From patchwork Fri Dec 29 18:12:25 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Devin Heitmueller X-Patchwork-Id: 7018 Delivered-To: ffmpegpatchwork@gmail.com Received: by 10.2.79.195 with SMTP id r64csp10785725jad; Fri, 29 Dec 2017 10:13:22 -0800 (PST) X-Google-Smtp-Source: ACJfBouNVFuKb10E5v+X7Yv9P/C+TKiWmnTWn0CV73AuFUld+D04NQok89eSOIfRYMxfXwE1q2tK X-Received: by 10.223.193.76 with SMTP id w12mr5741525wre.122.1514571202298; Fri, 29 Dec 2017 10:13:22 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1514571202; cv=none; d=google.com; s=arc-20160816; b=eZsjoL4gBlgorkwmkDYwbFy0OVFsVrDCcv+K47kAAJH+o3KXnPr5MG7nv0wGE3JAwa S/FQE9W2wftZyMcQuJU0J6w+k0eDOivilWA6k0r+HJW+4bGZ6u2uFowuqIcuz7Y/nsO/ QHAqgZvGKKJ6Omlgvk7Ha6CCmIC7OjOaQ8mE/7aWsB7eFt9Gwc/guSp/RrvYRen7ybA4 V9Z3Nq9C0AkgRInUZh5NcUnM8tc5herYD90ArwzZSQi3+pC1nJyHyMJ9Ac4X6iWYOIGP TFlt6iwOHidZQ5WKyO4SrnG4aGQfSDoYD8fyYxuz4iXGQR18W7pC9/Z9Kgf0s1vCJcRz UlUA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:mime-version:cc:reply-to :list-subscribe:list-help:list-post:list-archive:list-unsubscribe :list-id:precedence:subject:references:in-reply-to:message-id:date :to:from:delivered-to:arc-authentication-results; bh=bk55n5o+OrMCeQxJcL0JkmFn2ZN1JrQyOMOTJkM2GPU=; b=LyXOLBpF+LLbS8MwXT537NKELJPiuaGETfsKKfJfFyFz5xqLn5wAqgVUfcNbpw9SCu 7qG/2LIFd7r9eKA4n7FCVRqAp5panygYlkUaBEu2H4XdqWKVSt6GakZaV/ZVL6fIAWcw hfu/EBUlmI77NJeKuKtGY6828weQ5G9BtskldPwt9QTXfTu8j00XgDXIhT+xdroKrZ81 7W1y14InqirzvtU1qDXsTipEz/hu/TRfWaQPiWBXsipzKKh2oivsUa3dwkj1djR5NwD3 9/VYR8zlK7q7bdFWDNaa1a58H2qb+ZT6NSYNiFvqwwslZSUeQ5wj4OIM+8pphOFzhSJF uDhQ== ARC-Authentication-Results: i=1; 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 Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org. [79.124.17.100]) by mx.google.com with ESMTP id h71si16765940wmd.205.2017.12.29.10.13.21; Fri, 29 Dec 2017 10:13:22 -0800 (PST) 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 6BB92689BE5; Fri, 29 Dec 2017 20:12:42 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from was-smtp1.livetimenet.net (50-206-97-56-static.hfc.comcastbusiness.net [50.206.97.56]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 51804689B6A for ; Fri, 29 Dec 2017 20:12:36 +0200 (EET) Received: by was-smtp1.livetimenet.net with esmtpsa (TLSv1:AES128-SHA:128) (Exim 4.84_2) (envelope-from ) id 1eUz9E-0002Cw-MO; Fri, 29 Dec 2017 13:12:50 -0500 From: Devin Heitmueller To: ffmpeg-devel@ffmpeg.org Date: Fri, 29 Dec 2017 13:12:25 -0500 Message-Id: <20171229181230.99473-4-dheitmueller@ltnglobal.com> X-Mailer: git-send-email 2.13.2 In-Reply-To: <20171229181230.99473-1-dheitmueller@ltnglobal.com> References: <20171229181230.99473-1-dheitmueller@ltnglobal.com> X-Spam-Score: -1.9 (-) Subject: [FFmpeg-devel] [PATCH 3/8] decklink: Introduce support for capture of multiple audio streams 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 Cc: jgreen@ltnglobal.com, Devin Heitmueller MIME-Version: 1.0 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Add support for the ability to capture all audio pairs available to the capture hardware. Each pair is exposed as a different audio stream, which matches up with the most common use cases for the broadcast space (i.e. where there is one stereo pair per audio language). To support the existing use case where multi-channel audio can be captured (i.e. 7.1), we introduced a new configuration option, which defaults to the existing behavior. --- libavdevice/decklink_common.cpp | 9 +++ libavdevice/decklink_common.h | 8 ++- libavdevice/decklink_common_c.h | 6 ++ libavdevice/decklink_dec.cpp | 134 +++++++++++++++++++++++++++++++--------- libavdevice/decklink_dec_c.c | 3 + 5 files changed, 130 insertions(+), 30 deletions(-) diff --git a/libavdevice/decklink_common.cpp b/libavdevice/decklink_common.cpp index ba091dadea..91a626221d 100644 --- a/libavdevice/decklink_common.cpp +++ b/libavdevice/decklink_common.cpp @@ -480,5 +480,14 @@ int ff_decklink_init_device(AVFormatContext *avctx, const char* name) return AVERROR_EXTERNAL; } + if (ctx->attr->GetInt(BMDDeckLinkMaximumAudioChannels, &ctx->max_audio_channels) != S_OK) { + av_log(avctx, AV_LOG_WARNING, "Could not determine number of audio channels\n"); + ctx->max_audio_channels = 0; + } + if (ctx->max_audio_channels > DECKLINK_MAX_AUDIO_CHANNELS) { + av_log(avctx, AV_LOG_WARNING, "Decklink card reported support for more channels than ffmpeg supports\n"); + ctx->max_audio_channels = DECKLINK_MAX_AUDIO_CHANNELS; + } + return 0; } diff --git a/libavdevice/decklink_common.h b/libavdevice/decklink_common.h index 143bbb951a..06b241029e 100644 --- a/libavdevice/decklink_common.h +++ b/libavdevice/decklink_common.h @@ -37,6 +37,10 @@ #define DECKLINK_BOOL bool #endif +/* Maximum number of channels possible across variants of Blackmagic cards. + Actual number for any particular model of card may be lower */ +#define DECKLINK_MAX_AUDIO_CHANNELS 32 + class decklink_output_callback; class decklink_input_callback; @@ -71,6 +75,7 @@ struct decklink_ctx { int bmd_height; int bmd_field_dominance; int supports_vanc; + int64_t max_audio_channels; /* Capture buffer queue */ AVPacketQueue queue; @@ -85,7 +90,8 @@ struct decklink_ctx { int64_t last_pts; unsigned long frameCount; unsigned int dropped; - AVStream *audio_st; + AVStream *audio_st[DECKLINK_MAX_AUDIO_CHANNELS]; + int num_audio_streams; AVStream *video_st; AVStream *teletext_st; uint16_t cdp_sequence_num; diff --git a/libavdevice/decklink_common_c.h b/libavdevice/decklink_common_c.h index 368ac259e4..02011ed53b 100644 --- a/libavdevice/decklink_common_c.h +++ b/libavdevice/decklink_common_c.h @@ -30,6 +30,11 @@ typedef enum DecklinkPtsSource { PTS_SRC_WALLCLOCK = 4, } DecklinkPtsSource; +typedef enum DecklinkAudioMode { + AUDIO_MODE_DISCRETE = 0, + AUDIO_MODE_PAIRS = 1, +} DecklinkAudioMode; + struct decklink_cctx { const AVClass *cclass; @@ -42,6 +47,7 @@ struct decklink_cctx { double preroll; int v210; int audio_channels; + int audio_mode; int audio_depth; int duplex_mode; DecklinkPtsSource audio_pts_source; diff --git a/libavdevice/decklink_dec.cpp b/libavdevice/decklink_dec.cpp index 94dae26003..8d4070eecd 100644 --- a/libavdevice/decklink_dec.cpp +++ b/libavdevice/decklink_dec.cpp @@ -627,9 +627,54 @@ static int64_t get_pkt_pts(IDeckLinkVideoInputFrame *videoFrame, return pts; } +static int setup_audio(AVFormatContext *avctx) +{ + struct decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data; + struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx; + AVStream *st; + int ret = 0; + + if (cctx->audio_mode == AUDIO_MODE_DISCRETE) { + 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 = ctx->audio_depth == 32 ? AV_CODEC_ID_PCM_S32LE : AV_CODEC_ID_PCM_S16LE; + st->codecpar->sample_rate = bmdAudioSampleRate48kHz; + st->codecpar->channels = cctx->audio_channels; + avpriv_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */ + ctx->audio_st[0] = st; + ctx->num_audio_streams++; + } else { + for (int i = 0; i < ctx->max_audio_channels / 2; i++) { + st = avformat_new_stream(avctx, NULL); + if (!st) { + av_log(avctx, AV_LOG_ERROR, "Cannot add stream %d\n", i); + ret = AVERROR(ENOMEM); + goto error; + } + st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO; + st->codecpar->codec_id = ctx->audio_depth == 32 ? AV_CODEC_ID_PCM_S32LE : AV_CODEC_ID_PCM_S16LE; + st->codecpar->sample_rate = bmdAudioSampleRate48kHz; + st->codecpar->channels = 2; + avpriv_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */ + ctx->audio_st[i] = st; + ctx->num_audio_streams++; + } + cctx->audio_channels = ctx->max_audio_channels; + } + +error: + return ret; +} + HRESULT decklink_input_callback::VideoInputFrameArrived( IDeckLinkVideoInputFrame *videoFrame, IDeckLinkAudioInputPacket *audioFrame) { + decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data; void *frameBytes; void *audioFrameBytes; BMDTimeValue frameTime; @@ -777,24 +822,57 @@ HRESULT decklink_input_callback::VideoInputFrameArrived( // Handle Audio Frame if (audioFrame) { - AVPacket pkt; - BMDTimeValue audio_pts; - av_init_packet(&pkt); - - //hack among hacks - pkt.size = audioFrame->GetSampleFrameCount() * ctx->audio_st->codecpar->channels * (ctx->audio_depth / 8); audioFrame->GetBytes(&audioFrameBytes); - audioFrame->GetPacketTime(&audio_pts, ctx->audio_st->time_base.den); - pkt.pts = get_pkt_pts(videoFrame, audioFrame, wallclock, ctx->audio_pts_source, ctx->audio_st->time_base, &initial_audio_pts); - pkt.dts = pkt.pts; - //fprintf(stderr,"Audio Frame size %d ts %d\n", pkt.size, pkt.pts); - pkt.flags |= AV_PKT_FLAG_KEY; - pkt.stream_index = ctx->audio_st->index; - pkt.data = (uint8_t *)audioFrameBytes; + if (cctx->audio_mode == AUDIO_MODE_DISCRETE) { + AVPacket pkt; + BMDTimeValue audio_pts; + av_init_packet(&pkt); - if (avpacket_queue_put(&ctx->queue, &pkt) < 0) { - ++ctx->dropped; + //hack among hacks + pkt.size = audioFrame->GetSampleFrameCount() * ctx->audio_st[0]->codecpar->channels * (ctx->audio_depth / 8); + audioFrame->GetBytes(&audioFrameBytes); + audioFrame->GetPacketTime(&audio_pts, ctx->audio_st[0]->time_base.den); + pkt.pts = get_pkt_pts(videoFrame, audioFrame, wallclock, ctx->audio_pts_source, ctx->audio_st[0]->time_base, &initial_audio_pts); + pkt.dts = pkt.pts; + + pkt.flags |= AV_PKT_FLAG_KEY; + pkt.stream_index = ctx->audio_st[0]->index; + pkt.data = (uint8_t *)audioFrameBytes; + + if (avpacket_queue_put(&ctx->queue, &pkt) < 0) { + ++ctx->dropped; + } + } else { + /* Need to deinterleave audio */ + int audio_offset = 0; + int audio_stride = cctx->audio_channels * ctx->audio_depth / 8; + for (int i = 0; i < ctx->num_audio_streams; i++) { + int sample_size = ctx->audio_st[i]->codecpar->channels * + ctx->audio_st[i]->codecpar->bits_per_coded_sample / 8; + AVPacket pkt; + int ret = av_new_packet(&pkt, audioFrame->GetSampleFrameCount() * sample_size); + if (ret != 0) + continue; + + pkt.pts = get_pkt_pts(videoFrame, audioFrame, wallclock, ctx->audio_pts_source, + ctx->audio_st[i]->time_base, &initial_audio_pts); + pkt.dts = pkt.pts; + pkt.flags |= AV_PKT_FLAG_KEY; + pkt.stream_index = ctx->audio_st[i]->index; + + uint8_t *audio_in = ((uint8_t *) audioFrameBytes) + audio_offset; + for (int x = 0; x < pkt.size; x += sample_size) { + memcpy(&pkt.data[x], audio_in, sample_size); + audio_in += audio_stride; + } + + if (avpacket_queue_put(&ctx->queue, &pkt) < 0) + ++ctx->dropped; + + av_packet_unref(&pkt); + audio_offset += sample_size; + } } } @@ -999,18 +1077,7 @@ av_cold int ff_decklink_read_header(AVFormatContext *avctx) #endif /* Setup streams. */ - 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 = cctx->audio_depth == 32 ? AV_CODEC_ID_PCM_S32LE : AV_CODEC_ID_PCM_S16LE; - st->codecpar->sample_rate = bmdAudioSampleRate48kHz; - st->codecpar->channels = cctx->audio_channels; - avpriv_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */ - ctx->audio_st=st; + setup_audio(avctx); st = avformat_new_stream(avctx, NULL); if (!st) { @@ -1096,8 +1163,17 @@ av_cold int ff_decklink_read_header(AVFormatContext *avctx) ctx->teletext_st = st; } - av_log(avctx, AV_LOG_VERBOSE, "Using %d input audio channels\n", ctx->audio_st->codecpar->channels); - result = ctx->dli->EnableAudioInput(bmdAudioSampleRate48kHz, cctx->audio_depth == 32 ? bmdAudioSampleType32bitInteger : bmdAudioSampleType16bitInteger, ctx->audio_st->codecpar->channels); + if (cctx->audio_mode == AUDIO_MODE_DISCRETE) { + av_log(avctx, AV_LOG_VERBOSE, "Using %d input audio channels\n", ctx->audio_st[0]->codecpar->channels); + result = ctx->dli->EnableAudioInput(bmdAudioSampleRate48kHz, + ctx->audio_depth == 32 ? bmdAudioSampleType32bitInteger : bmdAudioSampleType16bitInteger, + ctx->audio_st[0]->codecpar->channels); + } else { + av_log(avctx, AV_LOG_VERBOSE, "Using %d input audio channels\n", (int)ctx->max_audio_channels); + result = ctx->dli->EnableAudioInput(bmdAudioSampleRate48kHz, + ctx->audio_depth == 32 ? bmdAudioSampleType32bitInteger : bmdAudioSampleType16bitInteger, + ctx->max_audio_channels); + } if (result != S_OK) { av_log(avctx, AV_LOG_ERROR, "Cannot enable audio input\n"); diff --git a/libavdevice/decklink_dec_c.c b/libavdevice/decklink_dec_c.c index 1c6d826945..d3d8c848cf 100644 --- a/libavdevice/decklink_dec_c.c +++ b/libavdevice/decklink_dec_c.c @@ -44,6 +44,9 @@ static const AVOption options[] = { { "standard", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0x7fff9fffeLL}, 0, 0, DEC, "teletext_lines"}, { "all", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0x7ffffffffLL}, 0, 0, DEC, "teletext_lines"}, { "channels", "number of audio channels", OFFSET(audio_channels), AV_OPT_TYPE_INT , { .i64 = 2 }, 2, 16, DEC }, + { "audio_mode", "audio mode", OFFSET(audio_mode), AV_OPT_TYPE_INT, { .i64 = AUDIO_MODE_DISCRETE}, 0, 1, DEC, "audio_mode"}, + { "discrete", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AUDIO_MODE_DISCRETE}, 0, 0, DEC, "audio_mode"}, + { "pairs", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AUDIO_MODE_PAIRS}, 0, 0, DEC, "audio_mode"}, { "duplex_mode", "duplex mode", OFFSET(duplex_mode), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 2, DEC, "duplex_mode"}, { "unset", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0}, 0, 0, DEC, "duplex_mode"}, { "half", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1}, 0, 0, DEC, "duplex_mode"},