优化speakid和语句匹配逻辑，部分解决speakid不从0递增问题 (#1870)

wuhongsheng

2024-07-05 3a4281f4959534b1bf5d01acf0085f4f8e6f2ec8

 funasr/datasets/audio_datasets/samplers.py

@@ -334,6 +334,7 @@
        drop_last=False,
        is_training: bool = True,
        sort_size: int = 1024,
        start_step: int = 0,
        **kwargs,
    ):

@@ -364,11 +365,14 @@
        self.sort_size = sort_size * num_replicas
        self.max_token_length = kwargs.get("max_token_length", 2048)
        self.length_scale_source = kwargs.get("length_scale_source", 1.0)
        self.start_step = kwargs.get("start_step", 2048)

        super().__init__(
            dataset, num_replicas=num_replicas, rank=rank, shuffle=shuffle, drop_last=drop_last
        )
        self.batch_size_sample_max = kwargs.get("batch_size_sample_max", 200)
        self.start_step = start_step
        self.batch_num = 1
        if self.start_step > 0:
            logging.info(f"Warning, start_step > 0, dataloader start from step: {self.start_step}")
        # super().__init__(
        #     dataset, num_replicas=num_replicas, rank=rank, shuffle=shuffle, drop_last=drop_last
        # )

    def __iter__(self):
        if self.shuffle:
@@ -388,19 +392,22 @@
            )
            batch = []
            max_len_in_batch = 0
            count = 1
            for idx in buffer:
                original_sample_length = self.dataset.get_source_len(idx)
                if original_sample_length > self.max_token_length:
                    continue
                sample_length = 1 if self.batch_type == "example" else original_sample_length
                potential_batch_length = max(max_len_in_batch, sample_length) * (len(batch) + 1)
                if potential_batch_length <= self.batch_size:
                if potential_batch_length <= self.batch_size and count < self.batch_size_sample_max:
                    batch.append(idx)
                    max_len_in_batch = max(max_len_in_batch, sample_length)
                    count += 1
                else:
                    buffer_batches.append(batch)
                    batch = [idx]
                    max_len_in_batch = sample_length
                    count = 1
            if batch:
                buffer_batches.append(batch)

@@ -421,7 +428,7 @@
        self.batch_num = len(final_batches)

        logging.info(
            f"rank: {self.rank}, dataloader start from step: {self.start_step}, batch_num: {self.batch_num}"
            f"rank: {self.rank}, dataloader start from step: {self.start_step}, batch_num: {len(rank_batches[self.rank])}, after: {self.batch_num}"
        )
        return iter(final_batches)