@@ -311,6 +311,10 @@ Sets maximum input buffer size in bytes. If the buffering reaches this value,

 incoming frames will be dropped.

 Defaults to @samp{1073741824}.

+@item audio_depth

+Sets the audio sample bit depth. Must be @samp{16} or @samp{32}.

+Defaults to @samp{16}.

+

 @end table

 @subsection Examples

@@ -97,6 +97,7 @@ struct decklink_ctx {

     int frames_buffer_available_spots;

     int channels;

+    int audio_depth;

 };

 typedef enum { DIRECTION_IN, DIRECTION_OUT} decklink_direction_t;

@@ -42,6 +42,7 @@ struct decklink_cctx {

     double preroll;

     int v210;

     int audio_channels;

+    int audio_depth;

     int duplex_mode;

     DecklinkPtsSource audio_pts_source;

     DecklinkPtsSource video_pts_source;

@@ -771,7 +771,7 @@ HRESULT decklink_input_callback::VideoInputFrameArrived(

         av_init_packet(&pkt);

         //hack among hacks

-        pkt.size = audioFrame->GetSampleFrameCount() * ctx->audio_st->codecpar->channels * (16 / 8);

+        pkt.size = audioFrame->GetSampleFrameCount() * ctx->audio_st->codecpar->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, ctx->audio_pts_source, ctx->audio_st->time_base, &initial_audio_pts);

@@ -854,6 +854,7 @@ av_cold int ff_decklink_read_header(AVFormatContext *avctx)

     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;

     cctx->ctx = ctx;

     /* Check audio channel option for valid values: 2, 8 or 16 */

@@ -867,6 +868,16 @@ av_cold int ff_decklink_read_header(AVFormatContext *avctx)

             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);

@@ -930,7 +941,7 @@ av_cold int ff_decklink_read_header(AVFormatContext *avctx)

         goto error;

     }

     st->codecpar->codec_type  = AVMEDIA_TYPE_AUDIO;

-    st->codecpar->codec_id    = AV_CODEC_ID_PCM_S16LE;

+    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->channels    = cctx->audio_channels;

     avpriv_set_pts_info(st, 64, 1, 1000000);  /* 64 bits pts in us */

@@ -1021,7 +1032,7 @@ av_cold int ff_decklink_read_header(AVFormatContext *avctx)

     }

     av_log(avctx, AV_LOG_VERBOSE, "Using %d input audio channels\n", ctx->audio_st->codecpar->channels);

-    result = ctx->dli->EnableAudioInput(bmdAudioSampleRate48kHz, bmdAudioSampleType16bitInteger, ctx->audio_st->codecpar->channels);

+    result = ctx->dli->EnableAudioInput(bmdAudioSampleRate48kHz, cctx->audio_depth == 32 ? bmdAudioSampleType32bitInteger : bmdAudioSampleType16bitInteger, ctx->audio_st->codecpar->channels);

     if (result != S_OK) {

         av_log(avctx, AV_LOG_ERROR, "Cannot enable audio input\n");

@@ -72,6 +72,7 @@ static const AVOption options[] = {

     { "wallclock",     NULL,                                          0,  AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_WALLCLOCK}, 0, 0, DEC, "pts_source"},

     { "draw_bars",     "draw bars on signal loss" , OFFSET(draw_bars),    AV_OPT_TYPE_BOOL,  { .i64 = 1}, 0, 1, DEC },

     { "queue_size",    "input queue buffer size",   OFFSET(queue_size),   AV_OPT_TYPE_INT64, { .i64 = (1024 * 1024 * 1024)}, 0, INT64_MAX, DEC },

+    { "audio_depth",   "audio bitdepth (16 or 32)", OFFSET(audio_depth),  AV_OPT_TYPE_INT,   { .i64 = 16}, 16, 32, DEC },

     { NULL },

 };

@@ -29,7 +29,7 @@

 #define LIBAVDEVICE_VERSION_MAJOR  57

 #define LIBAVDEVICE_VERSION_MINOR  11

-#define LIBAVDEVICE_VERSION_MICRO 100

+#define LIBAVDEVICE_VERSION_MICRO 101

 #define LIBAVDEVICE_VERSION_INT AV_VERSION_INT(LIBAVDEVICE_VERSION_MAJOR, \

                                                LIBAVDEVICE_VERSION_MINOR, \