* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "common.h"
#include "samplefmt.h"
#include <stdio.h>
0 : sample_fmt_info[sample_fmt].bits >> 3;
}
-#if FF_API_GET_BITS_PER_SAMPLE_FMT
-int av_get_bits_per_sample_fmt(enum AVSampleFormat sample_fmt)
-{
- return sample_fmt < 0 || sample_fmt >= AV_SAMPLE_FMT_NB ?
- 0 : sample_fmt_info[sample_fmt].bits;
-}
-#endif
-
int av_sample_fmt_is_planar(enum AVSampleFormat sample_fmt)
{
if (sample_fmt < 0 || sample_fmt >= AV_SAMPLE_FMT_NB)
return AVERROR(EINVAL);
/* auto-select alignment if not specified */
- if (!align)
- align = 32;
+ if (!align) {
+ align = 1;
+ nb_samples = FFALIGN(nb_samples, 32);
+ }
/* check for integer overflow */
if (nb_channels > INT_MAX / align ||
}
int av_samples_fill_arrays(uint8_t **audio_data, int *linesize,
- uint8_t *buf, int nb_channels, int nb_samples,
+ const uint8_t *buf, int nb_channels, int nb_samples,
enum AVSampleFormat sample_fmt, int align)
{
int ch, planar, buf_size, line_size;
if (size < 0)
return size;
- buf = av_mallocz(size);
+ buf = av_malloc(size);
if (!buf)
return AVERROR(ENOMEM);
av_free(buf);
return size;
}
+
+ av_samples_set_silence(audio_data, 0, nb_samples, nb_channels, sample_fmt);
+
+ return 0;
+}
+
+int av_samples_copy(uint8_t **dst, uint8_t * const *src, int dst_offset,
+ int src_offset, int nb_samples, int nb_channels,
+ enum AVSampleFormat sample_fmt)
+{
+ int planar = av_sample_fmt_is_planar(sample_fmt);
+ int planes = planar ? nb_channels : 1;
+ int block_align = av_get_bytes_per_sample(sample_fmt) * (planar ? 1 : nb_channels);
+ int data_size = nb_samples * block_align;
+ int i;
+
+ dst_offset *= block_align;
+ src_offset *= block_align;
+
+ for (i = 0; i < planes; i++)
+ memcpy(dst[i] + dst_offset, src[i] + src_offset, data_size);
+
+ return 0;
+}
+
+int av_samples_set_silence(uint8_t **audio_data, int offset, int nb_samples,
+ int nb_channels, enum AVSampleFormat sample_fmt)
+{
+ int planar = av_sample_fmt_is_planar(sample_fmt);
+ int planes = planar ? nb_channels : 1;
+ int block_align = av_get_bytes_per_sample(sample_fmt) * (planar ? 1 : nb_channels);
+ int data_size = nb_samples * block_align;
+ int fill_char = (sample_fmt == AV_SAMPLE_FMT_U8 ||
+ sample_fmt == AV_SAMPLE_FMT_U8P) ? 0x80 : 0x00;
+ int i;
+
+ offset *= block_align;
+
+ for (i = 0; i < planes; i++)
+ memset(audio_data[i] + offset, fill_char, data_size);
+
return 0;
}