -0,0 +1,499 @@ +/* + * NDI input + * Copyright (c) 2017 Maksym Veremeyenko + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavformat/avformat.h" +#include "libavformat/internal.h" +#include "libavutil/opt.h" +#include "libavutil/imgutils.h" + +#include +//#include + +#include + +typedef struct AVPacketQueue { + AVPacketList *first_pkt, *last_pkt; + int nb_packets; + unsigned long long size; + int abort_request; + pthread_mutex_t mutex; + pthread_cond_t cond; + AVFormatContext *avctx; +} AVPacketQueue; + +static void avpacket_queue_init(AVFormatContext *avctx, AVPacketQueue *q) +{ + memset(q, 0, sizeof(AVPacketQueue)); + pthread_mutex_init(&q->mutex, NULL); + pthread_cond_init(&q->cond, NULL); + q->avctx = avctx; +} + +static void avpacket_queue_flush(AVPacketQueue *q) +{ + AVPacketList *pkt, *pkt1; + + pthread_mutex_lock(&q->mutex); + for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) { + pkt1 = pkt->next; + av_packet_unref(&pkt->pkt); + av_freep(&pkt); + } + q->last_pkt = NULL; + q->first_pkt = NULL; + q->nb_packets = 0; + q->size = 0; + pthread_mutex_unlock(&q->mutex); +} + +static void avpacket_queue_end(AVPacketQueue *q) +{ + avpacket_queue_flush(q); + pthread_mutex_destroy(&q->mutex); + pthread_cond_destroy(&q->cond); +} + +static unsigned long long avpacket_queue_size(AVPacketQueue *q) +{ + unsigned long long size; + pthread_mutex_lock(&q->mutex); + size = q->size; + pthread_mutex_unlock(&q->mutex); + return size; +} + +static int avpacket_queue_put(AVPacketQueue *q, AVPacket *pkt) +{ + AVPacketList *pkt1; + + // Drop Packet if queue size is > 1GB + if (avpacket_queue_size(q) > 1024 * 1024 * 1024 ) { + av_log(q->avctx, AV_LOG_WARNING, "%s: input buffer overrun!\n", __FUNCTION__); + return -1; + } + /* duplicate the packet */ + if (av_dup_packet(pkt) < 0) { + return -1; + } + + pkt1 = (AVPacketList *)av_malloc(sizeof(AVPacketList)); + if (!pkt1) { + return -1; + } + pkt1->pkt = *pkt; + pkt1->next = NULL; + + pthread_mutex_lock(&q->mutex); + + if (!q->last_pkt) { + q->first_pkt = pkt1; + } else { + q->last_pkt->next = pkt1; + } + + q->last_pkt = pkt1; + q->nb_packets++; + q->size += pkt1->pkt.size + sizeof(*pkt1); + + pthread_cond_signal(&q->cond); + + pthread_mutex_unlock(&q->mutex); + return 0; +} + +static int avpacket_queue_get(AVPacketQueue *q, AVPacket *pkt, int block) +{ + AVPacketList *pkt1; + int ret; + + pthread_mutex_lock(&q->mutex); + + for (;; ) { + pkt1 = q->first_pkt; + if (pkt1) { + q->first_pkt = pkt1->next; + if (!q->first_pkt) { + q->last_pkt = NULL; + } + q->nb_packets--; + q->size -= pkt1->pkt.size + sizeof(*pkt1); + *pkt = pkt1->pkt; + av_free(pkt1); + ret = 1; + break; + } else if (!block) { + ret = 0; + break; + } else { + pthread_cond_wait(&q->cond, &q->mutex); + } + } + pthread_mutex_unlock(&q->mutex); + return ret; +} + +struct ndi_ctx { + const AVClass *cclass; + + void *ctx; + + /* Options */ + int find_sources; + int wait_sources; + int allow_video_fields; + int max_frames_probe; + int reference_level; + + /* Runtime */ + NDIlib_recv_create_t* recv; + pthread_t reader; + int f_started, f_stop, dropped; + + /* Streams */ + AVStream *video_st, *audio_st; + AVPacketQueue queue; + AVFormatContext *avctx; + int interlaced; +}; + +static int ndi_enqeue_video(struct ndi_ctx *ctx, NDIlib_video_frame_t *v) +{ + AVPacket pkt; + av_init_packet(&pkt); + + pkt.dts = pkt.pts = av_rescale_q(v->timecode, (AVRational){1, 10000000LL}, ctx->video_st->time_base); + pkt.duration = av_rescale_q(1, (AVRational){v->frame_rate_D, v->frame_rate_N}, ctx->video_st->time_base); + + av_log(ctx->avctx, AV_LOG_DEBUG, "%s: pkt.dts = pkt.pts = %"PRId64", duration=%"PRId64", timecode=%"PRId64"\n", + __FUNCTION__, pkt.dts, pkt.duration, v->timecode); + + pkt.flags |= AV_PKT_FLAG_KEY; + pkt.stream_index = ctx->video_st->index; + pkt.data = (uint8_t *)v->p_data; + pkt.size = v->yres * v->line_stride_in_bytes; + + if (avpacket_queue_put(&ctx->queue, &pkt) < 0) { + ++ctx->dropped; + } + +// NDIlib_recv_free_video(ctx->recv, v); + + return 0; +} + +static int ndi_enqeue_audio(struct ndi_ctx *ctx, NDIlib_audio_frame_t *a) +{ + AVPacket pkt; + NDIlib_audio_frame_interleaved_16s_t dst; + + av_init_packet(&pkt); + + pkt.dts = pkt.pts = av_rescale_q(a->timecode, (AVRational){1, 10000000LL}, ctx->audio_st->time_base); + pkt.duration = av_rescale_q(1, (AVRational){a->no_samples, a->sample_rate}, ctx->audio_st->time_base); + + av_log(ctx->avctx, AV_LOG_DEBUG, "%s: pkt.dts = pkt.pts = %"PRId64", duration=%"PRId64", timecode=%"PRId64"\n", + __FUNCTION__, pkt.dts, pkt.duration, a->timecode); + + pkt.size = 2 * a->no_samples * a->no_channels; + pkt.data = (uint8_t *)av_mallocz(pkt.size); + + pkt.flags |= AV_PKT_FLAG_KEY; + pkt.stream_index = ctx->audio_st->index; + + dst.reference_level = 0; + dst.p_data = (short*)pkt.data; + NDIlib_util_audio_to_interleaved_16s(a, &dst); + + if (avpacket_queue_put(&ctx->queue, &pkt) < 0) { + ++ctx->dropped; + } + + NDIlib_recv_free_audio(ctx->recv, a); + + return 0; +} + +static void* ndi_reader(void* p) +{ + struct ndi_ctx *ctx = (struct ndi_ctx *)p; + + while (!ctx->f_stop) + { + NDIlib_video_frame_t v; + NDIlib_audio_frame_t a; + NDIlib_metadata_frame_t m; + NDIlib_frame_type_e t; + + t = NDIlib_recv_capture(ctx->recv, &v, &a, &m, 40); + + if (NDIlib_frame_type_video == t) + ndi_enqeue_video(ctx, &v); + else if (NDIlib_frame_type_audio == t) + ndi_enqeue_audio(ctx, &a); + else if (NDIlib_frame_type_metadata == t) + NDIlib_recv_free_metadata(ctx->recv, &m); + }; + + return NULL; +}; + +static int ndi_find_sources(AVFormatContext *avctx, const char* name, NDIlib_source_t *source_to_connect_to) +{ + unsigned int n, i, j = -1; + struct ndi_ctx *ctx = (struct ndi_ctx *)avctx->priv_data; + const NDIlib_source_t* ndi_srcs = NULL; + const NDIlib_find_create_t find_create_desc = { true, NULL }; + NDIlib_find_instance_t ndi_find; + + ndi_find = NDIlib_find_create2( &find_create_desc ); + if (!ndi_find) { + av_log(avctx, AV_LOG_ERROR, "NDIlib_find_create failed.\n"); + return AVERROR(EIO); + } + + NDIlib_find_wait_for_sources(ndi_find, ctx->wait_sources); + ndi_srcs = NDIlib_find_get_current_sources(ndi_find, &n); + + av_log(avctx, AV_LOG_INFO, "Found %d NDI sources:\n", n); + for (i = 0; i < n; i++) + { + av_log(avctx, AV_LOG_INFO, "\t'%s'\t'%s'\n", ndi_srcs[i].p_ndi_name, ndi_srcs[i].p_ip_address); + if (!strcmp(name, ndi_srcs[i].p_ndi_name)) { + *source_to_connect_to = ndi_srcs[i]; + j = i; + } + } + + NDIlib_find_destroy(ndi_find); + + return j; +} + +static int ndi_read_header(AVFormatContext *avctx) +{ + int ret, i; + AVStream *st; + NDIlib_recv_create_t recv_create_desc; + const NDIlib_tally_t tally_state = { true, false }; + struct ndi_ctx *ctx = (struct ndi_ctx *)avctx->priv_data; + + ctx->avctx = avctx; + + if (!NDIlib_initialize()) { + av_log(avctx, AV_LOG_ERROR, "NDIlib_initialize failed.\n"); + return AVERROR(EIO); + } + + /* Find available sources. */ + ret = ndi_find_sources(avctx, avctx->filename, &recv_create_desc.source_to_connect_to); + if (ctx->find_sources) { + return AVERROR_EXIT; + } + if (ret < 0) { + return AVERROR(ENOENT); + } + + /* Create receiver description */ + recv_create_desc.color_format = NDIlib_recv_color_format_e_UYVY_RGBA; + recv_create_desc.bandwidth = NDIlib_recv_bandwidth_highest; + recv_create_desc.allow_video_fields = ctx->allow_video_fields; + + /* Create the receiver */ + ctx->recv = NDIlib_recv_create2(&recv_create_desc); + if (!ctx->recv) { + av_log(avctx, AV_LOG_ERROR, "NDIlib_recv_create2 failed.\n"); + return AVERROR(EIO); + } + + /* Set tally */ + NDIlib_recv_set_tally(ctx->recv, &tally_state); + + avpacket_queue_init(avctx, &ctx->queue); + + /* Probe input */ + for (ret = 0, i = 0; i < ctx->max_frames_probe; i++) + { + NDIlib_video_frame_t v; + NDIlib_audio_frame_t a; + NDIlib_metadata_frame_t m; + NDIlib_frame_type_e t; + + t = NDIlib_recv_capture(ctx->recv, &v, &a, &m, 40); + + av_log(avctx, AV_LOG_DEBUG, "NDIlib_recv_capture[%d]=%d.\n", i, t); + + if (NDIlib_frame_type_video == t) { + if (!ctx->video_st) { + + st = avformat_new_stream(avctx, NULL); + if (!st) { + av_log(avctx, AV_LOG_ERROR, "Cannot add stream\n"); + ret = AVERROR(ENOMEM); + goto error; + } + + st->time_base.den = v.frame_rate_N; + st->time_base.num = v.frame_rate_D; + av_stream_set_r_frame_rate(st, av_make_q(st->time_base.den, st->time_base.num)); + st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO; + st->codecpar->width = v.xres; + st->codecpar->height = v.yres; + st->codecpar->codec_id = AV_CODEC_ID_RAWVIDEO; + st->codecpar->bit_rate = av_rescale(v.xres * v.yres * 16, st->time_base.den, st->time_base.num); + + if (NDIlib_FourCC_type_UYVY == v.FourCC || NDIlib_FourCC_type_UYVA == v.FourCC) { + st->codecpar->format = AV_PIX_FMT_UYVY422; + st->codecpar->codec_tag = MKTAG('U', 'Y', 'V', 'Y'); + } else if (NDIlib_FourCC_type_BGRA == v.FourCC) { + st->codecpar->format = AV_PIX_FMT_BGRA; + st->codecpar->codec_tag = MKTAG('B', 'G', 'R', 'A'); + } else if (NDIlib_FourCC_type_BGRX == v.FourCC) { + st->codecpar->format = AV_PIX_FMT_BGR0; + st->codecpar->codec_tag = MKTAG('B', 'G', 'R', '0'); + } else if (NDIlib_FourCC_type_RGBA == v.FourCC) { + st->codecpar->format = AV_PIX_FMT_RGBA; + st->codecpar->codec_tag = MKTAG('R', 'G', 'B', 'A'); + } else if (NDIlib_FourCC_type_RGBX == v.FourCC) { + st->codecpar->format = AV_PIX_FMT_RGB0; + st->codecpar->codec_tag = MKTAG('R', 'G', 'B', '0'); + } else { + av_log(avctx, AV_LOG_ERROR, "Unsupported video stream format, v.FourCC=%d\n", v.FourCC); + ret = AVERROR(ENOTSUP); + goto error; + } + + ctx->interlaced = v.frame_format_type == NDIlib_frame_format_type_interleaved ? 1 : 0; + + avpriv_set_pts_info(st, 64, v.frame_rate_D, v.frame_rate_N); + + ctx->video_st = st; + } + + ndi_enqeue_video(ctx, &v); + } else if (NDIlib_frame_type_audio == t) { + if (!ctx->audio_st) { + + st = avformat_new_stream(avctx, NULL); + if (!st) { + av_log(avctx, AV_LOG_ERROR, "Cannot add stream\n"); + ret = AVERROR(ENOMEM); + goto error; + } + + st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO; + st->codecpar->codec_id = AV_CODEC_ID_PCM_S16LE; + st->codecpar->sample_rate = a.sample_rate; + st->codecpar->channels = a.no_channels; + + avpriv_set_pts_info(st, 64, 1, a.sample_rate); /* 64 bits pts in us */ + + ctx->audio_st = st; + } + + ndi_enqeue_audio(ctx, &a); + } else if (NDIlib_frame_type_metadata == t) { + + NDIlib_recv_free_metadata(ctx->recv, &m); + } + + if (ctx->video_st && ctx->audio_st) + break; + } + + if (ctx->video_st || ctx->audio_st) + { + ctx->f_started = 1; + pthread_create(&ctx->reader, NULL, ndi_reader, ctx); + } + +error: + return ret; +} + +static int ndi_read_packet(AVFormatContext *avctx, AVPacket *pkt) +{ + struct ndi_ctx *ctx = (struct ndi_ctx *)avctx->priv_data; + + AVFrame *frame = ctx->video_st ? ctx->video_st->codec->coded_frame : NULL; + + avpacket_queue_get(&ctx->queue, pkt, 1); + + if (frame && ctx->interlaced) { + frame->interlaced_frame = 1; + frame->top_field_first = 1; + } + + return 0; + +} + +static int ndi_read_close(AVFormatContext *avctx) +{ + struct ndi_ctx *ctx = (struct ndi_ctx *)avctx->priv_data; + + if (ctx->recv) + { + if (ctx->f_started) + { + ctx->f_stop = 1; + pthread_join(ctx->reader, NULL); + } + + ctx->f_started = 0; + ctx->f_stop = 0; + + avpacket_queue_end(&ctx->queue); + NDIlib_recv_destroy(ctx->recv); + }; + + return 0; +} + +#define OFFSET(x) offsetof(struct ndi_ctx, x) +#define DEC AV_OPT_FLAG_DECODING_PARAM + +static const AVOption options[] = { + { "find_sources", "Find available sources" , OFFSET(find_sources), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, DEC }, + { "wait_sources", "Time to wait until the number of online sources have changed (ms)" , OFFSET(wait_sources), AV_OPT_TYPE_INT, { .i64 = 500 }, 100, 10000, DEC }, + { "allow_video_fields", "When this flag is FALSE, all video that you receive will be progressive" , OFFSET(allow_video_fields), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, DEC }, + { "max_frames_probe", "Maximum frames for probe" , OFFSET(max_frames_probe), AV_OPT_TYPE_INT, { .i64 = 25 }, 6, 100, DEC }, + { "reference_level", "The audio reference level in dB" , OFFSET(reference_level), AV_OPT_TYPE_INT, { .i64 = 0 }, -20, 20, DEC | AV_OPT_FLAG_AUDIO_PARAM}, + { NULL }, +}; + +static const AVClass ndi_demuxer_class = { + .class_name = "NDI demuxer", + .item_name = av_default_item_name, + .option = options, + .version = LIBAVUTIL_VERSION_INT, + .category = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT, +}; + +AVInputFormat ff_ndi_demuxer = { + .name = "ndi", + .long_name = NULL_IF_CONFIG_SMALL("NDI input"), + .flags = AVFMT_NOFILE, + .priv_class = &ndi_demuxer_class, + .priv_data_size = sizeof(struct ndi_ctx), + .read_header = ndi_read_header, + .read_packet = ndi_read_packet, + .read_close = ndi_read_close, +}; diff --git a/libavdevice/ndi_enc.c b/libavdevice/ndi_enc.c new file mode 100644 index 0000000..8cbdb9e --- /dev/null +++ b/libavdevice/ndi_enc.c @@ -0,0 +1,289 @@ +/* + * NDI output + * Copyright (c) 2017 Maksym Veremeyenko + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavformat/avformat.h" +#include "libavformat/internal.h" +#include "libavutil/opt.h" +#include "libavutil/imgutils.h" + +#include + +struct ndi_ctx { + const AVClass *cclass; + + void *ctx; + + /* Options */ + int reference_level; + + /* Streams present */ + NDIlib_video_frame_t* video; + NDIlib_audio_frame_interleaved_16s_t* audio; + + /* Status */ + int64_t last_pts; + + NDIlib_send_instance_t ndi_send; + AVFrame *last_avframe; +}; + +static int ndi_write_trailer(AVFormatContext *avctx) +{ + struct ndi_ctx *ctx = (struct ndi_ctx *)avctx->priv_data; + + if (ctx->ndi_send) + { + if (ctx->last_avframe) { + NDIlib_send_send_video_async(ctx->ndi_send, NULL); + av_frame_free(&ctx->last_avframe); + } + + NDIlib_send_destroy(ctx->ndi_send); + } + + if (ctx->video) + av_freep(&ctx->video); + + if (ctx->audio) + av_freep(&ctx->audio); + + return 0; +} + +static int ndi_write_video_packet(AVFormatContext *avctx, AVStream *st, AVPacket *pkt) +{ + struct ndi_ctx *ctx = (struct ndi_ctx *)avctx->priv_data; + AVFrame *avframe, *tmp = (AVFrame *)pkt->data; + + if (tmp->format != AV_PIX_FMT_UYVY422 || + tmp->width != ctx->video->xres || + tmp->height != ctx->video->yres) { + av_log(avctx, AV_LOG_ERROR, "Got a frame with invalid pixel format or dimension.\n"); + av_log(avctx, AV_LOG_ERROR, "tmp->width=%d, tmp->height=%d, ctx->video->xres=%d, ctx->video->yres=%d\n", tmp->width, tmp->height, ctx->video->xres, ctx->video->yres); + return AVERROR(EINVAL); + } + avframe = av_frame_clone(tmp); + if (!avframe) { + av_log(avctx, AV_LOG_ERROR, "Could not clone video frame.\n"); + return AVERROR(EIO); + } + + ctx->video->timecode = av_rescale_q(pkt->pts, st->time_base, (AVRational){1, 10000000LL}); + + ctx->video->line_stride_in_bytes = avframe->linesize[0] < 0 + ? -avframe->linesize[0] + : avframe->linesize[0]; + ctx->video->p_data = (avframe->linesize[0] < 0) + ? (void *)(avframe->data[0] + avframe->linesize[0] * (avframe->height - 1)) + : (void *)(avframe->data[0]); + + av_log(avctx, AV_LOG_DEBUG, "%s: pkt->pts=%"PRId64", timecode=%"PRId64", st->time_base=%d/%d\n", + __FUNCTION__, pkt->pts, ctx->video->timecode, st->time_base.num, st->time_base.den); + + NDIlib_send_send_video_async(ctx->ndi_send, ctx->video); + + if (ctx->last_avframe) + av_frame_free(&ctx->last_avframe); + ctx->last_avframe = avframe; + + return 0; +} + +static int ndi_write_audio_packet(AVFormatContext *avctx, AVStream *st, AVPacket *pkt) +{ + struct ndi_ctx *ctx = (struct ndi_ctx *)avctx->priv_data; + + ctx->audio->p_data = (void*)pkt->data; + ctx->audio->timecode = av_rescale_q(pkt->pts, st->time_base, (AVRational){1, 10000000}); + ctx->audio->no_samples = pkt->size / (ctx->audio->no_channels << 1); + + av_log(avctx, AV_LOG_DEBUG, "%s: pkt->pts=%"PRId64", timecode=%"PRId64", st->time_base=%d/%d\n", + __FUNCTION__, pkt->pts, ctx->video->timecode, st->time_base.num, st->time_base.den); + + NDIlib_util_send_send_audio_interleaved_16s(ctx->ndi_send, ctx->audio); + + return 0; +} + +static int ndi_write_packet(AVFormatContext *avctx, AVPacket *pkt) +{ + struct ndi_ctx *ctx = (struct ndi_ctx *)avctx->priv_data; + AVStream *st = avctx->streams[pkt->stream_index]; + + ctx->last_pts = FFMAX(ctx->last_pts, pkt->pts); + + if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) + return ndi_write_video_packet(avctx, st, pkt); + else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) + return ndi_write_audio_packet(avctx, st, pkt); + + return AVERROR(EIO); +} + +static int ndi_setup_audio(AVFormatContext *avctx, AVStream *st) +{ + struct ndi_ctx *ctx = (struct ndi_ctx *)avctx->priv_data; + AVCodecParameters *c = st->codecpar; + + if (ctx->audio) { + av_log(avctx, AV_LOG_ERROR, "Only one audio stream is supported!\n"); + return -1; + } + if (c->sample_rate != 48000) { + av_log(avctx, AV_LOG_ERROR, "Unsupported sample rate!" + " Only 48kHz is supported.\n"); + return -1; + } + if (c->channels != 2 && c->channels != 4 && c->channels != 8) { + av_log(avctx, AV_LOG_ERROR, "Unsupported number of channels!" + " Only stereo and 7.1 are supported.\n"); + return -1; + } + + ctx->audio = (NDIlib_audio_frame_interleaved_16s_t *) av_mallocz(sizeof(NDIlib_audio_frame_interleaved_16s_t)); + + ctx->audio->sample_rate = c->sample_rate; + ctx->audio->no_channels = c->channels; + ctx->audio->reference_level = ctx->reference_level; + + /* The device expects the sample rate to be fixed. */ + avpriv_set_pts_info(st, 64, 1, c->sample_rate); + + return 0; +} + +static int ndi_setup_video(AVFormatContext *avctx, AVStream *st) +{ + struct ndi_ctx *ctx = (struct ndi_ctx *)avctx->priv_data; + AVCodecParameters *c = st->codecpar; + AVRational display_aspect_ratio; + + if (ctx->video) { + av_log(avctx, AV_LOG_ERROR, "Only one video stream is supported!\n"); + return AVERROR(ENOTSUP); + } + + if (c->codec_id != AV_CODEC_ID_WRAPPED_AVFRAME) { + av_log(avctx, AV_LOG_ERROR, "Unsupported codec format!" + " Only AV_CODEC_ID_WRAPPED_AVFRAME is supported (-vcodec wrapped_avframe).\n"); + return AVERROR(ENOTSUP); + } + + if (c->format != AV_PIX_FMT_UYVY422) { + av_log(avctx, AV_LOG_ERROR, "Unsupported pixel format!" + " Only AV_PIX_FMT_UYVY422 is supported.\n"); + return AVERROR(ENOTSUP); + } + + ctx->video = (NDIlib_video_frame_t *) av_mallocz(sizeof(NDIlib_video_frame_t)); + + ctx->video->FourCC = NDIlib_FourCC_type_UYVY; + ctx->video->xres = c->width; + ctx->video->yres = c->height; + ctx->video->frame_rate_N = st->time_base.den; + ctx->video->frame_rate_D = st->time_base.num; + ctx->video->frame_format_type = AV_FIELD_PROGRESSIVE == c->field_order + ? NDIlib_frame_format_type_progressive + : NDIlib_frame_format_type_interleaved; + + if (st->sample_aspect_ratio.num && + av_cmp_q(st->sample_aspect_ratio, st->codecpar->sample_aspect_ratio)) { + av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den, + st->codecpar->width * (int64_t)st->sample_aspect_ratio.num, + st->codecpar->height * (int64_t)st->sample_aspect_ratio.den, + 1024 * 1024); + ctx->video->picture_aspect_ratio = av_q2d(display_aspect_ratio); + } + else + ctx->video->picture_aspect_ratio = 16.0 / 9.0; + + /* The device expects the framerate to be fixed. */ + avpriv_set_pts_info(st, 64, st->time_base.num, st->time_base.den); + + return 0; +} + +static int ndi_write_header(AVFormatContext *avctx) +{ + int ret = 0; + unsigned int n; + struct ndi_ctx *ctx = (struct ndi_ctx *)avctx->priv_data; + const NDIlib_send_create_t ndi_send_desc = {avctx->filename, NULL, true, false}; + + /* check if streams compatible */ + for (n = 0; n < avctx->nb_streams; n++) { + AVStream *st = avctx->streams[n]; + AVCodecParameters *c = st->codecpar; + if (c->codec_type == AVMEDIA_TYPE_AUDIO) { + if ((ret = ndi_setup_audio(avctx, st))) + goto error; + } else if (c->codec_type == AVMEDIA_TYPE_VIDEO) { + if ((ret = ndi_setup_video(avctx, st))) + goto error; + } else { + av_log(avctx, AV_LOG_ERROR, "Unsupported stream type.\n"); + ret = AVERROR(EIO); + goto error; + } + } + + if (!NDIlib_initialize()) { + av_log(avctx, AV_LOG_ERROR, "NDIlib_initialize failed.\n"); + } else { + ctx->ndi_send = NDIlib_send_create(&ndi_send_desc); + if (!ctx->ndi_send) + av_log(avctx, AV_LOG_ERROR, "Failed to create NDI output %s\n", avctx->filename); + else + ret = 0; + } + +error: + return ret; +} + +#define OFFSET(x) offsetof(struct ndi_ctx, x) +static const AVOption options[] = { + + { "reference_level", "The audio reference level in dB" , OFFSET(reference_level), AV_OPT_TYPE_INT, { .i64 = 0 }, -20, 20, AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_AUDIO_PARAM}, + { NULL }, +}; + +static const AVClass ndi_muxer_class = { + .class_name = "NDI muxer", + .item_name = av_default_item_name, + .option = options, + .version = LIBAVUTIL_VERSION_INT, + .category = AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT, +}; + +AVOutputFormat ff_ndi_muxer = { + .name = "ndi", + .long_name = NULL_IF_CONFIG_SMALL("NDI output"), + .audio_codec = AV_CODEC_ID_PCM_S16LE, + .video_codec = AV_CODEC_ID_WRAPPED_AVFRAME, + .subtitle_codec = AV_CODEC_ID_NONE, + .flags = AVFMT_NOFILE, + .priv_class = &ndi_muxer_class, + .priv_data_size = sizeof(struct ndi_ctx), + .write_header = ndi_write_header, + .write_packet = ndi_write_packet, + .write_trailer = ndi_write_trailer, +}; -- 1.8.3.1