[FFmpeg-devel] [PATCH] avcodec/libdcadec: export matrix encoding side data

[James Almer]

Signed-off-by: James Almer <jamr...@gmail.com>
---
 libavcodec/libdcadec.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/libavcodec/libdcadec.c b/libavcodec/libdcadec.c
index 890d270..9d4b9e8 100644
--- a/libavcodec/libdcadec.c
+++ b/libavcodec/libdcadec.c
@@ -41,6 +41,7 @@ static int dcadec_decode_frame(AVCodecContext *avctx, void 
*data,
 {
     DCADecContext *s = avctx->priv_data;
     AVFrame *frame = data;
+    struct dcadec_exss_info *exss;
     int ret, i, k;
     int **samples, nsamples, channel_mask, sample_rate, bits_per_sample, 
profile;
     uint32_t mrk;
@@ -127,6 +128,26 @@ static int dcadec_decode_frame(AVCodecContext *avctx, void 
*data,
     } else
         avctx->bit_rate = 0;
 
+    if (exss = dcadec_context_get_exss_info(s->ctx)) {
+        enum AVMatrixEncoding matrix_encoding;
+
+        switch(exss->matrix_encoding) {
+        case DCADEC_MATRIX_ENCODING_SURROUND:
+            matrix_encoding = AV_MATRIX_ENCODING_DOLBY;
+            break;
+        case DCADEC_MATRIX_ENCODING_HEADPHONE:
+            matrix_encoding = AV_MATRIX_ENCODING_DOLBYHEADPHONE;
+            break;
+        default:
+            matrix_encoding = AV_MATRIX_ENCODING_NONE;
+            break;
+        }
+        dcadec_context_free_exss_info(exss);
+
+        if ((ret = ff_side_data_update_matrix_encoding(frame, 
matrix_encoding)) < 0)
+            return ret;
+    }
+
     frame->nb_samples = nsamples;
     if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
         return ret;
-- 
2.4.5

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