mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
1454 lines
50 KiB
C++
1454 lines
50 KiB
C++
/*
|
|
* Blackmagic DeckLink input
|
|
* Copyright (c) 2013-2014 Luca Barbato, Deti Fliegl
|
|
* Copyright (c) 2014 Rafaël Carré
|
|
* Copyright (c) 2017 Akamai Technologies, Inc.
|
|
*
|
|
* 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 <atomic>
|
|
#include <vector>
|
|
using std::atomic;
|
|
|
|
/* 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>
|
|
|
|
extern "C" {
|
|
#include "config.h"
|
|
#include "libavcodec/packet_internal.h"
|
|
#include "libavformat/avformat.h"
|
|
#include "libavutil/avassert.h"
|
|
#include "libavutil/avutil.h"
|
|
#include "libavutil/common.h"
|
|
#include "libavutil/internal.h"
|
|
#include "libavutil/imgutils.h"
|
|
#include "libavutil/intreadwrite.h"
|
|
#include "libavutil/time.h"
|
|
#include "libavutil/timecode.h"
|
|
#include "libavutil/mathematics.h"
|
|
#include "libavutil/reverse.h"
|
|
#include "avdevice.h"
|
|
#if CONFIG_LIBZVBI
|
|
#include <libzvbi.h>
|
|
#endif
|
|
}
|
|
|
|
#include "decklink_common.h"
|
|
#include "decklink_dec.h"
|
|
|
|
#define MAX_WIDTH_VANC 1920
|
|
const BMDDisplayMode AUTODETECT_DEFAULT_MODE = bmdModeNTSC;
|
|
|
|
typedef struct VANCLineNumber {
|
|
BMDDisplayMode mode;
|
|
int vanc_start;
|
|
int field0_vanc_end;
|
|
int field1_vanc_start;
|
|
int vanc_end;
|
|
} VANCLineNumber;
|
|
|
|
/* These VANC line numbers need not be very accurate. In any case
|
|
* GetBufferForVerticalBlankingLine() will return an error when invalid
|
|
* ancillary line number was requested. We just need to make sure that the
|
|
* entire VANC region is covered, while making sure we don't decode VANC of
|
|
* another source during switching*/
|
|
static VANCLineNumber vanc_line_numbers[] = {
|
|
/* SD Modes */
|
|
|
|
{bmdModeNTSC, 11, 19, 274, 282},
|
|
{bmdModeNTSC2398, 11, 19, 274, 282},
|
|
{bmdModePAL, 7, 22, 320, 335},
|
|
{bmdModeNTSCp, 11, -1, -1, 39},
|
|
{bmdModePALp, 7, -1, -1, 45},
|
|
|
|
/* HD 1080 Modes */
|
|
|
|
{bmdModeHD1080p2398, 8, -1, -1, 42},
|
|
{bmdModeHD1080p24, 8, -1, -1, 42},
|
|
{bmdModeHD1080p25, 8, -1, -1, 42},
|
|
{bmdModeHD1080p2997, 8, -1, -1, 42},
|
|
{bmdModeHD1080p30, 8, -1, -1, 42},
|
|
{bmdModeHD1080i50, 8, 20, 570, 585},
|
|
{bmdModeHD1080i5994, 8, 20, 570, 585},
|
|
{bmdModeHD1080i6000, 8, 20, 570, 585},
|
|
{bmdModeHD1080p50, 8, -1, -1, 42},
|
|
{bmdModeHD1080p5994, 8, -1, -1, 42},
|
|
{bmdModeHD1080p6000, 8, -1, -1, 42},
|
|
|
|
/* HD 720 Modes */
|
|
|
|
{bmdModeHD720p50, 8, -1, -1, 26},
|
|
{bmdModeHD720p5994, 8, -1, -1, 26},
|
|
{bmdModeHD720p60, 8, -1, -1, 26},
|
|
|
|
/* For all other modes, for which we don't support VANC */
|
|
{bmdModeUnknown, 0, -1, -1, -1}
|
|
};
|
|
|
|
class decklink_allocator : public IDeckLinkMemoryAllocator
|
|
{
|
|
public:
|
|
decklink_allocator(): _refs(1) { }
|
|
virtual ~decklink_allocator() { }
|
|
|
|
// IDeckLinkMemoryAllocator methods
|
|
virtual HRESULT STDMETHODCALLTYPE AllocateBuffer(unsigned int bufferSize, void* *allocatedBuffer)
|
|
{
|
|
void *buf = av_malloc(bufferSize + AV_INPUT_BUFFER_PADDING_SIZE);
|
|
if (!buf)
|
|
return E_OUTOFMEMORY;
|
|
*allocatedBuffer = buf;
|
|
return S_OK;
|
|
}
|
|
virtual HRESULT STDMETHODCALLTYPE ReleaseBuffer(void* buffer)
|
|
{
|
|
av_free(buffer);
|
|
return S_OK;
|
|
}
|
|
virtual HRESULT STDMETHODCALLTYPE Commit() { return S_OK; }
|
|
virtual HRESULT STDMETHODCALLTYPE Decommit() { return S_OK; }
|
|
|
|
// IUnknown methods
|
|
virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, LPVOID *ppv) { return E_NOINTERFACE; }
|
|
virtual ULONG STDMETHODCALLTYPE AddRef(void) { return ++_refs; }
|
|
virtual ULONG STDMETHODCALLTYPE Release(void)
|
|
{
|
|
int ret = --_refs;
|
|
if (!ret)
|
|
delete this;
|
|
return ret;
|
|
}
|
|
|
|
private:
|
|
std::atomic<int> _refs;
|
|
};
|
|
|
|
extern "C" {
|
|
static void decklink_object_free(void *opaque, uint8_t *data)
|
|
{
|
|
IUnknown *obj = (class IUnknown *)opaque;
|
|
obj->Release();
|
|
}
|
|
}
|
|
|
|
static int get_vanc_line_idx(BMDDisplayMode mode)
|
|
{
|
|
unsigned int i;
|
|
for (i = 0; i < FF_ARRAY_ELEMS(vanc_line_numbers); i++) {
|
|
if (mode == vanc_line_numbers[i].mode)
|
|
return i;
|
|
}
|
|
/* Return the VANC idx for Unknown mode */
|
|
return i - 1;
|
|
}
|
|
|
|
static inline void clear_parity_bits(uint16_t *buf, int len) {
|
|
int i;
|
|
for (i = 0; i < len; i++)
|
|
buf[i] &= 0xff;
|
|
}
|
|
|
|
static int check_vanc_parity_checksum(uint16_t *buf, int len, uint16_t checksum) {
|
|
int i;
|
|
uint16_t vanc_sum = 0;
|
|
for (i = 3; i < len - 1; i++) {
|
|
uint16_t v = buf[i];
|
|
int np = v >> 8;
|
|
int p = av_parity(v & 0xff);
|
|
if ((!!p ^ !!(v & 0x100)) || (np != 1 && np != 2)) {
|
|
// Parity check failed
|
|
return -1;
|
|
}
|
|
vanc_sum += v;
|
|
}
|
|
vanc_sum &= 0x1ff;
|
|
vanc_sum |= ((~vanc_sum & 0x100) << 1);
|
|
if (checksum != vanc_sum) {
|
|
// Checksum verification failed
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* The 10-bit VANC data is packed in V210, we only need the luma component. */
|
|
static void extract_luma_from_v210(uint16_t *dst, const uint8_t *src, int width)
|
|
{
|
|
int i;
|
|
for (i = 0; i < width / 3; i++) {
|
|
*dst++ = (src[1] >> 2) + ((src[2] & 15) << 6);
|
|
*dst++ = src[4] + ((src[5] & 3) << 8);
|
|
*dst++ = (src[6] >> 4) + ((src[7] & 63) << 4);
|
|
src += 8;
|
|
}
|
|
}
|
|
|
|
static void unpack_v210(uint16_t *dst, const uint8_t *src, int width)
|
|
{
|
|
int i;
|
|
for (i = 0; i < width * 2 / 3; i++) {
|
|
*dst++ = src[0] + ((src[1] & 3) << 8);
|
|
*dst++ = (src[1] >> 2) + ((src[2] & 15) << 6);
|
|
*dst++ = (src[2] >> 4) + ((src[3] & 63) << 4);
|
|
src += 4;
|
|
}
|
|
}
|
|
|
|
static uint8_t calc_parity_and_line_offset(int line)
|
|
{
|
|
uint8_t ret = (line < 313) << 5;
|
|
if (line >= 7 && line <= 22)
|
|
ret += line;
|
|
if (line >= 320 && line <= 335)
|
|
ret += (line - 313);
|
|
return ret;
|
|
}
|
|
|
|
static void fill_data_unit_head(int line, uint8_t *tgt)
|
|
{
|
|
tgt[0] = 0x02; // data_unit_id
|
|
tgt[1] = 0x2c; // data_unit_length
|
|
tgt[2] = calc_parity_and_line_offset(line); // field_parity, line_offset
|
|
tgt[3] = 0xe4; // framing code
|
|
}
|
|
|
|
#if CONFIG_LIBZVBI
|
|
static uint8_t* teletext_data_unit_from_vbi_data(int line, uint8_t *src, uint8_t *tgt, vbi_pixfmt fmt)
|
|
{
|
|
vbi_bit_slicer slicer;
|
|
|
|
vbi_bit_slicer_init(&slicer, 720, 13500000, 6937500, 6937500, 0x00aaaae4, 0xffff, 18, 6, 42 * 8, VBI_MODULATION_NRZ_MSB, fmt);
|
|
|
|
if (vbi_bit_slice(&slicer, src, tgt + 4) == FALSE)
|
|
return tgt;
|
|
|
|
fill_data_unit_head(line, tgt);
|
|
|
|
return tgt + 46;
|
|
}
|
|
|
|
static uint8_t* teletext_data_unit_from_vbi_data_10bit(int line, uint8_t *src, uint8_t *tgt)
|
|
{
|
|
uint8_t y[720];
|
|
uint8_t *py = y;
|
|
uint8_t *pend = y + 720;
|
|
/* The 10-bit VBI data is packed in V210, but libzvbi only supports 8-bit,
|
|
* so we extract the 8 MSBs of the luma component, that is enough for
|
|
* teletext bit slicing. */
|
|
while (py < pend) {
|
|
*py++ = (src[1] >> 4) + ((src[2] & 15) << 4);
|
|
*py++ = (src[4] >> 2) + ((src[5] & 3 ) << 6);
|
|
*py++ = (src[6] >> 6) + ((src[7] & 63) << 2);
|
|
src += 8;
|
|
}
|
|
return teletext_data_unit_from_vbi_data(line, y, tgt, VBI_PIXFMT_YUV420);
|
|
}
|
|
#endif
|
|
|
|
static uint8_t* teletext_data_unit_from_op47_vbi_packet(int line, uint16_t *py, uint8_t *tgt)
|
|
{
|
|
int i;
|
|
|
|
if (py[0] != 0x255 || py[1] != 0x255 || py[2] != 0x227)
|
|
return tgt;
|
|
|
|
fill_data_unit_head(line, tgt);
|
|
|
|
py += 3;
|
|
tgt += 4;
|
|
|
|
for (i = 0; i < 42; i++)
|
|
*tgt++ = ff_reverse[py[i] & 255];
|
|
|
|
return tgt;
|
|
}
|
|
|
|
static int linemask_matches(int line, int64_t mask)
|
|
{
|
|
int shift = -1;
|
|
if (line >= 6 && line <= 22)
|
|
shift = line - 6;
|
|
if (line >= 318 && line <= 335)
|
|
shift = line - 318 + 17;
|
|
return shift >= 0 && ((1ULL << shift) & mask);
|
|
}
|
|
|
|
static uint8_t* teletext_data_unit_from_op47_data(uint16_t *py, uint16_t *pend, uint8_t *tgt, int64_t wanted_lines)
|
|
{
|
|
if (py < pend - 9) {
|
|
if (py[0] == 0x151 && py[1] == 0x115 && py[3] == 0x102) { // identifier, identifier, format code for WST teletext
|
|
uint16_t *descriptors = py + 4;
|
|
int i;
|
|
py += 9;
|
|
for (i = 0; i < 5 && py < pend - 45; i++, py += 45) {
|
|
int line = (descriptors[i] & 31) + (!(descriptors[i] & 128)) * 313;
|
|
if (line && linemask_matches(line, wanted_lines))
|
|
tgt = teletext_data_unit_from_op47_vbi_packet(line, py, tgt);
|
|
}
|
|
}
|
|
}
|
|
return tgt;
|
|
}
|
|
|
|
static uint8_t* teletext_data_unit_from_ancillary_packet(uint16_t *py, uint16_t *pend, uint8_t *tgt, int64_t wanted_lines, int allow_multipacket)
|
|
{
|
|
uint16_t did = py[0]; // data id
|
|
uint16_t sdid = py[1]; // secondary data id
|
|
uint16_t dc = py[2] & 255; // data count
|
|
py += 3;
|
|
pend = FFMIN(pend, py + dc);
|
|
if (did == 0x143 && sdid == 0x102) { // subtitle distribution packet
|
|
tgt = teletext_data_unit_from_op47_data(py, pend, tgt, wanted_lines);
|
|
} else if (allow_multipacket && did == 0x143 && sdid == 0x203) { // VANC multipacket
|
|
py += 2; // priority, line/field
|
|
while (py < pend - 3) {
|
|
tgt = teletext_data_unit_from_ancillary_packet(py, pend, tgt, wanted_lines, 0);
|
|
py += 4 + (py[2] & 255); // ndid, nsdid, ndc, line/field
|
|
}
|
|
}
|
|
return tgt;
|
|
}
|
|
|
|
static uint8_t *vanc_to_cc(AVFormatContext *avctx, uint16_t *buf, size_t words,
|
|
unsigned &cc_count)
|
|
{
|
|
size_t i, len = (buf[5] & 0xff) + 6 + 1;
|
|
uint8_t cdp_sum, rate;
|
|
uint16_t hdr, ftr;
|
|
uint8_t *cc;
|
|
uint16_t *cdp = &buf[6]; // CDP follows
|
|
if (cdp[0] != 0x96 || cdp[1] != 0x69) {
|
|
av_log(avctx, AV_LOG_WARNING, "Invalid CDP header 0x%.2x 0x%.2x\n", cdp[0], cdp[1]);
|
|
return NULL;
|
|
}
|
|
|
|
len -= 7; // remove VANC header and checksum
|
|
|
|
if (cdp[2] != len) {
|
|
av_log(avctx, AV_LOG_WARNING, "CDP len %d != %zu\n", cdp[2], len);
|
|
return NULL;
|
|
}
|
|
|
|
cdp_sum = 0;
|
|
for (i = 0; i < len - 1; i++)
|
|
cdp_sum += cdp[i];
|
|
cdp_sum = cdp_sum ? 256 - cdp_sum : 0;
|
|
if (cdp[len - 1] != cdp_sum) {
|
|
av_log(avctx, AV_LOG_WARNING, "CDP checksum invalid 0x%.4x != 0x%.4x\n", cdp_sum, cdp[len-1]);
|
|
return NULL;
|
|
}
|
|
|
|
rate = cdp[3];
|
|
if (!(rate & 0x0f)) {
|
|
av_log(avctx, AV_LOG_WARNING, "CDP frame rate invalid (0x%.2x)\n", rate);
|
|
return NULL;
|
|
}
|
|
rate >>= 4;
|
|
if (rate > 8) {
|
|
av_log(avctx, AV_LOG_WARNING, "CDP frame rate invalid (0x%.2x)\n", rate);
|
|
return NULL;
|
|
}
|
|
|
|
if (!(cdp[4] & 0x43)) /* ccdata_present | caption_service_active | reserved */ {
|
|
av_log(avctx, AV_LOG_WARNING, "CDP flags invalid (0x%.2x)\n", cdp[4]);
|
|
return NULL;
|
|
}
|
|
|
|
hdr = (cdp[5] << 8) | cdp[6];
|
|
if (cdp[7] != 0x72) /* ccdata_id */ {
|
|
av_log(avctx, AV_LOG_WARNING, "Invalid ccdata_id 0x%.2x\n", cdp[7]);
|
|
return NULL;
|
|
}
|
|
|
|
cc_count = cdp[8];
|
|
if (!(cc_count & 0xe0)) {
|
|
av_log(avctx, AV_LOG_WARNING, "Invalid cc_count 0x%.2x\n", cc_count);
|
|
return NULL;
|
|
}
|
|
|
|
cc_count &= 0x1f;
|
|
if ((len - 13) < cc_count * 3) {
|
|
av_log(avctx, AV_LOG_WARNING, "Invalid cc_count %d (> %zu)\n", cc_count * 3, len - 13);
|
|
return NULL;
|
|
}
|
|
|
|
if (cdp[len - 4] != 0x74) /* footer id */ {
|
|
av_log(avctx, AV_LOG_WARNING, "Invalid footer id 0x%.2x\n", cdp[len-4]);
|
|
return NULL;
|
|
}
|
|
|
|
ftr = (cdp[len - 3] << 8) | cdp[len - 2];
|
|
if (ftr != hdr) {
|
|
av_log(avctx, AV_LOG_WARNING, "Header 0x%.4x != Footer 0x%.4x\n", hdr, ftr);
|
|
return NULL;
|
|
}
|
|
|
|
cc = (uint8_t *)av_malloc(cc_count * 3);
|
|
if (cc == NULL) {
|
|
av_log(avctx, AV_LOG_WARNING, "CC - av_malloc failed for cc_count = %d\n", cc_count);
|
|
return NULL;
|
|
}
|
|
|
|
for (size_t i = 0; i < cc_count; i++) {
|
|
cc[3*i + 0] = cdp[9 + 3*i+0] /* & 3 */;
|
|
cc[3*i + 1] = cdp[9 + 3*i+1];
|
|
cc[3*i + 2] = cdp[9 + 3*i+2];
|
|
}
|
|
|
|
cc_count *= 3;
|
|
return cc;
|
|
}
|
|
|
|
static uint8_t *get_metadata(AVFormatContext *avctx, uint16_t *buf, size_t width,
|
|
uint8_t *tgt, size_t tgt_size, AVPacket *pkt)
|
|
{
|
|
decklink_cctx *cctx = (struct decklink_cctx *) avctx->priv_data;
|
|
uint16_t *max_buf = buf + width;
|
|
|
|
while (buf < max_buf - 6) {
|
|
int len;
|
|
uint16_t did = buf[3] & 0xFF; // data id
|
|
uint16_t sdid = buf[4] & 0xFF; // secondary data id
|
|
/* Check for VANC header */
|
|
if (buf[0] != 0 || buf[1] != 0x3ff || buf[2] != 0x3ff) {
|
|
return tgt;
|
|
}
|
|
|
|
len = (buf[5] & 0xff) + 6 + 1;
|
|
if (len > max_buf - buf) {
|
|
av_log(avctx, AV_LOG_WARNING, "Data Count (%d) > data left (%zu)\n",
|
|
len, max_buf - buf);
|
|
return tgt;
|
|
}
|
|
|
|
if (did == 0x43 && (sdid == 0x02 || sdid == 0x03) && cctx->teletext_lines &&
|
|
width == 1920 && tgt_size >= 1920) {
|
|
if (check_vanc_parity_checksum(buf, len, buf[len - 1]) < 0) {
|
|
av_log(avctx, AV_LOG_WARNING, "VANC parity or checksum incorrect\n");
|
|
goto skip_packet;
|
|
}
|
|
tgt = teletext_data_unit_from_ancillary_packet(buf + 3, buf + len, tgt, cctx->teletext_lines, 1);
|
|
} else if (did == 0x61 && sdid == 0x01) {
|
|
unsigned int data_len;
|
|
uint8_t *data;
|
|
if (check_vanc_parity_checksum(buf, len, buf[len - 1]) < 0) {
|
|
av_log(avctx, AV_LOG_WARNING, "VANC parity or checksum incorrect\n");
|
|
goto skip_packet;
|
|
}
|
|
clear_parity_bits(buf, len);
|
|
data = vanc_to_cc(avctx, buf, width, data_len);
|
|
if (data) {
|
|
if (av_packet_add_side_data(pkt, AV_PKT_DATA_A53_CC, data, data_len) < 0)
|
|
av_free(data);
|
|
}
|
|
} else {
|
|
av_log(avctx, AV_LOG_DEBUG, "Unknown meta data DID = 0x%.2x SDID = 0x%.2x\n",
|
|
did, sdid);
|
|
}
|
|
skip_packet:
|
|
buf += len;
|
|
}
|
|
|
|
return tgt;
|
|
}
|
|
|
|
static void avpacket_queue_init(AVFormatContext *avctx, AVPacketQueue *q)
|
|
{
|
|
struct decklink_cctx *ctx = (struct decklink_cctx *)avctx->priv_data;
|
|
memset(q, 0, sizeof(AVPacketQueue));
|
|
pthread_mutex_init(&q->mutex, NULL);
|
|
pthread_cond_init(&q->cond, NULL);
|
|
q->avctx = avctx;
|
|
q->max_q_size = ctx->queue_size;
|
|
}
|
|
|
|
static void avpacket_queue_flush(AVPacketQueue *q)
|
|
{
|
|
PacketListEntry *pkt, *pkt1;
|
|
|
|
pthread_mutex_lock(&q->mutex);
|
|
for (pkt = q->pkt_list.head; pkt != NULL; pkt = pkt1) {
|
|
pkt1 = pkt->next;
|
|
av_packet_unref(&pkt->pkt);
|
|
av_freep(&pkt);
|
|
}
|
|
q->pkt_list.head = NULL;
|
|
q->pkt_list.tail = 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)
|
|
{
|
|
PacketListEntry *pkt1;
|
|
|
|
// Drop Packet if queue size is > maximum queue size
|
|
if (avpacket_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;
|
|
}
|
|
|
|
pkt1 = (PacketListEntry *)av_malloc(sizeof(*pkt1));
|
|
if (!pkt1) {
|
|
av_packet_unref(pkt);
|
|
return -1;
|
|
}
|
|
av_packet_move_ref(&pkt1->pkt, pkt);
|
|
pkt1->next = NULL;
|
|
|
|
pthread_mutex_lock(&q->mutex);
|
|
|
|
if (!q->pkt_list.tail) {
|
|
q->pkt_list.head = pkt1;
|
|
} else {
|
|
q->pkt_list.tail->next = pkt1;
|
|
}
|
|
|
|
q->pkt_list.tail = 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)
|
|
{
|
|
int ret;
|
|
|
|
pthread_mutex_lock(&q->mutex);
|
|
|
|
for (;; ) {
|
|
PacketListEntry *pkt1 = q->pkt_list.head;
|
|
if (pkt1) {
|
|
q->pkt_list.head = pkt1->next;
|
|
if (!q->pkt_list.head) {
|
|
q->pkt_list.tail = 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;
|
|
}
|
|
|
|
static void handle_klv(AVFormatContext *avctx, decklink_ctx *ctx, IDeckLinkVideoInputFrame *videoFrame, int64_t pts)
|
|
{
|
|
const uint8_t KLV_DID = 0x44;
|
|
const uint8_t KLV_IN_VANC_SDID = 0x04;
|
|
|
|
struct KLVPacket
|
|
{
|
|
uint16_t sequence_counter;
|
|
std::vector<uint8_t> data;
|
|
};
|
|
|
|
size_t total_size = 0;
|
|
std::vector<std::vector<KLVPacket>> klv_packets(256);
|
|
|
|
IDeckLinkVideoFrameAncillaryPackets *packets = nullptr;
|
|
if (videoFrame->QueryInterface(IID_IDeckLinkVideoFrameAncillaryPackets, (void**)&packets) != S_OK)
|
|
return;
|
|
|
|
IDeckLinkAncillaryPacketIterator *it = nullptr;
|
|
if (packets->GetPacketIterator(&it) != S_OK) {
|
|
packets->Release();
|
|
return;
|
|
}
|
|
|
|
IDeckLinkAncillaryPacket *packet = nullptr;
|
|
while (it->Next(&packet) == S_OK) {
|
|
uint8_t *data = nullptr;
|
|
uint32_t size = 0;
|
|
|
|
if (packet->GetDID() == KLV_DID && packet->GetSDID() == KLV_IN_VANC_SDID) {
|
|
av_log(avctx, AV_LOG_DEBUG, "Found KLV VANC packet on line: %d\n", packet->GetLineNumber());
|
|
|
|
if (packet->GetBytes(bmdAncillaryPacketFormatUInt8, (const void**) &data, &size) == S_OK) {
|
|
// MID and PSC
|
|
if (size > 3) {
|
|
uint8_t mid = data[0];
|
|
uint16_t psc = data[1] << 8 | data[2];
|
|
|
|
av_log(avctx, AV_LOG_DEBUG, "KLV with MID: %d and PSC: %d\n", mid, psc);
|
|
|
|
auto& list = klv_packets[mid];
|
|
uint16_t expected_psc = list.size() + 1;
|
|
|
|
if (psc == expected_psc) {
|
|
uint32_t data_len = size - 3;
|
|
total_size += data_len;
|
|
|
|
KLVPacket packet{ psc };
|
|
packet.data.resize(data_len);
|
|
memcpy(packet.data.data(), data + 3, data_len);
|
|
|
|
list.push_back(std::move(packet));
|
|
} else {
|
|
av_log(avctx, AV_LOG_WARNING, "Out of order PSC: %d for MID: %d\n", psc, mid);
|
|
|
|
if (!list.empty()) {
|
|
for (auto& klv : list)
|
|
total_size -= klv.data.size();
|
|
|
|
list.clear();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
packet->Release();
|
|
}
|
|
|
|
it->Release();
|
|
packets->Release();
|
|
|
|
if (total_size > 0) {
|
|
std::vector<uint8_t> klv;
|
|
klv.reserve(total_size);
|
|
|
|
for (size_t i = 0; i < klv_packets.size(); ++i) {
|
|
auto& list = klv_packets[i];
|
|
|
|
if (list.empty())
|
|
continue;
|
|
|
|
av_log(avctx, AV_LOG_DEBUG, "Joining MID: %d\n", (int)i);
|
|
|
|
for (auto& packet : list)
|
|
klv.insert(klv.end(), packet.data.begin(), packet.data.end());
|
|
}
|
|
|
|
AVPacket klv_packet = { 0 };
|
|
klv_packet.pts = pts;
|
|
klv_packet.dts = pts;
|
|
klv_packet.flags |= AV_PKT_FLAG_KEY;
|
|
klv_packet.stream_index = ctx->klv_st->index;
|
|
klv_packet.data = klv.data();
|
|
klv_packet.size = klv.size();
|
|
|
|
if (avpacket_queue_put(&ctx->queue, &klv_packet) < 0) {
|
|
++ctx->dropped;
|
|
}
|
|
}
|
|
}
|
|
|
|
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:
|
|
std::atomic<int> _refs;
|
|
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) : _refs(1)
|
|
{
|
|
avctx = _avctx;
|
|
decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data;
|
|
ctx = (struct decklink_ctx *)cctx->ctx;
|
|
no_video = 0;
|
|
initial_audio_pts = initial_video_pts = AV_NOPTS_VALUE;
|
|
}
|
|
|
|
decklink_input_callback::~decklink_input_callback()
|
|
{
|
|
}
|
|
|
|
ULONG decklink_input_callback::AddRef(void)
|
|
{
|
|
return ++_refs;
|
|
}
|
|
|
|
ULONG decklink_input_callback::Release(void)
|
|
{
|
|
int ret = --_refs;
|
|
if (!ret)
|
|
delete this;
|
|
return ret;
|
|
}
|
|
|
|
static int64_t get_pkt_pts(IDeckLinkVideoInputFrame *videoFrame,
|
|
IDeckLinkAudioInputPacket *audioFrame,
|
|
int64_t wallclock,
|
|
int64_t abs_wallclock,
|
|
DecklinkPtsSource pts_src,
|
|
AVRational time_base, int64_t *initial_pts,
|
|
int copyts)
|
|
{
|
|
int64_t pts = AV_NOPTS_VALUE;
|
|
BMDTimeValue bmd_pts;
|
|
BMDTimeValue bmd_duration;
|
|
HRESULT res = E_INVALIDARG;
|
|
switch (pts_src) {
|
|
case PTS_SRC_AUDIO:
|
|
if (audioFrame)
|
|
res = audioFrame->GetPacketTime(&bmd_pts, time_base.den);
|
|
break;
|
|
case PTS_SRC_VIDEO:
|
|
if (videoFrame)
|
|
res = videoFrame->GetStreamTime(&bmd_pts, &bmd_duration, time_base.den);
|
|
break;
|
|
case PTS_SRC_REFERENCE:
|
|
if (videoFrame)
|
|
res = videoFrame->GetHardwareReferenceTimestamp(time_base.den, &bmd_pts, &bmd_duration);
|
|
break;
|
|
case PTS_SRC_WALLCLOCK:
|
|
/* fall through */
|
|
case PTS_SRC_ABS_WALLCLOCK:
|
|
{
|
|
/* MSVC does not support compound literals like AV_TIME_BASE_Q
|
|
* in C++ code (compiler error C4576) */
|
|
AVRational timebase;
|
|
timebase.num = 1;
|
|
timebase.den = AV_TIME_BASE;
|
|
if (pts_src == PTS_SRC_WALLCLOCK)
|
|
pts = av_rescale_q(wallclock, timebase, time_base);
|
|
else
|
|
pts = av_rescale_q(abs_wallclock, timebase, time_base);
|
|
break;
|
|
}
|
|
}
|
|
if (res == S_OK)
|
|
pts = bmd_pts / time_base.num;
|
|
|
|
if (!copyts) {
|
|
if (pts != AV_NOPTS_VALUE && *initial_pts == AV_NOPTS_VALUE)
|
|
*initial_pts = pts;
|
|
if (*initial_pts != AV_NOPTS_VALUE)
|
|
pts -= *initial_pts;
|
|
}
|
|
|
|
return pts;
|
|
}
|
|
|
|
static int get_bmd_timecode(AVFormatContext *avctx, AVTimecode *tc, AVRational frame_rate, BMDTimecodeFormat tc_format, IDeckLinkVideoInputFrame *videoFrame)
|
|
{
|
|
IDeckLinkTimecode *timecode;
|
|
int ret = AVERROR(ENOENT);
|
|
#if BLACKMAGIC_DECKLINK_API_VERSION >= 0x0b000000
|
|
int hfr = (tc_format == bmdTimecodeRP188HighFrameRate);
|
|
#else
|
|
int hfr = 0;
|
|
#endif
|
|
if (videoFrame->GetTimecode(tc_format, &timecode) == S_OK) {
|
|
uint8_t hh, mm, ss, ff;
|
|
if (timecode->GetComponents(&hh, &mm, &ss, &ff) == S_OK) {
|
|
int flags = (timecode->GetFlags() & bmdTimecodeIsDropFrame) ? AV_TIMECODE_FLAG_DROPFRAME : 0;
|
|
if (!hfr && av_cmp_q(frame_rate, av_make_q(30, 1)) == 1)
|
|
ff = ff << 1 | !!(timecode->GetFlags() & bmdTimecodeFieldMark);
|
|
ret = av_timecode_init_from_components(tc, frame_rate, flags, hh, mm, ss, ff, avctx);
|
|
}
|
|
timecode->Release();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int get_frame_timecode(AVFormatContext *avctx, decklink_ctx *ctx, AVTimecode *tc, IDeckLinkVideoInputFrame *videoFrame)
|
|
{
|
|
AVRational frame_rate = ctx->video_st->r_frame_rate;
|
|
int ret;
|
|
/* 50/60 fps content has alternating VITC1 and VITC2 timecode (see SMPTE ST
|
|
* 12-2, section 7), so the native ordering of RP188Any (HFR, VITC1, LTC,
|
|
* VITC2) would not work because LTC might not contain the field flag.
|
|
* Therefore we query the types manually. */
|
|
if (ctx->tc_format == bmdTimecodeRP188Any && av_cmp_q(frame_rate, av_make_q(30, 1)) == 1) {
|
|
#if BLACKMAGIC_DECKLINK_API_VERSION >= 0x0b000000
|
|
ret = get_bmd_timecode(avctx, tc, frame_rate, bmdTimecodeRP188HighFrameRate, videoFrame);
|
|
if (ret == AVERROR(ENOENT))
|
|
#endif
|
|
ret = get_bmd_timecode(avctx, tc, frame_rate, bmdTimecodeRP188VITC1, videoFrame);
|
|
if (ret == AVERROR(ENOENT))
|
|
ret = get_bmd_timecode(avctx, tc, frame_rate, bmdTimecodeRP188VITC2, videoFrame);
|
|
if (ret == AVERROR(ENOENT))
|
|
ret = get_bmd_timecode(avctx, tc, frame_rate, bmdTimecodeRP188LTC, videoFrame);
|
|
} else {
|
|
ret = get_bmd_timecode(avctx, tc, frame_rate, ctx->tc_format, videoFrame);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
HRESULT decklink_input_callback::VideoInputFrameArrived(
|
|
IDeckLinkVideoInputFrame *videoFrame, IDeckLinkAudioInputPacket *audioFrame)
|
|
{
|
|
void *frameBytes;
|
|
void *audioFrameBytes;
|
|
BMDTimeValue frameTime;
|
|
BMDTimeValue frameDuration;
|
|
int64_t wallclock = 0, abs_wallclock = 0;
|
|
struct decklink_cctx *cctx = (struct decklink_cctx *) avctx->priv_data;
|
|
|
|
if (ctx->autodetect) {
|
|
if (videoFrame && !(videoFrame->GetFlags() & bmdFrameHasNoInputSource) &&
|
|
ctx->bmd_mode == bmdModeUnknown)
|
|
{
|
|
ctx->bmd_mode = AUTODETECT_DEFAULT_MODE;
|
|
}
|
|
return S_OK;
|
|
}
|
|
|
|
// Drop the frames till system's timestamp aligns with the configured value.
|
|
if (0 == ctx->frameCount && cctx->timestamp_align) {
|
|
AVRational remainder = av_make_q(av_gettime() % cctx->timestamp_align, 1000000);
|
|
AVRational frame_duration = av_inv_q(ctx->video_st->r_frame_rate);
|
|
if (av_cmp_q(remainder, frame_duration) > 0) {
|
|
++ctx->dropped;
|
|
return S_OK;
|
|
}
|
|
}
|
|
|
|
ctx->frameCount++;
|
|
if (ctx->audio_pts_source == PTS_SRC_WALLCLOCK || ctx->video_pts_source == PTS_SRC_WALLCLOCK)
|
|
wallclock = av_gettime_relative();
|
|
if (ctx->audio_pts_source == PTS_SRC_ABS_WALLCLOCK || ctx->video_pts_source == PTS_SRC_ABS_WALLCLOCK)
|
|
abs_wallclock = av_gettime();
|
|
|
|
// Handle Video Frame
|
|
if (videoFrame) {
|
|
AVPacket pkt = { 0 };
|
|
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) {
|
|
if (ctx->draw_bars && videoFrame->GetPixelFormat() == bmdFormat8BitYUV) {
|
|
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;
|
|
|
|
// Handle Timecode (if requested)
|
|
if (ctx->tc_format) {
|
|
AVTimecode tcr;
|
|
if (get_frame_timecode(avctx, ctx, &tcr, videoFrame) >= 0) {
|
|
char tcstr[AV_TIMECODE_STR_SIZE];
|
|
const char *tc = av_timecode_make_string(&tcr, tcstr, 0);
|
|
if (tc) {
|
|
AVDictionary* metadata_dict = NULL;
|
|
uint8_t* packed_metadata;
|
|
|
|
if (av_cmp_q(ctx->video_st->r_frame_rate, av_make_q(60, 1)) < 1) {
|
|
uint32_t tc_data = av_timecode_get_smpte_from_framenum(&tcr, 0);
|
|
int size = sizeof(uint32_t) * 4;
|
|
uint32_t *sd = (uint32_t *)av_packet_new_side_data(&pkt, AV_PKT_DATA_S12M_TIMECODE, size);
|
|
|
|
if (sd) {
|
|
*sd = 1; // one TC
|
|
*(sd + 1) = tc_data; // TC
|
|
}
|
|
}
|
|
|
|
if (av_dict_set(&metadata_dict, "timecode", tc, 0) >= 0) {
|
|
size_t metadata_len;
|
|
packed_metadata = av_packet_pack_dictionary(metadata_dict, &metadata_len);
|
|
av_dict_free(&metadata_dict);
|
|
if (packed_metadata) {
|
|
if (av_packet_add_side_data(&pkt, AV_PKT_DATA_STRINGS_METADATA, packed_metadata, metadata_len) < 0)
|
|
av_freep(&packed_metadata);
|
|
else if (!ctx->tc_seen)
|
|
ctx->tc_seen = ctx->frameCount;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
av_log(avctx, AV_LOG_DEBUG, "Unable to find timecode.\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ctx->tc_format && cctx->wait_for_tc && !ctx->tc_seen) {
|
|
|
|
av_log(avctx, AV_LOG_WARNING, "No TC detected yet. wait_for_tc set. Dropping. \n");
|
|
av_log(avctx, AV_LOG_WARNING, "Frame received (#%lu) - "
|
|
"- Frames dropped %u\n", ctx->frameCount, ++ctx->dropped);
|
|
return S_OK;
|
|
}
|
|
|
|
pkt.pts = get_pkt_pts(videoFrame, audioFrame, wallclock, abs_wallclock, ctx->video_pts_source, ctx->video_st->time_base, &initial_video_pts, cctx->copyts);
|
|
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);
|
|
|
|
if (!no_video) {
|
|
IDeckLinkVideoFrameAncillary *vanc;
|
|
AVPacket txt_pkt = { 0 };
|
|
uint8_t txt_buf0[3531]; // 35 * 46 bytes decoded teletext lines + 1 byte data_identifier + 1920 bytes OP47 decode buffer
|
|
uint8_t *txt_buf = txt_buf0;
|
|
|
|
if (ctx->enable_klv) {
|
|
handle_klv(avctx, ctx, videoFrame, pkt.pts);
|
|
}
|
|
|
|
if (videoFrame->GetAncillaryData(&vanc) == S_OK) {
|
|
int i;
|
|
BMDPixelFormat vanc_format = vanc->GetPixelFormat();
|
|
txt_buf[0] = 0x10; // data_identifier - EBU_data
|
|
txt_buf++;
|
|
#if CONFIG_LIBZVBI
|
|
if (ctx->bmd_mode == bmdModePAL && ctx->teletext_lines &&
|
|
(vanc_format == bmdFormat8BitYUV || vanc_format == bmdFormat10BitYUV)) {
|
|
int64_t line_mask = 1;
|
|
av_assert0(videoFrame->GetWidth() == 720);
|
|
for (i = 6; i < 336; i++, line_mask <<= 1) {
|
|
uint8_t *buf;
|
|
if ((ctx->teletext_lines & line_mask) && vanc->GetBufferForVerticalBlankingLine(i, (void**)&buf) == S_OK) {
|
|
if (vanc_format == bmdFormat8BitYUV)
|
|
txt_buf = teletext_data_unit_from_vbi_data(i, buf, txt_buf, VBI_PIXFMT_UYVY);
|
|
else
|
|
txt_buf = teletext_data_unit_from_vbi_data_10bit(i, buf, txt_buf);
|
|
}
|
|
if (i == 22)
|
|
i = 317;
|
|
}
|
|
}
|
|
#endif
|
|
if (vanc_format == bmdFormat10BitYUV && videoFrame->GetWidth() <= MAX_WIDTH_VANC) {
|
|
int idx = get_vanc_line_idx(ctx->bmd_mode);
|
|
for (i = vanc_line_numbers[idx].vanc_start; i <= vanc_line_numbers[idx].vanc_end; i++) {
|
|
uint8_t *buf;
|
|
if (vanc->GetBufferForVerticalBlankingLine(i, (void**)&buf) == S_OK) {
|
|
uint16_t vanc[MAX_WIDTH_VANC];
|
|
size_t vanc_size = videoFrame->GetWidth();
|
|
if (ctx->bmd_mode == bmdModeNTSC && videoFrame->GetWidth() * 2 <= MAX_WIDTH_VANC) {
|
|
vanc_size = vanc_size * 2;
|
|
unpack_v210(vanc, buf, videoFrame->GetWidth());
|
|
} else {
|
|
extract_luma_from_v210(vanc, buf, videoFrame->GetWidth());
|
|
}
|
|
txt_buf = get_metadata(avctx, vanc, vanc_size,
|
|
txt_buf, sizeof(txt_buf0) - (txt_buf - txt_buf0), &pkt);
|
|
}
|
|
if (i == vanc_line_numbers[idx].field0_vanc_end)
|
|
i = vanc_line_numbers[idx].field1_vanc_start - 1;
|
|
}
|
|
}
|
|
vanc->Release();
|
|
if (txt_buf - txt_buf0 > 1) {
|
|
int stuffing_units = (4 - ((45 + txt_buf - txt_buf0) / 46) % 4) % 4;
|
|
while (stuffing_units--) {
|
|
memset(txt_buf, 0xff, 46);
|
|
txt_buf[1] = 0x2c; // data_unit_length
|
|
txt_buf += 46;
|
|
}
|
|
txt_pkt.pts = pkt.pts;
|
|
txt_pkt.dts = pkt.dts;
|
|
txt_pkt.stream_index = ctx->teletext_st->index;
|
|
txt_pkt.data = txt_buf0;
|
|
txt_pkt.size = txt_buf - txt_buf0;
|
|
if (avpacket_queue_put(&ctx->queue, &txt_pkt) < 0) {
|
|
++ctx->dropped;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
pkt.buf = av_buffer_create(pkt.data, pkt.size, decklink_object_free, videoFrame, 0);
|
|
if (pkt.buf)
|
|
videoFrame->AddRef();
|
|
|
|
if (avpacket_queue_put(&ctx->queue, &pkt) < 0) {
|
|
++ctx->dropped;
|
|
}
|
|
}
|
|
|
|
// Handle Audio Frame
|
|
if (audioFrame) {
|
|
AVPacket pkt = { 0 };
|
|
BMDTimeValue audio_pts;
|
|
|
|
//hack among hacks
|
|
pkt.size = audioFrame->GetSampleFrameCount() * ctx->audio_st->codecpar->ch_layout.nb_channels * (ctx->audio_depth / 8);
|
|
audioFrame->GetBytes(&audioFrameBytes);
|
|
audioFrame->GetPacketTime(&audio_pts, ctx->audio_st->time_base.den);
|
|
pkt.pts = get_pkt_pts(videoFrame, audioFrame, wallclock, abs_wallclock, ctx->audio_pts_source, ctx->audio_st->time_base, &initial_audio_pts, cctx->copyts);
|
|
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;
|
|
|
|
if (avpacket_queue_put(&ctx->queue, &pkt) < 0) {
|
|
++ctx->dropped;
|
|
}
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT decklink_input_callback::VideoInputFormatChanged(
|
|
BMDVideoInputFormatChangedEvents events, IDeckLinkDisplayMode *mode,
|
|
BMDDetectedVideoInputFormatFlags formatFlags)
|
|
{
|
|
struct decklink_cctx *cctx = (struct decklink_cctx *) avctx->priv_data;
|
|
ctx->bmd_mode = mode->GetDisplayMode();
|
|
// check the C context member to make sure we set both raw_format and bmd_mode with data from the same format change callback
|
|
if (!cctx->raw_format)
|
|
ctx->raw_format = (formatFlags & bmdDetectedVideoInputRGB444) ? bmdFormat8BitARGB : bmdFormat8BitYUV;
|
|
return S_OK;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
// 3 second timeout
|
|
for (i = 0; i < 30; 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;
|
|
}
|
|
|
|
}
|
|
|
|
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->dli) {
|
|
ctx->dli->StopStreams();
|
|
ctx->dli->DisableVideoInput();
|
|
ctx->dli->DisableAudioInput();
|
|
}
|
|
|
|
ff_decklink_cleanup(avctx);
|
|
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;
|
|
class decklink_allocator *allocator;
|
|
class decklink_input_callback *input_callback;
|
|
AVStream *st;
|
|
HRESULT result;
|
|
int ret;
|
|
|
|
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->enable_klv = cctx->enable_klv;
|
|
ctx->teletext_lines = cctx->teletext_lines;
|
|
ctx->preroll = cctx->preroll;
|
|
ctx->duplex_mode = cctx->duplex_mode;
|
|
if (cctx->tc_format > 0 && (unsigned int)cctx->tc_format < FF_ARRAY_ELEMS(decklink_timecode_format_map))
|
|
ctx->tc_format = decklink_timecode_format_map[cctx->tc_format];
|
|
if (cctx->video_input > 0 && (unsigned int)cctx->video_input < FF_ARRAY_ELEMS(decklink_video_connection_map))
|
|
ctx->video_input = decklink_video_connection_map[cctx->video_input];
|
|
if (cctx->audio_input > 0 && (unsigned int)cctx->audio_input < FF_ARRAY_ELEMS(decklink_audio_connection_map))
|
|
ctx->audio_input = decklink_audio_connection_map[cctx->audio_input];
|
|
ctx->audio_pts_source = cctx->audio_pts_source;
|
|
ctx->video_pts_source = cctx->video_pts_source;
|
|
ctx->draw_bars = cctx->draw_bars;
|
|
ctx->audio_depth = cctx->audio_depth;
|
|
if (cctx->raw_format > 0 && (unsigned int)cctx->raw_format < FF_ARRAY_ELEMS(decklink_raw_format_map))
|
|
ctx->raw_format = decklink_raw_format_map[cctx->raw_format];
|
|
cctx->ctx = ctx;
|
|
|
|
/* Check audio channel option for valid values: 2, 8 or 16 */
|
|
switch (cctx->audio_channels) {
|
|
case 2:
|
|
case 8:
|
|
case 16:
|
|
break;
|
|
default:
|
|
av_log(avctx, AV_LOG_ERROR, "Value of channels option must be one of 2, 8 or 16\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
/* Check audio bit depth option for valid values: 16 or 32 */
|
|
switch (cctx->audio_depth) {
|
|
case 16:
|
|
case 32:
|
|
break;
|
|
default:
|
|
av_log(avctx, AV_LOG_ERROR, "Value for audio bit depth option must be either 16 or 32\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
/* List available devices. */
|
|
if (ctx->list_devices) {
|
|
ff_decklink_list_devices_legacy(avctx, 1, 0);
|
|
return AVERROR_EXIT;
|
|
}
|
|
|
|
ret = ff_decklink_init_device(avctx, avctx->url);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* Get input device. */
|
|
if (ctx->dl->QueryInterface(IID_IDeckLinkInput, (void **) &ctx->dli) != S_OK) {
|
|
av_log(avctx, AV_LOG_ERROR, "Could not open input device from '%s'\n",
|
|
avctx->url);
|
|
ret = AVERROR(EIO);
|
|
goto error;
|
|
}
|
|
|
|
if (ff_decklink_set_configs(avctx, DIRECTION_IN) < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "Could not set input configuration\n");
|
|
ret = AVERROR(EIO);
|
|
goto error;
|
|
}
|
|
|
|
/* List supported formats. */
|
|
if (ctx->list_formats) {
|
|
ff_decklink_list_formats(avctx, DIRECTION_IN);
|
|
ret = AVERROR_EXIT;
|
|
goto error;
|
|
}
|
|
|
|
input_callback = new decklink_input_callback(avctx);
|
|
ret = (ctx->dli->SetCallback(input_callback) == S_OK ? 0 : AVERROR_EXTERNAL);
|
|
input_callback->Release();
|
|
if (ret < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "Cannot set input callback\n");
|
|
goto error;
|
|
}
|
|
|
|
allocator = new decklink_allocator();
|
|
ret = (ctx->dli->SetVideoInputFrameMemoryAllocator(allocator) == S_OK ? 0 : AVERROR_EXTERNAL);
|
|
allocator->Release();
|
|
if (ret < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "Cannot set custom memory allocator\n");
|
|
goto error;
|
|
}
|
|
|
|
if (!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 (ctx->raw_format == (BMDPixelFormat)0)
|
|
ctx->raw_format = bmdFormat8BitYUV;
|
|
if (ff_decklink_set_format(avctx, DIRECTION_IN) < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "Could not set format code %s for %s\n",
|
|
cctx->format_code ? cctx->format_code : "(unset)", avctx->url);
|
|
ret = AVERROR(EIO);
|
|
goto error;
|
|
}
|
|
|
|
#if !CONFIG_LIBZVBI
|
|
if (ctx->teletext_lines && ctx->bmd_mode == bmdModePAL) {
|
|
av_log(avctx, AV_LOG_ERROR, "Libzvbi support is needed for capturing SD PAL teletext, please recompile FFmpeg.\n");
|
|
ret = AVERROR(ENOSYS);
|
|
goto error;
|
|
}
|
|
#endif
|
|
|
|
/* Setup streams. */
|
|
st = avformat_new_stream(avctx, NULL);
|
|
if (!st) {
|
|
av_log(avctx, AV_LOG_ERROR, "Cannot add stream\n");
|
|
ret = AVERROR(ENOMEM);
|
|
goto error;
|
|
}
|
|
st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
|
|
st->codecpar->codec_id = cctx->audio_depth == 32 ? AV_CODEC_ID_PCM_S32LE : AV_CODEC_ID_PCM_S16LE;
|
|
st->codecpar->sample_rate = bmdAudioSampleRate48kHz;
|
|
st->codecpar->ch_layout.nb_channels = cctx->audio_channels;
|
|
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");
|
|
ret = AVERROR(ENOMEM);
|
|
goto error;
|
|
}
|
|
st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
|
|
st->codecpar->width = ctx->bmd_width;
|
|
st->codecpar->height = ctx->bmd_height;
|
|
|
|
st->time_base.den = ctx->bmd_tb_den;
|
|
st->time_base.num = ctx->bmd_tb_num;
|
|
st->r_frame_rate = av_make_q(st->time_base.den, st->time_base.num);
|
|
|
|
switch(ctx->raw_format) {
|
|
case bmdFormat8BitYUV:
|
|
st->codecpar->codec_id = AV_CODEC_ID_RAWVIDEO;
|
|
st->codecpar->format = AV_PIX_FMT_UYVY422;
|
|
st->codecpar->bit_rate = av_rescale(ctx->bmd_width * ctx->bmd_height * 16, st->time_base.den, st->time_base.num);
|
|
break;
|
|
case bmdFormat10BitYUV:
|
|
st->codecpar->codec_id = AV_CODEC_ID_V210;
|
|
st->codecpar->bit_rate = av_rescale(ctx->bmd_width * ctx->bmd_height * 64, st->time_base.den, st->time_base.num * 3);
|
|
break;
|
|
case bmdFormat8BitARGB:
|
|
st->codecpar->codec_id = AV_CODEC_ID_RAWVIDEO;
|
|
st->codecpar->format = AV_PIX_FMT_0RGB;
|
|
st->codecpar->bit_rate = av_rescale(ctx->bmd_width * ctx->bmd_height * 32, st->time_base.den, st->time_base.num);
|
|
break;
|
|
case bmdFormat8BitBGRA:
|
|
st->codecpar->codec_id = AV_CODEC_ID_RAWVIDEO;
|
|
st->codecpar->format = AV_PIX_FMT_BGR0;
|
|
st->codecpar->bit_rate = av_rescale(ctx->bmd_width * ctx->bmd_height * 32, st->time_base.den, st->time_base.num);
|
|
break;
|
|
case bmdFormat10BitRGB:
|
|
st->codecpar->codec_id = AV_CODEC_ID_R210;
|
|
st->codecpar->bit_rate = av_rescale(ctx->bmd_width * ctx->bmd_height * 30, st->time_base.den, st->time_base.num);
|
|
break;
|
|
default:
|
|
char fourcc_str[AV_FOURCC_MAX_STRING_SIZE] = {0};
|
|
av_fourcc_make_string(fourcc_str, ctx->raw_format);
|
|
av_log(avctx, AV_LOG_ERROR, "Raw Format %s not supported\n", fourcc_str);
|
|
ret = AVERROR(EINVAL);
|
|
goto error;
|
|
}
|
|
|
|
switch (ctx->bmd_field_dominance) {
|
|
case bmdUpperFieldFirst:
|
|
st->codecpar->field_order = AV_FIELD_TT;
|
|
break;
|
|
case bmdLowerFieldFirst:
|
|
st->codecpar->field_order = AV_FIELD_BB;
|
|
break;
|
|
case bmdProgressiveFrame:
|
|
case bmdProgressiveSegmentedFrame:
|
|
st->codecpar->field_order = AV_FIELD_PROGRESSIVE;
|
|
break;
|
|
}
|
|
|
|
avpriv_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */
|
|
|
|
ctx->video_st=st;
|
|
|
|
if (ctx->enable_klv) {
|
|
st = avformat_new_stream(avctx, NULL);
|
|
if (!st) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto error;
|
|
}
|
|
st->codecpar->codec_type = AVMEDIA_TYPE_DATA;
|
|
st->time_base.den = ctx->bmd_tb_den;
|
|
st->time_base.num = ctx->bmd_tb_num;
|
|
st->codecpar->codec_id = AV_CODEC_ID_SMPTE_KLV;
|
|
avpriv_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */
|
|
ctx->klv_st = st;
|
|
}
|
|
|
|
if (ctx->teletext_lines) {
|
|
st = avformat_new_stream(avctx, NULL);
|
|
if (!st) {
|
|
av_log(avctx, AV_LOG_ERROR, "Cannot add stream\n");
|
|
ret = AVERROR(ENOMEM);
|
|
goto error;
|
|
}
|
|
st->codecpar->codec_type = AVMEDIA_TYPE_SUBTITLE;
|
|
st->time_base.den = ctx->bmd_tb_den;
|
|
st->time_base.num = ctx->bmd_tb_num;
|
|
st->codecpar->codec_id = AV_CODEC_ID_DVB_TELETEXT;
|
|
avpriv_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */
|
|
ctx->teletext_st = st;
|
|
}
|
|
|
|
av_log(avctx, AV_LOG_VERBOSE, "Using %d input audio channels\n", ctx->audio_st->codecpar->ch_layout.nb_channels);
|
|
result = ctx->dli->EnableAudioInput(bmdAudioSampleRate48kHz, cctx->audio_depth == 32 ? bmdAudioSampleType32bitInteger : bmdAudioSampleType16bitInteger, ctx->audio_st->codecpar->ch_layout.nb_channels);
|
|
|
|
if (result != S_OK) {
|
|
av_log(avctx, AV_LOG_ERROR, "Cannot enable audio input\n");
|
|
ret = AVERROR(EIO);
|
|
goto error;
|
|
}
|
|
|
|
result = ctx->dli->EnableVideoInput(ctx->bmd_mode,
|
|
ctx->raw_format,
|
|
bmdVideoInputFlagDefault);
|
|
|
|
if (result != S_OK) {
|
|
av_log(avctx, AV_LOG_ERROR, "Cannot enable video input\n");
|
|
ret = AVERROR(EIO);
|
|
goto error;
|
|
}
|
|
|
|
avpacket_queue_init (avctx, &ctx->queue);
|
|
|
|
if (ctx->dli->StartStreams() != S_OK) {
|
|
av_log(avctx, AV_LOG_ERROR, "Cannot start input stream\n");
|
|
ret = AVERROR(EIO);
|
|
goto error;
|
|
}
|
|
|
|
return 0;
|
|
|
|
error:
|
|
ff_decklink_cleanup(avctx);
|
|
return ret;
|
|
}
|
|
|
|
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);
|
|
|
|
if (ctx->tc_format && !(av_dict_get(ctx->video_st->metadata, "timecode", NULL, 0))) {
|
|
size_t size;
|
|
const uint8_t *side_metadata = av_packet_get_side_data(pkt, AV_PKT_DATA_STRINGS_METADATA, &size);
|
|
if (side_metadata) {
|
|
if (av_packet_unpack_dictionary(side_metadata, size, &ctx->video_st->metadata) < 0)
|
|
av_log(avctx, AV_LOG_ERROR, "Unable to set timecode\n");
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ff_decklink_list_input_devices(AVFormatContext *avctx, struct AVDeviceInfoList *device_list)
|
|
{
|
|
return ff_decklink_list_devices(avctx, device_list, 1, 0);
|
|
}
|
|
|
|
} /* extern "C" */
|