#define DECKLINK_STR OLECHAR *
#define DECKLINK_STRDUP dup_wchar_to_utf8
#define DECKLINK_FREE(s) SysFreeString(s)
-#define DECKLINK_BOOL BOOL
#elif defined(__APPLE__)
static char *dup_cfstring_to_utf8(CFStringRef w)
{
#define DECKLINK_STR const __CFString *
#define DECKLINK_STRDUP dup_cfstring_to_utf8
#define DECKLINK_FREE(s) CFRelease(s)
-#define DECKLINK_BOOL bool
#else
#define DECKLINK_STR const char *
#define DECKLINK_STRDUP av_strdup
/* free() is needed for a string returned by the DeckLink SDL. */
#define DECKLINK_FREE(s) free((void *) s)
-#define DECKLINK_BOOL bool
#endif
HRESULT ff_decklink_get_display_name(IDeckLink *This, const char **displayName)
#include "libavutil/avutil.h"
#include "libavutil/common.h"
#include "libavutil/imgutils.h"
+#include "libavutil/intreadwrite.h"
#include "libavutil/time.h"
#include "libavutil/mathematics.h"
#include "libavutil/reverse.h"
#include "decklink_dec.h"
#define MAX_WIDTH_VANC 1920
+const BMDDisplayMode AUTODETECT_DEFAULT_MODE = bmdModeNTSC;
typedef struct VANCLineNumber {
BMDDisplayMode mode;
BMDTimeValue frameDuration;
int64_t wallclock = 0;
+ if (ctx->autodetect) {
+ if (videoFrame && !(videoFrame->GetFlags() & bmdFrameHasNoInputSource) &&
+ ctx->bmd_mode == bmdModeUnknown)
+ {
+ ctx->bmd_mode = AUTODETECT_DEFAULT_MODE;
+ }
+ return S_OK;
+ }
+
ctx->frameCount++;
if (ctx->audio_pts_source == PTS_SRC_WALLCLOCK || ctx->video_pts_source == PTS_SRC_WALLCLOCK)
wallclock = av_gettime_relative();
BMDVideoInputFormatChangedEvents events, IDeckLinkDisplayMode *mode,
BMDDetectedVideoInputFormatFlags)
{
+ ctx->bmd_mode = mode->GetDisplayMode();
return S_OK;
}
-static HRESULT decklink_start_input(AVFormatContext *avctx)
-{
- struct decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data;
+static int decklink_autodetect(struct decklink_cctx *cctx) {
struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;
+ DECKLINK_BOOL autodetect_supported = false;
+ int i;
+
+ if (ctx->attr->GetFlag(BMDDeckLinkSupportsInputFormatDetection, &autodetect_supported) != S_OK)
+ return -1;
+ if (autodetect_supported == false)
+ return -1;
+
+ ctx->autodetect = 1;
+ ctx->bmd_mode = bmdModeUnknown;
+ if (ctx->dli->EnableVideoInput(AUTODETECT_DEFAULT_MODE,
+ bmdFormat8BitYUV,
+ bmdVideoInputEnableFormatDetection) != S_OK) {
+ return -1;
+ }
+
+ if (ctx->dli->StartStreams() != S_OK) {
+ return -1;
+ }
+
+ // 1 second timeout
+ for (i = 0; i < 10; i++) {
+ av_usleep(100000);
+ /* Sometimes VideoInputFrameArrived is called without the
+ * bmdFrameHasNoInputSource flag before VideoInputFormatChanged.
+ * So don't break for bmd_mode == AUTODETECT_DEFAULT_MODE. */
+ if (ctx->bmd_mode != bmdModeUnknown &&
+ ctx->bmd_mode != AUTODETECT_DEFAULT_MODE)
+ break;
+ }
+
+ ctx->dli->PauseStreams();
+ ctx->dli->FlushStreams();
+ ctx->autodetect = 0;
+ if (ctx->bmd_mode != bmdModeUnknown) {
+ cctx->format_code = (char *)av_mallocz(5);
+ if (!cctx->format_code)
+ return -1;
+ AV_WB32(cctx->format_code, ctx->bmd_mode);
+ return 0;
+ } else {
+ return -1;
+ }
- ctx->input_callback = new decklink_input_callback(avctx);
- ctx->dli->SetCallback(ctx->input_callback);
- return ctx->dli->StartStreams();
}
extern "C" {
goto error;
}
- if (mode_num > 0 || cctx->format_code) {
- if (ff_decklink_set_format(avctx, DIRECTION_IN, mode_num) < 0) {
- av_log(avctx, AV_LOG_ERROR, "Could not set mode number %d or format code %s for %s\n",
- mode_num, (cctx->format_code) ? cctx->format_code : "(unset)", fname);
+ ctx->input_callback = new decklink_input_callback(avctx);
+ ctx->dli->SetCallback(ctx->input_callback);
+
+ if (mode_num == 0 && !cctx->format_code) {
+ if (decklink_autodetect(cctx) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Cannot Autodetect input stream or No signal\n");
ret = AVERROR(EIO);
goto error;
}
+ av_log(avctx, AV_LOG_INFO, "Autodetected the input mode\n");
+ }
+ if (ff_decklink_set_format(avctx, DIRECTION_IN, mode_num) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Could not set mode number %d or format code %s for %s\n",
+ mode_num, (cctx->format_code) ? cctx->format_code : "(unset)", fname);
+ ret = AVERROR(EIO);
+ goto error;
}
#if !CONFIG_LIBZVBI
avpacket_queue_init (avctx, &ctx->queue);
- if (decklink_start_input (avctx) != S_OK) {
+ if (ctx->dli->StartStreams() != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Cannot start input stream\n");
ret = AVERROR(EIO);
goto error;