---
 libavfilter/af_join.c | 84 +++++++++++++++++++++++----------------------------
 1 file changed, 38 insertions(+), 46 deletions(-)

diff --git a/libavfilter/af_join.c b/libavfilter/af_join.c
index b61033f7a2..6c000b9257 100644
--- a/libavfilter/af_join.c
+++ b/libavfilter/af_join.c
@@ -37,8 +37,8 @@
 typedef struct ChannelMap {
     int input;                ///< input stream index
     int       in_channel_idx; ///< index of in_channel in the input stream data
-    uint64_t  in_channel;     ///< layout describing the input channel
-    uint64_t out_channel;     ///< layout describing the output channel
+    enum AVChannel  in_channel; ///< input channel
+    enum AVChannel out_channel; ///< output channel
 } ChannelMap;
 
 typedef struct JoinContext {
@@ -46,8 +46,7 @@ typedef struct JoinContext {
 
     int inputs;
     char *map;
-    char    *channel_layout_str;
-    uint64_t channel_layout;
+    AVChannelLayout ch_layout;
 
     int      nb_channels;
     ChannelMap *channels;
@@ -68,7 +67,7 @@ typedef struct JoinContext {
 static const AVOption join_options[] = {
     { "inputs",         "Number of input streams.", OFFSET(inputs),            
 AV_OPT_TYPE_INT,    { .i64 = 2 }, 1, INT_MAX,       A },
     { "channel_layout", "Channel layout of the "
-                        "output stream.",           
OFFSET(channel_layout_str), AV_OPT_TYPE_STRING, {.str = "stereo"}, 0, 0, A },
+                        "output stream.",           OFFSET(ch_layout),         
 AV_OPT_TYPE_CHANNEL_LAYOUT, {.str = "stereo"}, 0, 0, A },
     { "map",            "A comma-separated list of channels maps in the format 
"
                         "'input_stream.input_channel-output_channel.",
                                                     OFFSET(map),               
 AV_OPT_TYPE_STRING,                 .flags = A },
@@ -106,7 +105,7 @@ static int parse_maps(AVFilterContext *ctx)
 
     while (cur && *cur) {
         char *sep, *next, *p;
-        uint64_t in_channel = 0, out_channel = 0;
+        enum AVChannel in_channel = -1, out_channel;
         int input_idx, out_ch_idx, in_ch_idx;
 
         next = strchr(cur, separator);
@@ -122,26 +121,22 @@ static int parse_maps(AVFilterContext *ctx)
         *sep++ = 0;
 
 #define PARSE_CHANNEL(str, var, inout)                                         
\
-        if (!(var = av_get_channel_layout(str))) {                             
\
+        var = av_channel_from_string(str);                                     
\
+        if ((int) var < 0) {                                                   
\
             av_log(ctx, AV_LOG_ERROR, "Invalid " inout " channel: %s.\n", 
str);\
             return AVERROR(EINVAL);                                            
\
         }                                                                      
\
-        if (av_get_channel_layout_nb_channels(var) != 1) {                     
\
-            av_log(ctx, AV_LOG_ERROR, "Channel map describes more than one "   
\
-                   inout " channel.\n");                                       
\
-            return AVERROR(EINVAL);                                            
\
-        }
 
         /* parse output channel */
         PARSE_CHANNEL(sep, out_channel, "output");
-        if (!(out_channel & s->channel_layout)) {
+
+        out_ch_idx = av_channel_layout_channel_index(&s->ch_layout,
+                                                     out_channel);
+        if (out_ch_idx < 0) {
             av_log(ctx, AV_LOG_ERROR, "Output channel '%s' is not present in "
                    "requested channel layout.\n", sep);
             return AVERROR(EINVAL);
         }
-
-        out_ch_idx = av_get_channel_layout_channel_index(s->channel_layout,
-                                                         out_channel);
         if (s->channels[out_ch_idx].input >= 0) {
             av_log(ctx, AV_LOG_ERROR, "Multiple maps for output channel "
                    "'%s'.\n", sep);
@@ -167,7 +162,7 @@ static int parse_maps(AVFilterContext *ctx)
         }
 
         s->channels[out_ch_idx].input      = input_idx;
-        if (in_channel)
+        if ((int) in_channel >= 0)
             s->channels[out_ch_idx].in_channel = in_channel;
         else
             s->channels[out_ch_idx].in_channel_idx = in_ch_idx;
@@ -182,14 +177,7 @@ static av_cold int join_init(AVFilterContext *ctx)
     JoinContext *s = ctx->priv;
     int ret, i;
 
-    if (!(s->channel_layout = av_get_channel_layout(s->channel_layout_str))) {
-        av_log(ctx, AV_LOG_ERROR, "Error parsing channel layout '%s'.\n",
-               s->channel_layout_str);
-        ret = AVERROR(EINVAL);
-        goto fail;
-    }
-
-    s->nb_channels  = av_get_channel_layout_nb_channels(s->channel_layout);
+    s->nb_channels  = s->ch_layout.nb_channels;
     s->channels     = av_mallocz(sizeof(*s->channels) * s->nb_channels);
     s->buffers      = av_mallocz(sizeof(*s->buffers)  * s->nb_channels);
     s->input_frames = av_mallocz(sizeof(*s->input_frames) * s->inputs);
@@ -199,7 +187,7 @@ static av_cold int join_init(AVFilterContext *ctx)
     }
 
     for (i = 0; i < s->nb_channels; i++) {
-        s->channels[i].out_channel = 
av_channel_layout_extract_channel(s->channel_layout, i);
+        s->channels[i].out_channel = 
av_channel_layout_get_channel(&s->ch_layout, i);
         s->channels[i].input       = -1;
     }
 
@@ -246,7 +234,7 @@ static int join_query_formats(AVFilterContext *ctx)
     AVFilterChannelLayouts *layouts = NULL;
     int i;
 
-    ff_add_channel_layout(&layouts, s->channel_layout);
+    ff_add_channel_layout(&layouts, s->ch_layout.u.mask);
     ff_channel_layouts_ref(layouts, &ctx->outputs[0]->in_channel_layouts);
 
     for (i = 0; i < ctx->nb_inputs; i++)
@@ -267,11 +255,11 @@ static void guess_map_matching(AVFilterContext *ctx, 
ChannelMap *ch,
     for (i = 0; i < ctx->nb_inputs; i++) {
         AVFilterLink *link = ctx->inputs[i];
 
-        if (ch->out_channel & link->channel_layout &&
-            !(ch->out_channel & inputs[i])) {
+        if (av_channel_layout_channel_index(&link->ch_layout, ch->out_channel) 
>= 0 &&
+            !((1ULL << ch->out_channel) & inputs[i])) {
             ch->input      = i;
             ch->in_channel = ch->out_channel;
-            inputs[i]     |= ch->out_channel;
+            inputs[i]     |= 1ULL << ch->out_channel;
             return;
         }
     }
@@ -285,12 +273,14 @@ static void guess_map_any(AVFilterContext *ctx, 
ChannelMap *ch,
     for (i = 0; i < ctx->nb_inputs; i++) {
         AVFilterLink *link = ctx->inputs[i];
 
-        if ((inputs[i] & link->channel_layout) != link->channel_layout) {
-            uint64_t unused = link->channel_layout & ~inputs[i];
+        if ((inputs[i] & link->ch_layout.u.mask) != link->ch_layout.u.mask) {
+            uint64_t unused = link->ch_layout.u.mask & ~inputs[i];
+            AVChannelLayout layout = {0};
+            av_channel_layout_from_mask(&layout, unused);
 
             ch->input      = i;
-            ch->in_channel = av_channel_layout_extract_channel(unused, 0);
-            inputs[i]     |= ch->in_channel;
+            ch->in_channel = av_channel_layout_get_channel(&layout, 0);
+            inputs[i]     |= 1ULL << ch->in_channel;
             return;
         }
     }
@@ -315,19 +305,19 @@ static int join_config_output(AVFilterLink *outlink)
 
         inlink = ctx->inputs[ch->input];
 
-        if (!ch->in_channel)
-            ch->in_channel = 
av_channel_layout_extract_channel(inlink->channel_layout,
-                                                               
ch->in_channel_idx);
+        if ((int) ch->in_channel < 0)
+            ch->in_channel = av_channel_layout_get_channel(&inlink->ch_layout,
+                                                           ch->in_channel_idx);
 
-        if (!(ch->in_channel & inlink->channel_layout)) {
+        if ((int) ch->in_channel < 0) {
             av_log(ctx, AV_LOG_ERROR, "Requested channel %s is not present in "
-                   "input stream #%d.\n", av_get_channel_name(ch->in_channel),
+                   "input stream #%d.\n", av_channel_name(ch->in_channel),
                    ch->input);
             ret = AVERROR(EINVAL);
             goto fail;
         }
 
-        inputs[ch->input] |= ch->in_channel;
+        inputs[ch->input] |= 1ULL << ch->in_channel;
     }
 
     /* guess channel maps when not explicitly defined */
@@ -349,12 +339,12 @@ static int join_config_output(AVFilterLink *outlink)
         if (ch->input < 0) {
             av_log(ctx, AV_LOG_ERROR, "Could not find input channel for "
                    "output channel '%s'.\n",
-                   av_get_channel_name(ch->out_channel));
+                   av_channel_name(ch->out_channel));
             goto fail;
         }
 
-        ch->in_channel_idx = 
av_get_channel_layout_channel_index(ctx->inputs[ch->input]->channel_layout,
-                                                                 
ch->in_channel);
+        ch->in_channel_idx = 
av_channel_layout_channel_index(&ctx->inputs[ch->input]->ch_layout,
+                                                             ch->in_channel);
     }
 
     /* print mappings */
@@ -362,8 +352,8 @@ static int join_config_output(AVFilterLink *outlink)
     for (i = 0; i < s->nb_channels; i++) {
         ChannelMap *ch = &s->channels[i];
         av_log(ctx, AV_LOG_VERBOSE, "%d.%s => %s ", ch->input,
-               av_get_channel_name(ch->in_channel),
-               av_get_channel_name(ch->out_channel));
+               av_channel_name(ch->in_channel),
+               av_channel_name(ch->out_channel));
     }
     av_log(ctx, AV_LOG_VERBOSE, "\n");
 
@@ -469,7 +459,9 @@ static int join_request_frame(AVFilterLink *outlink)
     }
 
     frame->nb_samples     = nb_samples;
-    frame->channel_layout = outlink->channel_layout;
+    ret = av_channel_layout_copy(&frame->ch_layout, &outlink->ch_layout);
+    if (ret < 0)
+        goto fail;
     frame->sample_rate    = outlink->sample_rate;
     frame->format         = outlink->format;
     frame->pts            = s->input_frames[0]->pts;
-- 
2.12.0

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