--- /dev/null
+/*
+ * Blackmagic DeckLink output
+ * Copyright (c) 2013-2014 Ramiro Polla, Luca Barbato, Deti Fliegl
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <DeckLinkAPI.h>
+#ifdef _WIN32
+#include <DeckLinkAPI_i.c>
+#else
+#include <DeckLinkAPIDispatch.cpp>
+#endif
+
+#include <pthread.h>
+#include <semaphore.h>
+
+extern "C" {
+#include "libavformat/avformat.h"
+#include "libavformat/internal.h"
+#include "libavutil/imgutils.h"
+}
+
+#include "decklink_common.h"
+
+#ifdef _WIN32
+IDeckLinkIterator *CreateDeckLinkIteratorInstance(void)
+{
+ IDeckLinkIterator *iter;
+
+ if (CoInitialize(NULL) < 0) {
+ av_log(NULL, AV_LOG_ERROR, "COM initialization failed.\n");
+ return NULL;
+ }
+
+ if (CoCreateInstance(CLSID_CDeckLinkIterator, NULL, CLSCTX_ALL,
+ IID_IDeckLinkIterator, (void**) &iter) != S_OK) {
+ av_log(NULL, AV_LOG_ERROR, "DeckLink drivers not installed.\n");
+ return NULL;
+ }
+
+ return iter;
+}
+#endif
+
+#ifdef _WIN32
+static char *dup_wchar_to_utf8(wchar_t *w)
+{
+ char *s = NULL;
+ int l = WideCharToMultiByte(CP_UTF8, 0, w, -1, 0, 0, 0, 0);
+ s = (char *) av_malloc(l);
+ if (s)
+ WideCharToMultiByte(CP_UTF8, 0, w, -1, s, l, 0, 0);
+ return s;
+}
+#define DECKLINK_STR OLECHAR *
+#define DECKLINK_STRDUP dup_wchar_to_utf8
+#define DECKLINK_FREE(s) SysFreeString(s)
+#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)
+#endif
+
+HRESULT ff_decklink_get_display_name(IDeckLink *This, const char **displayName)
+{
+ DECKLINK_STR tmpDisplayName;
+ HRESULT hr = This->GetDisplayName(&tmpDisplayName);
+ if (hr != S_OK)
+ return hr;
+ *displayName = DECKLINK_STRDUP(tmpDisplayName);
+ DECKLINK_FREE(tmpDisplayName);
+ return hr;
+}
+
+int ff_decklink_set_format(AVFormatContext *avctx,
+ int width, int height,
+ int tb_num, int tb_den,
+ decklink_direction_t direction, int num)
+{
+ struct decklink_cctx *cctx = (struct decklink_cctx *) avctx->priv_data;
+ struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;
+ BMDDisplayModeSupport support;
+ IDeckLinkDisplayModeIterator *itermode;
+ IDeckLinkDisplayMode *mode;
+ int i = 1;
+ HRESULT res;
+
+ if (direction == DIRECTION_IN) {
+ res = ctx->dli->GetDisplayModeIterator (&itermode);
+ } else {
+ res = ctx->dlo->GetDisplayModeIterator (&itermode);
+ }
+
+ if (res!= S_OK) {
+ av_log(avctx, AV_LOG_ERROR, "Could not get Display Mode Iterator\n");
+ return AVERROR(EIO);
+ }
+
+
+ if (tb_num == 1) {
+ tb_num *= 1000;
+ tb_den *= 1000;
+ }
+ ctx->bmd_mode = bmdModeUnknown;
+ while ((ctx->bmd_mode == bmdModeUnknown) && itermode->Next(&mode) == S_OK) {
+ BMDTimeValue bmd_tb_num, bmd_tb_den;
+ int bmd_width = mode->GetWidth();
+ int bmd_height = mode->GetHeight();
+
+ mode->GetFrameRate(&bmd_tb_num, &bmd_tb_den);
+
+ if ((bmd_width == width && bmd_height == height &&
+ bmd_tb_num == tb_num && bmd_tb_den == tb_den) || i == num) {
+ ctx->bmd_mode = mode->GetDisplayMode();
+ ctx->bmd_width = bmd_width;
+ ctx->bmd_height = bmd_height;
+ ctx->bmd_tb_den = bmd_tb_den;
+ ctx->bmd_tb_num = bmd_tb_num;
+ ctx->bmd_field_dominance = mode->GetFieldDominance();
+ av_log(avctx, AV_LOG_INFO, "Found Decklink mode %d x %d with rate %.2f%s\n",
+ bmd_width, bmd_height, (float)bmd_tb_den/(float)bmd_tb_num,
+ (ctx->bmd_field_dominance==bmdLowerFieldFirst || ctx->bmd_field_dominance==bmdUpperFieldFirst)?"(i)":"");
+ }
+
+ mode->Release();
+ i++;
+ }
+
+ itermode->Release();
+
+ if (ctx->bmd_mode == bmdModeUnknown)
+ return -1;
+ if (direction == DIRECTION_IN) {
+ if (ctx->dli->DoesSupportVideoMode(ctx->bmd_mode, bmdFormat8BitYUV,
+ bmdVideoOutputFlagDefault,
+ &support, NULL) != S_OK)
+ return -1;
+ } else {
+ if (ctx->dlo->DoesSupportVideoMode(ctx->bmd_mode, bmdFormat8BitYUV,
+ bmdVideoOutputFlagDefault,
+ &support, NULL) != S_OK)
+ return -1;
+ }
+ if (support == bmdDisplayModeSupported)
+ return 0;
+
+ return -1;
+}
+
+int ff_decklink_set_format(AVFormatContext *avctx, decklink_direction_t direction, int num) {
+ return ff_decklink_set_format(avctx, 0, 0, 0, 0, direction, num);
+}
+
+int ff_decklink_list_devices(AVFormatContext *avctx)
+{
+ IDeckLink *dl = NULL;
+ IDeckLinkIterator *iter = CreateDeckLinkIteratorInstance();
+ if (!iter) {
+ av_log(avctx, AV_LOG_ERROR, "Could not create DeckLink iterator\n");
+ return AVERROR(EIO);
+ }
+ av_log(avctx, AV_LOG_INFO, "Blackmagic DeckLink devices:\n");
+ while (iter->Next(&dl) == S_OK) {
+ const char *displayName;
+ ff_decklink_get_display_name(dl, &displayName);
+ av_log(avctx, AV_LOG_INFO, "\t'%s'\n", displayName);
+ av_free((void *) displayName);
+ dl->Release();
+ }
+ iter->Release();
+ return 0;
+}
+
+int ff_decklink_list_formats(AVFormatContext *avctx, decklink_direction_t direction)
+{
+ struct decklink_cctx *cctx = (struct decklink_cctx *) avctx->priv_data;
+ struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;
+ IDeckLinkDisplayModeIterator *itermode;
+ IDeckLinkDisplayMode *mode;
+ int i=0;
+ HRESULT res;
+
+ if (direction == DIRECTION_IN) {
+ res = ctx->dli->GetDisplayModeIterator (&itermode);
+ } else {
+ res = ctx->dlo->GetDisplayModeIterator (&itermode);
+ }
+
+ if (res!= S_OK) {
+ av_log(avctx, AV_LOG_ERROR, "Could not get Display Mode Iterator\n");
+ return AVERROR(EIO);
+ }
+
+ av_log(avctx, AV_LOG_INFO, "Supported formats for '%s':\n",
+ avctx->filename);
+ while (itermode->Next(&mode) == S_OK) {
+ BMDTimeValue tb_num, tb_den;
+ mode->GetFrameRate(&tb_num, &tb_den);
+ av_log(avctx, AV_LOG_INFO, "\t%d\t%ldx%ld at %d/%d fps",
+ ++i,mode->GetWidth(), mode->GetHeight(),
+ (int) tb_den, (int) tb_num);
+ switch (mode->GetFieldDominance()) {
+ case bmdLowerFieldFirst:
+ av_log(avctx, AV_LOG_INFO, " (interlaced, lower field first)"); break;
+ case bmdUpperFieldFirst:
+ av_log(avctx, AV_LOG_INFO, " (interlaced, upper field first)"); break;
+ }
+ av_log(avctx, AV_LOG_INFO, "\n");
+ mode->Release();
+ }
+
+ itermode->Release();
+
+ return 0;
+}
repositories / deb_ffmpeg.git / blobdiff