From add0cbea2ab77bc0462a9da9517d6596f216ba83 Mon Sep 17 00:00:00 2001
From: Oliver Freyermuth <o.freyermuth@googlemail.com>
Date: Sun, 8 Oct 2017 18:05:18 +0200
Subject: dvb: Implement parsing of modulation for VDR-style channels config.

This is required for ATSC cable / terrestrial support.

Signed-off-by: Oliver Freyermuth <o.freyermuth@googlemail.com>
---
 stream/stream_dvb.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

(limited to 'stream/stream_dvb.c')

diff --git a/stream/stream_dvb.c b/stream/stream_dvb.c
index 856c9a7ffd..3f0a10db7b 100644
--- a/stream/stream_dvb.c
+++ b/stream/stream_dvb.c
@@ -86,6 +86,50 @@ const struct m_sub_options stream_dvb_conf = {
 
 void dvbin_close(stream_t *stream);
 
+static fe_modulation_t parse_vdr_modulation(const char** modstring) {
+    if (!strncmp(*modstring, "16", 2)) {
+        (*modstring)+=2;
+        return QAM_16;
+    } else if (!strncmp(*modstring, "32", 2)) {
+        (*modstring)+=2;
+        return QAM_32;
+    } else if (!strncmp(*modstring, "64", 2)) {
+        (*modstring)+=2;
+        return QAM_64;
+    } else if (!strncmp(*modstring, "128", 3)) {
+        (*modstring)+=3;
+        return QAM_128;
+    } else if (!strncmp(*modstring, "256", 3)) {
+        (*modstring)+=3;
+        return QAM_256;
+    } else if (!strncmp(*modstring, "998", 3)) {
+        (*modstring)+=3;
+        return QAM_AUTO;
+    } else if (!strncmp(*modstring, "2", 1)) {
+        (*modstring)++;
+        return QPSK;
+    } else if (!strncmp(*modstring, "5", 1)) {
+        (*modstring)++;
+        return PSK_8;
+    } else if (!strncmp(*modstring, "6", 1)) {
+        (*modstring)++;
+        return APSK_16;
+    } else if (!strncmp(*modstring, "7", 1)) {
+        (*modstring)++;
+        return APSK_32;
+    } else if (!strncmp(*modstring, "10", 2)) {
+        (*modstring)+=2;
+        return VSB_8;
+    } else if (!strncmp(*modstring, "11", 2)) {
+        (*modstring)+=2;
+        return VSB_16;
+    } else if (!strncmp(*modstring, "12", 2)) {
+        (*modstring)+=2;
+        return DQPSK;
+    } else {
+        return QAM_AUTO;
+    }
+}
 
 static void parse_vdr_par_string(const char *vdr_par_str, dvb_channel_t *ptr)
 {
@@ -131,6 +175,10 @@ static void parse_vdr_par_string(const char *vdr_par_str, dvb_channel_t *ptr)
                 }
                 vdr_par++;
                 break;
+            case 'M':
+                vdr_par++;
+                ptr->mod = parse_vdr_modulation(&vdr_par);
+                break;
             default:
                 vdr_par++;
             }
@@ -299,6 +347,8 @@ static dvb_channels_list_t *dvb_get_channels(struct mp_log *log,
                         &num_chars);
 
         if (num_chars == strlen(&line[k])) {
+            // Modulation parsed here, not via old xine-parsing path.
+            mod[0] = '\0';
             // It's a VDR-style config line.
             parse_vdr_par_string(vdr_par_str, ptr);
             // Units in VDR-style config files are divided by 1000.
-- 
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