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