| /* -LICENSE-START- |
| ** Copyright (c) 2009 Blackmagic Design |
| ** |
| ** Permission is hereby granted, free of charge, to any person or organization |
| ** obtaining a copy of the software and accompanying documentation covered by |
| ** this license (the "Software") to use, reproduce, display, distribute, |
| ** execute, and transmit the Software, and to prepare derivative works of the |
| ** Software, and to permit third-parties to whom the Software is furnished to |
| ** do so, all subject to the following: |
| ** |
| ** The copyright notices in the Software and this entire statement, including |
| ** the above license grant, this restriction and the following disclaimer, |
| ** must be included in all copies of the Software, in whole or in part, and |
| ** all derivative works of the Software, unless such copies or derivative |
| ** works are solely in the form of machine-executable object code generated by |
| ** a source language processor. |
| ** |
| ** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| ** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| ** FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT |
| ** SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE |
| ** FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, |
| ** ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| ** DEALINGS IN THE SOFTWARE. |
| ** -LICENSE-END- |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| |
| #include "gstdecklinksrc.h" |
| |
| #include "capture.h" |
| |
| #define GST_CAT_DEFAULT gst_decklink_src_debug_category |
| |
| static BMDTimecodeFormat g_timecodeFormat = (BMDTimecodeFormat) 0; |
| |
| DeckLinkCaptureDelegate::DeckLinkCaptureDelegate ():m_refCount (0) |
| { |
| g_mutex_init (&m_mutex); |
| } |
| |
| DeckLinkCaptureDelegate::~DeckLinkCaptureDelegate () |
| { |
| g_mutex_clear (&m_mutex); |
| } |
| |
| ULONG DeckLinkCaptureDelegate::AddRef (void) |
| { |
| g_mutex_lock (&m_mutex); |
| m_refCount++; |
| g_mutex_unlock (&m_mutex); |
| |
| return (ULONG) m_refCount; |
| } |
| |
| ULONG DeckLinkCaptureDelegate::Release (void) |
| { |
| g_mutex_lock (&m_mutex); |
| m_refCount--; |
| g_mutex_unlock (&m_mutex); |
| |
| if (m_refCount == 0) { |
| delete |
| this; |
| return 0; |
| } |
| |
| return (ULONG) m_refCount; |
| } |
| |
| HRESULT |
| DeckLinkCaptureDelegate::VideoInputFrameArrived (IDeckLinkVideoInputFrame * |
| videoFrame, IDeckLinkAudioInputPacket * audioFrame) |
| { |
| GstDecklinkSrc *decklinksrc; |
| const char *timecodeString = NULL; |
| |
| g_return_val_if_fail (priv != NULL, S_OK); |
| g_return_val_if_fail (GST_IS_DECKLINK_SRC (priv), S_OK); |
| |
| decklinksrc = GST_DECKLINK_SRC (priv); |
| |
| if (videoFrame == NULL) { |
| GST_WARNING_OBJECT (decklinksrc, "video frame is NULL"); |
| return S_OK; |
| } |
| |
| if (audioFrame == NULL) { |
| GST_WARNING_OBJECT (decklinksrc, "audio frame is NULL"); |
| return S_OK; |
| } |
| |
| if (videoFrame->GetFlags () & bmdFrameHasNoInputSource) { |
| GST_DEBUG_OBJECT (decklinksrc, "Frame received - No input signal detected"); |
| return S_OK; |
| } |
| |
| /* FIXME: g_timecodeFormat is inited to 0 and never changed? dead code? */ |
| if (g_timecodeFormat != 0) { |
| IDeckLinkTimecode *timecode; |
| if (videoFrame->GetTimecode (g_timecodeFormat, &timecode) == S_OK) { |
| timecode->GetString (&timecodeString); |
| CONVERT_COM_STRING (timecodeString); |
| } |
| } |
| |
| GST_DEBUG_OBJECT (decklinksrc, "Frame received [%s] - %s - Size: %li bytes", |
| timecodeString != NULL ? timecodeString : "No timecode", |
| "Valid Frame", videoFrame->GetRowBytes () * videoFrame->GetHeight ()); |
| |
| if (timecodeString) |
| FREE_COM_STRING (timecodeString); |
| |
| g_mutex_lock (&decklinksrc->mutex); |
| if (decklinksrc->video_frame != NULL) { |
| decklinksrc->dropped_frames++; |
| decklinksrc->video_frame->Release(); |
| if (decklinksrc->audio_frame) { |
| decklinksrc->audio_frame->Release(); |
| } |
| } |
| videoFrame->AddRef (); |
| decklinksrc->video_frame = videoFrame; |
| if (audioFrame) { |
| audioFrame->AddRef (); |
| decklinksrc->audio_frame = audioFrame; |
| } |
| |
| /* increment regardless whether frame was dropped or not */ |
| decklinksrc->frame_num++; |
| |
| g_cond_signal (&decklinksrc->cond); |
| g_mutex_unlock (&decklinksrc->mutex); |
| |
| return S_OK; |
| } |
| |
| HRESULT |
| DeckLinkCaptureDelegate::VideoInputFormatChanged ( |
| BMDVideoInputFormatChangedEvents events, IDeckLinkDisplayMode * mode, |
| BMDDetectedVideoInputFormatFlags) |
| { |
| GstDecklinkSrc *decklinksrc; |
| |
| g_return_val_if_fail (priv != NULL, S_OK); |
| g_return_val_if_fail (GST_IS_DECKLINK_SRC (priv), S_OK); |
| |
| decklinksrc = GST_DECKLINK_SRC (priv); |
| |
| GST_ERROR_OBJECT (decklinksrc, "unimplemented: video input format changed"); |
| |
| return S_OK; |
| } |