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Kovid Goyal 2024-10-09 14:42:53 +05:30
parent adb38e258d
commit 33499a6040
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1 changed files with 5 additions and 3 deletions
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src/calibre/utils/ffmpeg.c
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@ -51,10 +51,12 @@ resample_raw_audio_16bit(PyObject *self, PyObject *args) {
#define free_resources av_free(output); PyBuffer_Release(&inb); swr_free(&swr_ctx);
if ((ret = swr_init(swr_ctx)) < 0) { free_resources; return averror_as_python(ret); }
const uint8_t *input = inb.buf;
Py_BEGIN_ALLOW_THREADS
ret = swr_convert(swr_ctx,
&output, output_size / (output_num_channels * bytes_per_sample),
&input, inb.len / (input_num_channels * bytes_per_sample)
);
Py_END_ALLOW_THREADS
if (ret < 0) { free_resources; return averror_as_python(ret); }
output_size = ret * output_num_channels * bytes_per_sample;
PyObject *ans = PyBytes_FromStringAndSize((char*)output, output_size);