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avutil: use align == 0 for default alignment in audio sample buffer functions
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@ -153,7 +153,7 @@
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#define LIBAVUTIL_VERSION_MAJOR 51
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#define LIBAVUTIL_VERSION_MINOR 27
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#define LIBAVUTIL_VERSION_MICRO 1
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#define LIBAVUTIL_VERSION_MICRO 2
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#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
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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,
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if (!sample_size || nb_samples <= 0 || nb_channels <= 0)
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return AVERROR(EINVAL);
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/* auto-select alignment if not specified */
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if (!align)
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align = 32;
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/* check for integer overflow */
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if (nb_channels > INT_MAX / align ||
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(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);
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* @param nb_channels the number of channels
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* @param nb_samples the number of samples in a single channel
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* @param sample_fmt the sample format
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* @param align buffer size alignment (0 = default, 1 = no alignment)
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* @return required buffer size, or negative error code on failure
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*/
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int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples,
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@ -144,7 +145,7 @@ int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples,
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* @param nb_channels the number of channels
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* @param nb_samples the number of samples in a single channel
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* @param sample_fmt the sample format
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* @param align buffer size alignment (1 = no alignment required)
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* @param align buffer size alignment (0 = default, 1 = no alignment)
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* @return 0 on success or a negative error code on failure
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*/
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int av_samples_fill_arrays(uint8_t **audio_data, int *linesize, uint8_t *buf,
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@ -160,7 +161,7 @@ int av_samples_fill_arrays(uint8_t **audio_data, int *linesize, uint8_t *buf,
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* @param[out] linesize aligned size for audio buffer(s), may be NULL
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* @param nb_channels number of audio channels
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* @param nb_samples number of samples per channel
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* @param align buffer size alignment (1 = no alignment required)
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* @param align buffer size alignment (0 = default, 1 = no alignment)
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* @return 0 on success or a negative error code on failure
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* @see av_samples_fill_arrays()
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*/
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