[FFmpeg-cvslog] lavd: implement NewTek NDI input/output device support
Maksym Veremeyenko
git at videolan.org
Sun Aug 27 19:11:55 EEST 2017
ffmpeg | branch: master | Maksym Veremeyenko <verem at m1.tv> | Fri Aug 18 09:34:06 2017 -0400| [2634927fe30ea4a821db515c6b7f77458f5c4bc5] | committer: Marton Balint
lavd: implement NewTek NDI input/output device support
Signed-off-by: Marton Balint <cus at passwd.hu>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2634927fe30ea4a821db515c6b7f77458f5c4bc5
---
Changelog | 1 +
configure | 9 +
doc/indevs.texi | 48 ++++++
doc/outdevs.texi | 45 +++++
libavdevice/Makefile | 4 +
libavdevice/alldevices.c | 1 +
libavdevice/libndi_newtek_common.h | 30 ++++
libavdevice/libndi_newtek_dec.c | 340 +++++++++++++++++++++++++++++++++++++
libavdevice/libndi_newtek_enc.c | 299 ++++++++++++++++++++++++++++++++
libavdevice/version.h | 4 +-
10 files changed, 779 insertions(+), 2 deletions(-)
diff --git a/Changelog b/Changelog
index 4eba31e1b6..1dfb8b5714 100644
--- a/Changelog
+++ b/Changelog
@@ -34,6 +34,7 @@ version <next>:
- floodfill video filter
- pseudocolor video filter
- raw G.726 muxer and demuxer, left- and right-justified
+- NewTek NDI input/output device
version 3.3:
- CrystalHD decoder moved to new decode API
diff --git a/configure b/configure
index 05f6dcc99a..61d8160491 100755
--- a/configure
+++ b/configure
@@ -277,6 +277,7 @@ 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-libndi_newtek enable Newteck NDI I/O support [no]
--enable-mediacodec enable Android MediaCodec support [no]
--enable-libmysofa enable libmysofa, needed for sofalizer filter [no]
--enable-openal enable OpenAL 1.1 capture support [no]
@@ -1508,6 +1509,7 @@ EXTERNAL_LIBRARY_GPL_LIST="
EXTERNAL_LIBRARY_NONFREE_LIST="
decklink
+ libndi_newtek
libfdk_aac
openssl
"
@@ -3014,6 +3016,10 @@ decklink_indev_deps="decklink threads"
decklink_indev_extralibs="-lstdc++"
decklink_outdev_deps="decklink threads"
decklink_outdev_extralibs="-lstdc++"
+libndi_newtek_indev_deps="libndi_newtek"
+libndi_newtek_indev_extralibs="-lndi"
+libndi_newtek_outdev_deps="libndi_newtek"
+libndi_newtek_outdev_extralibs="-lndi"
dshow_indev_deps="IBaseFilter"
dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
dv1394_indev_deps="dv1394"
@@ -5567,6 +5573,8 @@ avisynth_demuxer_extralibs='$ldl'
cuda_extralibs='$ldl'
decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"
decklink_indev_extralibs="$decklink_indev_extralibs $ldl"
+libndi_newtek_outdev_extralibs="$libndi_newtek_outdev_extralibs $ldl"
+libndi_newtek_indev_extralibs="$libndi_newtek_indev_extralibs $ldl"
frei0r_filter_extralibs='$ldl'
frei0r_src_filter_extralibs='$ldl'
ladspa_filter_extralibs='$ldl'
@@ -5825,6 +5833,7 @@ 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 libndi_newtek && { 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 dc6cdb6dee..5423bed32f 100644
--- a/doc/indevs.texi
+++ b/doc/indevs.texi
@@ -332,6 +332,54 @@ ffmpeg -channels 16 -format_code Hi50 -f decklink -i 'UltraStudio Mini Recorder'
@end itemize
+ at section libndi_newtek
+
+The libndi_newtek input device provides capture capabilities for using NDI (Network
+Device Interface, standard created by NewTek).
+
+Input filename is a NDI source name that could be found by sending -find_sources 1
+to command line - it has no specific syntax but human-readable formatted.
+
+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}.
+
+ at subsection Options
+
+ at table @option
+
+ at item find_sources
+If set to @option{true}, print a list of found/available NDI sources and exit.
+Defaults to @option{false}.
+
+ at item wait_sources
+Override time to wait until the number of online sources have changed.
+Defaults to @option{0.5}.
+
+ at item allow_video_fields
+When this flag is @option{false}, all video that you receive will be progressive.
+Defaults to @option{true}.
+
+ at end table
+
+ at subsection Examples
+
+ at itemize
+
+ at item
+List input devices:
+ at example
+ffmpeg -f libndi_newtek -find_sources 1 -i dummy
+ at end example
+
+ at item
+Restream to NDI:
+ at example
+ffmpeg -f libndi_newtek -i "DEV-5.INTERNAL.M1STEREO.TV (NDI_SOURCE_NAME_1)" -f libndi_newtek -y NDI_SOURCE_NAME_2
+ at end example
+
+ at end itemize
+
@section dshow
Windows DirectShow input device.
diff --git a/doc/outdevs.texi b/doc/outdevs.texi
index df41cc868f..0012b0f04c 100644
--- a/doc/outdevs.texi
+++ b/doc/outdevs.texi
@@ -182,6 +182,51 @@ ffmpeg -i test.avi -f decklink -pix_fmt uyvy422 -s 720x486 -r 24000/1001 'DeckLi
@end itemize
+ at section libndi_newtek
+
+The libndi_newtek output device provides playback capabilities for using NDI (Network
+Device Interface, standard created by NewTek).
+
+Output filename is a NDI name.
+
+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 uses uyvy422 pixel format natively, but also supports bgra, bgr0, rgba and
+rgb0.
+
+ at subsection Options
+
+ at table @option
+
+ at 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}.
+
+ at item clock_video
+These specify whether video "clock" themselves.
+Defaults to @option{false}.
+
+ at item clock_audio
+These specify whether audio "clock" themselves.
+Defaults to @option{false}.
+
+ at end table
+
+ at subsection Examples
+
+ at itemize
+
+ at item
+Play video clip:
+ at 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" -f libndi_newtek NEW_NDI1
+ at end example
+
+ at end itemize
+
@section fbdev
Linux framebuffer output device.
diff --git a/libavdevice/Makefile b/libavdevice/Makefile
index 1d4e9e69fe..80afa61e36 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-$(CONFIG_LIBNDI_NEWTEK_OUTDEV) += libndi_newtek_enc.o
+OBJS-$(CONFIG_LIBNDI_NEWTEK_INDEV) += libndi_newtek_dec.o
OBJS-$(CONFIG_DSHOW_INDEV) += dshow_crossbar.o dshow.o dshow_enummediatypes.o \
dshow_enumpins.o dshow_filter.o \
dshow_pin.o dshow_common.o
@@ -60,6 +62,8 @@ SLIBOBJS-$(HAVE_GNU_WINDRES) += avdeviceres.o
SKIPHEADERS += decklink_common.h
SKIPHEADERS-$(CONFIG_DECKLINK) += decklink_enc.h decklink_dec.h \
decklink_common_c.h
+SKIPHEADERS-$(CONFIG_LIBNDI_NEWTEK_INDEV) += libndi_newtek_common.h
+SKIPHEADERS-$(CONFIG_LIBNDI_NEWTEK_OUTDEV) += libndi_newtek_common.h
SKIPHEADERS-$(CONFIG_DSHOW_INDEV) += dshow_capture.h
SKIPHEADERS-$(CONFIG_FBDEV_INDEV) += fbdev_common.h
SKIPHEADERS-$(CONFIG_FBDEV_OUTDEV) += fbdev_common.h
diff --git a/libavdevice/alldevices.c b/libavdevice/alldevices.c
index a8ed53ae5d..8d1cb8648f 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(LIBNDI_NEWTEK, libndi_newtek);
REGISTER_INDEV (DSHOW, dshow);
REGISTER_INDEV (DV1394, dv1394);
REGISTER_INOUTDEV(FBDEV, fbdev);
diff --git a/libavdevice/libndi_newtek_common.h b/libavdevice/libndi_newtek_common.h
new file mode 100644
index 0000000000..899031707d
--- /dev/null
+++ b/libavdevice/libndi_newtek_common.h
@@ -0,0 +1,30 @@
+/*
+ * NewTek NDI common code
+ * 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
+ */
+
+#ifndef AVDEVICE_LIBNDI_NEWTEK_COMMON_H
+#define AVDEVICE_LIBNDI_NEWTEK_COMMON_H
+
+#include <Processing.NDI.Lib.h>
+
+#define NDI_TIME_BASE 10000000
+#define NDI_TIME_BASE_Q (AVRational){1, NDI_TIME_BASE}
+
+#endif
diff --git a/libavdevice/libndi_newtek_dec.c b/libavdevice/libndi_newtek_dec.c
new file mode 100644
index 0000000000..8cbcd9a1d2
--- /dev/null
+++ b/libavdevice/libndi_newtek_dec.c
@@ -0,0 +1,340 @@
+/*
+ * Newtek 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 "libndi_newtek_common.h"
+
+struct NDIContext {
+ const AVClass *cclass;
+
+ /* Options */
+ int find_sources;
+ int64_t wait_sources;
+ int allow_video_fields;
+
+ /* Runtime */
+ NDIlib_recv_create_t *recv;
+ NDIlib_find_instance_t ndi_find;
+
+ /* Streams */
+ AVStream *video_st, *audio_st;
+};
+
+static int ndi_set_video_packet(AVFormatContext *avctx, NDIlib_video_frame_t *v, AVPacket *pkt)
+{
+ int ret;
+ struct NDIContext *ctx = avctx->priv_data;
+
+ ret = av_new_packet(pkt, v->yres * v->line_stride_in_bytes);
+ if (ret < 0)
+ return ret;
+
+ pkt->dts = pkt->pts = av_rescale_q(v->timecode, NDI_TIME_BASE_Q, 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(avctx, AV_LOG_DEBUG, "%s: pkt->dts = pkt->pts = %"PRId64", duration=%"PRId64", timecode=%"PRId64"\n",
+ __func__, pkt->dts, pkt->duration, v->timecode);
+
+ pkt->flags |= AV_PKT_FLAG_KEY;
+ pkt->stream_index = ctx->video_st->index;
+
+ memcpy(pkt->data, v->p_data, pkt->size);
+
+ return 0;
+}
+
+static int ndi_set_audio_packet(AVFormatContext *avctx, NDIlib_audio_frame_t *a, AVPacket *pkt)
+{
+ int ret;
+ struct NDIContext *ctx = avctx->priv_data;
+
+ NDIlib_audio_frame_interleaved_16s_t dst;
+
+ ret = av_new_packet(pkt, 2 * a->no_samples * a->no_channels);
+ if (ret < 0)
+ return ret;
+
+ pkt->dts = pkt->pts = av_rescale_q(a->timecode, NDI_TIME_BASE_Q, 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(avctx, AV_LOG_DEBUG, "%s: pkt->dts = pkt->pts = %"PRId64", duration=%"PRId64", timecode=%"PRId64"\n",
+ __func__, pkt->dts, pkt->duration, a->timecode);
+
+ 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);
+
+ return 0;
+}
+
+static int ndi_find_sources(AVFormatContext *avctx, const char *name, NDIlib_source_t *source_to_connect_to)
+{
+ int j = AVERROR(ENODEV);
+ unsigned int n, i;
+ struct NDIContext *ctx = avctx->priv_data;
+ const NDIlib_source_t *ndi_srcs = NULL;
+ const NDIlib_find_create_t find_create_desc = { .show_local_sources = true,
+ .p_groups = NULL, .p_extra_ips = NULL };
+
+ if (!ctx->ndi_find)
+ ctx->ndi_find = NDIlib_find_create2(&find_create_desc);
+ if (!ctx->ndi_find) {
+ av_log(avctx, AV_LOG_ERROR, "NDIlib_find_create failed.\n");
+ return AVERROR(EIO);
+ }
+
+ while (1)
+ {
+ int f, t = ctx->wait_sources / 1000;
+ av_log(avctx, AV_LOG_DEBUG, "Waiting for sources %d miliseconds\n", t);
+ f = NDIlib_find_wait_for_sources(ctx->ndi_find, t);
+ av_log(avctx, AV_LOG_DEBUG, "NDIlib_find_wait_for_sources returns %d\n", f);
+ if (!f)
+ break;
+ };
+
+ ndi_srcs = NDIlib_find_get_current_sources(ctx->ndi_find, &n);
+
+ if (ctx->find_sources)
+ av_log(avctx, AV_LOG_INFO, "Found %d NDI sources:\n", n);
+
+ for (i = 0; i < n; i++) {
+ if (ctx->find_sources)
+ 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;
+ }
+ }
+
+ return j;
+}
+
+static int ndi_read_header(AVFormatContext *avctx)
+{
+ int ret;
+ NDIlib_recv_create_t recv_create_desc;
+ const NDIlib_tally_t tally_state = { .on_program = true, .on_preview = false };
+ struct NDIContext *ctx = avctx->priv_data;
+
+ if (!NDIlib_initialize()) {
+ av_log(avctx, AV_LOG_ERROR, "NDIlib_initialize failed.\n");
+ return AVERROR_EXTERNAL;
+ }
+
+ /* 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 ret;
+
+ /* 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_create(&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);
+
+ avctx->ctx_flags |= AVFMTCTX_NOHEADER;
+
+ return 0;
+}
+
+static int ndi_create_video_stream(AVFormatContext *avctx, NDIlib_video_frame_t *v)
+{
+ AVStream *st;
+ AVRational tmp;
+ struct NDIContext *ctx = avctx->priv_data;
+
+ st = avformat_new_stream(avctx, NULL);
+ if (!st) {
+ av_log(avctx, AV_LOG_ERROR, "Cannot add video stream\n");
+ return AVERROR(ENOMEM);
+ }
+
+ st->time_base = NDI_TIME_BASE_Q;
+ av_stream_set_r_frame_rate(st, av_make_q(v->frame_rate_N, v->frame_rate_D));
+
+ tmp = av_mul_q(av_d2q(v->picture_aspect_ratio, INT_MAX), (AVRational){v->yres, v->xres});
+ av_reduce(&st->sample_aspect_ratio.num, &st->sample_aspect_ratio.den, tmp.num, tmp.den, 1000);
+ st->codecpar->sample_aspect_ratio = st->sample_aspect_ratio;
+
+ 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, v->frame_rate_N, v->frame_rate_D);
+ st->codecpar->field_order = v->frame_format_type == NDIlib_frame_format_type_progressive
+ ? AV_FIELD_PROGRESSIVE : AV_FIELD_TT;
+
+ 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');
+ if (NDIlib_FourCC_type_UYVA == v->FourCC)
+ av_log(avctx, AV_LOG_WARNING, "Alpha channel ignored\n");
+ } 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);
+ return AVERROR(EINVAL);
+ }
+
+ avpriv_set_pts_info(st, 64, 1, NDI_TIME_BASE);
+
+ ctx->video_st = st;
+
+ return 0;
+}
+
+static int ndi_create_audio_stream(AVFormatContext *avctx, NDIlib_audio_frame_t *a)
+{
+ AVStream *st;
+ struct NDIContext *ctx = avctx->priv_data;
+
+ st = avformat_new_stream(avctx, NULL);
+ if (!st) {
+ av_log(avctx, AV_LOG_ERROR, "Cannot add audio stream\n");
+ return AVERROR(ENOMEM);
+ }
+
+ 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, NDI_TIME_BASE);
+
+ ctx->audio_st = st;
+
+ return 0;
+}
+
+static int ndi_read_packet(AVFormatContext *avctx, AVPacket *pkt)
+{
+ int ret = 0;
+ struct NDIContext *ctx = avctx->priv_data;
+
+ while (!ret) {
+ NDIlib_video_frame_t v;
+ NDIlib_audio_frame_t a;
+ NDIlib_metadata_frame_t m;
+ NDIlib_frame_type_e t;
+
+ av_log(avctx, AV_LOG_DEBUG, "NDIlib_recv_capture...\n");
+ t = NDIlib_recv_capture(ctx->recv, &v, &a, &m, 40);
+ av_log(avctx, AV_LOG_DEBUG, "NDIlib_recv_capture=%d\n", t);
+
+ if (t == NDIlib_frame_type_video) {
+ if (!ctx->video_st)
+ ret = ndi_create_video_stream(avctx, &v);
+ if (!ret)
+ ret = ndi_set_video_packet(avctx, &v, pkt);
+ NDIlib_recv_free_video(ctx->recv, &v);
+ break;
+ }
+ else if (t == NDIlib_frame_type_audio) {
+ if (!ctx->audio_st)
+ ret = ndi_create_audio_stream(avctx, &a);
+ if (!ret)
+ ret = ndi_set_audio_packet(avctx, &a, pkt);
+ NDIlib_recv_free_audio(ctx->recv, &a);
+ break;
+ }
+ else if (t == NDIlib_frame_type_metadata)
+ NDIlib_recv_free_metadata(ctx->recv, &m);
+ else if (t == NDIlib_frame_type_error){
+ av_log(avctx, AV_LOG_ERROR, "NDIlib_recv_capture failed with error\n");
+ ret = AVERROR(EIO);
+ }
+ };
+
+ return ret;
+}
+
+static int ndi_read_close(AVFormatContext *avctx)
+{
+ struct NDIContext *ctx = (struct NDIContext *)avctx->priv_data;
+
+ if (ctx->recv)
+ NDIlib_recv_destroy(ctx->recv);
+
+ if (ctx->ndi_find)
+ NDIlib_find_destroy(ctx->ndi_find);
+
+ return 0;
+}
+
+#define OFFSET(x) offsetof(struct NDIContext, x)
+#define DEC AV_OPT_FLAG_DECODING_PARAM
+
+static const AVOption options[] = {
+ { "find_sources", "Find available sources" , OFFSET(find_sources), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, DEC },
+ { "wait_sources", "Time to wait until the number of online sources have changed" , OFFSET(wait_sources), AV_OPT_TYPE_DURATION, { .i64 = 1000000 }, 100000, 20000000, DEC },
+ { "allow_video_fields", "When this flag is FALSE, all video that you receive will be progressive" , OFFSET(allow_video_fields), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, DEC },
+ { NULL },
+};
+
+static const AVClass libndi_newtek_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_libndi_newtek_demuxer = {
+ .name = "libndi_newtek",
+ .long_name = NULL_IF_CONFIG_SMALL("Network Device Interface (NDI) input using NewTek library"),
+ .flags = AVFMT_NOFILE,
+ .priv_class = &libndi_newtek_demuxer_class,
+ .priv_data_size = sizeof(struct NDIContext),
+ .read_header = ndi_read_header,
+ .read_packet = ndi_read_packet,
+ .read_close = ndi_read_close,
+};
diff --git a/libavdevice/libndi_newtek_enc.c b/libavdevice/libndi_newtek_enc.c
new file mode 100644
index 0000000000..6ca6f41b73
--- /dev/null
+++ b/libavdevice/libndi_newtek_enc.c
@@ -0,0 +1,299 @@
+/*
+ * NewTek 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 "libndi_newtek_common.h"
+
+struct NDIContext {
+ const AVClass *cclass;
+
+ /* Options */
+ int reference_level;
+ int clock_video, clock_audio;
+
+ NDIlib_video_frame_t *video;
+ NDIlib_audio_frame_interleaved_16s_t *audio;
+ NDIlib_send_instance_t ndi_send;
+ AVFrame *last_avframe;
+};
+
+static int ndi_write_trailer(AVFormatContext *avctx)
+{
+ struct NDIContext *ctx = avctx->priv_data;
+
+ if (ctx->ndi_send) {
+ NDIlib_send_destroy(ctx->ndi_send);
+ av_frame_free(&ctx->last_avframe);
+ }
+
+ av_freep(&ctx->video);
+ av_freep(&ctx->audio);
+
+ return 0;
+}
+
+static int ndi_write_video_packet(AVFormatContext *avctx, AVStream *st, AVPacket *pkt)
+{
+ struct NDIContext *ctx = avctx->priv_data;
+ AVFrame *avframe, *tmp = (AVFrame *)pkt->data;
+
+ if (tmp->format != AV_PIX_FMT_UYVY422 && tmp->format != AV_PIX_FMT_BGRA &&
+ tmp->format != AV_PIX_FMT_BGR0 && tmp->format != AV_PIX_FMT_RGBA &&
+ tmp->format != AV_PIX_FMT_RGB0) {
+ av_log(avctx, AV_LOG_ERROR, "Got a frame with invalid pixel format.\n");
+ return AVERROR(EINVAL);
+ }
+
+ if (tmp->linesize[0] < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Got a frame with negative linesize.\n");
+ return AVERROR(EINVAL);
+ }
+
+ if (tmp->width != ctx->video->xres ||
+ tmp->height != ctx->video->yres) {
+ av_log(avctx, AV_LOG_ERROR, "Got a frame with invalid 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)
+ return AVERROR(ENOMEM);
+
+ ctx->video->timecode = av_rescale_q(pkt->pts, st->time_base, NDI_TIME_BASE_Q);
+
+ ctx->video->line_stride_in_bytes = avframe->linesize[0];
+ ctx->video->p_data = (void *)(avframe->data[0]);
+
+ av_log(avctx, AV_LOG_DEBUG, "%s: pkt->pts=%"PRId64", timecode=%"PRId64", st->time_base=%d/%d\n",
+ __func__, pkt->pts, ctx->video->timecode, st->time_base.num, st->time_base.den);
+
+ /* asynchronous for one frame, but will block if a second frame
+ is given before the first one has been sent */
+ NDIlib_send_send_video_async(ctx->ndi_send, ctx->video);
+
+ 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 NDIContext *ctx = avctx->priv_data;
+
+ ctx->audio->p_data = (short *)pkt->data;
+ ctx->audio->timecode = av_rescale_q(pkt->pts, st->time_base, NDI_TIME_BASE_Q);
+ 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",
+ __func__, pkt->pts, ctx->audio->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)
+{
+ AVStream *st = avctx->streams[pkt->stream_index];
+
+ 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_BUG;
+}
+
+static int ndi_setup_audio(AVFormatContext *avctx, AVStream *st)
+{
+ struct NDIContext *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 AVERROR(EINVAL);
+ }
+
+ ctx->audio = av_mallocz(sizeof(NDIlib_audio_frame_interleaved_16s_t));
+ if (!ctx->audio)
+ return AVERROR(ENOMEM);
+
+ ctx->audio->sample_rate = c->sample_rate;
+ ctx->audio->no_channels = c->channels;
+ ctx->audio->reference_level = ctx->reference_level;
+
+ avpriv_set_pts_info(st, 64, 1, NDI_TIME_BASE);
+
+ return 0;
+}
+
+static int ndi_setup_video(AVFormatContext *avctx, AVStream *st)
+{
+ struct NDIContext *ctx = avctx->priv_data;
+ AVCodecParameters *c = st->codecpar;
+
+ if (ctx->video) {
+ av_log(avctx, AV_LOG_ERROR, "Only one video stream is supported!\n");
+ return AVERROR(EINVAL);
+ }
+
+ 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(EINVAL);
+ }
+
+ if (c->format != AV_PIX_FMT_UYVY422 && c->format != AV_PIX_FMT_BGRA &&
+ c->format != AV_PIX_FMT_BGR0 && c->format != AV_PIX_FMT_RGBA &&
+ c->format != AV_PIX_FMT_RGB0) {
+ av_log(avctx, AV_LOG_ERROR, "Unsupported pixel format!"
+ " Only AV_PIX_FMT_UYVY422, AV_PIX_FMT_BGRA, AV_PIX_FMT_BGR0,"
+ " AV_PIX_FMT_RGBA, AV_PIX_FMT_RGB0 is supported.\n");
+ return AVERROR(EINVAL);
+ }
+
+ if (c->field_order == AV_FIELD_BB || c->field_order == AV_FIELD_BT) {
+ av_log(avctx, AV_LOG_ERROR, "Lower field-first disallowed");
+ return AVERROR(EINVAL);
+ }
+
+ ctx->video = av_mallocz(sizeof(NDIlib_video_frame_t));
+ if (!ctx->video)
+ return AVERROR(ENOMEM);
+
+ switch(c->format) {
+ case AV_PIX_FMT_UYVY422:
+ ctx->video->FourCC = NDIlib_FourCC_type_UYVY;
+ break;
+ case AV_PIX_FMT_BGRA:
+ ctx->video->FourCC = NDIlib_FourCC_type_BGRA;
+ break;
+ case AV_PIX_FMT_BGR0:
+ ctx->video->FourCC = NDIlib_FourCC_type_BGRX;
+ break;
+ case AV_PIX_FMT_RGBA:
+ ctx->video->FourCC = NDIlib_FourCC_type_RGBA;
+ break;
+ case AV_PIX_FMT_RGB0:
+ ctx->video->FourCC = NDIlib_FourCC_type_RGBX;
+ break;
+ }
+
+ ctx->video->xres = c->width;
+ ctx->video->yres = c->height;
+ ctx->video->frame_rate_N = st->avg_frame_rate.num;
+ ctx->video->frame_rate_D = st->avg_frame_rate.den;
+ ctx->video->frame_format_type = c->field_order == AV_FIELD_PROGRESSIVE
+ ? NDIlib_frame_format_type_progressive
+ : NDIlib_frame_format_type_interleaved;
+
+ if (st->sample_aspect_ratio.num) {
+ AVRational display_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 = (double)st->codecpar->width/st->codecpar->height;
+
+ avpriv_set_pts_info(st, 64, 1, NDI_TIME_BASE);
+
+ return 0;
+}
+
+static int ndi_write_header(AVFormatContext *avctx)
+{
+ int ret = 0;
+ unsigned int n;
+ struct NDIContext *ctx = avctx->priv_data;
+ const NDIlib_send_create_t ndi_send_desc = { .p_ndi_name = avctx->filename,
+ .p_groups = NULL, .clock_video = ctx->clock_video, .clock_audio = ctx->clock_audio };
+
+ if (!NDIlib_initialize()) {
+ av_log(avctx, AV_LOG_ERROR, "NDIlib_initialize failed.\n");
+ return AVERROR_EXTERNAL;
+ }
+
+ /* 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(EINVAL);
+ goto error;
+ }
+ }
+
+ 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);
+ ret = AVERROR_EXTERNAL;
+ }
+
+error:
+ return ret;
+}
+
+#define OFFSET(x) offsetof(struct NDIContext, 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},
+ { "clock_video", "These specify whether video 'clock' themselves" , OFFSET(clock_video), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM },
+ { "clock_audio", "These specify whether audio 'clock' themselves" , OFFSET(clock_audio), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_AUDIO_PARAM },
+ { NULL },
+};
+
+static const AVClass libndi_newtek_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_libndi_newtek_muxer = {
+ .name = "libndi_newtek",
+ .long_name = NULL_IF_CONFIG_SMALL("Network Device Interface (NDI) output using NewTek library"),
+ .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 = &libndi_newtek_muxer_class,
+ .priv_data_size = sizeof(struct NDIContext),
+ .write_header = ndi_write_header,
+ .write_packet = ndi_write_packet,
+ .write_trailer = ndi_write_trailer,
+};
diff --git a/libavdevice/version.h b/libavdevice/version.h
index e0d3680578..948e4e1e08 100644
--- a/libavdevice/version.h
+++ b/libavdevice/version.h
@@ -28,8 +28,8 @@
#include "libavutil/version.h"
#define LIBAVDEVICE_VERSION_MAJOR 57
-#define LIBAVDEVICE_VERSION_MINOR 7
-#define LIBAVDEVICE_VERSION_MICRO 101
+#define LIBAVDEVICE_VERSION_MINOR 8
+#define LIBAVDEVICE_VERSION_MICRO 100
#define LIBAVDEVICE_VERSION_INT AV_VERSION_INT(LIBAVDEVICE_VERSION_MAJOR, \
LIBAVDEVICE_VERSION_MINOR, \
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