mirror of https://github.com/FFmpeg/FFmpeg.git
Carl Eugen Hoyos
6 years ago
committed by
Kieran Kunhya
parent
6b5ea90eac
commit
4b32f8b3eb
10 changed files with 3 additions and 796 deletions
@ -1,30 +0,0 @@ |
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/*
|
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* NewTek NDI common code |
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* Copyright (c) 2017 Maksym Veremeyenko |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVDEVICE_LIBNDI_NEWTEK_COMMON_H |
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#define AVDEVICE_LIBNDI_NEWTEK_COMMON_H |
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#include <Processing.NDI.Lib.h> |
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#define NDI_TIME_BASE 10000000 |
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#define NDI_TIME_BASE_Q (AVRational){1, NDI_TIME_BASE} |
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#endif |
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@ -1,342 +0,0 @@ |
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/*
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* Newtek NDI input |
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* Copyright (c) 2017 Maksym Veremeyenko |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "libavformat/avformat.h" |
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#include "libavformat/internal.h" |
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#include "libavutil/opt.h" |
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#include "libavutil/imgutils.h" |
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#include "libndi_newtek_common.h" |
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struct NDIContext { |
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const AVClass *cclass; |
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/* Options */ |
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int find_sources; |
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int64_t wait_sources; |
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int allow_video_fields; |
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char *extra_ips; |
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/* Runtime */ |
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NDIlib_recv_create_t *recv; |
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NDIlib_find_instance_t ndi_find; |
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/* Streams */ |
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AVStream *video_st, *audio_st; |
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}; |
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static int ndi_set_video_packet(AVFormatContext *avctx, NDIlib_video_frame_t *v, AVPacket *pkt) |
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{ |
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int ret; |
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struct NDIContext *ctx = avctx->priv_data; |
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ret = av_new_packet(pkt, v->yres * v->line_stride_in_bytes); |
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if (ret < 0) |
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return ret; |
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pkt->dts = pkt->pts = av_rescale_q(v->timecode, NDI_TIME_BASE_Q, ctx->video_st->time_base); |
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pkt->duration = av_rescale_q(1, (AVRational){v->frame_rate_D, v->frame_rate_N}, ctx->video_st->time_base); |
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av_log(avctx, AV_LOG_DEBUG, "%s: pkt->dts = pkt->pts = %"PRId64", duration=%"PRId64", timecode=%"PRId64"\n", |
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__func__, pkt->dts, pkt->duration, v->timecode); |
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pkt->flags |= AV_PKT_FLAG_KEY; |
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pkt->stream_index = ctx->video_st->index; |
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memcpy(pkt->data, v->p_data, pkt->size); |
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return 0; |
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} |
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static int ndi_set_audio_packet(AVFormatContext *avctx, NDIlib_audio_frame_t *a, AVPacket *pkt) |
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{ |
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int ret; |
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struct NDIContext *ctx = avctx->priv_data; |
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NDIlib_audio_frame_interleaved_16s_t dst; |
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ret = av_new_packet(pkt, 2 * a->no_samples * a->no_channels); |
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if (ret < 0) |
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return ret; |
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pkt->dts = pkt->pts = av_rescale_q(a->timecode, NDI_TIME_BASE_Q, ctx->audio_st->time_base); |
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pkt->duration = av_rescale_q(1, (AVRational){a->no_samples, a->sample_rate}, ctx->audio_st->time_base); |
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av_log(avctx, AV_LOG_DEBUG, "%s: pkt->dts = pkt->pts = %"PRId64", duration=%"PRId64", timecode=%"PRId64"\n", |
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__func__, pkt->dts, pkt->duration, a->timecode); |
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pkt->flags |= AV_PKT_FLAG_KEY; |
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pkt->stream_index = ctx->audio_st->index; |
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dst.reference_level = 0; |
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dst.p_data = (short *)pkt->data; |
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NDIlib_util_audio_to_interleaved_16s(a, &dst); |
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return 0; |
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} |
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static int ndi_find_sources(AVFormatContext *avctx, const char *name, NDIlib_source_t *source_to_connect_to) |
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{ |
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int j = AVERROR(ENODEV); |
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unsigned int n, i; |
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struct NDIContext *ctx = avctx->priv_data; |
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const NDIlib_source_t *ndi_srcs = NULL; |
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const NDIlib_find_create_t find_create_desc = { .show_local_sources = true, |
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.p_groups = NULL, .p_extra_ips = ctx->extra_ips }; |
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if (!ctx->ndi_find) |
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ctx->ndi_find = NDIlib_find_create2(&find_create_desc); |
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if (!ctx->ndi_find) { |
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av_log(avctx, AV_LOG_ERROR, "NDIlib_find_create failed.\n"); |
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return AVERROR(EIO); |
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} |
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while (1) |
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{ |
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int f, t = ctx->wait_sources / 1000; |
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av_log(avctx, AV_LOG_DEBUG, "Waiting for sources %d miliseconds\n", t); |
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f = NDIlib_find_wait_for_sources(ctx->ndi_find, t); |
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av_log(avctx, AV_LOG_DEBUG, "NDIlib_find_wait_for_sources returns %d\n", f); |
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if (!f) |
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break; |
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}; |
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ndi_srcs = NDIlib_find_get_current_sources(ctx->ndi_find, &n); |
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if (ctx->find_sources) |
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av_log(avctx, AV_LOG_INFO, "Found %d NDI sources:\n", n); |
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for (i = 0; i < n; i++) { |
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if (ctx->find_sources) |
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av_log(avctx, AV_LOG_INFO, "\t'%s'\t'%s'\n", ndi_srcs[i].p_ndi_name, ndi_srcs[i].p_ip_address); |
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if (!strcmp(name, ndi_srcs[i].p_ndi_name)) { |
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*source_to_connect_to = ndi_srcs[i]; |
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j = i; |
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} |
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} |
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return j; |
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} |
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static int ndi_read_header(AVFormatContext *avctx) |
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{ |
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int ret; |
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NDIlib_recv_create_t recv_create_desc; |
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const NDIlib_tally_t tally_state = { .on_program = true, .on_preview = false }; |
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struct NDIContext *ctx = avctx->priv_data; |
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if (!NDIlib_initialize()) { |
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av_log(avctx, AV_LOG_ERROR, "NDIlib_initialize failed.\n"); |
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return AVERROR_EXTERNAL; |
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} |
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/* Find available sources. */ |
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ret = ndi_find_sources(avctx, avctx->url, &recv_create_desc.source_to_connect_to); |
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if (ctx->find_sources) { |
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return AVERROR_EXIT; |
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} |
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if (ret < 0) |
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return ret; |
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/* Create receiver description */ |
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recv_create_desc.color_format = NDIlib_recv_color_format_e_UYVY_RGBA; |
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recv_create_desc.bandwidth = NDIlib_recv_bandwidth_highest; |
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recv_create_desc.allow_video_fields = ctx->allow_video_fields; |
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/* Create the receiver */ |
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ctx->recv = NDIlib_recv_create(&recv_create_desc); |
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if (!ctx->recv) { |
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av_log(avctx, AV_LOG_ERROR, "NDIlib_recv_create2 failed.\n"); |
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return AVERROR(EIO); |
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} |
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/* Set tally */ |
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NDIlib_recv_set_tally(ctx->recv, &tally_state); |
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avctx->ctx_flags |= AVFMTCTX_NOHEADER; |
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return 0; |
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} |
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static int ndi_create_video_stream(AVFormatContext *avctx, NDIlib_video_frame_t *v) |
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{ |
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AVStream *st; |
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AVRational tmp; |
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struct NDIContext *ctx = avctx->priv_data; |
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st = avformat_new_stream(avctx, NULL); |
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if (!st) { |
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av_log(avctx, AV_LOG_ERROR, "Cannot add video stream\n"); |
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return AVERROR(ENOMEM); |
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} |
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st->time_base = NDI_TIME_BASE_Q; |
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st->r_frame_rate = av_make_q(v->frame_rate_N, v->frame_rate_D); |
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tmp = av_mul_q(av_d2q(v->picture_aspect_ratio, INT_MAX), (AVRational){v->yres, v->xres}); |
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av_reduce(&st->sample_aspect_ratio.num, &st->sample_aspect_ratio.den, tmp.num, tmp.den, 1000); |
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st->codecpar->sample_aspect_ratio = st->sample_aspect_ratio; |
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st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO; |
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st->codecpar->width = v->xres; |
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st->codecpar->height = v->yres; |
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st->codecpar->codec_id = AV_CODEC_ID_RAWVIDEO; |
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st->codecpar->bit_rate = av_rescale(v->xres * v->yres * 16, v->frame_rate_N, v->frame_rate_D); |
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st->codecpar->field_order = v->frame_format_type == NDIlib_frame_format_type_progressive |
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? AV_FIELD_PROGRESSIVE : AV_FIELD_TT; |
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if (NDIlib_FourCC_type_UYVY == v->FourCC || NDIlib_FourCC_type_UYVA == v->FourCC) { |
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st->codecpar->format = AV_PIX_FMT_UYVY422; |
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st->codecpar->codec_tag = MKTAG('U', 'Y', 'V', 'Y'); |
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if (NDIlib_FourCC_type_UYVA == v->FourCC) |
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av_log(avctx, AV_LOG_WARNING, "Alpha channel ignored\n"); |
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} else if (NDIlib_FourCC_type_BGRA == v->FourCC) { |
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st->codecpar->format = AV_PIX_FMT_BGRA; |
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st->codecpar->codec_tag = MKTAG('B', 'G', 'R', 'A'); |
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} else if (NDIlib_FourCC_type_BGRX == v->FourCC) { |
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st->codecpar->format = AV_PIX_FMT_BGR0; |
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st->codecpar->codec_tag = MKTAG('B', 'G', 'R', '0'); |
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} else if (NDIlib_FourCC_type_RGBA == v->FourCC) { |
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st->codecpar->format = AV_PIX_FMT_RGBA; |
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st->codecpar->codec_tag = MKTAG('R', 'G', 'B', 'A'); |
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} else if (NDIlib_FourCC_type_RGBX == v->FourCC) { |
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st->codecpar->format = AV_PIX_FMT_RGB0; |
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st->codecpar->codec_tag = MKTAG('R', 'G', 'B', '0'); |
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} else { |
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av_log(avctx, AV_LOG_ERROR, "Unsupported video stream format, v->FourCC=%d\n", v->FourCC); |
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return AVERROR(EINVAL); |
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} |
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avpriv_set_pts_info(st, 64, 1, NDI_TIME_BASE); |
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ctx->video_st = st; |
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return 0; |
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} |
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static int ndi_create_audio_stream(AVFormatContext *avctx, NDIlib_audio_frame_t *a) |
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{ |
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AVStream *st; |
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struct NDIContext *ctx = avctx->priv_data; |
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st = avformat_new_stream(avctx, NULL); |
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if (!st) { |
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av_log(avctx, AV_LOG_ERROR, "Cannot add audio stream\n"); |
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return AVERROR(ENOMEM); |
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} |
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st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO; |
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st->codecpar->codec_id = AV_CODEC_ID_PCM_S16LE; |
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st->codecpar->sample_rate = a->sample_rate; |
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st->codecpar->channels = a->no_channels; |
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avpriv_set_pts_info(st, 64, 1, NDI_TIME_BASE); |
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ctx->audio_st = st; |
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return 0; |
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} |
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static int ndi_read_packet(AVFormatContext *avctx, AVPacket *pkt) |
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{ |
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int ret = 0; |
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struct NDIContext *ctx = avctx->priv_data; |
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while (!ret) { |
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NDIlib_video_frame_t v; |
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NDIlib_audio_frame_t a; |
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NDIlib_metadata_frame_t m; |
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NDIlib_frame_type_e t; |
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av_log(avctx, AV_LOG_DEBUG, "NDIlib_recv_capture...\n"); |
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t = NDIlib_recv_capture(ctx->recv, &v, &a, &m, 40); |
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av_log(avctx, AV_LOG_DEBUG, "NDIlib_recv_capture=%d\n", t); |
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if (t == NDIlib_frame_type_video) { |
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if (!ctx->video_st) |
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ret = ndi_create_video_stream(avctx, &v); |
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if (!ret) |
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ret = ndi_set_video_packet(avctx, &v, pkt); |
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NDIlib_recv_free_video(ctx->recv, &v); |
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break; |
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} |
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else if (t == NDIlib_frame_type_audio) { |
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if (!ctx->audio_st) |
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ret = ndi_create_audio_stream(avctx, &a); |
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if (!ret) |
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ret = ndi_set_audio_packet(avctx, &a, pkt); |
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NDIlib_recv_free_audio(ctx->recv, &a); |
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break; |
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} |
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else if (t == NDIlib_frame_type_metadata) |
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NDIlib_recv_free_metadata(ctx->recv, &m); |
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else if (t == NDIlib_frame_type_error){ |
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av_log(avctx, AV_LOG_ERROR, "NDIlib_recv_capture failed with error\n"); |
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ret = AVERROR(EIO); |
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} |
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}; |
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return ret; |
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} |
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static int ndi_read_close(AVFormatContext *avctx) |
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{ |
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struct NDIContext *ctx = (struct NDIContext *)avctx->priv_data; |
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if (ctx->recv) |
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NDIlib_recv_destroy(ctx->recv); |
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if (ctx->ndi_find) |
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NDIlib_find_destroy(ctx->ndi_find); |
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return 0; |
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} |
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#define OFFSET(x) offsetof(struct NDIContext, x) |
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#define DEC AV_OPT_FLAG_DECODING_PARAM |
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static const AVOption options[] = { |
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{ "find_sources", "Find available sources" , OFFSET(find_sources), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, DEC }, |
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{ "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 }, |
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{ "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 }, |
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{ "extra_ips", "List of comma separated ip addresses to scan for remote sources", OFFSET(extra_ips), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC }, |
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{ NULL }, |
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}; |
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static const AVClass libndi_newtek_demuxer_class = { |
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.class_name = "NDI demuxer", |
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.item_name = av_default_item_name, |
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.option = options, |
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.version = LIBAVUTIL_VERSION_INT, |
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.category = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT, |
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}; |
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AVInputFormat ff_libndi_newtek_demuxer = { |
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.name = "libndi_newtek", |
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.long_name = NULL_IF_CONFIG_SMALL("Network Device Interface (NDI) input using NewTek library"), |
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.flags = AVFMT_NOFILE, |
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.priv_class = &libndi_newtek_demuxer_class, |
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.priv_data_size = sizeof(struct NDIContext), |
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.read_header = ndi_read_header, |
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.read_packet = ndi_read_packet, |
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.read_close = ndi_read_close, |
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}; |
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@ -1,299 +0,0 @@ |
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/*
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* NewTek NDI output |
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* Copyright (c) 2017 Maksym Veremeyenko |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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|
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#include "libavformat/avformat.h" |
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#include "libavformat/internal.h" |
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#include "libavutil/opt.h" |
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#include "libavutil/imgutils.h" |
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#include "libndi_newtek_common.h" |
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struct NDIContext { |
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const AVClass *cclass; |
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/* Options */ |
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int reference_level; |
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int clock_video, clock_audio; |
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NDIlib_video_frame_t *video; |
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NDIlib_audio_frame_interleaved_16s_t *audio; |
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NDIlib_send_instance_t ndi_send; |
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AVFrame *last_avframe; |
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}; |
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static int ndi_write_trailer(AVFormatContext *avctx) |
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{ |
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struct NDIContext *ctx = avctx->priv_data; |
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if (ctx->ndi_send) { |
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NDIlib_send_destroy(ctx->ndi_send); |
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av_frame_free(&ctx->last_avframe); |
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} |
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av_freep(&ctx->video); |
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av_freep(&ctx->audio); |
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return 0; |
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} |
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static int ndi_write_video_packet(AVFormatContext *avctx, AVStream *st, AVPacket *pkt) |
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{ |
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struct NDIContext *ctx = avctx->priv_data; |
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AVFrame *avframe, *tmp = (AVFrame *)pkt->data; |
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if (tmp->format != AV_PIX_FMT_UYVY422 && tmp->format != AV_PIX_FMT_BGRA && |
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tmp->format != AV_PIX_FMT_BGR0 && tmp->format != AV_PIX_FMT_RGBA && |
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tmp->format != AV_PIX_FMT_RGB0) { |
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av_log(avctx, AV_LOG_ERROR, "Got a frame with invalid pixel format.\n"); |
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return AVERROR(EINVAL); |
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} |
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|
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if (tmp->linesize[0] < 0) { |
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av_log(avctx, AV_LOG_ERROR, "Got a frame with negative linesize.\n"); |
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return AVERROR(EINVAL); |
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} |
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|
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if (tmp->width != ctx->video->xres || |
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tmp->height != ctx->video->yres) { |
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av_log(avctx, AV_LOG_ERROR, "Got a frame with invalid dimension.\n"); |
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av_log(avctx, AV_LOG_ERROR, "tmp->width=%d, tmp->height=%d, ctx->video->xres=%d, ctx->video->yres=%d\n", |
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tmp->width, tmp->height, ctx->video->xres, ctx->video->yres); |
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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->url, |
||||
.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->url); |
||||
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, |
||||
}; |
||||
Loading…
Reference in new issue