547 lines
16 KiB
C++
547 lines
16 KiB
C++
//
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// ZoneMinder Ffmpeg Camera Class Implementation, $Date: 2009-01-16 12:18:50 +0000 (Fri, 16 Jan 2009) $, $Revision: 2713 $
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// Copyright (C) 2001-2008 Philip Coombes
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program 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
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; 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 "zm.h"
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#if HAVE_LIBAVFORMAT
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#include "zm_ffmpeg_camera.h"
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extern "C" {
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#include "libavutil/time.h"
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#if HAVE_AVUTIL_HWCONTEXT_H
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#include "libavutil/hwcontext.h"
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#include "libavutil/hwcontext_qsv.h"
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#endif
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}
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#ifndef AV_ERROR_MAX_STRING_SIZE
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#define AV_ERROR_MAX_STRING_SIZE 64
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#endif
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#ifdef SOLARIS
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#include <sys/errno.h> // for ESRCH
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#include <signal.h>
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#include <pthread.h>
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#endif
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#if HAVE_AVUTIL_HWCONTEXT_H
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static AVPixelFormat get_format(AVCodecContext *avctx, const enum AVPixelFormat *pix_fmts) {
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while (*pix_fmts != AV_PIX_FMT_NONE) {
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if (*pix_fmts == AV_PIX_FMT_QSV) {
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DecodeContext *decode = (DecodeContext *)avctx->opaque;
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AVHWFramesContext *frames_ctx;
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AVQSVFramesContext *frames_hwctx;
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int ret;
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/* create a pool of surfaces to be used by the decoder */
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avctx->hw_frames_ctx = av_hwframe_ctx_alloc(decode->hw_device_ref);
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if (!avctx->hw_frames_ctx)
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return AV_PIX_FMT_NONE;
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frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
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frames_hwctx = (AVQSVFramesContext*)frames_ctx->hwctx;
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frames_ctx->format = AV_PIX_FMT_QSV;
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frames_ctx->sw_format = avctx->sw_pix_fmt;
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frames_ctx->width = FFALIGN(avctx->coded_width, 32);
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frames_ctx->height = FFALIGN(avctx->coded_height, 32);
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frames_ctx->initial_pool_size = 32;
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frames_hwctx->frame_type = MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET;
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ret = av_hwframe_ctx_init(avctx->hw_frames_ctx);
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if (ret < 0)
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return AV_PIX_FMT_NONE;
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return AV_PIX_FMT_QSV;
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}
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pix_fmts++;
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}
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Error( "The QSV pixel format not offered in get_format()");
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return AV_PIX_FMT_NONE;
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}
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#endif
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FfmpegCamera::FfmpegCamera( int p_id, const std::string &p_path, const std::string &p_method, const std::string &p_options, int p_width, int p_height, int p_colours, int p_brightness, int p_contrast, int p_hue, int p_colour, bool p_capture, bool p_record_audio ) :
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Camera( p_id, FFMPEG_SRC, p_width, p_height, p_colours, ZM_SUBPIX_ORDER_DEFAULT_FOR_COLOUR(p_colours), p_brightness, p_contrast, p_hue, p_colour, p_capture, p_record_audio ),
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mPath( p_path ),
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mMethod( p_method ),
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mOptions( p_options )
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{
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if ( capture ) {
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Initialise();
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}
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hwaccel = false;
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#if HAVE_AVUTIL_HWCONTEXT_H
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decode = { NULL };
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hwFrame = NULL;
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#endif
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mFormatContext = NULL;
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mVideoStreamId = -1;
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mAudioStreamId = -1;
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mVideoCodecContext = NULL;
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mAudioCodecContext = NULL;
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mVideoCodec = NULL;
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mAudioCodec = NULL;
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mRawFrame = NULL;
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mFrame = NULL;
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frameCount = 0;
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mIsOpening = false;
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mCanCapture = false;
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mOpenStart = 0;
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mReopenThread = 0;
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} // end FFmpegCamera::FFmpegCamera
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FfmpegCamera::~FfmpegCamera() {
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CloseFfmpeg();
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if ( capture ) {
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Terminate();
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}
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avformat_network_deinit();
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}
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void FfmpegCamera::Initialise() {
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if ( logDebugging() )
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av_log_set_level( AV_LOG_DEBUG );
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else
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av_log_set_level( AV_LOG_QUIET );
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av_register_all();
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avformat_network_init();
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}
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void FfmpegCamera::Terminate() {
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}
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int FfmpegCamera::PrimeCapture() {
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mVideoStreamId = -1;
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mAudioStreamId = -1;
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Info( "Priming capture from %s", mPath.c_str() );
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#if THREAD
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if ( OpenFfmpeg() != 0 ) {
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ReopenFfmpeg();
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}
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return 0;
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#else
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return ! OpenFfmpeg();
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#endif
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}
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int FfmpegCamera::PreCapture() {
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// If Reopen was called, then ffmpeg is closed and we need to reopen it.
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if ( ! mCanCapture )
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return OpenFfmpeg();
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// Nothing to do here
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return( 0 );
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}
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int FfmpegCamera::Capture( ZMPacket &zm_packet ) {
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if ( ! mCanCapture ) {
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return -1;
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}
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int ret;
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// If the reopen thread has a value, but mCanCapture != 0, then we have just reopened the connection to the ffmpeg device, and we can clean up the thread.
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if ( mReopenThread != 0 ) {
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void *retval = 0;
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ret = pthread_join(mReopenThread, &retval);
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if ( ret != 0 ) {
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Error("Could not join reopen thread.");
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}
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Info( "Successfully reopened stream." );
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mReopenThread = 0;
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}
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if ( (ret = av_read_frame( mFormatContext, &packet )) < 0 ) {
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if (
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// Check if EOF.
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(ret == AVERROR_EOF || (mFormatContext->pb && mFormatContext->pb->eof_reached)) ||
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// Check for Connection failure.
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(ret == -110)
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) {
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Info( "av_read_frame returned \"%s\". Reopening stream.", av_make_error_string(ret).c_str() );
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ReopenFfmpeg();
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}
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Error( "Unable to read packet from stream %d: error %d \"%s\".", packet.stream_index, ret, av_make_error_string(ret).c_str() );
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return -1;
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}
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Debug( 5, "Got packet from stream %d dts (%d) pts(%d)", packet.stream_index, packet.pts, packet.dts );
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zm_packet.set_packet( &packet );
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zm_av_packet_unref( &packet );
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return 1;
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} // FfmpegCamera::Capture
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int FfmpegCamera::PostCapture() {
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// Nothing to do here
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return 0;
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}
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int FfmpegCamera::OpenFfmpeg() {
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Debug ( 2, "OpenFfmpeg called." );
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int ret;
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mOpenStart = time(NULL);
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mIsOpening = true;
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// Open the input, not necessarily a file
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#if !LIBAVFORMAT_VERSION_CHECK(53, 2, 0, 4, 0)
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Debug ( 1, "Calling av_open_input_file" );
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if ( av_open_input_file( &mFormatContext, mPath.c_str(), NULL, 0, NULL ) != 0 )
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#else
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// Handle options
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AVDictionary *opts = NULL;
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ret = av_dict_parse_string(&opts, Options().c_str(), "=", ",", 0);
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if ( ret < 0 ) {
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Warning("Could not parse ffmpeg input options list '%s'", Options().c_str());
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} else {
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Debug(2,"Could not parse ffmpeg input options list '%s'", Options().c_str());
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}
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// Set transport method as specified by method field, rtpUni is default
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const std::string method = Method();
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if ( method == "rtpMulti" ) {
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ret = av_dict_set(&opts, "rtsp_transport", "udp_multicast", 0);
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} else if ( method == "rtpRtsp" ) {
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ret = av_dict_set(&opts, "rtsp_transport", "tcp", 0);
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} else if ( method == "rtpRtspHttp" ) {
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ret = av_dict_set(&opts, "rtsp_transport", "http", 0);
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} else {
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Warning("Unknown method (%s)", method.c_str() );
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}
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if ( ret < 0 ) {
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Warning("Could not set rtsp_transport method '%s'\n", method.c_str());
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}
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Debug ( 1, "Calling avformat_alloc_context for %s", mPath.c_str() );
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mFormatContext = avformat_alloc_context( );
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monitor->GetLastEventId() ;
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Debug(2, "before avformat_open_input" );
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if ( avformat_open_input( &mFormatContext, mPath.c_str(), NULL, &opts ) != 0 )
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#endif
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{
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mIsOpening = false;
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Error( "Unable to open input %s due to: %s", mPath.c_str(), strerror(errno) );
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return -1;
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}
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Debug(2, "afte avformat_open_input" );
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monitor->GetLastEventId() ;
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AVDictionaryEntry *e = NULL;
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while ( (e = av_dict_get(opts, "", e, AV_DICT_IGNORE_SUFFIX)) != NULL ) {
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Warning( "Option %s not recognized by ffmpeg", e->key);
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}
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monitor->GetLastEventId() ;
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mIsOpening = false;
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Debug ( 1, "Opened input" );
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Info( "Stream open %s", mPath.c_str() );
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#if !LIBAVFORMAT_VERSION_CHECK(53, 6, 0, 6, 0)
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if ( av_find_stream_info( mFormatContext ) < 0 )
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#else
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if ( avformat_find_stream_info( mFormatContext, 0 ) < 0 )
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#endif
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Fatal( "Unable to find stream info from %s due to: %s", mPath.c_str(), strerror(errno) );
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Debug ( 1, "Got stream info" );
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// Find first video stream present
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// The one we want Might not be the first
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mVideoStreamId = -1;
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mAudioStreamId = -1;
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for ( unsigned int i=0; i < mFormatContext->nb_streams; i++ ) {
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#if LIBAVCODEC_VERSION_CHECK(57, 64, 0, 64, 0)
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if ( mFormatContext->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ) {
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#else
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#if (LIBAVCODEC_VERSION_CHECK(52, 64, 0, 64, 0) || LIBAVUTIL_VERSION_CHECK(50, 14, 0, 14, 0))
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if ( mFormatContext->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO ) {
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#else
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if ( mFormatContext->streams[i]->codec->codec_type == CODEC_TYPE_VIDEO ) {
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#endif
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#endif
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if ( mVideoStreamId == -1 ) {
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mVideoStreamId = i;
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// if we break, then we won't find the audio stream
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continue;
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} else {
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Debug(2, "Have another video stream." );
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}
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}
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#if LIBAVCODEC_VERSION_CHECK(57, 64, 0, 64, 0)
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if ( mFormatContext->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO ) {
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#else
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#if (LIBAVCODEC_VERSION_CHECK(52, 64, 0, 64, 0) || LIBAVUTIL_VERSION_CHECK(50, 14, 0, 14, 0))
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if ( mFormatContext->streams[i]->codec->codec_type == AVMEDIA_TYPE_AUDIO ) {
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#else
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if ( mFormatContext->streams[i]->codec->codec_type == CODEC_TYPE_AUDIO ) {
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#endif
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#endif
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if ( mAudioStreamId == -1 ) {
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mAudioStreamId = i;
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} else {
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Debug(2, "Have another audio stream." );
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}
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}
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} // end foreach stream
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if ( mVideoStreamId == -1 )
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Fatal( "Unable to locate video stream in %s", mPath.c_str() );
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if ( mAudioStreamId == -1 )
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Debug( 3, "Unable to locate audio stream in %s", mPath.c_str() );
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Debug ( 3, "Found video stream at index %d", mVideoStreamId );
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Debug ( 3, "Found audio stream at index %d", mAudioStreamId );
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#if LIBAVCODEC_VERSION_CHECK(57, 64, 0, 64, 0)
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mVideoCodecContext = avcodec_alloc_context3( NULL );
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avcodec_parameters_to_context( mVideoCodecContext, mFormatContext->streams[mVideoStreamId]->codecpar );
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#else
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mVideoCodecContext = mFormatContext->streams[mVideoStreamId]->codec;
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#endif
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// STolen from ispy
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//this fixes issues with rtsp streams!! woot.
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//mVideoCodecContext->flags2 |= CODEC_FLAG2_FAST | CODEC_FLAG2_CHUNKS | CODEC_FLAG_LOW_DELAY; // Enable faster H264 decode.
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#ifdef CODEC_FLAG2_FAST
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mVideoCodecContext->flags2 |= CODEC_FLAG2_FAST | CODEC_FLAG_LOW_DELAY;
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#endif
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#if HAVE_AVUTIL_HWCONTEXT_H
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if ( mVideoCodecContext->codec_id == AV_CODEC_ID_H264 ) {
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//vaapi_decoder = new VAAPIDecoder();
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//mVideoCodecContext->opaque = vaapi_decoder;
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//mVideoCodec = vaapi_decoder->openCodec( mVideoCodecContext );
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if ( ! mVideoCodec ) {
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// Try to open an hwaccel codec.
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if ( (mVideoCodec = avcodec_find_decoder_by_name("h264_vaapi")) == NULL ) {
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Debug(1, "Failed to find decoder (h264_vaapi)" );
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} else {
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Debug(1, "Success finding decoder (h264_vaapi)" );
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}
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}
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if ( ! mVideoCodec ) {
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// Try to open an hwaccel codec.
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if ( (mVideoCodec = avcodec_find_decoder_by_name("h264_qsv")) == NULL ) {
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Debug(1, "Failed to find decoder (h264_qsv)" );
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} else {
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Debug(1, "Success finding decoder (h264_qsv)" );
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/* open the hardware device */
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ret = av_hwdevice_ctx_create(&decode.hw_device_ref, AV_HWDEVICE_TYPE_QSV,
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"auto", NULL, 0);
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if (ret < 0) {
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Error("Failed to open the hardware device");
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mVideoCodec = NULL;
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} else {
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mVideoCodecContext->opaque = &decode;
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mVideoCodecContext->get_format = get_format;
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hwaccel = true;
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hwFrame = zm_av_frame_alloc();
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}
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}
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}
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} // end if h264
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#endif
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if ( (!mVideoCodec) and ( (mVideoCodec = avcodec_find_decoder(mVideoCodecContext->codec_id)) == NULL ) ) {
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// Try and get the codec from the codec context
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Fatal("Can't find codec for video stream from %s", mPath.c_str());
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} else {
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Debug(1, "Video Found decoder");
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zm_dump_stream_format(mFormatContext, mVideoStreamId, 0, 0);
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// Open the codec
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#if !LIBAVFORMAT_VERSION_CHECK(53, 8, 0, 8, 0)
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Debug ( 1, "Calling avcodec_open" );
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if ( avcodec_open(mVideoCodecContext, mVideoCodec) < 0 ){
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#else
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Debug ( 1, "Calling video avcodec_open2" );
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if ( avcodec_open2(mVideoCodecContext, mVideoCodec, &opts) < 0 ) {
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#endif
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AVDictionaryEntry *e = NULL;
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while ( (e = av_dict_get(opts, "", e, AV_DICT_IGNORE_SUFFIX)) != NULL ) {
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Warning( "Option %s not recognized by ffmpeg", e->key);
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}
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Fatal( "Unable to open codec for video stream from %s", mPath.c_str() );
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} else {
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AVDictionaryEntry *e = NULL;
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if ( (e = av_dict_get(opts, "", e, AV_DICT_IGNORE_SUFFIX)) != NULL ) {
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Warning( "Option %s not recognized by ffmpeg", e->key);
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}
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}
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} // end if success opening codec
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if ( mVideoCodecContext->hwaccel != NULL ) {
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Debug(1, "HWACCEL in use");
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} else {
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Debug(1, "HWACCEL not in use");
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}
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if ( mAudioStreamId >= 0 ) {
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#if LIBAVCODEC_VERSION_CHECK(57, 64, 0, 64, 0)
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mAudioCodecContext = avcodec_alloc_context3( NULL );
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avcodec_parameters_to_context( mAudioCodecContext, mFormatContext->streams[mAudioStreamId]->codecpar );
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#else
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mAudioCodecContext = mFormatContext->streams[mAudioStreamId]->codec;
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#endif
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if ( (mAudioCodec = avcodec_find_decoder(mAudioCodecContext->codec_id)) == NULL ) {
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Debug(1, "Can't find codec for audio stream from %s", mPath.c_str());
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} else {
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Debug(1, "Audio Found decoder");
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zm_dump_stream_format(mFormatContext, mAudioStreamId, 0, 0);
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// Open the codec
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#if !LIBAVFORMAT_VERSION_CHECK(53, 8, 0, 8, 0)
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Debug ( 1, "Calling avcodec_open" );
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if ( avcodec_open(mAudioCodecContext, mAudioCodec) < 0 )
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#else
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Debug ( 1, "Calling avcodec_open2" );
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if ( avcodec_open2(mAudioCodecContext, mAudioCodec, 0) < 0 )
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#endif
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Fatal( "Unable to open codec for video stream from %s", mPath.c_str() );
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}
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} // end if have audio stream
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Debug ( 1, "Opened audio codec" );
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if ( (unsigned int)mVideoCodecContext->width != width || (unsigned int)mVideoCodecContext->height != height ) {
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Warning( "Monitor dimensions are %dx%d but camera is sending %dx%d", width, height, mVideoCodecContext->width, mVideoCodecContext->height );
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}
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mCanCapture = true;
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return 1;
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} // int FfmpegCamera::OpenFfmpeg()
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int FfmpegCamera::ReopenFfmpeg() {
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Debug(2, "ReopenFfmpeg called.");
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#if THREAD
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mCanCapture = false;
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if ( pthread_create( &mReopenThread, NULL, ReopenFfmpegThreadCallback, (void*) this) != 0 ) {
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// Log a fatal error and exit the process.
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Fatal( "ReopenFfmpeg failed to create worker thread." );
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}
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#else
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CloseFfmpeg();
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OpenFfmpeg();
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#endif
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return 0;
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}
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int FfmpegCamera::CloseFfmpeg() {
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Debug(2, "CloseFfmpeg called.");
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mCanCapture = false;
|
|
|
|
if ( mFrame ) {
|
|
av_frame_free( &mFrame );
|
|
mFrame = NULL;
|
|
}
|
|
if ( mRawFrame ) {
|
|
av_frame_free( &mRawFrame );
|
|
mRawFrame = NULL;
|
|
}
|
|
|
|
|
|
if ( mVideoCodecContext ) {
|
|
avcodec_close(mVideoCodecContext);
|
|
#if LIBAVCODEC_VERSION_CHECK(57, 64, 0, 64, 0)
|
|
avcodec_free_context(&mVideoCodecContext);
|
|
#endif
|
|
mVideoCodecContext = NULL; // Freed by av_close_input_file
|
|
}
|
|
if ( mAudioCodecContext ) {
|
|
avcodec_close(mAudioCodecContext);
|
|
#if LIBAVCODEC_VERSION_CHECK(57, 64, 0, 64, 0)
|
|
avcodec_free_context(&mAudioCodecContext);
|
|
#endif
|
|
mAudioCodecContext = NULL; // Freed by av_close_input_file
|
|
}
|
|
|
|
if ( mFormatContext ) {
|
|
#if !LIBAVFORMAT_VERSION_CHECK(53, 17, 0, 25, 0)
|
|
av_close_input_file( mFormatContext );
|
|
#else
|
|
avformat_close_input( &mFormatContext );
|
|
#endif
|
|
mFormatContext = NULL;
|
|
}
|
|
|
|
return 0;
|
|
} // end int FfmpegCamera::CloseFfmpeg()
|
|
|
|
int FfmpegCamera::FfmpegInterruptCallback(void *ctx) {
|
|
Debug(3,"FfmpegInteruptCallback");
|
|
FfmpegCamera* camera = reinterpret_cast<FfmpegCamera*>(ctx);
|
|
if ( camera->mIsOpening ) {
|
|
int now = time(NULL);
|
|
if ( (now - camera->mOpenStart) > config.ffmpeg_open_timeout ) {
|
|
Error( "Open video took more than %d seconds.", config.ffmpeg_open_timeout );
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
} // end int FfmpegCamera::FfmpegInterruptCallback(void *ctx)
|
|
|
|
void *FfmpegCamera::ReopenFfmpegThreadCallback(void *ctx) {
|
|
Debug(3,"FfmpegReopenThreadtCallback");
|
|
if ( ctx == NULL ) return NULL;
|
|
|
|
FfmpegCamera* camera = reinterpret_cast<FfmpegCamera*>(ctx);
|
|
|
|
while (1) {
|
|
// Close current stream.
|
|
camera->CloseFfmpeg();
|
|
|
|
// Sleep if necessary to not reconnect too fast.
|
|
int wait = config.ffmpeg_open_timeout - (time(NULL) - camera->mOpenStart);
|
|
wait = wait < 0 ? 0 : wait;
|
|
if ( wait > 0 ) {
|
|
Debug( 1, "Sleeping %d seconds before reopening stream.", wait );
|
|
sleep(wait);
|
|
}
|
|
|
|
if ( camera->OpenFfmpeg() == 0 ) {
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
#endif // HAVE_LIBAVFORMAT
|