* av_opt_set_int(swr, "out_channel_layout", AV_CH_LAYOUT_STEREO, 0);
* av_opt_set_int(swr, "in_sample_rate", 48000, 0);
* av_opt_set_int(swr, "out_sample_rate", 44100, 0);
- * av_opt_set_int(swr, "in_sample_fmt", AV_SAMPLE_FMT_FLTP, 0);
- * av_opt_set_int(swr, "out_sample_fmt, AV_SAMPLE_FMT_S16, 0);
+ * av_opt_set_sample_fmt(swr, "in_sample_fmt", AV_SAMPLE_FMT_FLTP, 0);
+ * av_opt_set_sample_fmt(swr, "out_sample_fmt, AV_SAMPLE_FMT_S16, 0);
* @endcode
*
* Once all values have been set, it must be initialized with swr_init(). If
* int in_samples;
*
* while (get_input(&input, &in_samples)) {
- * uint8_t *output
+ * uint8_t *output;
* int out_samples = av_rescale_rnd(swr_get_delay(swr, 48000) +
* in_samples, 44100, 48000, AV_ROUND_UP);
* av_samples_alloc(&output, NULL, 2, out_samples,
* swr_free().
*/
-#include <inttypes.h>
+#include <stdint.h>
#include "libavutil/samplefmt.h"
#include "libswresample/version.h"
/**
* Convert the next timestamp from input to output
- * timestampe are in 1/(in_sample_rate * out_sample_rate) units.
+ * timestamps are in 1/(in_sample_rate * out_sample_rate) units.
*
* @note There are 2 slightly differently behaving modes.
* First is when automatic timestamp compensation is not used, (min_compensation >= FLT_MAX)
* Second is when automatic timestamp compensation is used, (min_compensation < FLT_MAX)
* in this case the output timestamps will match output sample numbers
*
- * @param pts timstamp for the next input sample, INT64_MIN if unknown
- * @returns the output timestamp for the next output sample
+ * @param pts timestamp for the next input sample, INT64_MIN if unknown
+ * @return the output timestamp for the next output sample
*/
int64_t swr_next_pts(struct SwrContext *s, int64_t pts);
* Swresample can buffer data if more input has been provided than available
* output space, also converting between sample rates needs a delay.
* This function returns the sum of all such delays.
+ * The exact delay is not necessarily an integer value in either input or
+ * output sample rate. Especially when downsampling by a large value, the
+ * output sample rate may be a poor choice to represent the delay, similarly
+ * for upsampling and the input sample rate.
*
* @param s swr context
* @param base timebase in which the returned delay will be