Desired output channel layout. Defaults to stereo.
@item map
-Map channels from inputs to output. The argument is a comma-separated list of
+Map channels from inputs to output. The argument is a '|'-separated list of
mappings, each in the @code{@var{input_idx}.@var{in_channel}-@var{out_channel}}
form. @var{input_idx} is the 0-based index of the input stream. @var{in_channel}
can be either the name of the input channel (e.g. FL for front left) or its
To build a 5.1 output from 6 single-channel streams:
@example
avconv -i fl -i fr -i fc -i sl -i sr -i lfe -filter_complex
-'join=inputs=6:channel_layout=5.1:map=0.0-FL\,1.0-FR\,2.0-FC\,3.0-SL\,4.0-SR\,5.0-LFE'
+'join=inputs=6:channel_layout=5.1:map=0.0-FL|1.0-FR|2.0-FC|3.0-SL|4.0-SR|5.0-LFE'
out
@end example
static int parse_maps(AVFilterContext *ctx)
{
JoinContext *s = ctx->priv;
+ char separator = '|';
char *cur = s->map;
+#if FF_API_OLD_FILTER_OPTS
+ if (cur && strchr(cur, ',')) {
+ av_log(ctx, AV_LOG_WARNING, "This syntax is deprecated, use '|' to "
+ "separate the mappings.\n");
+ separator = ',';
+ }
+#endif
+
while (cur && *cur) {
char *sep, *next, *p;
uint64_t in_channel = 0, out_channel = 0;
int input_idx, out_ch_idx, in_ch_idx;
- next = strchr(cur, ',');
+ next = strchr(cur, separator);
if (next)
*next++ = 0;
JoinContext *s = ctx->priv;
int ret, i;
- s->class = &join_class;
- av_opt_set_defaults(s);
- if ((ret = av_set_options_string(s, args, "=", ":")) < 0) {
- av_log(ctx, AV_LOG_ERROR, "Error parsing options string '%s'.\n", args);
- return ret;
- }
-
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);
.description = NULL_IF_CONFIG_SMALL("Join multiple audio streams into "
"multi-channel output"),
.priv_size = sizeof(JoinContext),
+ .priv_class = &join_class,
.init = join_init,
.uninit = join_uninit,