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path: root/gnu/packages/patches/ffmpeg-jami-libopusenc-enable-FEC.patch
blob: 43b786c567a643d4fa0165a6cca7161ff5f4d94c (about) (plain)
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diff --git a/libavcodec/libopusencc.c b/libavcodec/libopusencc.c
index 2a97811d18..40ee7b8fec 100644
--- a/libavcodec/libopusenc.c
+++ b/libavcodec/libopusenc.c
@@ -33,6 +33,7 @@
 typedef struct LibopusEncOpts {
     int vbr;
     int application;
+    int enable_fec;
     int packet_loss;
     int complexity;
     float frame_duration;
@@ -143,6 +144,13 @@
                "Unable to set constrained VBR: %s\n", opus_strerror(ret));

     ret = opus_multistream_encoder_ctl(enc,
+                                       OPUS_SET_INBAND_FEC(opts->enable_fec));
+    if (ret != OPUS_OK)
+        av_log(avctx, AV_LOG_WARNING,
+               "Unable to set enable FEC flag percentage: %s\n",
+               opus_strerror(ret));
+
+    ret = opus_multistream_encoder_ctl(enc,
                                        OPUS_SET_PACKET_LOSS_PERC(opts->packet_loss));
     if (ret != OPUS_OK)
         av_log(avctx, AV_LOG_WARNING,
@@ -452,6 +460,15 @@
     int ret;
     int discard_padding;
 
+    // Reload packet loss setting
+    ret = opus_multistream_encoder_ctl(opus->enc,
+                                       OPUS_SET_PACKET_LOSS_PERC(opus->opts.packet_loss));
+    if (ret != OPUS_OK)
+        av_log(avctx, AV_LOG_WARNING,
+               "Unable to set expected packet loss percentage: %s\n",
+               opus_strerror(ret));
+
+
     if (frame) {
         ret = ff_af_queue_add(&opus->afq, frame);
         if (ret < 0)
@@ -543,6 +560,7 @@
         { "audio",          "Favor faithfulness to the input",         0, AV_OPT_TYPE_CONST, { .i64 = OPUS_APPLICATION_AUDIO },               0, 0, FLAGS, "application" },
         { "lowdelay",       "Restrict to only the lowest delay modes", 0, AV_OPT_TYPE_CONST, { .i64 = OPUS_APPLICATION_RESTRICTED_LOWDELAY }, 0, 0, FLAGS, "application" },
     { "frame_duration", "Duration of a frame in milliseconds", OFFSET(frame_duration), AV_OPT_TYPE_FLOAT, { .dbl = 20.0 }, 2.5, 120.0, FLAGS },
+    { "enable_fec",     "Enable forward error correction",     OFFSET(enable_fec),     AV_OPT_TYPE_BOOL,  { .i64 = 0 },    0,   1,     FLAGS },
     { "packet_loss",    "Expected packet loss percentage",     OFFSET(packet_loss),    AV_OPT_TYPE_INT,   { .i64 = 0 },    0,   100,  FLAGS },
     { "vbr",            "Variable bit rate mode",              OFFSET(vbr),            AV_OPT_TYPE_INT,   { .i64 = 1 },    0,   2,    FLAGS, "vbr" },
         { "off",            "Use constant bit rate", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, FLAGS, "vbr" },