Signed-off-by: Deti fliegl <fli...@baycom.de>
---
libavdevice/decklink_common.cpp | 227 ++++++++++++++++++
libavdevice/decklink_common.h | 98 ++++++++
libavdevice/decklink_common_c.h | 32 +++
libavdevice/decklink_dec.cpp | 520 ++++++++++++++++++++++++++++++++++++++++
libavdevice/decklink_dec.h | 32 +++
libavdevice/decklink_dec_c.c | 54 +++++
6 files changed, 963 insertions(+)
create mode 100644 libavdevice/decklink_common.cpp
create mode 100644 libavdevice/decklink_common.h
create mode 100644 libavdevice/decklink_common_c.h
create mode 100644 libavdevice/decklink_dec.cpp
create mode 100644 libavdevice/decklink_dec.h
create mode 100644 libavdevice/decklink_dec_c.c
diff --git a/libavdevice/decklink_common.cpp b/libavdevice/decklink_common.cpp
new file mode 100644
index 0000000..7a9fed5
--- /dev/null
+++ b/libavdevice/decklink_common.cpp
@@ -0,0 +1,227 @@
+/*
+ * 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) != S_OK) {
+ 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
+
+/* free() is needed for a string returned by the DeckLink SDL. */
+#undef free
+
+#ifdef _WIN32
+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
+#else
+#define DECKLINK_STR const char *
+#define DECKLINK_STRDUP av_strdup
+#endif
+
+HRESULT IDeckLink_GetDisplayName(IDeckLink *This, const char **displayName)
+{
+ DECKLINK_STR tmpDisplayName;
+ HRESULT hr = This->GetDisplayName(&tmpDisplayName);
+ if (hr != S_OK)
+ return hr;
+ *displayName = DECKLINK_STRDUP(tmpDisplayName);
+ free((void *) tmpDisplayName);
+ return hr;
+}
+
+int decklink_set_format(struct decklink_ctx *ctx,
+ int width, int height,
+ int tb_num, int tb_den,
+ decklink_direction_t direction, int num)
+{
+ 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(NULL, 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(NULL, 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 decklink_set_format(struct decklink_ctx *ctx, decklink_direction_t
direction, int num) {
+ return decklink_set_format(ctx, 0, 0, 0, 0, direction, num);
+}
+
+int 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;
+ IDeckLink_GetDisplayName(dl, &displayName);
+ av_log(avctx, AV_LOG_INFO, "\t'%s'\n", displayName);
+ av_free((void *) displayName);
+ dl->Release();
+ }
+ iter->Release();
+ return 0;
+}
+
+int 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;
+}
diff --git a/libavdevice/decklink_common.h b/libavdevice/decklink_common.h
new file mode 100644
index 0000000..dc53f23
--- /dev/null
+++ b/libavdevice/decklink_common.h
@@ -0,0 +1,98 @@
+/*
+ * Blackmagic DeckLink common code
+ * 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 "decklink_common_c.h"
+
+class decklink_output_callback;
+class decklink_input_callback;
+
+typedef struct AVPacketQueue {
+ AVPacketList *first_pkt, *last_pkt;
+ int nb_packets;
+ unsigned long long size;
+ int abort_request;
+ pthread_mutex_t mutex;
+ pthread_cond_t cond;
+ AVFormatContext *avctx;
+} AVPacketQueue;
+
+struct decklink_ctx {
+ /* DeckLink SDK interfaces */
+ IDeckLink *dl;
+ IDeckLinkOutput *dlo;
+ IDeckLinkInput *dli;
+ decklink_output_callback *output_callback;
+ decklink_input_callback *input_callback;
+
+ /* DeckLink mode information */
+ BMDTimeValue bmd_tb_den;
+ BMDTimeValue bmd_tb_num;
+ BMDDisplayMode bmd_mode;
+ int bmd_width;
+ int bmd_height;
+ int bmd_field_dominance;
+
+ /* Capture buffer queue */
+ AVPacketQueue queue;
+
+ /* Streams present */
+ int audio;
+ int video;
+
+ /* Status */
+ int playback_started;
+ int capture_started;
+ int64_t last_pts;
+ unsigned long frameCount;
+ unsigned int dropped;
+ AVStream *audio_st;
+ AVStream *video_st;
+
+ /* Options */
+ int list_devices;
+ int list_formats;
+ double preroll;
+
+ int frames_preroll;
+ int frames_buffer;
+
+ sem_t semaphore;
+
+ int channels;
+};
+
+typedef enum { DIRECTION_IN, DIRECTION_OUT} decklink_direction_t;
+
+#ifdef _WIN32
+typedef unsigned long buffercount_type;
+IDeckLinkIterator *CreateDeckLinkIteratorInstance(void);
+char *dup_wchar_to_utf8(wchar_t *w);
+#else
+typedef uint32_t buffercount_type;
+#endif
+
+
+HRESULT IDeckLink_GetDisplayName(IDeckLink *This, const char **displayName);
+int decklink_set_format(struct decklink_ctx *ctx, int width, int height, int
tb_num, int tb_den, decklink_direction_t direction = DIRECTION_OUT, int num =
0);
+int decklink_set_format(struct decklink_ctx *ctx, decklink_direction_t
direction, int num);
+int decklink_list_devices(AVFormatContext *avctx);
+int decklink_list_formats(AVFormatContext *avctx, decklink_direction_t
direction = DIRECTION_OUT);
+
diff --git a/libavdevice/decklink_common_c.h b/libavdevice/decklink_common_c.h
new file mode 100644
index 0000000..861a51a
--- /dev/null
+++ b/libavdevice/decklink_common_c.h
@@ -0,0 +1,32 @@
+/*
+ * Blackmagic DeckLink common code
+ * Copyright (c) 2013-2014 Ramiro Polla
+ *
+ * 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
+ */
+
+struct decklink_cctx {
+ const AVClass *cclass;
+
+ void *ctx;
+
+ /* Options */
+ int list_devices;
+ int list_formats;
+ double preroll;
+};
+
diff --git a/libavdevice/decklink_dec.cpp b/libavdevice/decklink_dec.cpp
new file mode 100644
index 0000000..ebf555f
--- /dev/null
+++ b/libavdevice/decklink_dec.cpp
@@ -0,0 +1,520 @@
+/*
+ * Blackmagic DeckLink output
+ * Copyright (c) 2013-2014 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>
+
+#include <pthread.h>
+#include <semaphore.h>
+
+extern "C" {
+#include "libavformat/avformat.h"
+#include "libavformat/internal.h"
+#include "libavutil/imgutils.h"
+}
+
+#include "decklink_common.h"
+#include "decklink_dec.h"
+
+static void avpacket_queue_init(AVFormatContext *avctx, AVPacketQueue *q)
+{
+ memset(q, 0, sizeof(AVPacketQueue));
+ pthread_mutex_init(&q->mutex, NULL);
+ pthread_cond_init(&q->cond, NULL);
+ q->avctx = avctx;
+}
+
+static void avpacket_queue_flush(AVPacketQueue *q)
+{
+ AVPacketList *pkt, *pkt1;
+
+ pthread_mutex_lock(&q->mutex);
+ for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
+ pkt1 = pkt->next;
+ av_free_packet(&pkt->pkt);
+ av_freep(&pkt);
+ }
+ q->last_pkt = NULL;
+ q->first_pkt = NULL;
+ q->nb_packets = 0;
+ q->size = 0;
+ pthread_mutex_unlock(&q->mutex);
+}
+
+static void avpacket_queue_end(AVPacketQueue *q)
+{
+ avpacket_queue_flush(q);
+ pthread_mutex_destroy(&q->mutex);
+ pthread_cond_destroy(&q->cond);
+}
+
+static unsigned long long avpacket_queue_size(AVPacketQueue *q)
+{
+ unsigned long long size;
+ pthread_mutex_lock(&q->mutex);
+ size = q->size;
+ pthread_mutex_unlock(&q->mutex);
+ return size;
+}
+
+static int avpacket_queue_put(AVPacketQueue *q, AVPacket *pkt)
+{
+ AVPacketList *pkt1;
+
+ // Drop Packet if queue size is > 1GB
+ if (avpacket_queue_size(q) > 1024 * 1024 * 1024 ) {
+ av_log(q->avctx, AV_LOG_WARNING, "Decklink input buffer overrun!\n");
+ return -1;
+ }
+ /* duplicate the packet */
+ if (av_dup_packet(pkt) < 0) {
+ return -1;
+ }
+
+ pkt1 = (AVPacketList *)av_malloc(sizeof(AVPacketList));
+ if (!pkt1) {
+ return -1;
+ }
+ pkt1->pkt = *pkt;
+ pkt1->next = NULL;
+
+ pthread_mutex_lock(&q->mutex);
+
+ if (!q->last_pkt) {
+ q->first_pkt = pkt1;
+ } else {
+ q->last_pkt->next = pkt1;
+ }
+
+ q->last_pkt = pkt1;
+ q->nb_packets++;
+ q->size += pkt1->pkt.size + sizeof(*pkt1);
+
+ pthread_cond_signal(&q->cond);
+
+ pthread_mutex_unlock(&q->mutex);
+ return 0;
+}
+
+static int avpacket_queue_get(AVPacketQueue *q, AVPacket *pkt, int block)
+{
+ AVPacketList *pkt1;
+ int ret;
+
+ pthread_mutex_lock(&q->mutex);
+
+ for (;; ) {
+ pkt1 = q->first_pkt;
+ if (pkt1) {
+ q->first_pkt = pkt1->next;
+ if (!q->first_pkt) {
+ q->last_pkt = NULL;
+ }
+ q->nb_packets--;
+ q->size -= pkt1->pkt.size + sizeof(*pkt1);
+ *pkt = pkt1->pkt;
+ av_free(pkt1);
+ ret = 1;
+ break;
+ } else if (!block) {
+ ret = 0;
+ break;
+ } else {
+ pthread_cond_wait(&q->cond, &q->mutex);
+ }
+ }
+ pthread_mutex_unlock(&q->mutex);
+ return ret;
+}
+
+class decklink_input_callback : public IDeckLinkInputCallback
+{
+public:
+ decklink_input_callback(AVFormatContext *_avctx);
+ ~decklink_input_callback();
+
+ virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, LPVOID
*ppv) { return E_NOINTERFACE; }
+ virtual ULONG STDMETHODCALLTYPE AddRef(void);
+ virtual ULONG STDMETHODCALLTYPE Release(void);
+ virtual HRESULT STDMETHODCALLTYPE
VideoInputFormatChanged(BMDVideoInputFormatChangedEvents,
IDeckLinkDisplayMode*, BMDDetectedVideoInputFormatFlags);
+ virtual HRESULT STDMETHODCALLTYPE
VideoInputFrameArrived(IDeckLinkVideoInputFrame*, IDeckLinkAudioInputPacket*);
+
+private:
+ ULONG m_refCount;
+ pthread_mutex_t m_mutex;
+ AVFormatContext *avctx;
+ decklink_ctx *ctx;
+ int no_video;
+ int64_t initial_video_pts;
+ int64_t initial_audio_pts;
+};
+
+decklink_input_callback::decklink_input_callback(AVFormatContext *_avctx) :
m_refCount(0)
+{
+ avctx = _avctx;
+ decklink_cctx *cctx = (struct decklink_cctx *) avctx->priv_data;
+ ctx = (struct decklink_ctx *) cctx->ctx;
+ initial_audio_pts = initial_video_pts = AV_NOPTS_VALUE;
+ pthread_mutex_init(&m_mutex, NULL);
+}
+
+decklink_input_callback::~decklink_input_callback()
+{
+ pthread_mutex_destroy(&m_mutex);
+}
+
+ULONG decklink_input_callback::AddRef(void)
+{
+ pthread_mutex_lock(&m_mutex);
+ m_refCount++;
+ pthread_mutex_unlock(&m_mutex);
+
+ return (ULONG)m_refCount;
+}
+
+ULONG decklink_input_callback::Release(void)
+{
+ pthread_mutex_lock(&m_mutex);
+ m_refCount--;
+ pthread_mutex_unlock(&m_mutex);
+
+ if (m_refCount == 0) {
+ delete this;
+ return 0;
+ }
+
+ return (ULONG)m_refCount;
+}
+
+HRESULT decklink_input_callback::VideoInputFrameArrived(
+ IDeckLinkVideoInputFrame *videoFrame, IDeckLinkAudioInputPacket
*audioFrame)
+{
+ void *frameBytes;
+ void *audioFrameBytes;
+ BMDTimeValue frameTime;
+ BMDTimeValue frameDuration;
+
+ ctx->frameCount++;
+
+ // Handle Video Frame
+ if (videoFrame) {
+ AVPacket pkt;
+ AVCodecContext *c;
+ av_init_packet(&pkt);
+ c = ctx->video_st->codec;
+ if (ctx->frameCount % 25 == 0) {
+ unsigned long long qsize = avpacket_queue_size(&ctx->queue);
+ av_log(avctx, AV_LOG_DEBUG,
+ "Frame received (#%lu) - Valid (%liB) - QSize %fMB\n",
+ ctx->frameCount,
+ videoFrame->GetRowBytes() * videoFrame->GetHeight(),
+ (double)qsize / 1024 / 1024);
+ }
+
+ videoFrame->GetBytes(&frameBytes);
+ videoFrame->GetStreamTime(&frameTime, &frameDuration,
+ ctx->video_st->time_base.den);
+
+ if (videoFrame->GetFlags() & bmdFrameHasNoInputSource) {
+ unsigned bars[8] = {
+ 0xEA80EA80, 0xD292D210, 0xA910A9A5, 0x90229035,
+ 0x6ADD6ACA, 0x51EF515A, 0x286D28EF, 0x10801080 };
+ int width = videoFrame->GetWidth();
+ int height = videoFrame->GetHeight();
+ unsigned *p = (unsigned *)frameBytes;
+
+ for (int y = 0; y < height; y++) {
+ for (int x = 0; x < width; x += 2)
+ *p++ = bars[(x * 8) / width];
+ }
+
+ if (!no_video) {
+ av_log(avctx, AV_LOG_WARNING, "Frame received (#%lu) - No
input signal detected "
+ "- Frames dropped %u\n", ctx->frameCount,
++ctx->dropped);
+ }
+ no_video = 1;
+ } else {
+ if (no_video) {
+ av_log(avctx, AV_LOG_WARNING, "Frame received (#%lu) - Input
returned "
+ "- Frames dropped %u\n", ctx->frameCount,
++ctx->dropped);
+ }
+ no_video = 0;
+ }
+
+ pkt.pts = frameTime / ctx->video_st->time_base.num;
+
+ if (initial_video_pts == AV_NOPTS_VALUE) {
+ initial_video_pts = pkt.pts;
+ }
+
+ pkt.pts -= initial_video_pts;
+ pkt.dts = pkt.pts;
+
+ pkt.duration = frameDuration;
+ //To be made sure it still applies
+ pkt.flags |= AV_PKT_FLAG_KEY;
+ pkt.stream_index = ctx->video_st->index;
+ pkt.data = (uint8_t *)frameBytes;
+ pkt.size = videoFrame->GetRowBytes() *
+ videoFrame->GetHeight();
+ //fprintf(stderr,"Video Frame size %d ts %d\n", pkt.size, pkt.pts);
+ c->frame_number++;
+ if (avpacket_queue_put(&ctx->queue, &pkt) < 0) {
+ ++ctx->dropped;
+ }
+ }
+
+ // Handle Audio Frame
+ if (audioFrame) {
+ AVCodecContext *c;
+ AVPacket pkt;
+ BMDTimeValue audio_pts;
+ av_init_packet(&pkt);
+
+ c = ctx->audio_st->codec;
+ //hack among hacks
+ pkt.size = audioFrame->GetSampleFrameCount() *
ctx->audio_st->codec->channels * (16 / 8);
+ audioFrame->GetBytes(&audioFrameBytes);
+ audioFrame->GetPacketTime(&audio_pts, ctx->audio_st->time_base.den);
+ pkt.pts = audio_pts / ctx->audio_st->time_base.num;
+
+ if (initial_audio_pts == AV_NOPTS_VALUE) {
+ initial_audio_pts = pkt.pts;
+ }
+
+ pkt.pts -= initial_audio_pts;
+ pkt.dts = pkt.pts;
+
+ //fprintf(stderr,"Audio Frame size %d ts %d\n", pkt.size, pkt.pts);
+ pkt.flags |= AV_PKT_FLAG_KEY;
+ pkt.stream_index = ctx->audio_st->index;
+ pkt.data = (uint8_t *)audioFrameBytes;
+
+ c->frame_number++;
+ if (avpacket_queue_put(&ctx->queue, &pkt) < 0) {
+ ++ctx->dropped;
+ }
+ }
+
+ return S_OK;
+}
+
+HRESULT decklink_input_callback::VideoInputFormatChanged(
+ BMDVideoInputFormatChangedEvents events, IDeckLinkDisplayMode *mode,
+ BMDDetectedVideoInputFormatFlags)
+{
+ return S_OK;
+}
+
+static HRESULT decklink_start_input(AVFormatContext *avctx)
+{
+ struct decklink_cctx *cctx = (struct decklink_cctx *) avctx->priv_data;
+ struct decklink_ctx *ctx = (struct decklink_ctx *) cctx->ctx;
+
+ ctx->input_callback = new decklink_input_callback(avctx);
+ ctx->dli->SetCallback(ctx->input_callback);
+ return ctx->dli->StartStreams();
+}
+
+extern "C" {
+
+av_cold int ff_decklink_read_close(AVFormatContext *avctx)
+{
+ struct decklink_cctx *cctx = (struct decklink_cctx *) avctx->priv_data;
+ struct decklink_ctx *ctx = (struct decklink_ctx *) cctx->ctx;
+
+ if (ctx->capture_started) {
+ ctx->dli->StopStreams();
+ ctx->dli->DisableVideoInput();
+ ctx->dli->DisableAudioInput();
+ }
+
+ if (ctx->dli)
+ ctx->dli->Release();
+ if (ctx->dl)
+ ctx->dl->Release();
+
+ avpacket_queue_end(&ctx->queue);
+
+ av_freep(&cctx->ctx);
+
+ return 0;
+}
+
+av_cold int ff_decklink_read_header(AVFormatContext *avctx)
+{
+ struct decklink_cctx *cctx = (struct decklink_cctx *) avctx->priv_data;
+ struct decklink_ctx *ctx;
+ IDeckLinkDisplayModeIterator *itermode;
+ IDeckLinkIterator *iter;
+ IDeckLink *dl = NULL;
+ AVStream *st;
+ HRESULT result;
+ char fname[1024];
+ char *tmp;
+ int mode_num = 0;
+
+ ctx = (struct decklink_ctx *) av_mallocz(sizeof(struct decklink_ctx));
+ if (!ctx)
+ return AVERROR(ENOMEM);
+ ctx->list_devices = cctx->list_devices;
+ ctx->list_formats = cctx->list_formats;
+ ctx->preroll = cctx->preroll;
+ cctx->ctx = ctx;
+
+ iter = CreateDeckLinkIteratorInstance();
+ if (!iter) {
+ av_log(avctx, AV_LOG_ERROR, "Could not create DeckLink iterator\n");
+ return AVERROR(EIO);
+ }
+
+ /* List available devices. */
+ if (ctx->list_devices) {
+ decklink_list_devices(avctx);
+ return AVERROR_EXIT;
+ }
+
+ strcpy (fname, avctx->filename);
+ tmp=strchr (fname, '@');
+ if (tmp != NULL) {
+ mode_num = atoi (tmp+1);
+ *tmp = 0;
+ }
+
+ /* Open device. */
+ while (iter->Next(&dl) == S_OK) {
+ const char *displayName;
+ IDeckLink_GetDisplayName(dl, &displayName);
+ if (!strcmp(fname, displayName)) {
+ av_free((void *) displayName);
+ ctx->dl = dl;
+ break;
+ }
+ av_free((void *) displayName);
+ dl->Release();
+ }
+ iter->Release();
+ if (!ctx->dl) {
+ av_log(avctx, AV_LOG_ERROR, "Could not open '%s'\n", fname);
+ return AVERROR(EIO);
+ }
+
+ /* Get input device. */
+ if (ctx->dl->QueryInterface(IID_IDeckLinkInput, (void **) &ctx->dli) !=
S_OK) {
+ av_log(avctx, AV_LOG_ERROR, "Could not open output device from '%s'\n",
+ avctx->filename);
+ ctx->dl->Release();
+ return AVERROR(EIO);
+ }
+
+ /* List supported formats. */
+ if (ctx->list_formats) {
+ decklink_list_formats(avctx, DIRECTION_IN);
+ ctx->dli->Release();
+ ctx->dl->Release();
+ return AVERROR_EXIT;
+ }
+
+ if (ctx->dli->GetDisplayModeIterator(&itermode) != S_OK) {
+ av_log(avctx, AV_LOG_ERROR, "Could not get Display Mode Iterator\n");
+ ctx->dl->Release();
+ return AVERROR(EIO);
+ }
+
+ if (mode_num > 0) {
+ if (decklink_set_format(ctx, DIRECTION_IN, mode_num) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Could not set mode %d for %s\n",
mode_num, fname);
+ goto error;
+ }
+ }
+
+ itermode->Release();
+
+ /* Setup streams. */
+ st = avformat_new_stream(avctx, NULL);
+ if (!st) {
+ av_log(avctx, AV_LOG_ERROR, "Cannot add stream\n");
+ goto error;
+ }
+ st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
+ st->codec->codec_id = AV_CODEC_ID_PCM_S16LE;
+ st->codec->sample_rate = bmdAudioSampleRate48kHz;
+ st->codec->channels = 2;
+ avpriv_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */
+ ctx->audio_st=st;
+
+ st = avformat_new_stream(avctx, NULL);
+ if (!st) {
+ av_log(avctx, AV_LOG_ERROR, "Cannot add stream\n");
+ goto error;
+ }
+ st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
+ st->codec->codec_id = AV_CODEC_ID_RAWVIDEO;
+ st->codec->width = 1920;
+ st->codec->height = 1080;
+
+ st->codec->pix_fmt = AV_PIX_FMT_UYVY422;
+ st->codec->bit_rate = avpicture_get_size(st->codec->pix_fmt, 1920,
1080) * /*av_q2d(25)*/ 25 * 8;
+ st->codec->codec_tag = MKTAG('U', 'Y', 'V', 'Y');
+ avpriv_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */
+ ctx->video_st=st;
+
+ result = ctx->dli->EnableAudioInput(bmdAudioSampleRate48kHz,
bmdAudioSampleType16bitInteger, 2);
+
+ if (result != S_OK) {
+ av_log(avctx, AV_LOG_ERROR, "Cannot enable audio input\n");
+ goto error;
+ }
+
+ result = ctx->dli->EnableVideoInput(ctx->bmd_mode, bmdFormat8BitYUV,
bmdVideoInputFlagDefault);
+
+ if (result != S_OK) {
+ av_log(avctx, AV_LOG_ERROR, "Cannot enable video input\n");
+ goto error;
+ }
+
+ avpacket_queue_init (avctx, &ctx->queue);
+
+ if (decklink_start_input (avctx) != S_OK) {
+ av_log(avctx, AV_LOG_ERROR, "Cannot start input stream\n");
+ goto error;
+ }
+
+ return 0;
+
+error:
+
+ ctx->dli->Release();
+ ctx->dl->Release();
+
+ return AVERROR(EIO);
+}
+
+int ff_decklink_read_packet(AVFormatContext *avctx, AVPacket *pkt)
+{
+ struct decklink_cctx *cctx = (struct decklink_cctx *) avctx->priv_data;
+ struct decklink_ctx *ctx = (struct decklink_ctx *) cctx->ctx;
+
+ avpacket_queue_get(&ctx->queue, pkt, 1);
+
+ return 0;
+}
+
+} /* extern "C" */
diff --git a/libavdevice/decklink_dec.h b/libavdevice/decklink_dec.h
new file mode 100644
index 0000000..6bd9226
--- /dev/null
+++ b/libavdevice/decklink_dec.h
@@ -0,0 +1,32 @@
+/*
+ * Blackmagic DeckLink output
+ * Copyright (c) 2013-2014 Ramiro Polla
+ *
+ * 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
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int ff_decklink_read_header(AVFormatContext *avctx);
+int ff_decklink_read_packet(AVFormatContext *avctx, AVPacket *pkt);
+int ff_decklink_read_close(AVFormatContext *avctx);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
diff --git a/libavdevice/decklink_dec_c.c b/libavdevice/decklink_dec_c.c
new file mode 100644
index 0000000..2aea277
--- /dev/null
+++ b/libavdevice/decklink_dec_c.c
@@ -0,0 +1,54 @@
+/*
+ * Blackmagic DeckLink output
+ * Copyright (c) 2014 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 "libavformat/avformat.h"
+#include "libavutil/opt.h"
+
+#include "decklink_common_c.h"
+#include "decklink_dec.h"
+
+#define OFFSET(x) offsetof(struct decklink_cctx, x)
+#define DEC AV_OPT_FLAG_DECODING_PARAM
+
+static const AVOption options[] = {
+ { "list_devices", "list available devices" , OFFSET(list_devices),
AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 1, DEC },
+ { "list_formats", "list supported formats" , OFFSET(list_formats),
AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 1, DEC },
+ { NULL },
+};
+
+static const AVClass decklink_demuxer_class = {
+ .class_name = "Blackmagic DeckLink demuxer",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+ .category = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
+};
+
+AVInputFormat ff_decklink_demuxer = {
+ .name = "decklink",
+ .long_name = NULL_IF_CONFIG_SMALL("Blackmagic DeckLink input"),
+ .flags = AVFMT_NOFILE | AVFMT_RAWPICTURE,
+ .priv_class = &decklink_demuxer_class,
+ .priv_data_size = sizeof(struct decklink_cctx),
+ .read_header = ff_decklink_read_header,
+ .read_packet = ff_decklink_read_packet,
+ .read_close = ff_decklink_read_close,
+};
--
1.9.1
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