103
105
{ "downmix", 2, AV_CH_LAYOUT_STEREO_DOWNMIX, },
108
#if FF_API_GET_CHANNEL_LAYOUT_COMPAT
109
static uint64_t get_channel_layout_single(const char *name, int name_len, int compat)
106
111
static uint64_t get_channel_layout_single(const char *name, int name_len)
120
126
!memcmp(channel_names[i].name, name, name_len))
121
127
return (int64_t)1 << i;
122
128
i = strtol(name, &end, 10);
123
if (end - name == name_len ||
124
(end + 1 - name == name_len && *end == 'c'))
130
#if FF_API_GET_CHANNEL_LAYOUT_COMPAT
132
if (end - name == name_len ||
133
(end + 1 - name == name_len && *end == 'c')) {
134
layout = av_get_default_channel_layout(i);
135
if (end - name == name_len) {
136
av_log(NULL, AV_LOG_WARNING,
137
"Single channel layout '%.*s' is interpreted as a number of channels, "
138
"switch to the syntax '%.*sc' otherwise it will be interpreted as a "
139
"channel layout number in a later version\n",
140
name_len, name, name_len, name);
146
if ((end + 1 - name == name_len && *end == 'c'))
125
147
return av_get_default_channel_layout(i);
148
#if FF_API_GET_CHANNEL_LAYOUT_COMPAT
126
152
layout = strtoll(name, &end, 0);
127
153
if (end - name == name_len)
128
154
return FFMAX(layout, 0);
158
#if FF_API_GET_CHANNEL_LAYOUT_COMPAT
159
uint64_t ff_get_channel_layout(const char *name, int compat)
132
161
uint64_t av_get_channel_layout(const char *name)
134
164
const char *n, *e;
135
165
const char *name_end = name + strlen(name);
138
168
for (n = name; n < name_end; n = e + 1) {
139
169
for (e = n; e < name_end && *e != '+' && *e != '|'; e++);
170
#if FF_API_GET_CHANNEL_LAYOUT_COMPAT
171
layout_single = get_channel_layout_single(n, e - n, compat);
140
173
layout_single = get_channel_layout_single(n, e - n);
141
175
if (!layout_single)
143
177
layout |= layout_single;
182
#if FF_API_GET_CHANNEL_LAYOUT_COMPAT
183
uint64_t av_get_channel_layout(const char *name)
185
return ff_get_channel_layout(name, 1);
148
189
void av_bprint_channel_layout(struct AVBPrint *bp,
149
190
int nb_channels, uint64_t channel_layout)