mirror of
https://git.ffmpeg.org/ffmpeg.git
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644 lines
22 KiB
C++
644 lines
22 KiB
C++
/*
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* Blackmagic DeckLink output
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* Copyright (c) 2013-2014 Ramiro Polla
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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 <atomic>
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using std::atomic;
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/* Include internal.h first to avoid conflict between winsock.h (used by
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* DeckLink headers) and winsock2.h (used by libavformat) in MSVC++ builds */
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extern "C" {
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#include "libavformat/internal.h"
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}
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#include <DeckLinkAPI.h>
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extern "C" {
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#include "libavformat/avformat.h"
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#include "libavutil/internal.h"
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#include "libavutil/imgutils.h"
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#include "avdevice.h"
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}
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#include "decklink_common.h"
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#include "decklink_enc.h"
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#if CONFIG_LIBKLVANC
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#include "libklvanc/vanc.h"
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#include "libklvanc/vanc-lines.h"
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#include "libklvanc/pixels.h"
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#endif
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/* DeckLink callback class declaration */
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class decklink_frame : public IDeckLinkVideoFrame
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{
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public:
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decklink_frame(struct decklink_ctx *ctx, AVFrame *avframe, AVCodecID codec_id, int height, int width) :
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_ctx(ctx), _avframe(avframe), _avpacket(NULL), _codec_id(codec_id), _ancillary(NULL), _height(height), _width(width), _refs(1) { }
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decklink_frame(struct decklink_ctx *ctx, AVPacket *avpacket, AVCodecID codec_id, int height, int width) :
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_ctx(ctx), _avframe(NULL), _avpacket(avpacket), _codec_id(codec_id), _ancillary(NULL), _height(height), _width(width), _refs(1) { }
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virtual long STDMETHODCALLTYPE GetWidth (void) { return _width; }
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virtual long STDMETHODCALLTYPE GetHeight (void) { return _height; }
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virtual long STDMETHODCALLTYPE GetRowBytes (void)
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{
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if (_codec_id == AV_CODEC_ID_WRAPPED_AVFRAME)
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return _avframe->linesize[0] < 0 ? -_avframe->linesize[0] : _avframe->linesize[0];
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else
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return ((GetWidth() + 47) / 48) * 128;
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}
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virtual BMDPixelFormat STDMETHODCALLTYPE GetPixelFormat(void)
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{
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if (_codec_id == AV_CODEC_ID_WRAPPED_AVFRAME)
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return bmdFormat8BitYUV;
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else
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return bmdFormat10BitYUV;
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}
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virtual BMDFrameFlags STDMETHODCALLTYPE GetFlags (void)
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{
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if (_codec_id == AV_CODEC_ID_WRAPPED_AVFRAME)
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return _avframe->linesize[0] < 0 ? bmdFrameFlagFlipVertical : bmdFrameFlagDefault;
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else
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return bmdFrameFlagDefault;
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}
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virtual HRESULT STDMETHODCALLTYPE GetBytes (void **buffer)
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{
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if (_codec_id == AV_CODEC_ID_WRAPPED_AVFRAME) {
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if (_avframe->linesize[0] < 0)
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*buffer = (void *)(_avframe->data[0] + _avframe->linesize[0] * (_avframe->height - 1));
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else
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*buffer = (void *)(_avframe->data[0]);
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} else {
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*buffer = (void *)(_avpacket->data);
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}
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return S_OK;
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}
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virtual HRESULT STDMETHODCALLTYPE GetTimecode (BMDTimecodeFormat format, IDeckLinkTimecode **timecode) { return S_FALSE; }
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virtual HRESULT STDMETHODCALLTYPE GetAncillaryData(IDeckLinkVideoFrameAncillary **ancillary)
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{
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*ancillary = _ancillary;
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if (_ancillary) {
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_ancillary->AddRef();
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return S_OK;
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} else {
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return S_FALSE;
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}
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}
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virtual HRESULT STDMETHODCALLTYPE SetAncillaryData(IDeckLinkVideoFrameAncillary *ancillary)
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{
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if (_ancillary)
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_ancillary->Release();
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_ancillary = ancillary;
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_ancillary->AddRef();
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return S_OK;
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}
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virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, LPVOID *ppv) { return E_NOINTERFACE; }
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virtual ULONG STDMETHODCALLTYPE AddRef(void) { return ++_refs; }
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virtual ULONG STDMETHODCALLTYPE Release(void)
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{
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int ret = --_refs;
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if (!ret) {
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av_frame_free(&_avframe);
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av_packet_free(&_avpacket);
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if (_ancillary)
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_ancillary->Release();
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delete this;
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}
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return ret;
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}
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struct decklink_ctx *_ctx;
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AVFrame *_avframe;
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AVPacket *_avpacket;
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AVCodecID _codec_id;
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IDeckLinkVideoFrameAncillary *_ancillary;
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int _height;
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int _width;
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private:
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std::atomic<int> _refs;
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};
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class decklink_output_callback : public IDeckLinkVideoOutputCallback
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{
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public:
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virtual HRESULT STDMETHODCALLTYPE ScheduledFrameCompleted(IDeckLinkVideoFrame *_frame, BMDOutputFrameCompletionResult result)
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{
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decklink_frame *frame = static_cast<decklink_frame *>(_frame);
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struct decklink_ctx *ctx = frame->_ctx;
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if (frame->_avframe)
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av_frame_unref(frame->_avframe);
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if (frame->_avpacket)
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av_packet_unref(frame->_avpacket);
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pthread_mutex_lock(&ctx->mutex);
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ctx->frames_buffer_available_spots++;
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pthread_cond_broadcast(&ctx->cond);
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pthread_mutex_unlock(&ctx->mutex);
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return S_OK;
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}
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virtual HRESULT STDMETHODCALLTYPE ScheduledPlaybackHasStopped(void) { return S_OK; }
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virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, LPVOID *ppv) { return E_NOINTERFACE; }
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virtual ULONG STDMETHODCALLTYPE AddRef(void) { return 1; }
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virtual ULONG STDMETHODCALLTYPE Release(void) { return 1; }
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};
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static int decklink_setup_video(AVFormatContext *avctx, AVStream *st)
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{
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struct decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data;
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struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;
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AVCodecParameters *c = st->codecpar;
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if (ctx->video) {
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av_log(avctx, AV_LOG_ERROR, "Only one video stream is supported!\n");
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return -1;
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}
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if (c->codec_id == AV_CODEC_ID_WRAPPED_AVFRAME) {
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if (c->format != AV_PIX_FMT_UYVY422) {
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av_log(avctx, AV_LOG_ERROR, "Unsupported pixel format!"
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" Only AV_PIX_FMT_UYVY422 is supported.\n");
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return -1;
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}
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ctx->raw_format = bmdFormat8BitYUV;
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} else if (c->codec_id != AV_CODEC_ID_V210) {
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av_log(avctx, AV_LOG_ERROR, "Unsupported codec type!"
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" Only V210 and wrapped frame with AV_PIX_FMT_UYVY422 are supported.\n");
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return -1;
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} else {
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ctx->raw_format = bmdFormat10BitYUV;
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}
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if (ff_decklink_set_configs(avctx, DIRECTION_OUT) < 0) {
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av_log(avctx, AV_LOG_ERROR, "Could not set output configuration\n");
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return -1;
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}
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if (ff_decklink_set_format(avctx, c->width, c->height,
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st->time_base.num, st->time_base.den, c->field_order)) {
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av_log(avctx, AV_LOG_ERROR, "Unsupported video size, framerate or field order!"
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" Check available formats with -list_formats 1.\n");
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return -1;
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}
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if (ctx->supports_vanc && ctx->dlo->EnableVideoOutput(ctx->bmd_mode, bmdVideoOutputVANC) != S_OK) {
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av_log(avctx, AV_LOG_WARNING, "Could not enable video output with VANC! Trying without...\n");
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ctx->supports_vanc = 0;
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}
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if (!ctx->supports_vanc && ctx->dlo->EnableVideoOutput(ctx->bmd_mode, bmdVideoOutputFlagDefault) != S_OK) {
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av_log(avctx, AV_LOG_ERROR, "Could not enable video output!\n");
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return -1;
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}
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/* Set callback. */
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ctx->output_callback = new decklink_output_callback();
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ctx->dlo->SetScheduledFrameCompletionCallback(ctx->output_callback);
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ctx->frames_preroll = st->time_base.den * ctx->preroll;
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if (st->time_base.den > 1000)
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ctx->frames_preroll /= 1000;
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/* Buffer twice as many frames as the preroll. */
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ctx->frames_buffer = ctx->frames_preroll * 2;
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ctx->frames_buffer = FFMIN(ctx->frames_buffer, 60);
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pthread_mutex_init(&ctx->mutex, NULL);
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pthread_cond_init(&ctx->cond, NULL);
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ctx->frames_buffer_available_spots = ctx->frames_buffer;
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av_log(avctx, AV_LOG_DEBUG, "output: %s, preroll: %d, frames buffer size: %d\n",
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avctx->url, ctx->frames_preroll, ctx->frames_buffer);
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/* The device expects the framerate to be fixed. */
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avpriv_set_pts_info(st, 64, st->time_base.num, st->time_base.den);
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ctx->video = 1;
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return 0;
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}
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static int decklink_setup_audio(AVFormatContext *avctx, AVStream *st)
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{
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struct decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data;
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struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;
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AVCodecParameters *c = st->codecpar;
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if (ctx->audio) {
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av_log(avctx, AV_LOG_ERROR, "Only one audio stream is supported!\n");
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return -1;
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}
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if (c->sample_rate != 48000) {
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av_log(avctx, AV_LOG_ERROR, "Unsupported sample rate!"
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" Only 48kHz is supported.\n");
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return -1;
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}
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if (c->ch_layout.nb_channels != 2 && c->ch_layout.nb_channels != 8 && c->ch_layout.nb_channels != 16) {
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av_log(avctx, AV_LOG_ERROR, "Unsupported number of channels!"
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" Only 2, 8 or 16 channels are supported.\n");
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return -1;
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}
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if (ctx->dlo->EnableAudioOutput(bmdAudioSampleRate48kHz,
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bmdAudioSampleType16bitInteger,
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c->ch_layout.nb_channels,
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bmdAudioOutputStreamTimestamped) != S_OK) {
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av_log(avctx, AV_LOG_ERROR, "Could not enable audio output!\n");
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return -1;
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}
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if (ctx->dlo->BeginAudioPreroll() != S_OK) {
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av_log(avctx, AV_LOG_ERROR, "Could not begin audio preroll!\n");
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return -1;
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}
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/* The device expects the sample rate to be fixed. */
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avpriv_set_pts_info(st, 64, 1, c->sample_rate);
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ctx->channels = c->ch_layout.nb_channels;
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ctx->audio = 1;
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return 0;
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}
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av_cold int ff_decklink_write_trailer(AVFormatContext *avctx)
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{
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struct decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data;
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struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;
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if (ctx->playback_started) {
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BMDTimeValue actual;
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ctx->dlo->StopScheduledPlayback(ctx->last_pts * ctx->bmd_tb_num,
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&actual, ctx->bmd_tb_den);
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ctx->dlo->DisableVideoOutput();
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if (ctx->audio)
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ctx->dlo->DisableAudioOutput();
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}
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ff_decklink_cleanup(avctx);
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if (ctx->output_callback)
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delete ctx->output_callback;
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pthread_mutex_destroy(&ctx->mutex);
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pthread_cond_destroy(&ctx->cond);
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#if CONFIG_LIBKLVANC
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klvanc_context_destroy(ctx->vanc_ctx);
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#endif
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av_freep(&cctx->ctx);
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return 0;
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}
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#if CONFIG_LIBKLVANC
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static void construct_cc(AVFormatContext *avctx, struct decklink_ctx *ctx,
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AVPacket *pkt, struct klvanc_line_set_s *vanc_lines)
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{
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struct klvanc_packet_eia_708b_s *cdp;
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uint16_t *cdp_words;
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uint16_t len;
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uint8_t cc_count;
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size_t size;
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int ret, i;
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const uint8_t *data = av_packet_get_side_data(pkt, AV_PKT_DATA_A53_CC, &size);
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if (!data)
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return;
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cc_count = size / 3;
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ret = klvanc_create_eia708_cdp(&cdp);
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if (ret)
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return;
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ret = klvanc_set_framerate_EIA_708B(cdp, ctx->bmd_tb_num, ctx->bmd_tb_den);
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if (ret) {
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av_log(avctx, AV_LOG_ERROR, "Invalid framerate specified: %lld/%lld\n",
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ctx->bmd_tb_num, ctx->bmd_tb_den);
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klvanc_destroy_eia708_cdp(cdp);
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return;
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}
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if (cc_count > KLVANC_MAX_CC_COUNT) {
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av_log(avctx, AV_LOG_ERROR, "Illegal cc_count received: %d\n", cc_count);
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cc_count = KLVANC_MAX_CC_COUNT;
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}
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/* CC data */
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cdp->header.ccdata_present = 1;
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cdp->header.caption_service_active = 1;
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cdp->ccdata.cc_count = cc_count;
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for (i = 0; i < cc_count; i++) {
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if (data [3*i] & 0x04)
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cdp->ccdata.cc[i].cc_valid = 1;
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cdp->ccdata.cc[i].cc_type = data[3*i] & 0x03;
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cdp->ccdata.cc[i].cc_data[0] = data[3*i+1];
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cdp->ccdata.cc[i].cc_data[1] = data[3*i+2];
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}
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klvanc_finalize_EIA_708B(cdp, ctx->cdp_sequence_num++);
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ret = klvanc_convert_EIA_708B_to_words(cdp, &cdp_words, &len);
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klvanc_destroy_eia708_cdp(cdp);
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if (ret != 0) {
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av_log(avctx, AV_LOG_ERROR, "Failed converting 708 packet to words\n");
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return;
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}
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ret = klvanc_line_insert(ctx->vanc_ctx, vanc_lines, cdp_words, len, 11, 0);
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free(cdp_words);
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if (ret != 0) {
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av_log(avctx, AV_LOG_ERROR, "VANC line insertion failed\n");
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return;
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}
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}
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static int decklink_construct_vanc(AVFormatContext *avctx, struct decklink_ctx *ctx,
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AVPacket *pkt, decklink_frame *frame)
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{
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struct klvanc_line_set_s vanc_lines = { 0 };
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int ret = 0, i;
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if (!ctx->supports_vanc)
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return 0;
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construct_cc(avctx, ctx, pkt, &vanc_lines);
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IDeckLinkVideoFrameAncillary *vanc;
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int result = ctx->dlo->CreateAncillaryData(bmdFormat10BitYUV, &vanc);
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if (result != S_OK) {
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av_log(avctx, AV_LOG_ERROR, "Failed to create vanc\n");
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ret = AVERROR(EIO);
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goto done;
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}
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/* Now that we've got all the VANC lines in a nice orderly manner, generate the
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final VANC sections for the Decklink output */
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for (i = 0; i < vanc_lines.num_lines; i++) {
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struct klvanc_line_s *line = vanc_lines.lines[i];
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int real_line;
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void *buf;
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if (!line)
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break;
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/* FIXME: include hack for certain Decklink cards which mis-represent
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line numbers for pSF frames */
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real_line = line->line_number;
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result = vanc->GetBufferForVerticalBlankingLine(real_line, &buf);
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if (result != S_OK) {
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av_log(avctx, AV_LOG_ERROR, "Failed to get VANC line %d: %d", real_line, result);
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continue;
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}
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/* Generate the full line taking into account all VANC packets on that line */
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result = klvanc_generate_vanc_line_v210(ctx->vanc_ctx, line, (uint8_t *) buf,
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ctx->bmd_width);
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if (result) {
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av_log(avctx, AV_LOG_ERROR, "Failed to generate VANC line\n");
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continue;
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}
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}
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result = frame->SetAncillaryData(vanc);
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vanc->Release();
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if (result != S_OK) {
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av_log(avctx, AV_LOG_ERROR, "Failed to set vanc: %d", result);
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ret = AVERROR(EIO);
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}
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done:
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for (i = 0; i < vanc_lines.num_lines; i++)
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klvanc_line_free(vanc_lines.lines[i]);
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return ret;
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}
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#endif
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static int decklink_write_video_packet(AVFormatContext *avctx, AVPacket *pkt)
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{
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struct decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data;
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struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;
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AVStream *st = avctx->streams[pkt->stream_index];
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AVFrame *avframe = NULL, *tmp = (AVFrame *)pkt->data;
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AVPacket *avpacket = NULL;
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decklink_frame *frame;
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uint32_t buffered;
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HRESULT hr;
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if (st->codecpar->codec_id == AV_CODEC_ID_WRAPPED_AVFRAME) {
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if (tmp->format != AV_PIX_FMT_UYVY422 ||
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tmp->width != ctx->bmd_width ||
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tmp->height != ctx->bmd_height) {
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av_log(avctx, AV_LOG_ERROR, "Got a frame with invalid pixel format or dimension.\n");
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return AVERROR(EINVAL);
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}
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avframe = av_frame_clone(tmp);
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if (!avframe) {
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av_log(avctx, AV_LOG_ERROR, "Could not clone video frame.\n");
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return AVERROR(EIO);
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}
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frame = new decklink_frame(ctx, avframe, st->codecpar->codec_id, avframe->height, avframe->width);
|
|
} else {
|
|
avpacket = av_packet_clone(pkt);
|
|
if (!avpacket) {
|
|
av_log(avctx, AV_LOG_ERROR, "Could not clone video frame.\n");
|
|
return AVERROR(EIO);
|
|
}
|
|
|
|
frame = new decklink_frame(ctx, avpacket, st->codecpar->codec_id, ctx->bmd_height, ctx->bmd_width);
|
|
|
|
#if CONFIG_LIBKLVANC
|
|
if (decklink_construct_vanc(avctx, ctx, pkt, frame))
|
|
av_log(avctx, AV_LOG_ERROR, "Failed to construct VANC\n");
|
|
#endif
|
|
}
|
|
|
|
if (!frame) {
|
|
av_log(avctx, AV_LOG_ERROR, "Could not create new frame.\n");
|
|
av_frame_free(&avframe);
|
|
av_packet_free(&avpacket);
|
|
return AVERROR(EIO);
|
|
}
|
|
|
|
/* Always keep at most one second of frames buffered. */
|
|
pthread_mutex_lock(&ctx->mutex);
|
|
while (ctx->frames_buffer_available_spots == 0) {
|
|
pthread_cond_wait(&ctx->cond, &ctx->mutex);
|
|
}
|
|
ctx->frames_buffer_available_spots--;
|
|
pthread_mutex_unlock(&ctx->mutex);
|
|
|
|
/* Schedule frame for playback. */
|
|
hr = ctx->dlo->ScheduleVideoFrame((class IDeckLinkVideoFrame *) frame,
|
|
pkt->pts * ctx->bmd_tb_num,
|
|
ctx->bmd_tb_num, ctx->bmd_tb_den);
|
|
/* Pass ownership to DeckLink, or release on failure */
|
|
frame->Release();
|
|
if (hr != S_OK) {
|
|
av_log(avctx, AV_LOG_ERROR, "Could not schedule video frame."
|
|
" error %08x.\n", (uint32_t) hr);
|
|
return AVERROR(EIO);
|
|
}
|
|
|
|
ctx->dlo->GetBufferedVideoFrameCount(&buffered);
|
|
av_log(avctx, AV_LOG_DEBUG, "Buffered video frames: %d.\n", (int) buffered);
|
|
if (pkt->pts > 2 && buffered <= 2)
|
|
av_log(avctx, AV_LOG_WARNING, "There are not enough buffered video frames."
|
|
" Video may misbehave!\n");
|
|
|
|
/* Preroll video frames. */
|
|
if (!ctx->playback_started && pkt->pts > ctx->frames_preroll) {
|
|
av_log(avctx, AV_LOG_DEBUG, "Ending audio preroll.\n");
|
|
if (ctx->audio && ctx->dlo->EndAudioPreroll() != S_OK) {
|
|
av_log(avctx, AV_LOG_ERROR, "Could not end audio preroll!\n");
|
|
return AVERROR(EIO);
|
|
}
|
|
av_log(avctx, AV_LOG_DEBUG, "Starting scheduled playback.\n");
|
|
if (ctx->dlo->StartScheduledPlayback(0, ctx->bmd_tb_den, 1.0) != S_OK) {
|
|
av_log(avctx, AV_LOG_ERROR, "Could not start scheduled playback!\n");
|
|
return AVERROR(EIO);
|
|
}
|
|
ctx->playback_started = 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int decklink_write_audio_packet(AVFormatContext *avctx, AVPacket *pkt)
|
|
{
|
|
struct decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data;
|
|
struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;
|
|
int sample_count = pkt->size / (ctx->channels << 1);
|
|
uint32_t buffered;
|
|
|
|
ctx->dlo->GetBufferedAudioSampleFrameCount(&buffered);
|
|
if (pkt->pts > 1 && !buffered)
|
|
av_log(avctx, AV_LOG_WARNING, "There's no buffered audio."
|
|
" Audio will misbehave!\n");
|
|
|
|
if (ctx->dlo->ScheduleAudioSamples(pkt->data, sample_count, pkt->pts,
|
|
bmdAudioSampleRate48kHz, NULL) != S_OK) {
|
|
av_log(avctx, AV_LOG_ERROR, "Could not schedule audio samples.\n");
|
|
return AVERROR(EIO);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
extern "C" {
|
|
|
|
av_cold int ff_decklink_write_header(AVFormatContext *avctx)
|
|
{
|
|
struct decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data;
|
|
struct decklink_ctx *ctx;
|
|
unsigned int n;
|
|
int ret;
|
|
|
|
ctx = (struct decklink_ctx *) av_mallocz(sizeof(struct decklink_ctx));
|
|
if (!ctx)
|
|
return AVERROR(ENOMEM);
|
|
ctx->list_devices = cctx->list_devices;
|
|
ctx->list_formats = cctx->list_formats;
|
|
ctx->preroll = cctx->preroll;
|
|
ctx->duplex_mode = cctx->duplex_mode;
|
|
if (cctx->link > 0 && (unsigned int)cctx->link < FF_ARRAY_ELEMS(decklink_link_conf_map))
|
|
ctx->link = decklink_link_conf_map[cctx->link];
|
|
cctx->ctx = ctx;
|
|
#if CONFIG_LIBKLVANC
|
|
if (klvanc_context_create(&ctx->vanc_ctx) < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "Cannot create VANC library context\n");
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
ctx->supports_vanc = 1;
|
|
#endif
|
|
|
|
/* List available devices and exit. */
|
|
if (ctx->list_devices) {
|
|
ff_decklink_list_devices_legacy(avctx, 0, 1);
|
|
return AVERROR_EXIT;
|
|
}
|
|
|
|
ret = ff_decklink_init_device(avctx, avctx->url);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* Get output device. */
|
|
if (ctx->dl->QueryInterface(IID_IDeckLinkOutput, (void **) &ctx->dlo) != S_OK) {
|
|
av_log(avctx, AV_LOG_ERROR, "Could not open output device from '%s'\n",
|
|
avctx->url);
|
|
ret = AVERROR(EIO);
|
|
goto error;
|
|
}
|
|
|
|
/* List supported formats. */
|
|
if (ctx->list_formats) {
|
|
ff_decklink_list_formats(avctx);
|
|
ret = AVERROR_EXIT;
|
|
goto error;
|
|
}
|
|
|
|
/* Setup streams. */
|
|
ret = AVERROR(EIO);
|
|
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 (decklink_setup_audio(avctx, st))
|
|
goto error;
|
|
} else if (c->codec_type == AVMEDIA_TYPE_VIDEO) {
|
|
if (decklink_setup_video(avctx, st))
|
|
goto error;
|
|
} else {
|
|
av_log(avctx, AV_LOG_ERROR, "Unsupported stream type.\n");
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
error:
|
|
ff_decklink_cleanup(avctx);
|
|
return ret;
|
|
}
|
|
|
|
int ff_decklink_write_packet(AVFormatContext *avctx, AVPacket *pkt)
|
|
{
|
|
struct decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data;
|
|
struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;
|
|
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 decklink_write_video_packet(avctx, pkt);
|
|
else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
|
|
return decklink_write_audio_packet(avctx, pkt);
|
|
|
|
return AVERROR(EIO);
|
|
}
|
|
|
|
int ff_decklink_list_output_devices(AVFormatContext *avctx, struct AVDeviceInfoList *device_list)
|
|
{
|
|
return ff_decklink_list_devices(avctx, device_list, 0, 1);
|
|
}
|
|
|
|
} /* extern "C" */
|