* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavutil/eval.h"
#include "libavutil/pixdesc.h"
#include "libavutil/audioconvert.h"
#include "avfilter.h"
}
}
+/* internal functions for parsing audio format arguments */
+
+int ff_parse_sample_format(int *ret, const char *arg, void *log_ctx)
+{
+ char *tail;
+ int sfmt = av_get_sample_fmt(arg);
+ if (sfmt == AV_SAMPLE_FMT_NONE) {
+ sfmt = strtol(arg, &tail, 0);
+ if (*tail || (unsigned)sfmt >= AV_SAMPLE_FMT_NB) {
+ av_log(log_ctx, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
+ return AVERROR(EINVAL);
+ }
+ }
+ *ret = sfmt;
+ return 0;
+}
+
+int ff_parse_sample_rate(unsigned *ret, const char *arg, void *log_ctx)
+{
+ char *tail;
+ double srate = av_strtod(arg, &tail);
+ if (*tail || srate < 1 || (int)srate != srate) {
+ av_log(log_ctx, AV_LOG_ERROR, "Invalid sample rate '%s'\n", arg);
+ return AVERROR(EINVAL);
+ }
+ *ret = srate;
+ return 0;
+}
+
+int ff_parse_channel_layout(int64_t *ret, const char *arg, void *log_ctx)
+{
+ char *tail;
+ int64_t chlayout = av_get_channel_layout(arg);
+ if (chlayout == 0) {
+ chlayout = strtol(arg, &tail, 10);
+ if (*tail || chlayout == 0) {
+ av_log(log_ctx, AV_LOG_ERROR, "Invalid channel layout '%s'\n", arg);
+ return AVERROR(EINVAL);
+ }
+ }
+ *ret = chlayout;
+ return 0;
+}
+
+int ff_parse_packing_format(int *ret, const char *arg, void *log_ctx)
+{
+ char *tail;
+ int planar = strtol(arg, &tail, 10);
+ if (*tail) {
+ planar = (strcmp(arg, "packed") != 0);
+ } else if (planar != 0 && planar != 1) {
+ av_log(log_ctx, AV_LOG_ERROR, "Invalid packing format '%s'\n", arg);
+ return AVERROR(EINVAL);
+ }
+ *ret = planar;
+ return 0;
+}
+
/** Tell is a format is contained in the provided list terminated by -1. */
int ff_fmt_is_in(int fmt, const int *fmts);
+/* Functions to parse audio format arguments */
+
+/**
+ * Parse a sample rate.
+ *
+ * @param ret unsigned integer pointer to where the value should be written
+ * @param arg string to parse
+ * @param log_ctx log context
+ * @return 0 in case of success, a negative AVERROR code on error
+ */
+int ff_parse_sample_rate(unsigned *ret, const char *arg, void *log_ctx);
+
+/**
+ * Parse a sample format name or a corresponding integer representation.
+ *
+ * @param ret integer pointer to where the value should be written
+ * @param arg string to parse
+ * @param log_ctx log context
+ * @return 0 in case of success, a negative AVERROR code on error
+ */
+int ff_parse_sample_format(int *ret, const char *arg, void *log_ctx);
+
+/**
+ * Parse a channel layout or a corresponding integer representation.
+ *
+ * @param ret 64bit integer pointer to where the value should be written.
+ * @param arg string to parse
+ * @param log_ctx log context
+ * @return 0 in case of success, a negative AVERROR code on error
+ */
+int ff_parse_channel_layout(int64_t *ret, const char *arg, void *log_ctx);
+
+/**
+ * Parse a packing format or a corresponding integer representation.
+ *
+ * @param ret integer pointer to where the value should be written
+ * @param arg string to parse
+ * @param log_ctx log context
+ * @return 0 in case of success, a negative AVERROR code on error
+ */
+int ff_parse_packing_format(int *ret, const char *arg, void *log_ctx);
+
#endif /* AVFILTER_INTERNAL_H */