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avpacket: Error out when creating 0-sized side data
This mimics the behaviour of other av_*_new_side_data(). This is not caught by the malloc check, since padding is always added to the allocated size. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
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@ -265,7 +265,7 @@ uint8_t *av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
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int ret;
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uint8_t *data;
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if ((unsigned)size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
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if (!size || (unsigned)size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
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return NULL;
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data = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
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if (!data)
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