/* * 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 internal.h first to avoid conflict between winsock.h (used by * DeckLink headers) and winsock2.h (used by libavformat) in MSVC++ builds */extern "C" {#include "libavformat/internal.h"} #include <DeckLinkAPI.h>#ifdef _WIN32#include <DeckLinkAPI_i.c>#else/* The file provided by the SDK is known to be missing prototypes, which doesn't   cause issues with GCC since the warning doesn't apply to C++ files.  However   Clang does complain (and warnings are treated as errors), so suppress the   warning just for this one file */#ifdef __clang__#pragma clang diagnostic push#pragma clang diagnostic ignored "-Wmissing-prototypes"#endif#include <DeckLinkAPIDispatch.cpp>#ifdef __clang__#pragma clang diagnostic pop#endif#endif extern "C" {#include "libavformat/avformat.h"#include "libavutil/imgutils.h"#include "libavutil/intreadwrite.h"#include "libavutil/bswap.h"#include "avdevice.h"} #include "decklink_common.h" static IDeckLinkIterator *decklink_create_iterator(AVFormatContext *avctx){    IDeckLinkIterator *iter; #ifdef _WIN32    if (CoInitialize(NULL) < 0) {        av_log(avctx, AV_LOG_ERROR, "COM initialization failed.\n");        return NULL;    }     if (CoCreateInstance(CLSID_CDeckLinkIterator, NULL, CLSCTX_ALL,                         IID_IDeckLinkIterator, (void**) &iter) != S_OK) {        iter = NULL;    }#else    iter = CreateDeckLinkIteratorInstance();#endif    if (!iter) {        av_log(avctx, AV_LOG_ERROR, "Could not create DeckLink iterator. "                                    "Make sure you have DeckLink drivers " BLACKMAGIC_DECKLINK_API_VERSION_STRING " or newer installed.\n");    } else {        IDeckLinkAPIInformation *api;        int64_t version;#ifdef _WIN32        if (CoCreateInstance(CLSID_CDeckLinkAPIInformation, NULL, CLSCTX_ALL,                             IID_IDeckLinkAPIInformation, (void**) &api) != S_OK) {            api = NULL;        }#else        api = CreateDeckLinkAPIInformationInstance();#endif        if (api && api->GetInt(BMDDeckLinkAPIVersion, &version) == S_OK) {            if (version < BLACKMAGIC_DECKLINK_API_VERSION)                av_log(avctx, AV_LOG_WARNING, "Installed DeckLink drivers are too old and may be incompatible with the SDK this module was built against. "                                              "Make sure you have DeckLink drivers " BLACKMAGIC_DECKLINK_API_VERSION_STRING " or newer installed.\n");        } else {            av_log(avctx, AV_LOG_ERROR, "Failed to check installed DeckLink API version.\n");        }        if (api)            api->Release();    }     return iter;} static int decklink_get_attr_string(IDeckLink *dl, BMDDeckLinkAttributeID cfg_id, const char **s){    DECKLINK_STR tmp;    HRESULT hr;    IDeckLinkProfileAttributes *attr;    *s = NULL;    if (dl->QueryInterface(IID_IDeckLinkProfileAttributes, (void **)&attr) != S_OK)        return AVERROR_EXTERNAL;    hr = attr->GetString(cfg_id, &tmp);    attr->Release();    if (hr == S_OK) {        *s = DECKLINK_STRDUP(tmp);        DECKLINK_FREE(tmp);        if (!*s)            return AVERROR(ENOMEM);    } else if (hr == E_FAIL) {        return AVERROR_EXTERNAL;    }    return 0;} static int decklink_select_input(AVFormatContext *avctx, BMDDeckLinkConfigurationID cfg_id){    struct decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data;    struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;    BMDDeckLinkAttributeID attr_id = (cfg_id == bmdDeckLinkConfigAudioInputConnection) ? BMDDeckLinkAudioInputConnections : BMDDeckLinkVideoInputConnections;    int64_t bmd_input              = (cfg_id == bmdDeckLinkConfigAudioInputConnection) ? (int64_t)ctx->audio_input : (int64_t)ctx->video_input;    const char *type_name          = (cfg_id == bmdDeckLinkConfigAudioInputConnection) ? "audio" : "video";    int64_t supported_connections = 0;    HRESULT res;     if (bmd_input) {        res = ctx->attr->GetInt(attr_id, &supported_connections);        if (res != S_OK) {            av_log(avctx, AV_LOG_ERROR, "Failed to query supported %s inputs.\n", type_name);            return AVERROR_EXTERNAL;        }        if ((supported_connections & bmd_input) != bmd_input) {            av_log(avctx, AV_LOG_ERROR, "Device does not support selected %s input.\n", type_name);            return AVERROR(ENOSYS);        }        res = ctx->cfg->SetInt(cfg_id, bmd_input);        if (res != S_OK) {            av_log(avctx, AV_LOG_ERROR, "Failed to select %s input.\n", type_name);            return AVERROR_EXTERNAL;        }    }    return 0;} static DECKLINK_BOOL field_order_eq(enum AVFieldOrder field_order, BMDFieldDominance bmd_field_order){    if (field_order == AV_FIELD_UNKNOWN)        return true;    if ((field_order == AV_FIELD_TT || field_order == AV_FIELD_TB) && bmd_field_order == bmdUpperFieldFirst)        return true;    if ((field_order == AV_FIELD_BB || field_order == AV_FIELD_BT) && bmd_field_order == bmdLowerFieldFirst)        return true;    if (field_order == AV_FIELD_PROGRESSIVE && (bmd_field_order == bmdProgressiveFrame || bmd_field_order == bmdProgressiveSegmentedFrame))        return true;    return false;} int ff_decklink_set_configs(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;    HRESULT res;     if (ctx->duplex_mode) {        DECKLINK_BOOL duplex_supported = false; #if BLACKMAGIC_DECKLINK_API_VERSION >= 0x0b000000        IDeckLinkProfileManager *manager = NULL;        if (ctx->dl->QueryInterface(IID_IDeckLinkProfileManager, (void **)&manager) == S_OK)            duplex_supported = true;#else        if (ctx->attr->GetFlag(BMDDeckLinkSupportsDuplexModeConfiguration, &duplex_supported) != S_OK)            duplex_supported = false;#endif         if (duplex_supported) {#if BLACKMAGIC_DECKLINK_API_VERSION >= 0x0b000000            IDeckLinkProfile *profile = NULL;            BMDProfileID bmd_profile_id;             if (ctx->duplex_mode < 0 || ctx->duplex_mode >= FF_ARRAY_ELEMS(decklink_profile_id_map))                return EINVAL;            bmd_profile_id = decklink_profile_id_map[ctx->duplex_mode];            res = manager->GetProfile(bmd_profile_id, &profile);            if (res == S_OK) {                res = profile->SetActive();                profile->Release();            }            manager->Release();#else            res = ctx->cfg->SetInt(bmdDeckLinkConfigDuplexMode, ctx->duplex_mode == 2 ? bmdDuplexModeFull : bmdDuplexModeHalf);#endif            if (res != S_OK)                av_log(avctx, AV_LOG_WARNING, "Setting duplex mode failed.\n");            else                av_log(avctx, AV_LOG_VERBOSE, "Successfully set duplex mode to %s duplex.\n", ctx->duplex_mode == 2 || ctx->duplex_mode == 4 ? "full" : "half");        } else {            av_log(avctx, AV_LOG_WARNING, "Unable to set duplex mode, because it is not supported.\n");        }    }    if (direction == DIRECTION_IN) {        int ret;        ret = decklink_select_input(avctx, bmdDeckLinkConfigAudioInputConnection);        if (ret < 0)            return ret;        ret = decklink_select_input(avctx, bmdDeckLinkConfigVideoInputConnection);        if (ret < 0)            return ret;    }    if (direction == DIRECTION_OUT && cctx->timing_offset != INT_MIN) {        res = ctx->cfg->SetInt(bmdDeckLinkConfigReferenceInputTimingOffset, cctx->timing_offset);        if (res != S_OK)            av_log(avctx, AV_LOG_WARNING, "Setting timing offset failed.\n");    }     if (direction == DIRECTION_OUT && ctx->link > 0) {        res = ctx->cfg->SetInt(bmdDeckLinkConfigSDIOutputLinkConfiguration, ctx->link);        if (res != S_OK)            av_log(avctx, AV_LOG_WARNING, "Setting link configuration failed.\n");        else            av_log(avctx, AV_LOG_VERBOSE, "Successfully set link configuration: 0x%x.\n", ctx->link);        if (ctx->link == bmdLinkConfigurationQuadLink && cctx->sqd >= 0) {            res = ctx->cfg->SetFlag(bmdDeckLinkConfigQuadLinkSDIVideoOutputSquareDivisionSplit, cctx->sqd);            if (res != S_OK)                av_log(avctx, AV_LOG_WARNING, "Setting SquareDivisionSplit failed.\n");            else                av_log(avctx, AV_LOG_VERBOSE, "Successfully set SquareDivisionSplit.\n");        }    }     if (direction == DIRECTION_OUT && cctx->level_a >= 0) {        DECKLINK_BOOL level_a_supported = false;         if (ctx->attr->GetFlag(BMDDeckLinkSupportsSMPTELevelAOutput, &level_a_supported) != S_OK)            level_a_supported = false;         if (level_a_supported) {            res = ctx->cfg->SetFlag(bmdDeckLinkConfigSMPTELevelAOutput, cctx->level_a);            if (res != S_OK)                av_log(avctx, AV_LOG_WARNING, "Setting SMPTE levelA failed.\n");            else                av_log(avctx, AV_LOG_VERBOSE, "Successfully set SMPTE levelA.\n");        } else {            av_log(avctx, AV_LOG_WARNING, "Unable to set SMPTE levelA mode, because it is not supported.\n");        }    }     return 0;} int ff_decklink_set_format(AVFormatContext *avctx,                               int width, int height,                               int tb_num, int tb_den,                               enum AVFieldOrder field_order,                               decklink_direction_t direction){    struct decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data;    struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;#if BLACKMAGIC_DECKLINK_API_VERSION >= 0x0b000000    DECKLINK_BOOL support;#else    BMDDisplayModeSupport support;#endif    IDeckLinkDisplayModeIterator *itermode;    IDeckLinkDisplayMode *mode;    int i = 1;    HRESULT res;     av_log(avctx, AV_LOG_DEBUG, "Trying to find mode for frame size %dx%d, frame timing %d/%d, field order %d, direction %d, format code %s\n",        width, height, tb_num, tb_den, field_order, direction, cctx->format_code ? cctx->format_code : "(unset)");     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);    }     char format_buf[] = "    ";    if (cctx->format_code)        memcpy(format_buf, cctx->format_code, FFMIN(strlen(cctx->format_code), sizeof(format_buf)));    BMDDisplayMode target_mode = (BMDDisplayMode)AV_RB32(format_buf);    AVRational target_tb = av_make_q(tb_num, tb_den);    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();        BMDDisplayMode bmd_mode = mode->GetDisplayMode();        BMDFieldDominance bmd_field_dominance = mode->GetFieldDominance();         mode->GetFrameRate(&bmd_tb_num, &bmd_tb_den);        AVRational mode_tb = av_make_q(bmd_tb_num, bmd_tb_den);         if ((bmd_width == width &&             bmd_height == height &&             !av_cmp_q(mode_tb, target_tb) &&             field_order_eq(field_order, bmd_field_dominance))             || target_mode == bmd_mode) {            ctx->bmd_mode   = bmd_mode;            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 = bmd_field_dominance;            av_log(avctx, AV_LOG_INFO, "Found Decklink mode %d x %d with rate %.2f%s\n",                bmd_width, bmd_height, 1/av_q2d(mode_tb),                (ctx->bmd_field_dominance==bmdLowerFieldFirst || ctx->bmd_field_dominance==bmdUpperFieldFirst)?"(i)":"");        }         mode->Release();        i++;    }     itermode->Release();     if (ctx->bmd_mode == bmdModeUnknown)        return -1; #if BLACKMAGIC_DECKLINK_API_VERSION >= 0x0b050000    if (direction == DIRECTION_IN) {        BMDDisplayMode actualMode = ctx->bmd_mode;        if (ctx->dli->DoesSupportVideoMode(ctx->video_input, ctx->bmd_mode, ctx->raw_format,                                           bmdNoVideoInputConversion, bmdSupportedVideoModeDefault,                                           &actualMode, &support) != S_OK || !support || ctx->bmd_mode != actualMode)            return -1;    } else {        BMDDisplayMode actualMode = ctx->bmd_mode;        if (ctx->dlo->DoesSupportVideoMode(bmdVideoConnectionUnspecified, ctx->bmd_mode, ctx->raw_format,                                           bmdNoVideoOutputConversion, bmdSupportedVideoModeDefault,                                           &actualMode, &support) != S_OK || !support || ctx->bmd_mode != actualMode)            return -1;    }    return 0;#elif BLACKMAGIC_DECKLINK_API_VERSION >= 0x0b000000    if (direction == DIRECTION_IN) {        if (ctx->dli->DoesSupportVideoMode(ctx->video_input, ctx->bmd_mode, ctx->raw_format,                                           bmdSupportedVideoModeDefault,                                           &support) != S_OK)            return -1;    } else {        BMDDisplayMode actualMode = ctx->bmd_mode;        if (ctx->dlo->DoesSupportVideoMode(bmdVideoConnectionUnspecified, ctx->bmd_mode, ctx->raw_format,                                           bmdSupportedVideoModeDefault,                                           &actualMode, &support) != S_OK || !support || ctx->bmd_mode != actualMode) {            return -1;        }     }    if (support)        return 0;#else    if (direction == DIRECTION_IN) {        if (ctx->dli->DoesSupportVideoMode(ctx->bmd_mode, ctx->raw_format,                                           bmdVideoOutputFlagDefault,                                           &support, NULL) != S_OK)            return -1;    } else {        if (!ctx->supports_vanc || ctx->dlo->DoesSupportVideoMode(ctx->bmd_mode, ctx->raw_format,                                                                  bmdVideoOutputVANC,                                                                  &support, NULL) != S_OK || support != bmdDisplayModeSupported) {            /* Try without VANC enabled */            if (ctx->dlo->DoesSupportVideoMode(ctx->bmd_mode, ctx->raw_format,                                               bmdVideoOutputFlagDefault,                                               &support, NULL) != S_OK) {                return -1;            }            ctx->supports_vanc = 0;        }     }    if (support == bmdDisplayModeSupported)        return 0;#endif     return -1;} int ff_decklink_set_format(AVFormatContext *avctx, decklink_direction_t direction) {    return ff_decklink_set_format(avctx, 0, 0, 0, 0, AV_FIELD_UNKNOWN, direction);} void ff_decklink_packet_queue_init(AVFormatContext *avctx, DecklinkPacketQueue *q, int64_t queue_size){    memset(q, 0, sizeof(DecklinkPacketQueue));    pthread_mutex_init(&q->mutex, NULL);    pthread_cond_init(&q->cond, NULL);    q->avctx = avctx;    q->max_q_size = queue_size;} void ff_decklink_packet_queue_flush(DecklinkPacketQueue *q){    AVPacket pkt;     pthread_mutex_lock(&q->mutex);    while (avpriv_packet_list_get(&q->pkt_list, &pkt) == 0) {        av_packet_unref(&pkt);    }    q->nb_packets = 0;    q->size       = 0;    pthread_mutex_unlock(&q->mutex);} void ff_decklink_packet_queue_end(DecklinkPacketQueue *q){    ff_decklink_packet_queue_flush(q);    pthread_mutex_destroy(&q->mutex);    pthread_cond_destroy(&q->cond);} unsigned long long ff_decklink_packet_queue_size(DecklinkPacketQueue *q){    unsigned long long size;    pthread_mutex_lock(&q->mutex);    size = q->size;    pthread_mutex_unlock(&q->mutex);    return size;} int ff_decklink_packet_queue_put(DecklinkPacketQueue *q, AVPacket *pkt){    int pkt_size = pkt->size;    int ret;     // Drop Packet if queue size is > maximum queue size    if (ff_decklink_packet_queue_size(q) > (uint64_t)q->max_q_size) {        av_packet_unref(pkt);        av_log(q->avctx, AV_LOG_WARNING,  "Decklink input buffer overrun!\n");        return -1;    }    /* ensure the packet is reference counted */    if (av_packet_make_refcounted(pkt) < 0) {        av_packet_unref(pkt);        return -1;    }     pthread_mutex_lock(&q->mutex);     ret = avpriv_packet_list_put(&q->pkt_list, pkt, NULL, 0);    if (ret == 0) {        q->nb_packets++;        q->size += pkt_size + sizeof(AVPacket);        pthread_cond_signal(&q->cond);    } else {        av_packet_unref(pkt);    }     pthread_mutex_unlock(&q->mutex);    return ret;} int ff_decklink_packet_queue_get(DecklinkPacketQueue *q, AVPacket *pkt, int block){    int ret;     pthread_mutex_lock(&q->mutex);     for (;; ) {        ret = avpriv_packet_list_get(&q->pkt_list, pkt);        if (ret == 0) {            q->nb_packets--;            q->size -= pkt->size + sizeof(AVPacket);            ret = 1;            break;        } else if (!block) {            ret = 0;            break;        } else {            pthread_cond_wait(&q->cond, &q->mutex);        }    }    pthread_mutex_unlock(&q->mutex);    return ret;} int64_t ff_decklink_packet_queue_peekpts(DecklinkPacketQueue *q){    PacketListEntry *pkt1;    int64_t pts = -1;     pthread_mutex_lock(&q->mutex);    pkt1 = q->pkt_list.head;    if (pkt1) {        pts = pkt1->pkt.pts;    }    pthread_mutex_unlock(&q->mutex);     return pts;}

Lines 1–500 of 706. Load more