extern "C" {
#include "libavformat/avformat.h"
+#include "libavcodec/bytestream.h"
+#include "libavutil/frame.h"
#include "libavutil/internal.h"
#include "libavutil/imgutils.h"
#include "avdevice.h"
av_log(avctx, AV_LOG_ERROR, "Only one audio stream is supported!\n");
return -1;
}
- if (c->sample_rate != 48000) {
- av_log(avctx, AV_LOG_ERROR, "Unsupported sample rate!"
- " Only 48kHz is supported.\n");
- return -1;
- }
- if (c->ch_layout.nb_channels != 2 && c->ch_layout.nb_channels != 8 && c->ch_layout.nb_channels != 16) {
- av_log(avctx, AV_LOG_ERROR, "Unsupported number of channels!"
- " Only 2, 8 or 16 channels are supported.\n");
+
+ if (c->codec_id == AV_CODEC_ID_AC3) {
+ /* Regardless of the number of channels in the codec, we're only
+ using 2 SDI audio channels at 48000Hz */
+ ctx->channels = 2;
+ } else if (c->codec_id == AV_CODEC_ID_PCM_S16LE) {
+ if (c->sample_rate != 48000) {
+ av_log(avctx, AV_LOG_ERROR, "Unsupported sample rate!"
+ " Only 48kHz is supported.\n");
+ return -1;
+ }
+ if (c->ch_layout.nb_channels != 2 && c->ch_layout.nb_channels != 8 && c->ch_layout.nb_channels != 16) {
+ av_log(avctx, AV_LOG_ERROR, "Unsupported number of channels!"
+ " Only 2, 8 or 16 channels are supported.\n");
+ return -1;
+ }
+ ctx->channels = c->ch_layout.nb_channels;
+ } else {
+ av_log(avctx, AV_LOG_ERROR, "Unsupported codec specified!"
+ " Only PCM_S16LE and AC-3 are supported.\n");
return -1;
}
+
if (ctx->dlo->EnableAudioOutput(bmdAudioSampleRate48kHz,
bmdAudioSampleType16bitInteger,
- c->ch_layout.nb_channels,
+ ctx->channels,
bmdAudioOutputStreamTimestamped) != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Could not enable audio output!\n");
return -1;
}
/* The device expects the sample rate to be fixed. */
- avpriv_set_pts_info(st, 64, 1, c->sample_rate);
- ctx->channels = c->ch_layout.nb_channels;
+ avpriv_set_pts_info(st, 64, 1, 48000);
ctx->audio = 1;
return 0;
}
+/* Wrap the AC-3 packet into an S337 payload that is in S16LE format which can be easily
+ injected into the PCM stream. Note: despite the function name, only AC-3 is implemented */
+static int create_s337_payload(AVPacket *pkt, uint8_t **outbuf, int *outsize)
+{
+ /* Note: if the packet size is not divisible by four, we need to make the actual
+ payload larger to ensure it ends on an two channel S16LE boundary */
+ int payload_size = FFALIGN(pkt->size, 4) + 8;
+ uint16_t bitcount = pkt->size * 8;
+ uint8_t *s337_payload;
+ PutByteContext pb;
+
+ /* Sanity check: According to SMPTE ST 340:2015 Sec 4.1, the AC-3 sync frame will
+ exactly match the 1536 samples of baseband (PCM) audio that it represents. */
+ if (pkt->size > 1536)
+ return AVERROR(EINVAL);
+
+ /* Encapsulate AC3 syncframe into SMPTE 337 packet */
+ s337_payload = (uint8_t *) av_malloc(payload_size);
+ if (s337_payload == NULL)
+ return AVERROR(ENOMEM);
+ bytestream2_init_writer(&pb, s337_payload, payload_size);
+ bytestream2_put_le16u(&pb, 0xf872); /* Sync word 1 */
+ bytestream2_put_le16u(&pb, 0x4e1f); /* Sync word 1 */
+ bytestream2_put_le16u(&pb, 0x0001); /* Burst Info, including data type (1=ac3) */
+ bytestream2_put_le16u(&pb, bitcount); /* Length code */
+ for (int i = 0; i < (pkt->size - 1); i += 2)
+ bytestream2_put_le16u(&pb, (pkt->data[i] << 8) | pkt->data[i+1]);
+
+ /* Ensure final payload is aligned on 4-byte boundary */
+ if (pkt->size & 1)
+ bytestream2_put_le16u(&pb, pkt->data[pkt->size - 1] << 8);
+ if ((pkt->size & 3) == 1 || (pkt->size & 3) == 2)
+ bytestream2_put_le16u(&pb, 0);
+
+ *outsize = payload_size;
+ *outbuf = s337_payload;
+ return 0;
+}
+
+static int decklink_setup_subtitle(AVFormatContext *avctx, AVStream *st)
+{
+ int ret = -1;
+
+ switch(st->codecpar->codec_id) {
+#if CONFIG_LIBKLVANC
+ case AV_CODEC_ID_EIA_608:
+ /* No special setup required */
+ ret = 0;
+ break;
+#endif
+ default:
+ av_log(avctx, AV_LOG_ERROR, "Unsupported subtitle codec specified\n");
+ break;
+ }
+
+ return ret;
+}
+
+static int decklink_setup_data(AVFormatContext *avctx, AVStream *st)
+{
+ int ret = -1;
+
+ switch(st->codecpar->codec_id) {
+#if CONFIG_LIBKLVANC
+ case AV_CODEC_ID_SMPTE_2038:
+ /* No specific setup required */
+ ret = 0;
+ break;
+#endif
+ default:
+ av_log(avctx, AV_LOG_ERROR, "Unsupported data codec specified\n");
+ break;
+ }
+
+ return ret;
+}
+
av_cold int ff_decklink_write_trailer(AVFormatContext *avctx)
{
struct decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data;
#if CONFIG_LIBKLVANC
klvanc_context_destroy(ctx->vanc_ctx);
#endif
+ ff_decklink_packet_queue_end(&ctx->vanc_queue);
+ ff_ccfifo_uninit(&ctx->cc_fifo);
av_freep(&cctx->ctx);
return 0;
ret = klvanc_set_framerate_EIA_708B(cdp, ctx->bmd_tb_num, ctx->bmd_tb_den);
if (ret) {
- av_log(avctx, AV_LOG_ERROR, "Invalid framerate specified: %lld/%lld\n",
+ av_log(avctx, AV_LOG_ERROR, "Invalid framerate specified: %" PRId64 "/%" PRId64 "\n",
ctx->bmd_tb_num, ctx->bmd_tb_den);
klvanc_destroy_eia708_cdp(cdp);
return;
}
}
+/* See SMPTE ST 2016-3:2009 */
+static void construct_afd(AVFormatContext *avctx, struct decklink_ctx *ctx,
+ AVPacket *pkt, struct klvanc_line_set_s *vanc_lines,
+ AVStream *st)
+{
+ struct klvanc_packet_afd_s *afd = NULL;
+ uint16_t *afd_words = NULL;
+ uint16_t len;
+ size_t size;
+ int f1_line = 12, f2_line = 0, ret;
+
+ const uint8_t *data = av_packet_get_side_data(pkt, AV_PKT_DATA_AFD, &size);
+ if (!data || size == 0)
+ return;
+
+ ret = klvanc_create_AFD(&afd);
+ if (ret)
+ return;
+
+ ret = klvanc_set_AFD_val(afd, data[0]);
+ if (ret) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid AFD value specified: %d\n",
+ data[0]);
+ klvanc_destroy_AFD(afd);
+ return;
+ }
+
+ /* Compute the AR flag based on the DAR (see ST 2016-1:2009 Sec 9.1). Note, we treat
+ anything below 1.4 as 4:3 (as opposed to the standard 1.33), because there are lots
+ of streams in the field that aren't *exactly* 4:3 but a tiny bit larger after doing
+ the math... */
+ if (av_cmp_q((AVRational) {st->codecpar->width * st->codecpar->sample_aspect_ratio.num,
+ st->codecpar->height * st->codecpar->sample_aspect_ratio.den}, (AVRational) {14, 10}) == 1)
+ afd->aspectRatio = ASPECT_16x9;
+ else
+ afd->aspectRatio = ASPECT_4x3;
+
+ ret = klvanc_convert_AFD_to_words(afd, &afd_words, &len);
+ if (ret) {
+ av_log(avctx, AV_LOG_ERROR, "Failed converting AFD packet to words\n");
+ goto out;
+ }
+
+ ret = klvanc_line_insert(ctx->vanc_ctx, vanc_lines, afd_words, len, f1_line, 0);
+ if (ret) {
+ av_log(avctx, AV_LOG_ERROR, "VANC line insertion failed\n");
+ goto out;
+ }
+
+ /* For interlaced video, insert into both fields. Switching lines for field 2
+ derived from SMPTE RP 168:2009, Sec 6, Table 2. */
+ switch (ctx->bmd_mode) {
+ case bmdModeNTSC:
+ case bmdModeNTSC2398:
+ f2_line = 273 - 10 + f1_line;
+ break;
+ case bmdModePAL:
+ f2_line = 319 - 6 + f1_line;
+ break;
+ case bmdModeHD1080i50:
+ case bmdModeHD1080i5994:
+ case bmdModeHD1080i6000:
+ f2_line = 569 - 7 + f1_line;
+ break;
+ default:
+ f2_line = 0;
+ break;
+ }
+
+ if (f2_line > 0) {
+ ret = klvanc_line_insert(ctx->vanc_ctx, vanc_lines, afd_words, len, f2_line, 0);
+ if (ret) {
+ av_log(avctx, AV_LOG_ERROR, "VANC line insertion failed\n");
+ goto out;
+ }
+ }
+
+out:
+ if (afd)
+ klvanc_destroy_AFD(afd);
+ if (afd_words)
+ free(afd_words);
+}
+
+/* Parse any EIA-608 subtitles sitting on the queue, and write packet side data
+ that will later be handled by construct_cc... */
+static void parse_608subs(AVFormatContext *avctx, struct decklink_ctx *ctx, AVPacket *pkt)
+{
+ size_t cc_size = ff_ccfifo_getoutputsize(&ctx->cc_fifo);
+ uint8_t *cc_data;
+
+ if (!ff_ccfifo_ccdetected(&ctx->cc_fifo))
+ return;
+
+ cc_data = av_packet_new_side_data(pkt, AV_PKT_DATA_A53_CC, cc_size);
+ if (cc_data)
+ ff_ccfifo_injectbytes(&ctx->cc_fifo, cc_data, cc_size);
+}
+
static int decklink_construct_vanc(AVFormatContext *avctx, struct decklink_ctx *ctx,
- AVPacket *pkt, decklink_frame *frame)
+ AVPacket *pkt, decklink_frame *frame,
+ AVStream *st)
{
struct klvanc_line_set_s vanc_lines = { 0 };
int ret = 0, i;
if (!ctx->supports_vanc)
return 0;
+ parse_608subs(avctx, ctx, pkt);
construct_cc(avctx, ctx, pkt, &vanc_lines);
+ construct_afd(avctx, ctx, pkt, &vanc_lines, st);
+
+ /* See if there any pending data packets to process */
+ while (ff_decklink_packet_queue_size(&ctx->vanc_queue) > 0) {
+ AVStream *vanc_st;
+ AVPacket vanc_pkt;
+ int64_t pts;
+
+ pts = ff_decklink_packet_queue_peekpts(&ctx->vanc_queue);
+ if (pts > ctx->last_pts) {
+ /* We haven't gotten to the video frame we are supposed to inject
+ the oldest VANC packet into yet, so leave it on the queue... */
+ break;
+ }
+
+ ret = ff_decklink_packet_queue_get(&ctx->vanc_queue, &vanc_pkt, 1);
+ if (vanc_pkt.pts + 1 < ctx->last_pts) {
+ av_log(avctx, AV_LOG_WARNING, "VANC packet too old, throwing away\n");
+ av_packet_unref(&vanc_pkt);
+ continue;
+ }
+
+ vanc_st = avctx->streams[vanc_pkt.stream_index];
+ if (vanc_st->codecpar->codec_id == AV_CODEC_ID_SMPTE_2038) {
+ struct klvanc_smpte2038_anc_data_packet_s *pkt_2038 = NULL;
+
+ klvanc_smpte2038_parse_pes_payload(vanc_pkt.data, vanc_pkt.size, &pkt_2038);
+ if (pkt_2038 == NULL) {
+ av_log(avctx, AV_LOG_ERROR, "failed to decode SMPTE 2038 PES packet");
+ av_packet_unref(&vanc_pkt);
+ continue;
+ }
+ for (int i = 0; i < pkt_2038->lineCount; i++) {
+ struct klvanc_smpte2038_anc_data_line_s *l = &pkt_2038->lines[i];
+ uint16_t *vancWords = NULL;
+ uint16_t vancWordCount;
+
+ if (klvanc_smpte2038_convert_line_to_words(l, &vancWords,
+ &vancWordCount) < 0)
+ break;
+
+ ret = klvanc_line_insert(ctx->vanc_ctx, &vanc_lines, vancWords,
+ vancWordCount, l->line_number, 0);
+ free(vancWords);
+ if (ret != 0) {
+ av_log(avctx, AV_LOG_ERROR, "VANC line insertion failed\n");
+ break;
+ }
+ }
+ klvanc_smpte2038_anc_data_packet_free(pkt_2038);
+ }
+ av_packet_unref(&vanc_pkt);
+ }
IDeckLinkVideoFrameAncillary *vanc;
int result = ctx->dlo->CreateAncillaryData(bmdFormat10BitYUV, &vanc);
uint32_t buffered;
HRESULT hr;
+ ctx->last_pts = FFMAX(ctx->last_pts, pkt->pts);
+
if (st->codecpar->codec_id == AV_CODEC_ID_WRAPPED_AVFRAME) {
if (tmp->format != AV_PIX_FMT_UYVY422 ||
tmp->width != ctx->bmd_width ||
frame = new decklink_frame(ctx, avpacket, st->codecpar->codec_id, ctx->bmd_height, ctx->bmd_width);
#if CONFIG_LIBKLVANC
- if (decklink_construct_vanc(avctx, ctx, pkt, frame))
+ if (decklink_construct_vanc(avctx, ctx, pkt, frame, st))
av_log(avctx, AV_LOG_ERROR, "Failed to construct VANC\n");
#endif
}
ctx->frames_buffer_available_spots--;
pthread_mutex_unlock(&ctx->mutex);
+ if (ctx->first_pts == AV_NOPTS_VALUE)
+ ctx->first_pts = pkt->pts;
+
/* Schedule frame for playback. */
hr = ctx->dlo->ScheduleVideoFrame((class IDeckLinkVideoFrame *) frame,
pkt->pts * ctx->bmd_tb_num,
" Video may misbehave!\n");
/* Preroll video frames. */
- if (!ctx->playback_started && pkt->pts > ctx->frames_preroll) {
+ if (!ctx->playback_started && pkt->pts > (ctx->first_pts + ctx->frames_preroll)) {
av_log(avctx, AV_LOG_DEBUG, "Ending audio preroll.\n");
if (ctx->audio && ctx->dlo->EndAudioPreroll() != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Could not end audio preroll!\n");
return AVERROR(EIO);
}
av_log(avctx, AV_LOG_DEBUG, "Starting scheduled playback.\n");
- if (ctx->dlo->StartScheduledPlayback(0, ctx->bmd_tb_den, 1.0) != S_OK) {
+ if (ctx->dlo->StartScheduledPlayback(ctx->first_pts * ctx->bmd_tb_num, ctx->bmd_tb_den, 1.0) != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Could not start scheduled playback!\n");
return AVERROR(EIO);
}
{
struct decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data;
struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;
- int sample_count = pkt->size / (ctx->channels << 1);
+ AVStream *st = avctx->streams[pkt->stream_index];
+ int sample_count;
uint32_t buffered;
+ uint8_t *outbuf = NULL;
+ int ret = 0;
ctx->dlo->GetBufferedAudioSampleFrameCount(&buffered);
if (pkt->pts > 1 && !buffered)
av_log(avctx, AV_LOG_WARNING, "There's no buffered audio."
" Audio will misbehave!\n");
- if (ctx->dlo->ScheduleAudioSamples(pkt->data, sample_count, pkt->pts,
+ if (st->codecpar->codec_id == AV_CODEC_ID_AC3) {
+ /* Encapsulate AC3 syncframe into SMPTE 337 packet */
+ int outbuf_size;
+ ret = create_s337_payload(pkt, &outbuf, &outbuf_size);
+ if (ret < 0)
+ return ret;
+ sample_count = outbuf_size / 4;
+ } else {
+ sample_count = pkt->size / (ctx->channels << 1);
+ outbuf = pkt->data;
+ }
+
+ if (ctx->dlo->ScheduleAudioSamples(outbuf, sample_count, pkt->pts,
bmdAudioSampleRate48kHz, NULL) != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Could not schedule audio samples.\n");
- return AVERROR(EIO);
+ ret = AVERROR(EIO);
+ }
+
+ if (st->codecpar->codec_id == AV_CODEC_ID_AC3)
+ av_freep(&outbuf);
+
+ return ret;
+}
+
+static int decklink_write_subtitle_packet(AVFormatContext *avctx, AVPacket *pkt)
+{
+ struct decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data;
+ struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;
+
+ ff_ccfifo_extractbytes(&ctx->cc_fifo, pkt->data, pkt->size);
+
+ return 0;
+}
+
+static int decklink_write_data_packet(AVFormatContext *avctx, AVPacket *pkt)
+{
+ struct decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data;
+ struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;
+
+ if (ff_decklink_packet_queue_put(&ctx->vanc_queue, pkt) < 0) {
+ av_log(avctx, AV_LOG_WARNING, "Failed to queue DATA packet\n");
}
return 0;
ctx->list_formats = cctx->list_formats;
ctx->preroll = cctx->preroll;
ctx->duplex_mode = cctx->duplex_mode;
+ ctx->first_pts = AV_NOPTS_VALUE;
if (cctx->link > 0 && (unsigned int)cctx->link < FF_ARRAY_ELEMS(decklink_link_conf_map))
ctx->link = decklink_link_conf_map[cctx->link];
cctx->ctx = ctx;
} else if (c->codec_type == AVMEDIA_TYPE_VIDEO) {
if (decklink_setup_video(avctx, st))
goto error;
+ } else if (c->codec_type == AVMEDIA_TYPE_DATA) {
+ if (decklink_setup_data(avctx, st))
+ goto error;
+ } else if (c->codec_type == AVMEDIA_TYPE_SUBTITLE) {
+ if (decklink_setup_subtitle(avctx, st))
+ goto error;
} else {
av_log(avctx, AV_LOG_ERROR, "Unsupported stream type.\n");
goto error;
}
}
+ /* Reconfigure the data/subtitle stream clocks to match the video */
+ for (n = 0; n < avctx->nb_streams; n++) {
+ AVStream *st = avctx->streams[n];
+ AVCodecParameters *c = st->codecpar;
+
+ if(c->codec_type == AVMEDIA_TYPE_DATA ||
+ c->codec_type == AVMEDIA_TYPE_SUBTITLE)
+ avpriv_set_pts_info(st, 64, ctx->bmd_tb_num, ctx->bmd_tb_den);
+ }
+ ff_decklink_packet_queue_init(avctx, &ctx->vanc_queue, cctx->vanc_queue_size);
+
+ ret = ff_ccfifo_init(&ctx->cc_fifo, av_make_q(ctx->bmd_tb_den, ctx->bmd_tb_num), avctx);
+ if (ret < 0) {
+ av_log(ctx, AV_LOG_ERROR, "Failure to setup CC FIFO queue\n");
+ goto error;
+ }
+
return 0;
error:
int ff_decklink_write_packet(AVFormatContext *avctx, AVPacket *pkt)
{
- struct decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data;
- struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;
AVStream *st = avctx->streams[pkt->stream_index];
- ctx->last_pts = FFMAX(ctx->last_pts, pkt->pts);
-
if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
return decklink_write_video_packet(avctx, pkt);
else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
return decklink_write_audio_packet(avctx, pkt);
+ else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA)
+ return decklink_write_data_packet(avctx, pkt);
+ else if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
+ return decklink_write_subtitle_packet(avctx, pkt);
return AVERROR(EIO);
}
projects / platform / upstream / ffmpeg.git / blobdiff