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avutil: use align == 0 for default alignment in audio sample buffer functions

This commit is contained in:
Justin Ruggles 2012-03-27 21:31:14 -04:00
parent 18ed3788b0
commit 0109a09dc3
3 changed files with 8 additions and 3 deletions

View File

@ -153,7 +153,7 @@
#define LIBAVUTIL_VERSION_MAJOR 51
#define LIBAVUTIL_VERSION_MINOR 27
#define LIBAVUTIL_VERSION_MICRO 1
#define LIBAVUTIL_VERSION_MICRO 2
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
LIBAVUTIL_VERSION_MINOR, \

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@ -123,6 +123,10 @@ int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples,
if (!sample_size || nb_samples <= 0 || nb_channels <= 0)
return AVERROR(EINVAL);
/* auto-select alignment if not specified */
if (!align)
align = 32;
/* check for integer overflow */
if (nb_channels > INT_MAX / align ||
(int64_t)nb_channels * nb_samples > (INT_MAX - (align * nb_channels)) / sample_size)

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@ -121,6 +121,7 @@ int av_sample_fmt_is_planar(enum AVSampleFormat sample_fmt);
* @param nb_channels the number of channels
* @param nb_samples the number of samples in a single channel
* @param sample_fmt the sample format
* @param align buffer size alignment (0 = default, 1 = no alignment)
* @return required buffer size, or negative error code on failure
*/
int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples,
@ -144,7 +145,7 @@ int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples,
* @param nb_channels the number of channels
* @param nb_samples the number of samples in a single channel
* @param sample_fmt the sample format
* @param align buffer size alignment (1 = no alignment required)
* @param align buffer size alignment (0 = default, 1 = no alignment)
* @return 0 on success or a negative error code on failure
*/
int av_samples_fill_arrays(uint8_t **audio_data, int *linesize, uint8_t *buf,
@ -160,7 +161,7 @@ int av_samples_fill_arrays(uint8_t **audio_data, int *linesize, uint8_t *buf,
* @param[out] linesize aligned size for audio buffer(s), may be NULL
* @param nb_channels number of audio channels
* @param nb_samples number of samples per channel
* @param align buffer size alignment (1 = no alignment required)
* @param align buffer size alignment (0 = default, 1 = no alignment)
* @return 0 on success or a negative error code on failure
* @see av_samples_fill_arrays()
*/